| 高密度聚乙烯与EPDM磺酸锌盐共混物结构与性能的研究 |
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| 引用本文： | 曾祥生 李惠林. 高密度聚乙烯与EPDM磺酸锌盐共混物结构与性能的研究[J]. 高等学校化学学报, 1992, 13(2): 274-277 |
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| 作者姓名： | 曾祥生 李惠林 |
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| 作者单位： | 成都科技大学高分子研究所，成都科技大学高分子研究所，成都科技大学高分子研究所 成都，610065，成都，610065，成都，610065 |
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| 摘 要： | 本文研究了高密度聚乙烯(HDPE)/EPDM磺酸锌盐(Zn-SEPDM)共混物的机械性能、流变行为、形态和相容性。结果表明:加入Zn-SEPDM可使HDPE的熔点和结晶度降低,熔程变窄。当Zn-SEPDM含量超过20％,共混物中Zn-SEPDM呈连续相,冲击强度突增。
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| 关 键 词： | 高密度 聚乙烯 EPDM 磺酸锌盐 |
A Study of Morphology and Properties of HDPE/Zinc-Neutralized Sulfonated EPDM Blends |
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| ZENG Xiang-sheng,LI Hui-lin,XU Xi. A Study of Morphology and Properties of HDPE/Zinc-Neutralized Sulfonated EPDM Blends[J]. Chemical Research In Chinese Universities, 1992, 13(2): 274-277 |
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| Authors: | ZENG Xiang-sheng LI Hui-lin XU Xi |
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| Abstract: | The compatibility of zinc-neutralized sulfonated EPDM(Zn-SEPDM) and its effect on crystallizing behavior of high density polyethylene (HOPE) as well as the morphology of the blend were studied via WAXD, DSC, TEM, SEM, a capillary rheometer and mechanical property tests. The results show that the addition of Zn-SEPDM makes both the melting point and the crystallizing temperature of HOPE decrease. As Zn-SEPDM content exceeded 20%, Zn-SEPDM in the blend became a continuous phase and an abrupt change in impact strength occurred therefrom. Owing to the incorporation of ionic groups into EPDM, the strong interactions between the chains make the impact strength of HDPE incredibly increased without sacrificing its tensile strength so much. |
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| Keywords: | High density polyethylene Zinc-neutralized sulfonate EPDM Physical cross-linking |
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