摘要
利用水基流延法,选用聚丙烯酸(PAA)为分散剂,聚乙烯醇(PVA)为粘结剂,聚乙二醇(PEG)为增塑剂,正丁醇为除泡剂,成功制备出了表面光滑、结构均匀、柔韧性良好的堇青石流延生带。当发现分散剂PAA含量为0.9%(wt)、粘结剂用量为7%～10%(wt),增塑剂的加入量为粘结剂用量的60%～90%,pH值为10左右时可以制备出稳定性良好、流动性适宜的堇青石流延浆料。然后对流延生带进行差热分析(DTA)和热重分析(TGA),在此基础上确定了流延生带的排胶温度为600℃,以及堇青石流延生带的烧结温度为1440℃,并在该温度保温70分钟的烧结条件下,获得了强度和致密度都较高的流延基片,其中烧结较好的流延基片的相对密度达96.14%。
The cordierite green tapes were fabricated successfully through aqueous tape casting with polyvinyl alcohol as binders, which had smooth surface, homogenous microstructure and good flexibility. It is concluded that appropriate cordierite suspensions for tape casting process with low viscosity and good stability can be prepared, in the condition that the contents of dispersants and binders were 0.9wt% and 7wt%-10wt%, respectively, the addition of plasticizer amount of binder of 60wt%-90wt% and the PH value a...
出处
《陶瓷学报》
CAS
北大核心
2009年第3期308-313,共6页
Journal of Ceramics
关键词
堇青石
水基流延
陶瓷基片
cordierite
aqueous tape casting
ceramic substrate
