The preparation of ADC foaming agent from biurea by dioxygen catalytic oxidation was investigated and discussed.
对用分子氧催化氧化联二脲制取ADC泡剂进行了探。
The preparation of ADC foaming agent from biurea by dioxygen catalytic oxidation was investigated and discussed.
对用分子氧催化氧化联二脲制取ADC泡剂进行了探。
The best foaming condition is happened by adding 7% PYA resin and 4% foaming agent.
结果显示聚七烯醇树脂浓度为7%及泡剂添加比例为4%时具有最佳泡结构。
The purpose of this paper is to study the radar absorbing effect of foamglass with graphite as vesicant.
本文的目的是究石墨作泡剂的泡沫玻璃的微波吸收特。
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,该树脂和表面活剂、泡剂、固化剂一起泡即得酚醛泡沫塑料。
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