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The modified polyvinyl alcohol coated composite film is colorless and has good transparency. It has excellent oil resistance and organic solvent resistance. It has good antistatic properties. It can be used for microwave heating and metal detection of packaged food. It has excellent aroma preservation performance, which can maintain the original flavor of the food in the bag for a long time, and at the same time effectively prevent the odor outside the packaging material from entering the packaging bag.   It has excellent barrier properties for oxygen, nitrogen, hydrogen and carbon dioxide. Its oxygen barrier performance is better than that of PVDC coated film and EVOH five-layer co-extruded film. Its oxygen barrier performance is the best among various resin films, comparable to aluminum foil, glass, aluminum oxide-plated film and silicon oxide-plated film.   The production cost of PVA coated composite film is much lower than that of paper-aluminum-plastic composite and aluminum-plastic composite packaging materials, much lower than that of EVOH five-layer co-extruded film, and lower than that of composite film with PVDC coating.   Satisfactory results can be achieved by using the existing dry laminating machines, coating machines, wet laminating machines, extrusion laminating machines and other equipment of various flexible packaging manufacturers. The modified PVA glue does not form a skin, and the viscosity does not increase significantly during normal use. The coating layer is very thin, but the thickness uniformity of the coating remains excellent.   The structural components of polyvinyl alcohol (PVA) high barrier water-based coating liquid are carbon, oxygen, hydrogen and silicon. It is degradable and recyclable. When burned, it only produces carbon dioxide and water without producing other substances harmful to the environment and human health. It is pollution-free and is an ideal environmentally friendly high barrier packaging material.   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.  

Vinyl acetate-ethylene copolymer (VAE) emulsion is the abbreviation of vinyl acetate-ethylene copolymer emulsion. It is a polymer emulsion formed by copolymerizing vinyl acetate and ethylene monomers with other auxiliary materials through emulsion polymerization.   White latex is a water-soluble adhesive, a thermoplastic adhesive produced by polymerization of vinyl acetate monomer under the action of an initiator. Usually called white latex or PVAC emulsion for short, the chemical name is polyvinyl acetate adhesive, which is synthesized from acetic acid and ethylene to vinyl acetate, with the addition of titanium dioxide (low-grade ones add light calcium, talc, and other powders). It is then made by emulsion polymerization. A thick milky white liquid.   VAE emulsion has the advantages of permanent softness, water resistance, low temperature resistance, fast bonding speed, high bonding strength, and is safe and non-toxic. VAE emulsion is widely used in adhesives, exterior wall insulation, building waterproofing, coatings, composite packaging materials, building cement mortar modification, non-woven fabric manufacturing, paper coating and general adhesive for various polar and non-polar materials. Access and other fields.   The characteristics of white latex include normal temperature curing, fast curing, high bonding strength, good toughness and durability of the bonding layer and not easy to age. White latex is a widely used water-soluble adhesive. It is mainly used in wood bonding, construction industry, coatings, etc. It is also used in furniture assembly, surface repair, etc.   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.

Modification of inorganic cementitious materials such as cement with polymer emulsion has been widely used. Since the water in the emulsion will immediately react with the cement after mixing the two and finally solidify, a two-component form is used in most cases. , measure and mix each component in proportion at the construction site. This brings inconvenience to the storage, transportation and construction of materials. The emergence of re-dispersible emulsion powder has changed the above phenomenon. Redispersible latex powder is a micron-sized thermoplastic resin powder obtained by spray-drying a polymer emulsion to remove water. It can be reduced to an emulsion after adding water.Due to this characteristic, it is widely used in single-component JS waterproof coatings, polystyrene board bonding mortars for building insulation, flexible surface protection mortars, polystyrene particle insulation coatings, ceramic tile adhesives, self-leveling mortars, dry-mix mortars, etc. It is widely used in fields that require modification of inorganic cementitious materials.   RDP is a polymer powder produced by spray drying of polymer emulsion. Polymer emulsions are mostly oil-in-water systems in which thermoplastic polymers with a solid content of about 50% are evenly distributed in water with fine particles (0.1-10 μm). After losing water, the polymer particles first form dense spheres and accumulate on the surface. Under the action of energy, discrete polymer particles form a continuous polymer body. To produce redispersible latex powder by the spray drying method, a layer of PVA protective film is added to the surface of the polymer in advance. Due to the existence of the protective film, the dry powders cannot merge. In order to prevent the rubber powder from agglomerating, some fine mineral powders are also added. , such as clay, etc. However, when redispersible latex powder is mixed with alkaline substances such as cement and water, the PVA will be saponified and adsorbed by the quartz in the sand and removed. The rubber powder that has lost its protective film can eventually form a continuous water-insoluble polymer. membrane.   The particle size of the rubber powder (5-250 μm) is much larger than the particle size of the polymer dispersed phase in the emulsion (0.1-10 μm), indicating that the latex particles will agglomerate during the spray drying process. In order to reduce the tendency of polymer powder to agglomerate during long-term storage, inert fluid materials such as clay, talc, silica and other fine particles are usually added to the dry powder as anti-stick fillers. The filler is determined according to the type of polymer and its glass transition temperature. The dosage is generally 8%-30% of the dry polymer powder, which is the main source of ash in redispersible latex powder. After redispersible latex powder is redispersed, the diameter of the latex particles becomes about (0.1-10μm).   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.

Polyvinyl alcohol, an organic polymer. The molecular formula of polyvinyl alcohol is (C₂H₄O), the degree of polymerization is usually 500 to 5000, and the molecular weight is usually 25000 to 300000. Polyvinyl alcohol at room temperature is a colorless, white or milky white amorphous powder, odorless and tasteless, but it decomposes Can produce irritating smoke and dust.   The physical properties of polyvinyl alcohol change with the degree of polymerization and alcoholysis. Generally, the density range is 1.19-1.31g/cm³, the melting point is 212-267°C, and the boiling point under standard atmospheric pressure is about 340°C. Polyvinyl alcohol is soluble in hot water, insoluble in gasoline, benzyl alcohol ketone and other general organic solvents, soluble in hot hydroxyl organic solvents (such as glycol, glycerin, phenol, etc.), and soluble in liquid at room temperature. Ammonia and dimethyl sulfoxide.   The chemical structure of polyvinyl alcohol is stable, but alcohol-related reactions can also occur based on its molecular structure. For example, polyvinyl alcohol can undergo esterification reactions with inorganic complexes and organic compounds, and acetalization reactions with various aldehydes.   Polyvinyl alcohol is produced differently from other polymers and cannot rely on the polymerization of single unit precursor monomers. Industrially, polyvinyl acetate is usually produced by polymerizing vinyl acetate, and then polyvinyl alcohol is produced by alcoholysis under alkaline conditions.   Polyvinyl alcohol has unique properties such as strong adhesion, film flexibility and smoothness, and is widely used in fiber manufacturing(0588, 1788, 2099, 2499, 2699), papermaking(2099, 1799), textile(1788, 2488, 2299), construction(0588, 1788, 2088, 2488), film or sponge(1788, 1799, 2088, 2099) and binder(0588, 1788, 2088, 2488),etc. many other fields.   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.

High-strength and high-modulus polyvinyl alcohol fiber, as a high-performance fiber product with excellent mechanical properties, biocompatibility and non-toxicity, has shown strong development momentum in the Chinese market in recent years. And driven by factors such as technological innovation, growing market demand, and increasing environmental awareness, the industry will continue to maintain rapid development.   The raw materials of high-strength and high-modulus PVA mainly include basic chemical raw materials such as coal, acetic acid, and vinyl acetate. These raw materials undergo a series of chemical reactions and are converted into preliminary products of polyvinyl alcohol (PVA), providing basic materials for the production of high-strength and high-modulus PVA.   The company uses upstream raw materials and uses specific spinning processes and drawing technologies to produce PVA fibers with excellent properties such as high strength and high modulus. This process requires advanced production equipment and technical support to ensure product quality and stability.   High-strength and high-modulus PVA fibers are widely used in many downstream industries, including building reinforcement materials, composite materials, textile industry (such as bulletproof vests, high-strength ropes, etc.), medical fields (such as surgical sutures, drug sustained-release carriers, etc.) and Environmental protection fields (such as water treatment, soil improvement, etc.). The needs and changes in the downstream market directly drive the development of the high-strength and high-module PVA industry.   The application of high-strength and high-modulus PVA fiber in the field of building materials is particularly prominent. It is mainly used to replace asbestos to enhance the strength and anti-cracking properties of cement products. Simply adding 0.3% to 0.5% of high-strength and high-modulus polyvinyl alcohol fiber and a small amount of polymer to substrates such as cement and gypsum can effectively change the brittleness of the substrate and eliminate cracks.   In textile, papermaking, coating and other fields, high-strength and high-modulus PVA fiber also plays an important role. In the field of textiles, it can be used as an auxiliary agent such as spinning fluid and textile slurry; in the field of papermaking, it is often used for surface coating, adhesion and paper strength improvement; in the field of coatings, it can enhance the adhesion of coatings and durability.   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.

High degree of polymerization PVA has excellent strength and durability due to its high degree of polymerization, and is an important raw material for preparing high-strength materials. High degree of polymerization is generally above 5000.   1. High-strength adhesive: High-polymerized PVA can be used to prepare high-strength glues that can firmly bond various materials and are widely used in construction, automobiles, electronics and other fields. For example, in the construction field, PVA adhesives are used to bond ceramic tiles, stone, wood and other materials, showing good durability and water resistance.   2. Film materials: High-polymerization PVA can also prepare transparent film materials. These film materials have excellent tensile strength, crack resistance and air barrier properties, and are suitable for textiles, food packaging and other fields. For example, film materials made of high-polymerized PVA are widely used in the packaging of high-end textiles because they are non-static, oil-resistant, and resistant to organic chemicals.   3. Special functional materials: Due to its unique properties, ultra-high molecular PVA is often used to prepare materials with special functions. For example, in the field of biomedicine, ultra-high molecular PVA can be used as artificial blood vessels, biomedical materials, etc. Because of its good biocompatibility and mechanical properties, it can effectively replace or assist human tissue.   4. Advanced coating materials: Ultra-high molecular PVA can also be used to prepare advanced coating materials. These materials have excellent wear resistance, scratch resistance, chemical corrosion resistance and other properties, and are widely used on the surfaces of key components in automobiles, aerospace and other fields. coating.   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.  

Low degree of polymerization PVA has good water solubility and plasticity due to its lower degree of polymerization and shorter molecular chain. These properties make low-polymerization PVA widely used in many fields. The degree of polymerization of PVA is generally below 1000.   1. Water-soluble adhesive: Low-polymerized PVA is often used as a water-soluble adhesive because of its excellent water solubility. For example, in the paper products industry, low-polymerized PVA is used for cardboard lamination, corrugated cardboard bonding, and office glue. It also has the advantage of being safe and non-toxic, making it widely used in the packaging industry, such as the bonding of kraft paper bags for heavy objects such as cement, fertilizers, and grain.   2. Coatings and coating materials: Low-polymer PVA can be used as a coating material on the surface of paper, which can significantly improve the gloss and anti-permeability of the paper. In addition, it can also be used as a pigment processing agent to improve the whiteness and gloss of coated paper and enhance the printing effect.   3. Commonly used low-polymerization polyvinyl alcohols such as PVA 05-88. This grade of PVA is also used for medical devices, warp sizing, release agents, etc.   Medium degree of polymerization PVA has a moderate degree of polymerization and exhibits good strength and heat resistance, so it is suitable for occasions that require a certain degree of strength and durability. The degree of polymerization of PVA is between 1000 and 5000.   1. Textile enhancer: Medium-polymerized PVA is commonly used as a textile enhancer in the textile industry. By adding it to textiles, it can significantly improve the softness and wear resistance of textiles, thereby extending their service life. For example, by blending medium-polymerized PVA with cotton, wool, viscose fiber, etc., you can produce Vinyl textiles with excellent properties.   2. Fiber products: Medium-polymerized PVA can also be used as a raw material for fiber products, such as PVA fiber (vinylon) that has been dissolved, spun and acetalized, and is widely used in clothing, tarpaulins, cords, fishing net ropes, etc.   3. Commonly used polyvinyl alcohols with medium polymerization degrees include PVA 17-88, 20-88, 24-88, 26-88 etc. These can also be used to produce glues, paper adhesives, fabric finishing agents, PVA films, etc     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.

Polyvinyl alcohol is obtained through the alcoholysis of polyvinyl acetate. Its degree of alcoholysis refers to the percentage of the number of vinyl alcohol units in the molecular chain to the total number of molecular structural units. The degree of polymerization of polyvinyl alcohol refers to the number of repeating units in the molecular chain, which directly affects the length and physical properties of the molecule. The different degrees of polymerization determine the different application fields and properties of polyvinyl alcohol. For example, polyvinyl alcohol with an ultra-high degree of polymerization is often used in applications requiring greater strength and durability, while polyvinyl alcohol with a lower degree of polymerization may be more suitable for applications requiring better solubility or flexibility.   For example: According to the chemical formula of polyvinyl alcohol (-C2H2O-)n, PVA 2488, -88 means that the degree of alcoholysis is 88mol%, and 24- means that its degree of polymerization is about 2400, so the ideal molecular formula of PVA2488 should be (-C2H2O-) 2400. The adjustment is approximately 2400*44=105600. Therefore, one is to measure the size of the formed skeleton, and the other is to measure the conversion rate into the desired product. Those two are different.     Polyvinyl alcohol (PVA) is the hydrolyzate of polyvinyl acetate. The solvent of PVA is water, but its solubility in water is largely affected by the degree of polymerization and is dominated by the degree of alcoholysis. Completely alcoholylated PVA has very little dissolution in water. When the alcoholysis degree is below 88%, it is almost completely dissolved at room temperature of 20°C. However, as the alcoholysis degree increases, the solubility decreases significantly. Solubility PVA is soluble in water. The higher the water temperature, the greater the solubility, but it is almost insoluble in organic solvents.   PVA solubility changes with the degree of alcoholysis and polymerization. .Partial alcoholysis and low polymerization degree PVA dissolve very quickly, while complete alcoholysis and high polymerization degree PVA dissolve slowly. As a general rule, the degree of alcoholysis has a greater impact on the solubility of PVA than the degree of polymerization.   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.

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.   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.

EVA is a lightweight material. Compared with other shoe materials such as rubber and leather, it is lighter in texture and has excellent softness, which can better fit the shape of the foot and make the foot feel more comfortable. Very beneficial to children's foot development. Many children's shoes are made of EVA material to provide comfort and support.   EVA shoe materials have good shock-resistant properties, which can reduce the impact on the feet during walking and running. Effectively reduce foot fatigue and protect feet from injury. It also has excellent abrasion resistance and can withstand the wear and tear of daily use. Many well-known sports shoe brands use EVA to make midsoles and insoles. Its lightweight and shock-resistant properties make sneakers more suitable for sports and workouts. EVA material also has good breathability and is also very suitable for making summer sandals.   EVA material has good waterproof properties and has good adaptability to wet and beach environments. Therefore, many beach shoes are made of EVA material, which can provide comfort and anti-slip effect in wet and sandy environments.   Manufacturing EVA shoe materials usually includes the following steps: EVA particles are usually white or transparent, and colors can be added as needed; Heat it to a molten state, and then the melted EVA is injected into the mold through an injection molding machine; The injected EVA material is further pressed and molded to obtain the final shoe material shape; The pressed shoe material needs to go through a cooling process to solidify and maintain the desired shape; Then trim to remove excess material so that it achieves the final look.   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.

Polyvinyl Alcohol (PVA) film is a kind of functional material with excellent properties and wide applications. Because of its unique chemical structure and physical properties, it has been widely used in many fields. The following is a detailed introduction to the properties of polyvinyl alcohol films.   1. Good transparency: PVA film has good transparency, light transmission rate of more than 90%, so that it has a wide range of uses in optical applications, such as liquid crystal display polarizer, optical filter and so on.   2. Excellent mechanical properties: PVA film has good tensile properties and rupture resistance, with high tensile strength and elongation at break. This property makes PVA film has important applications in packaging materials, reinforced fibers and other fields.   3. Good chemical resistance: PVA film has good corrosion resistance to water and organic solvents, so that it can still maintain its physical properties in high humidity environment. This makes PVA film an ideal material for water-soluble fertilizer packaging, medicine preservation and other fields.   4. Solubility: polyvinyl alcohol film has good solubility in water and is a water-soluble polymer that can be completely dissolved. This characteristic makes PVA film can be used as water-soluble packaging film, water-soluble drug coating agent and so on.   5. Thermal stability: PVA film has a high melting point and glass conversion temperature, and can maintain good physical properties at higher temperatures. This enables the application of PVA films in high temperature environments.   6. Biocompatibility: polyvinyl alcohol film is non-toxic and harmless to the human body, has good biocompatibility and will not have any harmful effects on the human body. This makes PVA film widely used in medical devices, artificial organs and other fields.   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.

VAE emulsion is a water dispersion chemical that avoids the environmental impact of solvents and unsafe hazards. Ethylene gives polymers a softness that is permanent and impervious to the environment and climate. VAE dispersions can not only be used as excellent adhesives for paper, wood, plastics, synthetic fabrics, etc., but also can be easily mixed with thickeners, surfactants, PH regulators, plasticizers, solvents, fillers and other ingredients to make adhesives for various specific use.   1. Add thickener The water-soluble polymer thickener can increase the viscosity of the continuous phase between dispersed polymer particles, thereby increasing the viscosity of VAE emulsions. Sodium polyacrylate is an effective thickening agent for VAE emulsions. When the addition amount of thickener is less than 1%, it has little effect on the stripping strength. When 7% is added, the bond strength is significantly reduced. Carboxylic butylbenzene emulsion can significantly increase the viscosity of VAE emulsion, and improve the bonding strength of PVC, PP and other substrates. However, attention should be paid to controlling the amount of addition to prevent the viscosity from being too high.   2. Add surfactants The addition of alkyl polyoxyethylene ether and other surfactants to VAE emulsions can improve the wettability of surfaces that are difficult to wet (such as PVC films, etc.). The effective concentration is 0.1-1.0% parts surfactant per 100 parts emulsion.Adhesives manufactured with VAE emulsions generally do not require the addition of defoamer. In case of foam, add 0.1 ~ 0.2% defoamer.   3. Add PH regulator VAE emulsions are generally stable in the PH range of 3.0 to 8.5. If the PH of the mixture containing VAE emulsions is adjusted below 3.0, it results in an excessively high viscosity and is hydrolyzed more rapidly in the wet state, resulting in a lower PH. When the VAE emulsion is mixed with a dispersion solvent with a completely different PH (for example, PH 9.0), the PH of the VAE emulsion should first be adjusted above 7 with an alkaline substance. To minimize the effects caused by the difference in PH. Ammonia and sodium hydroxide are commonly used PH regulators for VAE emulsions.   4. Add plasticizer and solvent The addition of plasticizers can reduce the cost of formulations. The addition of plasticizers and solvents can also improve the performance of substrates that are difficult to bond. Four plasticizers, dibutyl phthalate, butyl phenyl phthalate, dipropylene glycol phthalate and dioctyl phthalate, were added at 15% concentration to thicken CW40-705.   5. Add stuffing In VAE dispersion-based adhesives, low-cost fillers such as clay and calcium carbonate can be added as fillers or fillers. The viscosity of emulsion can be increased by adding dry filler. First dispersed with water, then a large number of fillers can be added without making the workable viscosity too high. CW40-707 can accept more fillers than other varieties.   6. Wet strength additives The water resistance of VAE emulsions generally meets the requirements. Where improvement is needed, dialdehyde, water-soluble urine aldehyde resin (UF), melamine resin (MF) or phenolic resin can be added. Excellent water resistance can be achieved by heating curing.   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.