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
加成、缩合制得可发性
树脂,该树脂和表面活性
、发泡
、固化
一起发泡即得
泡沫塑料。