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Carbon black conductive fluid

A technology of conductive liquid and carbon black, which is applied to printed circuits, electrical components, conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as air pollution and poor adhesion of paint, and achieve less air pollution and better adhesion Good, the effect of stable dispersion system

Inactive Publication Date: 2011-08-24
深圳市合力泰光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the invention is to solve the problems of poor coating adhesion and easy air pollution in the prior art, and provide a kind of carbon black conductive liquid with good adhesion and low VOC

Method used

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Embodiment Construction

[0029] The anion dispersant of the present invention includes inorganic anion dispersant and organic anion dispersant, and inorganic anion dispersant can be polyphosphate, as sodium hexametaphosphate, sodium tripolyphosphate, sodium pyrophosphate etc.; Silicate such as Sodium metasilicate, etc.; lignosulfonate, such as sodium lignosulfonate, etc.; organic anion dispersants can be polycarboxylates such as polyacrylic acid and its derivatives, polymethacrylic acid and its derivatives; copolymers such as butyl Diene-styrene-acrylic acid copolymer and its derivatives, styrene-maleic anhydride copolymer and its derivatives, vinyl acetate-maleic anhydride copolymer and its derivatives; natural polymers and their modifications such as Gelatin, guar gum, ethyl cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl propyl cellulose, etc.; polyester dispersants containing substituted amino end groups, poly(hydroxy Acid) ester dispersants, oligomeric soap di...

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Abstract

The invention relates to a carbon black conductive liquid, comprising the following components based on unit weight part: .01-50 parts of carbon black, 0.1-50 parts of dispersant; 0.01-15 parts of binder; 50-99 parts of aquosity dispersion medium, wherein the dispersant is composed of one or more from the anion dispersant, the non-ion dispersant and the amphoteric dispersant, the binder is synthesized or natural polymer, the used dispersant makes the dispersing system stable, the dispersing performance good, anti environment influence strong without particle accumulation; the carbon black conductive liquid is coated on a special base material, especially the polyester film and polyimide film base body, which has good adhesive force, and forms uniform and stable coating layer without the phenomenon of abscission of the coating layer.

Description

technical field [0001] The invention relates to a carbon black conductive liquid. Background technique [0002] At present, the technology of forming a conductive coating on an insulating substrate is more and more widely used in the fields of electronic circuits and display technologies. In the manufacture of printed circuit boards (PCB), especially in the production of multilayer boards, the conduction between layers is involved, and hole metallization treatment is required. For a long time, the electroless copper deposition technology has been the mainstream technology to achieve hole metallization. It is an autocatalytic redox reaction, which has the problems of difficult wastewater treatment, serious pollution, difficult quality control and high operating costs. Chinese patent CN1063395A discloses a non-chemical plating hole metallization process, which adopts the process of forming a conductive coating on the insulating layer in the hole first, and then electroplating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/18H01B1/24H05K3/00
Inventor 魏丽琴张玉梅
Owner 深圳市合力泰光电有限公司
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