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 .
苯酚与甲醛在碱性件经加成、缩合制得可发性酚醛树脂,该树脂和面活性剂、发剂、固化剂一起发即得酚醛料。
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 .
苯酚与甲醛在碱性件经加成、缩合制得可发性酚醛树脂,该树脂和面活性剂、发剂、固化剂一起发即得酚醛料。
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