RADIATION-INDUCED CROSSLINKING AND CHANGE OF THERMDYNAMIC PROPERTIES IN POLYETHYLENE SWOLLEN IN DECALIN AND TETRACHLORO-METHANE

Ha Hongfei

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RADIATION-INDUCED CROSSLINKING AND CHANGE OF THERMDYNAMIC PROPERTIES IN POLYETHYLENE SWOLLEN IN DECALIN AND TETRACHLORO-METHANE

更新时间：2023-04-23

- RADIATION-INDUCED CROSSLINKING AND CHANGE OF THERMDYNAMIC PROPERTIES IN POLYETHYLENE SWOLLEN IN DECALIN AND TETRACHLORO-METHANE
- Journal of Radiation Research and Radiation Processing Vol. 6, Issue 1, Pages: 38-43(1988)
- 作者机构：
  
  1.北京大学，北京
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Ha Hongfei. RADIATION-INDUCED CROSSLINKING AND CHANGE OF THERMDYNAMIC PROPERTIES IN POLYETHYLENE SWOLLEN IN DECALIN AND TETRACHLORO-METHANE. [J]. Journal of Radiation Research and Radiation Processing 6(1):38-43(1988)
DOI：

Ha Hongfei. RADIATION-INDUCED CROSSLINKING AND CHANGE OF THERMDYNAMIC PROPERTIES IN POLYETHYLENE SWOLLEN IN DECALIN AND TETRACHLORO-METHANE. [J]. Journal of Radiation Research and Radiation Processing 6(1):38-43(1988) DOI：

摘要

测定凝胶含量研究了在氮气氛下，溶胀在高密度聚乙烯（HDPE）与低密度聚乙烯（LDPE）中十氢化萘和四氯化碳分子对聚乙烯辐射交联的影响。结果表明，两种自由基辐解产额相差较大的有机分子对聚乙烯辐射交联有相近的抑制作用。初步讨论了这种抑制作用的机理。利用示差扫描量热技术（DSC）测定了在空气条件下，溶胀有十氢化萘或四氯化碳的HDPE的热性质（,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648899&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648892&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648891&type=,和,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648894&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648904&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648895&type=,），结果,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648905&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648907&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648906&type=,随剂量增加无大变化，,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648908&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648897&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42648909&type=,稍有下降，熔融吸热的双峰消失了。表明剂量不太大时，溶剂分子对聚合物自由基与氧的反应有保护作用。

Abstract

Radiation-induced crosslinking and change of thermodynamic properties in polyethylene swollen in decalin and CCl,4, at room temperature have been studied. There were marked decreases of crosslinking for the samples swollen in both solvent under irradiation in the absence of oxygen.,It is known that the first melting temperature of PE irradiated in air decreased with increasing absorbed dose and above 0.6 MGy bimodel endotherms were obtained for high density PE in DSC thermograph. It was found in this work that for the HDPE samples swollen in decalin and CCl,4, respectively after the same dose irradiation, the double peak disappeared. A possible mechanism was given.

关键词

聚乙烯溶胀辐射交联示差扫描量热技术（DSC）

Keywords

PolyethyleneRadiation-induced crosslinking SwollenDSC thermograph

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