Ethylene Vinyl Acetate Resin

  • Abbreviation: EVA Resin
  • Appearance: Transparent granules
  • Density: 0.92~0.98g/cm3
  • CAS No.: 24937-78-8
  • HS Code: 39013000
  • Molecular Formula: C18H30O6X2
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Ethylene vinyl acetate copolymer (EVA) is a thermoplastic resin formed by the copolymerization of ethylene and vinyl acetate. With the increase of vinyl acetate (VA) content, the elasticity, softness, adhesion, compatibility, transparency and solubility of EVA resin are also improved accordingly. The content of vinyl acetate (VA) is usually 5%~40%. Compared with polyethylene, EVA resin reduces its high crystallinity and improves its flexibility, impact resistance, filler compatibility and heat sealing properties due to the introduction of vinyl acetate monomer in the molecular chain.

Generally speaking, the performance of EVA resin mainly depends on the content of vinyl acetate in the molecular chain. Since the proportion of each component can be adjusted to meet different application needs, the higher the content of vinyl acetate, the higher its transparency, softness and toughness. Therefore, EVA resin granules can be widely used in foam shoe materials, functional shed films, packaging films, hot melt adhesives, wires and cables, and toys and other fields.

 Various BrandsMain Grades
LOTTE EVALVS430/VS430,VS410,VS420,VS440,VL730,VL830,VE800,VA600,VA800,VA810,VA900,VA910,VA920,VA930,VC590,VC640,VC710
LG EVAEA19150,EA19400,EA28015,EA28150,EA28025,EC28005,ES28005,EA33400,EA33045,EA28400,VA900
HANHUA EVA2518,2014,E182L,1157,2050
BASF EVA5110J,5210J,6110M,00628,V6020M,V6110M
Formasa Taisox™ EVA7350M,7470M,7470K,7760H
ExxonMobil Escorene™ EVAFL 00018, FL 000019, FL 00014,FL00212,FL00328,UL00018,UL 7510
TPI EVAWV1055,MV1055,SV1055,YV1055,SSV1055,SV1040
Others00628,Y2022,Y2045,V5120J,V5110J,180F,UL00628,UL00428,KA31,UE639

Main Applications of EVA Ethylene Vinyl Acetate copolymer

With its excellent physical and chemical properties, ethylene vinyl acetate copolymer resin is widely used in many fields such as footwear, packaging, wires and cables, construction, sporting goods, and auto parts. The following are the main uses of EVA resin:

  • Hot melt adhesive. EVA copolymer is mixed with tackifying resin and wax to make hot-melt adhesive, which has excellent adhesive force and is widely used in packaging, bookbinding, woodworking, shoe industry, plastic bonding, etc.
  • Foam shoe materials. The ethylene vinyl acetate copolymer is widely used in the manufacture of midsoles, insoles, and outsoles of various footwear products due to its excellent elasticity and wear resistance. It can provide good shock absorption and wearing comfort, and is deeply loved by consumers.
  • Packaging materials. This resin material has good cushioning properties, chemical resistance, and easy processing, making it an ideal packaging material. It is often used to make packaging materials such as foam pads and bubble films to protect products from damage during transportation and storage.
  • Wires and cables. As an insulating layer material for wires and cables, the ethylene vinyl acetate resin has excellent insulation and processing properties. It can protect the internal conductors of wires and cables from erosion by the external environment and ensure the safe operation of electrical equipment.
  • Building materials. EVA resin is also widely used in the construction field, such as for the manufacture of waterproof rolls, sound insulation materials, thermal insulation materials, etc. These products can effectively improve the waterproof, soundproof and heat-insulating properties of buildings and improve the comfort of the living environment.
  • Sporting goods. The elasticity and wear resistance of ethylene vinyl acetate copolymer (EVA) make it an ideal material for the manufacture of sporting goods. For example, EVA copolymer can be used to make yoga mats, exercise mats, ball supplies, etc., providing excellent support and protection for athletes.
  • Auto parts. EVA resin also has important applications in automobile manufacturing, such as cushioning materials for car seats, door seals, sound insulation materials, etc. These accessories can improve the ride comfort and safety of cars.
  • Other fields. This EVA polymer resin can also be used to manufacture medical devices, toys, toy packaging, toy puzzles, toy slides, floors, EVA wallpapers, etc. to meet the needs of different fields.
Uses of EVA Copolymer Resin
  • Excellent elasticity. EVA resin has excellent elasticity and resilience, which allows it to quickly return to its original shape even after repeated compression or stretching. This property makes it very suitable for the manufacture of products that require good elasticity, such as insoles, cushioning materials, sports equipment, etc.
  • Good processing performance. The EVA copolymer has good thermoplasticity and processability, and can be processed by a variety of molding processes, such as injection molding, extrusion, blow molding, etc. This allows EVA resin to be easily made into products of various shapes and sizes to meet different needs.
  • Chemical corrosion resistance. EVA resin has good resistance to most chemicals and is not easily corroded by chemicals such as acids, alkalis, and salts. This makes it widely used in occasions that require chemical corrosion resistance, such as chemical plants, swimming pools, etc.
  • Excellent insulation properties. The ethylene vinyl acetate copolymer is an excellent insulating material with good electrical insulation properties. Therefore, it is often used in the insulation layer of wires and cables to ensure the normal operation and safety of electrical equipment.
  • Good cold and heat resistance. This ethylene vinyl acetate copolymer has good cold and heat resistance, and can maintain its stable performance over a wide temperature range. This allows it to maintain its original physical and chemical properties even under extreme temperature conditions and adapt to various complex working environments.
  • Good adhesion and paintability. EVA resin has high surface activity, is easy to bond with various materials, and has good paintability. This allows it to be compounded with other materials such as cloth, leather, etc. to enhance its performance or aesthetics.
  • Environmental protection. The EVA copolymer resin is a recyclable material, and does not produce harmful substances during production and use, which is environmentally friendly. This meets the environmental protection requirements of modern society and promotes its application in various fields.

According to the different VA content, ethylene vinyl acetate (EVA) copolymer can be divided into three categories: EVA resin, EVA elastomer and EVA emulsion. And each type of EVA copolymer has its own unique performance and application, and is widely used in wires and cables, films, rubber, coatings and other fields. The following is their detailed introduction:

  • EVA resin (VA content is usually between 5% and 40%). Due to the introduction of VA, the crystallinity of EVA resin is significantly reduced, and the properties of polymer branching, flexibility, impact resistance, etc. are significantly improved. EVA resin is widely used in polyethylene modification, manufacturing wires and cables, films, and other molded products and mixtures. In addition, it also has important applications in foaming materials, photovoltaic films, functional greenhouse films, injection molding products, and blending agents.
  • EVA elastomer (VA content is usually between 40% and 70%). With the increase of VA content, the elasticity of EVA materials increases significantly, and the chain transfer reaction increases, resulting in a wider molecular weight distribution, which affects the fluidity of the melt. EVA elastomer is mainly used in rubber, cables, and automotive industry parts. Due to its high elasticity, it can be used as a modifier for polyvinyl chloride, and it is almost amorphous and has a low glass transition temperature.
  • EVA emulsion (VA content is as high as 75% to 95%). Due to the extremely high VA content, EVA emulsion has unique physical and chemical properties and is suitable for specific industrial applications. EVA emulsion is mainly used in coating industries such as adhesives and conductive paints.

In addition, the production process of EVA copolymer includes high-pressure bulk polymerization, suspension polymerization, emulsion polymerization and solution polymerization. Among them, high-pressure bulk polymerization is the mainstream method for producing EVA materials. This method passes ethylene gas into a reactor filled with vinyl acetate liquid under high pressure and high temperature to carry out copolymerization.

  • As a leading ethylene vinyl acetate EVA resin supplier in China, Fengbai has more than 15 years of export experience in plastic chemicals industry.
  • We can guarantee sufficient supply and fast delivery.
  • Fengbai has a good cooperation with cargo agents and shipping companies.
  • Good quality and services, competitive EVA resin price.
  • Free samples for testing and different packages to meet customers’ requirements.

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