Classification of safety shoes soles and their respective features

Answer:

MD: MODEL or PHYLON referred to as the bottom of the dragon, by EVA disposable foam molding, good flexibility, high elasticity, good thermal performance, lightweight, flexible, fine appearance and easy cleaning; MD safety shoes at the end of hardness, density, tensile strength, elongation, tear is good. But the poor wear resistance, corrosion resistance against environmental protection at high temperature, easy to wrinkle, easy shrinkage; poor durability, a long time using the suction force will be reduced, poor air permeability. The general high shoes for more. Also called PHYLON MD at the end of the end.

Bottom: Ethylene Vinyl Acetate- EVA ethylene vinyl acetate copolymer, polymer material. Light, good elasticity, good flexibility, not easy to wrinkle, with excellent color, suitable for all kinds of climate easy processing, but do not wear, not oil resistant, easy to absorb water, not easy to corrosion, easy dirty. Adverse environmental protection EVA (E ethylene, VA vinyl acetate vinyl acetate) with more safety shoes elasticity.

At the end of polyurethane (PU) polyurethane polyurethane is referred to as English name is polyurethane, it is a kind of polymer material, polyester foam material made by A/B/C, and two kinds of oily water. Is a kind of new polymer materials, known as the "Fifth Plastic", used for the manufacture of high-grade leather shoes, sports shoes, travel shoes, shoes etc. it has excellent abrasion resistance and repeated bending performance, tensile strength and good elasticity, oil resistance, acid and alkali resistance and excellent resistance to low temperature, low density, soft texture, good elasticity, comfortable and easy to wear; good oxidation resistance, hardness high damping, good antiskid performance;; good chemical resistance; corrosion for environmental protection, is not easy to fold. The bottom can be automatically abandoned PU degradation, environmental protection, requirements for impact resistance, wear thick shoes more suitable; is the most commonly used One of the shoes. But there are yellowing, hydrolysis, cracking, easy to open, strong water absorption, easy yellowing, easy to break, the extension rate is poor, not water, bottom perishable, poor ventilation and other issues.

Rubber (RB): RB is the abbreviation of rubber English (rubber); hot pressing molding, natural rubber and synthetic rubber. Good abrasion resistance, anti slip, good elasticity, not easy to break, good softness, good stability, extended shrinkage, good hardness, good flexibility, waterproof but heavier. Yi Tushuang is not easy to corrosion, not hard, easily pierce; permeability, moisture absorption is not good, not afraid of oil, oil immersion, rubber sole safety shoes should not be in the car with gas station oil in place to wear, but also high cost. At the end of the fitting surface must be molded in the coarse grinding, by adding leaving the temperature shortened, color is not consistent.

Bottom: TPR (T, P, R thermal plastic rubber) TPR is a general term of generalized, including TPV, SEBS, SBS, TPO, TPU, EVA and other products.TPR sole is mainly refers to the modified material commonly known as SBS (a TPR application belongs to the material) is the special material.TPR for shoes a new type of polymer material for shoes mainly manufactured by thermoplastic SBS, rubber properties for processing and recycling, according to thermoplastic plastic is wear-resistant, easy shaping, low price; safety shoes TPR base material has the characteristics of lightweight, comfortable, high elasticity, good air permeability, easy staining high strength, especially excellent low temperature resistance, high friction coefficient, adhesion is strong. But the contact oil solvent will slip. Heavy material, poor abrasion (no wear), flexibility is poor, poor bending (without folding), shock absorption ability is poor, poor ventilation can use ordinary plastic. The forming machine Made of injection molding, extrusion molding, blow molding, rubber products. TPR pellets after hot melt injection molding, forming molecules in emission movement