Properties of Polyvinyl Acetate (PVA)
Polyvinyl acetate (PVA) is a versatile thermoplastic polymer widely used as an adhesive in woodworking, paper production, textiles, and crafts. Known for its strong bonding capabilities and stability, PVA plays a vital role in industrial and commercial applications.
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The following table provides a comprehensive list of polyvinyl acetate (PVA) 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 | 1191 kg/m3 |
| Water Absorption | 3.6 %wt/day |
| Mechanical Properties | Metric |
| Young’s Modulus (E) | 0.6 GPa |
| Thermal Properties | Metric |
| Melting Point | 60 °C |
| Thermal Conductivity | 0.159 W/m·K |
| Coefficient of Thermal Expansion (αL) | 10-4 - 2×10-4 1/°C |
| Glass Transition Temperature (Tg) | 29 °C |
| Electrical Properties | Metric |
| Relative Permittivity (@1 MHz) (εr) | 3.5 |
| Dielectric Field Strength (Ed) | 394 kV/cm |
| Optical Properties | Metric |
| Refractive Index (589 nm) | 1.4669 |
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.