Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用的聚氨酯粘剂主要有两组份构成,组份Ⅰ基化物,如苯醚型酚醛树脂主要成份;
Foundry polyurethane binder comprises component Ⅰ, a polyhydroxy component whose main component is benzylic ether phenolic resin, component Ⅱ, a polyisocyanate, and a catalyst.
铸造用的聚氨酯粘剂主要有两组份构成,组份Ⅰ基化物,如苯醚型酚醛树脂主要成份;
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的主要成份之一,它的结构及成工艺条件决定了该类粘剂性能。
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