Method of surface grafting modification for nylon fabric

A nylon fabric and microwave modification technology is applied in the field of surface graft modification of nylon fabric to achieve the effects of improved moisture absorption, strong microwave penetration, and improved anti-droplet performance.

Inactive Publication Date: 2013-05-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The highlights of the present invention are: 1. For the first time, microwave grafting technology is applied to the surface grafting modification of nylon fabrics. At present, there is no report at home and abroad that the microwave method is applied to the surface grafting modification of synthetic fabrics.

Method used

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  • Method of surface grafting modification for nylon fabric

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Experimental program
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Effect test

Embodiment 1

[0010] Nylon fabric in 0.4% Na 2 CO 3 Boil in water for 30min in the solution, then extract with acetone for 12h, then put the fabric into 0.5% K 2 S 2 o 8 In the initiator solution, react under microwave conditions for 20 minutes, after two dipping and two rolling (roller speed 1m / min, pressure 0.3MPa), the fabric is transferred to a pre-configured 3% hydroxyethyl methacrylate solution, in After reacting in a microwave oven for 60 minutes, take it out, wash and dry it with water, boil it in boiling water for 30 minutes to remove the homopolymer on the surface of the fabric, and then dry it in an oven to constant weight. The reaction temperature is from room temperature to 80°C, and the microwave power is 400W. The grafting rate of the nylon fabric was 26.6%, and there was no droplet in the vertical combustion, and the wetting time of the hygroscopicity test was reduced from 427.3s to 26.5s.

Embodiment 2

[0012] Nylon fabric in 0.4% Na 2 CO 3 Boil in water for 30min in the solution, then extract with acetone for 12h, then put the fabric into 1.5% K 2 S 2 o 8 In the initiator solution, react under microwave conditions for 20 minutes, after two dipping and two rolling (roller speed 1m / min, pressure 0.3MPa), the fabric is transferred to a pre-configured 5% hydroxyethyl methacrylate solution. After reacting in a microwave oven for 60 minutes, take it out, wash and dry it with water, boil it in boiling water for 30 minutes to remove the homopolymer on the surface of the fabric, and then dry it in an oven to constant weight. The reaction temperature is from room temperature to 80°C, and the microwave power is 400W. The grafting rate of the nylon fabric was 13.57%, and 2 drops were melted during vertical burning, and the wetting time of the hygroscopicity test was reduced from 427.3s to 48.7s.

Embodiment 3

[0014] Nylon fabric in 0.4% Na 2 CO 3 Boil in water for 30min in the solution, then extract with acetone for 12h, then put the fabric into 0.5% K 2 S 2 o 8 In the initiator solution, react under microwave conditions for 20 minutes, after two dipping and two rolling (roller speed 1m / min, pressure 0.3MPa), the fabric is transferred to a pre-configured 5% hydroxyethyl methacrylate solution, After reacting in a microwave oven for 70 minutes, take it out, wash and dry it with water, boil it in boiling water for 30 minutes to remove the homopolymer on the surface of the fabric, and then dry it in an oven until it reaches a constant weight. The reaction temperature is from room temperature to 80°C. It is 400W. The grafting rate of the nylon fabric was 53.6%, and 3 drops were melted when burning vertically, and the wetting time of the hygroscopicity test was reduced from 427.3s to 108.5s.

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Abstract

The invention relates to a method of surface grafting modification for nylon fabric with a microwave irradiation method. The grafting reaction conducted with the microwave method has the advantages of short response time, uniform reaction and small influence on a property of the fabric. As hydroxyethyl methacrylate serves as a grafting monomer, the hygroscopicity of the grafted nylon fabric is improved obviously, and the dripping resistance is good; in addition, the reaction is combined with chemical bonds; an effect is stable and lasting; and the washing resistance is high.

Description

technical field [0001] The invention relates to a method for surface grafting modification of nylon fabrics, that is, using a microwave method to carry out surface grafting on nylon fabrics, so as to improve the anti-dropping performance and moisture absorption performance of nylon fabrics. Background technique [0002] Nylon has been developed into the world's most diverse and widely used engineering plastics since it was launched by Du Pont in 1930, and its total output ranks first in the world's engineering plastics. Nylon fabric is widely used in tents, interior decoration, airbags and clothing because of its advantages such as high strength, good wear resistance, good elasticity, and insect resistance. Nylon fabric itself has a certain self-extinguishing property, but when the fire is relatively large, its larger specific surface area is more likely to make the fire spread rapidly, and due to the melting point (215-265°C) and ignition point temperature (403-431°C) of ny...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/34
Inventor 张胜赵倩谷晓昱董明哲姜鹏
Owner BEIJING UNIV OF CHEM TECH
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