广东工业大学学报 ›› 2010, Vol. 27 ›› Issue (4): 71-75.

• 综合研究 • 上一篇    下一篇

动态硫化EPDM/PP/HDPE热塑性弹性体结构与性能的研究

  

  1. 广东工业大学材料与能源学院高分子材料工程系,广东广州510006
  • 出版日期:2010-12-25 发布日期:2010-12-25
  • 作者简介:蒋鹏程(1981-),女,硕士研究生,主要研究方向为高分子聚合物合成及加工改性

Study of the Structure and Properties of Dynamically Vulcanizated EPD I/PP/HDPE Blends

  1. School of Materials and Energy,Guangdong University of Technology,Guangzhou 5 10006,China
  • Online:2010-12-25 Published:2010-12-25

摘要: 研究了三元乙丙橡胶(EPDM)/聚丙烯(PP)/高密度聚乙烯(HDPE)动态硫化热塑性弹性体(TPV)的力学性能、流变性能和热性能,并用扫描电镜(SEM)扫描其断面形貌.结果表明,随着HDPE的用量增加,TPV的拉伸强度和撕裂强度以及硬度有所下降;在流变性能测试中Ⅱ'V体系的最大扭矩逐渐增加到最大值,随后趋于稳定; rPV体系的热失重温度和分解温度与不含HDPE的TPV相比变化不大;扫描电镜图片显示体系中EPDM包裹HDPE的壳一核结构随HDPE用量的增加而增多.

关键词: 聚丙烯;高密度聚乙烯;三元乙丙橡胶;动态硫化;热塑性弹性体

Abstract: The mechanical properties,rheological properties and thermal properties of high density polyethylene (HDPE)/ethy1 ene propyl ene diene monomer(EPDM)/polypropylene(PP)blends were studied,and the microstructure of TPV was investigated by scanning electron microscope(SEM).Experimental results show that with the increase of HDPE,the tensile strength,tear strength and the shore A hardness of TPV decrease,that the maximum torque increases to the maximum before it gradually becomes stable during the rheologcal test,and that the thermo-gravimentric temperature and the decomposition temperature hardly change,compared with the TPV without HDPESEM analysis shows that the structure of HDPE shel1.core wrapped by EPDM increases with the increase of HDPE.

Key words: polypropylene;high density polyethlene;ethyl ene propyl ene diene monomer;dynamic vulcanization;thermoplastic elastomer

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