综述了聚甲基丙烯酰亚胺(PMI)泡沫的性能、制备和运用.PMI 泡沫耐高温、高比强度、高比模量、具有很宽的高频稳定性、100%闭孔,非常适合于制备泡沫夹心结构.配方技术、分子结构控制技术是 PMI泡沫制备的关键技术.泡沫配方与主原料(甲基丙烯睛和甲基丙烯酸)、引发剂、发泡剂、交联剂、阻燃剂和其他添加剂有关,其种类和用量需要通过试验仔细选择.阐述了反应原理.二步法工艺即低温预聚合和高温发泡,适合于PMI泡沫的制备.预期了未来的发展方向.
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