Factory Customized Gum Industrial Butyl Flexible Natural Rubber Sheet

Since the industrial production of butyl rubber, the raw material route, production process and the structure of polymerization kettle have not changed much. Generally, methyl chloride is used as diluent and aluminum trichloride is used as catalyst. The monomer conversion can be adjusted by controlling the amount of these two. The polymerization of butyl rubber is carried out by positive ion reaction. The reaction temperature is low, the reaction speed is fast, the exothermic heat is concentrated, and the molecular weight of the polymer decreases sharply with the increase of temperature. Therefore, it is the main problem in production to rapidly discharge the polymerization heat to control the reaction at a constant low temperature.

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.