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Method for preparing co-polymerized polyocarboxy acid oxymethylene-free anti-creasing finish agent

An anti-wrinkle finishing agent, polycarboxylic acid technology, used in fiber processing, textiles and papermaking, etc., can solve the problems of not mentioning the influence of polymer main chain end groups on the properties of polymers, and achieve both cost and The use effect, the production process is simple, and the expensive effect is overcome

Inactive Publication Date: 2008-11-19
HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Synthesized maleic anhydride-acrylic acid-itaconic acid 1: 1: 1 molar copolymer in Chinese patent 200410051915.1, its dry wrinkle recovery angle is close to BTCA, and this patent uses persulfate as the initiating system. The proportion, amount of initiator, reaction temperature and other processes have been studied, but the type of end group of the polymer main chain and its influence on the performance of the polymer have not been mentioned.

Method used

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  • Method for preparing co-polymerized polyocarboxy acid oxymethylene-free anti-creasing finish agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) 48g maleic anhydride was mixed with 200g mass percent 30% hydrogen peroxide in a reaction flask, and reacted for 20-40 minutes at 40°C to generate peroxidized maleic anhydride as an initiator solution;

[0020] (2) Heat up to 100°C, keep stirring and reflux, continuously add 96g of acrylic acid aqueous solution dropwise from the dropping funnel, and complete the dropwise addition within 2 hours;

[0021] (3) Keep the reflux reaction for 2 hours, and cool down to 40° C. to obtain a colorless or light yellow transparent liquid.

Embodiment 2

[0023] With embodiment 1, the addition amount of hydrogen peroxide is 160g, all the other conditions are constant.

Embodiment 3

[0025] With embodiment 1, the addition amount of hydrogen peroxide is 240g, all the other conditions are constant.

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Abstract

The invention belongs to the fine chemicals synthesis technical field, and discloses a method for synthesizing a copolymer polycarboxylate series non-formaldehyde crease-resistant finishing agent. The method adopts a clean aqueous solution polymerization technology, and comprises the following steps of: selecting H2O2-maleic anhydride as an initiator to perform a polymerization reaction at a reflux temperature with continuously dropping acrylic acid or an aqueous solution of the acrylic acid and vinyl acetate; synthesizing bipolymers and multi-element copolymers, which are terminated by carboxyl and use maleic anhydride and the acrylic acid as main monomers, through adjusting the proportions of the monomers and the dosage of the initiator. When the non-formaldehyde crease-resistant finishing agent is used as a non-formaldehyde crease-resistant finishing agent for textiles, thereby the crease recovery capability of the textiles can be improved.

Description

technical field [0001] The invention belongs to the technical field of synthesis of fine chemicals, and relates to a synthesis method of polycarboxylic acid compounds, in particular to a preparation method of a copolymerized polycarboxylic acid formaldehyde-free anti-wrinkle finishing agent. Background technique [0002] N-methylolamide resin anti-wrinkle finishing agent (such as 2D resin, etc.) has the advantages of low price and good finishing effect, and is widely used in the textile industry, but the fabrics treated by it will release during processing, storage and use. formaldehyde which is harmful to human body and environment. As domestic and foreign markets have higher and higher requirements for green textiles and environmental ecological protection, environmentally friendly anti-wrinkle finishing agents have become the main direction of the development of textile auxiliaries today. In recent years, a certain amount of research has been carried out on polycarboxyli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/06C08F4/34D06M15/263D06M15/333D06M15/285
Inventor 董学亮胡卫东刘明徐丹余学军牧广照赵献增张文楠
Owner HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI
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