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 .

苯酚与甲在碱性条件下经、合制得发性酚，该和表面活性剂、发泡剂、固化剂一起发泡即得酚泡沫塑料。