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Hydrophilic modification method for polyester fibers with bromoethane and PVA

A polyester fiber and hydrophilic modification technology, which is applied in fiber treatment, fiber type, textiles and papermaking, etc., can solve the problems of unfavorable industrial production and complicated operation, and achieve the benefits of industrial promotion, good water and sweat absorption, and subsequent operation easy effect

Active Publication Date: 2016-05-04
苏州东奕盛材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method adopts the microwave method to make the grafting reaction speed faster and more efficient than the conventional method, and the microwave penetration ability is strong, so as to achieve accurate temperature and reaction process control effect, but the method is complicated to operate, which is not conducive to industrial production.

Method used

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  • Hydrophilic modification method for polyester fibers with bromoethane and PVA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of bromoethane and PVA to the hydrophilic modification method of polyester fiber:

[0029] Add a sodium hydroxide solution with a mass fraction of 6% to the polyester fiber, stir and pretreat it at 60°C for 2 hours, the mechanical stirring speed is 100 rpm, and the solid-to-liquid ratio of the polyester fiber to the sodium hydroxide solution is 1: 30. Rinse with water after pretreatment, and dry at low temperature;

[0030] Add ethyl bromide solution to the polyester fiber after low-temperature drying, add pyridine p-toluenesulfonate solid of 0.01% of the dry weight of the polyester fiber, stir and heat, the mechanical stirring speed is 100 rpm, and the heating temperature is 30°C. Time 2h, the solid-to-liquid ratio of polyester fiber and ethyl bromide solution is 1:20, drain after reaction finishes;

[0031] The polyester fiber after draining is added the PVA solution that mass fraction is 4% again, stirs heating, and mechanical stirring speed is 200 rev / mins, an...

Embodiment 2

[0033] A kind of bromoethane and PVA to the hydrophilic modification method of polyester fiber:

[0034] Add a sodium hydroxide solution with a mass fraction of 8% to the polyester fiber, stir and pretreat at 65°C for 2.5 hours, the mechanical stirring speed is 150 rpm, and the solid-to-liquid ratio of the polyester fiber to the sodium hydroxide solution is 1 : 40, rinse with water after pretreatment, and dry at low temperature;

[0035] Add ethyl bromide solution to the polyester fiber after low-temperature drying, add pyridine p-toluenesulfonate solid of 0.02% of the dry weight of the polyester fiber, stir and heat, the mechanical stirring speed is 150 rpm, and the heating temperature is 35°C. Time 3h, the solid-to-liquid ratio of polyester fiber and ethyl bromide solution is 1:30, drain after reaction finishes;

[0036] The polyester fiber after draining is added the PVA solution that mass fraction is 5.5% again, stirring heating, mechanical stirring speed is 250 revs / min,...

Embodiment 3

[0038] A kind of bromoethane and PVA to the hydrophilic modification method of polyester fiber:

[0039] Add a sodium hydroxide solution with a mass fraction of 6% to the polyester fiber, stir and pretreat it at a temperature of 65°C for 2 hours, the mechanical stirring speed is 150 rpm, and the solid-to-liquid ratio of the polyester fiber and the sodium hydroxide solution is 1: 30. Rinse with water after pretreatment, and dry at low temperature;

[0040] Add ethyl bromide solution to the polyester fiber after low-temperature drying, add pyridine p-toluenesulfonate solid of 0.02% of the dry weight of the polyester fiber, stir and heat, the mechanical stirring speed is 100 rpm, and the heating temperature is 35°C. Time 2h, the solid-to-liquid ratio of polyester fiber and ethyl bromide solution is 1:30, drain after reaction finishes;

[0041] The polyester fiber after draining is added the PVA solution that mass fraction is 4% again, stirring heating, mechanical stirring speed ...

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Abstract

The invention discloses a hydrophilic modification method for polyester fibers with bromoethane and PVA and belongs to the technical field of macromolecules. According to the method, a sodium hydroxide solution is added to the polyester fibers, the mixture is stirred, heated and preprocessed, the surfaces of the polyester fibers are damaged, and subsequent modification processing is facilitated; a bromoethane solution is added to the polyester fibers, the mixture is stirred and heated and subjected to modification treatment, then a PVA solution with the mass ratio being 4-5.5% is added to the polyester fibers, the mixture is stirred and heated, and the polyester fibers obtained after hydrophilic modification is obtained. According to the method, after the sodium hydroxide solution is added for preprocessing the polyester fibers, the bromoethane solution and the PVA are utilized to conduct modification processing on the polyester fibers, and the polyester fibers good in hydrophilia and antistatic performance are obtained. The method is easy and convenient to operate, the reaction speed and the reaction temperature are easy to control, the amount of organic solvent added in the reaction process is small, low toxin, low pollution and low emission are achieved, subsequent operation is easy and convenient to conduct, industrialized popularization are facilitated, and high economic benefits are achieved.

Description

Technical field: [0001] The invention discloses a method for hydrophilically modifying polyester fibers with ethyl bromide and PVA, and belongs to the technical field of textile finishing methods. Background technique: [0002] Polyester is the trade name of polyethylene terephthalate fiber, and it is one of the three main fibers in synthetic fibers. Because the polyester linear macromolecule is a symmetrical benzene ring structure, the linearity is good and the molecular chain structure is three-dimensional, which makes it have superior physical and mechanical properties such as high strength, good elasticity and rigidity, and is stable to weak acids and alkalis, and has excellent dimensions. Stability and good corrosion resistance, it is an ideal textile fiber. However, polyester is a typical hydrophobic fiber with only one hydroxyl group at each end of its molecule and no other hydrophilic groups. The molecular structure Closely arranged, high crystallinity, poor hygrosc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/08D06M15/333D06M101/32
CPCD06M13/08D06M15/333D06M2101/32
Inventor 周继东
Owner 苏州东奕盛材料科技有限公司
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