论文部分内容阅读
酚类和醛类的缩聚产物通称为酚醛树脂,其合成和固化过程遵循体型缩聚反应的规律。控制不同的合成条件(如酚和醛的比例,所用催化剂的类型等),可以得到热塑性或热固性酚醛树脂。在酚醛树脂的生产过程中,常加入不同的油改性剂以增加树脂在橡胶中的
Polycondensation products of phenols and aldehydes, commonly known as phenolic resins, follow the laws of size-polycondensation for their synthesis and curing processes. Controlling different synthesis conditions (such as the ratio of phenol and aldehyde, the type of catalyst used, etc.), a thermoplastic or thermosetting phenolic resin can be obtained. In the production of phenolic resin, often with different oil modifiers to increase the resin in the rubber