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 .
苯酚与甲醛在碱条件下经加成、缩合制得
酚醛树脂,该树脂和
面活
、
泡
、固
起
泡即得酚醛泡沫塑料。