摘要
采用提高发泡温度、降低酸用量的方法,制备出低酸性酚醛泡沫。实验结果表明,在发泡温度为90℃,吐温-80用量为5%、石油醚用量为5%、固化剂用量为6%的条件下,制得的酚醛泡沫其性能与常规发泡工艺的相近,泡沫闭孔率大于80%,p H值大于4。
A low-acid phenolic foam was prepared by improving the foaming temperature and reducing the amount of acid.The results showed that when the foaming temperature was 90 ℃,the mass fraction of the surfactant Tween-80 was 5 percent,theblowing agent petroleum aether was 5 percent,and the curing agent was 6 percent,the performance of the low-acid phenolic foamwas similar with the common phenolic foam,the closed cell rate of the foam was high than 80 percent and pH value of the foamwas more than 4.
出处
《新型建筑材料》
2014年第10期75-77,88,共4页
New Building Materials
关键词
酚醛泡沫
发泡温度
黏度
水含量
固化剂
闭孔率
PH值
phenolic foam
foaming temperature
viscosity
water content
curing agent
closed cell rate
pH value
