Method for graft modification of silks

A graft modification, silk technology, applied in textiles and papermaking, fiber processing, animal fibers, etc., can solve the problems of poor durability of wear resistance, easy to harden silk, etc., and achieve high hydrolysis efficiency and high bonding firmness. Effect

Active Publication Date: 2016-02-03
HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the disadvantages of easy hardening of silk and poor durability of wear resistance in the prior art, the present invention provides a method for grafting and modifying silk

Method used

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  • Method for graft modification of silks
  • Method for graft modification of silks

Examples

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Effect test

Embodiment 1

[0021] A method for grafting and modifying silk, comprising the steps of:

[0022] Pretreatment step: the silk to be modified is degummed first, then washed twice with ethanol and water respectively, and then dried at a constant temperature of 55°C for 12 hours. Wherein, the degumming method adopts the soap alkali method, and the pH value of the lye is 10;

[0023] Step A: Use tetrahydrofuran as solvent and 1g of poly-N-isopropylacrylamide-co-acrylic acid polymer as solute to prepare 0.02L of a 50g / L solution, add 0.02g of catalyst 4-dimethylaminopyridine, and Stir the reaction for 1h;

[0024] Step B: Use tetrahydrofuran as a solvent and 0.1 g of N,N'-dicyclohexylcarbodiimide as a solute to prepare a 50 g / L solution, and immerse 2 g of silk that has undergone a pretreatment step into the liquid surface. 1:10, stirred and reacted at room temperature for 1h;

[0025] Step C: Pour the solution prepared in Step A into the container of Step B, and stir and react at room tempera...

Embodiment 2

[0028] A method for grafting and modifying silk, comprising the steps of:

[0029] Pretreatment step: degumming the silk to be modified, then washing it with ethanol and water three times respectively, and then drying at a constant temperature of 35°C for 24 hours. Wherein, the degumming method adopts the soap alkali method, and the pH value of the lye is 9.5;

[0030] Step A: with toluene as solvent, with 0.5g PMEO 2 MA-b-PAA polymer is used as solute, and 0.01L of 50g / L solution is prepared, 0.02g of catalyst 4-dimethylaminopyridine is added, and the reaction is stirred at room temperature for 1.5h;

[0031] Step B: Use toluene as the solvent and 0.2g of N,N'-dicyclohexylcarbodiimide as the solute to make a 50g / L solution, and immerse 1g of silk that has undergone the pretreatment step into the liquid surface. 1:14, stirring reaction at room temperature for 1.5h;

[0032] Step C: Pour the solution prepared in Step A into the container of Step B, and stir and react at room...

Embodiment 3

[0035] A method for grafting and modifying silk, comprising the steps of:

[0036] Pretreatment step: the silk to be modified is degummed first, then washed with ethanol, water, ethanol and water four times in sequence, and then dried at a constant temperature of 45°C for 18 hours. Wherein, the degumming method adopts the soap alkali method, and the pH value of the lye is 10.5;

[0037] Step A: with tetrahydrofuran as solvent, with 0.5g PMEO 2 MA-b-PAA polymer is used as the solute, and 0.02L of 25g / L solution is prepared, 0.01g of catalyst 4-dimethylaminopyridine is added, and the reaction is stirred at room temperature for 2h;

[0038] Step B: Use tetrahydrofuran as a solvent and 0.2g of N,N'-diisopropylcarbodiimide as a solute to prepare 0.002L of a 100g / L solution, and immerse 1g of silk that has undergone a pretreatment step into the liquid surface , the solution-bath ratio is 1:22, stirring and reacting at room temperature for 2h;

[0039] Step C: Pour the solution pr...

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Abstract

The invention relates to the field of spinning, and discloses a method for graft modification of silks. 4-dimethylamino pyridine is used as a catalyst, carbodiimide is used as a condensing agent, a polymer containing carboxyl is activated and then reacts with amidogen of the silks, and the polymer is bound to the silks. The carbodiimide is used as the condensing agent, the carboxyl is activated and then acts with the amidogen of the silks to form an amido bond, the reaction condition is mild, modification is different from traditional physical absorption modification, and the made modified silks have the advantages of being high in filling power, good in durability, high in wear resistance, high in fastness and not prone to loss in the using process.

Description

technical field [0001] The invention relates to the textile field, in particular to a method for grafting and modifying silk. Background technique [0002] Silk is a high-grade textile raw material with excellent performance, known as the "fiber queen". Due to the shortage of natural silk raw materials, silk fabrics are expensive. Silk is used as the filling of the quilt core in home textiles, which has the effects of warming in winter and cooling in summer, skin care and health care, but the silk quilt has the disadvantages of easy hardening and insufficient wear resistance and durability for long-term use. Therefore, it has become the focus of people's attention to find ways to effectively improve the easy hardening properties of silk and improve the wear resistance and durability of silk. Contents of the invention [0003] The invention provides a method for grafting and modifying silk, aiming at the shortcomings of easy hardening of silk and poor durability of wear r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/285D06M13/322D06M13/355D06M101/10
Inventor 王际平方奇生陈涛
Owner HAINING GREEN UNIVERSE TEXTILE TECH CO LTD
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