EVA material use and EVA material characteristics

2022-11-16 10:17:40 Roro

EVA material use and EVA material characteristics:


1. What is the material of EVA:


(1) Ethylene-vinyl acetate copolymer (also known as ethylene-vinyl acetate copolymer) is obtained by copolymerization of ethylene (E) and vinyl acetate (VA). The English name is: Ethylene Vinyl Acetate, abbreviated For EVA, or E/VAC.

(2), EVA is made of ethylene-vinyl acetate copolymer (also known as ethylene-vinyl acetate copolymer) by copolymerization of ethylene (E) and vinyl acetate (VA)

(3) The content of vinyl acetate (VA) in EVA is 5%-40%. Compared with polyethylene (PE), EVA reduces the high crystallinity and improves the Toughness, impact resistance, filler compatibility and heat sealing properties.


2. EVA material characteristics:


EVA material quality classification: EVA material is divided into three grades into A grade, B grade and C grade. EVA thickness: not less than 0.5mm, not more than 50mm (whole board)

The new environmentally friendly plastic foam material has the advantages of good cushioning, shock resistance, heat insulation, moisture resistance, and chemical corrosion resistance, and is non-toxic and non-absorbent.


Water resistance: Closed cell structure, non-absorbent, moisture-proof, good water resistance.

Corrosion resistance: resistant to seawater, oil, acid, alkali and other chemical corrosion, antibacterial, non-toxic, tasteless, and pollution-free.

Processability: No joints, and easy to process such as hot pressing, cutting, gluing, laminating, etc.

Anti-vibration: High resilience and tensile strength, strong toughness, and good shock-proof/cushioning performance.

Thermal insulation: heat insulation, excellent thermal insulation, cold protection and low temperature performance, and can withstand severe cold and exposure. Sound insulation: airtight cells, good sound insulation.


3. EVA use:


Widely used in anti-shock and anti-skid of electronic appliances, sealing and heat preservation, lining of various packaging boxes, metal cans and other industries. Products are widely used in: electronic dictionaries, instruments, gifts, printing, packaging, machinery, tablet computers, mobile phones, digital cameras, air conditioners, water dispensers, computers, electronic appliances, communications, military products, speakers, lighting, toys and other industries. Play the role of shielding, anti-static, fireproof, shockproof, heat preservation, anti-slip, fixed, wear-resistant and heat-resistant, insulation and so on.



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