Nitchen New Material Technology (Taizhou) Co., Ltd

The Polyvinyl acetate, PVAC, is a rubbery synthetic polymer with the formula (C4H6O2)n. It belongs to the polyvinyl esters family with the general formula -[RCOOCHCH2]-. It is a type of thermoplastic. It's known as vinyl acetate homo polymer acetic acid ethenyl ester homopolymer.
The degree of polymerization of polyvinyl acetate typically is 100 to 5000. The ester groups of the polyvinyl acetate are sensitive for alkali and will slowly convert PVAC into polyvinyl alcohol and acetic acid.
Under alkaline conditions, boron compounds, such as boric acid or borax causes the polymer to cross-link forming tackified precipitates or slime
Viscosity (10%, 20C): 1.0-260.0mPa.s
Molecular: 10,000 to 1,200,000
Soften Point: 58-220 C.
Free Acid (CH3COOH): ≤ 0.05%.
Volatilizer: ≤ 1.0%.
Lead (Pb): ≤ 1.0mg/kg.
Arsenic(As): ≤ 3.0mg/kg.
Heavy metal: ≤ 10mg/kg

Physical Performance
Status: Solid, Apparent granule
Density: 1.19g/cubic cm (25C)
Refractive Index: 1.467(20C),
Vitrification temperature: 30-40 degree
Thermal Deformation: 50 degree
Pulling Stress: 34Mpa
Permittivity: (103HZ) 1.15
Water Absording: 2%-5%
Boiling Point: 71.8-73 degree

Solubility: Soluble in methanol, ketones, esters, aromatics, chlorinated hydrocarbons, insoluble in ethanol, higher alcohols, alkanes, cyclohexane, water, etc.

Stability: Stable in sunshine and under 125℃, darkens at 150℃, deforms at 225℃, release acetic acid and brown resinous insoluble matter.