
2022-03-26
Some introduction of EVA materials:
First, EVA material excellent heat resistance: foaming corner is usually used under 80T, foaming Px device can withstand 70-80 ℃, and foaming PP can withstand 120T. Foamed PP is placed at 120 ℃ for 21h. The size shrinkage is less than 2%, and the foamed PE shrinks about 40% under phase condition. Therefore, foamed PP can be used in situations where the temperature exceeds 100T.
EVA material with excellent mechanical properties: Take Ace EVA foaming material from Guhe Electric Company of Japan as an example. Its mechanical properties such as tensile strength and tear strength are in
The highest grade of foam plastics; Its compressive strength is lower than rigid PUR and foaming Ps. Dong than soft PUR gang, that is, with moderate compression strength;
Three, EVA material significant heat insulation: foamed PP and foamed PE - like is a closed bubble structure, therefore, its thermal conductivity will not be affected by solid moisture, because its thermal conductivity is lower than foamed PE, has significant heat insulation, so it can be used as advanced insulation materials.
EVA materials with resilience have high impact energy absorption capacity.
Five, EVA material chemical corrosion resistance is better than all other foam plastics; Edible oil resistance, meet the need of sleeve greasy food packaging.
EVA material has good stress cracking resistance.
Vii. Compared with foaming PS, foaming PP in EVA material has no gas release when burning.
EVA material can also be recycled.
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