Mechanical and Conductive Properties of Carbon Black-filled High-density Polyethylene, Low-density Polyethylene, and Linear Low-density Polyethylene
Mechanical and Conductive Properties of Carbon Black-filled High-density Polyethylene, Low-density Polyethylene, and Linear Low-density Polyethylene
复制标题
炭黑填充高密度聚乙烯、低密度聚乙烯和线性低密度聚乙烯的机械和导电性能
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Dongyang Wu
中科院分区：
文献类型：
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作者：
Qiang Yuan;S. Bateman;Dongyang Wu
采用单螺杆挤出机熔融复合法，分别以炭黑（CB）填充高密度聚乙烯（HDPE）、低密度聚乙烯（LDPE）和线性低密度聚乙烯（LLDPE）制备了高导电复合材料。由2wt%CB（Printex）与HDPE（HDPE 3690）组成的复合材料实现了低逾渗阈值。CB/LDPE和CB/LLDPE复合材料的冲击强度比CB/HDPE 3690高近20倍。导电复合材料的拉伸模量和强度随着炭黑含量的增加而增加。利用扫描电镜和透射电镜对复合材料的微观结构进行了分析。在2wt%的CB含量下，CB颗粒已经构建了导电网络，这导致高导电性。
High conductive composites were manufactured using single screw extruder melt compound method with carbon black (CB)-filled high-density polyethylene (HDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE). A low percolation threshold value was achieved from the composites consisting of 2 wt% CB (Printex) with HDPE (HDPE3690). The impact strength of CB/LDPE and CB/LLDPE composites were almost 20 times higher than that of CB/HDPE3690. The tensile modulus and strength of conductive composites increased with the content of CB. Microstructures of conductive composites were analyzed using scanning electron microscope and transmission electron microscope. At the 2 wt% CB content, the CB particles have built a conductive network, which lead to high conductivity.