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
聚氨酯粘
剂
有两组份构成，组份Ⅰ为多羟基化物，如苯醚型酚醛树脂为成份；
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词
想词Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用聚氨酯粘剂有两组份构成，组份Ⅰ为多羟基化物，如苯醚型酚醛树脂为成份；
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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