摘要
以水性环氧树脂为凝胶体系,研究了氧化铝空心球陶瓷浆料的流变性能,考察了水性环氧树脂溶液含量、固化温度对水性环氧树脂溶液和不同固相含量氧化铝空心球陶瓷浆料凝胶过程的影响。结果表明:在同一温度下,随水性环氧树脂溶液质量分数的增加,凝胶时间缩短,当水性环氧树脂含量从15.4%(质量分数)增加到28.8%时,溶液凝胶时间从99.3min缩短至38.2min;固化温度升高后,溶液凝胶时间明显缩短,从20℃时的125.3min下降到50℃时的5.8min。以水性环氧树脂为凝胶体系的氧化铝空心球浆料也存在上述规律,随浆料固相含量增加,凝胶时间缩短。以水性环氧树脂为凝胶体系成功制备出氧化铝空心球多孔陶瓷。
The rheological behavior of suspension with alumina hollow spheres and aqueous epoxy resin as a gelling agent was investigated.The influences of aqueous epoxy resin content,curing temperature as well as the solid loading of the suspension on the performace of gel process were analyzed.The results show that the gel time decreases with the increase of mass fraction of aqueous epoxy resin at the same temperature.When the mass fraction of aqueous epoxy resin increases from 15.4% to28.8%,the gel time decreases from 99.3to 38.2min.When the curing temperature increases from 20 to 50℃,the gel time of solution reduces from 125.3to 5.8min.The gel time also decreases with the increase of solid loading.The ceramic with alumina hollow sphere could be prepared when aqueous epoxy resin is used as a gelling agent.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2014年第9期1099-1104,共6页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(51172120)
国家高技术研究发展计划(2010AA03A408)资助项目
关键词
氧化铝空心球
多孔陶瓷
水性环氧树脂
凝胶注模
凝胶点
alumina hollow spheres
porous ceramics
water soluble epoxy resin
gelcasting
gel point
