Damping rubber composite material with excellent conductive performance and preparation thereof

A composite material and damping rubber technology, which is applied to conductive materials and coatings dispersed in non-conductive inorganic materials, can solve problems such as failure to improve rubber damping, and achieve light weight, reduced weight, and low production costs. Effect

Inactive Publication Date: 2009-08-12
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The feature of this invention is that organic polyaniline is used to impart electrical conductivity to rubber, but the main conductive raw material in the material is polyaniline. To impart electrical conductivity to rubber, a considerable amount of polyaniline raw material must be used, and the damping property of rubber has not been improved.

Method used

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  • Damping rubber composite material with excellent conductive performance and preparation thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of the damping rubber composite material of the present invention includes the following preparation steps:

[0023] 1. According to the mass percentage content of 10% Al, 3% Zn, 0.05% Fe, and the rest is Mg alloy composition ratio, mix the above-mentioned prepared pure Al ingot, pure Mg ingot, pure Fe flake, and pure Zn Ingot in SF 6 Heat and melt together in a protective atmosphere; when the temperature rises to 710~725℃, keep for 10~15 minutes and then cool to obtain magnesium alloy; process the magnesium alloy into magnesium alloy particles with a size of 2~5mm by cutting processing method;

[0024] 2. Then mix the polyaniline powder into the hydroxy acrylic resin, the polyaniline powder accounts for 60% of the hydroxy acrylic resin by mass, and add a mixed diluent accounting for 2% of the mass of the hydroxy acrylic resin. The volume of butyl acetate and xylene in the diluent The ratio is 2.5:7.5, and it is stirred rapidly for 15 minutes at a spe...

Embodiment 2

[0028] The preparation method of the damping rubber composite material of the present invention includes the following preparation steps:

[0029] 1. According to the mass percentage content of 5% Al, 0.5% Zn, 0.25% Fe, and the rest is Mg alloy composition ratio, mix the above-mentioned prepared pure Al ingots, pure Mg ingots, pure Fe flakes, and pure Zn Ingot in SF 6 Heat and melt together in a protective atmosphere; when the temperature rises to 710~725℃, keep for 10~15 minutes and then cool to obtain magnesium alloy; process the magnesium alloy into magnesium alloy particles with a size of 2~5mm by cutting processing method;

[0030] 2. Then mix the polyaniline powder into the hydroxy acrylic resin, the polyaniline powder accounts for 30% of the hydroxy hydroxy acrylic resin by mass, and add a mixed diluent accounting for 2% of the hydroxy acrylic resin by mass. The diluent contains butyl acetate and xylene. The volume ratio is 2.5:7.5, and the homogeneously dispersed polyanili...

Embodiment 3

[0034] 1. According to the mass percentage content of 7% Al, 2.5% Zn, 0.15% Fe, and the rest is Mg alloy composition ratio, mix the above-mentioned prepared pure Al ingots, pure Mg ingots, pure Fe flakes, and pure Zn Ingot in SF 6 Heat and melt together in a protective atmosphere; when the temperature rises to 710~725℃, keep for 10~15 minutes and then cool to obtain magnesium alloy; process the magnesium alloy into magnesium alloy particles with a size of 2~5mm by cutting processing method;

[0035]2. Then mix the polyaniline powder into the hydroxy acrylic resin, the polyaniline powder accounts for 55% to 66% of the weight of the hydroxy acrylic resin, and add 1.5% to 2.5% of the mixed diluent that accounts for the weight of the hydroxy acrylic resin. The volume ratio of butyl acetate to xylene is 2.5:7.5, and the uniformly dispersed polyaniline-acrylic paint is obtained after rapid stirring at a speed of 800-1200r / min for 12 minutes;

[0036] 3. Then the magnesium alloy particle...

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Abstract

The invention provides a damping rubber composite material with good conductivity and a preparation method thereof. The rubber composite material has good damping property and reduces weight of rubber products. The damping rubber composite material has composite magnesium alloy particles which are evenly distributed in a rubber matrix and coated with a polyaniline layer, and the composite magnesium alloy particles is 30-60% of the composite material by volume; the composite magnesium alloy particles are 2-5mm and consist of an organic outer layer and a metal inner core, the organic outer layer is polyaniline and is 2-10mum thick, and the inner core of the composite magnesium alloy particle is magnesium alloy including the following magnesium alloy compositions in weight percentage: 5-10% of Al, 0.5-3% of Zn, 0.05-0.25% of Fe, and Mg. The rubber matrix can be styrene butadiene rubber matrix or butyl rubber matrix.

Description

1. Technical Field [0001] The invention relates to a rubber-based composite material containing organic / magnesium particles and a preparation method thereof, in particular to a light-weight damping rubber composite material with high conductivity, belonging to the technical field of composite materials. 2. Background technology [0002] In order to effectively improve the rubber material's shielding of interference from external magnetic fields and make the rubber material have certain functions, such as damping, some conductive rubber and damping rubber have been proposed. [0003] Patent application No. 200410074318.0 proposes a highly conductive rubber. The components and weight ratios of the highly conductive rubber are: 100 parts by weight of two-component silica gel and 200-600 parts by weight of conductive materials; two-component silica gel contains platinum catalyst and Silane compound crosslinking agent silica gel, the conductive material is 200-350 parts by weight of s...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L23/22C08K9/04C08K3/08C08K3/10C09D133/02C09D179/02H01B1/22C22C1/02C22C23/02
Inventor 赵浩峰王玲
Owner NANJING UNIV OF INFORMATION SCI & TECH
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