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A kind of high-performance conductive silicone rubber and preparation method thereof

A conductive silicon, high-performance technology, applied in the field of high-performance conductive silicone rubber and its preparation, can solve the problems of slow vulcanization speed, falling carbon powder, high resistance of conductive silicone rubber, etc.

Active Publication Date: 2018-08-07
东莞市雄驰电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing conductive silicone rubber has a large resistance and a slow vulcanization speed, and it is easy to drop carbon powder after vulcanization. When using this conductive silicone rubber to form a product, it is easy to stick to the mold, which increases the defective rate of the product. Increased production costs and reduced economic benefits

Method used

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  • A kind of high-performance conductive silicone rubber and preparation method thereof
  • A kind of high-performance conductive silicone rubber and preparation method thereof
  • A kind of high-performance conductive silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of high-performance conductive silicone rubber of the present invention comprises the raw material of following mass percent:

[0060]

[0061] The conductive filler powder of the present embodiment comprises the raw material of following mass percent:

[0062] Acetylene Black 35%

[0063] Graphite 65%.

[0064] The particle diameter of the acetylene carbon black in this embodiment is 1 nanometer, and the particle diameter of the graphite is 10 nanometers.

[0065] The silica gel in this embodiment is methyl vinyl silica gel.

[0066] The vulcanization accelerator in this embodiment is zinc oxide.

[0067] The coupling agent in this embodiment is a silane coupling agent.

[0068] The release agent in this embodiment is a fluorine internal release agent.

[0069] A preparation method of high-performance conductive silicone rubber, comprising the following processing steps:

[0070] Step A, weighing various materials according to the formula, and placing t...

Embodiment 2

[0076] A kind of high-performance conductive silicone rubber of the present invention comprises the raw material of following mass percent:

[0077]

[0078] The conductive filler powder of the present embodiment comprises the raw material of following mass percent:

[0079] Acetylene Black 40%

[0080] Graphite 60%.

[0081] The particle diameter of the acetylene carbon black in this embodiment is 10 nanometers, and the particle diameter of the graphite is 50 nanometers.

[0082] The silica gel in this embodiment is methyl vinyl silica gel.

[0083] The vulcanization accelerator in this embodiment is vulcanization accelerator M.

[0084] The coupling agent in this embodiment is a chromium complex coupling agent.

[0085] The release agent in this embodiment is a silicon-based internal release agent.

[0086] A preparation method of high-performance conductive silicone rubber, comprising the following processing steps:

[0087] Step A, weighing various materials accor...

Embodiment 3

[0093] A kind of high-performance conductive silicone rubber of the present invention comprises the raw material of following mass percent:

[0094]

[0095] The conductive filler powder of the present embodiment comprises the raw material of following mass percent:

[0096] Acetylene Black 50%

[0097] Graphite 50%.

[0098] The particle diameter of the acetylene carbon black in this embodiment is 50 nanometers, and the particle diameter of the graphite is 100 nanometers.

[0099]The silica gel in this embodiment is methyl vinyl silica gel.

[0100] The vulcanization accelerator in this embodiment is vulcanization accelerator TT.

[0101] The coupling agent in this embodiment is a titanate coupling agent.

[0102] The release agent in this embodiment is a wax internal release agent.

[0103] A preparation method of high-performance conductive silicone rubber, comprising the following processing steps:

[0104] Step A, weighing various materials according to the formu...

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Abstract

The invention relates to a high-performance conductive silicone rubber, which comprises the following raw materials in mass percentage: 35-80% of raw silicon rubber, 10-60% of conductive filler powder, 0.1-10% of vulcanization accelerator, 0.1-10% of coupling agent, Release agent 0.1-10%; the conductive silicone rubber has low resistance and fast vulcanization speed, and no carbon powder will fall off after vulcanization. When using this conductive silicone rubber to mold products, it will not stick to the mold, which improves the durability of the product. The pass rate reduces the production cost and improves the economic benefits; a preparation method of high-performance conductive silicone rubber, including the following processing steps: weighing various materials according to the formula; putting raw silicon rubber into the internal mixer, and starting the internal mixing Put the conductive filler powder into the internal mixer and mix for 15-30 minutes; put all the vulcanization accelerator, coupling agent and mold release agent into the internal mixer in sequence, and continue mixing after all materials are added. Refining for 30-50 minutes; step E, pouring out the material from the internal mixer to obtain the finished product; the preparation method of the conductive silicone rubber is simple in process and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to a high-performance conductive silicone rubber and a preparation method thereof. Background technique [0002] Conductive silicone rubber is a kind of silicone rubber that can conduct electricity. Because conductive silicone rubber has the advantages of small size, stable and reliable contact, good shock resistance, and convenient replacement, it is mainly used for the connection between printed circuits, radio integrated circuits, and displays. A lot of welding labor can be saved, assembly is simplified, volume is reduced, cost is reduced, and reliability is improved. For example, it can be used for connection between conductive key buttons, conductive silicone rubber rollers, printed circuits and integrated circuits, and displays. [0003] However, the existing conductive silicone rubber has a large resistance and a slow vulcanization speed, and it is easy to drop ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L27/18C08K13/02C08K3/04C08K3/22C08K5/54
Inventor 黄灵智
Owner 东莞市雄驰电子有限公司
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