Factory Customized Tire Recycled Reclaim Rubber EPDM NBR Butyl Reclaimed Rubber

Butyl rubber (IIR) is the fourth largest synthetic rubber (SR) rubber in the world. It is the product of cationic polymerization of isobutene and isoprene under the action of Friedel-Craft catalyst. It is white or light yellow crystal in appearance, odorless and tasteless, has a low glass transition temperature, and is insoluble in ethanol and acetone. Butyl rubber is widely used in inner tubes, water tubes, vulcanized capsules, airtight layers, sidewalls, wires and cables, waterproof building materials, damping materials, pharmaceutical bottle stoppers, food (gum base material), rubber dams, anti-poison appliances, adhesives, inner tube valve cores, anti-corrosion products In terms of wharf ship protection, bridge support pad and heat-resistant transport belt.

Butyl rubber has short double bonds in its molecular structure and high dispersion density of side chain methyl, so it has excellent characteristics of receiving vibration and impact energy. The rebound characteristics of butyl rubber are not more than 20% within a wide temperature range (- 30 to - 50 ℃), which clearly shows that the ability of butyl rubber to receive mechanical functions is superior to other rubbers. The damping property of butyl rubber at high deformation rate is inherent in the chain segment of polyisobutylene. To a large extent, it is not affected by application temperature, degree of unsaturation, vulcanization profile and formula changes. Therefore, butyl rubber was an ideal material for sound insulation and vibration reduction at that time.