;
;
解;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
聚氨酯粘
剂主要有两组份构成，组份Ⅰ为多羟
物，如苯醚型酚醛树脂为主要成份；
)Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用聚氨酯粘剂主要有两组份构成，组份Ⅰ为多羟物，如苯醚型酚醛树脂为主要成份；
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酯粘剂主要成份之一,它结构及成工艺条件决定了该类粘剂性能。
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