Conductive ink for heating of automobile rearview mirror and preparation method of conductive ink

A technology of automobile rearview mirror and conductive ink, applied in the directions of ink, separation method, chemical instrument and method, etc., can solve the problems of poor resistance to cold and thermal shock, great significance for research and development, slow heating speed, etc., to eliminate bubbles and enhance conductivity. Sex and adhesion, the effect of enhancing adaptability

Pending Publication Date: 2021-10-22
SHANGHAI BAOYIN ELECTRONICS MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing conductive ink products have the defects of slow heating speed, low hardness, large power consumption, large resistance, and poor resistance to cold and heat shocks, so the research and development of this product is of great significance

Method used

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  • Conductive ink for heating of automobile rearview mirror and preparation method of conductive ink
  • Conductive ink for heating of automobile rearview mirror and preparation method of conductive ink
  • Conductive ink for heating of automobile rearview mirror and preparation method of conductive ink

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Embodiment 1-5

[0034] A preparation method of conductive ink for automobile rearview mirror heating, each component and composition are shown in Table 1. Among them, the resin carrier is used as the bonding phase, and the graphene powder used is an ultrafine multi-layer flake powder, with an average particle size of 5-10 μm and an average thickness of 5-10 nm; the conductive carbon black used has an average particle size of 5-10 μm; The conductive silver powder has an average particle size of 5-6 μm.

[0035] The consumption of each component in the embodiment is as shown in table 1:

[0036] Table 1

[0037]

[0038]

[0039] The main steps of the actual production process are as follows:

[0040] The preparation of the resin carrier premix is ​​to add the acrylic resin to the reaction kettle according to the formula ratio, and then add the absolute ethanol and glycerin to the reaction kettle in the form of dropwise addition. The dropping time is 1h, and the stirring is continued fo...

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Abstract

The invention relates to conductive ink for heating of an automobile rearview mirror and a preparation method of the conductive ink. The conductive ink comprises the following components in parts by mass: 15-20 parts of a conductive and heat-conducting carrier, 20-35 parts of a filling body, 20-85 parts of a resin carrier, 0.5-1 part of an anti-settling agent, 0.2-0.5 parts of a dispersing agent, 0.2-0.5 parts of a thickening agent and 0.2-2 parts of a solvent. The conductive ink is obtained by the steps of: (1) powder drying; (2) sanding and dispersing; (3) vacuum filtration; and (4) homogenizing and stirring. Compared with the prior art, the conductive ink has the advantages of good conductivity, strong adhesive force, good wrapping property, fast curing, long storage time and the like.

Description

technical field [0001] The invention relates to the field of conductive ink, in particular to a conductive ink for automobile rearview mirror heating and a preparation method thereof. Background technique [0002] Conductive inks are widely used in printed circuits, semiconductor packaging, solar cells and other fields. The conductive ink for heating of automobile rearview mirror belongs to carbon-based conductive ink, which is composed of basic raw materials such as graphene powder. [0003] The heating film of automobile rearview mirror belongs to PTC material. PTC material is a kind of conductive composite material with high heat sensitivity. Its resistance increases with the increase of temperature. When the temperature reaches a certain temperature transition point of the material, the material Resistivity increases by 10 over temperature range of performance 3 -10 9 Magnitude. It is mainly used for self-controlled thermal heating system, over-current protection ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/107C09D11/03C09D11/033B01D19/00B01D19/02B01D29/01B01F13/06
CPCC09D11/52C09D11/107C09D11/03C09D11/033B01D29/01B01D19/02B01D19/0052
Inventor 江海涵朱庆明
Owner SHANGHAI BAOYIN ELECTRONICS MATERIALS CO LTD
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