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Conductive rubber composite material with excellent damping performance and preparation thereof

A composite material and conductive rubber technology, applied in the field of composite materials, can solve a large number of problems and achieve the effects of high conductivity, good shielding effect and light weight

Active Publication Date: 2009-08-12
常熟紫金知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent application is characterized by good electrical conductivity but requires a large amount of the precious metal silver

Method used

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  • Conductive rubber composite material with excellent damping performance and preparation thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation method of the conductive rubber composite material with good damping property of the present invention, the preparation process is as follows:

[0025] a. Mix the polyaniline powder into the hydroxyacrylic resin, the polyaniline powder accounts for 60% of the mass of the hydroxyacrylic resin, add a mixed diluent accounting for 2% of the mass of the hydroxyacrylic resin, and the volume ratio of butyl acetate to xylene in the diluent is 2.5 : 7.5, promptly obtain the polyaniline-acrylic acid coating that disperses evenly with the speed stirring 25min of 800~1200r / min;

[0026] b. Crush the natural porous perlite into particles with a size of 1-5 mm, wash and dry, then immerse in polyaniline-acrylic paint for 3 minutes, then remove it, and dry at 120°C to obtain perlite composite particles;

[0027] C. Plasticize styrene-butadiene rubber at 125°C for 4-6 minutes, then add perlite composite particles. The volume ratio of perlite composite particles to rubber...

Embodiment 2

[0029] a. Mix the polyaniline powder into the hydroxyacrylic resin, the polyaniline powder accounts for 45% of the mass of the hydroxyacrylic resin, add a mixed diluent accounting for 2.2% of the mass of the hydroxyacrylic resin, and the volume ratio of butyl acetate to xylene in the diluent is 2.5 : 7.5, with the speed of 800~1200r / min fast stirring 20min promptly obtains the evenly dispersed polyaniline-acrylic paint;

[0030] b. Crush the natural porous perlite into particles with a size of 1-5 mm, wash and dry, then immerse in polyaniline-acrylic paint for 3 minutes, then remove it, and dry at 120°C to obtain perlite composite particles;

[0031] C. Plasticize butyl rubber for 4-6 minutes at 127°C, and then add perlite composite particles. The volume ratio of perlite composite particles to rubber is 3.5:6.5. After mixing for 8-12 minutes, compound in perlite Sulfur accounting for 2% of the mass of butyl rubber was added to the complex formed by the particles and butyl rubb...

Embodiment 3

[0032] Embodiment 3: The value range of the mass percentage content in this embodiment means that the quality of the raw materials can be selected within the content range, and various combination relationships can be formed in this embodiment.

[0033] a. Mix the polyaniline powder into the hydroxyl acrylic resin, the polyaniline powder accounts for 55% to 65% of the mass of the hydroxyl acrylic resin, and adds a mixed diluent accounting for 1.5 to 2.5% of the mass of the hydroxyl acrylic resin. In the diluent, butyl acetate and The volume ratio of toluene is 2:8~3:7, and the uniformly dispersed polyaniline-acrylic coating can be obtained after stirring rapidly at a speed of 800~1200r / min for 20~30min;

[0034] b. Crush the natural porous perlite into particles with a size of 1-5mm, wash and dry it, then immerse it in polyaniline-acrylic paint for 1-3 minutes, then remove it, and dry it at 110-130°C to obtain perlite composite particles;

[0035] C. Plasticize the rubber at 1...

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Abstract

The invention provides a conductive rubber composite material with good damping property and a preparation method thereof. The composite material has good conductivity and can reduce weight of rubber products. The composite material has polyaniline / perlite composite particles which are evenly distributed in a rubber matrix. The composite particles are perlite particles with polyaniline in pores and on surfaces, are 1-5mm and account for 25-50% of the composite material by volume. 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 an organic / inorganic porous medium and a preparation method thereof, in particular to a light-duty conductive rubber composite material with high damping, which belongs to the technical field of composite materials. 2. Background technology [0002] Existing rubbers have good damping properties, but they cannot meet some special requirements, such as good electrical conductivity, so some high-damping rubbers have been proposed. [0003] No. 01128908.2 patent application proposes a preparation method of wide temperature and broadband polyacrylate / polysiloxane composite damping rubber, which uses polysiloxane and polyacrylate blend vulcanization to widen the low temperature damping area of ​​polyacrylate, and then The blended rubber is the matrix interpenetrated with the poly(meth)acrylate sequence, which broadens the high temperature damping area of ​​the composite rubber, and obta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L23/22C08L79/02C08K3/00
Inventor 赵浩峰王玲
Owner 常熟紫金知识产权服务有限公司
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