产品说明与参数
Full Name & Product Positioning
Full Name: PANGAO VMA Carboxyl-Modified Vinyl Chloride-Vinyl Acetate-Maleic Acid Terpolymer Resin
Low molecular weight carboxyl-modified ternary VC-VAc copolymer industrial resin. The molecular chain contains carboxyl functional groups, providing corresponding balance of chemical resistance, solubility, transparency, film strength, and thermoplasticity, with prominent interlayer adhesion characteristics. Suitable for interlayer adhesion coatings, printing inks, solvent-based adhesives, and related formulations. Compared to VAM, VMA is more soluble in ketones, ethers, and other vinyl resin solvents.
Core Technical Parameters
Appearance
White free-flowing powder
Vinyl Chloride Content
~83-86 wt%
Vinyl Acetate Content
~13-16 wt%
Maleic Acid/Maleic Anhydride Content
~1 wt%
Carboxyl Functional Group Content
~1 wt%
K-Value
~38-42 (low molecular weight)
Average Molecular Weight
~19,000-22,000
Solid Content
100 wt%
Volatile Matter
≤1%
Core Advantages
1. Low molecular weight structure results in relatively low solution viscosity at equivalent solids, with relatively fast dissolution.
2. Molecular chain contains carboxyl functional groups, providing interlayer adhesion improvement for metal and plastic substrates.
3. Shows good solubility in ketone and ether solvents, with improved solubility compared to VAM.
4. Provides corresponding balance of chemical resistance, transparency, film strength, and thermoplasticity.
5. Compatible with various film-forming resins, suitable for interlayer coatings, inks, and adhesive formulations.
Main Application Areas
Core Applications: Interlayer adhesion coatings, printing inks, solvent-based adhesives
Suitable Areas: Metal primers, plastic paints, lamination inks, shoe adhesives, aluminum foil coatings, hot-stamping back adhesives
Not Recommended: Pure water-based systems, food contact products, high-hardness abrasion-resistant topcoat main resin, ultra-high molecular weight paste-type coatings.
