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Rubber material with damping capacity

A rubber material and performance technology, which is applied in the field of blending and vulcanization technology to prepare high-performance damping rubber materials, can solve the problems of rubber materials lacking high-performance damping, rubber materials with poor wear resistance, and fatigue resistance. Achieve high body stress and mechanical strength, excellent fatigue resistance and high damping performance

Inactive Publication Date: 2010-02-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many domestic researches on chlorinated butyl rubber, polyurethane, and polyacrylate materials, but the above-mentioned rubber materials generally have problems such as wear resistance, fatigue resistance, and poor comprehensive mechanical properties. Damping rubber materials, so the development of rubber materials with high performance damping has become an urgent task for my country's rubber industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The proportioning mass parts of embodiment 1 are:

[0018] 10 parts of eucommia gum, 10 parts of sizing additive 1 is natural rubber, 10 parts of sizing additive 2 is polyacrylate, 1.5 parts of tetramethyldithiothiuram TMTD as sulfur accelerator, 1 part of zinc oxide, hard 1 part of fatty acid, 10 parts of carbon black, 1 part of sulfur.

[0019] The preparation steps are as follows:

[0020] Step 1: According to the above-mentioned distribution ratio of each component, each raw material is blended at 50°C on a two-roller for ordinary rubber processing;

[0021] Step 2: Heat the material mixed in Step 1 on a flat vulcanizer to obtain a damping material, the vulcanization temperature is 150°C, and the vulcanization pressure is 110MPa.

[0022] The performance index of this embodiment:

[0023] Tensile strength (MPa) ≥12

[0024] Elongation at break (%) ≥450

[0025] Residual deformation (%) ≥20

[0026] Dynamic tensile fatigue (min) >120

[0027] Wear (mg / min) <8 ...

Embodiment 2

[0030] The proportioning mass parts of embodiment 2 are:

[0031] 50 parts of eucommia gum, 90 parts of nitrile rubber as sizing additive 1, 90 parts of polyvinyl chloride as sizing additive 2, 4 parts of dibenzothiazole disulfide DM as sulfur-containing accelerator, 5 parts of zinc oxide, stearic acid 5 parts, 50 parts graphite, 5 parts sulfur.

[0032] The preparation steps are as follows:

[0033] Step 1: According to the above-mentioned distribution ratio of each component, each raw material is blended at 70°C on a two-roller for ordinary rubber processing;

[0034] Step 2: The material mixed in step 1 is heated on a flat vulcanizer to obtain a damping material, the vulcanization temperature is 150°C, and the vulcanization pressure is 140MPa.

[0035] The performance index of this embodiment:

[0036] Tensile strength (MPa) ≥10

[0037] Elongation at break (%) ≥500

[0038] Residual deformation (%) ≥18

[0039] Dynamic tensile fatigue (min) ≥140

[0040] Wear (mg / mi...

Embodiment 3

[0043] The proportioning mass parts of embodiment 3 are:

[0044] 20 parts of Eucommia gum, 20 parts of chlorobutyl rubber as sizing additive 1, 30 parts of polyurethane as sizing additive 2, 1.5 parts of N-cyclohexyl-2-benzothiazole sulfenamide CZ as the sulfur-containing accelerator, 3 parts of zinc oxide, 4 parts of stearic acid, ceramic: 40 parts, 3 parts of sulfur.

[0045] The preparation steps are as follows:

[0046] Step 1: According to the above-mentioned distribution ratio of each component, the raw materials are blended at 60°C on a two-roller for ordinary rubber processing; Step 2: The material mixed in Step 1 is heated on a flat vulcanizer to obtain a damping material, and the vulcanization temperature is At 180°C, the vulcanization pressure is 120MPa.

[0047] The performance index of this embodiment:

[0048] Tensile strength (MPa) ≥12

[0049] Elongation at break (%) ≥500

[0050] Residual deformation (%) ≥14

[0051] Dynamic tensile fatigue (min) ≥150 ...

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Abstract

The invention relates to a rubber material with damping capacity which is characterized in that the rubber material comprises the following components in parts by weight: 10-50 parts of eucommia ulmoides gum, 10-90 parts of rubber material additive 1, 10-90 parts of rubber material additive 2, 1-4 parts of sulfur-containing promoter, 1-5 parts of zinc oxide, 1-5 parts of stearic acid, 5-50 parts of piezoelectric additive and 1-5 parts of sulfur. The rubber material additive 1 is one or two of natural rubber, chlorobutyl rubber, nitrile-butadiene rubber, styrene-butadiene rubber and ethylene propylene rubber and the rubber material additive 2 is one or two of polyacrylate, polyurethane and polyvinyl chloride. The rubber material with damping capacity is mainly characterized by high dampingcapacity, good wearability, excellent anti-fatigue property and good comprehensive mechanical properties and is the ideal rubber material used for relieving mechanical oscillation caused and reducingnoise.

Description

technical field [0001] The invention relates to a rubber material with damping performance, which uses natural macromolecular substance eucommia gum as a characteristic raw material, and adopts a blending vulcanization technology method to prepare a high-performance damping rubber compound. Background technique [0002] High-performance damping materials, that is, materials with high damping value in a wide temperature range, fatigue resistance, high wear resistance and good comprehensive mechanical properties, are currently the hotspot of damping material research in the world. The purpose of the research is to reduce mechanical vibration and reduce noise. One of the key measures to solve this problem is to develop materials that can meet the requirements of high-performance damping through the synthesis and processing of new rubbers. At present, there are many domestic researches on chlorinated butyl rubber, polyurethane, and polyacrylate. However, the above-mentioned rub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L23/28C08L9/02C08L9/06C08L23/16C08L33/08C08L75/04C08L27/06B29C35/02
Inventor 岳红陈冲杨青芳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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