safety shoes are rubber soles. What are their advantages and disadvantages

As the sole of safety shoes is made of different materials, including leather sole, rubber sole and polyurethane sole, the advantages and disadvantages of different soles are different. What 1 want to introduce to you today is the advantages and disadvantages of rubber sole:

rubber sole is divided into natural rubber and recycled rubber by hot compression molding. 1t is not oil-resistant in weight. When molding the bottom, it must be roughened on the fitting surface. 1t is easy to shorten when heated, and the color is inconsistent

safety shoes manufacturers said that their advantages are: good wear resistance, anti-skid, elastic, not easy to break, good softness, good extensibility, stable shrinkage, good hardness, good bending, waterproof. Disadvantages are: heavy, easy to spit frost (quality problems), not easy to corrosion (environmental problems); Not hard, easy to be pierced through; The air permeability and moisture absorption are not good, so it is not suitable to wear in the place contacting with oil such as gas station

rubber foam: it is lighter than rubber sole, has rubber smell, can be used with fingers on time, the surface rebound is more obvious than ordinary sole, and has poor wear resistance

high pressure polyethylene rubber sole: the sole is mainly composed of high pressure polyethylene and rubber flavor, and rubber and plastic are used together

raw rubber bottom: heavy, expensive, not resistant to oil and heat, easy to change color

industrial production began in the United States in the mid-1950s. 1ndustrial production methods can be divided into two categories: one is the mechanical blending of polybutadiene or styrene butadiene rubber and San resin on the roller, or the blending and copolymerization of the two latex; 1n addition, styrene and acrylonitrile monomers were added to styrene butadiene latex with low content of polybutadiene or styrene, and emulsion graft copolymerization was used or mixed with SAN resin in different proportions. Structure, properties and application in ABS resin, rubber particles are dispersed in the continuous phase of San resin. When impacted, the crosslinked rubber particles bear and absorb the energy, so that the stress is dispersed and the crack development is prevented, so as to improve the tear resistance. The purpose of graft copolymerization is to improve the compatibility and adhesion between rubber particle surface and resin phase. This is related to the amount of free San resin and the composition of San resin grafted on the main chain of rubber. The difference of acrylonitrile content between the two resins should not be too large, otherwise the poor compatibility will lead to the cracking of rubber resin interface. ABS resin can be processed into plastics by injection molding, extrusion, vacuum, blow molding and rolling, and can also be processed by mechanical, adhesive, coating and vacuum evaporation. Because of its excellent comprehensive performance and wide application, it is mainly used as engineering materials and household appliances. Because of its good oil resistance, acid resistance, alkali resistance, salt resistance and chemical reagent resistance, it can be used to replace some metals because of its good electroplating performance, good luster, light specific gravity and low price. 1t can also synthesize many varieties such as self extinguishing type and heat-resistant type to adapt to various uses. Different material safety helmet has different performance, you can make the right choice according to your own needs

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