高等学校化学研究 ›› 2010, Vol. 26 ›› Issue (1): 142-147.
Linear Dynamic Viscoelastic Response of Melts for Crosslinkable Polyethylene Insulation Cable Granules During Cross-linking
YANG Hong-mei1,2*, YANG Yong-zhu1, HE Xiao1, ZHENG Qiang1,2 and ZHOU Hou-qiang3
- 1. Department of Polymer Science and Engineering,
2. Key Laboratory of Macromolecular Synthesis and Functionalization, Ministry of Education, Zhejiang University, Hangzhou 310027, P. R. China;
3. Ningbo Dongfang Cable Ltd., Ningbo 315040, P. R. China
Linear Dynamic Viscoelastic Response of Melts for Crosslinkable Polyethylene Insulation Cable Granules During Cross-linking
YANG Hong-mei1,2*, YANG Yong-zhu1, HE Xiao1, ZHENG Qiang1,2 and ZHOU Hou-qiang3
- 1. Department of Polymer Science and Engineering,
2. Key Laboratory of Macromolecular Synthesis and Functionalization, Ministry of Education, Zhejiang University, Hangzhou 310027, P. R. China;
3. Ningbo Dongfang Cable Ltd., Ningbo 315040, P. R. China
摘要：
Two commercial crosslinkable polyethylene insulation cable granules, designed for 110 and 35 kV voltage insulation, with similar crosslinking temperature but different melting temperature, were chosen as experimental samples for examining their linear dynamic responses during cross-linking. It has been found that the gel contents of cable compounds for 110 and 35 kV insulation are almost the same after they have been cross-linked at the same temperature, pressure and time. And the sample melts show the similar dependence of the dynamic storage modulus, G´, on strain. On the other hand, the dynamic temperature ramp test and the dynamic time sweep test indicate that the samples exhibit different dynamic viscoelastic responses during their crosslinking. An expression for describing their crosslinking process was proposed via probing rheokinetics of crosslinking for the two samples .