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Synthetic rubber and preparation method thereof

A synthetic rubber and rubber technology, applied in the field of synthetic rubber and its preparation, can solve the problems of good tensile properties and aging resistance, and achieve the effects of good aging resistance, improved tensile strength, and scientific and reasonable raw material formula.

Inactive Publication Date: 2020-01-03
湖北可兴鞋业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing synthetic rubber cannot meet the requirements of good tensile properties and good aging resistance

Method used

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  • Synthetic rubber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1, the synthetic rubber of present embodiment, adopts the raw material of following parts by weight to make: 17 parts of nitrile rubbers, 13 parts of isopropyl rubbers, 9 parts of MQ resins, 7 parts of ester plasticizers, 7 parts of silane coupling agents 3 parts, 3 parts of stearic acid, 3 parts of carbon black, 1.5 parts of foaming agent, 1.5 parts of anti-aging agent, 3-5 parts of vulcanizing agent.

[0019] 2. Preparation method:

[0020] Step 1. Add 17 parts of nitrile rubber and 13 parts of isopropyl rubber into the rubber mixer for mixing, then add 7 parts of silane coupling agent and continue mixing until the mixture is uniform to obtain a slurry;

[0021] Step 2, heating the mixed slurry to 145°C, adding 3 parts of stearic acid, and kneading to obtain a mixed solution;

[0022] Step 3. After the temperature of the mixture is stable, add 9 parts of MQ resin and 7 parts of ester plasticizer, and stir evenly to obtain a semi-solid;

[0023] Step 4. Add 3 parts o...

Embodiment 2

[0025] 1, the synthetic rubber of present embodiment, adopts the raw material of following parts by weight to make: 18 parts of nitrile rubbers, 12 parts of isopropyl rubbers, 8 parts of MQ resins, 6 parts of ester plasticizers, 6 parts of silane coupling agents 2 parts, 2 parts of stearic acid, 2 parts of carbon black, 2 parts of foaming agent, 2 parts of antioxidant, 3 parts of vulcanizing agent.

[0026] 2. Preparation method:

[0027] Step 1. Add 18 parts of nitrile rubber and 12 parts of isopropyl rubber into the rubber mixer for mixing, then add 6 parts of silane coupling agent and continue mixing until the mixture is uniform to obtain a slurry;

[0028] Step 2, heating the mixed slurry to 140°C, adding 2 parts of stearic acid, and kneading to obtain a mixed solution;

[0029] Step 3. After the temperature of the mixture is stable, add 8 parts of MQ resin and 6 parts of ester plasticizer, and stir evenly to obtain a semi-solid;

[0030] Step 4. Add 2 parts of carbon bl...

Embodiment 3

[0032] 1, the synthetic rubber of present embodiment, adopts the raw material of following parts by weight to make: 16 parts of acrylonitrile-butadiene rubber, 15 parts of isopropyl rubber, 10 parts of MQ resin, 8 parts of ester plasticizers, 8 parts of silane coupling agent 4 parts, 4 parts of stearic acid, 4 parts of carbon black, 4 parts of foaming agent, 4 parts of antioxidant, 5 parts of vulcanizing agent.

[0033] 2. Preparation method:

[0034] Step 1. Add 16 parts of nitrile rubber and 15 parts of isopropyl rubber into the rubber mixer for mixing, then add 8 parts of silane coupling agent and continue mixing until the mixture is uniform to obtain a slurry;

[0035] Step 2, heating the mixed slurry to 150°C, adding 4 parts of stearic acid, and kneading to obtain a mixed solution;

[0036] Step 3. After the temperature of the mixture is stable, add 10 parts of MQ resin and 8 parts of ester plasticizer, and stir evenly to obtain a semi-solid;

[0037] Step 4. Add 4 part...

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Abstract

The invention discloses synthetic rubber comprising the following raw materials in parts by weight: 16-18 parts of butadiene-acrylonitrile rubber, 12-15 parts of isopropyl rubber, 8-10 parts of MQ resin, 6-8 parts of an ester plasticizer, 6-8 parts of a silane coupling agent, 2-4 parts of stearic acid, 2-4 parts of carbon black, 2-4 parts of a foaming agent, 2-4 parts of an anti-aging agent and 3-5 parts of a vulcanizing agent. The invention also provides a preparation method of the synthetic rubber. The synthetic rubber provided by the invention is scientific and reasonable in raw material formula; the tensile strength, the tensile elongation and the tearing strength are obviously improved relative to a contrast example; according to the synthetic rubber provided by the embodiments 1-3 ofthe invention, the tensile strength reaches 18.5-20.4 MPa, the tearing strength reaches 31-35 kN*m<-1>, the tensile elongation reaches 409-435%, and meanwhile, the aging resistance is also improved.

Description

technical field [0001] The invention relates to the technical field of inorganic materials, in particular to a synthetic rubber and a preparation method thereof. Background technique [0002] Synthetic rubber is a highly elastic polymer that is artificially synthesized. Also known as synthetic elastomer, it is one of the three major synthetic materials, and its output is only lower than that of synthetic resin (or plastic) and synthetic fiber. Rubber is a necessary material for the manufacture of aircraft, warships, automobiles, tractors, harvesters, irrigation and drainage machinery, medical equipment, etc. According to different sources, rubber can be divided into natural rubber and synthetic rubber. There are a few varieties of synthetic rubber that are similar to natural rubber in performance, and most of them are different from natural rubber, but both are high-elastic polymer materials, and generally need to be vulcanized and processed before they have practicality a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/16C08L83/04C08K13/02C08K3/04C08K5/09C08J9/04
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/04C08J2309/02C08J2423/16C08J2483/04
Inventor 明瑞星
Owner 湖北可兴鞋业有限公司
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