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English abbreviation of material: EVA
Chinese name of material: ethylene-vinyl acetate copolymer
Full English name of material: ethylene-vinylacetatecopolymer
EVA basic parameters:
Relative density 0. 92～0。 ninety-eight
Refractive index 1. 480～1。 five hundred and ten
Brittleness temperature<- 60 ℃
Thermal decomposition temperature 230~250 ℃
EVA basic characteristics
Stability: good chemical stability, aging resistance and ozone resistance.
Water resistance: closed bubble structure, non-absorbent, moisture-proof, good water resistance.
Corrosion resistance: resistant to seawater, oil, acid, alkali and other chemicals, antibacterial, non-toxic, tasteless and pollution-free.
Processability: no joint, and easy for hot pressing, cutting, gluing, fitting and other processing.
Anti-shock: high resilience and tension resistance, high toughness, and good shockproof and cushioning performance.
Thermal insulation: excellent thermal insulation, cold insulation and low temperature performance, resistant to severe cold and exposure.
Sound insulation: closed bubble, good sound insulation effect
Low temperature resistance: super low temperature resistance (- 70C): suitable for freezing environment.
Anti-static property: after adding anti-static agent, the surface resistance is 10 to 9 ohms, with good anti-static property and electromagnetic shielding performance.
Environmental protection: biodegradable, no harm to the environment when discarded or burned
Free of heavy metals: comply with relevant international toy regulations (EN-71Part3 and ASTM-F963).
Phthalate free: suitable for children's toys and will not cause plasticizer release hazard.
EVA uses: products are widely used in electronic dictionaries, instruments, gifts, printing, packaging, machinery, tablet computers, mobile phones, digital cameras, air conditioners, drinking fountains, computers, electronic appliances, communications, military products, speakers, lighting, toys and other industries. They play the role of shockproof, thermal insulation, anti-skid, fixation, wear and heat resistance, insulation, etc. The addition of relevant foaming additives can also play an anti-static and fireproof role.