摘要
利用差热分析、电子显微镜、X射线衍射、红外吸收光谱等手段测试分析了安徽凹凸棒粘土的理化性能 ,并利用NXS -11型旋转粘度计研究了凹凸棒粘土与膨润土对消失模涂料流变行为的影响 .结果表明 :安徽凹凸棒粘土是一种成分较纯的凹凸棒粘土 .凹凸棒粘土比膨润土更有利于改善消失模涂料的流变性 .消失模水基涂料中加入质量分数为 2 %的凹凸棒粘土可以使涂料的流变性大为提高 .自研的消失模涂料的流变曲线特征参数分别为 :τ0 =9.8Pa ,K =2 .9,m =0 .6 4。
The physicochemical properties of an attapulgite clay were studied by DTA, SEM, XRD and infrared adsorption spectrum. The effect of attapulgite clay and bentonite on lost foam casting (LFC) coating's rheological behaviors were studied by using NXS-11 model rotary viscosimeter. The results show that the attapulgite clay improves LFC coating rheologicl property better than the bentonite clay used. Addition of 2% in mass attapulgite clay into the LFC coating improves greatly the rheological property of LFC coating with the characteristic rheological parameters of τ 0=9.8 Pa, K =2.9, m =0.64.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2002年第1期81-85,共5页
Journal of The Chinese Ceramic Society
基金
教育部科学技术重大研究项目资助 ( 0 0 -0 13)
