白云母粉的表面改性及应用研究  

Study of Muscovite Surface Modification and Application

作　　者：管俊芳[1,2] 程飞飞[1] 胡林强[1] 张帆[1] 李小帆[1] 张凌燕[1,2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]矿物资源加工与环境湖北省重点实验室,湖北武汉430070

出　　处：《非金属矿》2014年第6期26-28,32,共4页Non-Metallic Mines

基　　金：中央高校基本科研业务费专项资金(145208004)

摘　　要：以白云母粉为研究对象,系统研究了白云母粉表面改性的药剂制度和工艺,通过填充天然橡胶/丁苯橡胶中的力学性能评价表面改性效果。结果表明,白云母粉适宜的表面改性条件为:改性剂WD-60用量1.5%,活化剂聚乙二醇(PEG)6000用量2.0%,活化剂十六烷基三甲基溴化铵(CTAB)用量1.0%,稀释剂乙醇用量1.0%,硬脂酸用量2.0%,改性温度100℃,改性时间20 min。在此条件下制备的白云母/天然橡胶(NR)/丁苯橡胶(SBR)复合材料的抗拉强度、300%定伸应力、断裂伸长率、撕裂强度和硬度分别为14.82 MPa、2.35 MPa、614.32%、18.76 MPa和56 HA,各项力学性能均达到充气轮胎、力车轮胎、农业轮胎垫带和软质鞋底鞋跟的国标要求。The paper systematically researched the surface modification agent systems and processes of muscovite powder, and evaluated the modification effect by the mechanical properties of muscovite/NR/SBR composite. The results showed that the suitable surface modification condition of muscovite powder was modifier WD-60 dosage 1.5%, activator PEG6000 2.0%, activator CTAB 1.0%, thinner ethanol 1.0%, stearic 2.0%, modified temperature 100 ℃, modified time 20 min. And under this condition, the tensile strength, 300% modulus, elongation at break, tear strength and hardness of the muscovite/NR/SBR composite respectively reached 14.82 MPa, 2.35 MPa, 614.32%, 18.76 MPa and 56 HA, which all met the inter-national standards for pneumatic tires, car tires, agricultural tires cushion belt and soft sole heel.

关 键 词：白云母 表面改性 NR/SBR 力学性能 

分 类 号：TD977[矿业工程—选矿]