Because the price of rubber fluctuates too much, in order to reduce the cost risk, domestic shoe sole companies try to reduce the use of rubber negatives, so that the EVA midsole is exposed in a large area. At this time, the EVA midsole assumes the role of the rubber sole and directly connects the ground! Shoe factory customers will demand that the physical properties of EVA midsoles are closer to those of rubber, so the anti-slip performance has become a compulsory inspection item of EVA3D wear-resistant soles!
EVA shoe material has good abrasion resistance, tear resistance, elasticity, but poor slip resistance, and must be modified. Similar to tires, slip resistance and abrasion resistance cannot be taken into account, and can only be biased towards certain performance indicators. Anti-slip requires high friction, and wear resistance requires low friction, which is the essential reason.
Anti-slip and wear-resistant EVA shoe material, the raw material of EVA rubber granule is fully mixed with foaming agent, filling agent and foaming aid; the raw material of EVA rubber granule is ethylene vinyl acetate EVA, polyolefin elastomer POE, styrene-based Plastic rubber composites and EVA / POE polymers. Its raw material ratio is: ethylene vinyl acetate EVA 30-40%, polyolefin elastomer POE 40-50%, styrene-based thermoplastic rubber composite material 15-30%, EVA / POE polymer 5-10%. Anti-slip and wear-resistant EVA shoe material, by adding styrene-based thermoplastic rubber composite materials to enhance the softness and elasticity of rubber particles, and has shock resistance, EVA / POE polymer enhances its wear resistance.
People often use SEBS to improve the anti-slip performance of EVA foam shoes, but what kind of SEBS is most suitable for modifying the anti-slip performance? It has nothing to do with the molecular weight of SEBS, but it has a lot to do with its structure.