Rubber is commonly used in the production of hunting boots, fishing boots, rain boots and various types of work boots.
The main rubbers are: natural rubber, synthetic rubber and general rubber.
1. Natural rubber: Natural rubber is mainly derived from the rubber tree of the three-leaf rubber. When the skin of the rubber tree is cut, the milky white juice will flow out, called latex. The rubber is agglomerated, washed, shaped, and dried to obtain natural rubber.
2. Synthetic rubber: It is made by artificial synthesis method. Different kinds of rubber can be synthesized by using different raw materials (monomers).
3, general rubber: refers to some or all of the rubber used in place of natural rubber, such as styrene butadiene rubber, butadiene rubber, isoprene rubber, etc., mainly used in the manufacture of tires and general industrial rubber products. General rubber is in high demand and is the main type of synthetic rubber.
(1) styrene-butadiene rubber: styrene-butadiene rubber is a copolymer of butadiene and styrene. It is the most popular general-purpose synthetic rubber, including latex polystyrene-butadiene rubber, solution-polymerized styrene-butadiene rubber and thermoplastic rubber (sbs).
(2) Butadiene rubber: It is obtained by solution polymerization of butadiene. The butadiene rubber has excellent cold resistance, wear resistance and elasticity, and has good aging resistance. Most of the butadiene rubber is used to produce tires, and a small part is used to make cold-resistant products, cushioning materials, and tapes and rubber shoes. The disadvantage of butadiene rubber is that the tear resistance is poor and the wet skid resistance is not good.
(3) Isoprene rubber: Isoprene rubber is an abbreviation of polyisoprene rubber and is produced by solution polymerization. Like natural rubber, isoprene rubber has good elasticity and wear resistance, excellent heat resistance and good chemical stability. The strength of the isoprene rubber (unprocessed) is significantly lower than that of natural rubber, but the quality uniformity and processing properties are superior to those of natural rubber. Isoprene rubber can be used to make heavy duty tires and off-road tires instead of natural rubber. It can also be used to produce a variety of rubber products.
(4) Isopropane rubber: Isopropyl rubber is synthesized from ethylene and propylene as main raw materials, and has outstanding resistance to aging, electrical insulation and ozone resistance. The isopropyl rubber can be filled with a large amount of oil and filled with carbon black, and the product price is low. The isopropyl rubber has good chemical stability, wear resistance, elasticity, oil resistance and styrene-butadiene rubber. Iso-rubber is widely used as a tire sidewall, rubber strip and inner tube, as well as automotive parts. It can also be used as wire and cable sheathing and high-voltage, ultra-high-voltage insulation materials. It can also manufacture light-colored products such as rubber shoes and sanitary products.
(5) Neoprene: It is made of homopolymer or a small amount of other monomers by using chloroprene as the main raw material. Such as high tensile strength, heat resistance, light resistance, aging resistance, oil resistance is better than natural rubber, styrene butadiene rubber, butadiene rubber. It has strong flame resistance and excellent resistance to flame retardancy. It has high chemical stability and good water resistance. The disadvantage of neoprene is that it has electrical insulation properties and poor cold resistance, and the raw rubber is unstable during storage. Neoprene is used in a wide variety of applications, such as the manufacture of conveyor belts and drive belts, sheathing materials for wires and cables, and the manufacture of oil-resistant hoses, gaskets and chemically resistant equipment linings.