Effect of Irradiation on Crystallinity and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene

Yong ZHAO Yun Xia LUO Bing Zheng JIANG

引用本文: Yong ZHAO,  Yun Xia LUO,  Bing Zheng JIANG. Effect of Irradiation on Crystallinity and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene[J]. Chinese Chemical Letters, 1993, 4(7): 627-630. shu
Citation:  Yong ZHAO,  Yun Xia LUO,  Bing Zheng JIANG. Effect of Irradiation on Crystallinity and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene[J]. Chinese Chemical Letters, 1993, 4(7): 627-630. shu

Effect of Irradiation on Crystallinity and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene

  • 基金项目:

    This project has been supported by the National Natural Science Foundation of China.

摘要: Ultrahigh-molecular-weight polyethylene (UHlMWPE) has been irradiated (0-40 Mrad) with a Co60 source at room temperature under vacuum.Their crystallinity has been investigated by DSC and SAXS A significant increase of heat of fusion can be seen at low irradiation doses, which is attributed to crystallization caused by chain scission during the process of irradiation.It is also observed that thickness of lamellae changes with irradiation dose.Young's modulus has been improved significantly after irradiation at low doses.

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  • 收稿日期:  1992-12-21
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