阅读说明：本技术 织物 (Fabric ) 是由 曾胜茂 魏麒书 于 2019-09-20 设计创作，主要内容包括：本发明提供一种织物,包括基布以及涂层。涂层配置于基布上,其中涂层包括树脂基质以及温度调节粉末,其中基于树脂基质的含量为100重量份,温度调节粉末的含量为20重量份至80重量份,且温度调节粉末的材质包括经改质的聚苯胺。所述织物对于人体而言具有良好的温度调节性,在加工、使用时不易丧失温度调节功能,并且具有抗静电性。(The invention provides a fabric which comprises a base fabric and a coating. The coating is arranged on the base cloth, wherein the coating comprises a resin matrix and temperature adjusting powder, the content of the temperature adjusting powder is 20-80 parts by weight based on 100 parts by weight of the resin matrix, and the material of the temperature adjusting powder comprises modified polyaniline. The fabric has good temperature regulation performance for human bodies, is not easy to lose the temperature regulation function during processing and use, and has antistatic property.)

1. A fabric, comprising:

a base cloth; and

a coating disposed on the base fabric, wherein the coating comprises:

a resin matrix; and

a temperature-adjusting powder, wherein the content of the temperature-adjusting powder is 20 to 80 parts by weight based on 100 parts by weight of the resin matrix, and the material of the temperature-adjusting powder comprises modified polyaniline.

2. The fabric according to claim 1, wherein the method of preparing the modified polyaniline comprises:

mixing long-chain fatty acid, surfactant, water and aniline to form a mixed reactant;

reducing the mixed reactants from a first temperature to a second temperature; and

adding an aqueous oxidant solution to the mixed reactants at the second temperature to react to form the modified polyaniline.

3. The fabric of claim 2, wherein the long chain fatty acid has a carbon number between C8 and C26.

4. The fabric of claim 2, wherein the long chain fatty acid comprises capric acid or lauric acid, and the ratio of the weight of the long chain fatty acid to the weight of the aniline is from 1 to 9.

5. The fabric of claim 2, wherein the surfactant comprises sodium lauryl sulfate and the ratio of the weight of the surfactant to the weight of the aniline is between 0.625 and 0.83.

6. The fabric according to claim 2, wherein the oxidizing agent comprises potassium persulfate and the ratio of the weight of the oxidizing agent to the weight of the aniline is from 1.45 to 3.48.

7. The fabric according to claim 1, wherein the modified polyaniline has a melting point between 30 ℃ to 45 ℃.

8. The fabric of claim 1, wherein the modified polyaniline has a enthalpy value between 114J/g to 149J/g.

9. The fabric according to claim 1, wherein the surface resistance of the modified polyaniline is between 10⁷Omega/□ to 10⁸Omega/□.

Technical Field

The invention relates to a fabric, in particular to a temperature-regulating fabric.

Background

In recent years, the fashion trend of clothes and fabrics has shifted from appearance to performance-oriented direction, and comfort has become a common requirement when people wear clothes, for example, the clothes worn during sports are generally characterized by air permeability and perspiration; or under the condition of severe climate/temperature change (such as difference of indoor and outdoor temperature in winter, change of environmental temperature and humidity, metabolic difference of severe exercise and rest state of human body and the like), the temperature regulation performance of the worn clothes is studied. Therefore, the development of functional textiles with a self-regulating temperature function has become an objective of the present skilled person.

Disclosure of Invention

In view of the above, the present invention provides a fabric having good temperature-adjusting properties for human body, not easily losing temperature-adjusting function during processing and use, and having antistatic properties.

The fabric of the present invention comprises a base fabric and a coating. The coating is arranged on the base cloth, wherein the coating comprises a resin matrix and temperature adjusting powder, the content of the temperature adjusting powder is 20-80 parts by weight based on 100 parts by weight of the resin matrix, and the material of the temperature adjusting powder comprises modified polyaniline.

In an embodiment of the present invention, the method for preparing the modified polyaniline includes the following steps. A long chain fatty acid, a surfactant, water, and aniline are mixed to form a mixed reactant. The mixed reactants are reduced from a first temperature to a second temperature. And adding the oxidant aqueous solution into the mixed reactants at a second temperature to react to form the modified polyaniline.

In an embodiment of the present invention, the carbon number of the long chain fatty acid is, for example, between C8 and C26.

In an embodiment of the present invention, the long-chain fatty acid includes capric acid or lauric acid, and a ratio of the weight of the long-chain fatty acid to the weight of the aniline is, for example, between 1 and 9.

In an embodiment of the invention, the surfactant includes Sodium Dodecyl Sulfate (SDS), and a ratio of the weight of the surfactant to the weight of the aniline is, for example, between 0.625 and 0.83.

In an embodiment of the invention, the oxidizing agent includes potassium persulfate, and a ratio of the weight of the oxidizing agent to the weight of the aniline is, for example, between 1.45 and 3.48.

In an embodiment of the present invention, the modified polyaniline has a melting point between 30 ℃ and 45 ℃.

In an embodiment of the present invention, the enthalpy of the modified polyaniline is, for example, between 114J/g and 149J/g.

In an embodiment of the present invention, the surface resistance of the modified polyaniline is, for example, between 10⁷Omega/□ to 10⁸Omega/□.

In view of the above, the fabric of the present invention includes the coating layer disposed on the base fabric, the coating layer includes the resin matrix and the temperature-adjusting powder, and the material of the temperature-adjusting powder includes the modified polyaniline, thereby making the fabric have good temperature-adjusting properties for the human body, hardly losing the temperature-adjusting function during processing and use, and having antistatic properties. Therefore, the product applicability and competitiveness of the fabric are improved.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic cross-sectional view of a fabric according to an embodiment of the present invention.

The reference numbers illustrate:

10: fabric

100: base cloth

110: coating layer

P: temperature regulating powder

R: resin matrix

Detailed Description

In this context, a range denoted by "a numerical value to another numerical value" is a general expression avoiding a recitation of all numerical values in the range in the specification. Thus, recitation of a range of values herein is intended to encompass any value within the range and any smaller range defined by any value within the range, as if the range and smaller range were explicitly recited in the specification.

As used herein, "about", "approximately", "essentially", or "substantially" includes the stated value and the average value within an acceptable range of deviation of the specified value as determined by one of ordinary skill in the art, taking into account the measurement in question and the specified amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within, for example, ± 30%, ± 20%, ± 15%, ± 10%, ± 5%. Further, as used herein, "about," "approximately," "essentially," or "substantially" may be selected based on the measured property or other property to select a more acceptable range of deviation or standard deviation, and not all properties may be accommodated with one standard deviation.

In order to provide a fabric having good temperature regulation properties for the human body, hardly losing temperature regulation function during processing and use, and having antistatic properties, the present invention provides a fabric which can achieve the above advantages. The following embodiments are merely examples of the present invention which can be actually carried out.

FIG. 1 is a schematic cross-sectional view of a fabric according to an embodiment of the present invention.

Referring to fig. 1, a fabric 10 includes a base fabric 100 and a coating layer 110 disposed on the base fabric 100. In the present embodiment, the fabric 10 may be a garment, a jacket, or pants. In one embodiment, the coating 110 of the fabric 10 may be in direct contact with the skin of the user. In another embodiment, the coating 110 of the fabric 10 may be adjacent to, but not in direct contact with, the skin of the user as compared to the base fabric 100 of the fabric 10.

In the present embodiment, the base fabric 100 may be any fabric known to those skilled in the art, such as a knitted fabric, a woven fabric, or a nonwoven fabric. In this embodiment, the material of the base fabric 100 may include (but is not limited to): polyester, nylon, cotton, polypropylene, polyurethane, or combinations thereof.

In the present embodiment, the coating layer 110 includes a resin matrix R and a temperature-regulating powder P dispersed in the resin matrix R. In the present embodiment, the content of the temperature-adjusting powder P is 20 to 80 parts by weight based on 100 parts by weight of the content of the resin matrix R. If the content of the temperature-adjusting powder P is less than 20 parts by weight, the temperature-adjusting ability of the fabric 10 is not good; if the content of the temperature control powder P is more than 80 parts by weight, the film forming property of the coating layer 110 is poor, and it is difficult to uniformly arrange the coating layer on the base fabric 100.

In the present embodiment, the material of the resin matrix R may include (but is not limited to): epoxy, polyurethane, polyester, acryl, or a combination thereof.

In the present embodiment, the material of the temperature-adjusting powder P may include modified polyaniline. In detail, the modified polyaniline is polyaniline modified by long-chain fatty acid. In the present embodiment, the method for preparing the modified polyaniline may include the following steps. First, a mixed reactant is prepared: after dispersing the long chain fatty acid, surfactant in water to form a mixture, aniline is added and dispersed in the mixture to form a mixed reactant. However, the present invention is not limited thereto. In other embodiments, after the mixture is formed, the mixture may be heated prior to adding and dispersing aniline into the heated mixture to form the mixed reactants.

The carbon number of the long chain fatty acid may be between C8 and C26, preferably C10 and C12. Examples of long chain fatty acids may include (but are not limited to): caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid or cerotic acid. Examples of surfactants may include (but are not limited to): sodium Dodecyl Sulfate (SDS) or cetyltrimethylammonium bromide. The water is, for example, deionized water. The mixture may be an emulsion and the mixed reactants may be a stable emulsion.

The ratio of the weight of long chain fatty acids to the weight of aniline may for example be between 1 and 9. If the ratio of the weight of the long-chain fatty acid to the weight of the aniline is less than 1, the modification rate of the polyaniline is too low, and the effective components for temperature adjustment in the temperature adjustment powder P are insufficient; if the ratio of the weight of the long-chain fatty acid to the weight of the aniline is higher than 9, the adhesion between the base fabric 100 and the coating layer 110 is reduced due to the excess of the long-chain fatty acid. The ratio of the weight of surfactant to the weight of aniline may be, for example, between 0.625 and 0.83. If the ratio of the weight of the surfactant to the weight of the aniline is less than 0.625, the polyaniline particles may precipitate out and settle; if the ratio of the weight of the surfactant to the weight of the aniline is higher than 0.83, the adhesion between the base fabric 100 and the coating layer 110 is reduced.

The time required to form the mixture may be between about 15 minutes and about 30 minutes, and the time required to add the aniline to form the mixed reactants may be between about 30 minutes and about 120 minutes. The temperature required to form the mixed reactants may be between about 30 ℃ to about 70 ℃.

Next, the mixed reactants were cooled: the mixed reactants are reduced from a first temperature to a second temperature. The first temperature may be between about 30 ℃ and about 70 ℃, and the second temperature may be between about 5 ℃ and about 10 ℃.

Thereafter, the polymerization reaction is initiated: adding an aqueous oxidant solution to the mixed reactants at the second temperature to react to form the modified polyaniline. Examples of oxidizing agents may include (but are not limited to): potassium persulfate or ammonium persulfate. The ratio of the weight of oxidizing agent to the weight of aniline is, for example, between 1.45 and 3.48. If the ratio of the weight of the oxidizing agent to the weight of the aniline is less than 1.45, the modified polyaniline is less likely to have a high molecular weight; if the ratio of the weight of the oxidizing agent to the weight of the aniline is higher than 3.48, the conductivity of the modified polyaniline is easily reduced. The reaction time to form the modified polyaniline may be between about 8 hours to about 16 hours.

The modified polyaniline formed by the above steps can be filtered, washed and dried for subsequent applications, such as for preparing the coating layer 110.

In the present embodiment, the preparation method of the coating layer 110 may include the following steps. First, after preparing a resin solution, the temperature-adjusting powder P is mixed therewith to form a mixed solution. Then, after the mixed solution is formed on the carrier, a drying process is performed to remove the solvent and form the coating layer 110 including the resin matrix R and the temperature-adjusting powder P. The solvent used to prepare the resin solution is not particularly limited as long as it can dissolve the resin. Specifically, examples of the solvent include (but are not limited to): amide solvents such as N, N-dimethylacetamide (DMAc), N-Dimethylformamide (DMF), N' -diethylacetamide, N-methyl-2-pyrrolidone (NMP), γ -butyrolactone, and hexamethylphosphoric triamide; urea solvents such as tetramethylurea and N, N-dimethylethylurea; sulfoxide or sulfone solvents such as dimethyl sulfoxide, diphenyl sulfone and tetramethyl sulfone; halogenated alkyl solvents such as chloroform and dichloromethane; aromatic hydrocarbon solvents such as benzene and toluene; phenol solvents such as phenol and cresol; or ether solvents such as tetrahydrofuran, 1, 3-dioxolane, dimethyl ether, diethyl ether, and p-cresol methyl ether. The above solvents may be used alone or in combination of plural kinds. The method of forming the mixed solution on the support may be carried out by any coating method known to those skilled in the art, such as a blade coating method, a spin coating method, a pneumatic blade coating method, a slit coating method, a die coating method, or a roll coating method. However, the present invention is not limited thereto. In other embodiments, the method of preparing the coating 110 may include the steps of: the resin such as the aqueous polyurethane, the polyester or the acryl resin is directly mixed with the temperature-adjusting powder P, and coated on the carrier, and then the water is removed through a curing process to form the coating layer 110 including the resin matrix R and the temperature-adjusting powder P. In view of this, in one embodiment of the fabric 10, the carrier in the process of preparing the coating layer 110 is the base fabric 100. However, the method of making the fabric 10 is not so limited. In another embodiment, a method of preparing the fabric 10 may include disposing the formed coating layer 110 on the base fabric 100 in an attaching manner.

In the present embodiment, the temperature adjusting powder P belongs to a phase change material of a solid-solid transition type. That is, the temperature-adjusting powder P is in a solid state regardless of whether the temperature is lower or higher than the phase transition temperature of the temperature-adjusting powder P. From another point of view, the physical state or molecular structure of the temperature-adjusting powder P may be changed after the endothermic or exothermic reaction occurs. For example, the temperature-regulating powder P may be transformed from a first solid state to a second solid state by an endothermic or exothermic reaction, wherein the first solid state and the second solid state have different molecular arrangements, such as different crystal arrangements. In other words, the temperature-adjusting powder P absorbs or releases thermal energy by its transition between two solid states, thereby serving to store thermal energy. In this way, the fabric 10 including the temperature-adjusting powder P not only has a function of adjusting temperature, but also has no potential problem of shell material damage due to the solid state of the temperature-adjusting powder P, such as the phase-change material in the solid-liquid transition type, and the condition of losing the temperature-adjusting function due to the damage of the temperature-adjusting powder P is not easy to occur during processing and use.

In addition, polyaniline is a conjugated Conductive Polymer, i.e., an Intrinsic Conductive Polymer (ICP) with Intrinsic conductivity, so that after being modified by long-chain fatty acid, polyaniline can form holes or electron conduction carriers, thereby generating conductivity between the semiconductor and the metal conductor. As such, the fabric 10 including the temperature-adjusting powder P can have antistatic property or conductivity.

In the present embodiment, the melting point of the modified polyaniline may be, for example, between about 30 ℃ to about 45 ℃. Since the modified polyaniline has a melting point close to the body temperature, the fabric 10 including the temperature-adjusting powder P can be suitably used for the human body. In addition, in the present embodiment, the enthalpy value of the modified polyaniline may be, for example, between about 114J/g to about 149J/g. As such, the fabric 10 including the temperature-regulating powder P has good temperature-regulating properties for the human body.

In the present embodiment, the surface resistance of the modified polyaniline may be, for example, between about 10⁷Omega/□ to about 10⁸Omega/□. In this way, the fabric 10 including the temperature-adjusting powder P can have an antistatic property, satisfying the antistatic requirement.

In this embodiment, the modified polyaniline has an initial cracking temperature greater than about 130 ℃ and a maximum cracking temperature greater than 160 ℃. That is, the temperature-adjusting powder P has good heat resistance. In this way, the fabric 10 including the temperature control powder P is less likely to lose the temperature control function due to high temperature during processing and use.

It should be noted that, as described above, the fabric 10 includes the coating layer 110 disposed on the base fabric 100, the coating layer 110 includes the resin matrix R and the temperature-adjusting powder P, and the material of the temperature-adjusting powder P includes the modified polyaniline, so that the fabric 10 has good temperature-adjusting performance for the human body, is not easy to lose the temperature-adjusting function during processing and use, and has antistatic property. As such, the product applicability and competitiveness of the fabric 10 is enhanced.

Hereinafter, the features of the present invention will be described more specifically with reference to examples 1 to 3 and comparative example 1. Although the following examples are described, the materials used, the amounts and ratios thereof, the details of the treatment, the flow of the treatment, and the like may be appropriately changed without departing from the scope of the present invention. Therefore, the present invention should not be construed restrictively by the examples described below.

Example 1

4 parts by weight of lauric acid, 0.83 parts by weight of sodium lauryl sulfate and 125 parts by weight of deionized water were placed in a four-neck reactor preheated to about 60 c and continuously heated to about 60 c and stirred for about 0.5 hours to be uniformly dispersed. Next, 1 part by weight of aniline was dropped into the four-necked reactor, and the rotation speed was increased to continue stirring for about 1 to 2 hours, to form a completely emulsified mixed reactant. Subsequently, the temperature of the mixed reactants was gradually lowered to 5 ℃ and maintained at the same temperature, 2.4 parts by weight of potassium persulfate dissolved in 35 ml of deionized water was dropwise added to the mixed reactants, and polymerization was performed for about 12 hours to form the modified polyaniline of example 1. After the temperature of the reaction system is returned to room temperature, the reaction system is filtered, cleaned and dried to obtain dark green powder (i.e., the modified polyaniline of example 1).

Example 2

4 parts by weight of capric acid, 0.83 parts by weight of sodium lauryl sulfate and 125 parts by weight of deionized water were placed in a four-neck reactor preheated to about 60 ℃ and continuously heated to about 60 ℃ and stirred for about 0.5 hour to be uniformly dispersed. Next, 1 part by weight of aniline was dropped into the four-necked reactor, and the rotation speed was increased to continue stirring for about 1 to 2 hours, to form a completely emulsified mixed reactant. Subsequently, the temperature of the mixed reactants was gradually lowered to 5 ℃ and maintained at the same temperature, 2.4 parts by weight of potassium persulfate dissolved in 35 ml of deionized water was dropwise added to the mixed reactants, and polymerization was performed for about 12 hours to form the modified polyaniline of example 2. After the temperature of the reaction system is returned to room temperature, the reaction system is filtered, cleaned and dried to obtain dark green powder (i.e., the modified polyaniline of example 2).

Example 3

3 parts by weight of capric acid, 0.625 parts by weight of sodium lauryl sulfate and 125 parts by weight of deionized water were placed in a four-neck reactor preheated to about 60 ℃ and continuously heated to about 60 ℃ and stirred for about 0.5 hour to be uniformly dispersed. Next, 1 part by weight of aniline was dropped into the four-necked reactor, and the rotation speed was increased to continue stirring for about 1 to 2 hours, to form a completely emulsified mixed reactant. Subsequently, the temperature of the mixed reactants was gradually lowered to 5 ℃ and maintained at the same temperature, 2.4 parts by weight of potassium persulfate dissolved in 35 ml of deionized water was dropwise added to the mixed reactants, and polymerization was performed for about 12 hours to form the modified polyaniline of example 3. After the temperature of the reaction system is returned to room temperature, the reaction system is filtered, cleaned and dried to obtain dark green powder (i.e., the modified polyaniline of example 3).

Comparative example 1

In comparative example 1, commercially available n-octadecane (reagent grade, manufactured by Alfa Aesar) was used as it is.

The modified polyanilines of examples 1 to 3 and the n-octadecane of comparative example 1 were subjected to an initial cracking temperature (T)_i) Maximum cracking temperature (T)_d) Melting Point (T)_m) Measurement of enthalpy (Δ Hf) and surface resistivity. The description of the aforementioned measurement items is as follows, and the measurement results are shown in table 1.

<Initial cracking temperature (T)_i) Maximum cracking temperature (T)_d) Measurement of>

The modified polyaniline of examples 1 to 3 and n-octadecane of comparative example 1 were measured and the weight change of each of the modified polyaniline and n-octadecane was recorded under a nitrogen atmosphere and with a temperature rise rate set at 20 ℃/min by a thermogravimetric analyzer (model: Q50, manufactured by TA instruments), respectively, wherein the temperature measured at the time of initial weight loss of each of the modified polyaniline and n-octadecane was the initial cracking temperature (deg.c), and the temperature measured at the time of the maximum weight loss was the maximum cracking temperature (deg.c).

<Melting Point (T)_m) Measurement of>

The modified polyaniline in examples 1 to 3 and n-octadecane in comparative example 1 were measured for endothermic heat and exothermic heat under a nitrogen atmosphere and with a temperature rise rate of 10 ℃/min using a thermomechanical analyzer (model: DSC 200F 3, manufactured by Maya (Maia)) and the melting point (. degree.C.) was recorded as the peak of the melting and desorption heat.

< measurement of enthalpy value (. DELTA.Hf) >

The modified polyaniline in examples 1 to 3 and n-octadecane in comparative example 1 were each measured for enthalpy (J/g) using a thermomechanical analyzer (model: DSC 200F 3, manufactured by Maya (Maia)) under a nitrogen atmosphere and with a temperature rise rate of 10 ℃/min.

Measurement of surface resistivity

Surface resistivity (Ω/□ or Ω/cm) of the modified polyaniline of examples 1 to 3 and n-octadecane of comparative example 1 was measured using a resistivity tester (brand name TRACK, MODEL MODEL-100), respectively²). The standard of conductivity was evaluated using the rating standard specified in FTTS-FA-009; wherein, when the surface resistivity is more than 1 x 10¹²Omega/□, which represents an insulating material; when the surface resistivity is between 1X 10⁵Omega/□ and 1 x 10¹²Between Ω/□, it represents a static dissipative material (antistatic material); when the surface resistivity is less than 1 x 10⁴Ω/□ represents a conductive material, and the lower the surface resistivity, the more excellent the conductivity.

TABLE 1

	Ti(℃)	Td(℃)	Tm(℃)	ΔHf(J/g)	Surface resistivity (omega/□)
						Example 1	154.11	186.86	44.7	132.3	107～108
Example 2	134.36	164.91	30.7	148.5	107～108
						Example 3	136.36	166.43	32.0	114.0	107～108
Comparative example 1	90.36	150.62	30.7	213.7	＞1012

As can be seen from table 1 above, the modified polyanilines of examples 1 to 3 all had higher initial cracking temperatures and maximum cracking temperatures than those of n-octadecane of comparative example 1. This result shows that the modified polyaniline of the present invention has excellent heat resistance. Therefore, the fabric containing the temperature regulating powder of the invention can not lose the temperature regulating function easily due to high temperature during processing and use.

In addition, as can be seen from table 1, the modified polyaniline of examples 1-3 has a melting point of 30.7 ℃ to 44.7 ℃ and a enthalpy of 114J/g to 148.5J/g. This result shows that the modified polyaniline of the present invention has a melting point close to the body temperature and can store considerable heat energy. As such, the fabric including the temperature-adjusting powder of the present invention has good temperature-adjusting properties for the human body.

In addition, as is clear from table 1 above, the modified polyanilines of examples 1 to 3 all had antistatic properties; the n-octadecane of comparative example 1 was an insulating material.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.