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Conductive rubber and its application and surface selective metallized rubber product and its preparation method

A technology of conductive rubber and rubber products, which is applied in applications, cable/conductor manufacturing, and conductive layers on insulating carriers. It can solve problems such as the inability to meet the requirements for the use of shielding shells, and the difficulty in forming fine conductive patterns. Low cost, reduced production cost, wide range of raw material sources

Active Publication Date: 2016-04-27
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite conductive rubber strip disclosed by CN2834900Y is actually formed by compounding silicone rubber or fluorosilicone rubber containing conductive fillers with an elastic rubber layer. Requirements for use in shielded enclosures

Method used

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  • Conductive rubber and its application and surface selective metallized rubber product and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] (1) 80 grams of CuO and 80 grams of Fe 2 o 3 Mix well, and carry out ball milling in a ball mill with ethanol as a medium for 12 hours. After the ball mill product is dried, in a mixed atmosphere of hydrogen and nitrogen (wherein, the volume ratio of hydrogen and nitrogen is 2:1) , roasted for 5 hours, and ball-milled the roasted product to an average particle size of 80nm. The prepared product is CuFeO 3.98 .

[0137] (2) 100 g of the compound prepared in step (1), 15 g of polyvinyl butyral (commercially purchased from Kuraray Co., Japan, trade name Mowital) and 20 g of toluene were uniformly mixed to obtain an ink composition.

[0138] (3) The ink composition prepared in step (2) is printed on the surface of the rubber substrate (formed by vulcanized styrene-butadiene rubber) with an inkjet printing method, and dried at a temperature of 120° C. for 3 hours, thereby An ink layer (thickness: 15 μm) was formed on the surface of the rubber substrate.

[0139] (4) ele...

Embodiment 2

[0141] (1) 80 grams of CuO and 80 grams of Fe 2 o 3 Mix evenly, carry out ball milling in a ball mill with ethanol as a medium for 12 hours, after the ball milling product is dried, at a temperature of 800°C, in a mixed atmosphere of hydrogen and nitrogen (wherein the volume ratio of hydrogen to nitrogen is 1:1) , roasted for 6 hours, and the roasted product was ball-milled to an average particle size of 100 nm. The prepared product is CuFeO 3.9 .

[0142] (2) 100 grams of the compound prepared in step (1), 20 grams of binder (commercially purchased from Eastman Company of the United States, trade name CAB381-0.5), 100 grams of n-heptanol, 2 grams of dispersant (commercially purchased from Germany BYK company, trade mark is DISPERBYK-165), 0.2 gram defoamer (commercially purchased from German BYK company, trade mark is BYK-051), 0.4 gram leveling agent (commercially purchased from German BYK company, trade mark is BYK-333) and 0.5 g of hydrogenated castor oil (commercially...

Embodiment 3

[0146] The same method as in Example 2 was used to prepare the ink composition and selectively metallize the surface of the rubber substrate, except that no epoxy resin binder was used in step (3).

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Abstract

The invention provides conductive rubber and an application thereof. The conductive rubber comprises a rubber substrate and an ink layer that is printed on at least partial surface of the rubber substrate, wherein the ink layer contains a metallic compound, and the metallic compound is one or more than two of nanometer copper oxide, nanometer cuprous oxide, titanic oxide as shown in Formula I (TiO2-sigma), and a compound as shown in Formula II (M<1>M<2>pOq). The invention further provides a rubber product with a selectively metallized surface, and a preparation method of the rubber product. The rubber product comprises the conductive rubber and at least one metal layer, wherein the metal layer is positioned on the surface of the conductive rubber with the ink layer. Electroplating or chemical plating can be conducted on the conductive rubber, without any physical or chemical treatment, so that a refined conductive line is formed, and a using requirement in a shielding case with small size and complicated structure can be met.

Description

technical field [0001] The invention relates to a conductive rubber and its application, and also relates to a surface-selective metallized rubber product formed from the conductive rubber and a preparation method thereof. Background technique [0002] Conductive rubber generally achieves good electrical conductivity by uniformly distributing conductive particles in the rubber and contacting the conductive particles through pressure. Due to the wide variety of conductive particles used in conductive rubber, the conductive performance is high or low, so that the shielding effectiveness of conductive rubber is wide, and it can be adjusted in the frequency range from 200MHz to 10GHz, and can provide attenuation of more than 75dB. Therefore, conductive rubber Suitable for electronic equipment with high shielding requirements. Because conductive rubber also has the function of environmental sealing and grounding, it is the most widely used type of conductive elastomer sealing ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B13/00C09D11/02C09D11/52
Inventor 宫清周良苗伟峰
Owner BYD CO LTD
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