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High-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material, and preparation method and applications thereof

A rubber material, electrical and thermal conductivity technology, applied in the field of modified rubber, can solve the problems of poor weather resistance, poor oil resistance, decreased mechanical properties, etc., and achieve air aging resistance, excellent mechanical properties, oil resistance, and good heat dissipation.

Active Publication Date: 2015-10-07
青岛科凯达橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials can only have one characteristic, and due to the characteristics of the silica gel itself, the mechanical properties will drop significantly after adding conductive and thermally conductive fillers (the tensile strength is about 1-4MPa, and the elongation at break is about 100-300%), and Its oil resistance is poor
However, some conductive and heat-conducting materials based on nitrile rubber or butadiene rubber have far less electrical and thermal conductivity than silicone-based conductive and heat-conducting materials, and their weather resistance is poor, and they cannot meet the special requirements of some special environments.

Method used

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  • High-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material, and preparation method and applications thereof
  • High-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material, and preparation method and applications thereof
  • High-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053]1. Dissolve 20.3g of nickel nitrate and 17.9g of magnesium nitrate in 100ml of absolute ethanol to prepare a mixed catalyst precursor solution, and prepare a 1:1 mixed solution of 0.7mol / L of nickel nitrate and magnesium nitrate. Apply the prepared precursor solution evenly on the copper sheet substrate, and let it dry naturally;

[0054] 2. After winding the tin wire, place it under the substrate and put it on the deposition table in the chamber of the DC plasma chemical vapor deposition equipment. Close the vacuum chamber and turn on the vacuum pump to evacuate. When the pump pressure is less than 0.1pa, pass argon and hydrogen into the vacuum chamber. The flow rates of argon and hydrogen are 4L / min and 10L / min respectively, start the DC arc, adjust the arc current to 120A, adjust the exhaust valve and the vacuum chamber control valve, so that the pressure in the vacuum chamber is stabilized at 3000Pa, react for 8min, and obtain Ni / MgO catalyst;

[0055] 3. Under th...

Embodiment 2

[0068] 1. The preparation and surface treatment of modified carbon nanotubes, graphene and aluminum nitride are the same as steps 1 to 6 in Example 1.

[0069] 2. Add 100g of chlorosulfonated polyethylene pellets to 600ml of water, add 2g of sodium polymethacrylate and 0.5g of NP-9 and stir to form a suspension, add 30g of the prepared surface-modified graphene powder, and 0.2% initiator BPO, the closed vessel was heated to 120°C, the pressure was raised to 0.3MPa, and the reaction was performed for 2 hours. The temperature was lowered to 70°C, washed with water, and then centrifuged and dried to obtain a graphene-modified basic rubber material, which was used for later use;

[0070] 3. Put 500g of graphene-modified chlorosulfonated polyethylene powder into a 90°C high-speed mixer, and then add 80g of modified carbon nanotubes prepared before, 80g of surface-treated aluminum nitride powder, 20g of oxidized Magnesium and 120g DOA are subjected to high mixing modification. Afte...

Embodiment 3

[0078] 1. The preparation and surface treatment of modified carbon nanotubes, graphene and aluminum nitride are the same as steps 1 to 6 in Example 1.

[0079] 2. Add 70g of chlorinated polyethylene powder to 600ml of water, add 2g of sodium polymethacrylate and 0.5g of NP-9 and stir to form a suspension, add 30g of liquid neoprene and 30g of the prepared surface-modified graphene powder, and 0.2% initiator BPO, the closed vessel was heated to 125°C, the pressure was raised to 0.3MPa, and the reaction was carried out for 2 hours. The temperature was lowered to 70°C, washed with water, and then centrifuged and dried to obtain a graphene-modified basic rubber material, which was used for later use;

[0080] 3. Put 500g of graphene-modified chlorinated polyethylene and chloroprene rubber mixed powder into a high-speed mixer at 80°C, and then add 100g of modified carbon nanotubes prepared before, 100g of surface-treated nitriding Aluminum powder, 20g magnesium oxide and 160g DOA ...

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Abstract

The invention relates to a high-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material. The high-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material is prepared from following ingredients, by weight, 50 to 100 parts of an electroconductive thermal conductive rubber master batch, 40 to 60 parts of an auxiliary rubber material, 30 to 50 parts of a reinforced material, 30 to 50 parts of a flexibilizer, 30 to 50 parts of a filling material, 8 to 10 parts of a stabilizing agent, 10 to 15 parts of a tackifier, 3 to 5 parts of a vulcanizing agent, and 2 to 3 parts of a vulcanizing assistant agent. The high-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material possesses excellent electrical conductivity and thermal conductivity; volume resistivity is as high as 102 omega.cm; heat conductivity coefficient is higher than 4W / (m.K); the high-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material can be applied to special fields such as petroleum, coal mine, and spaceflight; the high-electrical conductivity high-thermal conductivity oil-resistant aging-resistant rubber material possesses excellent mechanical properties, oil resistance, and air aging resistance, and can be used in oil medium or in outdoor environment.

Description

technical field [0001] The invention relates to the field of modified rubber, in particular to a rubber material with high electrical conductivity, thermal conductivity, oil resistance and aging resistance, and a preparation method and application thereof. Background technique [0002] At present, the conductive and thermally conductive rubber materials on the market are mainly conductive and thermally conductive rubber based on silicone rubber, and the volume resistivity is generally 10 5 ~10 9 About Ω·cm, after adding some metal conductive powder fillers, it can reach thousands or hundreds of ohm cm, and the thermal conductivity is usually 1.2 ~ 3W / (m.K). However, these materials can only have one characteristic, and due to the characteristics of the silica gel itself, the mechanical properties are greatly reduced after the addition of conductive and thermally conductive fillers (tensile strength is about 1 to 4 MPa, and elongation at break is about 100 to 300%), and Its...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L23/34C08L11/00C08L9/02C08L9/06C08L9/00C08L7/00C08K13/06C08K9/04C08K9/02C08K9/06C08K7/24C08K3/04C08K3/28C08K3/26C08K3/34B29C35/02
CPCB29C35/02C08K2201/011C08L23/286C08L23/34C08L2203/18C08L2203/20C08L2203/202C08L2205/02C08L2205/035C08L9/02C08L33/02C08L47/00C08L91/06C08K13/06C08K9/04C08K9/02C08K9/06C08K7/24C08K3/04C08K2003/282C08L9/00C08L11/00C08L9/06C08L45/02
Inventor 张哲
Owner 青岛科凯达橡塑有限公司
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