Industrial grade polyvinyl acetate (PVAC) is a thermoplastic homopolymer resin, widely used in composite materials, adhesives and polylactic acid (PLA) and other fields. Nitchen Group made PVAC can compete with global suppliers in quality.

1.  Technical Parameters

(1). Appearance: transparent granules or beads
(2). Weight loss on drying: ＜ 1%
(3). Molecular weight (SEC): 10,000-1,200,000 g/mol
(4). Viscosity (mpa. S): 1.20-260.0 mPa.s  (ASTMD445-06, 10% ethyl acetate solution 20℃)
(5). Softening point ℃: 85-230
(6). Glass transition temperature ℃: 33-45

2. Classic Items and Typical Application

'Please contact us for detailed datasheet and applications of the polyvinyl acetate

 

3. Applications

(1). Composite materials: SMC, BMC, pultrusion process, low profile and low shrinkage additive (LPA).

(2). Adhesives: solvent-based adhesives, coatings, hot-melt adhesives, soundproof panels, structural adhesives, toy foam adhesives, etc.

(3). polylactic acid (PLA) solubilizing and toughening modifier: biodegradable plastic field (attached with detailed instructions)

(4). Film forming agent: polyvinyl acetate alcoholysis polyvinyl alcohol.

(5). Others: water treatment membrane materials and components, military photographic film, etc.

4. Solubility and compatibility of PVAC

(1). Solubility: soluble solvent and monomer

Methyl (ethyl, propyl, butyl, amyl) acetate, (propyl, butyl, cyclohexane) ketone, styrene, di (tri) chloromethane, trichloroethylene, methyl methacrylate, methanol, ethanol (94%), isopropanol (90%), n-butanol, tetrahydrofuran, unsaturated resin, vinyl ester resin, epoxy resin, etc.

(2). Compatibility: compatible plasticizer

Plasticizer is added to PVAC resin to improve flexibility and viscosity, reduce heat sealing temperature and enhance water resistance. Coatings and adhesives containing PVAC resin usually need only a small amount of plasticizer to improve flexibility. Higher plasticizer content (20% or more) will greatly reduce the softening point and heat resistance of the adhesive, and improve the surface viscosity of the adhesive and coating containing PVAC.

(3). Recommended plasticizers for PVAC

Dibenzoate: diethylene glycol dibenzoate or dipropylene glycol dibenzoate,

Polymer plasticizer: polyadipate

Glyceryl triacetate

5、 Use and storage

(1). When using, the product should be carefully added to the solvent system to ensure the dispersion and suspension of polymer particles. Avoid agglomeration and caking, resulting in difficulty in dissolution.

(2). In order to prevent polymer particles from sticking, the product should be stored at a temperature lower than 20℃ under dry conditions to avoid direct sunlight,.