Butyl rubber is the most airtight rubber product because the side-methyl groups in the butyl rubber molecular chain are arranged closely to restrict the thermal movement of the polymer molecules, and the diffusion of the gas inside the rubber and the molecular thermal motion are direct Therefore, butyl rubber has low air permeability and excellent air tightness. Butyl reclaimed rubber is a reclaimed rubber produced from waste butyl inner tube as the main raw material, retains most of the molecular chain structure of butyl rubber, inherits the high airtightness of butyl rubber and is the most airtight rubber in reclaimed rubber Good reclaimed rubber. But in fact, butyl rubber regeneration in addition to excellent air tightness, it also has many performance characteristics.
1, good water tightness Butyl reclaimed rubber has lower water absorption than other kinds of reclaimed rubber at normal temperature, so it can produce rubber products such as water tire which require high watertightness of raw materials and maintain good air tightness and water impermeability.
2, ozone-resistant anti-aging. Butyl reclaimed rubber molecular chain characteristics of high saturation, low unsaturation of natural rubber 1/50, so it has good resistance to ozone, anti-aging properties, also has a very long life in special environments.
3, heat-resistant. The use of butyl rubber reclaimed rubber production has good heat resistance, in particular the use of resin curing system produced butyl rubber reclaimed rubber products can work in the temperature of 150-200 ℃; sulfur curing system using the production of butyl rubber reclaimed Products can be long-term use in the environment of about 100 ℃.
4, sound-absorbing damping. The reason why butyl rubber has good sound absorbing and vibration absorbing properties is that the molecular structure of butyl rubber does not have double bonds and the density of side chain methyl groups is larger so that butyl rubber can be used for various sound absorbing materials. Noise reduction equipment in the production, such as damping blocks, damping tablets and so on.
5, insulation. Butyl reclaimed rubber has high resistivity and therefore good electrical insulation.
6, chemical stability. The highly saturated structure of butyl reclaimed rubber not only gives it good air-tightness but also gives it high chemical stability. Butyl reclaimed rubber has good resistance to some non-oxidizing acids and moderate concentrations of organic and inorganic acids.
In addition, butyl rubber reclaimed rubber for animal oil is still a strong resistance, at low temperatures can maintain a certain degree of flexibility and softness.
With the above performance characteristics, butyl rubber is widely used in the production of various highly-airtight rubber products for automobiles, motorcycles and bicycle inner tubes. The production of butyl inner tubes, vulcanized capsules, steam pipes, dam bottom layers, gaskets and airtight layers , Shock absorption materials, medical stoppers, rubber dams, gas appliances, inner tube valve core, anti-corrosion products, boat fenders, bridge bearing pads and heat transport belt and other industries rubber products.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits