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化学发泡法制备稳定胶态泡沫及超轻质Al2O3泡沫陶瓷
作者:张曙豪1 侯诗宇2  玉3  姝2 孟文清1 杨金龙1 2 
单位:(1. 河北工程大学土木工程学院 河北 邯郸 056038 2. 新型陶瓷与精细工艺国家重点实验室 北京 100084  3. 辽宁科技大学高温材料与镁资源工程学院 辽宁 鞍山 114051) 
关键词:泡沫陶瓷 氧化铝 过氧化氢 高气孔率 化学发泡法 
分类号:TQ174
出版年,卷(期):页码:2019,47(9):0-0
DOI:
摘要:

 利用过氧化氢(H2O2)和催化剂二氧化锰(MnO2)进行化学发泡,基于颗粒稳定泡沫技术,以表面活性剂十二烷基硫酸钠(SDS)为颗粒表面改性剂,用超低固相含量5%~10% (质量分数)的浆料制备了颗粒稳定泡沫。常温常压干燥后在1 430 ℃烧结2 h制备出闭孔结构的泡沫陶瓷,利用亚微米粉末为原料制备出一种可以与气凝胶相类似的多孔陶瓷材料,其气孔率为98.2%~99.0%。研究了固相含量、H2O2和MnO2加入量对泡沫陶瓷的稳定性影响以及发泡倍率、强度以及孔径与气孔率相互关系。

基金项目:
国家自然科学基金(51572140);文化和旅游部项目(20181140279)。
作者简介:
参考文献:

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