期刊
MACROMOLECULAR RESEARCH
卷 17, 期 12, 页码 950-955出版社
POLYMER SOC KOREA
DOI: 10.1007/BF03218641
关键词
decrosslinking; thermoplasticization; crosslinked polyethylene foam; supercritical methanol; theology
资金
- Hybrid Materials Research Center of Korea Institute of Science and Technology (KIST)
- Ministry of Science and Technology, South Korea
The physical and theological properties of thermoplasticized irradiation-crosslinked polyethylene foam using supercritical methanol treatment were investigated by GPC, FTIR, DSC, WAXS, DMTA and UDS. The polyethylene foam was selectively decrosslinked into thermoplasticized polyethylene in an appropriate supercritical methanol condition without any undesirable side reactions such as oxidation and disproportionation. The thermoplasticization was promoted with increasing reaction temperature to reach completion above 380 degrees C. The supercritical reaction condition affected the crystallization behavior, and mechanical and rheological properties of the decrosslinked polyethylene foam, but not its crystallographic structure or crystallinity.
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