VINNAPAS EP 7000

1. Application Background of VAE in Panel Lamination In furniture manufacturing, interior decoration, and functional panel processing, panel lamination is widely used to enhance surface aesthetics and performance. Common lamination materials include PVC film, decorative paper, wood veneer, and high-pressure decorative laminates (HPL). Different lamination materials place varying demands on adhesives in terms of initial tack, wet bond strength, heat resistance, and processing adaptability. VAE (vinyl acetate-ethylene copolymer) emulsions, due to their molecular structure combining polarity and flexibility, exhibit excellent overall performance in the field of panel lamination. In wet lamination processes, VAE can form a stable adhesive interface between porous substrates and non-porous lamination materials, making it particularly suitable for the lamination of PVC film with substrates such as medium-density fiberboard (MDF) and particleboard. From a processing perspective, VAE systems have high equipment compatibility and can be used with various application methods such as roller coating and knife coating. They also cure in a relatively short time, meeting the efficiency and stability requirements of continuous production lines. Therefore, VAE has become a mature water-based adhesive system for surface decoration lamination of panels.     2. Key Advantages of VINNAPAS VAE in Lamination Performance In panel lamination applications, the VINNAPAS VAE product series demonstrates several targeted advantages. First, in terms of adhesion to PVC film, these VAE emulsions typically exhibit high initial adhesion, quickly forming an effective bond under wet conditions, reducing process risks such as warping and slippage. This characteristic is particularly important for high-speed lamination lines.   Products Technical data Film-to-Wood lamination Solids content Viscosity, dynamic Glass transition temperature Adhesion Heat Resistance Setting Behavior Water Resistance VINNAPAS 920 54.0 - 56.0 % 800 - 2000 mPa·s approx. -20 °C Excellent Medium Medium High VINNAPAS EAF 68 58.0 - 61.0 % 4500 - 9500 mPa·s approx. -35 °C High Medium High Medium VINNAPAS EP 3588 62.5 - 64.0 % 200 - 800 mPa·s 2 - 8 °C High Medium High High VINNAPAS EP 6300 62.0 - 64.0 % 600 - 1500 mPa·s approx. 0 °C Excellent Medium High Medium VINNAPAS EP 6420 54.0 - 56.0 % 3500 - 5500 mPa·s approx. 2 °C High High High Medium VINNAPAS EP 645 54.0 - 56.0 % 4000 - 9000 mPa·s approx. 5 °C High Excellent High Medium VINNAPAS EP 656 54.0 - 56.0 % 4000 - 9000 mPa·s approx. 5 °C - - - - VINNAPAS EP 7000 69.5 - 71.5 % 1200 - 2700 mPa·s approx. -3 °C Excellent Excellent Excellent High VINNAPAS EP 701K 54.0 - 56.0 % 2000 - 4000 mPa·s approx. -10 °C Excellent Medium High High VINNAPAS EP 706 54.0 - 56.0 % 3500 - 4500 mPa·s approx. 0 °C High High High Medium VINNAPAS EP 709 54.0 - 56.0 % 2700 - 3700 mPa·s approx. 7 °C High High High Medium VINNAPAS EP 710 > 54.5 % 4400 - 5400 mPa·s approx. 0-4 °C High High High Medium VINNAPAS EP 724 54.0 - 56.0 % 1500 - 2500 mPa·s approx. 19 °C High High High Medium VINNAPAS EP 745 54.0 - 56.0 % 4000 - 9000 mPa·s approx. 5 °C - - - - VINNAPAS EP 756 54.5 - 56.5 % 600 - 2000 mPa·s approx. 0-4 °C High High High Medium VINNAPAS EP 760 59.5 - 61.5 % 2000 - 3000 mPa·s approx. 0 °C High High High Medium   Secondly, heat resistance and durability are crucial performance indicators for laminated panels in actual use. Through reasonable glass transition temperature (Tg) design, VAE emulsions maintain flexibility while ensuring heat resistance, preventing delamination or adhesive failure of laminated panels within a certain temperature range. This is of practical significance for products such as furniture and cabinets used in complex environments. In terms of substrate adaptability, VINNAPAS VAE exhibits good wetting and penetration capabilities on a variety of polar substrates. Whether applied to MDF, particleboard, or paper and wood veneer surfaces, it forms a stable adhesive film structure, contributing to improved overall strength and appearance consistency after lamination. Furthermore, fast curing speed is another important characteristic of this type of VAE product. The reasonable film-forming temperature and viscosity range allow it to quickly develop cohesive strength after pressing, shortening subsequent processing or stacking waiting times and increasing production speed. This advantage is particularly prominent in large-scale panel processing scenarios.   3. Typical Panel Lamination Applications and Selection Considerations At the application level, VINNAPAS VAE is widely used in various panel lamination structures. For example, in the lamination of PVC film and wood substrates, VAE provides reliable bonding strength while maintaining a flexible feel, suitable for products such as cabinet doors and furniture side panels. In the wet lamination of decorative paper and wood-based panels, the VAE system helps the paper to be fully wetted and adhere to the substrate surface, reducing bubbles and wrinkles and improving the stability of the decorative effect. These applications typically focus more on the rheological properties and open time of the adhesive to ensure a sufficient operating window. For lamination structures with higher performance requirements, such as HPM, VAE emulsion can be an important component of the system, achieving good heat resistance and interlayer bonding strength through coordination with process parameters. When selecting, it is usually necessary to comprehensively evaluate technical indicators such as solid content, viscosity, and Tg.   In actual use, the VAE product should also be selected specifically based on factors such as production line conditions, pressing temperature and time, and substrate absorbency. By reasonably matching the adhesive performance with process conditions, it is possible to improve overall production efficiency and product consistency while ensuring lamination quality.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com

In the field of paper packaging and post-processing, the performance stability of adhesives directly impacts production efficiency and product quality. With the increasing popularity of water-based systems in the packaging industry, VAE emulsions have gradually become the mainstream choice for cardboard boxes, paper cartons, and paper bags due to their excellent overall performance. The VINNAPAS series of VAE emulsions, through varying ethylene content and formulation designs, can cover a wide range of paper packaging applications.       1. Technical Characteristics and Core Advantages of VINNAPAS VAE Emulsions VINNAPAS VAE emulsion is a high-performance polymer dispersion whose molecular structure combines the advantages of vinyl acetate (providing cohesion and hardness) and ethylene monomers (providing flexibility and adhesion). This unique chemical structure gives it the following core technical advantages in paper packaging processing: Balanced performance: VAE emulsions achieve a good balance between adhesive strength, cohesion, and flexibility, ensuring stable bonding strength at different ambient temperatures. Excellent substrate adhesion: This series of products is not only suitable for traditional coated or uncoated paper and cardboard, but also has excellent wetting and adhesion to various "difficult-to-bond substrates" such as plastic films. Extremely fast curing speed: On high-speed automated production lines, curing speed directly affects productivity. WACKER VAE has a very high drying speed, which can meet the high-speed operation requirements of modern packaging equipment. Good wettability and low-temperature flexibility: Even in low-temperature environments, the VAE coating can maintain good flexibility, preventing the adhesive layer from becoming brittle, and has excellent penetration and spreading capabilities on the substrate surface.   2. Main Application Scenarios of WACKER VAE in Paper Packaging Processing Paper box and carton sealing: This is the most common application area for VAE emulsions. Whether it's simple folding cartons or load-bearing cardboard boxes, VINNAPAS provides sufficient initial tack and final strength to ensure that the packaging does not delaminate during transportation. Paper bags, document bags, and paper sacks: In paper bag manufacturing, bottom sealing and side bonding require adhesives with good workability and aging resistance. VAE emulsions (such as VINNAPAS EP 705 A) ensure the stability of seams in paper bags under load. Corrugated cardboard and paperboard: VAE emulsions are commonly used in the processing of high-performance corrugated cardboard, providing stronger bonding strength and moisture resistance than traditional starch adhesives. Lamination applications: In the lamination process of paper with plastic films (such as PE, PP, PET) or aluminum foil, VAE emulsions serve as the basis for high-performance adhesives, addressing the challenge of bonding non-polar surfaces. Folding carton processing: For high-end gift boxes, medicine boxes, and other folding cartons, VAE ensures that creases do not crack and exhibits excellent mechanical stability during the forming process.   3. Environmental Compliance and Food Safety Assurance Food contact safety: VINNAPAS VAE emulsions comply with the main relevant regulations for food contact materials and are suitable for manufacturing various food packaging adhesives. Low migration and no plasticizers: WACKER's technology allows for the formulation of adhesives without plasticizers, featuring low migration characteristics, significantly reducing the risk of packaging materials contaminating the food or pharmaceuticals inside. Sustainability: Some high-end models, such as VINNAPAS 920 and VINNAPAS EP 7000, do not use APEO (alkylphenol ethoxylates) in the production process and have extremely low formaldehyde content, fully complying with green and environmentally friendly production standards.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com

Adhesives are essential for almost every item we use in our daily lives, from furniture and flooring to packaging. Traditional adhesives, such as solvent-based glues and bone glue, have long dominated the market. However, with growing environmental awareness and technological advancements, a new adhesive, VAE Emulsion (Vinyl Acetate–ethylene Copolymer Emulsion), is gradually entering our market.     I. Introduction to VAE Emulsions Vinyl acetate and ethylene copolymer emulsions typically contain 0-30% vinyl groups. Ethylene acts as an internal plasticizer. A higher vinyl content results in a lower glass transition temperature, a softer resin, and greater flexibility. Ethylene also has low polarity and excellent water resistance. Previously, only polyvinyl acetate emulsions were available, but these had poor water resistance and flexibility, and also exhibited poor adhesion to non-polar or less polar materials such as polyethylene and polyvinyl chloride. VAE emulsions are used in wood glue, paper packaging adhesives, architectural coatings, mortar modification (e.g., waterproofing), and even plastic film lamination.   2. Advantages of VAE Emulsions in Architectural Coatings Low VOC Low-VOC latex paints using VAE emulsions (such as VAE Emulsion CW 40-600) provide a high-quality interior environment with excellent workability and good color development. In Europe, over 90% of zero-/low-VOC interior wall paints use VAE emulsions. VAE emulsions are the primary binder used in cigarette adhesives. Compared to acrylic emulsions, vinyl acetate emulsions contain fewer benzenes and aromatic hydrocarbons. Furthermore, they do not require the addition of coalescing agents. Acrylic emulsions, on the other hand, lack the ability to achieve both film-forming and scrub resistance, necessitating the addition of coalescing agents to ensure a high Tg. Vinyl acetate, on the other hand, is softened by water, eliminating the need for coalescing agents.   Weatherability The presence of vinyl monomers in VAE emulsions increases the polymer's hydrophobicity, resulting in excellent water resistance in the resulting coating. This is crucial for outdoor coatings, as it prevents rain from eroding the coating, leading to blistering, cracking, and flaking. Chalking Resistance: Chalking is the phenomenon of paint decomposing due to aging under the influence of ultraviolet light and oxygen, resulting in the formation of white powder on the surface. VAE emulsions have excellent chalking resistance, which helps the coating maintain its appearance and protective properties over time. Flexibility and Crack Resistance: VAE emulsion coatings exhibit excellent flexibility, adapting to the expansion and contraction of the substrate due to temperature fluctuations. This effectively prevents cracking caused by stress concentration in the coating, thereby extending the coating's service life. Adhesion: VAE emulsions (such as VAE Emulsion CW 40-602) exhibit excellent adhesion to a variety of substrates, including common building materials such as cement and bricks. Even in adverse weather conditions, the coating remains firmly attached to the wall and resists peeling.   Cost Advantages First, there is no need to purchase expensive solvents, reducing raw material costs. Second, its high solids content means that less material is required for the same bonding effect. More importantly, it reduces environmental remediation costs associated with hazardous emissions and potential safety risks. For businesses, choosing VAE emulsions is not only a positive response to environmental regulations but also a long-term, sustainable economic investment.   Strong Adhesion Used in Mortar Mixing: VAE emulsion, when added to mortar, increases strength, improves adhesion to various substrates, enhances wear and impact resistance, improves water absorption and permeability, and improves chemical resistance. This polymer mortar is currently widely used due to its excellent properties. Characteristics of Mortar Mixed with VAE Emulsion: When VAE is added to mortar, many properties are improved, as shown in Figure 1. However, the performance of the mortar varies depending on the amount of emulsion added. According to Sumitomo Corporation's research, a P/C (polymer weight/cement weight) ratio of 0.1-0.4 is the optimal ratio for both performance and economics. Increasing Mortar Strength: The fluidity (flow value) of mortar increases with the amount of emulsion added. This fact demonstrates that by adding emulsion, the amount of water can be reduced, resulting in a denser hardened material, increased strength, and reduced shrinkage and water absorption. Improving Mortar Brittleness: When VAE emulsion is mixed into the mortar, vibration-absorbing polymer particles fill the voids in the cement, improving the mortar's impact resistance.   3. Future Development Trends of VAE Emulsions Non-PVA Emulsifier Systems Using a surfactant system and soap-free polymerization technology eliminates the drawbacks of poor water resistance and large particle size caused by PVA's water resistance. Copolymer Systems Using versatate vinyl carbonate, it leverages its high weathering, water, and alkali resistance.   With the growing global focus on sustainable development and green manufacturing, the environmental and health issues associated with traditional adhesives are facing increasing challenges. As a high-performance, environmentally friendly, and versatile adhesive, VAE emulsions are experiencing rapidly growing market demand. Their applications are not only expanding in traditional wood processing, paper products, and textiles, but are also showing great potential in emerging areas such as automotive interiors, building materials, and battery bonding.   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com  

WACKER makes VINNAPAS VAE dispersions, which are polymer binders made from vinyl acetate-ethylene (VAE) copolymers. These binders help make many products work better and be more eco-friendly. WACKER is the top producer of VAE dispersions and redispersible polymer powders. You can find their products in lots of areas like coatings, tile adhesives, exterior thermal insulation systems, self-leveling screeds, interior plasters, paper coatings, and adhesives. What are VAE Copolymer Dispersions? These copolymers are created by mixing vinyl acetate, a hard monomer, with ethylene, a soft monomer, through emulsion polymerization. The ethylene adds flexibility to the VAE dispersions, so they don’t need extra plasticizers.   Great Rheological Properties VINNAPAS dispersions that use polyvinyl alcohol (PVOH) are easy to work with for many adhesive tasks, like paper and packaging (VINNAPAS 706 & VINNAPAS 710) . They’re good for different application methods too, such as roller and spray coating(VINNAPAS EP 705 A).   Reduced Migration The special makeup of the copolymer means that we don't need plasticizers or film-forming agents in products with VAE dispersions. This opens up many options for making low-migration adhesives.   Improved Workability Dispersions made with surfactants usually have better shear-thinning properties compared to those made with polyvinyl alcohol. This leads to better sticking to plastics, clearer films, more water resistance, and easier spraying, which makes it easier to work with floor adhesives. Plus, they can handle more fillers.   APEO Removal When making dispersions for adhesives, we don't need to use surfactants with APEOs (alkylphenol ethoxylates). So, VINNAPAS dispersions meet tougher environmental standards (such as VINNAPAS EP 7000).   Website: www.elephchem.com Whatsapp: (+)86 13851435272 E-mail: admin@elephchem.com