A foamable phenolic resin was prepared,through addition,condensation,in the presence of alkali.The resin was foamed with surfactant, foamer,solidifying agent , then the foam phenolplast was given .
苯与甲
在碱性条件下
、缩合制
可发性
树脂,该树脂和
面活性剂、发泡剂、固化剂一起发泡即
泡沫塑料。