Time：2019-09-11 17:46:25View：次
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(butyl rubber) is polymerized from isobutylene and a small amount of isoprene, with a small amount of unsatisfied base for sulfur addition. Because the movement of the three-dimensional barrier molecules of methyl is less than that of other polymers, the gas permeability is less, the resistance to heat, sunlight and ozone is large, and the electrical insulation is good; the resistance to polar solvents such as alcohol, ketone and ester is large, and the general use temperature range is - 54 ~ 110 ℃.
Advantage:
Impermeability to most general gases
Good resistance to sunlight and ozone
Can be exposed to animal or vegetable oils or oxidizing chemicals
Disadvantages:
It can be used together with petroleum solvent, gum kerosene and aromatic hydrogen.
Application fields:
It is often used to make rubber parts of chemical resistant and vacuum equipment.
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