Question:
Safety shoes, shoes soles are good rubber bottom or PU injection bottom?
Safety shoes, shoes soles are good rubber bottom or PU injection bottom?
Answer:
Rubber: used in all kinds of sports shoes outsole. Advantages: good abrasion resistance, anti slip, flexible, easy to break, good softness, good stability, extension and shrinkage, good hardness and good bending. Disadvantages: heavy weight, easy to spit cream (quality problems), not easy to corrosion (environmental issues)
TPR: to TPR after injection molding hot pellets, used to jog, walk, casual shoes insole, outsole. Advantages: easy molding, cheap price. Disadvantages: heavy material, poor wear (no wear), poor flexibility, poor bending (non bending resistance), poor seismic absorption ability
PHYLON (MD): EVA two high-pressure molding products, international running shoes, tennis shoes, basketball shoes at the bottom of the main materials, can also be used for casual shoes outsole. Advantages: light, elastic, fine appearance and good flexibility. Easy to clean, hardness, density, tensile force, tear and elongation. Disadvantages: not easy to corrosion, adverse environmental protection, high temperature wrinkle easily, easy to shrink.
EVA: vinyl acetate copolymer, high polymer material. Used to jog, walk, leisure shoes, foot training shoes. Advantages: light, flexible, flexible and difficult to wrinkle. It has excellent coloring and is suitable for all kinds of climates. Disadvantages: easy to absorb water, not easy to corrosion, adverse environmental protection, easy to dirty.
PU: polymer polyurethane composite material, often used in basketball, tennis shoes midsole, can also be used directly for casual shoes outsole. Advantages: density, high hardness, wear resistance, good flexibility, good oxidation resistance, corrosion is not conducive to environmental protection, easy to fold. Disadvantages: strong water absorption, Yi Bianhuang, easy fracture, poor elongation, water resistance, easy to rot at the bottom.