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| Basic
Properties |
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Basic Properties
of PVA
| Item |
Properties |
| Appearance |
granule of power |
| Color |
white-slightly yellowish |
| Speclfic gravlty |
1.27-1.31 |
| Speclfic Heat |
1.68J(g k) |
| Glass transition |
85 /58 |
| Melting point |
230 /180 |
| Crystallinity |
0-0.54 |
| Coefficent of linear thermal
expansion |
7-12x10-5 -1 |
| Refractive index |
1.55 |
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