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

A technology of cell size and rubber foaming, which is applied to tubular objects, applications, household appliances, etc., can solve the problems of complex production process, insufficient vulcanization degree, high energy consumption, etc., and achieve long scorch time, fast vulcanization speed, and surface The effect of high smoothness

CN107118450AInactive Publication Date: 2017-09-01NANJING ORIENTLEADER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-09-01
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment

[0035] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0036] The formula of the rubber foam hose for charging roller with high elasticity and uniform cell size in Examples 1-3 is shown in Table 1, and it is prepared by the following method: adding ultra-fast vulcanized EPDM to the internal mixer at the same time Propylene rubber and high elastic EPDM rubber, stir and heat for 50-70s, add zinc oxide, stearic acid, foaming agent, deodorant, anti-aging agent and dehumidifier, continue mixing for 30-40s, add filler Mix with plasticizer, continue to stir and heat for 100-120s, when the temperature reaches 90°C, add vulcanizing agent and vulcanization aid, continue stirring, when the temperature of the internal mixer reaches 105-110°C, stop stirring and heating, deglue The obtained mixed rubber is thinly passed on the open mill for 3 to 5 times to produce a rubber strip. After the rubber strip passes through ...