| Autor: |
Yang, Chi-Tai, Lee, Kevin.L., Lee, S.T. |
| Předmět: |
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| Zdroj: |
Journal of Cellular Plastics; Mar2002, Vol. 38 Issue 2, p113, 16p |
| Abstrakt: |
The thickness change of extruded low density polyethylene (LDPE) foam as a function of the blowing agent and air counter diffusion during the post-extrusion aging process is modeled. The blowing agent and air counter diffusion equations are coupled with the viscoelastic equations to model the foam volume shrinkage and recovery processes in a closed-cell LDPE foam. The variables studied include polymer elastic and viscous constants, foam sheet thickness, cell count and foam density. The mathematical model is also compared with experimental data. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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