Polyvinyl chloride-polyethylene polyamine resin is a new polymer phase transfer catalyst.
它是一种新型的高分子相转移催化剂。
The choice of this paper is the epoxy resin and polyethylene polyamine curing system, and glass fiber reinforced epoxy resin system as the damping materials.
本文选择的是环氧树脂和多乙烯多胺固化体系，以及玻璃纤维增强环氧树脂体系作为阻尼层材料。
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