High-elasticity and uniform-cell size foamed rubber hose composition for charging roller and preparation method of foamed rubber hose composition

Abstract

The invention belongs to the technical field of synthetic rubber and particularly relates to a high-elasticity and uniform-cell size foamed rubber hose composition for a charging roller and a preparation method of the foamed rubber hose composition. The high-elasticity and uniform-cell size foamed rubber hose composition is prepared from the following components in parts by weight: 10-50 parts of an ultra-fast vulcanized ethylene propylene diene monomer, 10-50 parts of a high-elasticity ethylene propylene diene monomer, 12-35 parts of a filler, 2-10 parts of a conductive agent, 10-25 parts of a plasticizer, 1-4 parts of a foaming agent, 3-6 parts of a vulcanizing agent and vulcanizing assistant, 1-3 parts of stearic acid, 4-7 parts of zinc oxide, 1-5 parts of an anti-aging agent, 1-3 parts of a deodorant an 3-5 parts of a dehumidizer. The preparation method of the foamed rubber hose composition is extruding continuous microwave vulcanization. The high-elasticity and uniform-cell size foamed rubber hose composition has the beneficial effects that post thermal stabilization treatment is not needed, the production efficiency is high and the prepared product is high in elasticity; the produced sponge-layer foamed rubber hose for the charging roller is high in elasticity, uniform in cell size, stable in foamed rubber hose size and resistance and relatively low in cost; a charging roller product is uniform in charging and stable in performance; the service life of the charging roller is prolonged; and good quality of a charging roller print product is ensured.

Description

technical field [0001] The invention belongs to the technical field of artificial rubber, and relates to a rubber foam hose composition for a charging roller with high elasticity and uniform cell size and a preparation method thereof. Background technique [0002] The molecular main chain of EPDM is a fully saturated carbon-carbon bond stable structure, so EPDM has good heat resistance. No matter under static or dynamic conditions, EPDM has good weather resistance and resistance Ozone aging performance, can be widely used in automotive parts, waterproof materials for construction, wire and cable sheaths, hose tapes, seals and other fields. [0003] The conductive foam tube of the charging roller has high requirements on its elasticity during use. Insufficient elasticity will greatly reduce the service life of the product and the use effect of the product; at the same time, the uniformity of the cell size of the conductive foam tube also affects the charging roller. An impor...

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Problems solved by technology

[0005] At present, the production methods of the sponge layer of the charging roller include mold pressing, steam and continuous extrusion hot air vulcanization, among which continuous extrusion hot air vulcanization is a more common production method, but the vulcanization is simple in the continuous production process and the degree of vulcanization is insufficient. Long-term heat treatment in the later period to ensure the degree of vulcanization and dimensional stability, such as the elastic layer in the patent report with application number 03113510.2, which needs to be heat stabilized at 160-180°C for 4-5 hours after cutting; application number After the elastic layer in the patent report of 200510002094.7 is cut, it needs to be thermally stabilized at 165-185°C for 3-4 hours after cutting the tube. The above-mentioned production process is complicated and consumes a lot of energy.

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