High-hardness rubber composite for minitype automobile chassis buffer block

A rubber composition and micro-car technology, applied in the field of rubber products and chemical industry, can solve the problems of rubber buffer block failure, low compression permanent deformation, rubber loss of high elasticity, etc., to improve rubber hardness, excellent elasticity, and increase rubber content Effect

Inactive Publication Date: 2010-10-27
SHANGHAI ZHONGLI AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, if you want to greatly increase the stiffness, you must increase the hardness of the rubber to meet the stiffness requirements. Generally, the hardness of the rubber should be increased to above 80HA, but the hardness of the rubber is increased, the filling amount is increased, and the rubber content naturally decreases, resulting in rubber loss. The original advantages of high elasticity and low compression set
This has also led to the main reason for the failure of the rubber buffer block

Method used

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  • High-hardness rubber composite for minitype automobile chassis buffer block
  • High-hardness rubber composite for minitype automobile chassis buffer block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-hardness rubber composition for the chassis buffer block of a miniature car, which contains the following components in parts by weight: 70 parts of SVR-3L; butadiene rubber BR 9000# 30 parts; 2.5 parts of N-isopropyl-N'-phenyl-p-phenylenediamine (antiaging agent 4010NA); 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD) 1.5 parts; microcrystalline paraffin wax 1900 3 parts; naphthenic oil 5 parts; N-234 45 parts; WB212 3 parts; PLIOLITE S6H 15 parts; sulfur 2 parts; zinc oxide 5 parts; stearic acid 1 part; Butyl-2-benzothiazole sulfenamide (accelerator NS) 1.6 parts; dibutyl zinc dithiocarbamate (accelerator BZ) 0.4 parts.

[0025] Its preparation method is as follows:

[0026] (1) Rubber mixing:

[0027] In the first step, mix 70 parts of SVR-3L raw rubber, BR 9000# 30 parts and 15 parts of PLIOLITE S6H are banburyed in the internal mixer, the banburying temperature is 100-120°C, and the banburying time is 3-5min;

[0028] In the second st...

Embodiment 2

[0035] A high-hardness rubber composition for the buffer block of a miniature automobile chassis, containing the following components in parts by weight: 70 parts of SVR-3L; BR 9000# 30 parts; 8 parts of zinc oxide; 2 parts of stearic acid; 2.5 parts of 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD); N-isopropyl-N 1.5 parts of '-phenyl-p-phenylenediamine (antiaging agent 4010NA); 3 parts of microcrystalline paraffin wax 1900; 10 parts of PLIOLITE S6H; 5 parts of WB212; 10 parts of naphthenic oil; 60 parts of N-234; 1.5 parts of 2-benzothiazole sulfenamide (accelerator NS); 0.5 parts of zinc dibutyldithiocarbamate (accelerator BZ); 1.5 parts of sulfur.

[0036] Preparation process step is identical with embodiment 1

Embodiment 3

[0038] A high-hardness rubber composition for the buffer block of a miniature automobile chassis, containing the following components in parts by weight: 70 parts of SVR-3L; BR 9000# 30 parts; 6 parts of zinc oxide; 1.5 parts of stearic acid; 2 parts of 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD); N-isopropyl-N 2 parts of '-phenyl-p-phenylenediamine (antiaging agent 4010NA); 2 parts of microcrystalline paraffin wax 1900; 12 parts of PLIOLITE S6H; 4 parts of WB212; 8 parts of naphthenic oil; 50 parts of N-234; -1.6 parts of 2-benzothiazole sulfenamide (accelerator NS); 0.4 parts of zinc dibutyldithiocarbamate (accelerator BZ); 1.8 parts of sulfur.

[0039] The preparation process steps are the same as in Example 1.

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Abstract

The invention relates to a high-hardness rubber composite for a minitype automobile chassis buffer block. The composite is characterized in that: the composite is prepared from the following raw materials in part by weight: 70 parts of natural rubber, 30 parts of synthetic rubber, 1.5 to 2.5 parts of p-phenylenediamine-kind age resister, 1.5 to 2.5 parts of dihyaroquinoline-kind age resister, 1 to 3 parts of physical age resister, 5 to 10 parts of plasticizer, 45 to 60 parts of reinforcing agent, 3 to 5 parts of dispersant, 10 to 15 parts of high styrene reinforced resin, 1.5 to 2.0 parts of vulcanizing agent, 5 to 8 parts of active agent, 1 to 2 parts of stearic acid, and 1.6 to 2.0 parts of accelerating agent. The high-hardness rubber composite for the minitype automobile chassis buffer block has the advantage of difficult deformation.

Description

technical field [0001] The invention relates to a high-hardness rubber composition used for the buffer block of a microcar chassis, which belongs to the technical field of rubber products and chemicals. Background technique [0002] The main component of the buffer block of the miniature car chassis is natural rubber or its combined rubber. Natural rubber has good elasticity and high mechanical strength, excellent self-replenishing strength, cold resistance, bending resistance, and less heat generation due to multiple deformations. , Tensile and wear-resistant characteristics, are widely used. But because the effect of the chassis buffer block is to limit the jump of the axle (axle), the improvement of the overall shock absorption effect of the vehicle body is obviously improved. Because the buffer block is under a greater force, the buffer is frequently squeezed. like figure 1 Shown is a schematic diagram of the structure of the buffer block, and the buffer block is comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L25/04C08K13/02C08K5/18C08K3/04C08K3/22C08K5/098C08K5/47
Inventor 李庆团
Owner SHANGHAI ZHONGLI AUTO PARTS
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