Damping rubber plate and preparation method thereof

A damping rubber sheet and nitrile rubber technology, applied in the field of damping materials, can solve the problems of small loss factor, environmental pollution of damping rubber sheet, etc., achieve good strength and anti-aging performance, simple production process and use method, and convenient use. Effect

Active Publication Date: 2013-10-16
QINGDAO AIR NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a damping rubber sheet and its preparation method to solve the problems of serious environmental pollution and small loss factor of the existing damping rubber sheet

Method used

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  • Damping rubber plate and preparation method thereof
  • Damping rubber plate and preparation method thereof
  • Damping rubber plate and preparation method thereof

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preparation example Construction

[0039] The preparation method of damping rubber plate comprises the following steps:

[0040] S1: First heat the nitrile rubber to 150℃~180℃, after the nitrile rubber is melted;

[0041] S2: Add mica powder, graphite powder, glass fiber and silane coupling agent, and mix well;

[0042] S3: Lower the temperature to 100-140°C, add powdered PVC, and mix well;

[0043] S4: Extrude the green block with an extruder, and then pass the green block through a double-roller calender to form a sheet with a thickness of 1.5-7.0 mm.

[0044] For the convenience of comparison, the thickness of the damping films in the embodiments of the present invention is 2.0 mm.

Embodiment 1

[0046] Heat 15 parts of nitrile rubber (Nipol) to a molten state, and the melting temperature is 150 ° C ~ 180 ° C, add 20 parts of 120 mesh mica powder, 15 parts of 2000 mesh graphite powder, 10 parts of glass fiber and 3 parts of silane coupling agent 2 -(3,4-epoxycyclohexyl)-ethyltrimethoxysilane, after mixing evenly, lower the temperature to 100°C, then add 15 parts of powdered PVC (3103), mix evenly, and extrude the embryo with an extruder block, and finally the embryo block is made into a sheet with a double-roller calender, and its thickness is 2.0mm.

Embodiment 2

[0048] Heat 25 parts of nitrile rubber (N41) to a molten state, the melting temperature is 150 ° C ~ 180 ° C, add 15 parts of 400 mesh mica powder, 5 parts of 800 mesh graphite powder, 5 parts of glass fiber and 1 part of silane coupling agent 3 - Aminopropyltrimethoxysilane, after mixing evenly, lower the temperature to 120°C, then add 10 parts of powdered PVC (3103), mix evenly, extrude the green block with an extruder, and finally roll the green block with double rollers Machined into sheets, the thickness of which was 2.0 mm.

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Abstract

The invention discloses a damping rubber plate which comprises the following main components in parts by weight: 15-40 parts of nitrile-butadiene rubber, 10-30 parts of PVC Polyvinyl Chloride), 15-45 parts of mica powder, 5-25 parts of graphite powder, 5-10 parts of glass fiber, and 1-5 parts of silane coupling agent. The invention further discloses a preparation method of the damping rubber plate. The damping rubber plate with a high damping value within different temperature region ranges can be obtained by adjusting the use amount of the components, and the damping rubber plate is free of an organic solvent, is safe and environment-friendly, and has no pollution to an environment.

Description

technical field [0001] The invention relates to the field of damping materials, in particular to a damping rubber plate used in noise and vibration control and a preparation method thereof. Background technique [0002] With the rapid development of China's automobile, ship, locomotive and other manufacturing industries and the promulgation of relevant national environmental protection regulations, the traditional damping materials using blankets and asphalt as damping rubber sheets can no longer meet the requirements of the market. The mechanism of vibration and noise reduction of polymer damping materials is mainly to use its unique viscoelasticity, which can convert kinetic energy into heat energy during the vibration process, thereby suppressing vibration. [0003] Most of the existing damping rubber sheets are solvent-based products, which seriously pollute the environment. Some environmentally friendly damping rubber sheets, such as acrylate modified damping rubber sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L27/06C08K7/14C08K3/34C08K3/04
Inventor 郭焱矫伟李永岗王伟杨生斌
Owner QINGDAO AIR NEW MATERIALS
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