Citation:
YANG Guisheng, LU Fengcai. POLYCAPROLACTAM MODIFIED BY POLYBENZIMIDAZOLE[J]. Chinese Journal of Polymer Science,
1990, 8(1): 79-86.
POLYCAPROLACTAM MODIFIED BY POLYBENZIMIDAZOLE
摘要:
Three polycaprolactam samples modified by 0.05—0.50% polybenzimidazole (PBI) by weight were prepared. Their structure and mechanical properties were characterized by means of FT-IR, SEM, DTA, density tensile, impact and viscoelastic method. PBI delayed the superimposed polymerization-crystallization process of the activated anionic polymerization of caprolactam. The monomer casting (MC) nylons modified by PBI had lower crystallinities, lower Tg and more nearly perfect spherulites than MC nylon itself, and more nearly perfect spherulites than MC nylon itself,and showed a typical toughening effect.
English
POLYCAPROLACTAM MODIFIED BY POLYBENZIMIDAZOLE
Abstract:
Three polycaprolactam samples modified by 0.05—0.50% polybenzimidazole (PBI) by weight were prepared. Their structure and mechanical properties were characterized by means of FT-IR, SEM, DTA, density tensile, impact and viscoelastic method. PBI delayed the superimposed polymerization-crystallization process of the activated anionic polymerization of caprolactam. The monomer casting (MC) nylons modified by PBI had lower crystallinities, lower Tg and more nearly perfect spherulites than MC nylon itself, and more nearly perfect spherulites than MC nylon itself,and showed a typical toughening effect.
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