基的，烃基的;
;
基;Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用的聚氨
粘
剂主
有两组
构
，组Ⅰ为多羟基化物，如苯醚型酚醛树脂为主；
Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用的聚氨粘剂主有两组构，组Ⅰ为多羟基化物，如苯醚型酚醛树脂为主；
Benzylic ether phenolic resin is one of the main components of foundry polyurethane binder; its structure and preparation condition determine the performances of polyurethane binder.
苯醚型酚醛树脂是铸造用聚氨粘剂的主之一,它的结构及工艺条件决定了该类粘剂性能。
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