N2-filled hollow glass beads as novel gas carriers for microcellular polyethylene

被引：0
|
作者：
Dong, Lijie [1 ,2 ]
Huang, Jing [1 ]
Li, Rui [1 ]
Zhang, Yi. [1 ]
Pan, Minxuan [1 ]
Xiong, Chuanxi [1 ]
机构：
[1] School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
[2] Max-Planck Institute for Polymer Research, Mainz 55128, Germany
来源：
Journal of Applied Polymer Science | 2009年 / 114卷 / 06期
关键词：
N2-filled hollow glass beads (HGB) were first used as novel gas carriers to prepare microcellular polymers by compression molding. Dicumyl peroxide was acted as crosslink agent to control the produced microcellular structure of low density polyethylene (LDPE)/HGB. The effect of temperature; pressure and the content of gel on the embryo-foaming; and final-foaming structure are investigated. Scanning electronic microscopy shows that the average cell size of microcellular LDPE ranges from 0.1 to 10 μm; and the foam density is about 109-1011 cells/cm3. A clear correlation is established between preserving desirable micromorphologies of microcellular LDPE in different processing stage and tuning processing factors. The pertinent foaming mechanism of microcellular materials foamed with HGB is proposed. Because of the good mechanical strength; low density; weak waterabsorption; and excellent heat insulate ability; microcellular LDPE has great potential application in energy building materials. © 2009 Wiley Periodicals; Inc. J Appl Polym Sci 114: 4030-4035; 2009;
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摘要：
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页码：4030 / 4035
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