纳米粒子在PC/SEBS-g-MA复合材料中的选择性分布及对热性能的影响  

Selective Localization of Nanoparticles in PC/SEBS-g-MA Composites and Their Thermal Properties

作　　者：肖超[1,2,3] 冷鑫钰 王慧[1,2,3] 陈林 张献[1,3] 刘岗 郑康[1,3] 田兴友[1,3] 

机构地区：[1]中国科学院合肥物质科学研究院应用技术研究所,安徽合肥230088 [2]中国科学技术大学科学岛分院,安徽合肥230026 [3]中国科学院新型薄膜太阳电池重点实验室,安徽合肥230031

出　　处：《高分子材料科学与工程》2017年第9期90-93,100,共5页Polymer Materials Science & Engineering

摘　　要：通过熔融混合实现多壁碳纳米管(MWCNT)和纳米氮化铝(Al N)分别在聚碳酸酯(PC)和SEBS-g-MA两相中的选择性分布,构建了新型四元网络结构。扫描电镜和透射电镜测试证实2种填料没有互相迁移;热分析表明MWCNT和Al N的协同作用使得复合材料热稳定性得到大幅提高,导热网络更加完善,复合材料的导热系数较纯的PC/SEBS-g-MA复合材料大幅提高,达到纯PC/SEBS-g-MA复合材料的2.6倍。Multiwall carbon nanotubes （MWCNT） and aluminum nitride （AlN） were selectively dispersed in polycarbonate （PC） and SEBS-g-MA, respectively, by melt blending and a new four element network structure was constructed. SEM and TEM results confirm that there is no mutual migration for those two kinds of fillers. Thermal analysis indicates that the thermal stability of the composite is significantly improved due to the synergistic effect of MWCNT and AlN nanoparticles. With the forming of more perfect thermal conductive network, the thermal conductivity of the composite is also increased as 2.6 times higher than that of PC/SEBS-g-MA composite.

关 键 词：复合填料 选择性分布 相分离 复合材料 导热性 

分 类 号：TB383[一般工业技术—材料科学与工程]