物理成孔剂水洗工艺的改进

Improvement of Elution Technology of Physical Pore-foming Agent

将表面活性剂引入到硅橡胶泡沫成孔剂的水洗工艺中,结果表明,加入非离子表面活性剂能有效提高尿成孔剂的水洗速率,当非离子表面活性剂OP-10的质量分数为0.3%,水洗温度为60℃,换水频率为1/3 h-1,样品与OP-10水溶液的质量比为1∶10时,水洗56 h后,成孔剂基本上全部溶出。

Added the surfactant into the elution technology of pore - forming agent, from silicone rubber foam. The study indicated that using non- ionic surfactant can increase the elution rate of pore -forming agent efficiently. The best elution technology obtained by experiments was 1 ： 10, 0. 3%, 1/3 h-1 and 60 ℃ for the mass ratio of sample to OP -10 aqueous solution, OP - 10 contents, frequency of renewing water and elution temperature, respectively. Under the conditions, pore - forming agent was eluted completely after 56 h.