Choosing the appropriate binder is often the decisive factor in high-performance adhesive formulation. As end-user requirements become increasingly stringent—demanding higher line speeds, superior adhesion to difficult substrates, and stricter environmental compliance—vinyl acetate-ethylene (VAE) copolymer technology has established itself as a versatile benchmark across Asia-Pacific and global markets.
1.The Chemistry Behind VAE Copolymer Systems
VAE dispersions are water-based systems produced by copolymerizing vinyl acetate and ethylene monomers. Each monomer contributes distinct mechanical and physicochemical properties to the polymer backbone:
By altering the ethylene content during polymerization, the glass transition temperature (Tg) of VINNAPAS VAE dispersions can be precisely tuned across a broad spectrum, ranging from -35℃ to +30℃.
2. Key Technical Advantages in Processing & Performance
Formulating with VINNAPAS VAE emulsions delivers several key operational benefits:
3. Product Portfolio Comparison & Technical Data
The following reference guide highlights the most commonly specified VINNAPAS® grades in packaging, woodworking, pressure-sensitive, and film lamination applications:
| Product Model | Polymer Type | Solid Content (%) | Viscosity (mPa·s) | PH | Key Performance & Application Characteristics |
| VINNAPAS EP 701K | VAc-E | 55 | 2,000 - 4,000 | 4-6 | Universal binder for paper packaging. Outstanding performance in high-speed nozzle (HH) jetting, foil-to-paper, and film-to-wood lamination. |
| VINNAPAS EP 706K | VAc-E | 55 | 4,400 - 5,400 | 4-6 | High-viscosity version of EP 706. Offers strong wet tack, excellent nozzle jetting stability, and versatile film-to-wood lamination. |
| VINNAPAS EP 707K | VAc-E | 55 | 1,300 - 2,000 | 4-6 | Low viscosity combined with rapid setting speed and high flexibility. Demonstrates superior cohesion and water resistance. |
| VINNAPAS EP 724 | VAc-E | 55 | 1,500 - 2,500 | 4-6 | High tensile & cohesion strength and thermal resistance. Often blended with PVAc homopolymers to boost initial tack and speed. |
| VINNAPAS 320 | VAc-E | 55 | 800 - 2,000 | 4-6 | High-solid VAE delivering excellent flowability, rapid substrate wet-out, and strong adhesion to various rigid surfaces. |
| VINNAPAS EAF 68 | VAc-E-A | 58-62 | 4,500 - 9,500 | 4-5 | Acrylic-modified VAE pressure-sensitive emulsion. Engineered for high shear resistance and exceptional bonding on OPP, PET, and UV coatings. |
| VINNAPAS 6300 | VAc-E | 63 | 600 - 1,500 | 4.3-5.3 | High solids with carboxylic acid functionality. Offers versatile compounding flexibility, fast setting speed, and alkaline aqueous cleanability. |
| VINNAPAS DPN 15 | VAc | 52 | 12,000 - 18,000 | 2.2-3.5 | Benchmark binder for wood adhesives meeting D3/D4 water resistance standards. |
4. Formulation Selection Guide by End-Use Application
Packaging & High-Speed Jetting: VINNAPAS EP 701K, VINNAPAS EP 706K, and VINNAPAS 320 are industry standards for paper packaging, envelope converting, and non-contact nozzle applications.
Film Lamination & Plastic Substrates: VINNAPAS EAF 68 and VINNAPAS 6300 excel on non-polar or low-energy substrates including OPP, PET, and UV-coated surfaces.
Woodworking & Waterproof Adhesives: VINNAPAS DPN 15 and VINNAPAS EP 724 deliver high cohesion and heat/water resistance required for 3D membrane pressing and D3/D4 rated formulations.
Website: www.elephchem.com
whatsapp: (+)86 13851435272
E-mail: admin@elephchem.com
Jaringan IPv6 didukung
