【摘要】 苯酚与甲醛在碱性条件下经加成、缩合制得可发性酚醛树脂，该树脂和表面活性剂、发泡剂、固化剂一起发泡即得酚醛泡沫塑料。实验确定了适宜的合成工艺及发泡工艺条件、产品性能。更多还原

【Abstract】 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 .Suitable technical conditions of synthesis and foaming, and properties of the product were determined experimentally.更多还原