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A method for improving the formulation of adhesive for sizing by utilizing ammonium dihydrogen phosphate and silane coupling agent

A technology of silane coupling agent and ammonium dihydrogen phosphate, which is applied in the field of textile processing, can solve the problems of time-consuming, polluting the environment, and long starch grafting process, and achieve the effect of improving permeability and enhancing adhesion

Active Publication Date: 2017-10-27
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as the Chinese publication "Macromolecular Materials Science and Engineering", the publication date is August 2009, the title of the article is the texture structure and performance of the phosphate starch / polyacrylate blend film. Supplemented with polyacrylate size to improve the flexibility of the size film, the disadvantage is that only phosphate starch supplemented with acrylic polyacrylate to improve the flexibility of the size film still cannot meet the requirements of the warp yarn during weaving. The requirements of surface size film flexibility, such as the Chinese publication "Cotton Textile Technology", the date of publication in November 2010, the title of the article is the study of maleic anhydride esterified acrylate grafted starch size, and this document introduces a The method of utilizing maleic anhydride to esterify acrylate grafted starch to improve the flexibility of the size film has the disadvantages that the starch grafting process is long, time-consuming, and energy-consuming, such as Chinese Patent Publication No. CN102329437A, disclosed On January 25, 2012, the name of the invention was a degradable starch composite slurry. The application disclosed a slurry compounded with plant starch, acetylated distarch phosphate, polyacrylic acid, starch and PVA. The disadvantage is that although the toughness of the size film is increased, the PVA cannot be degraded quickly after desizing and pollutes the environment.
Such as China's public publication "Cotton Textile Technology", the publication date was July 2012, and the title of the article is the modification of water-based polyurethane to starch size. This document has explained that adding water-based polyurethane components to starch size can make adhesion Improve the strength of the size film and improve the mechanical properties of the size film. The disadvantage is that the improvement of the performance of the size film by adding water-based polyurethane still cannot meet the conditions of warp sizing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Use an electronic balance to accurately weigh 30g phosphate starch and 30g acrylic ester solid slurry on the bottom of a 1L container, and at the same time weigh 1g of ammonium dihydrogen phosphate solid and 1g of silane coupling agent γ-mercaptopropyl triethoxy Add the silane solution to the container and add water to the container to make the total weight of phosphate starch, acrylate, ammonium dihydrogen phosphate, silane coupling agent γ-mercaptopropyltriethoxysilane and water reach 1kg, and stir the solution evenly. Place the container in a 100°C water bath and heat it while using a stirrer to stir the mixture in the container. The stirring speed is set to 300 revolutions per minute, and stirring is carried out for 20 minutes. When the adhesive is completely gelatinized, stop stirring. Seal the container with a film, and continue to cook the pulp in a water bath at 95-100°C for 40 minutes. Prepare an improved adhesive for sizing, then wind the prepared cotton roving...

Embodiment 2

[0014] Use an electronic scale to accurately weigh 50g phosphate starch and 50g acrylic ester solid slurry at the bottom of a 1L container, and at the same time weigh 10g solid ammonium dihydrogen phosphate and 20g silane coupling agent γ-mercaptopropyl triethoxy Add the silane solution to the container and add water to the container to make the total weight of phosphate starch, acrylate, ammonium dihydrogen phosphate, silane coupling agent γ-mercaptopropyltriethoxysilane and water reach 1kg, and stir the solution evenly. Place the container in a 100°C water bath and heat it while using a stirrer to stir the mixture in the container. The stirring speed is set to 300 revolutions per minute, and stirring is carried out for 20 minutes. When the adhesive is completely gelatinized, stop stirring. Seal the container with a film, and continue to cook the pulp in a water bath at 95-100°C for 40 minutes. Prepare an improved adhesive for sizing, then wind the prepared cotton roving on a ...

Embodiment 3

[0016] Use an electronic balance to accurately weigh 40g phosphate starch and 40g acrylate solid slurry at the bottom of the 1L container, and at the same time weigh 5g solid ammonium dihydrogen phosphate and 10g silane coupling agent γ-mercaptopropyltriethoxysilane Add the solution to the container and add water to the container to make the total weight of phosphate starch, acrylate, ammonium dihydrogen phosphate, silane coupling agent γ-mercaptopropyltriethoxysilane and water reach 1kg, stir the solution evenly, The container is heated in a water bath at 100°C, and the mixture in the container is stirred with a stirrer. The stirring speed is set to 300 rpm and stirred for 20 minutes. When the adhesive is completely gelatinized, stop stirring and use The container was sealed with the film, and the slurry was boiled in a water bath at 95-100°C for 40 minutes. Prepare an improved adhesive for sizing, then wind the prepared cotton roving on a special sizing frame, sizing in the a...

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PUM

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Abstract

The invention relates to a method for improving a sizing adhesive formula by means of ammonium dihydrogen phosphate and a silane coupling agent, and belongs to the field of textile processing. The method comprises the step of adding the ammonium dihydrogen phosphate and the silane coupling agent to the sizing adhesive formula containing phosphate ester starch, acrylic ester and water, wherein the mass of the phosphate ester starch is 3%-5% of the total mass of the sizing adhesive formula, the mass of the acrylic ester is 3%-5% of the total mass of the sizing adhesive formula, the mass of the ammonium dihydrogen phosphate is 0.1%-1% of the total mass of the sizing adhesive formula, and the mass of the silane coupling agent is 0.1%-2% of the total mass of the sizing adhesive formula. Due to the fact that the ammonium dihydrogen phosphate and the silane coupling agent are added into an adhesive, containing the phosphate ester starch and solid acrylic ester, for mixed sizing, the permeability of the adhesive for mixed sizing and the coating property of the adhesive for yarn surface sizing can be significantly improved, and the sizing membrane property is enhanced.

Description

Technical field [0001] The invention relates to a method for improving the formulation of a binder for sizing by using ammonium dihydrogen phosphate and a silane coupling agent, and belongs to the technical field of textile processing. Background technique [0002] When weaving, the action of the warp yarn in the heald frame from the warp beam to the weaving mouth will produce about 4000 reciprocating movements. In this process, the role played by the binder that protects the warp yarn performance is to increase strength and reduce hairiness. The three main types of adhesives commonly used in the textile processing industry are starch, acrylic and polyvinyl alcohol. The performance of the binder plays an important role in the performance of the warp yarn after padding the binder. Therefore, in order to protect the warp yarns, the warp yarns are padded with adhesive. The adhesive protects the warp yarns from two aspects: one is that the adhesive penetrates into the yarn to incre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/11D06M13/224D06M11/71D06M13/513D06M101/06
CPCD06M11/71D06M13/2246D06M13/513D06M15/11D06M2101/06D06M2200/40
Inventor 曹根阳鲁雪峰夏治刚徐卫林刘菁
Owner WUHAN TEXTILE UNIV