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Light high-strength brominated butyl rubber gas tightness material and preparation method and application thereof

A technology of bromobutyl rubber and air tightness, which is applied in the field of material synthesis and processing, and organic chemical synthesis, can solve the problems of reducing the service life of rubber, high cost of graphene preparation, and destroying the air tightness of rubber, so as to achieve enhanced air tightness. Tightness, reduce dust pollution, reduce the effect of density and hardness

Active Publication Date: 2014-01-08
青岛美泰塑胶有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The defects are: the traditional processing method generally adds 30-80 parts of carbon black or white carbon black as a reinforcing agent, too much inorganic filler increases the density and hardness of the rubber, and destroys the airtightness of the rubber. It is also easy to cause dust pollution in the process; in order to reduce the hardness, excessive addition of plasticizer often reduces the service life of rubber
However, the preparation cost of graphene is high, and it is easy to agglomerate and cannot exist stably under general conditions, which greatly limits its industrial application.

Method used

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  • Light high-strength brominated butyl rubber gas tightness material and preparation method and application thereof
  • Light high-strength brominated butyl rubber gas tightness material and preparation method and application thereof
  • Light high-strength brominated butyl rubber gas tightness material and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0031] The ratio of raw materials is: including 100 parts of bromobutyl rubber, 1.5 parts of modified graphene oxide, 6 parts of zinc oxide, 1.5 parts of stearic acid, 0.4 parts of accelerator TMTD and 0.3 parts of accelerator DM;

[0032] The preparation method is:

[0033] The first step: preparation of modified graphene oxide

[0034] Weigh graphene oxide and octadecylamine of equal mass, then place graphene oxide in a beaker, add water and disperse with 100W power ultrasonic vibration for 3 hours to obtain a uniform dispersion; fully dissolve octadecylamine in dimethylformamide ( Generally, 1g of octadecylamine needs 100ml of dimethylformamide; transfer the two liquids obtained above to a three-neck flask and react at reflux for 22h at 100°C, vacuum filter the product, and wash it with ethanol Filter 5 times, place in a vacuum drying oven at 60°C and dry to constant weight to obtain modified graphene oxide;

[0035] The second step: disperse the modified graphene oxide i...

Embodiment 5

[0050] It can be seen from the table that compared with traditional reinforcing agents, the use of modified graphene oxide to reinforce bromobutyl rubber can effectively reduce the density and hardness of rubber, improve the air tightness of rubber and reduce dust pollution. . Under the same air tightness requirements, the amount of rubber used can be greatly reduced, thereby reducing product weight and cost.

[0051] figure 1 It is the monolithic structure diagram of graphene oxide dispersed in N,N-dimethylformamide under the transmission electron microscope; from figure 1 The physical form of exfoliated graphene oxide can be seen in the figure, and graphene oxide dispersed in N,N-dimethylformamide (DMF for short) can be observed to present stacked sheets with curled edges. It can also be observed that certain sites exhibit a wrinkled morphology, or folds, which lowers the surface energy and stabilizes it.

[0052] figure 2 It is the distribution figure of 1.5 parts of m...

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Abstract

The invention discloses a light high-strength brominated butyl rubber gas tightness material, and a preparation method and application of the light high-strength brominated butyl rubber gas tightness material. The preparation method includes the steps of fully dissolving and dispersing, by weight, 100 parts of brominated butyl rubber into modified graphene oxide with the part larger than 0 and smaller than or equal to 2, then, adding 6 parts of zinc oxide, 1.5 parts of stearic acid, 0.3 part of accelerator 2, 2'-dithio-dibenzo thiazole and 0.4 part of accelerator tetramethylthiuram disulfide into the mixture, and conducting banburying and vulcanization to obtain the light high-strength brominated butyl rubber gas tightness material. The method is used for producing and processing the light high-strength brominated butyl rubber gas tightness material which is high in strength and good in air tightness, small in use amount of the accelerators and small in density. The material can be widely applied to various fields especially the fields with high requirements for gas tightness.

Description

Technical field: [0001] The invention relates to the field of organic chemical synthesis, in particular to the processing of high-strength and high-air-tightness rubber materials, and belongs to the field of material synthesis and processing. Background technique [0002] Bromobutyl rubber is a brominated product of butyl rubber, which has excellent air tightness, vulcanization performance and aging resistance, and is generally used as an airtight material. Especially widely used in automobile tire inner tubes, air cushions, sealing rings, gas storage materials, etc. The current method for preparing bromobutyl rubber tightness materials is: the general processing method at this stage is to use zinc oxide vulcanization system to vulcanize, use carbon black or white carbon black as a reinforcing agent to enhance the mechanical strength of rubber, add plasticizer, Anti-aging agent, etc. to improve performance. The defects are: the traditional processing method generally adds ...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08K13/06C08K9/04C08K3/04C08K3/22C08K5/09C08K5/47C08K5/40B29C35/02
CPCC08K3/04C08K9/04C08K13/06C08L23/283
Inventor 刘欣梁雷何海峰赵丽芬靳涛
Owner 青岛美泰塑胶有限公司
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