Conveyor roller high temperature resistant acid and alkali resistant rubber coated layer

Abstract

The invention discloses a conveyor roller high temperature resistant acid and alkali resistant rubber coated layer which consists of the following components by weight: 70-90 parts of methyl vinyl phenyl silicone rubber, 60-80 parts of nitrile rubber, 25-35 parts of rubber and plastic alloy, 8-12 parts of polypropylene resin, 10-13 parts of thermosetting epoxy resin, 2-3.5 parts of tetramethylthiuramdisufide, 1-1.4 parts of disulfide dibenzothiazole, 20-25 parts of high abrasion furnace black, 8-20 parts of dioctyl phthalate or dibutyl phthalate, 3-4 parts of N-isopropyl-N'-phenyl para-phenylene diamine and 10-20 parts of barium sulfate. Compared with the prior art, the rubber coated layer can keep original physical and mechanical properties for a long time under the action of acid and alkali bath, and has high temperature resistant characteristics.

Description

[0001] technical field [0002] The invention relates to the technical field of conveyors, in particular to a high temperature, acid and alkali resistant rubber coating layer for a conveyor roller. Background technique [0003] The rubber coating layer of the existing ordinary rollers cannot work in chemicals such as acid, alkali, and salt solution. When the rubber coating layer of ordinary rollers is in contact with acid, alkali, and salt solution, it will cause corrosion, cause rubber swelling, and produce rubber molecules. Fracture, depolymerization, and decomposition and dissolution of compounding agents lead to a significant decrease in its mechanical strength and physical properties, and the rubber layer gradually becomes sticky, oxidized, hardened, embrittled, cracked, etc., and cracks occur due to the attack of ozone. So that the corrosion completely loses the ability to work. [0004] The rubber gasket of the existing conventional technology uses nitrile rubber as ...

AI Technical Summary

Problems solved by technology

[0003] The rubber coating layer of the existing ordinary rollers cannot work in chemicals such as acid, alkali, and salt solution. When the rubber coating layer of ordinary rollers is in contact with acid, alkali, and salt solution, it will cause corrosion, cause rubber swelling, and produce rubber molecules. Fracture, depolymerization, and decomposition and dissolution of compounding agents lead to a significant decrease in its mechanical strength and physical properties, and the rubber layer gradually becomes sticky, oxidized, hardened, embrittled, cracked, etc., and cracks occur due to the attack of ozone. So that the corrosion completely loses the ability to work

[0004] The rubber gasket of the existing conventional technology uses nitrile rubber as the base, and other materials are added to achieve the purpose of oil resistance, but its high temperature resistance is not strong. In order to improve its high temperature resistance and make the oil resistance and high temperature resistance reach a balance point, now provide A new technical solution