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Rubber diaphragm synthetic material for pressure-bearing gas pressure regulator, and preparation method of rubber diaphragm synthetic material

A technology for gas pressure regulators and synthetic materials, applied in mechanical equipment, functional valve types, balance valves, etc., can solve the problems that rubber diaphragms cannot meet the requirements of high-pressure gas pressure regulators, and achieve improved physical and mechanical properties and compression permanent deformation small size, good thermal stability

Active Publication Date: 2012-09-12
BEIJING GAS GRP +1
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of rubber diaphragm material of pressurized gas pressure regulator and its preparation method, to solve the technical problem that the existing rubber diaphragm cannot meet the high-pressure gas pressure regulator; and to solve the performance of improving the rubber diaphragm, Prolonging the Service Life of Rubber Diaphragms and Reducing Costs

Method used

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  • Rubber diaphragm synthetic material for pressure-bearing gas pressure regulator, and preparation method of rubber diaphragm synthetic material
  • Rubber diaphragm synthetic material for pressure-bearing gas pressure regulator, and preparation method of rubber diaphragm synthetic material
  • Rubber diaphragm synthetic material for pressure-bearing gas pressure regulator, and preparation method of rubber diaphragm synthetic material

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Embodiment

[0028] Embodiment sees the following table: the present invention is described in detail below by general diaphragm formula and embodiment formula:

[0029] Rubber diaphragm general formula and the embodiment formula of the present invention

[0030]

[0031] Note: Nitrile rubber: domestic; Chlorinated polyethylene: domestic; other conventional reagents are commercially available.

[0032] Among them, silica is a reinforcing agent; stearic acid and zinc oxide are activators; DOP is a general-purpose plasticizer; light calcium carbonate is a filler; paraffin is also one of the anti-aging agents, and its main function is to improve ozone resistance. , anti-aging; CZ and TT are vulcanization accelerators; sulfur S is a vulcanization agent.

[0033] The preparation process of above-mentioned each embodiment formula is as follows:

[0034] (1) The first stage of mixing: add nitrile rubber and chlorinated polyethylene and knead for 0.5-1min at 50-80℃, then add zinc oxide, stear...

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Abstract

The invention relates to a rubber diaphragm synthetic material for a pressure-bearing gas pressure regulator, and a preparation method of the rubber diaphragm synthetic material. The rubber diaphragm synthetic material for the pressure-bearing gas pressure regulator comprises the following components in part by weight: 70-90 parts of nitrile rubber, 30-10 parts of chlorinated polyethylene, 10-30 parts of plasticizer, 30-50 parts of silica, 6-10 parts of vulcanizing agent and vulcanization accelerator and the balance of being other processing aids. According to the preparation method, the nitrile rubber and the chlorinated polyethylene are used as a main body, and simultaneously, an acid-filler material and a mineral oil type softener are avoided being used; in vulcanization system, low sulfur and high accelerator, peroxides and other series are adopted, so that the solubility resistance is ensured on the basis of ensuring certain elasticity; according to the rubber membrane obtained from the components by the method provided by the invention, the energy consumption is low in the rubber mixing process, the dimensional stability of an extrudate is good, the rubber surface quality is good, and under the premise of ensuring the processing performance, the performance of the rubber membrane is improved, an the service life of the rubber membrane is prolonged.

Description

technical field [0001] The invention relates to a rubber diaphragm material and a preparation method thereof. Background technique [0002] In the process of gas transmission, as a gas pressure regulator to control gas pressure, it is required to have good pressure stability and sensitivity. At present, the rubber diaphragm of domestic gas pressure regulator is suitable for gas pressure regulator products with working pressure below 0.2MPa. , the main rubber material is nitrile rubber, nitrile rubber has excellent oil resistance, its oil resistance is second only to polysulfide rubber and fluorine rubber, and it has excellent wear resistance and air tightness, but nitrile rubber has poor ozone resistance , not resistant to ozone and aromatic, halogenated hydrocarbons, ketones and ester solvents, the performance is affected by the content of acrylonitrile, as the content of acrylonitrile increases, the elasticity and cold resistance decrease. With the development of the gas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/28C08K13/02C08K3/36C08K5/09C08K3/22C08K3/34C08K3/06F16K17/20
Inventor 车立新陈宏姜鑫刘学民陈文柳于森王凡王佩广
Owner BEIJING GAS GRP
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