The characteristics of the EVA sole

by:BEF     2020-06-28

EVA soles, characterized by good softness, elasticity of rubber, EVA soles under 0 ℃ can still has good flexible, good transparency, or surface gloss, good chemical stability, anti-aging and good ozone resistance strength, non-toxic. EVA sole with good packing mixing, colouring and forming good workability.

EVA soles and vinyl acetate content and molecular weight, melt index relationship is very large. When EVA soles, melt index ( MI) Certainly, vinyl acetate ( VA) Content increase, the elasticity, softness, and improve the intermiscibility, transparency, etc. When the VA content reduce, the performance is close to the PE, high rigidity, wear resistance, electrical insulation.

content must be if EVA, melt index increased, the softening point is reduced, processability and improve surface gloss but strength will decline, otherwise, the molecular weight increased with the decreasing of MI, impact performance and environmental stress cracking resistance improved. The polarity of the acetic acid root increased elasticity and stickiness, crystalline and performance decline, soluble in hydrocarbon solvents and oils.

tag: EVA sole
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