华南理工大学学报(自然科学版) ›› 2008, Vol. 36 ›› Issue (11): 143-146.

• 材料科学与技术 • 上一篇    下一篇

无机粒子填充聚合物复合材料的储能模量及其表征

梁基照   

  1. 华南理工大学 机械与汽车工程学院, 广东 广州 510640
  • 收稿日期:2007-11-28 修回日期:2008-05-09 出版日期:2008-11-25 发布日期:2008-11-25
  • 通信作者: 梁基照(1953-),男,教授,博士生导师,主要从事聚合物材料加工与性能表征的研究. E-mail:liangjz@scut.edu.cn
  • 作者简介:梁基照(1953-),男,教授,博士生导师,主要从事聚合物材料加工与性能表征的研究.

Storage Modulus and its Characterization of Inorganic Particulate-Filled Polymer Composites

Liang Ji-zhao   

  1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-11-28 Revised:2008-05-09 Online:2008-11-25 Published:2008-11-25
  • Contact: 梁基照(1953-),男,教授,博士生导师,主要从事聚合物材料加工与性能表征的研究. E-mail:liangjz@scut.edu.cn
  • About author:梁基照(1953-),男,教授,博士生导师,主要从事聚合物材料加工与性能表征的研究.

摘要: 储能模量是衡量聚合物材料刚性及弹性的一个重要指标。文中首先讨论了无机粒子填充聚合物复合材料储能模量的影响因素,并对其进行定量表征;然后应用DuPont动态力学分析仪,在温度-150~100℃下测量了玻璃微珠填充低密度聚乙烯(LDPE/GB)复合材料的动态力学性能;最后应用文中提出的储能模量公式分别估算了LDPE/GB和文献报道的氢氧化铝填充三元乙丙胶(EPDM/A1(OH)3)于实验奈件下的相对储能模量,并与已有的储能模量公式的计算值进行比较.结果表明,文中提出的公式的预测值与实测数据较为吻合.

关键词: 聚合物, 无机粒子, 填充复合材料, 储能模量

Abstract:

This paper deals with the storage modulus, an important index to evaluate the rigidity and elasticity of polymer composite. In the investigation, first, the factors affecting the storage modulus of inorganic particulate-filled polymer composites were discussed and quantitatively characterized. Next, the dynamic mechanical properties of glass bead-filled low-densitypolyethylene composites (LDPE/GB) were measured using a DuPont dynamic mechanical analyzer at -150 -100 ℃. Then, the relative storage moduli of LDPE/GB and Al(OH) 3-filled ethylene-propylene-diene mischpolymere composites (EPDM/AI(OH) 3 ) reported in the literature were estimated based on the equation proposed in this paper. The results were finally compared with those obtained from some other existing equations. It is demonstrated that the predicted results accord with the measured ones, meaning that the proposed equation is feasible.

Key words: polymer, inorganic particle, filled composite material, storage modulus