What kind of material is EVA adhesive film?

Polymer materials
1. Basic characteristics and composition
Chemical Essence: EVA film is a polymer material made by the copolymerization reaction of ethylene and vinyl acetate.
Physical properties: high transparency, excellent adhesion, aging resistance, low temperature resistance (-70 resistance) and good optical properties.
Morphological classification: According to the different content of vinyl acetate (VA), it can show plastic or rubber characteristics (plastic when the VA content is less than 20%, and rubber when it is higher than 30%).
2. Main application areas
Photovoltaic Packaging :
Transparent EVA film: Mainstream photovoltaic encapsulation material, used for module lamination, providing light transmission, bonding and yellowing resistance at a low cost.
White EVA film: Add titanium dioxide to improve light reflectivity, used for double glass module back packaging, can increase the module power by 1-10W.
Laminated glass: acts as an intermediate adhesive layer to enhance the shock resistance and safety of the glass.
Other industrial applications: such as wire and cable sheaths, packaging films (shockproof, moisture-proof), toys and adhesives, etc.
3. Advantages, disadvantages and precautions
Advantages: environmentally friendly and degradable, non-toxic and odorless (when no harmful additives are added), chemical corrosion resistance.
Limitations: Poor resistance to washing and dry cleaning, not suitable for frequent cleaning scenarios.
Safety tips: Some EVA products (such as slippers and floor mats) may be toxic due to the addition of additives, so you need to choose regular brand products.
4. Related Derivative Materials
EVA hot melt mesh film: The air permeability is better than that of traditional EVA adhesive film, the price is more competitive, and it is suitable for the field of composite materials.
If you need to know more about specific application scenarios or technical parameters, you can supplement your questions based on your specific needs.