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首页> 外文期刊>Journal of Applied Polymer Science >THERMALLY RECOVERABLE CROSSLINKED POLYETHYLENE
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THERMALLY RECOVERABLE CROSSLINKED POLYETHYLENE

机译：热可回收的交联聚乙烯

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The thermal recovery of the stored stress in crosslinked polyethylene has been commercially exploited in the preparation of heat shrinkable materials. The study on thermally recoverable crosslinked polyethylene compositions is reported in this paper. Thermally recoverable compositions were prepared by crosslinking of four grades of polyethylenes in air using gamma-rays from a Co-60 source. The effect of the irradiation dose on the gel fraction and radiation dose to gelation is studied. The effect of the melt index (MI) and the density of the polyethylene on the gel fraction, radiation dose to gelation, and recovery percentage of the stored stress is also studied. It is observed that the gel fraction is higher in case of the lower MI material and that rate of recovery is higher at higher temperatures. The rate of recovery of the stored stress is higher in case of the 100 kGy irradiated sample. (C) 1997 John Wiley & Sons, Inc. [References: 10]
机译：交联聚乙烯中储存应力的热恢复已在商业上用于制备热收缩材料。本文报道了热可回收交联聚乙烯组合物的研究。通过使用来自Co-60来源的伽马射线在空气中将四种聚乙烯进行交联来制备可热回收的组合物。研究了辐照剂量对凝胶分数和辐照剂量对凝胶化的影响。还研究了熔体指数（MI）和聚乙烯密度对凝胶分数，辐射剂量到凝胶化以及存储应力的恢复百分比的影响。观察到，在较低MI材料的情况下，凝胶分数较高，并且在较高温度下回收率较高。在100 kGy辐照样品的情况下，存储应力的恢复率更高。 （C）1997 John Wiley＆Sons，Inc. [参考：10]

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