Nadkarni, V. M. ; Jog, J. P. (1987) Interrelationship between the crystallization behavior, injection molding conditions, and morphology of poly (ethylene terephthalate)/poly (methyl methacrylate) alloys Polymer Engineering & Science, 27 (6). pp. 451-457. ISSN 0032-3888
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pen.760...
Related URL: http://dx.doi.org/10.1002/pen.760270610
Abstract
The thermal and isothermal crystallization behavior of PET/PMMA (poly(ethylene terephthalate)/poly(methyl methacrylate)) alloys was investigated. The crystallization of PET is accelerated significantly by alloying with PMMA. As a result, crystalline specimens could be injection molded with the alloy at low mold temperatures of 19°, 55° and 90°C., whereas a mold temperature of about 130°C is normally required for crystallinity to develop in the virgin PET grade. The impact strength of the alloy specimens increased significantly with decreasing mold temperature despite a comparable degree of crystallinity. The increase in impact strength is correlated to the reduction in the crystallite size and broadening of the crystal size distribution with decreasing mold temperature.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Society of Plastics Engineers. |
| ID Code: | 22599 |
| Deposited On: | 24 Nov 2010 08:11 |
| Last Modified: | 08 Jun 2011 06:24 |
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