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A method for improving the adhesive formula for sizing by using ammonium dihydrogen phosphate

An ammonium dihydrogen phosphate and adhesive technology, applied in the field of textile processing, can solve problems such as time-consuming, increased elongation at break, environmental pollution, etc., and achieve the effects of improving permeability and enhancing adhesion

Active Publication Date: 2017-10-20
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 date of publication was July, 2000, the title of the article is the adhesion of polypropylene size and mixed size, and this document has explained that polypropylene is added in the mixed size of starch and PVA It is a type of size, which can improve the adhesion, improve the flexibility of the size film, and increase the elongation at break. Its disadvantage is that the environmental pollution after PVA desizing is relatively serious

Method used

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  • A method for improving the adhesive formula for sizing by using ammonium dihydrogen phosphate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Accurately weigh 30g of phosphate starch and 30g of acrylate solid slurry with an electronic balance and place it at the bottom of a 1L container. At the same time, weigh 1g of ammonium dihydrogen phosphate solid and add it to the container. Add water to the container to make the phosphate ester starch, acrylate, The total weight of ammonium dihydrogen phosphate and water reaches 1kg, the solution is stirred evenly, the container is placed in a 100°C water bath and heated, while the mixed solution in the container is stirred with a stirrer, and the stirring speed is set to 300 rpm , stir for 20 minutes, when the adhesive is completely gelatinized, stop stirring, seal the container with a film, and continue to cook the slurry in a water bath at 95-100 ° C for 40 minutes. The improved adhesive for sizing is prepared, and then the prepared cotton roving is wound on a special sizing rack, and the sizing rack is immersed in the improved adhesive for sizing. Dry in an oven at...

Embodiment 2

[0012] Accurately weigh 50g of phosphate starch and 50g of acrylate solid slurry with an electronic balance and place it at the bottom of a 1L container. At the same time, weigh 10g of ammonium dihydrogen phosphate solid and add it to the container. Add water to the container to make the phosphate ester starch, acrylate, The total weight of ammonium dihydrogen phosphate and water reaches 1kg, the solution is stirred evenly, the container is placed in a 100°C water bath and heated, while the mixed solution in the container is stirred with a stirrer, and the stirring speed is set to 300 rpm , stir for 20 minutes, when the adhesive is completely gelatinized, stop stirring, seal the container with a film, and continue to cook the slurry in a water bath at 95-100 ° C for 40 minutes. Prepare the improved adhesive for sizing, then wind the prepared cotton roving on a special sizing rack, immerse the sizing rack in the adhesive for sizing, take it out after 5 minutes, and place it at 8...

Embodiment 3

[0014] Accurately weigh 40g of phosphate starch and 40g of acrylate solid slurry with an electronic balance and place it at the bottom of a 1L container. At the same time, weigh 5g of ammonium dihydrogen phosphate solid and add it to the container. Add water to the container to make the phosphate ester starch, acrylate, The total weight of ammonium dihydrogen phosphate and water reaches 1kg, the solution is stirred evenly, the container is placed in a 100°C water bath and heated, while the mixed solution in the container is stirred with a stirrer, and the stirring speed is set to 300 rpm , stir for 20 minutes, when the adhesive is completely gelatinized, stop stirring, seal the container with a film, and continue to cook the slurry in a water bath at 95-100 ° C for 40 minutes. Prepare the improved adhesive for sizing, then wind the prepared cotton roving on a special sizing rack, immerse the sizing rack in the adhesive for sizing, take it out after 5 minutes, and place it at 80...

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Abstract

The invention relates to a method for improving a sizing adhesive formula by means of ammonium dihydrogen phosphate, and belongs to the field of textile processing. The method comprises the step of adding the ammonium dihydrogen phosphate 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 phosphate ester starch, the acrylic ester, the ammonium dihydrogen phosphate and the water, the mass of the acrylic ester is 3%-5% of the total mass of the phosphate ester starch, the acrylic ester, the ammonium dihydrogen phosphate and the water, and the mass of the ammonium dihydrogen phosphate is 0.1%-1% of the total mass of the phosphate ester starch, the acrylic ester, the ammonium dihydrogen phosphate and the water. The permeability of mixed sizing agents and the coating property of an adhesive for yarn surface sizing can be significantly improved, and therefore the sizing membrane property and the sizing effect are 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 belongs to the technical field of textile processing. Background technique [0002] During weaving, the action of the warp on the heald frame will generate about 4000 reciprocating movements from the warp beam to the weaving mouth. In this process, the role of the binder to protect the performance of the warp yarn is to increase the strength and reduce the hairiness. The three types of adhesives commonly used in the textile processing industry are: starch, acrylic and polyvinyl alcohol. The properties of the binder play an important role in the properties of the warp yarn after padding the binder. Therefore, in order to protect the warp yarns, the warp yarns are padded with adhesives. The protection of the warp yarns by the adhesives mainly comes from two aspects: one is that the adhesives penetrate into the inside of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/11D06M13/224D06M11/71D06M101/06
CPCD06M11/71D06M13/2246D06M15/11D06M2101/06D06M2200/40
Inventor 曹根阳盛丹刘欣徐卫林刘菁
Owner WUHAN TEXTILE UNIV
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