H-M协同强化PVAc乳液合成工艺的研究  

Study on Synergistic Enhancement of Synthetic Process of Polyvinyl Acetate Emulsion with H-M

作　　者：程海涛[1] 申献双[2] CHENG Hai-tao;SHEN Xian-shuang(Department of Applicative Chemistry,Hengshui University,Hengshui 053000,China;Department of Art,Hengshui University,Hengshui 053000,China)

机构地区：[1]衡水学院化工学院,河北衡水053000 [2]衡水学院美术学院,河北衡水053000

出　　处：《塑料工业》2020年第5期23-27,共5页China Plastics Industry

基　　金：2018年河北省高等学校科学研究项目(Z2018027);2018年衡水学院校级课题(2018LX17);河北省高等学校人文社会科学研究项目(SQ172022)。

摘　　要：利用水力空化与机械搅拌(H-M)协同强化技术,强化聚乙酸乙烯酯乳液合成工艺,提高了乳液固含量,制备了综合性能优良的均聚乙酸乙烯酯乳液,同时根据H-M协同强化技术原理设计了H-M协同强化聚乙酸乙烯酯乳液合成设备示意图。通过单因素试验和响应面试验优化聚合工艺。H-M协同强化聚乙酸乙烯酯乳液合成工艺,优化条件为,m(PVA)=5. 4%VAc、m(10%过硫酸铵)=12%VAc、m(VAc)=100 g、m(H2O)=50%~65%VAc、m(10%碳酸氢钠溶液)=2%VAc、H-M复合强化转速756 r/min、H-M复合强化压力0. 082 MPa、H-M复合强化时间19. 5 min,固含量达到65. 67%。H-M协同强化聚乙酸乙烯酯乳液综合性能优良。Using hydraulic cavitation and mechanical agitation( H-M) synergistic strengthening technology,the synthetic process of polyvinyl acetate emulsion was strengthened,the solid content of the emulsion was increased,and homopolyvinyl acetate emulsion with excellent comprehensive properties was prepared. At the same time,schematic of synergistically enhanced polyvinyl acetate emulsion synthesis equipment for H-M was designed based on the principle of H-M synergistic strengthening technology. The polymerization process was optimized through single-factor tests and response surface tests. The results show that H-M synergistically strengthens the synthetic process of polyvinyl acetate emulsion. The optimized conditions are m( PVA) = 5. 4%VAc,m( 10% ammonium persulfate) =12%VAc,m( VAc) = 100 g,m( H2O) = 50% ~ 65%VAc,m( 10% sodium bicarbonate solution) = 2%VAc,H-M composite strengthening speed is 756 r/min,H-M composite strengthening pressure is 0. 082 MPa,H-M composite strengthening time is 19. 5 min,solid content could reach 65. 67%. H-M synergistically strengthens the polyvinyl acetate emulsion with excellent comprehensive properties.

关 键 词：水力空化与机械搅拌协同强化 聚乙酸乙烯酯乳液 固含量 性能 

分 类 号：TQ316.334[化学工程—高聚物工业]