超疏水性纳米碳酸钙的制备及在防水密封胶中的应用  

Preparation of Ultra-hydrophobicity Nano-calcium Carbonate and Its Application in Waterproofing Sealant

作　　者：林进超 杜年军 颜干才 Lin Jinchao;Du Nianjun;Yan Gancai(Lianzhou Keynes Nano Materials Co.,Ltd.,Lianzhou,Guangdong 513428,China)

机构地区：[1]连州市凯恩斯纳米材料有限公司

出　　处：《中国建筑防水》2020年第1期21-24,共4页China Building Waterproofing

摘　　要：采用含有活性氨基团的B-200助剂与硬脂酸钠复配作为表面处理剂对纳米碳酸钙进行活化处理,研究其在硅酮防水密封胶中的应用表现。实验结果表明,使用适量的B-200助剂与硬脂酸钠复配能提高硅酮胶的触变性、断裂伸长率和耐水性能;但是,当B-200助剂过量时,活化效果有所下降。Activation treatment of nano-calcium carbonate is conducted with surface treating agent built by B-200 assistants containing active amino group and sodium stearate to study its application in silicone waterproofing sealant. The results show the built-up of proper dosage of B-200 and sodium stearate can improve thixotropy of the sealant and elongation at break and water resistance as well. But effectiveness of activation will go down if over B-200 used.

关 键 词：纳米碳酸钙 硅酮胶 疏水性 

分 类 号：TU502[建筑科学—建筑技术科学] TU578