Product Description
EVA 20% refers to Ethylene Vinyl Acetate (EVA) resin with 20% vinyl acetate content. EVA is a copolymer of ethylene and vinyl acetate, widely used in various industries for its flexibility, toughness, and resistance to UV radiation. The 20% VA (Vinyl Acetate) content gives this material specific properties like higher flexibility, impact resistance, and clarity compared to other grades of EVA with lower VA content.
Product Information:
- Material: Ethylene Vinyl Acetate (EVA)
- Vinyl Acetate Content: 20%
- Properties:
- Good transparency
- High flexibility and softness
- Resistance to UV and environmental stress
- Good impact resistance at low temperatures
- Low sealing temperature
- High thermal stability
- Applications:
- Solar panel encapsulation
- Foam materials (for footwear, sports gear, etc.)
- Packaging films and sheets
- Adhesives and sealants
- Cable insulation
Common Product Models:
- EVA VA20% (Foam Grade): For producing foams with superior flexibility.
- EVA VA20% (Adhesive Grade): Used in adhesives and sealants where flexibility and durability are critical.
- EVA VA20% (Film Grade): Ideal for transparent packaging films and sheets.
Keywords:
- EVA resin 20%
- Ethylene vinyl acetate 20%
- EVA foam grade
- Solar encapsulation EVA
- Flexible packaging EVA
EVA 20% Physical Properties
Appearance: usually transparent or translucent granules or sheets
Density: 0.93 - 0.96 g/cm³ (depending on specific product formulation)
Melt Index (MI): 1 - 50 g/10 min (varies according to processing needs)
Hardness: softer, Shore A hardness around 20 - 30
Tensile strength: 8 - 20 MPa (depending on specific grades)
Elongation: 400% - 800% (with high ductility)
Melting point: 85 - 100°C
Heat distortion temperature: 70 - 80°C
Transmittance: high, suitable for transparent material applications
Low temperature resistance: flexible down to -70°C
Water vapor transmission rate: medium, suitable for some applications requiring breathability
Chemical properties of EVA 20%
Chemical structure: Copolymer of ethylene and vinyl acetate with 20% vinyl acetate content.
Chemical stability: good chemical stability at room temperature, good resistance to acids, alkalis, salts and other general chemicals, but may be degraded in a strong oxidizing environment.
Solvent resistance: It has some resistance to most organic solvents, but may be dissolved or solubilized by strong polar solvents such as ketones and esters.
Flammability: flammable, combustible gases such as acetic acid and ethylene will be produced when burning, the flame is yellow with smoke.
Light stability: good UV resistance, not easy to be degraded by sunlight exposure.
Thermal stability: good thermal stability in the temperature range, will gradually soften and melt when exceeding the melting point, but not easy to decompose.
Processability: It can be processed by injection molding, extrusion, blow molding, calendering and other techniques, and is suitable for a variety of uses.
These physical and chemical properties allow EVA 20% to excel in a variety of applications, especially in areas where flexibility, transparency and low temperature resistance are required, such as solar encapsulation, shoe foam, packaging films, etc.
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