有机改性凹凸棒石的性能表征及应用研究  

Properties and application research on organic modified palygorskite

作　　者：彭书传[1] 陈冬[1] 张晓辉[1] 宋磊[1] 陈天虎[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2010年第11期1690-1693,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家863高技术研究发展计划资助项目(007AA06Z118)

摘　　要：凹凸棒石黏土经过添加分散剂并进行机械搅拌、超声和离心处理后得到提纯,采用硅烷偶联剂(Si69)对凹凸棒石进行表面有机改性;测定了改性凹凸棒石的膨胀倍,通过FT-IR、TOC和分散性试验对改性前后的凹凸棒石进行表征;将得到的改性凹凸棒石应用到橡胶补强中,并对橡胶的力学性能进行了测试,结果表明,改性后的凹凸棒石具有明显的疏水性,并且提高了橡胶的力学性能。Raw palygorsgite clay was purified by way of mechanical stirring with dispersant as well as ultrasonic and centrifuging treatment.Then organic surface modification of nano-palygorskite with silane coupling agent Si69 was studied.Swelling volume of modified palygorskite was measured and FT-IR,TOC and dispersion experiment were made in order to study the properties of palygorskite before and after modification.The modified palygorskite was applied to reinforced rubber and the mechanical properties of the rubber were tested.The results show that the modified palygorskite has high hydrophobicity,and the mechanical properties of rubber is improved.

关 键 词：凹凸棒石 有机表面改性 硅烷偶联剂 补强橡胶 

分 类 号：TB321[一般工业技术—材料科学与工程]