阅读说明：本技术 复合石墨烯改性织物及其制备方法、手指套、手套 (Composite graphene modified fabric and preparation method thereof, finger stall and glove ) 是由 黄李强 孙学栋 于 2020-12-02 设计创作，主要内容包括：本发明属于导电织物纤维材料技术领域,具体涉及一种复合石墨烯改性织物及其制备方法、手指套、手套。本发明将氧化石墨烯改性锦纶和氧化石墨烯改性氨纶按照(7-9):(1-3)的重量配比,所得复合石墨烯改性织物轻薄透气且弹性好,用于制备手套或手指套时,所得手套或手指套在触屏操作时可减少或避免出现断触的问题,且长时间穿戴依然舒爽不闷热,提高了触屏操作的精准度和穿戴舒适度,具有良好的应用前景。(The invention belongs to the technical field of conductive fabric fiber materials, and particularly relates to a composite graphene modified fabric and a preparation method thereof, a finger stall and gloves. According to the invention, the graphene oxide modified polyamide fiber and the graphene oxide modified spandex are mixed according to the weight ratio of (7-9) to (1-3), the obtained composite graphene modified fabric is light, thin, breathable and good in elasticity, when the composite graphene modified polyamide fiber and the graphene oxide modified spandex are used for preparing gloves or finger gloves, the problem of touch interruption can be reduced or avoided when the obtained gloves or finger gloves are used for touch screen operation, the gloves or finger gloves are still comfortable and not stuffy after being worn for a long time, the accuracy and the wearing comfort of the touch screen operation are improved, and the composite graphene modified polyamide fiber and the graphene oxide modified spandex.)

1. The composite graphene modified fabric is characterized by comprising the following components in percentage by weight of 100 percent of the total weight of the composite graphene modified fabric:

70-90% of graphene oxide modified polyamide

10% -30% of graphene oxide modified spandex.

2. The composite graphene modified fabric according to claim 1, wherein in the graphene oxide modified nylon, the weight of graphene oxide accounts for 0.2% -1% of the weight of the graphene oxide modified nylon; and/or

In the graphene oxide modified spandex, the weight of graphene oxide accounts for 0.2-1% of the weight of the graphene oxide modified spandex.

3. The preparation method of the composite graphene modified fabric is characterized by comprising the following steps:

mixing graphene oxide, chinlon and an organic solvent to obtain a graphene oxide modified chinlon mixed solution, and molding the graphene oxide modified chinlon mixed solution to obtain graphene oxide modified chinlon;

carrying out spandex prepolymerization reaction on polyether polyol and diisocyanate to obtain a spandex prepolymer; mixing the polyurethane prepolymer, graphene oxide and an organic solvent, and carrying out chain extension reaction and chain termination reaction to obtain a graphene oxide modified polyurethane polymerization solution; curing and molding the graphene oxide modified spandex polymerization solution to obtain graphene oxide modified spandex;

and (2) carrying out mixed spinning treatment on the graphene oxide modified polyamide and the graphene oxide modified spandex according to the weight ratio of (7-9) to (1-3) to obtain the composite graphene modified fabric.

4. The method for preparing the composite graphene modified fabric according to claim 3, wherein in the graphene oxide modified nylon, the weight of graphene oxide accounts for 0.2% -1% of the weight of the graphene oxide modified nylon; and/or

In the graphene oxide modified spandex, the weight of graphene oxide accounts for 0.2-1% of the weight of the graphene oxide modified spandex.

5. The method for preparing the composite graphene-modified fabric according to claim 3, wherein in the step of subjecting the graphene oxide-modified polyamide mixed solution to molding treatment, the molding treatment is melt extrusion of the graphene oxide-modified polyamide mixed solution through a screw extruder.

6. The method for preparing the composite graphene modified fabric according to claim 5, wherein the screw extruder is a twin-screw extruder, the twin-screw extruder is provided with 6 processing temperature zones, the temperature is 255-265 ℃, 275-285 ℃, 255-265 ℃ and 255-265 ℃ in sequence, and the die temperature is 255-265 ℃.

7. The method for preparing the composite graphene modified fabric according to claim 3, wherein in the step of subjecting the polyether polyol and the diisocyanate to a spandex prepolymerization reaction, the mass ratio of the polyether polyol to the diisocyanate is 1 (1.8-2.5); and/or

In the step of carrying out spandex prepolymerization reaction on polyether polyol and diisocyanate, the reaction temperature of the spandex prepolymerization reaction is 70-90 ℃, and the reaction time is 1-2 h; and/or

The curing temperature is 40-50 ℃.

8. The method for preparing the composite graphene-modified fabric according to any one of claims 3 to 7, wherein the polyether polyol is polyether glycol; and/or

The organic solvent is N, N-dimethylformamide and/or acetamide.

9. A finger stall, which is characterized in that the finger stall is made of the composite graphene modified fabric according to any one of claims 1 to 2 or the composite graphene modified fabric prepared by the preparation method according to any one of claims 3 to 8.

10. A glove comprising a palm portion and finger portions connected to the palm portion, wherein at least the finger portions are made of the composite graphene-modified fabric according to any one of claims 1 to 2 or the composite graphene-modified fabric obtained by the preparation method according to any one of claims 3 to 8.

Technical Field

The invention belongs to the technical field of conductive fabric fiber materials, and particularly relates to a composite graphene modified fabric and a preparation method thereof, a finger stall and a glove.

Background

It is known that when a finger operates an electronic screen for a long time, screen operation is slippery due to sweating of the finger, and screen touch reaction is insensitive and frequency hopping occurs. In addition, sweat/other foreign substances remaining on the screen may be adhered to the surface of the screen after heat emitted from the electronic device during long-time operation is evaporated, and thus frictional force of the fingers sliding on the screen becomes very large. In order to achieve efficient, accurate and smooth operation of a touch screen, the problems that hand sweat is dried and the screen is cleaned at intervals can be solved temporarily, and great troubles are caused to electronic competitive players needing to manually and finely operate an electronic screen and accurate touch screen operators needing high-end fine operation.

Disclosure of Invention

The invention aims to provide a composite graphene modified fabric and a preparation method thereof, a finger stall and a glove, and aims to solve the problems of slippage, reaction insensitivity and the like in the existing occasions needing fine touch screen operation.

In order to achieve the above object, according to an aspect of the present invention, there is provided a composite graphene modified fabric, which comprises the following components, based on 100% by weight of the composite graphene modified fabric:

70-90% of graphene oxide modified polyamide

10% -30% of graphene oxide modified spandex.

In the composite graphene modified fabric provided by the invention, the graphene oxide modified polyamide fiber and the graphene oxide modified spandex have stronger conductivity, moisture-proof, breathable and odor-absorbing properties and stronger tensile deformation resistance due to the modification of the graphene oxide. According to the invention, the graphene oxide modified polyamide fiber and the graphene oxide modified spandex are mixed according to the weight ratio of (7-9) to (1-3), so that the obtained composite graphene modified fabric is light, thin, breathable, good in elasticity, capable of being used for manufacturing various clothes, and good in application prospect.

In another aspect of the present invention, a preparation method of a composite graphene modified fabric is provided, which includes the following steps:

mixing graphene oxide, chinlon and an organic solvent to obtain a graphene oxide modified chinlon mixed solution, and molding the graphene oxide modified chinlon mixed solution to obtain graphene oxide modified chinlon;

carrying out spandex prepolymerization reaction on polyether polyol and diisocyanate to obtain a spandex prepolymer; mixing the polyurethane prepolymer, graphene oxide and an organic solvent, and carrying out chain extension reaction and chain termination reaction to obtain a graphene oxide modified polyurethane polymerization solution; curing and molding the graphene oxide modified spandex polymerization solution to obtain graphene oxide modified spandex;

and (2) carrying out mixed spinning treatment on the graphene oxide modified polyamide and the graphene oxide modified spandex according to the weight ratio of (7-9) to (1-3) to obtain the composite graphene modified fabric.

In the preparation method provided by the invention, the modification method of chinlon and spandex is simple and convenient to operate and easy to implement, and the used raw materials are low in cost and high in production efficiency. The obtained composite graphene modified fabric has stronger conductivity, moisture-proof, breathable and odor-absorbing performance and stronger tensile deformation resistance.

In another aspect of the invention, a finger stall is provided, and the finger stall is made of the composite graphene modified fabric provided by the invention or the composite graphene modified fabric prepared by the preparation method provided by the invention.

The composite graphene modified fabric provided by the invention has stronger conductivity, moisture-proof, breathable and odor-absorbing performance and stretch-deformation-resistant capacity, so that the finger stall made of the composite graphene modified fabric has better elasticity, high touch screen sensitivity and good wearing comfort. When the finger stall provided by the invention is worn, the problem of touch interruption can be reduced or avoided during touch screen operation, and the finger stall is still comfortable and not sultry after being worn for a long time, so that the touch screen operation accuracy and the wearing comfort are improved.

In a final aspect of the present invention, a glove is provided, which includes a palm portion and finger portions connected to the palm portion, wherein at least the finger portions are made of the composite graphene modified fabric provided by the present invention or the composite graphene modified fabric prepared by the preparation method provided by the present invention.

According to the glove provided by the invention, the fingers and even the whole glove are made of the composite graphene modified fabric provided by the invention, and the glove has the advantages of good elasticity, high touch screen sensitivity and good wearing comfort. When the glove provided by the invention is worn, the problem of touch interruption can be reduced or avoided during touch screen operation, and the glove is still comfortable and not sultry after being worn for a long time, so that the accuracy of touch screen operation and the wearing comfort are improved.

Detailed Description

In order to make the objects, technical solutions and technical effects of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and the embodiments described below are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive step in connection with the embodiments of the present invention shall fall within the scope of protection of the present invention. Those whose specific conditions are not specified in the examples are carried out according to conventional conditions or conditions recommended by the manufacturer; the reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

In the description of the present invention, the term "and/or" describing an association relationship of associated objects means that there may be three relationships, for example, a and/or B, may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

It should be understood that the weight of the related components mentioned in the embodiments of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, it is within the scope of the disclosure that the content of the related components is scaled up or down according to the embodiments of the present invention. Specifically, the weight described in the embodiments of the present invention may be a unit of mass known in the chemical field such as μ g, mg, g, kg, etc.

In addition, unless the context clearly uses otherwise, an expression of a word in the singular is to be understood as including the plural of the word. The terms "comprises" or "comprising" are intended to specify the presence of stated features, quantities, steps, operations, elements, portions, or combinations thereof, but are not intended to preclude the presence or addition of one or more other features, quantities, steps, operations, elements, portions, or combinations thereof.

The embodiment of the invention provides a composite graphene modified fabric, which comprises the following components in percentage by weight of 100 percent of the total weight of the composite graphene modified fabric:

70-90% of graphene oxide modified polyamide

10% -30% of graphene oxide modified spandex.

In the composite graphene modified fabric provided by the embodiment of the invention, the graphene oxide modified polyamide fiber and the graphene oxide modified spandex have stronger conductivity, moisture-proof, breathable and odor-absorbing properties and stronger tensile deformation resistance due to the modification of the graphene oxide. According to the invention, the graphene oxide modified polyamide fiber and the graphene oxide modified spandex are mixed according to the weight ratio of (7-9) to (1-3), so that the obtained composite graphene modified fabric is light, thin, breathable, good in elasticity, capable of being used for manufacturing various clothes, and good in application prospect.

Chinlon, also known as nylon or polyamide fiber, is a common synthetic fiber. The graphene oxide modified nylon is obtained by modifying nylon through graphene oxide. The graphene oxide modified nylon used in the embodiment of the invention can adopt the existing graphene oxide modified nylon in the field, and preferably adopts the graphene oxide modified nylon prepared by the preparation method provided in the embodiment of the invention. In some embodiments, the graphene oxide-modified nylon comprises 0.2% to 1% by weight of graphene oxide. If the amount of the graphene oxide is too small, the touch screen sensitivity requirement of the obtained composite graphene modified fabric cannot be improved; if the amount of the graphene oxide is too large, the problems of excessive performance, increased cost and insufficient softness of the obtained composite graphene modified fabric are caused. In some specific embodiments, the graphene oxide is selected from at least one of SE1231, SE1232, and SE1233 of the sennito corporation of changzhou, and the graphene oxide has a lower percolation threshold, more stable conductivity, and excellent mechanical properties and corrosion resistance compared with conductive carbon black, and can achieve an excellent (static) conducting effect with a smaller amount; meanwhile, the graphene oxide sheets are thinner, so that the dispersibility of the graphene oxide sheets in a solvent is improved, and the graphene oxide sheets are easier to process. Specifically, the weight ratio of the graphene oxide to the graphene oxide modified nylon is typically, but not limited to, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%.

Spandex, also known as polyurethane fiber, is an elastic fiber. The graphene oxide modified spandex is obtained by modifying spandex through graphene oxide. The graphene oxide modified spandex used in the embodiment of the invention can be the existing graphene oxide modified spandex in the field, and preferably the graphene oxide modified spandex prepared by the preparation method provided by the embodiment of the invention. In some embodiments, the graphene oxide-modified spandex has a weight of graphene oxide of 0.2% to 1% of the weight of the graphene oxide-modified spandex. If the amount of the graphene oxide is too small, the touch screen sensitivity requirement of the obtained composite graphene modified fabric cannot be improved; if the amount of the graphene oxide is too large, the problems of excessive performance, increased cost and insufficient softness of the obtained composite graphene modified fabric are caused. In some embodiments, the graphene oxide is selected from at least one of SE1231, SE1232, SE1233 of hexahydric corporation, chanzhou. Specifically, the weight ratio of the graphene oxide in the graphene oxide modified spandex is typically, but not limited to, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%.

As a preferred embodiment, in the composite graphene modified fabric provided in the embodiment of the present invention, the weight ratio of the graphene oxide modified polyamide fiber to the graphene oxide modified spandex is (7-9) to (1-3), and the weight of the graphene oxide accounts for 0.1% to 1% of the weight of the graphene oxide modified polyamide fiber, and the weight of the graphene oxide accounts for 0.1% to 1% of the weight of the graphene oxide modified spandex. Under the condition, the obtained composite graphene modified fabric has ultrahigh elasticity and light, thin and breathable effects, is more suitable to be used as a fabric material for manufacturing finger stalls or gloves, and meets the requirement of high touch sensitivity during touch screen operation.

The composite graphene modified fabric provided by the embodiment of the invention can be prepared by the following preparation method.

Correspondingly, the embodiment of the invention provides a preparation method of a composite graphene modified fabric, which comprises the following steps:

s1, mixing graphene oxide, chinlon and an organic solvent to obtain a graphene oxide modified chinlon mixed solution, and molding the graphene oxide modified chinlon mixed solution to obtain graphene oxide modified chinlon;

s2, carrying out spandex prepolymerization reaction on polyether polyol and diisocyanate to obtain a spandex prepolymer; mixing the polyurethane prepolymer, graphene oxide and an organic solvent, and carrying out chain extension reaction and chain termination reaction to obtain a graphene oxide modified polyurethane polymerization solution; curing and molding the graphene oxide modified spandex polymerization solution to obtain graphene oxide modified spandex;

s3, carrying out mixed spinning treatment on the graphene oxide modified polyamide and the graphene oxide modified spandex according to the weight ratio of (7-9) to (1-3) to obtain the composite graphene modified fabric.

In the preparation method provided by the embodiment of the invention, the modification method of chinlon and spandex is simple and convenient to operate and easy to implement, and the used raw materials are low in cost and high in production efficiency. The obtained composite graphene modified fabric has stronger conductivity, moisture-proof, breathable and odor-absorbing performance and stronger tensile deformation resistance.

It should be noted that S1 and S2 are only used to illustrate that graphene oxide modified nylon and graphene oxide modified spandex are prepared separately in the embodiment of the present invention, and do not indicate a limitation on the preparation sequence of the graphene oxide modified nylon and the graphene oxide modified spandex. According to actual needs, S1 and S2 can be performed in any sequence or simultaneously.

Specifically, S1 provides a method for preparing graphene oxide modified nylon. The silk-like graphene oxide modified nylon can be prepared by molding the mixed solution of graphene oxide, nylon and an organic solvent. In some embodiments, in order to improve the modification effect, graphene oxide is first dispersed in an organic solvent to form a graphene oxide dispersion solution, and then the graphene oxide dispersion solution is mixed with nylon. The organic solvent can be selected from organic solvents which have good graphene oxide dispersion effect and are not easy to settle, and the organic solvents include but are not limited to N, N-dimethylformamide. In some embodiments, the graphene oxide is selected from at least one of SE1231, SE1232, SE1233 of hexahydric corporation, chanzhou.

In some embodiments, the addition amount of the graphene oxide is controlled, so that the weight ratio of the graphene oxide in the obtained graphene oxide modified nylon is 0.2% -1%.

The forming treatment aims to prepare the graphene oxide modified polyamide mixed solution into filamentous fibers. In some embodiments, the molding process is performed by melt extrusion using a screw extruder. In some embodiments, it is preferred to use a twin screw extruder having 6 processing temperature zones, in order of 255 ℃ to 265 ℃ in the first zone, 275 ℃ to 285 ℃ in the second zone, 275 ℃ to 285 ℃ in the third zone, 275 ℃ to 285 ℃ in the fourth zone, 255 ℃ to 265 ℃ in the fifth zone, and 255 ℃ to 265 ℃ in the sixth zone, and 255 ℃ to 265 ℃ in the die.

S2 provides a method for preparing graphene oxide modified spandex. Polyether glycol and diisocyanate are subjected to spandex prepolymerization reaction to obtain a spandex prepolymer, and the spandex prepolymer is mixed with graphene oxide and an organic solvent to perform chain extension reaction and chain termination reaction, so that the graphene oxide can be uniformly dispersed in spandex at the molecular level, and the modification effect of the graphene oxide on the spandex is improved. It will be appreciated that in order to facilitate the chain extension and chain termination reactions, chain extenders and terminators should also be added. In some embodiments, in order to improve the modification effect, graphene oxide is first dispersed in an organic solvent to form a graphene oxide dispersion, and then mixed with the spandex prepolymer. The organic solvent can be selected from organic solvents which have good graphene oxide dispersion effect and are not easy to settle, and the organic solvents include but are not limited to N, N-dimethylformamide and acetamide. In some specific embodiments, the graphene oxide is selected from at least one of SE1231, SE1232, SE1233 of hexahydric corporation, chanzhou; polyether polyol polyether glycol (PTMG) is selected.

In some embodiments, the addition amount of the graphene oxide is controlled so that the weight ratio of the graphene oxide in the obtained graphene oxide modified spandex is 0.2% -1%.

Further, in the step of performing a spandex prepolymerization reaction on the polyether polyol and the diisocyanate, the mass ratio of the polyether polyol to the diisocyanate is controlled to be 1 (1.8-2.5), preferably 1:2, according to the theoretical value of the group reaction ratio, the group content and the solid content. In particular, typical, but not limiting, mass ratios between the polyether polyol and the diisocyanate are 1:1.8, 1:1.9, 1:2.0, 1:2.1, 1:2.2, 1:2.3, 1:2.4, 1: 2.5.

Further, in the step of performing a pre-polymerization reaction of spandex with polyether polyol and diisocyanate, the temperature of the pre-polymerization reaction is controlled to 70 ℃ to 90 ℃, preferably 80 ℃, and the reaction time is controlled to 1h to 2h, preferably 1 h. The problems of incomplete reaction and undesirable polymerization are easily caused by too low temperature or too short reaction time of the prepolymerization reaction; the problem that the temperature of the prepolymerization reaction is too high or the reaction time is too long easily causes excessive crosslinking and the obtained fabric becomes brittle. Specifically, typical, but not limiting, prepolymerization temperatures are 70 deg.C, 75 deg.C, 80 deg.C, 85 deg.C, 90 deg.C; typical but not limiting prepolymerization reaction times are 1h, 1.1h, 1.2h, 1.3h, 1.4h, 1.5h, 1.6h, 1.7h, 1.8h, 1.9h and 2 h.

The graphene oxide modified spandex polymer solution is used as a spinning stock solution, and the viscosity of the graphene oxide modified spandex polymer solution can be more uniform through curing treatment, so that the spinning quality is improved, and the waste silk rate is reduced. In some embodiments, the temperature of the maturation process is controlled between 40 ℃ and 50 ℃. In the temperature range, a molecular chain can be fully unfolded into a straight chain, so that the graphene oxide modified spandex polymer liquid is increased to a proper viscosity, and the uniformity is improved. Specifically, typical but not limiting aging treatment temperature is 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, 45 degrees, 46 degrees, 47 degrees, 48 degrees, 49 degrees, 50 degrees.

In some embodiments, the molding treatment of the cured graphene oxide modified spandex polymer solution is realized by a dry spinning system. And (3) stretching and curling the graphene oxide modified spandex polymer into a silk roll by a dry spinning system, so as to obtain the graphene oxide modified spandex finished yarn.

In S3, the graphene oxide modified polyamide and the graphene oxide modified spandex are subjected to mixed spinning treatment according to the weight ratio of (7-9) to (1-3), and the composite graphene modified fabric has excellent touch sensitivity, ultrahigh elasticity and is lighter, thinner and more breathable. The method of hybrid textile treatment may employ methods conventional in the art.

The embodiment of the invention provides a finger stall which is made of the composite graphene modified fabric provided by the embodiment of the invention or the composite graphene modified fabric prepared by the preparation method provided by the embodiment of the invention.

The composite graphene modified fabric provided by the embodiment of the invention has the advantages of strong conductivity, moisture-proof, breathable and odor-absorbing properties and tensile deformation resistance, so that the composite graphene modified fabric is made into finger stalls, and has good elasticity, high touch screen sensitivity and good wearing comfort. When the finger stall provided by the embodiment of the invention is worn, the problem of touch interruption can be reduced or avoided during touch screen operation, and the finger stall is still comfortable and not sultry after being worn for a long time, so that the touch screen operation accuracy and the wearing comfort are improved.

The embodiment of the invention provides a glove, which comprises a palm part and finger parts connected with the palm part, wherein at least the finger parts are made of the composite graphene modified fabric provided by the embodiment of the invention or the composite graphene modified fabric prepared by the preparation method provided by the embodiment of the invention.

According to the glove provided by the embodiment of the invention, the finger part and even the whole glove are made of the composite graphene modified fabric provided by the embodiment of the invention, and the glove has the advantages of good elasticity, high touch screen sensitivity and good wearing comfort. When the glove provided by the embodiment of the invention is worn, the problem of touch interruption can be reduced or avoided during touch screen operation, and the glove is still comfortable and not sultry after being worn for a long time, so that the touch screen operation accuracy and the wearing comfort are improved.

In some embodiments, the palm part of the glove is also made of the composite graphene modified fabric provided in the embodiments of the present invention or the composite graphene modified fabric prepared by the preparation method of the composite graphene modified fabric provided in the embodiments of the present invention. At this moment, the material of palm portion and finger portion is unanimous, is favorable to promoting gloves tensile strength and life, reduces the process of the palm portion of different materials and the concatenation of finger portion in the manufacture process, and efficiency is higher.

In order to make the above implementation details and operations of the present invention clearly understood by those skilled in the art, and to make the advanced performance of the composite graphene modified fabric and the preparation method thereof, the finger stall and the glove of the embodiments of the present invention obviously manifest, the above technical solutions are illustrated by a plurality of examples below.

Example 1

The embodiment provides a method for preparing a high-sensitivity touch screen finger stall, which comprises the following steps:

(11) adding an N, N-dimethylformamide solvent into a reactor, sequentially adding polyether glycol and a diisocyanate compound into the reactor under the stirring condition (the mass ratio of the polyether glycol to the diisocyanate is 1:2), and reacting at the temperature of 80 ℃ for 1h to form a prepolymer;

(12) dispersing graphene oxide (SE1231) in an N, N-dimethylformamide solvent to prepare a graphene oxide dispersion liquid;

(13) standing the prepolymer, cooling to room temperature, adding the graphene oxide dispersion liquid under the stirring condition, fully and uniformly mixing, and then adding a chain extender and a terminator to perform chain extension reaction and chain termination reaction to prepare a graphene oxide modified spandex polymerization liquid;

(14) curing the prepared graphene oxide modified spandex polymerization solution at the temperature of 45 ℃, and preparing the graphene oxide modified spandex with the addition of 0.2 wt% of graphene oxide by virtue of a dry spinning system.

(15) Mixing polyamide fiber and graphene oxide dispersion liquid to obtain graphene oxide modified polyamide mixed liquid; adding the graphene oxide modified nylon mixed solution into a double-screw extruder, fully mixing and carrying out melt extrusion, wherein the processing temperature of the double-screw extruder is 260 ℃ in a first area, 280 ℃ in a second area, 280 ℃ in a third area, 280 ℃ in a fourth area, 260 ℃ in a fifth area, 260 ℃ in a sixth area and 260 ℃ in a die head, so as to obtain graphene oxide modified nylon with the graphene oxide addition amount of 0.1 wt%;

(16) blending the obtained graphene oxide modified chinlon and the graphene oxide modified spandex according to the mass ratio of 4:1 to obtain the finger stall.

Example 2

The embodiment is basically the same as embodiment 1, except that the addition amount of graphene oxide in the graphene oxide modified spandex is 0.3 wt%, and the addition amount of graphene oxide in the graphene oxide modified nylon is 0.2 wt%.

Example 3

The embodiment is basically the same as embodiment 1, except that the addition amount of graphene oxide in the graphene oxide modified spandex is 0.4 wt%, and the addition amount of graphene oxide in the graphene oxide modified nylon is 0.4 wt%.

Example 4

The embodiment is basically the same as embodiment 1, except that the addition amount of graphene oxide in the graphene oxide modified spandex is 0.5 wt%, and the addition amount of graphene oxide in the graphene oxide modified nylon is 0.5 wt%.

Example 5

The embodiment is basically the same as embodiment 1, except that the addition amount of graphene oxide in the graphene oxide modified spandex is 1 wt%, and the addition amount of graphene oxide in the graphene oxide modified nylon is 1 wt%.

Example 6

The embodiment is basically the same as the embodiment 5, except that the graphene oxide modified chinlon and the graphene oxide modified spandex are blended according to the mass ratio of 7: 1.

Example 7

The embodiment is basically the same as the embodiment 5, except that the graphene oxide modified chinlon and the graphene oxide modified spandex are blended according to the mass ratio of 9: 1.

Example 8

The embodiment is basically the same as the embodiment 5, except that the graphene oxide modified chinlon and the graphene oxide modified spandex are blended according to the mass ratio of 7: 3.

Example 9

The embodiment is basically the same as the embodiment 5, except that the graphene oxide modified chinlon and the graphene oxide modified spandex are blended according to the mass ratio of 3: 1.

Comparative example 1

This comparative example is substantially the same as example 1 except that ordinary spandex is substituted for graphene oxide-modified spandex.

Comparative example 2

This comparative example is substantially the same as example 2, except that ordinary spandex is substituted for graphene oxide-modified spandex.

Comparative example 3

This comparative example is substantially the same as example 3, except that ordinary spandex is substituted for graphene oxide modified spandex.

Comparative example 4

This comparative example is substantially the same as example 4, except that ordinary spandex is substituted for graphene oxide-modified spandex.

Comparative example 5

This comparative example is substantially the same as example 5 except that ordinary spandex is substituted for graphene oxide-modified spandex.

Comparative example 6

The comparative example is basically the same as the example 1, except that the common chinlon is used for replacing the graphene oxide modified chinlon.

Comparative example 7

The comparative example is basically the same as the example 2, except that the common chinlon is used for replacing the graphene oxide modified chinlon.

Comparative example 8

The comparative example is basically the same as the example 3, except that the common chinlon is used for replacing the graphene oxide modified chinlon.

Comparative example 9

The comparative example is basically the same as the example 4, except that the common chinlon is used for replacing the graphene oxide modified chinlon.

Comparative example 10

The comparative example is basically the same as the example 5, except that the common chinlon is used for replacing the graphene oxide modified chinlon.

Comparative example 11

The comparative example provides a preparation method of a touch screen finger stall, which is prepared by blending chinlon and spandex according to the mass ratio of 4: 1.

Comparative example 12

A commercially available common carbon fiber finger glove.

Comparative example 13

A commercial plain silver fiber finger glove.

Comparative example 14

The comparative example is basically the same as the example 4, except that the graphene oxide modified polyamide fiber and the graphene oxide modified spandex are blended according to the mass ratio of 2: 1.

Comparative example 15

The comparative example is basically the same as the example 4, except that the graphene oxide modified polyamide fiber and the graphene oxide modified spandex are blended according to the mass ratio of 9.5: 1.

Comparative example 16

The comparative example is basically the same as the example 1, except that the content of the graphene oxide in the graphene oxide modified spandex and the graphene oxide modified chinlon is 0.1 wt%.

Experimental example 1

The finger sleeves of examples 1-9 and comparative examples 1-16 were tested for conductive properties and the results are shown in table 1.

TABLE 1 surface resistance results for finger sleeves obtained in examples 1-9 and comparative examples 1-16

As can be seen from table 1, in the finger cots prepared in embodiments 1 to 9 of the present invention, as the amount of graphene used increases, the surface resistance of the finger cots is significantly reduced; the finger stalls obtained in the comparative examples 1-15 also have high correlation with the addition of graphene, wherein the surface resistance of the finger stalls modified by graphene on chinlon/spandex is higher than that of the finger stalls modified by graphene on the whole (equivalent).

Experimental example 2

The finger stalls obtained in examples 1-9 and comparative examples 1-16 were subjected to 10 minutes and 8000 clicks of a robot arm, 10000 times of stretch kneading tests (test method: gripping both sides of the finger stall/glove with a robot arm, performing 1.3 times of reciprocating stretching, observing the state of drawing and recovery, total stretching times being 10000 times), and 10 hours of sliding screen wearing tests, and the results are shown in table 2.

TABLE 2 results of performance tests on finger cots obtained in examples 1-9 and comparative examples 1-16

As can be seen from the table 2, the touch screen sensitivity of the finger stall can be effectively improved by carrying out mixed spinning treatment on the graphene oxide modified polyamide fiber and the graphene oxide modified spandex according to the weight ratio of (7-9) to (1-3), and the finger stall is free from sultriness in the wearing process and has stronger tensile resistance.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.