Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (11): 143-146.

• Materials Science & Technology • Previous Articles     Next Articles

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．

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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