Heat-conducting composite material, rubber composition, pipe material for cooling media and preparation method for pipe material

A technology of heat-conducting composite materials and rubber compositions, which is applied in the fields of pipes for cooling media and their preparation, rubber compositions, and heat-conducting composite materials. Sticking or foaming, improving construction performance, and reducing the effect of vulcanization temperature

Active Publication Date: 2016-07-27
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods either use too much high-pressure steam, causing serious economic waste, and also have potential safety problems, or cannot achieve mass production due to the national mandatory safety certification for pressure vessels.
[0009] 2. The one-step vulcanization method of immersing rubber products in liquid to realize oxygen barrier vulcanization. The rubber products of peroxide vulcanization system have higher requirements for vulcanization temperature and vulcanization pressure. This method cannot realize the complete vulcanization of rubber products and make the performance of rubber products great. discount
However, a specially designed nitrogen filling device is required, which is limited by cost, safety and domestic pressure vessel design level, welding technology and use technology level. There is no precedent for introduction and use at present.

Method used

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  • Heat-conducting composite material, rubber composition, pipe material for cooling media and preparation method for pipe material
  • Heat-conducting composite material, rubber composition, pipe material for cooling media and preparation method for pipe material
  • Heat-conducting composite material, rubber composition, pipe material for cooling media and preparation method for pipe material

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preparation example Construction

[0038] In the above method provided by the present invention, the thermally conductive particles surface-treated with the first coupling agent can be prepared by referring to conventional methods in the prior art, as long as the first coupling agent is made to sufficiently treat the surface of the thermally conductive particles, so that the first coupling agent It only needs to have good compatibility between the thermally conductive particles surface-treated with the coupling agent, the carrier surface-treated with the second coupling agent, and the rubber material. The preparation method of the thermally conductive particles surface-treated by the coupling agent comprises: stirring and mixing the conductive particles and the first coupling agent in proportion (preferably, the stirring speed in the stirring and mixing step is 3000-5000r / min, and the stirring time is 20min-30min), After standing (preferably the standing time in the standing step is 45-90min), the conductive par...

Embodiment 1 to 5

[0082] (1) Raw materials and ratio:

[0083] The raw materials and proportions of thermally conductive composite materials are shown in Table 3. Among them, the thermally conductive particles surface-treated with the first coupling agent are the corresponding particles in Table 1, the carriers surface-treated with the second coupling agent are the corresponding carriers in Table 2, and the third coupling agent is commercially available from Jianghan Fine Chemicals Co., Ltd. The company's JH-V173 model vinyl silane coupling agent.

[0084] table 3.

[0085]

[0086] (2) the preparation method of embodiment 1 to 5 is as follows:

[0087] The thermally conductive particles surface-treated with the first coupling agent, the carrier surface-treated with the second coupling agent, and the optional third coupling agent are ball-milled, the ball-milling speed is 4000r / min, and the ball-milling time is 25min, to obtain the Thermally conductive composites.

Embodiment 6

[0090] The raw materials and proportions of the thermally conductive composite material refer to Example 1, wherein the first coupling agent, the second coupling agent and the third coupling agent are commercially available A-151 vinyl silane coupling agents from United Carbon Corporation. joint agent;

[0091] Preparation method of thermally conductive composite material:

[0092] The conductive particles and the first coupling agent are stirred and mixed in proportion, the stirring speed is 3000r / min, and the stirring time is 30min. After standing for 90min, the conductive particle mixture is obtained, and the conductive particle mixture is ball-milled, and the ball-milling speed is 3000r / min. The time is 30 min, and the conductive particles surface-treated by the coupling agent are obtained.

[0093] The carrier and the second coupling agent are stirred and mixed in proportion, the stirring speed is 3000r / min, the stirring time is 30min, the carrier mixture is obtained aft...

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Abstract

The invention discloses a heat-conducting composite material, a rubber composition, a pipe material for cooling media and a preparation method for the pipe material. The heat-conducting composite material contains heat-conducting particles and a carrier, wherein the heat-conducting particles are subjected to surface treatment by a first coupling agent, and the carrier is subjected to surface treatment by a second coupling agent; and the heat-conducting particles which are subjected to surface treatment by the first coupling agent are at least partially filled in the carrier which is subjected to surface treatment by the second coupling agent, and the carrier is a porous, void or hollow granular matter. According to the heat-conducting composite material, the heat-conducting particles which are subjected to surface treatment by the first coupling agent and the carrier which is subjected to surface treatment by the second coupling agent are adopted, and the heat-conducting particles which are subjected to surface treatment by the first coupling agent are at least partially filled in pores of the carrier which is subjected to surface treatment by the second coupling agent, so that the compatibility of the heat-conducting composite material, containing the heat-conducting particles and the carrier, with base rubber is improved; and the heat-conducting composite material is added in the rubber composition, heat conducting channels are formed in milled rubber which is prepared through mixing the rubber composition containing the heat-conducting composite material, and then, the thermal sensitivity of the milled rubber is improved.

Description

technical field [0001] The invention relates to the field of automobile rubber hoses, in particular, to a thermally conductive composite material, a rubber composition, a pipe for a cooling medium and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, customers have higher and higher requirements for automobiles, which are not only reflected in the aesthetic personality of the vehicle's shape design, the inherent comfort and intelligence of the vehicle, and the strength of the vehicle's power, but also in terms of environmental protection and energy saving. Also put forward higher requirements. [0003] In the process of choosing and balancing energy saving, economy, environmental protection and power displacement of automobile engine, TI turbocharged engine was born. The beautiful and individual design of the vehicle shape and the requirements for the comfort of the car space force the design of the car engine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/06C08K3/38C08K3/36C08K3/22C08K7/20C08K3/34C08K7/24C08K3/04C08K3/30C08K3/26C08L23/16C08L7/00C08L9/02C08L9/06C08K13/06C08K5/01C08K5/14B29C35/02
Inventor 宫建坤林志文侯振宇
Owner BYD CO LTD
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