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Combined coupling agent, modified carbonaceous aggregate and its preparation method and electrical contact material

A carbonaceous aggregate, combined technology, applied in the direction of contacts, circuits, electric switches, etc., can solve the problems of poor interface bonding of binder resin, unstable current-carrying friction and wear performance, poor flexural strength of carbon brushes, etc. , to achieve the effect of good interface binding, simple and easy preparation method, and improved mechanical strength

Active Publication Date: 2022-04-15
安康市顺祥炭素有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of material has the following disadvantages: ①Since the surface of carbonaceous aggregate graphite powder contains only a small amount of free hydroxyl groups, resulting in poor interfacial bonding with the binder resin; ②Due to the poor fluidity of the binder during the kneading process, its Inhomogeneous dispersion between materials, it is very easy to generate inevitable random microcracks at the interface of aggregate phase / binder phase
The above problems will lead to poor flexural strength of the carbon brush, unstable current-carrying friction and wear performance, poor wear resistance, etc., and even cause the motor to be burned

Method used

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  • Combined coupling agent, modified carbonaceous aggregate and its preparation method and electrical contact material
  • Combined coupling agent, modified carbonaceous aggregate and its preparation method and electrical contact material
  • Combined coupling agent, modified carbonaceous aggregate and its preparation method and electrical contact material

Examples

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Effect test

Embodiment 1

[0032] A combined coupling agent for carbonaceous aggregate modification, the proportion is titanate coupling agent: borate coupling agent: aluminate coupling agent is 3:1:1, the above titanic acid The ester coupling agent is titanate TTS, the borate coupling agent is borate LD-100P, and the aluminate coupling agent is aluminate DL-411.

[0033] A modified carbonaceous aggregate obtained by modifying the above combined coupling agent, the specific process is as follows:

[0034] (1) prepare carbonaceous aggregate powder by airflow mixing method;

[0035] (2) The configuration quality is a combined coupling agent solution with a carbonaceous aggregate powder mass fraction of 3%;

[0036] (3) Disperse the combined coupling agent solution in step (2) evenly on the surface of the carbonaceous aggregate powder by atomization, and mix uniformly to obtain the treated modified carbonaceous aggregate powder.

[0037] A resin-type sliding electrical contact material, including the fol...

Embodiment 2

[0043] A combined coupling agent for carbonaceous aggregate modification, the proportion is titanate coupling agent: borate coupling agent: aluminate coupling agent is 2:1:2, the above titanic acid The ester coupling agent is titanate TTS, the borate coupling agent is borate LD-100P, and the aluminate coupling agent is aluminate DL-411.

[0044] A modified carbonaceous aggregate obtained by modifying the above combined coupling agent, the specific process is as follows:

[0045] (1) prepare carbonaceous aggregate powder by airflow mixing method;

[0046] (2) The configuration quality is a combined coupling agent solution with a carbonaceous aggregate powder mass fraction of 3%;

[0047] (3) Disperse the combined coupling agent solution in step (2) evenly on the surface of the carbonaceous aggregate powder by atomization, and mix uniformly to obtain the treated modified carbonaceous aggregate powder.

[0048] A resin-type sliding electrical contact material, including the fol...

Embodiment 3

[0053] A combined coupling agent for carbonaceous aggregate modification, the proportion is titanate coupling agent: borate coupling agent: aluminate coupling agent is 1:1:1, the above titanic acid The ester coupling agent is titanate TTS, the borate coupling agent is borate LD-100P, and the aluminate coupling agent is aluminate DL-411.

[0054] A modified carbonaceous aggregate obtained by modifying the above combined coupling agent, the specific process is as follows:

[0055] (1) prepare carbonaceous aggregate powder by airflow mixing method;

[0056] (2) The configuration quality is a combined coupling agent solution with a carbonaceous aggregate powder mass fraction of 3%;

[0057] (3) Disperse the combined coupling agent solution in step (2) evenly on the surface of the carbonaceous aggregate powder by atomization, and mix uniformly to obtain the treated modified carbonaceous aggregate powder.

[0058] A resin-type sliding electrical contact material, including the fol...

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Abstract

The invention discloses a combined coupling agent for carbonaceous aggregate modification, including borate coupling agent and titanate coupling agent, the borate coupling agent and titanate coupling The ratio of the agent is 1: (1-3). The present invention also provides a modified carbonaceous aggregate modified by the above-mentioned combined coupling agent and a preparation method of the above-mentioned modified carbonaceous aggregate. The present invention also provides an electrical contact material comprising the above-mentioned modified carbonaceous aggregate. The present invention proposes a new combined coupling agent, designs and prepares a modified carbonaceous aggregate and resin-type sliding electrical contact material, expands the application range of the coupling agent, and is also a resin-type sliding electrical contact material The upgrading and updating provide the theoretical basis and the basis of applied research.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a coupling agent, a modified carbonaceous aggregate, a preparation method thereof, and an electrical contact material. Background technique [0002] Materials that make components that conduct current (electrical signals, electrical energy) in contact with each other are called electrical contact materials. Electrical contact material is the functional carrier for electrical appliances to complete the "connection-conduction-cutoff" current and signal generation and transmission. Its electrical contact performance is the key to the reliability of electrical and electronic engineering. It has "the heart of low-voltage electrical appliances" in the field of low-voltage electrical appliances. It is widely used in relays, circuit breakers, contactors, sensors, industrial control and other products. Electrical contact materials include fixed, sliding and separable contac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K3/04C08K3/30C08L63/00H01H1/029H01H11/04
CPCC08K9/04C08K3/04C08K3/30H01H1/029H01H11/04C08K2003/3009C08L63/00
Inventor 涂川俊谭姣刘平巩佩徐宇轩
Owner 安康市顺祥炭素有限公司