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Preparation process of chlorinated butadiene-nitrile rubber

A chlorinated nitrile rubber and manufacturing process technology, applied in the field of rubber materials, can solve the problems of large filling volume, affecting physical and mechanical properties and anti-aging performance, and achieve good spraying performance and unique performance

Inactive Publication Date: 2015-07-08
ANHUI TONGFENG RUBBER & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its large filling amount, its physical and mechanical properties and anti-aging properties are seriously affected. However, with the development of the bonded magnet industry, we are required to pay attention not only to the magnetic properties of bonded magnets, but also to their physical and mechanical properties and anti-aging properties. Higher requirements have been put forward, so it is imperative to find an alternative solution method to produce chlorinated nitrile rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of manufacture technique of chlorinated nitrile rubber, is characterized in that: comprise the following steps,

[0021] 1) Raw material preparation: add 220 parts of natural rubber, 20 parts of surfactant and 100 parts of water medium into the chlorinator, then add concentrated hydrochloric acid into the chlorinator, feed chlorine gas at a room temperature of 18°C, and react for 2 hours , and then irradiated by a high-pressure mercury lamp, the temperature was raised to 80°C, chlorine gas was introduced, and the reaction was carried out for 4 hours;

[0022] 2) Plasticizing plastics: inject compressed air into the reaction vessel, and the temperature of the compressed air is 60°C;

[0023] 3) Mixing of rubber materials: add 50 parts of nitrile rubber compound rubber, 30 parts of hydrogenated nitrile rubber, and 10 parts of silicone rubber into the reaction vessel, add stearic acid, accelerator and zinc oxide and mix for 5 minutes, then add magnetic powder , Rei...

Embodiment 2

[0027] A kind of manufacture technique of chlorinated nitrile rubber, is characterized in that: comprise the following steps,

[0028] 1) Raw material preparation: add 250 parts of natural rubber, 40 parts of surfactant and 120 parts of water medium into the chlorinator, then add concentrated hydrochloric acid into the chlorinator, feed chlorine gas at room temperature at 18°C, and react for 3.5 h, then irradiated by a high-pressure mercury lamp, the temperature was increased to 80°C, chlorine gas was introduced, and the reaction was carried out for 6 hours;

[0029] 2) Plasticizing of rubber: put compressed air into the reaction vessel, the temperature of the compressed air is 75°C;

[0030] 3) Mixing of rubber materials: add 80 parts of nitrile rubber compound rubber, 50 parts of hydrogenated nitrile rubber, and 20 parts of silicone rubber into the reaction vessel, add stearic acid, accelerator, zinc oxide and mix for 8 minutes, and then add magnetic powder , Reinforcing fi...

Embodiment 3

[0034] A kind of manufacture technique of chlorinated nitrile rubber, is characterized in that: comprise the following steps,

[0035] 1) Raw material preparation: add 235 parts of natural rubber, 30 parts of surfactant and 100-120 parts of water medium into the chlorinator, then add concentrated hydrochloric acid into the chlorinator, and feed chlorine gas at a room temperature of 18°C. React for 2.5 hours, then irradiate with a high-pressure mercury lamp, raise the temperature to 80°C, inject chlorine gas, and react for 5 hours;

[0036] 2) Rubber compounding: pass compressed air into the reaction vessel, the temperature of the compressed air is 70°C;

[0037] 3) Mixing of rubber materials: add 65 parts of nitrile rubber compound rubber, 40 parts of hydrogenated nitrile rubber, and 15 parts of silicone rubber into the reaction vessel, add stearic acid, accelerator, zinc oxide and mix for 6 minutes, and then add magnetic powder , Reinforcing filler, and anti-aging agent cont...

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PUM

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Abstract

The invention discloses a preparation process of chlorinated butadiene-nitrile rubber and relates to the technical field of rubber materials. The preparation process comprises the following steps: (1) preparing raw materials; (2) plastifying a rubber material; (3) mixing the rubber material; (4) forming the rubber material; and (5) vulcanizing the rubber material. The chlorinated butadiene-nitrile rubber material prepared by the process is good in fire resistance, capable of delaying ignition, high in strength, excellent in mechanical property, and good in wear resistance, and magnetic powder, a reinforcing filler and an anti-aging agent are added into the rubber material to ensure a better heat-resistant effect; and the preparation process is simple and easy to master.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a manufacturing process of chlorinated nitrile rubber. Background technique [0002] Chlorinated nitrile rubber is an important rubber derivative in industry. It is widely used in architectural anti-corrosion coatings and marine paint spraying because of its unique water-resistance and flame retardancy. Most of the industrial production of chlorinated nitrile rubber today adopts the solution method, that is, the natural rubber is dissolved in an organic inert solvent containing chlorine, and chlorine is chlorinated in the presence of a catalyst. Although this method is relatively mature, a large amount of chlorinated organic solvent is needed to produce chlorinated nitrile rubber by this method, and it is very difficult to separate and recover the solvent from the product. If it volatilizes into the atmosphere, it will endanger human health, And destroy the ozone layer ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/02C08L15/00C08L83/04C08L15/02C08K13/02C08K5/09C08K3/22C08K3/06C08K3/04C08K3/26C08K5/3437C08K5/37B29C35/02
CPCC08L7/00B29C35/02C08L2201/08C08L2205/035C08L9/02C08L15/00C08L83/04C08L15/02C08K13/02C08K5/09C08K2003/2296C08K3/2279C08K3/06C08K3/04C08K3/26C08K5/3437C08K5/37
Inventor 项宗武
Owner ANHUI TONGFENG RUBBER & PLASTIC IND
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