Experimental and numerical investigation of warpage of semicrystalline polymers in rotational molding
Polymer Engineering and Science, ISSN: 0032-3888, Vol: 45, Issue: 7, Page: 945-952
2005
- 14Citations
- 20Captures
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Article Description
Warpage of various semicrystalline polyethylenes (linear low density polyethylene [LLDPE]) has been investigated under typical rotational molding conditions, which means slow cooling from only one side. We have developed an experimental technique that is able to quickly rate different materials with respect to warpage under typical process conditions. We have also developed a numerical model simulating the experiments assuming a thermoelastic material including crystallization. As has been observed in practical rotational molding, it has been found in both experiments and simulations that materials with high crystallinity have in general higher warpage. The simulations also showed that the crystallization kinetics has implications on the warpage because the crystallinity gradient during solidification depends on the rate of crystallization. © 2005 Society of Plastics Engineers.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=23844436939&origin=inward; http://dx.doi.org/10.1002/pen.20348; https://onlinelibrary.wiley.com/doi/10.1002/pen.20348; https://onlinelibrary.wiley.com/doi/full/10.1002/pen.20348; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpen.20348; https://dx.doi.org/10.1002/pen.20348
Wiley
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