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Study on Preparation and Performance of the New Textile Size

Author: ZhangChi
Tutor: YuShaoMing
School: Hefei University of Technology
Course: Chemical processes
Keywords: Textile pulp Acrylate Polyvinyl alcohol Nanomaterials Performance
CLC: TS103.846
Type: Master's thesis
Year: 2008
Downloads: 57
Quote: 0
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Abstract


The warp sizing the main slurry general divided into three categories of modified starch , polyvinyl alcohol and acrylic slurry . But because of the polyvinyl alcohol -biodegradable , so many countries have put forward the slogan of \Commonly used in the slurry at this stage still contains a large amount of polyvinyl alcohol , polyacrylic ester slurry absorbent and then stick serious ; large fluctuations in the viscosity of the starch slurry , gelatinization poor performance . Therefore an urgent need to develop an economical and environmentally friendly, the better performance of the new type of slurry . In this paper, the problems of the current slurry , to carry out the following work : At first, several cost-effective the comonomer synthetic polyacrylate slurry , and then this slurry acetate starch slurry preparation combination of PVA slurry mixed slurry, and through a series of experiments to determine the ratio of the slurry to reach the purpose of reducing the polyvinyl alcohol content , a certain amount of nanomaterials to improve the slurry properties and finally added to the composition in the slurry . Experimental results show that : acrylic acid, methyl acrylate , butyl acrylate , vinyl acetate as monomer , SDS, and OP-10 for the compound emulsifier , and initiator the polyacrylates slurry was prepared by emulsion polymerization using potassium persulfate , The optimum conditions for m (AA): m (MA): m (BA): m (VAc) = 5:8:5:2, m (SDS): m (OP-10) = 4:1, emulsified agent content of 5 % of the amount of monomer , the initiator content is 0.4 % of the amount of monomer , the polymerization temperature was 70 ° C , with NaHC0 3 as a pH buffer to maintain the emulsion stability, and purged with nitrogen prevent oxygen inhibitor . The polyacrylate textile pulp prepared moisture longer sticky and water-soluble improve tensile properties improved . Polyacrylic ester slurry and starch acetate slurry composition slurry polyvinyl slurry mass ratio of 15:10:12.5 hours , the complex is a combination of slurry properties and composition in the slurry polyvinyl alcohol content of 23% lower than the content of polyvinyl alcohol in the commercial slurry , hairiness service posted , and has a better economic efficiency . After the combination of slurry were added nano- SiO 2 , nano- TiO 2 and nano Al 2 O 3 to improve its performance , which add 0.5% nano- TiO 2 < / sub> slurry properties improve more .

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CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > General issues > Textile industry machinery and equipment > Textile accessories, equipment and auxiliary materials > Auxiliary materials > Slurry
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