In the processing of rubber, there are many chemicals used like sulphur, zinc oxide, TMT, titanium, MBTS, minerals like calcium carbonate and carbon, and processing oils called RPO or Rubber Processing Oil. In processing rubber, all these materials are mixed together using rubber processing machinery which include ban-bury mixture, kneader machine, mixing mills, calendaring machine, extrude machine, hydraulic press, roto-cure, and cooling conditioner. There are two types of rubber, the natural and the synthetic.
Natural rubber is derived from the rubber tree. The milk type of material leaking from the rubber tree called latex is processed.
Synthetic rubber is a product which is petroleum based. This is manufactured using content derived from crude oil and with the addition of certain chemicals by means of industrial application. You can find many varieties of synthetic rubber in the market. These synthetic rubber can come in the form of Chloroprene (Neoprene), Silicone, EPDM, Fluoro-elastomer, nitrile, hypalon, and butyl. These grades differ in their applications and specification.
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The characteristics of Neoprene is that they are resistant to oil, acid, alkali, hydrocarbons, and heat.
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Silicone is highly resistant to temperature. Silicon can bear up to 250 degrees Celsius.
The type of rubber resistant to weather, temperature, aging, and radiation is EPDM. The reason why EPDM is widely used in waterproof roofing, and canal and ponds lining is that it prevents water or liquid to pass through.
Nitrile or NBR sheets are permeable to gases and so it is used as gaskets for packing purposes.
Viton or fluoroelastomer is resistant to a wide range of oils and solvents. It has good abrasion and is resistant to tearing. It is also able to bear high temperatures.
Over the past few years, the demand for rubber has been increasing. This is because of the revolution in the automobile sector. Every automobile needs tires. And tires are the reason why the prices of natural and synthetic rubber are increasing every day. Eighty percent of the entire rubber production in the world is consumed by the tire industry.
There are other major rubber products we can find. Industrial rubber sheets are used in a variety of applications like gaskets, packing, electrical insulation and matting purposes. Today, rubber sheets are manufactured using a blend of natural and synthetic rubber and are available in different colors like green red, blue, and black. The prefer to use the black color for industrial purposes.
Rubber sheet manufacturing uses different raw materials depending on its application. For example, silicone is used for heat resistant purposes, neoprene for acid and heat, and other materials for particular applications.
There are many other products from rubber aside from industrial rubber sheets, and these include hoses, mats, tires, condoms, medical equipment, oil seals, gaskets, yoga mats, conveyor belts, footwear, printing rollers, electrical insulation mats, and more.