A 120 ℃ aging butady/polyvinyl chloride rubber composition

Abstract

The invention develops a 120-DEG C aging-resistant nitrile / polyvinyl chloride rubber composition which mainly comprises nitrile / polyvinyl chloride rubber, ester ether ADB-30, polyester adipate and fast extruding carbon black; through the development of a formula and the preparation of a rubber tube, the fuel B and 93# gasoline resistance, the excellent elongation at break resisting a high temperature of 120 DEG C for above 500 hours and heat aging performance of a surplus and the performance of no crack at a low temperature of below 30 DEG C below zero required in product standards are better solved; the 120-DEG C aging-resistant nitrile / polyvinyl chloride rubber composition has greater advantages in aspects of cost and performance in comparison with imported sizing material; meanwhile, the high-temperature long-time aging resistance, the low-temperature performance and the user value of the rubber are also improved; the 120-DEG C aging-resistant nitrile / polyvinyl chloride rubber composition has important significance in better playing roles of a nitrile / polyvinyl chloride rubber material and a product thereof in the auto industry and other fields, the safety guarantee of the product is improved, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to an oil-resistant rubber hose, a nitrile / polyvinyl chloride rubber composition resistant to 120°C aging and long life cycle. Background technique [0002] In the automobile industry, machinery manufacturing, oil exploration, oil refining and other industrial production, it is necessary to use rubber hoses in the process of oil transmission such as gasoline, fuel oil, lubricating oil, hydraulic oil, etc. However, rubber hoses produced according to standard processes exist Insufficient oil resistance. If the rubber hose is soaked in oil medium for a long time during use, the oil can penetrate into the inside of the hose to cause swelling, resulting in a decrease in the strength and other mechanical properties of the rubber, causing the hose to collapse and block the pipeline. [0003] Nitrile / polyvinyl chloride rubber is a high molecular elastomer obtained by mechanically blending n...

AI Technical Summary

Problems solved by technology

[0002] In the automobile industry, machinery manufacturing, oil exploration, oil refining and other industrial production, it is necessary to use rubber hoses in the transmission process of gasoline, fuel oil, lubricating oil, hydraulic oil, etc. However, rubber hoses produced according to standard processes exist Lack of oil resistance

If the rubber hose is soaked in oil medium for a long time during use, the oil can penetrate into the inside of the hose to cause swelling, resulting in a decrease in the strength and other mechanical properties of the rubber, causing the hose to collapse and block the pipeline

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