Study of Mechanical Property and Cellular structure Based on the Controllable Crosslinking Polyethylene Foaming Materials

[摘要] In this paper, the controllable crosslinking polyethylene foaming materials were established though adding foaming agent additives zinc stearate firstly. Then, the density, expansion ratio, cellular structure, gel content and compression strength of crosslinking polyethylene foaming materials were studied by changing zinc stearate content. Furtherly, those properties were researched after added nucleating agent. Experimental results showed that zinc stearate could facilitate foaming reaction and broad foaming window. Density, compression strength and gel content was decreased with zinc stearate content increased, and the expansion ratio increased with zinc stearate content increased. In addition, the compression strength was improved and cellular structure became uniform after adding nucleating agent. Generally, this material not only has the controllable property, but also has the higher mechanical property and more uniform structure.

[发布机构] National Institute of Clean and Low-carbon Energy Technology, Advanced Materials Center, Beijing; 102211, China^1;Beijing University of Chemical and Technology, Materials Science and Engineering College, Beijing; 100029, China^2

[效力级别] 材料工程

[关键词] Cellular structure;Compression strength;Expansion ratio;Foaming reactions;Gel contents;Nucleating agents;Uniform structure;Zinc stearate