转相乳化法制备乙烯基酯树脂炭纤维上浆剂  

Preparation of Vinyl Ester Resin Sizing Agent for Carbon Fiber by Phase Inversion Emulsification

作　　者：刘建叶[1] 陈娟[1] 柳华实[1] 王冬至[1] 葛曷一[1] 

机构地区：[1]济南大学材料科学与工程学院,济南250022

出　　处：《材料工程》2011年第8期82-86,92,共6页Journal of Materials Engineering

基　　金：山东省高等学校科技计划资助项目(J09LD06);济南大学科研基金资助项目(XKY0901);济南大学研究生创新基金资助项目(YCX09002)

摘　　要：以乙烯基酯树脂与端环氧基反应型液态丁腈橡胶为主浆料,采用转相乳化法制备乳液型炭纤维上浆剂。探讨乳化剂种类、质量比、乳化温度、搅拌速率和溶剂对乳液性能的影响。结果表明:当乳化剂壬基酚聚氧乙烯醚磷酸铵与蓖麻油聚氧乙烯醚质量比为3∶1,乳化剂质量分数为主浆料的10%、乳化温度为50℃、搅拌速率为10000r/min、苯乙烯质量分数为主浆料的50%时,乳液稳定性最高,平均粒径0.068μm。离心沉淀分数为8.67%,Zeta电位为53.24mV,表面张力为32mN.m-1。电导率在转相时突增,转相后电导率趋于平稳,体系发生完全相反转。Through phase inversion emulsification method emulsion type vinyl ester resin sizing agent for carbon fiber was prepared using vinyl ester resin and epoxy terminated butadiene-acrylonitrile oligomer.Effects of type and mass ratio of emulsifiers,emulsification temperature,shear rate and solvents on properties of emulsion were investigated by centrifugal sedimentation analysis,particle size analysis and Zeta potential analysis.The results showed that the optimal emulsion was obtained when the mass ratio of polyoxyethylene nonylphenol phosphoric ammonium and polyoxyethylene castor oil was 3∶1,mass ratio of emulsifiers was 10%,emulsification temperature was 50℃,shear rate was 10000r/min and mass ratio of diluent styrene was 50%.The average particle size of the emulsion was 0.068μm.Centrifugal sedimentation mass fraction was 8.67%.Zeta potential and surface tension of the emulsion were 53.24mV and 32mN·m-1,respectively.A sudden increase of conductivity appeared at phase inversion point,then the conductivity reached equilibrium.

关 键 词：炭纤维 上浆剂乳液 乙烯基酯树脂 转相乳化 乳化剂 

分 类 号：TB324[一般工业技术—材料科学与工程]