Wacker VINNOL E 15/40 A VC/VAc Resin — Hydroxyl-Containing VC/Acrylate Copolymer for Anti-Corrosion Coatings, Printing Inks and Two-Component Crosslinking
Wacker VINNOL E 15/40 A VC/VAc Resin — Hydroxyl-Containing VC/Acrylate Copolymer for Anti-Corrosion Coatings, Printing Inks and Two-Component Crosslinking
Full name and product positioning
Product full name: Wacker VINNOL® E 15/40 A hydroxyl-containing vinyl chloride-acrylate copolymer resin (VC/VAc resin)
Wacker VINNOL® E 15/40 A is a copolymer of vinyl chloride and hydroxy-functional acrylate with free hydroxyl groups (approx. 1.8 wt%); it contains approx. 84 wt% vinyl chloride and approx. 16 wt% acrylate monomers. It is produced by emulsion polymerization and offers good pigment wetting. It can be used as a reactive binder and crosslinked with isocyanates, epoxy or amino resins in solvent-based coatings and printing inks.
Core technical parameters
|
Parameter |
Typical value / range |
|
Appearance / physical form |
White powder |
|
Chemical type |
Hydroxyl-containing vinyl chloride-acrylate copolymer (ternary / binary) |
|
Polymerization process |
Emulsion polymerization (E series) |
|
Vinyl chloride (VC) content |
84.0 ± 1.0 wt% |
|
Vinyl acetate (VAc) content |
None (—) |
|
Other monomers (hydroxy acrylate) |
Approx. 16.0 wt% |
|
Hydroxyl content |
1.8 ± 0.2 wt% (free hydroxyl) |
|
Chlorine content |
46.3 – 47.5 wt% |
|
K value |
39 ± 1 |
|
Average molecular weight Mw (SEC) |
40 – 50 × 10³ |
|
Solution viscosity (20% MEK, 20 °C) |
20 ± 5 mPa·s |
|
Flow time (ISO 2431, 4 mm cup) |
Approx. 22 s |
|
Particle size |
< 2.5 mm |
|
Glass transition temperature Tg (DSC) |
Approx. 69 °C |
|
Volatile content |
< 0.5 wt% |
|
Solubility |
Soluble in ketones, esters and similar solvents; good compatibility with alkyd / epoxy / amino / isocyanate resins |
|
FDA 175.300 food-contact compliance |
No |
|
Packaging |
Approx. 20 kg/bag |
Core advantages
· Contains approx. 1.8 wt% free hydroxyl groups and can be crosslinked with isocyanates, epoxy or amino resins to form films
· Emulsion polymerization process gives good pigment wetting and dispersion, suitable for pigmented coating systems
· Good adhesion to substrates such as plastics, metals and wood, helping to improve coating adhesion
· Films have good toughness, water resistance and chemical resistance, and resist aliphatic hydrocarbon media
· Good compatibility with a wide range of coating resins, which facilitates blending and performance adjustment
Main application areas
· Core applications: solvent-based anti-corrosion coatings, plastic / metal / wood coatings, gravure printing inks, pigment preparation, two-component adhesives
· Suitable areas: artificial leather coatings, coil coatings, inkjet printing, magnetic stripe coatings, crosslinkable reactive coating systems
· Not recommended: applications requiring FDA 175.300 food-contact certification; unmodified ambient-drying main film-forming systems for high-weatherability outdoor heavy-duty anti-corrosion service (blending validation required)