Soap-free polyacrylate textile sizing agent and method for preparing same

Abstract

The invention relates to a soap-free polyacrylate textile sizing agent and a method for preparing the same. The soap-free polyacrylate textile sizing agent comprises acrylic acid, methacrylic acid, methyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, molecular weight modifiers, water-soluble polyester, ammonium persulfate, ammonia water and deionized water, and is characterized in that the traditional emulsifiers are replaced by the water-soluble polyester. Compared with the prior art, the soap-free polyacrylate textile sizing agent and the method have the advantages that the sizing agent is environmental friendly and nontoxic and is easy to biologically degrade; the sizing agent is excellent in polyester fiber affinity and adhesive strength; the sizing agent is low in water absorption, and accordingly weaving requirements of water jet looms can be met; sizing films are good in alkali solubility, and desizing can be facilitated.

Description

technical field [0001] The invention relates to a textile size and its preparation method, more specifically, it relates to a soap-free polypropylene ester textile size used for polyester filament weaving and sizing and a preparation method thereof. Background technique [0002] During weaving, the warp yarn needs to be repeatedly rubbed, stretched, wound and impacted by the movement of the loom. In order to reduce the breakage rate and improve the weaving efficiency, the warp yarn must be sized before weaving. The slurry used in the traditional method includes starch and polyvinyl alcohol (PVA). Due to the large amount of PVA used, it causes great environmental pollution. Some countries have listed it as a banned product. Since then, more and more companies have begun to use polyacrylate sizing with better performance. Polyacrylate sizing plays a key role in the sizing and weaving of polyester filaments. However, the polymerization of polyacrylate slurry is usually carried...

AI Technical Summary

Problems solved by technology

However, the polymerization of polyacrylate slurry is usually carried out in the presence of emulsifiers, and most emulsifiers do not participate in the polymerization reaction. The emulsifiers left in the final product have adverse effects on the water resistance and adhesion of the size film. good impact

In particular, the AEPO emulsifier has high toxicity and poor biodegradability, and the degradation metabolites are also toxic and pollute the environment.