摘要
研究了 p H值对 Fe-Al-Mg型混合金属氢氧化物 /钠质蒙脱土 (简称 MMH/MT)悬浮体触变性的影响 .发现 p H值能影响其触变性类型 :m (MMH) /m(MT) (下文中以 R表示 )较低时 (0 ,0 .0 1 3和 0 .0 5 1 ) ,随着p H增高 ,体系有由负触变性 -复合触变性 -正触变性转变的趋势 ;而 R较高的体系 (R=0 .0 91 ) ,随 p H的增高 ,体系由复合触变性向负触变性转化 .探讨了各种触变性产生的原因和 p
In this paper, we studied the influence of pH on the thixotropy of MMH/MT suspension, and it was found that pH could affect the type of thixotropy: when the mass ratio of MMH to MT(\%R\%) was relatively low(0, 0.012 and 0.051), with pH rising slowly, the suspension changed from negative thixotropy to complex thixotropy, then finally to positive thixotropy; when \%m\%(MMH)/\{\%m\%(MT)\} was relatively high(0.091), with pH rising gradually, the suspension changed from complex thixotropy to negative thixotropy. The mechanism of thixotropy is also discussed.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第9期1763-1766,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 9873 0 2 6)
教育部重点实验室访问学者基金
骨干教师基金资助