Polyester low stretch yarn antistatic fabric and preparation method thereof

Abstract

The invention relates to the technical field of polyester fiber preparation, in particular to a polyester low stretch yarn antistatic fabric and a preparation method thereof.The preparation method of the polyester low stretch yarn antistatic fabric comprises the following steps that S1, a polyester mixture, polyethylene glycol and an antistatic agent are mixed and heated to 250-260 DEG C under the inert atmosphere, a reaction is conducted for 1-1.5 h under the pressure of 5-6 KPa, and then the polyester low stretch yarn antistatic fabric is obtained; carrying out heat preservation reaction for 3-4 hours under 260-265Pa, cooling and pelletizing to obtain polyester chips; and S2, drying, melt spinning, spinning and weaving the modified polyester chips in the step S1 to obtain the polyester low stretch yarn antistatic fabric. The polyester low stretch yarn antistatic fabric disclosed by the invention has good antistatic performance and washing resistance.

Description

Technical Field

[0001] This invention relates to the field of polyester fiber preparation technology, specifically to a polyester low-elasticity antistatic fabric and its preparation method. Background Technology

[0002] Polyester fiber, commonly known as polyester, is a type of synthetic fiber produced by esterification or transesterification and polycondensation of terephthalic acid and ethylene glycol. It is a high-molecular-weight compound obtained through spinning and post-treatment, and is widely used in the manufacture of clothing, home textiles, and conveyor belts. It is one of the most important synthetic fibers globally. Among them, polyester low-elasticity yarn (DTY), with its excellent elastic recovery, crispness, and abrasion resistance, has been widely used in clothing, home textiles, and decorative fabrics, becoming one of the most widely used synthetic fiber fabrics in the textile industry. Its fluffy and soft hand feel and good dyeing properties meet consumers' demands for fabric appearance and wearing comfort, occupying an important position in sportswear, shirts, curtains, and other products. However, as a typical hydrophobic synthetic fiber, polyester has a surface resistivity as high as 10¹²-10¹⁰. 4 Ω, a magnetic field, is difficult for charges to conduct and dissipate, leading to a high likelihood of static electricity buildup in fabrics during production, processing, and use. This static electricity not only causes production problems such as fiber entanglement during spinning, warp yarn pilling during weaving, and uneven coloring during dyeing and finishing, but also seriously affects the consumer experience. When worn, the fabric easily attracts dust and hair, and even underwear can experience a stinging sensation due to static discharge, especially noticeable in dry environments. With the increasing demands for functionality and comfort in textiles, solving the static electricity problem of polyester low-elasticity yarn fabrics and developing efficient and durable antistatic fabrics has become an important topic in the field of textile material modification.

[0003] Antistatic treatment of polyester fabrics mainly involves antistatic agent finishing. Cationic, anionic, or nonionic antistatic agents are attached to the fabric surface through methods such as padding, spraying, and printing. The moisture absorption properties of the antistatic agents are used to form a conductive water film, which promotes the dissipation of charge. Invention patent CN113322537B discloses a polyester low-elasticity yarn and its preparation method. The preparation method of polyester low-elasticity yarn includes the following steps: Step 1) Preparation of modified polyester chips: Step 1-1) Terephthalic acid, ethylene glycol, 1,2-pentanediol and catalyst are mixed and heated to 260-280℃ for 3-5 hours to obtain a mixture; Step 1-2) N-hydroxymethylacrylamide, 3-aminopropanesulfonic acid and pentene edanoic acid are mixed and heated to 80-120℃ for 1-2 hours to obtain a modifier; Step 1-3) The mixture and modifier are mixed and heated to 260-270℃ for polycondensation reaction, then discharged, cured and pelletized to obtain modified polyester chips; Step 2) Preparation of pre-oriented yarn; Step 3) Preparation of polyester low-elasticity yarn; Step 4) Post-treatment of polyester low-elasticity yarn. In step 4), the invention improves the spinnability of polyester low-elasticity yarn by spraying antistatic treatment liquid onto the yarn, making it less prone to static electricity after weaving and thus enhancing the comfort of the wearer. However, the antistatic liquid is easily shed due to washing and friction, causing the antistatic effect to decay rapidly, typically losing its effectiveness after 5-10 washes. Furthermore, some antistatic agents can affect the feel and breathability of the fabric, and may even cause skin allergies. Additionally, its antistatic effect is greatly affected by environmental humidity; under low humidity conditions (relative humidity below 40%), its conductivity may significantly decrease. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention provides a polyester low-elasticity yarn antistatic fabric. The polyester low-elasticity yarn antistatic fabric disclosed in this invention has excellent antistatic properties and washability.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The first aspect of this invention provides a method for preparing a polyester low-elasticity antistatic fabric, comprising the following steps: S1: Mix polyester mixture, polyethylene glycol and antistatic agent, heat to 250-260℃ under an inert atmosphere, react at 5-6KPa for 1-1.5h, then keep at 260-265Pa for 3-4h, cool and granulate to obtain modified polyester chips. S2: The modified polyester chips from step S1 are dried, melt-spun, spun and woven to obtain the polyester low-elasticity antistatic fabric.

[0006] In some embodiments of the present invention, the preparation steps of the polyester mixture are as follows: Terephthalic acid, ethylene glycol, 1,2-pentanediol and catalyst are mixed and reacted at 240-250℃ for 2-3 hours under an inert atmosphere. Modified carbon nanotubes are then added and stirred for 10-20 minutes to obtain the final product.

[0007] In some embodiments of the present invention, the mass ratio of terephthalic acid, ethylene glycol, and 1,2-pentanediol in step S1 is (10-15):(15-18):(5-10).

[0008] Preferably, the catalyst is a titanium-based catalyst, and the amount added is 10-50 ppm based on the mass of terephthalic acid.

[0009] In some embodiments of the present invention, the preparation steps of the modified carbon nanotubes in step S1 are as follows: Carboxylated carbon nanotubes, γ-glycidyl etheroxypropyltrimethoxysilane, and water were mixed, and the pH of the system was adjusted to 2-4. The mixture was heated to 70-75℃ under an inert atmosphere and reacted for 2-3 hours. After washing and drying, the modified carbon nanotubes were obtained.

[0010] In some embodiments of the present invention, the mass ratio of the carbon nanotubes to γ-glycidoxypropyltrimethoxysilane is 1:(3-6).

[0011] In some embodiments of the present invention, the amount of modified carbon nanotubes added in step S1 is 0.5-1 wt% of the total mass of terephthalic acid, ethylene glycol, and 1,2-pentanediol.

[0012] In some embodiments of the present invention, the mass ratio of polyester mixture to antistatic agent in step S1 is 1:(0.1-0.3).

[0013] In some embodiments of the present invention, the preparation steps of the antistatic agent are as follows: (1) Under an inert atmosphere, diethylaminoethyl methacrylate and hexadecane bromoacetate were added to anhydrous ethanol, followed by hydroquinone. The mixture was reacted at 75-80℃ for 10-12 h. After filtration, washing and drying, the monomer was obtained. (2) Under an inert atmosphere, the monomer and 2-mercaptoethanesulfonic acid from step (1) are added to isopropanol, and then an initiator is added. The mixture is stirred at 80-85°C for 6-7 hours. After precipitation, filtration, washing and drying, the antistatic agent is obtained.

[0014] In some embodiments of the present invention, the mass ratio of diethylaminoethyl methacrylate to hexadecane bromo in step (1) is 1:(1.8-2.2).

[0015] In some embodiments of the present invention, the mass ratio of monomer to 2-mercaptoethanesulfonic acid in step (2) is (2.5-3.0):1.

[0016] This invention prepares modified polyester chips by combining a highly efficient antistatic agent with a polyester mixture. The presence of polyethylene glycol not only increases the hygroscopicity of the modified polyester, which is beneficial to the antistatic properties of the antistatic agent, but also adds a freely movable side chain structure to the polyester. In addition, carbon nanotubes are added to synergistically improve the mechanical strength, especially the elasticity and washability, of the polyester low-elasticity yarn. The applicant also found that carbon nanotubes also increase the stability of antistatic properties by forming conductive pathways, so that the fabric woven from polyester low-elasticity yarn can maintain good antistatic properties in various environments.

[0017] Furthermore, the applicant modified the carbon nanotubes to add groups compatible with the polyester matrix, so that the carbon nanotubes are evenly "wrapped" and distributed within them. On the one hand, this reduces the adverse effects on mechanical properties caused by the carbon nanotubes becoming stress concentration points. On the other hand, in synergy with the ether bond structure, it ensures the smoothness and feel of the final fabric, making it more comfortable against the skin. Even after multiple washes, the overall performance of the final polyester low-elasticity yarn fabric will not decline.

[0018] In some embodiments of the present invention, in step S2, the drying conditions are drying at 120~140℃ for 3-6 hours.

[0019] In some embodiments of the present invention, in step S2, the extruder temperature for melt spinning is 280~320℃, and the spinning speed is 3500~4000m / min, to obtain pre-oriented yarn.

[0020] In some embodiments of the present invention, in step S2, the textile operation conditions are as follows: the pre-oriented yarn obtained by melt spinning is fed into the guide and fed into the first roller for drafting, and after drafting, it is fed into the first heating box, the temperature of which is controlled at 90~100℃. Then, it is fed into the second roller for drafting, and after drafting, it is fed into the second heating box, the temperature of which is controlled at 60~70℃. Then, it is cooled to room temperature by a cooling plate, and then false twisted by a false twister and exited from the second roller to obtain polyester low elasticity yarn.

[0021] In some embodiments of the present invention, the knitting operation conditions in step S2 are as follows: the yarn count is 40S, the yarn twist coefficient is 330, the yarn loop length is 200MM / 100 needles, and the obtained yarn is knitted into a fabric using a weft knitting circular weft double rib knitting machine, thus obtaining a polyester low elasticity antistatic fabric.

[0022] A second aspect of the present invention provides a polyester low-elasticity yarn antistatic fabric obtained by the above preparation method.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. The polyester low-elasticity yarn antistatic fabric disclosed in this invention has good antistatic properties and washability.

[0024] 2. This invention prepares modified polyester chips by mixing modified carbon nanotubes and a high-efficiency antistatic agent with polyester. Its main advantages include: improving the mechanical strength of polyester low-elasticity yarn, thereby increasing washability, increasing the stability of antistatic properties, and thus improving the washing life of polyester low-elasticity yarn fabric to meet application requirements. Detailed Implementation

[0025] The present invention will be described below with reference to specific embodiments. It should be noted that the examples and comparative examples below are for illustrative purposes only and are not intended to limit the invention. Other combinations and various modifications within the scope of the invention can be made without departing from its spirit or scope.

[0026] To facilitate the implementation of this invention by those skilled in the art, unless otherwise specified, the compounds and related reagents used can be purchased from the market, wherein: the carboxyl content of the carboxyl carbon nanotubes is 1.5%, purchased from Jiangsu Xianfeng Nanomaterials Technology Co., Ltd.; and the polyethylene glycol is PEG400.

[0027] Preparation Example 1 The preparation steps of modified carbon nanotubes are as follows: 10g of carboxylated carbon nanotubes, 50g of γ-glycidoxypropyltrimethoxysilane and 150mL of water were mixed, the pH of the system was adjusted to 3, and the mixture was heated to 72℃ for 2.5h under a nitrogen atmosphere. After washing and drying, the modified carbon nanotubes were obtained.

[0028] Preparation Example 2 The specific preparation steps for the modified carbon nanotubes are the same as in Preparation Example 1, except that the amount of γ-glycidoxypropyltrimethoxysilane added is 25g.

[0029] Preparation Example 3 The specific preparation steps for the modified carbon nanotubes are the same as in Preparation Example 1, except that γ-aminopropyltriethoxysilane is used to replace γ-glycidoxypropyltrimethoxysilane in equal amounts.

[0030] Preparation Example 4 The preparation steps of the polyester blend are as follows: Mix 120g terephthalic acid, 170g ethylene glycol, 75g 1,2-pentanediol and 0.004g tetrabutyl titanate and stir for 13 minutes. Then add 3g modified carbon nanotubes and heat to 270℃ to react for 4 hours to obtain the final product.

[0031] The modified carbon nanotubes were obtained from Preparation Example 1.

[0032] Preparation Example 5 The specific preparation steps of the polyester mixture are the same as those in Preparation Example 4, except that the amount of modified carbon nanotubes added is 0.45g.

[0033] Preparation Example 6 The specific preparation steps of the polyester mixture are the same as those in Preparation Example 4, except that the modified carbon nanotubes are obtained from Preparation Example 2.

[0034] Preparation Example 7 The specific preparation steps of the polyester mixture are the same as those in Preparation Example 4, except that the modified carbon nanotubes are obtained from Preparation Example 3.

[0035] Preparation Example 8 The specific preparation steps of the polyester mixture are the same as those in Preparation Example 4, except that the modified carbon nanotubes are replaced with carbon nanotubes in equal amounts.

[0036] Preparation Example 9 The preparation steps of the antistatic agent are as follows: (1) Under a nitrogen atmosphere, 20g of diethylaminoethyl methacrylate and 40g of hexadecane bromo were added to 500mL of anhydrous ethanol, and then 0.25g of hydroquinone was added. The mixture was reacted at 78℃ for 11h. After filtration, washing with anhydrous ethanol and drying, the monomer was obtained. (2) Under a nitrogen atmosphere, 26g of the monomer from step (1) and 10g of 2-mercaptoethanesulfonic acid were added to 200ml of LDMF, and then 0.16g of AIBN was added. The mixture was stirred at 82°C for 6.5h. After precipitation with ether, filtration, washing with ether and drying, the antistatic agent was obtained.

[0037] Preparation Example 10 The specific preparation steps for the antistatic agent are the same as in Example 9, except that bromododecane is used to replace bromohexadecane in an equal amount. Example 1 A method for preparing a polyester low-elasticity antistatic fabric includes the following steps: S1: Mix 10 kg of polyester mixture, 5 kg of polyethylene glycol and 2 kg of antistatic agent, heat to 255°C under nitrogen atmosphere, react at 5.5 kPa for 1.2 h, and then keep at 262 Pa for 3.5 h. After cooling and pelletizing, modified polyester chips are obtained. S2: The modified polyester chips from step S1 are dried, melt-spun, spun and woven to obtain polyester low-elasticity antistatic fabric.

[0038] In step S2, the extruder temperature for melt spinning is 300℃, and the spinning speed is 3700m / min, to obtain pre-oriented yarn. In step S2, the textile operation conditions are as follows: the pre-oriented yarn obtained by melt spinning is fed into the guide and fed into the first roller for drafting. After drafting, it is fed into the first hot box, where the temperature is controlled at 95°C. Then, it is fed into the second roller for drafting. After drafting, it is fed into the second hot box, where the temperature is controlled at 65°C. Then, it is cooled to room temperature by a cooling plate. Then, it is false-twisted by a false-twisting device and exited from the second roller to obtain polyester low-elasticity yarn. In step S2, the knitting conditions are as follows: the yarn count is 40S, the yarn twist coefficient is 330, the yarn loop length is 200MM / 100 stitches, and the obtained yarn is knitted into a fabric using a weft knitting circular weft double rib knitting machine to obtain polyester low elasticity antistatic fabric.

[0039] The polyester mixture was obtained from Preparation Example 4, and the antistatic agent was obtained from Preparation Example 9. Example

[0040] A method for preparing a polyester low-elasticity antistatic fabric includes the following steps: S1: Mix 10 kg of polyester mixture, 5 kg of polyethylene glycol and 1 kg of antistatic agent, heat to 255°C under nitrogen atmosphere, react at 5.5 kPa for 1.2 h, and then keep at 262 Pa for 3.5 h. After cooling and pelletizing, modified polyester chips are obtained. S2: The modified polyester chips from step S1 are dried, melt-spun, spun and woven to obtain polyester low-elasticity antistatic fabric.

[0041] In step S2, the extruder temperature for melt spinning is 300℃, and the spinning speed is 3700m / min, to obtain pre-oriented yarn. In step S2, the textile operation conditions are as follows: the pre-oriented yarn obtained by melt spinning is fed into the guide and fed into the first roller for drafting. After drafting, it is fed into the first hot box, where the temperature is controlled at 95°C. Then, it is fed into the second roller for drafting. After drafting, it is fed into the second hot box, where the temperature is controlled at 65°C. Then, it is cooled to room temperature by a cooling plate. Then, it is false-twisted by a false-twisting device and exited from the second roller to obtain polyester low-elasticity yarn. In step S2, the knitting conditions are as follows: the yarn count is 40S, the yarn twist coefficient is 330, the yarn loop length is 200MM / 100 stitches, and the obtained yarn is knitted into a fabric using a weft knitting circular weft double rib knitting machine to obtain polyester low elasticity antistatic fabric.

[0042] The polyester mixture was obtained from Preparation Example 4, and the antistatic agent was obtained from Preparation Example 9. Example

[0043] A method for preparing a polyester low-elasticity antistatic fabric includes the following steps: S1: Mix 10 kg of polyester mixture, 5 kg of polyethylene glycol and 3 kg of antistatic agent, heat to 255°C under nitrogen atmosphere, react at 5.5 kPa for 1.2 h, and then keep at 262 Pa for 3.5 h. After cooling and pelletizing, modified polyester chips are obtained. S2: The modified polyester chips from step S1 are dried, melt-spun, spun and woven to obtain polyester low-elasticity antistatic fabric.

[0044] In step S2, the extruder temperature for melt spinning is 300℃, and the spinning speed is 3700m / min, to obtain pre-oriented yarn. In step S2, the textile operation conditions are as follows: the pre-oriented yarn obtained by melt spinning is fed into the guide and fed into the first roller for drafting. After drafting, it is fed into the first hot box, where the temperature is controlled at 95°C. Then, it is fed into the second roller for drafting. After drafting, it is fed into the second hot box, where the temperature is controlled at 65°C. Then, it is cooled to room temperature by a cooling plate. Then, it is false-twisted by a false-twisting device and exited from the second roller to obtain polyester low-elasticity yarn. In step S2, the knitting conditions are as follows: the yarn count is 40S, the yarn twist coefficient is 330, the yarn loop length is 200MM / 100 stitches, and the obtained yarn is knitted into a fabric using a weft knitting circular weft double rib knitting machine to obtain polyester low elasticity antistatic fabric.

[0045] The polyester mixture was obtained from Preparation Example 4, and the antistatic agent was obtained from Preparation Example 9. Example

[0046] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the antistatic agent is obtained from Preparation Example 10. Example

[0047] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the polyester mixture is obtained from Preparation Example 5. Example

[0048] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the polyester mixture is obtained from Preparation Example 6. Example

[0049] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the polyester mixture is obtained from Preparation Example 7. Example

[0050] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the polyester mixture is obtained from Preparation Example 8. Example

[0051] A method for preparing a polyester low-elasticity antistatic fabric is described, with the specific implementation method being the same as in Example 1, except that the amount of antistatic agent added is 3.5 kg. Example

[0052] A method for preparing a polyester low-elasticity antistatic fabric, the specific implementation method is the same as in Example 1, the difference being that the antistatic agent is antistatic agent N1822.

[0053] (1) Antistatic performance test The surface resistance values ​​of the polyester low-elasticity antistatic fabrics prepared in Examples 1-9 above were measured using a PRS-801 surface resistance tester.

[0054] (2) Washability test The polyester low-elasticity antistatic fabrics prepared in Examples 1-9 above were washed according to the washing process in GB / T8629-2017 "Home Washing and Drying Procedures for Textile Testing" 4G. The specific method was as follows: 2g / L of laundry detergent, 40℃ for 3min, liquor ratio 1:30, rinsed 3 times at room temperature for 2min each time, and then the surface resistance value was measured with a PRS-801 surface resistance tester to characterize the antistatic performance after washing.

[0055] The specific test results are shown in Table 1: Table 1

[0056] As can be seen from the comparison of the experimental data of Examples 1-3 in Table 1, the polyester low-elasticity antistatic fabric obtained by the present invention has good antistatic properties and washability. Comparing Example 4 with Example 1, it can be seen that replacing hexadecane with bromododecane in an equal amount during the preparation of the antistatic agent results in higher antistatic efficiency, but it is prone to migration and precipitation due to compatibility issues, leading to rapid washing failure. Comparing Example 5 with Example 1, it can be seen that changing the amount of modified carbon nanotubes significantly reduces the surface resistivity. Comparing Example 6 with Example 1, it can be seen that changing the amount of γ-glycidyl etheroxypropyltrimethoxysilane during the preparation of modified carbon nanotubes may affect the grafting density and dispersibility of the modified carbon nanotubes, adversely affecting both antistatic and wash resistance properties. Comparing Example 7 with Example 1, it can be seen that replacing γ-glycidyl ether with γ-aminopropyltriethoxysilane in an equal amount during the preparation of modified carbon nanotubes... Oxypropyltrimethoxysilane may be affected by system compatibility, resulting in weak interfacial bonding and poor wash resistance. A comparison of Example 8 and Example 1 shows that directly replacing modified carbon nanotubes with an equal amount of carbon nanotubes leads to poor dispersibility, difficulty in forming an effective conductive network, and a lack of synergistic conductive effect, resulting in easy loss after washing and a decline in overall performance. A comparison of Example 9 and Example 1 shows that while changing the amount of antistatic agent added is beneficial for improving antistatic performance, it may affect the fabric's inherent properties, leading to insufficient washing strength. A comparison of Example 10 and Example 1 shows that replacing the antistatic agent prepared in this invention with an equal amount of commercially available antistatic agent significantly reduces its applicability in this system, particularly resulting in a substantial decrease in wash resistance.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for preparing a polyester low-elasticity antistatic fabric, characterized in that, Includes the following steps: S1: Mix polyester mixture, polyethylene glycol and antistatic agent, heat to 250-260℃ under an inert atmosphere, react at 5-6KPa for 1-1.5h, then keep reacting at 260-265Pa for 3-4h, cool and granulate to obtain polyester chips. S2: The modified polyester chips from step S1 are dried, melt-spun, spun and woven to obtain the polyester low-elasticity antistatic fabric.

2. The method for preparing the polyester low-elasticity antistatic fabric according to claim 1, characterized in that, The preparation steps of the polyester mixture are as follows: Terephthalic acid, ethylene glycol, 1,2-pentanediol and catalyst are mixed and reacted at 240-250℃ for 2-3 hours under an inert atmosphere. Modified carbon nanotubes are then added and stirred for 10-20 minutes to obtain the final product.

3. The method for preparing polyester low-elasticity antistatic fabric according to claim 2, characterized in that, The preparation steps of the modified carbon nanotubes in step S1 are as follows: Carboxylated carbon nanotubes, γ-glycidyl etheroxypropyltrimethoxysilane, and water were mixed, and the pH of the system was adjusted to 2-4. The mixture was heated to 70-75℃ under an inert atmosphere and reacted for 2-3 hours. After washing and drying, the modified carbon nanotubes were obtained.

4. The method for preparing the polyester low-elasticity antistatic fabric according to claim 2, characterized in that, In step S1, the amount of modified carbon nanotubes added is 0.5-1 wt% of the total mass of terephthalic acid, ethylene glycol, and 1,2-pentanediol.

5. The method for preparing the polyester low-elasticity antistatic fabric according to claim 1, characterized in that, In step S1, the mass ratio of polyester mixture to antistatic agent is 1:(0.1-0.3).

6. The method for preparing the polyester low-elasticity antistatic fabric according to claim 1, characterized in that, The preparation steps of the antistatic agent are as follows: (1) Under an inert atmosphere, diethylaminoethyl methacrylate and hexadecane bromoacetate were added to anhydrous ethanol, followed by hydroquinone. The mixture was reacted at 75-80℃ for 10-12 h. After filtration, washing and drying, the monomer was obtained. (2) Under an inert atmosphere, the monomer and 2-mercaptoethanesulfonic acid from step (1) are added to isopropanol, and then an initiator is added. The mixture is stirred at 80-85°C for 6-7 hours. After precipitation, filtration, washing and drying, the antistatic agent is obtained.

7. The method for preparing the polyester low-elasticity antistatic fabric according to claim 6, characterized in that, In step (1), the mass ratio of diethylaminoethyl methacrylate to hexadecane bromide is 1:(1.8-2.2).

8. The method for preparing the polyester low-elasticity antistatic fabric according to claim 6, characterized in that, In step (2), the mass ratio of monomer to 2-mercaptoethanesulfonic acid is (2.5-3.0):

1.

9. The method for preparing the polyester low-elasticity antistatic fabric according to claim 1, characterized in that, In step S2, the extruder temperature for melt spinning is 280~320℃, and the spinning speed is 3500~4000m / min, to obtain pre-oriented yarn.

10. A polyester low-elasticity antistatic fabric obtained by the preparation method according to any one of claims 1-9.

Images