摘要
用自制的丙烯酸甲酯-丙烯酸氨聚合物作A l2O3纳米陶瓷的分散剂和粘结剂,料浆最大固溶含量（质量分数）达60%.通过对纳米A l2O3分散后的料浆的粘度、ζ电位等性能进行分析测试,确定分散剂的最佳使用条件：在弱碱性或中性条件下,使用量为干燥粉体的0.15~0.3%.此种纯纳米三氧化二铝陶瓷的煅烧温度为1 630~1 650℃,保温1h,且分散剂略能增加陶瓷的烧结密度.利用热重分析测试,此分散剂在230~580℃下完全排烧.
Self-made dispersant that synthesised by methacrylate and acrylic polymer for Al2O3 Nano-Ceramic is used,so that the maximum solid solution content of slurry（mass fraction） can be up to 60%.Through the measurement on the viscosity,ζ potential,and other performance,the best using condition of dispersantshall be obtained as followed：the dispersant shall be used under alkaline or neutral conditions,and the mass of which shoud be 0.15%～0.3% of drying powders.The sintering temperature of such pure nano-Al2O3 ceramic is 1630~1650 ℃ and the Insulation time is 1h.Also the dispersan could increase the sintering density of the ceramic.Through TG analysis test,the dispersant will fully Volatile at 230～580 ℃.
出处
《辽宁大学学报（自然科学版）》
CAS
2010年第3期258-261,共4页
Journal of Liaoning University：Natural Sciences Edition
基金
辽宁省教育厅一般项目(2008269)
