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http://dx.doi.org/10.5764/TCF.2021.33.3.147

Preparation and Drawing Property of Poly(vinyl alcohol) Film  

Kim, Hun Min (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Lee, Jungeon (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Park, Jae Min (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Park, Jae Hyeung (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Choi, Jin Hyun (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Yeum, Jeong Hyun (Department of Biofibers and Biomaterials Science, Kyungpook National University)
Publication Information
Textile Coloration and Finishing / v.33, no.3, 2021 , pp. 147-152 More about this Journal
Abstract
Bulk polymerization was used to produce poly(vinyl acetate) with different molecular weights, which were then saponified to prepare poly(vinyl alcohol) (PVA) with different molecular weights. With Pn of 2,060 and 3,240, the optimum film formation concentrations of PVA were found 7.5wt.% and 6.5wt.%, respectively. The drawing characteristics of the PVA film prepared at the optimum film formation concentrations were experimented, as well as the thermal characteristics of the PVA film based on the drawing ratio were observed. When the drawing velocity was fixed, it was found that the drawing ratios of all samples decreased as the heat band gap increased, and the melting temperature of the PVA film slightly increased as the drawing ratio increased regardless of the Pn of PVA.
Keywords
poly(vinyl alcohol); degree of polymerization; drawing; bulk polymerization; saponification;
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