松香基环氧树脂/松节油基聚氨酯互穿聚合物网络结构与性能研究  

INTERPENETRATING POLYMER NETWORKS PREPARED FROM A ROSIN-BASED EPOXY RESIN AND A TURPENTINE-BASED POLYURETHANE

作　　者：商士斌[1] 夏建陵[1] 谢晖[2] 黄焕[1] 王定选[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏南京210042 [2]南京工业大学化工学院,江苏南京210009

出　　处：《林产化学与工业》2004年第B08期33-36,共4页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目 (39970 5 99)

摘　　要：以同步法制备不同配比的松香基环氧树脂 (RER) /松节油基聚氨酯 (TPU )互穿网络体系。傅里叶变换红外光谱 (FT -IR)分析表明 :在RER /TPU的互穿聚合物网络 (IPN)中两个网络有序反应的机率大于同时反应的机率 ;差示扫描量热法分析表明所有的IPN均只有单个玻璃化转变温度 (Tg) ,说明在IPN中TPU和RER有好的相容性 ,并且当RER含量为 13%时 ,Tg 值最高。拉伸剪切强度等力学性能表明 :RER和TPU的配比对IPN的力学性能有一定的影响 ,且RER含量为 13%时IPN体系力学性能最佳。A series of interpenetrating polymer network (IPN) materials, based on a rosin-based epoxy resin (RER) and a turpentine-based polyurethane (TPU) were prepared from gum rosin and turpentine oil. FT-IR spectra showed that the curing rate of the turpentine oil-based polyurethane was faster than that of the rosin-based epoxy resin and these two networks formed more sequentially than simultaneously in the final IPNs. The results of DSC showed that there was no phase separation in the final IPNs and each of the IPNs exhibited a single, broad glass transition temperature. When the rosin-based epoxy resin was 13 % by weight, T_g reached the top value. The results of performance tests also showed that when the rosin-based epoxy resin was 13 % by weight, IPN exhibited the optimum mechanical properties.

关 键 词：松香基环氧树脂 松节油基聚氨酯 互穿聚合物网络 同步法 拉伸剪切强度 冲击强度 附着力 

分 类 号：TQ351.47[化学工程] TQ316.6