Abstract
Based on rheologic test results, a new epoxy resin constitutive equation was proposed with mathematical justification. Every term and every coefficient in it have physical meaning, which clarifies the essence of viscoelasticity of resin materials. The proposed model indicates that the yield stress is one of the main causes for the shear-thinning effect and reveals why some materials possess double-Newtonian regions with the shear viscosity in the first region higher than that in the second region. The equation is of great value in research on the rheological properties of some polymers and the error analyses of some constitutive equations.
| Original language | English |
|---|---|
| Pages (from-to) | 32-35 |
| Number of pages | 4 |
| Journal | Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering |
| Volume | 22 |
| Issue number | 5 |
| State | Published - Sep 2006 |
Keywords
- Constitutive
- Epoxy resin
- Non-linear
- Rheologic
- Shear viscosity
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