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Rubber base damping material and preparation method thereof

A damping material and rubber-based technology, applied in the field of damping materials, can solve problems such as the increase of damping value, achieve the effect of widening the damping temperature range and improving the bubble phenomenon

Inactive Publication Date: 2011-08-03
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Journal of Applied Polymer Science reported CIIR / polyacrylate (PAc) blends (Effect of miscibility and forced compatibility on damping properties of CIIR / PAc blend-compatibility and forced mutual compatibility on CIIR / PAc) in volume 102 in 2006 The effect of PAc blends on the damping properties), in which it was found that co-vulcanization has the effect of forced mutual compatibility, so that the damping peaks of CIIR and polyacrylate are suppressed, but it is also proposed that co-vulcanization can increase the damping value between the two peaks.

Method used

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  • Rubber base damping material and preparation method thereof
  • Rubber base damping material and preparation method thereof
  • Rubber base damping material and preparation method thereof

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Embodiment 1

[0028] At room temperature, mix 50 parts of EPDM rubber and 50 parts of petroleum resin on the open mill evenly, add 3 parts of stearic acid and 3 parts of dicumyl peroxide, thin pass and make triangular bags 8 times, and then put The roller distance is adjusted to 2mm, and the film is released, and it is parked for 24 hours for use. And at room temperature, mix 50 parts of nitrile rubber and 50 parts of phenolic resin on the open mill evenly, add 3 parts of paraffin, thin pass and make a triangular bag 8 times, adjust the roller distance to 2mm, and leave the sheet for 24 hours . Afterwards, the above-mentioned EPDM rubber / petroleum resin compound rubber and the above-mentioned nitrile rubber / phenolic resin compound rubber were thinly passed on the open mill and made a triangular bag for 10 times, and the roll distance was adjusted to 2mm to produce the sheet, and quickly Place it on a flat vulcanizing machine, mold it at a temperature of 170°C and a pressure of 10MPa for 20...

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Abstract

The invention relates to a rubber base damping material and a preparation method thereof, belonging to the technical field of damping materials. The damping material prepared by a method of rapid blending and hot-press forming comprises the following components: ethylene propylene rubber, butadiene nitrile rubber, petroleum resin, phenolic resin, a peroxide vulcanizing agent and a plasticizer; and the rubber base damping material can effectively widen the damping temperature range while keeping the original damping peak value not to obviously drop.

Description

technical field [0001] The invention relates to a material in the technical field of damping materials and its preparation, in particular to a polar / non-polar rubber-based damping material and a preparation method thereof. Background technique [0002] The reduction and elimination of harmful vibration and noise is of great significance to rail transit, buildings, precision instruments and other fields. The viscoelasticity of rubber endows it with excellent damping performance, which can be conveniently characterized by the loss tangent (tanδ, damping value)-temperature scanning spectrum of a dynamic mechanical analyzer. However, the effective damping temperature range of rubber is too narrow (about 30°C), and it only appears at low temperature, which limits its application. [0003] In order to make the rubber have a wider damping value near room temperature, researchers at home and abroad have adopted a variety of modification methods, such as blending, copolymerization, ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L9/02C08L57/02C08L61/06C08K5/14C08K5/01C08K5/09
Inventor 马楠白鑫张勇
Owner SHANGHAI JIAO TONG UNIV
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