Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof

A technology of temperature sensitivity and fabrics, applied in textiles and papermaking, etc., can solve the problems of airtightness, affecting work efficiency, poor comfort, etc., and achieves the effect of simple preparation method, reduced voids, and easy operation

Inactive Publication Date: 2008-11-12
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented process allows for making an antisecretive material without requiring expensive facilities like vacuum suction systems. It's made from synthetic polymers called neoprene (N) which absorb moisture when wet but still keep out other liquids such as oil during use. When this type of material comes into contact with another object they don’t get dirty easily because their outer layers are covered with tiny holes instead of just one hole per square centimeter across its entire area.

Problems solved by technology

This patented technical solution describes an improved version of antimicrobial garments that provide better protection against harmful microorganisms such as sea breeches during long periods when they fall down on land without getting hurt by their own weight.

Method used

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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  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof
  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof
  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof

Examples

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preparation example Construction

[0018] The preparation method (referred to as the preparation method) of the temperature-sensitive intelligent anti-soaking fabric (abbreviated as the anti-soaking fabric) designed by the present invention comprises the following steps:

[0019] 1. Synthetic temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; adopt the N-tert-butylacrylamide and acrylamide that feed molar ratio is 60~40: 40~60 (preferably 50:50) in Free radical polymerization occurs in methanol with ammonium persulfate or azobisisobutyronitrile (preferably ammonium persulfate) as the initiator; the reacted mixed solution is vigorously stirred, and the copolymer is precipitated with acetone and dissolved 3-5 times Precipitation gave a pure, white solid of N-tert-butylacrylamide and acrylamide copolymer. The aqueous solution of the obtained copolymer is temperature sensitive, and can be dissolved in water at a certain temperature, and it will not dissolve at a temperature higher than this temp...

Embodiment 1

[0028] 1. Synthesis of temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; N-tert-butylacrylamide and acrylamide with a feed molar ratio of 50:50 are used in methanol to generate ammonium persulfate as an initiator Free radical polymerization reaction; the reacted mixed solution was vigorously stirred, and the copolymer was precipitated with acetone, and dissolved and precipitated 5 times to obtain pure, white solid N-tert-butylacrylamide and acrylamide copolymer. Gained copolymer adopts spectrophotometry to measure its LCST to be 28.2 ℃ (referring to figure 1 ).

[0029] 2. Preparation of coating liquid: 8% (mass, the same below) of the copolymer obtained in the first step, 2.3% of the crosslinking agent BTCA and 2.2% of the catalyst SHP are formulated into an aqueous solution, stirred and put into the refrigerator for defoaming At least 24 hours, and make it further dissolve and mix, during which it can be stirred frequently to speed up the dissolution an...

Embodiment 2

[0033]1. Synthetic temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; adopting a feed molar ratio of N-tert-butylacrylamide and acrylamide in methanol with azobisisobutyronitrile as 40: 60 The initiator undergoes a free radical polymerization reaction; the reacted mixed solution is vigorously stirred, and the copolymer is precipitated with acetone, and after 4 times of dissolution and precipitation, a pure, white solid N-tert-butylacrylamide and acrylamide copolymer are obtained. The LCST of the obtained copolymer measured by spectrophotometry was 39.0°C.

[0034] 2. prepare coating liquid: the multipolymer of 15% (mass, the same below) the 1st step gained, the cross-linking agent BTCA of 5.0% and the catalyst SHP of 2.5% are formulated into the mixed homogeneous aqueous solution, all the other are the same as embodiment 1.

[0035] 3. Fabric coating: Coat the pre-treated pure cotton fabric twice with the coating solution prepared in step 2, and dry the fab...

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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Abstract

The invention relates to a preparation method for an intelligent temperature-variable and immersion-proof shell fabric and a product thereof. The preparation method comprises the following steps: 1. temperature-variable copolymer of N-tert-butyl-acrylamide and acrylamide is obtained through the composition with a to b as the mole ratio of incoming stocks; wherein, the a lies between 60 and 40, and the b lies between 40 and 60; 2. a coating layer liquid is prepared according to the following concentration formulation by mass: 8 to 15 percent of the copolymer, 2.0 to 5.0 percent of a crosslinking agent that is 1,2,3,4-butane tetrabasic carboxylic acid and 0.5 to 2.5 percent of a catalyst that is sodium hypophosphite; 3.the coating layer liquid is used for coating a preprocessed fabric; 4. the immersion-proof shell fabric can be obtained through post processing. The product is produced by adopting the preparation method of the intelligent temperature-variable and immersion-proof fabric of the invention.

Description

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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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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Owner TIANJIN POLYTECHNIC UNIV
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