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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. shu

STUDY ON EPOXY RESIN TOUGHENED BY HYDROXY-TERMINATED BUTADIENE-ACRYLONITRILE COPOLYMER Ⅰ.METHOD BASED ON ISOCYANATE-TERMINATED PREPOLYMER

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Corresponding author: Han Xiaozu,
Received Date: 12 September 1985
Available Online: 10 January 1986
Fund Project:

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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