Properties of Polyvinyl Alcohol (PVAL)
Polyvinyl alcohol (PVAL) is a water-soluble synthetic polymer derived from the hydrolysis of polyvinyl acetate. Known for its film-forming, emulsifying, and adhesive properties, PVAL is commonly used in textiles, packaging, paper coatings, and pharmaceuticals.
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The following table provides a comprehensive list of polyvinyl alcohol (PVAL) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
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| Physical Properties | Metric |
|---|---|
| Category | Thermoplastic |
| Density | 1190 - 1310 kg/m3 |
| Thermal Properties | Metric |
| Melting Point | 200 °C |
| Thermal Conductivity | 0.795 W/m·K |
| Specific Heat Capacity (Cp) | 1.255 J/kg·K |
| Glass Transition Temperature (Tg) | 85 °C |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.