乳化基质自然储存失稳机理研究Instability Mechanism of Emulsion Explosive Matrix Suffering Long-time Storage
王阳,汪旭光,陶铁军,王尹军,赵明生
摘要(Abstract):
为更有效研发高稳定性乳化基质,避免因乳胶基质失稳造成的生产和工程安全事故,务必深入研究乳化基质自然储存失稳机理。首先总结一般乳液的五大失稳机理:分层、絮凝、相反转、奥氏熟化和聚合,理论分析了乳化基质的失稳的机理可能为奥氏熟化和聚合。然后对制备的三种乳化基质进行自然储存和高低温循环实验,并使用激光粒度仪全程检测平均粒径变化。实验结果可知三种乳化基质的平均粒径都在±0.2μm范围内变化,属于仪器测试误差。则乳胶基质的平均粒径在老化过程中无变化,计算可知乳化基质不存在奥氏熟化和聚合过程。最后使用显微镜观测到乳化基质析晶的三个过程:晶核生成、晶体生长、晶体聚集。因此,乳化基质在自然储存老化过程中,不存在分层、絮凝、相反转、奥氏熟化和聚合,主要失稳机理是内相过饱和无机盐水溶液的析晶。
关键词(KeyWords): 乳化液;乳化炸药;失稳机理;析晶
基金项目(Foundation): 国家自然科学基金资助(批准号:50704005);; 中国工程院咨询项目(批准号:2016-XZ-09)
作者(Author): 王阳,汪旭光,陶铁军,王尹军,赵明生
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