VINNAPAS EAF 68

  1.Glue for paper packaging and cardboard: efficient bonding, environmentally friendly and safe VAE adhesives suitable for cardboard packaging, film-sheet lamination, paper tube/honeycomb sponge molding, as well as envelope making and book binding. This product line has some great technical benefits. It offers strong bonding and good heat resistance for different materials, including engineering plastics like PET and PS. Plus, it cures quickly, which can help boost production efficiency. Its formula system combines diversity and safety. It not only meets the regulatory requirements of food contact materials, but also has excellent spraying suitability, ensuring stable and uniform sizing effects during high-speed production, while keeping the equipment clean and reducing maintenance frequency. Recommended products: VINNAPAS EP 706K, EP 707K; VINNAPAS EAF 67, EAF 68     2. Woodworking glue: high strength, low formaldehyde VAE adhesives are really flexible when it comes to wood processing. They are great for things like furniture, wood floors, plywood, and doors and windows.This adhesive has excellent water resistance and heat resistance, fast curing speed, and adopts innovative DPX technology to achieve a hardener-free formula. At the same time, the formaldehyde content is controlled below 5ppm, effectively solving the yellowing problem. Its excellent overall performance is particularly suitable for impregnated paper or PVC veneer. In addition, VAE adhesives can ensure that the surface of the product reaches a very high degree of flatness, and support the addition of medium to high proportions of PUD (polyurethane dispersion), providing professional and efficient bonding solutions for various wood processing needs. Recommended products: EP 706K, EP 707K, VINNAPAS EP 645     3. Textile laminating adhesive: strong and water-resistant, cost-optimized The application of VAE adhesives in the textile industry covers the efficient lamination of cloth and sponge, artificial leather and PVC veneer, providing a variety of product options, covering a wide range of needs from high viscosity to low viscosity, and can provide high solid content formulas. Its excellent water resistance and excellent wet peel strength ensure a strong and lasting bonding effect.Plus, they require less thickening agent, plasticizer, and solvent, which means you can save on costs. Most importantly, VAE has excellent compatibility with materials such as natural latex, acrylic emulsion, polyurethane emulsion and styrene-butadiene latex, making it more cost-effective in various applications. Recommended products: EP 706K, VINNAPAS EP 708, EP 645     4. Tobacco glue: high-speed production, ultra-low residue VAE emulsions are really useful in the tobacco industry, especially for various types of adhesives like cigarette glues (including overlapping, nozzle, and packaging glues) and special adhesives for fast packaging machines. One of their main benefits is that they have very low levels of formaldehyde (less than 15 ppm) and residual vinyl acetate (under 100 ppm), which meets strict health and safety rules. There’s a full range of formulas available, from low to high viscosity, and they offer options with high solid content to suit different production needs. Recommended products: VINNAPAS EP 710, VINNAPAS 756   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com

VAE (ethylene-vinyl acetate copolymer) emulsion viscosity is an important quality indicator and has a significant impact on product mass transfer, heat transfer, fluid flow, emulsion stability and emulsion transportation. Monomer ratio, polymerization temperature, initiator, emulsifier system optimization, electrolyte additives, and storage conditions are all factors that affect the viscosity of VAE emulsion( VAE DA 128).   1. Monomer ratio The selection and proportion of monomers directly affect the viscosity and other properties of VAE emulsion. The ratio of ethylene to vinyl acetate (VAc) is particularly critical. Generally speaking, VAE emulsions with a VAc content of 70% to 95% have higher viscosity. Increased VAc content will increase the flexibility and elasticity of the emulsion, and will also increase the viscosity of the emulsion.   2.Polymerization temperature control Polymerization temperature is another important factor affecting the viscosity of VAE emulsion. Changes in temperature will affect the rate of free radical generation and the rate of polymerization. Generally speaking, within a suitable temperature range, an increase in temperature will speed up the polymerization reaction, causing the latex particles in the emulsion to grow rapidly, resulting in an increase in viscosity. However, too high a temperature may cause the emulsion to gel, affecting its quality and stability.   3.Initiator The amount and type of initiator have a significant impact on the viscosity of VAE emulsions. Initiators mainly affect the rate of polymerization. When the amount of initiator is large, the polymerization reaction is fast, the number of generated latex particles increases, and the viscosity of the emulsion increases. However, excessive initiator may cause the reaction to be too fast and difficult to control, resulting in reduced emulsion performance. Different types of initiators generate different types of free radicals during the reaction and have different effects on the viscosity of the emulsion.   4. Emulsifier system optimization The selection and dosage of emulsifier are crucial to the stability and viscosity of VAE emulsion. The main function of emulsifier is to reduce the surface tension of emulsion and promote monomer dispersion and emulsion formation. Appropriate emulsifier concentration and anionic/nonionic emulsifier ratio can improve the stability of the emulsion and also affect the viscosity of the emulsion. The degree of polymerization and alcoholysis of protective colloids such as PVA (polyvinyl alcohol) also significantly affect the viscosity of the emulsion. The higher the degree of polymerization of PVA, the greater the viscosity of the emulsion; the higher the degree of alcoholysis, the lower the viscosity of the emulsion.   5.Electrolyte additives The addition of electrolyte additives can affect the viscosity and stability of VAE emulsions. Some electrolyte additives can compress the electric double layer of latex particles and reduce the electrostatic repulsion between latex particles, thereby increasing the viscosity of the emulsion. However, excessive amounts of electrolyte additives may cause aggregation in the emulsion, affecting its performance.   The factors that affect the viscosity of VAE emulsions include reaction time and rate, PH value, storage conditions and stability. In actual production and application, these factors need to be reasonably adjusted according to specific needs and conditions to obtain VAE emulsion products with excellent performance.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com ElephChem Holding Limited, professional market expert in Polyvinyl Alcohol(PVA) and Vinyl Acetate–ethylene Copolymer Emulsion(VAE) with strong recognition and excellent plant facilities of international standards.