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Method for preparing chlorinated butyl rubber damping material

A technology of chlorinated butyl rubber and damping material, applied in the field of rubber damping material, can solve the problems of limitation and low vibration damping performance, and achieve the effect of improving performance, improving strength and wide application range

Inactive Publication Date: 2011-04-27
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this kind of damping material is used for devices or equipment with low working environment temperature, such as when the working temperature range is -40°C to 40°C, its vibration damping performance is not outstanding, and its application is limited

Method used

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  • Method for preparing chlorinated butyl rubber damping material
  • Method for preparing chlorinated butyl rubber damping material

Examples

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preparation example Construction

[0020] The invention provides a kind of preparation method of chlorinated butyl rubber damping material, comprises the following steps:

[0021] Mixing chlorinated butyl rubber, C5 / C9 copolymerized petroleum resin, filler, zinc oxide, 2,2-dithiobenzothiazole and tetramethylthiuram disulfide to obtain a rubber compound, the butyl chloride The mass ratio of the base rubber to the C5 / C9 copolymerized petroleum resin is 75-85: 15-25;

[0022] The rubber material is vulcanized to obtain a chlorinated butyl rubber damping material.

[0023] The invention prepares the chlorinated butyl rubber damping material by blending the chlorinated butyl rubber and C5 / C9 copolymerized petroleum resin, and the temperature range of the effective damping function zone of the obtained damping material is -40 DEG C to 40 DEG C, and the application range is relatively wide.

[0024] In the invention, firstly, chlorinated butyl rubber, C5 / C9 copolymerized petroleum resin, filler, zinc oxide, 2,2-dithi...

Embodiment 1

[0036] Put 75 grams of chlorinated butyl rubber and 15 grams of C5 / C9 copolymerized petroleum resin into the internal mixer, knead for 3 to 5 minutes, then add 15 grams of white carbon black, knead for 3 to 5 minutes, and then put 3 grams of zinc oxide, 0.5 grams of 2,2-dithiobenzothiazole and 0.4 grams of tetramethylthiuram disulfide were mixed for 3 to 5 minutes to obtain a rubber compound. Preheat a 1 mm thick mold in a flat vulcanizer at 156°C for 30 minutes, then put the rubber into the mold and vulcanize at 156°C and 12MPa for 30 minutes to obtain chlorobutyl rubber and C5 / C9 Copolymerized petroleum resin damping rubber sheet.

[0037] The damping rubber sheet is analyzed by a damping analyzer, and the results can be found in figure 1 , figure 1 The damping spectrum of the chlorinated butyl rubber damping material provided in the examples and comparative examples of the present invention, wherein, curve a is the damping spectrum of the chlorinated butyl rubber damping...

Embodiment 2

[0039] Put 85 grams of chlorinated butyl rubber and 25 grams of C5 / C9 copolymerized petroleum resin into an internal mixer, knead for 3 to 5 minutes, then add 20 grams of white carbon black, knead for 3 to 5 minutes, and then put 5 g of zinc oxide, 1 g of 2,2-dithiobenzothiazole, and 0.6 g of tetramethylthiuram disulfide were mixed for 3 to 5 minutes to obtain a rubber compound. Preheat a 1 mm thick mold in a flat vulcanizer at 160°C for 30 minutes, then put the rubber into the mold and vulcanize at 160°C and 15MPa for 30 minutes to obtain chlorobutyl rubber and C5 / C9 Copolymerized petroleum resin damping rubber sheet.

[0040] The damping rubber sheet is analyzed by a damping analyzer, and the results can be found in figure 1 , figure 1 The damping spectrum of the chlorinated butyl rubber damping material provided in the examples and comparative examples of the present invention, wherein, curve b is the damping spectrum of the chlorinated butyl rubber damping material prov...

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Abstract

The invention provides a method for preparing a chlorinated butyl rubber damping material, comprising the following steps of: mixing chlorinated butyl rubber, C5 / C9 copolymerized petroleum resin, padding, zinc oxide, 2,2-dithio benzothiazole and tetramethyl thiuram disulfide to obtain a sizing material, wherein the mass ratio of the chlorinated butyl rubber to the C5 / C9 copolymerized petroleum resin is (75-85):(15-25); and carrying out vulcanization on the sizing material to obtain the chlorinated butyl rubber damping material. In the invention, when the mass ratio of the chlorinated butyl rubber to the C5 / C9 copolymerized petroleum resin is (75-85):(15-25), the temperature of the effective damping functional area of the obtained damping material is -40 DEG C to 40 DEG C; the temperature area is wider and covers higher temperature and lower temperature; therefore, the obtained damping material can be applied to the device or the equipment with a working temperature of -40 DEG C to 40 DEG C and has wider application range. Furthermore, the preparation method provided by the invention is simple in processing and easy for realizing the industrial production.

Description

technical field [0001] The invention belongs to the technical field of rubber damping materials, in particular to a preparation method of chlorinated butyl rubber damping materials. Background technique [0002] With the rapid development of modern industry, transportation and aerospace industry, mechanical equipment tends to be high-speed and automatic, and the resulting vibration problems are becoming more and more serious. For example, vibration not only affects the stability and reliability of mechanical equipment, but also endangers people. physical and mental health. Damping technology is an effective method to control structural resonance. Damping materials can convert solid mechanical vibration energy into heat energy and dissipate it, thereby reducing vibration. Rubber materials are widely used as damping materials due to their unique viscoelastic damping properties. [0003] Chlorobutyl rubber has good aging resistance and weather resistance, and is a traditional...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L57/02C08K13/02C08K3/22C08K5/47C08K5/40C08J3/24
Inventor 白福臣于力温诗渺庄婷婷
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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