引用本文:
韩孝族, 郭凤春, 王莲芝, 蔡延斌, 张庆余. 丁腈羟增韧环氧树脂研究Ⅰ.端异氰酸酯基预聚物法[J]. 应用化学,
1987, 4(1): 18-21.
Citation: Han Xiaozu, Guo Fengchun, Wang Lianzhi, Cai Yanbin, Zhang Qingyu. STUDY ON EPOXY RESIN TOUGHENED BY HYDROXY-TERMINATED BUTADIENE-ACRYLONITRILE COPOLYMER Ⅰ.METHOD BASED ON ISOCYANATE-TERMINATED PREPOLYMER[J]. Chinese Journal of Applied Chemistry, 1987, 4(1): 18-21.
Citation: Han Xiaozu, Guo Fengchun, Wang Lianzhi, Cai Yanbin, Zhang Qingyu. STUDY ON EPOXY RESIN TOUGHENED BY HYDROXY-TERMINATED BUTADIENE-ACRYLONITRILE COPOLYMER Ⅰ.METHOD BASED ON ISOCYANATE-TERMINATED PREPOLYMER[J]. Chinese Journal of Applied Chemistry, 1987, 4(1): 18-21.
丁腈羟增韧环氧树脂研究Ⅰ.端异氰酸酯基预聚物法
摘要:
丁腈羟液体聚合物和甲苯二异氰酸酯反应生成端异氰酸酯基预聚物,加入到环氧树脂中,得到性能良好的增韧树脂。用扭辫仪测定了它的动态力学性能,表明有两个损耗峰。透射电镜照片显示有两相结构,预聚物用量为30Phr时,发生明显的相倒转,从固化机理解释了这种现象。
English
STUDY ON EPOXY RESIN TOUGHENED BY HYDROXY-TERMINATED BUTADIENE-ACRYLONITRILE COPOLYMER Ⅰ.METHOD BASED ON ISOCYANATE-TERMINATED PREPOLYMER
Abstract:
Toughened epoxy resin with good properties was produced by adding isocyanate-terminated prepolymer obtained from hydroxy-terminated butadiene-acrylonitrile copolymer and toluene diisocyanate into epoxy resin. Its dynamic mechanical properties measured by torsional braid method indicate that there are two peaks in the plot of logarithmic decrement △ against temperature above 0℃. The transmission electron micrographs show that they have two phase structures and the phase reversal occures while prepolymer content being 30 phr. This phenomenon was explained in terms of the curing of the resin.
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