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Low-consumption temperature-resistant conductive adhesive for sensor and preparation method of adhesive

A sensor and conductive adhesive technology, applied in the field of sensors, can solve problems such as unfavorable device thinning, and achieve the effects of excellent performance optimization, reduced current consumption value, and high bonding strength

Inactive Publication Date: 2021-02-05
句容市双诚电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are few relevant documents about the connection between sensors and printed circuit boards, which generally include printed circuit boards and thin-film capacitive touch sensors, and in addition to thin-film capacitive touch sensors and printed circuit boards, external fixing is also required. The device, that is, an additional rigid mount, is not conducive to the thinning of the device, and it is not suitable for the case where the printed circuit board is a soft board (such as FPC), and it is only suitable for hard boards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A low-consumption and temperature-resistant conductive adhesive for sensors, comprising the following components in mass percentage, 15% of coated graphite powder, 5% of auxiliary additives, and the balance of a rubber matrix, wherein the rubber matrix includes 5wt% of an active diluent, Curing agent 15wt%, thermoplastic resin balance.

[0021] Wherein, the thermoplastic resin is selected from polyimide, phenolic resin and polyurethane with a mass ratio of 0.3:1:3. Auxiliary additives include coupling agents, plasticizers, antioxidants, dispersants, and defoamers, which can be purchased from existing commercially available finished products and are not specifically limited here.

[0022] Further, the coated graphite powder is selected from graphite powder, activator, and coating agent with a mass ratio of 1:0.2:3, and the activator includes inorganic sulfate, nano-zinc oxide, cocamidopropylamine oxide and lauryl Sodium sulfate, the mass percentage of each component acc...

Embodiment 2

[0026] A low-consumption and temperature-resistant conductive adhesive for sensors, comprising the following components in mass percentage, 25% of coated graphite powder, 5% of auxiliary additives, and the remainder of the rubber matrix, wherein the rubber matrix includes 6wt% of active diluent, Curing agent 20wt%, thermoplastic resin balance.

[0027] Wherein, the thermoplastic resin is selected from polyimide, phenolic resin and polyurethane with a mass ratio of 0.3:1.5:3. Auxiliary additives include coupling agents, plasticizers, antioxidants, dispersants, and defoamers.

[0028] Further, the coated graphite powder is selected from graphite powder, activator, and coating agent with a mass ratio of 1:0.3:3, and the activator includes inorganic sulfate, nano-zinc oxide, cocamidopropyl amine oxide and lauryl Sodium sulfate, the mass percentage of each component accounts for 10% of inorganic sulfate, 15% of nano-zinc oxide, 45% of cocamidopropyl amine oxide and the balance of ...

Embodiment 3

[0032] A low-consumption and temperature-resistant conductive adhesive for sensors, comprising the following components in mass percentage, 15% of coated graphite powder, 3% of auxiliary additives, and the remainder of the rubber matrix, wherein the rubber matrix includes 6wt% of active diluent, Curing agent 15wt%, thermoplastic resin balance.

[0033] Wherein, the thermoplastic resin is selected from: polyimide, phenolic resin, aliphatic epoxy resin with a mass ratio of 0.2:1.5:3. Auxiliary additives include coupling agents, plasticizers, antioxidants, dispersants, and defoamers.

[0034] Further, the coated graphite powder is selected from graphite powder, activator, and coating agent with a mass ratio of 1:0.3:3, and the activator includes inorganic sulfate, nano-zinc oxide, cocamidopropyl amine oxide and lauryl Sodium sulfate, the mass percentage of each component accounts for 10% of inorganic sulfate, 5% of nano-zinc oxide, 30% of cocamidopropyl amine oxide and the balan...

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PUM

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Abstract

The invention provides a low-consumption temperature-resistant conductive adhesive for a sensor and a preparation method of the low-consumption temperature-resistant conductive adhesive, the conductive adhesive comprises the following components in percentage by mass: 5-25% of coated graphite powder, 3-7% of an auxiliary additive and the balance of a rubber matrix, and the rubber matrix comprisesthe following components in percentage by mass: 1-6wt% of an active diluent, 8-20wt% of a curing agent and the balance of thermoplastic resin. The raw material components are reasonably configured, and the raw materials are effectively cooperated and matched, so that the prepared conductive adhesive has excellent high temperature resistance, good conductive effect, low loss and stable adhesion structure, the comprehensive benefit is remarkably improved, and the conductive adhesive is worthy of application and popularization.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a low-consumption and temperature-resistant conductive adhesive for sensors and a preparation method thereof. Background technique [0002] Conductive adhesive is an adhesive with both conductive and bonding properties. It can connect a variety of conductive materials together to form a conductive path between the connected materials. It is filled with conductive fillers in the organic polymer matrix, so that it has similar conductive properties to metals. Different from ordinary conductive polymers, conductive adhesives require the system to be fluid under storage conditions, and can be cured by heating or other methods to form a connection with a certain strength. [0003] With the development and changes of the times, the market demand for flexible electronic devices is becoming more and more obvious, such as the consumer electronics industry, the rapid development of mobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J161/06C09J179/08C09J9/02C09J11/04
CPCC09J175/04C09J9/02C09J11/04C08L2201/08C08L2205/03C08K2003/2296C08K2201/011C08K2003/3045C08K2003/3081C08L61/06C08L79/08C08K13/06C08K9/10C08K9/04C08K3/04C08K3/22C08K3/30
Inventor 王梅凤
Owner 句容市双诚电子有限公司
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