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Preparation method of hydrophilic polyester fibers

A polyester fiber and hydrophilic technology, applied in fiber processing, textiles and papermaking, etc., can solve problems such as ineffective effects, and achieve the effects of controllable hydrophilic performance, comfortable wearing, and easy industrial implementation

Inactive Publication Date: 2011-09-14
RONGSHENG PETROCHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydrophilicity of the obtained fiber has been improved to some extent, but the effect is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] 1. Preparation of photosensitive polymer:

[0022] 1. Preparation of macromolecular photosensitizer:

[0023] Add an appropriate amount of 2,4 dihydroxybenzophenone (UV-0) and a weight ratio of 0.8%~2% NaOH into a dry three-necked flask, fill with nitrogen for 30 minutes, then add glycidyl methacrylate ( GMA), (the molar ratio to UV-0 is 1:1~2:1), stir and heat up to 60°C~90°C, and the reaction time is 3h~8h, to obtain a yellow viscous liquid (BPMA), keep away from light for use ;

[0024] 2. Preparation of hydrophilic photosensitive polymer:

[0025] Add the polymer monomers N-vinylpyrrolidone (VP) and BPMA into the three-necked flask respectively (the amount of VP and BPMA can account for 10%~90% of the total moles of the two), add an appropriate amount of deionized water, and add Sodium dodecyl sulfate (SDS) with a weight ratio of 1%~10%, adding 1%~5% azobisisobutylcyanide (AIBN) as an initiator, nitrogen gas for 30 minutes, stirring, reflux, and reaction temperat...

Embodiment 1

[0036] 1. Preparation of photosensitive polymer:

[0037] 1. Preparation of macromolecular photosensitizer:

[0038] Add 10.7g of 2,4 dihydroxybenzophenone (UV-0) and 0.155g of NaOH into a dry three-necked flask, fill with nitrogen for 30 minutes, then add 7.9g of glycidyl methacrylate (GMA), (with UV The molar ratio of -0 is 1:1), and the temperature was raised to 80°C with stirring, and the reaction time was 5 hours to obtain a yellow viscous liquid (BPMA), which was kept away from light for use.

[0039] 2. Preparation of photosensitive polymer:

[0040] To 33g N-vinylpyrrolidone (VP) and 12gBPMA (wherein the amount of VP and BPMA accounts for 90% and 10% of the total moles of the two respectively) in the three-necked flask, add an appropriate amount of deionized water, and the weight ratio is 1.7g ( 4wt% sodium dodecyl sulfate (SDS), add 0.48g (2wt%) azobisisobutylcyanide (AIBN), blow nitrogen for 30 minutes, stir, reflux, reaction temperature 80°C, reaction time 3h. Af...

Embodiment 2

[0045] 1. Preparation of photosensitive polymer:

[0046] 1. Preparation of macromolecular photosensitizer:

[0047] Add 10.7g of 2,4 dihydroxybenzophenone (UV-0) and 0.212g of NaOH into a dry three-necked flask, fill with nitrogen for 30 minutes, then add 15.8g of glycidyl methacrylate (GMA), (with UV The molar ratio of -0 is 2:1), and the temperature was raised to 60°C with stirring, and the reaction time was 3 hours to obtain a yellow viscous liquid (BPMA), which was kept away from light for use.

[0048] 2. Preparation of photosensitive polymer:

[0049] Add 3.7g of N-vinylpyrrolidone (VP) and 108g of BPMA to the three-necked flask respectively (the amount of VP and BPMA accounted for 10% and 90% of the total moles of the two respectively), and add an appropriate amount of deionized water at a weight ratio of 1.17g (1wt%) sodium dodecyl sulfate (SDS), add 1.17g (1wt%) ammonium persulfate (APS), blow nitrogen for 30 minutes, stir, reflux, reaction temperature 50°C, reacti...

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Abstract

The invention discloses a preparation method of hydrophilic polyester fibers. The method comprises the following steps that: a photosensitivepolymer solution with a hydrophilic group is uniformly coated onto the surface of un-oiled or oil-removed polyester fibers by a dipping or spraying method; and under the irradiation of ultraviolet light, the coating is solidified and then the photosensitivepolymer with the hydrophilic group is fixed on the surface of the polyester fibers, wherein the solid content of the coating solution is 1 percent to 50 percent; in the solidifying process of the photosensitivepolymer coating with the hydrophilic group, an ultraviolet light source is controlled to between 280 and 350 nm, the power is controlled to between 150 and 250 mW / cm<2>, and the irradiating time is controlled to between 2 and 15 seconds. Compared with the prior art, the preparation method has the characteristics of simple process, relatively low cost and the like; and the hydrophilic polyester fibers have the advantages that: the coating is not easy to fall off; the hydrophilic performance is long-lasting; the handfeel is soft; clothes made from the fibers are comfortable, and the like.

Description

technical field [0001] The invention relates to a method for preparing hydrophilic polyester fibers and products thereof, and belongs to the technical field of functional fibers. Background technique [0002] Among all kinds of clothing fibers, polyester fiber has been more widely used than other synthetic fibers because of its excellent spinnability, resource availability and consumer acceptance. However, polyester fibers are hydrophobic fibers with tightly arranged molecular chains, high crystallization and orientation, and the molecular chain structure itself has low polarity and lacks hydrophilic groups. Therefore, the hygroscopicity is very poor, resulting in much worse comfort than natural fibers such as cotton. With the continuous improvement of people's living standards, people's requirements for wearing comfort are also constantly improving. How to improve the moisture absorption and perspiration properties of polyester fibers without destroying other excellent pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/356D06M15/273D06M15/263C08F293/00D06M101/32
Inventor 李水荣金欣王闻宇郭成越俞凤娣马立东袁文冲杨宝华吴扬君刘奇良
Owner RONGSHENG PETROCHEM
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