聚乙烯醇缩糠醛的改性研究  

Study on modification of poly(vinyl furfural)

作　　者：安媛媛[1] 安璐[1] 高庆[1] 程时远[1] 易昌凤[1] 

机构地区：[1]湖北大学材料科学与工程学院,湖北武汉430062

出　　处：《粘接》2010年第1期48-50,共3页Adhesion

基　　金：湖北省科技厅创新团队基金资助

摘　　要：分别以甲苯-2,4-二异氰酸酯(TDI)、γ-氨丙基三乙氧基硅烷(KH-550)和氮丙啶为改性剂,对聚乙烯醇缩糠醛进行改性。研究了改性后胶膜的力学性能、热失重、耐水性、耐酸碱及耐有机溶剂腐蚀性。结果表明,氮丙啶改性聚乙烯醇缩糠醛的拉伸强度提高了69.59%,断裂伸长率提高了48.34%,耐水性、耐酸碱性及耐有机溶剂腐蚀性也都有了明显的提高;TDI改性聚乙烯醇缩糠醛的热稳定性明显优于其他产品。The poly（vinyl furfural） was modified with toluene-2,4-diisocyanate （TDI）, γ -aminopropyl triethoxysilane （KH-550） and aziridine as cross-linker. We studied mechanical properties, heating weightloss, water-resistance, acid and alkali-resistance and corrosion resistance to organic solvents of the poly（vinyl furfural） films. The results showed that the tensile strength increased by 69.59% and the elongation increased by 48.34%, and the water-resistance, alkali-resistance and corrosion-resistance were all markedly improved for the film modified with aziridine. The thermal stability ofpoly（vinyl furfural） modified with TDI is superior to other products.

关 键 词：聚乙烯醇缩糠醛 改性 Γ-氨丙基三乙氧基硅烷 甲苯-2 4-二异氰酸酯 氮丙啶 

分 类 号：TQ324.3[化学工程—合成树脂塑料工业]