Sin, Lee Tin and Wan Abdul Rahman, Wan Aizan and Rahmat, Abdul Razak and Bee, Soo Tueen and Tee, Tiam Ting and Low, Chong Yu (2012) Measurement and simple equation models of the specific heats of neat and glycerol-plasticized poly(vinyl alcohol). Journal of Vinyl and Additive Technology, 18 (3). pp. 198-203. ISSN 1083-5601
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Official URL: http://dx.doi.org/10.1002/vnl.20304
Abstract
The specific heats (Csp) of neat and glycerol-plasticized poly(vinyl alcohol) (PVOH) were studied by differential scanning calorimetry at 330530 K. Glycerol-plasticized poly(vinyl alcohol) was prepared by a melt-blending method. The outcomes were modeled into mathematical functions. Incorporation of glycerol increased the specific heat of PVOH. Glycerol provided internal lubrication to the PVOH system, giving a smoother and lower-amplitude melting curve. As a result, glycerol-plasticized PVOH had a lower melting-temperature range than neat PVOH. However, higher energy was required to increase the temperature of glycerol-plasticized PVOH. The modeling functions showed a best fits regression range of 0.9670.999. Neat PVOH and glycerol-plasticized PVOH required 1166.05 J/g and 2113.09 J/g, respectively, to increase the temperature from 330 to 530 K. J. VINYL ADDIT. TECHNOL., 18:198203, 2012. (c) 2012 Society of Plastics Engineers
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Melting, Specific heat |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 32888 |
| Deposited By: | Fazli Masari |
| Deposited On: | 23 Jul 2013 08:27 |
| Last Modified: | 30 Nov 2018 06:31 |
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