阅读说明：本技术 一种抗静电dty丝及其制备工艺 (Antistatic DTY (draw textured yarn) and preparation process thereof ) 是由 林传付 王旺 方友忠 林玉明 于 2021-06-17 设计创作，主要内容包括：本申请涉及DTY丝的领域,具体公开一种抗静电DTY丝及其制备工艺。一种抗静电DTY丝的原料包括聚己内酰胺切片100-120份、除水剂3-5份、抗静电剂0.5-2份、消泡剂0.3-0.4份；其中,所述抗静电剂包括以下重量百分比的组分：高碳醇聚氧乙烯醚磷酸酯钾盐30-40%、异构醇聚氧乙烯醚磷酸酯钾盐20-30%、多孔碳纳米管30-45%。抗静电DTY丝的制备方法为：S1：按比例将聚己内酰胺去切片、除水剂、抗静电剂、消泡剂搅拌混合均匀,得到混合料；S2：将混合料进行熔融纺丝,得到粗丝；S3：将粗丝用辅助油剂进行上油处理,并干燥；本申请具有提高DTY丝线抗静电能力的持久性以及抗静电能力的优点。(The application relates to the field of DTY (draw textured yarn), and particularly discloses an antistatic DTY and a preparation process thereof. The antistatic DTY yarn is prepared with polycaprolactam slice 100-120 weight portions, water eliminating agent 3-5 weight portions, antistatic agent 0.5-2 weight portions and defoaming agent 0.3-0.4 weight portions; wherein, the antistatic agent comprises the following components in percentage by weight: 30-40% of high-carbon alcohol polyoxyethylene ether phosphate potassium salt, 20-30% of isomeric alcohol polyoxyethylene ether phosphate potassium salt and 30-45% of porous carbon nano tube. The preparation method of the antistatic DTY comprises the following steps: s1: uniformly stirring and mixing the polycaprolactam slices, the water removing agent, the antistatic agent and the defoaming agent according to the proportion to obtain a mixture; s2: carrying out melt spinning on the mixture to obtain coarse filaments; s3: oiling the thick silk with an auxiliary oiling agent, and drying; the antistatic property of the DTY silk thread has the advantages of improving the durability of the antistatic property of the DTY silk thread and improving the antistatic property of the DTY silk thread.)

1. The antistatic DTY is characterized by being prepared from the following raw materials in parts by weight:

wherein, the antistatic agent comprises the following components in percentage by weight:

30-40% of high-alcohol polyoxyethylene ether phosphate potassium salt;

20-30% of isomeric alcohol polyoxyethylene ether phosphate potassium salt;

30-45% of porous carbon nanotube.

2. An antistatic DTY yarn as claimed in claim 1, wherein: the length of the porous carbon nano tube is selected from 100-1000nm, and the tube diameter is 5-20 nm.

3. An antistatic DTY yarn as claimed in claim 1, wherein: the method comprises the following steps of pretreating the porous carbon nanotube before the porous carbon nanotube is used as a raw material to prepare the antistatic DTY, wherein the pretreatment comprises the following steps:

step 1: adding the porous carbon nanotube into mixed acid formed by mixing concentrated nitric acid and concentrated sulfuric acid in a mass ratio of 1: 1, carrying out ultrasonic treatment, and filtering to obtain a rough pretreated porous carbon nanotube;

step 2: and rinsing the rough pretreated porous carbon nanotube with deionized water until the eluent is neutral, and drying the porous carbon nanotube to obtain the pretreated porous carbon nanotube.

4. An antistatic DTY yarn as claimed in claim 3, wherein: carrying out modification treatment on the pretreated porous carbon nanotube, wherein the modification treatment comprises the following steps:

step 1: carrying out polypyrrole grafting reaction on the pretreated porous carbon nanotube;

step 2: and (3) carrying out coordination reaction on the porous carbon nanotube subjected to polypyrrole grafting treatment by using organic acid.

5. An antistatic DTY yarn as claimed in claim 4, wherein: the organic acid adopted in the modification process of the porous carbon nanotube is selected from erucic acid.

6. The process for preparing an antistatic DTY yarn as claimed in any one of claims 1 to 5, wherein: the method comprises the following steps:

s1: uniformly stirring and mixing the polycaprolactam slices, the water removing agent, the antistatic agent and the defoaming agent according to the proportion to obtain a mixture;

s2: carrying out melt spinning on the mixture to obtain coarse filaments;

s3: oiling the thick silk with an auxiliary oiling agent, and drying;

the auxiliary oil agent comprises the following components in parts by weight:

7. the process for preparing antistatic DTY of claim 6, wherein the step of preparing the antistatic DTY comprises the following steps: the auxiliary oil agent is also added with microcapsules with the weight parts of 3-6, the wall material of the microcapsules adopts polyvinyl alcohol, and the core material adopts butyl stearate.

8. The process for preparing antistatic DTY of claim 6, wherein the step of preparing the antistatic DTY comprises the following steps: the core material of the microcapsule is also added with other auxiliary agents, and the other auxiliary agents are selected from one or more of sweet wormwood oil, rose essence and lavender essence.

Technical Field

The application relates to the field of DTY (draw textured yarn), in particular to an antistatic DTY and a preparation process thereof.

Background

The DTY yarn is also called draw textured yarn, which is a finished yarn that is drawn continuously or simultaneously on a texturing machine and textured by a twister. Usually, the raw material of the DTY is artificial fiber such as nylon or terylene. DTY filaments are ideal materials for various knitting or weaving processes.

At present, because artificial fiber materials such as chinlon and terylene have high insulation resistance, DTY (draw textured yarn) yarn materials prepared from the fiber materials are easy to generate static electricity during friction, and the static electricity is easy to leak, so that the problems of end breakage, flying adhesion and the like in the yarn processing process are caused, and the yield is greatly reduced. And the human body condition can also be problematic in a long-term, static environment. The concentrated discharge of static electricity also causes the danger of combustion and explosion. Therefore, an antistatic material is usually added to the raw material of the yarn or an antistatic finish is added to the yarn during the processing of the yarn, thereby improving the antistatic performance of the yarn. The antistatic principle of the traditional antistatic agent is as follows: because the relative molecular mass of traditional antistatic agent is lower, can make antistatic agent constantly migrate from inside in the use of silk thread through surface treatment or the mode of adding into the silk thread raw materials, absorb the moisture in the air through antistatic agent tip hydrophilic group, dredge static charge to play the effect that reduces surface resistance.

In view of the above-mentioned related art, the inventors believe that the conventional antistatic agent reduces the electrostatic effect by means of continuous migration to the surface, so that the antistatic property of the yarn gradually disappears and the durability is to be improved during daily use and washing.

Disclosure of Invention

In order to improve the durability of the antistatic capacity of the DTY silk yarn, the application provides the antistatic DTY silk yarn and a preparation process thereof.

The antistatic DTY is prepared from the following raw materials in parts by weight:

wherein, the antistatic agent comprises the following components in percentage by weight:

30-40% of high-alcohol polyoxyethylene ether phosphate potassium salt;

20-30% of isomeric alcohol polyoxyethylene ether phosphate potassium salt;

30-45% of porous carbon nanotube.

By adopting the technical scheme, the antistatic agent is obtained by compounding the high-carbon alcohol polyoxyethylene ether phosphate potassium salt, the isomeric alcohol polyoxyethylene ether phosphate potassium salt and the porous carbon nanotube, and the high-carbon alcohol polyoxyethylene ether phosphate potassium salt and the isomeric alcohol polyoxyethylene ether phosphate potassium salt can generate a synergistic effect with the porous carbon nanotube, so that the antistatic effect of the prepared silk thread is improved, and the durability of the antistatic effect is enhanced. The existing synergistic principle is that the porous carbon nanotube can absorb high-carbon alcohol polyoxyethylene ether phosphate potassium salt and isomeric alcohol polyoxyethylene ether phosphate potassium salt, the absorption effect improves the tightness of the connection between the high-carbon alcohol polyoxyethylene ether phosphate potassium salt and the isomeric alcohol polyoxyethylene ether phosphate potassium salt, so that static electricity generated on the silk thread is neutralized more easily and quickly, and the migration effect of the high-carbon alcohol polyoxyethylene ether phosphate potassium salt and the isomeric alcohol polyoxyethylene ether phosphate potassium salt is reduced, so that the durability of the antistatic capacity of the silk thread is improved.

Preferably, the length of the porous carbon nanotube is selected from 100-1000nm, and the tube diameter is 5-20 nm.

By adopting the technical scheme, the length of the porous carbon nanotube is selected to be between 100-1000nm, so that the carbon nanotube can be dispersed in the matrix more uniformly while the matrix is kept to have certain strength. Too long a length of the carbon nanotubes may result in too strong a matrix, the prepared filaments may be easily broken, while too short a length of the carbon nanotubes may result in a greater amount of carbon nanotubes needed to form the conductive network pathways in the matrix.

Preferably, the porous carbon nanotube is pretreated before being used as a raw material to prepare the antistatic DTY, and the pretreatment comprises the following steps:

step 1: adding the porous carbon nanotube into mixed acid formed by mixing concentrated nitric acid and concentrated sulfuric acid in a mass ratio of 1: 1, carrying out ultrasonic treatment, and filtering to obtain a rough pretreated porous carbon nanotube;

step 2: and rinsing the rough pretreated porous carbon nanotube with deionized water until the eluent is neutral, and drying the porous carbon nanotube to obtain the pretreated porous carbon nanotube.

By adopting the technical scheme, after the porous carbon nanotube is treated by the mixed acid solution of concentrated nitric acid and concentrated sulfuric acid, the surface of the porous carbon nanotube is corroded to form more pits or holes, the specific surface area of the porous carbon nanotube is increased, the adsorption effect of the porous carbon nanotube on high-carbon alcohol polyoxyethylene ether phosphate potassium salt and isomeric alcohol polyoxyethylene ether phosphate potassium salt is improved, a better conductive network is formed in the matrix, and the antistatic performance of the silk thread is further improved.

Preferably, the porous carbon nanotube after pretreatment is subjected to modification treatment, and the modification treatment comprises the following steps:

step 1: carrying out polypyrrole grafting reaction on the pretreated porous carbon nanotube;

step 2: and (3) carrying out coordination reaction on the porous carbon nanotube subjected to polypyrrole grafting treatment by using organic acid.

By adopting the technical scheme, after the modified surface of the porous carbon nanotube is grafted by polypyrrole and subjected to coordination reaction between organic acid and amino in the polypyrrole, the surface of the porous carbon nanotube is modified, so that the self-agglomeration effect of the porous carbon nanotube is reduced. And the modified porous carbon nanotube and the matrix can form a good interface structure, so that the dispersibility of the porous carbon nanotube in the matrix is improved.

Preferably, the organic acid adopted in the modification process of the porous carbon nanotube is erucic acid.

By adopting the technical scheme, erucic acid is used as organic acid to perform coordination reaction with amino in polypyrrole to form erucic amide, and the erucic amide can effectively improve the dispersion degree of the porous carbon nanotube in the matrix. And secondly, the erucamide can also ensure that the lubricating property of the modified porous carbon nanotube on the surface of the silk thread is improved to a certain extent. The improved lubrication performance of the yarn can reduce the frictional resistance between the yarn and the equipment used in the textile production process, thereby reducing the possibility of generating static electricity to a certain extent.

In a second aspect, the application provides a preparation process of an antistatic DTY, which adopts the following technical scheme:

a preparation process of antistatic DTY comprises the following steps:

s1: uniformly stirring and mixing the polycaprolactam slices, the water removing agent, the antistatic agent and the defoaming agent according to the proportion to obtain a mixture;

s2: carrying out melt spinning on the mixture to obtain coarse filaments;

s3: oiling the thick silk with an auxiliary oiling agent, and drying;

the auxiliary oil agent comprises the following components in parts by weight:

by adopting the technical scheme, after the auxiliary oiling agent is used for oiling the thick silk after extrusion molding, a functional coating can be formed on the surface of the thick silk, the smoothness of the silk can be improved by the functional coating, the silk can be well protected, and the antistatic capacity and the corrosion resistance of the silk are improved to a certain extent.

Preferably, the auxiliary oil agent is further added with 3-6 parts by weight of microcapsules, the wall material of the microcapsules is polyvinyl alcohol, and the core material of the microcapsules is butyl stearate.

Through adopting above-mentioned technical scheme, microcapsule homodisperse is in supplementary finish, and supplementary finish coats on the silk thread surface, and when the silk thread was handling, core butyl stearate in the microcapsule has through the phase transition absorption with the effect of release energy to make the silk thread can not descend too fast after the thermal treatment, avoid the temperature to descend too fast and make silk thread toughness variation, and avoid toughness variation and the frictional static phenomenon that arouses to produce.

Preferably, the core material of the microcapsule is further added with other auxiliary agents, and the other auxiliary agents are selected from one or more of sweet wormwood oil, rose essence and lavender essence.

By adopting the technical scheme, after the sweet wormwood oil, the rose essence and the lavender essence are doped into the microcapsules, the silk threads can enable the cloth to have certain functionality after being woven into the cloth, the sweet wormwood oil has the effect of improving the antibacterial and mosquito-repellent effects of the cloth, the rose essence and the lavender essence can also improve the fragrance of the cloth, and the rose essence and the lavender essence cannot be quickly dissipated due to the slow release effect, so that the fragrance can be reserved for a long time.

In summary, the present application has the following beneficial effects:

1. this application adopts porous carbon nanotube and the raw materials of polymer antistatic agent component mixture conduct silk thread, through porous carbon nanotube's adsorption, reduces antistatic effective constituent's migration, improves the antistatic persistence of silk thread.

2. The porous carbon nanotube is preferably subjected to pretreatment and modification treatment, so that the adsorption effect of the porous carbon nanotube on a high-molecular antistatic agent and the dispersion capacity of the porous carbon nanotube are improved, and the antistatic performance of the silk thread and the durability of the antistatic performance are improved.

3. According to the method for preparing the silk thread, the functionality and the lubricating property of the silk thread are improved in a mode of adding the auxiliary oil agent and the microcapsule.

Detailed Description

The present application will be described in further detail with reference to examples.

The starting materials used in the examples are all commercially available. Wherein the water removing agent is ALT-201 produced by Anxiang Airit chemical Co., Ltd, and the defoaming agent is polydimethylsiloxane. The amounts of the respective raw materials used in the examples are shown in Table 2.

Except for specific description, in the following examples, the length of the carbon nanotube is selected from 100-1000nm, and the tube diameter is 5-20 nm.

Preparation examples of raw materials

Preparation example 1

As shown in Table 1, the main difference between the preparation examples 1 to 3 is that the raw material ratios of the auxiliary oil agents are different. Except for special instructions, the microcapsule adopts polyvinyl alcohol as a wall material and butyl stearate as a core material.

Hereinafter, preparation example 1 will be described, in which dimethylpropane carboxylate is used as the dicarboxylic acid ester, polyoxyethylene laurate is used as the polyoxyethylene fatty acid ester, and octadecyl sulfate is used as the alkyl sulfate ester.

The preparation method of the auxiliary oil agent provided in preparation example 1 was as follows:

the dicarboxylic ester, the polyoxyethylene fatty acid ester, the alkyl sulfate and the polyisobutylene bis-succinimide are stirred and mixed for 20min at the stirring speed of 100r/min according to the proportion in the table 1, so that the auxiliary oil agent can be obtained.

TABLE 1 content of each component in the auxiliary oil

Preparation example 4

Unlike preparation example 3, microcapsules were added to the raw material of preparation example 4.

Preparation example 5

Unlike preparation example 3, the amount of the microcapsule used was increased.

Preparation example 6

Unlike preparation example 3, the amount of the microcapsule was increased and was larger than that of preparation example 5.

Preparation example 7

Different from the preparation example 6, the core material of the microcapsule is further added with the artemisia oil accounting for 5% of the mass of the butyl stearate.

Preparation example 8

Different from the preparation example 6, the core material of the microcapsule is also added with the sweet wormwood oil accounting for 2 percent of the mass of the butyl stearate and the rose essence accounting for 3 percent of the mass of the butyl stearate.

Preparation example 9

Different from the preparation example 6, the core material of the microcapsule is also added with 2% by mass of rose essence and 3% by mass of lavender essence of butyl stearate.

Preparation example 10

Different from the preparation example 6, the core material of the microcapsule is also added with 1% by mass of rose essence, 2% by mass of butyl stearate of lavender essence and 3% by mass of butyl stearate of lavender essence.

Preparation example 11

The porous carbon nanotube is pretreated by the following steps:

step 1: adding a porous carbon nanotube into mixed acid formed by mixing concentrated nitric acid and concentrated sulfuric acid in a mass ratio of 1: 1, wherein the ratio of the porous carbon nanotube to the mixed acid is 1: 10, and filtering after carrying out ultrasonic treatment for 40min to obtain a rough pretreated porous carbon nanotube;

step 2: rinsing the rough pretreated porous carbon nanotube with deionized water until eluent is neutral, and drying the porous carbon nanotube for 1h at 50 ℃ to obtain the pretreated porous carbon nanotube.

Preparation example 12

Different from the preparation example 11, the pretreated porous carbon nanotube is further subjected to modification treatment, and the modification treatment comprises the following steps:

step 1: and (3) carrying out polypyrrole grafting reaction on the pretreated porous carbon nanotube, and taking pyrrole, silver nitrate and the pretreated carbon nanotube for later use according to the weight ratio of 1: 5. Then sodium dodecyl benzene sulfonate, xylene and deionized water are mixed according to the weight ratio of 2: 1: 50, the stirring speed is 100r/min, and the stirring time is 10min to obtain a stirring liquid. And then adding the pretreated carbon nano tube into the stirring liquid, carrying out ultrasonic dispersion for 30min, and then placing in an ice water bath for 0.5 h. Pyrrole and silver nitrate were then added and stirred at a stirring speed of 50r/min for 24 h. Washing the reacted mixture with ethanol and deionized water for three times in sequence to obtain the porous carbon nanotube grafted with polypyrrole;

step 2: carrying out coordination reaction on the porous carbon nanotube subjected to polypyrrole grafting treatment by using organic acid; firstly, stirring and mixing N-methyl pyrrolidone and erucic acid with the mass ratio of 10: 1 for 30min at the stirring speed of 100r/min to obtain coordination liquid. And then stirring and reacting the porous carbon nanotube grafted with the polypyrrole and the coordination liquid at room temperature at a stirring speed of 50r/min according to a weight ratio of 1: 10 for 24 hours. And finally, washing the mixture obtained by filtering with N-methyl pyrrolidone, acetone and deionized water for three times respectively, and after washing, placing the mixture in a vacuum oven at 60 ℃ for drying for 24 hours to obtain the modified porous carbon nanotube.

Preparation example 13

Unlike preparation 12, the erucic acid in modification treatment step 2 was replaced with phthalic acid.

Examples

Examples 1 to 14

As shown in table 2, the main difference between examples 1 to 14 is the difference in the raw material ratio of the antistatic DTY yarn.

In the following, example 1 is given as an example, wherein potassium octyldecanol polyoxyethylene ether phosphate is used as the potassium isoalcohol polyoxyethylene ether phosphate, and potassium tridecanol polyoxyethylene ether phosphate is used as the potassium isoalcohol polyoxyethylene ether phosphate.

The preparation method of the antistatic DTY yarn provided in example 1 is as follows:

s1: the polycaprolactam is sliced off, the water removing agent, the antistatic agent and the defoaming agent are stirred and mixed for 20min at the stirring speed of 150r/min according to the proportion to obtain a mixture;

s2: putting the obtained mixture into a screw extruder, and carrying out fusion treatment through four processing areas, wherein the first processing area is a heating area and the temperature is 240 ℃; the second processing area is a heat preservation pressurizing area, the temperature is 210 ℃, and the pressure is 1100N; the third processing area is a heating area, and the temperature is 250 ℃; the fourth processing area is a heat-preserving pressurizing area, the temperature is 220 ℃, and the pressure is 1200N, so that the raw materials are molten. The melted raw materials enter a spinning box body after passing through a filter, are extruded from the fine holes of a spinneret plate, and are cooled by air to obtain coarse yarns;

s3: the thick silk is oiled by an oiling roller, the oiled silk is firstly wound on a bobbin, and then is wound on a silk tube by a hot roller with the temperature of 50 ℃, so that the antistatic DTY silk is obtained. The oil used for oiling was the auxiliary oil prepared in preparation example 1.

TABLE 2 antistatic DTY yarn materials

Example 15

In contrast to example 9, the porous carbon nanotube used in preparation example 11 was pretreated.

Example 16

In contrast to example 9, the porous carbon nanotube used in preparation example 12 was modified.

Example 17

In contrast to example 9, the porous carbon nanotube after the modification treatment in preparation example 13 was used.

Example 18

The auxiliary oil agent used in preparation example 2 was different from that used in example 9.

Example 19

The auxiliary oil agent used in preparation example 3 was different from that used in example 9.

Example 20

The auxiliary oil agent used in preparation example 4 was different from that used in example 9.

Example 21

The auxiliary oil agent used in preparation example 5 was different from that used in example 9.

Example 22

The auxiliary oil agent used in preparation example 6 was different from that used in example 9.

Example 23

The auxiliary oil agent used in preparation example 7 was different from that used in example 9.

Example 24

The auxiliary oil agent used in preparation example 8 was different from that used in example 9.

Example 25

The auxiliary oil agent used in preparation example 9 was different from that used in example 9.

Example 26

The auxiliary oil agent used in preparation example 10 was different from that used in example 9.

Example 27

Different from the embodiment 9, the tube diameter of the porous carbon nanotube is 1200-1500 nm.

Example 28

Different from the embodiment 9, the tube diameter of the porous carbon nanotube is 50 to 80 nm.

Example 29

Unlike example 9, the tube diameter of the porous carbon nanotube was 30 to 40 nm.

Example 30

Unlike example 9, the tube diameter of the porous carbon nanotube was 2 to 3 nm.

Comparative example

Comparative example 1

Unlike example 9, the porous carbon nanotubes in the antistatic agent were replaced with carbon nanotubes.

Comparative example 2

Unlike example 9, the antistatic agent used was MOA-9PK antistatic agent, a type produced by Haian petrochemical plant of Jiangsu province.

Performance test

Antistatic testing

Sample treatment: and (3) rinsing the sample by using deionized water for 300 times, wherein the rinsing time is 5 minutes each time, and after rinsing is finished, drying the sample in an oven at the temperature of 50 ℃ for 0.5 hour for later use.

The detection method comprises the following steps of FZ/T50035-2016 resistance test method for synthetic fiber filaments. A section of 100mm long fiber is taken, conductive adhesive is adhered to two ends of the fiber, an EST121 type digital ultra-high resistance micro-current instrument is adopted to test the resistance value of the fiber at a distance of 100mm, the test voltage is (100 +/-5) V, the average value is obtained after 5 times of measurement, and the volume specific resistance of the fiber is calculated.

TABLE 3 antistatic test results

Coefficient of friction test

The coefficient of friction was measured using a Y151 type yarn friction coefficient measuring instrument from the second textile machinery factory, yozhou. The testing speed of the friction coefficient tester is set to be 30 r/min, the wrap angle is set to be 180 degrees, and the dynamic friction coefficient of the fiber is tested.

The dynamic friction coefficient was measured as follows:

and (3) taking a stainless steel roller as a roller core, and manufacturing the fiber sample obtained in the step (2) into a fiber roller to finish the work to be detected.

And starting the friction coefficient meter to enable the fiber roller to rotate at the speed of 30 rpm, slowly rotating the balance handle until the torque balance pointer returns to the zero position or enabling the torque balance pointer to swing in equal amplitude on two sides of the center of the balance point, and recording the reading on the torque balance at the moment. This was repeated 3 times per fiber and the average was recorded. Each fiber roller measures 6 fibers and obtains the friction value between the 6 fibers and the fibers on the surface of the fiber roller. The average value of the five fiber rolls is found in a table.

TABLE 4 dynamic Friction coefficient test results

Examples	Coefficient of dynamic friction
		Example 9	0.451
Example 16	0.241
		Example 17	0.457
Example 19	0.342
		Example 20	0.287
Example 21	0.223
		Example 22	0.212
Example 23	0.231
		Example 24	0.221
Example 25	0.226
		Comparative example 1	0.513
Comparative example 2	0.467

It can be seen from the combination of examples 1 to 14 and from Table 3 that the content of the antistatic agent component affects the final antistatic ability of the yarn, and that the antistatic ability and antistatic durability of the yarn are best when the antistatic agent content is formulated at the ratio of example 9.

In combination with examples 9, 15, 16, and 17 and table 3, it can be seen that the porous carbon nanotubes as the component in the antistatic agent have a certain effect on the improvement of the antistatic ability of the yarn after the pretreatment and modification treatment.

As can be seen by combining examples 1-26 and comparative examples 1-2 with Table 3, the antistatic agent used in the present application has better durability, and the porous carbon nanotubes have a greater influence on the durability of the antistatic agent.

In combination with examples 9 and 27-30 and table 3, it can be seen that the length and the tube diameter of the porous carbon nanotube have a certain influence on the dispersion of the porous carbon nanotube in the matrix, and the too long or too short length and the too thick or too thin tube diameter of the carbon nanotube can cause the porous carbon nanotube to form the conductive effect of the conductive network path in the matrix.

It can be seen from the combination of examples 9, 16 and 17 and table 4 that the use of erucic acid for modification in the process of modifying the porous carbon nanotubes can improve the dispersibility of the porous carbon nanotubes and also can improve the lubricity of the filaments, while the use of common organic acids, such as phthalic acid, can only improve the dispersibility of the porous carbon nanotubes.

It can be seen from the combination of examples 9 and 19 to 25 and comparative examples 1 to 2 and table 4 that after the microcapsule is added to the auxiliary oiling agent, the lubricating property of the yarn can be improved to a certain extent, and the possible principle is that the temperature change of the yarn is more gradual during extrusion cooling due to the phase change of the microcapsule, so that the yarn is softer and smoother.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.