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Preparation and Performance Study on Hand-painted Slow Reaction Polyurea
Author(s): 
Pages: 5-7,15
Year: Issue:  12
Journal: China Building Waterproofing

Keyword:  手涂聚脲MDI预聚体胺类扩链剂力学性能;
Abstract: 制备了一种慢反应型PUA手涂聚脲材料,研究了MDI预聚体中-NCO含量、不同种类扩链剂和催化剂用量对慢固化PUA弹性体力学性能的影响.结果表明,当-NCO含量为11%~12%时,PUA弹性体的综合力学性能较佳;从施工角度考虑,选用MOCA作为扩链剂,能延缓凝胶时间;催化剂用量应小于0.1%.
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