H870-901用于淤泥填充微收缩不饱和聚酯材料的研究  

Research on micro-shrinkage silt-filled unsaturated polyester resin by using H870-901

作　　者：严玉[1] 王惠[1] 王晓钧[1] 张萍 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]金陵帝斯曼树脂有限公司,江苏南京210038

出　　处：《热固性树脂》2010年第2期19-22,26,共5页Thermosetting Resin

摘　　要：采用高分辨魔角旋转核磁共振(HR/MAS-NMR)、DSC结合SEM分析研究了极性低收缩剂H870-901对淤泥填充不饱和聚酯树脂体系收缩性的影响及其作用机理。结果表明,当H870-901的质量分数为12%(以树脂计)时,体系的收缩率满足低收缩热固性不饱和聚酯材料收缩率<0.25%的要求;质量分数达到18%时,体系的收缩率满足微波纹材料收缩率<0.1%的要求。体系中形成的微孔和H870-901包覆的未完全固化交联的小胶粒结构是抑制体系收缩的2个主要原因。The effetct of polar low profile additive H870-901 on the volume shrinkage of silt-filled unsaturated polyester resin and the mechanism were investigated by high-resolution magic angle spinning nuclear magnetic resonance （HR /MAS-NMR）,DSC and SEM analysis.The results showed that the shrinkage of the system with 12wt%（based on the resin） H870-901met the micro-shrinkage thermosetting unsaturated polyester materials requirement0.25% and the system with 18wt%H870-901met the sophisticated products requirement 0.1%.The hole formed in the system and the the structure of H870-901 coated uncompletely cured small particles were the two main reasons for shrinkage suppression.

关 键 词：低收缩添加剂 淤泥 不饱和聚酯 高分辨魔角旋转核磁共振 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]