Unlock instant, AI-driven research and patent intelligence for your innovation.

Electroconductive particles

A technology of conductive particles and core particles, applied in the direction of conductive coatings, oxide conductors, non-metallic conductors, etc., to achieve the effect of inhibiting the deterioration of conductivity

Inactive Publication Date: 2014-03-26
MITSUI MINING & SMELTING CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above document describes that although the tin oxide particles do not contain antimony, they have the same electrical conductivity as tin oxide containing antimony, and do not have the characteristic blackening caused by the antimony content.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electroconductive particles
  • Electroconductive particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] exist figure 1 In the manufacturing device, it will be dispersed in 4000cm 3 1050g of barium sulfate particles in pure water into the volume of 10000cm 3 in the mother liquor tank. The barium sulfate particles are spherical particles with a primary particle diameter of 150 nm. Add pure water to the mother liquor tank to reach 9000cm 3 . 1080 g of sodium stannate was thrown in there, the temperature of the liquid was raised to 70° C., and it was circulated in the apparatus for 1 hour to perform preliminary dispersion. In the pre-dispersion, the ultrasonic generator 13 (SRT40-01Type manufactured by Shinco Industrial Co., Ltd.) was operated. The output power of the ultrasonic wave was set to 570W, and the frequency was set to 40kHz. This operation gives a mother liquor. While making this mother liquor be 3000cm with the flow velocity S1 that flows out from mother liquor tank 3 / minute mode circulation, while supplying 20% ​​sulfuric acid in the ultrasonic generato...

Embodiment 2

[0066] Instead of the barium sulfate particles used in Example 1, titanium dioxide particles were used. Titanium dioxide particles are spherical particles with a primary particle diameter of 160 nm, and 872 g of sodium stannate was used. Except for this, it carried out similarly to Example 1, and obtained the tin oxide-coated titanium dioxide particle which does not contain a dopant element.

Embodiment 3

[0068] Except that the usage-amount of the sodium stannate in Example 2 was reduced to 692g, it carried out similarly to Example 2, and obtained the tin oxide-coated titanium dioxide particle which does not contain a dopant element.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

An electroconductive particle having a core particle and a tin oxide-containing coating layer on the core particle. The tin oxide of the coating layer has a crystallite size of 70 to 200 angstroms. The electroconductive particle preferably has a ratio of R3 to R1 of 1 to 250, wherein R1 and R3 are respective surface resistivities of electroconductive films formed of a coating composition containing the electroconductive particle and prepared by 1-hour dispersing and 3-hour dispersing, respectively. The coating layer preferably comprises dopant element-free, electroconductive tin oxide.

Description

technical field [0001] The present invention relates to conductive particles having a coating layer containing tin oxide. Background technique [0002] As conventional techniques related to conductive tin oxide particles, techniques described in Patent Documents 1 and 2 below are known, for example. Patent Document 1 describes tin oxide fine particles composed of oxygen-deficient tin oxide whose atomic ratio O / Sn of oxygen to tin is 1.75 to 1.95. The above document describes that although the tin oxide fine particles do not contain antimony, they have the same electrical conductivity as tin oxide containing antimony, and do not have the characteristic blackening caused by containing antimony. The tin oxide fine particles are obtained by mixing a tin compound solution with an acidic or alkaline aqueous solution, adding a phosphorus compound after the reaction to form a precipitate, washing, drying, and pulverizing the precipitate, and then performing the reaction in the atmo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/08C09D5/24
CPCH01B1/08C01P2002/60C01P2004/32C01P2004/62C01P2006/10C01P2006/40C01P2006/62C01P2006/63C01P2006/64C09C1/027C09C1/3054C09C1/3661C09C1/407C09D5/24H01B1/02
Inventor 奈良昭浩井关博行坂上贵彦
Owner MITSUI MINING & SMELTING CO LTD