Heat, Ozone, And Weather Resistance

- Jun 13, 2018-

There are many kinds of rubber sheets, and there are different categories according to different classification methods. At present, the source and use classification methods are mainly used.

The classification of rubber plates is classified according to the source and purpose, which can be divided into two major categories: one is natural rubber sheet NR, and the other is synthetic rubber sheet. Natural rubber is obtained from plants, and the processing procedures are mainly tapped, diluted, filtered, solidified, and dried. Natural rubber sheet is mainly made of natural rubber plus compounding agent and filler. The most critical properties of natural rubber sheet are good elasticity, strong tensile strength, good tear strength, high insulation, strong adhesiveness, and easy processing. Synthetic rubber is an artificially synthesized high-elastic polymer with many types, each with its own characteristics and a wide range of uses.

Synthetic rubber sheets are also divided into two major categories: First, general rubber sheets, and second, special rubber sheets. There are a variety of general-purpose rubber sheets, including styrene-butadiene rubber sheet SBR, butadiene rubber sheet BR, nitrile rubber sheet NBR, chloroprene rubber sheet CR, butyl rubber sheet IIR, EPDM rubber sheet EPDM, and the like. The styrene-butadiene rubber products have a comprehensive balance of good wet skid resistance, low rolling resistance, and good wear resistance. According to its properties, it is not required to be oil-resistant and heat-resistant, and can be used in any occasion without special requirements. The performance of butadiene rubber is close to styrene-butadiene rubber, which is cheaper. EPDM rubber has excellent resistance to ozone aging, heat resistance, weathering resistance, water resistance, chemical resistance, and excellent electrical insulation properties. The performance of butyl rubber is similar to that of ethylene propylene diene monomer, but it is slightly inferior to ethylene propylene rubber and has the best airtightness and damping; the disadvantage is the lack of processability. Nitrile rubber is mainly good oil resistance, heat resistance and antistatic properties. Neoprene has better heat resistance, ozone resistance, weather resistance, flame retardant, and good adhesion.

Special rubber sheets have excellent performance and have special properties that are not available in general rubber sheets, but they are expensive. The most commonly used are mainly silica gel plates and fluoroplastic plates. The main features of the silicone plate are high temperature resistance, low temperature resistance, ozone resistance, corona resistance, and air permeability. Fluoroplastic board has the characteristics of high temperature resistance, oil resistance, corrosion resistance, vacuum resistance, and flame retardant effect.

The rubber plates are classified according to their functional uses: They are mainly classified into oil-resistant rubber plates, acid-alkali-resistant rubber plates, heat-resistant rubber plates, insulating rubber plates, anti-static table pads, resistance rubber plates, and anti-slip rubber plates.