CB和MMT改性的研究  

Research on the modification of CB and MMT

作　　者：何维娟[1] 邱祖民[1] 黄伟[1] 肖建军[1] HE Weijuan QIU Zumin HUANG Wei XIAO Jianjun(School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China)

机构地区：[1]南昌大学资源环境与化工学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2016年第3期212-218,共7页Journal of Nanchang University(Engineering & Technology)

基　　金：江西省自然科学基金资助项目(20122BAB203021)

摘　　要：探讨了复合改性法m(OA)∶m(Si69)对炭黑、m(Si69)∶m(CTAB)对蒙脱土之疏水性的改良,并借助疏水性测试、SEM、FTIR、XRD等分析测试手段对不同改性情况下的试样进行了表征。结果表明:对炭黑进行改性时,选用m(OA)∶m(Si69)=10∶10作为改性剂,于80℃下搅拌回流90 min,改性炭黑表现出最优疏水性,最小平均粒径;对蒙脱土进行改性时,选用m(Si69)∶m(CTAB)=20∶15作为改性剂时,改性蒙脱土粉体由亲水性变为疏水性,层间距由1.583 nm增至2.153 nm。In order to study hydrophobic properties of CB（ modified by the mixture of m（ OA） / m（ Si69） and MMT（ treated successively by CTAB and Si69）,samples of different treating methods were characterized with the aid of hydrophobic test,SEM,FTIR and XRD to determine the best modifying conditions. Results indicated that to optimize the hydrophobicity of modified CB and minimize its mean diameter,modifier should be m（ OA） ∶m（ Si69）= 10 ∶10,with a modifying condition of stirring and back-flow 90 min at 80 ℃. To MMT,modifier should be m（ Si69） ∶m（ CTAB） = 20∶15. In the meantime,modified MMT transformed from hydrophilic to hydrophobic,and increased its interlamellar spacing by 1. 583 nm to 2. 153 nm.

关 键 词：炭黑 蒙脱土 复合改性 疏水性 

分 类 号：TQ333.7[化学工程—橡胶工业]