China Plastics ›› 2011, Vol. 25 ›› Issue (02): 47-51 .DOI: 10.19491/j.issn.1001-9278.2011.02.010
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FANG Jia-Mei
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Abstract: Crosslinked PE-LD was prepared through a two-step method: silane grafting and room temperature self-crosslinking. Both grafted and crosslinked PE-LD was studied using FTIR and differential scanning calorimeter. It was found that the crystallization behavior of PE-LD was greatly affected by the silane grafted reaction and self-crosslinking, the values of Avrami index of PE-LD was 2.52, while it increased to 3.8~6.0 when PE-LD was grafted or cross-linked. The values of Avrami index increased to the maximum and then decreased with increasing loading of initiator, while decreased with increasing loading of catalyst. Compared with neat PE-LD, the velocity constant of the crystallization of silane grafted PE-LD became higher, while that of cross-linked PE-LD became smaller.
Key words: low-density polyethylene, silane, grafting, self-crosslinking, crystallization kinetics
CLC Number:
O63
FANG Jia-Mei . Study on the Crystallization Kinetics of Self-crosslinking Low-density Polyethylene at Room Temperature[J]. China Plastics, 2011, 25(02): 47-51 .
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URL: https://www.plaschina.com.cn/EN/10.19491/j.issn.1001-9278.2011.02.010
https://www.plaschina.com.cn/EN/Y2011/V25/I02/47