The Difference Between Butyl Rubber And Ordinary Rubber

Chemical composition:
Butyl rubber: a synthetic rubber synthesized from isobutene and a small amount of isoprene, with good chemical stability and excellent air and water tightness
Ordinary rubber: mainly composed of polyisoprene, with good elasticity and wear resistance
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Physical properties:
Butyl rubber:
Good airtightness: Due to the dense arrangement of side methyl groups in its molecular chain, the thermal activity of polymer molecules is limited, resulting in low air permeability, making it suitable for applications that require high airtightness.
Aging resistance: It has good aging resistance and can maintain stability in sunlight and ozone environments. ‌
Heat resistance: It has good heat resistance and can be used at higher temperatures.
Ordinary rubber:
Good elasticity: Natural rubber has good elasticity and resilience, making it suitable for applications that require good elasticity.
Good wear resistance: Natural rubber has good wear resistance and is suitable for applications that require friction.
Poor airtightness: Natural rubber has poor airtightness and is not suitable for applications that require high airtightness.