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Antistatic coating taking rare-earth-modified barium zirconate titanate nano-powder as conductive filler, and preparation method thereof

A barium zirconate titanate and rare earth modification technology, applied in conductive coatings, polyester coatings, fibrous fillers, etc., can solve the problems of large changes in surface resistivity and high cost, and achieve improved easy oxidation, low production cost, and high performance. stable effect

Inactive Publication Date: 2013-04-17
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of existing metal powder as the conductive filler of antistatic coating, such as high cost and large change of surface resistivity after high temperature aging; Filler antistatic coating and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0011] Embodiment 1: In this embodiment, the rare earth modified barium zirconate titanate nanopowder is used as the antistatic coating of the conductive filler in terms of mass and number by 100 parts of the polymer matrix, 5 to 10 parts of the rare earth modified barium zirconate titanate Nano powder, 10-20 parts of diluent, 10-15 parts of curing agent and 3-5 parts of coupling agent. The rare earth modified barium zirconate titanate nanopowder is that the rare earth element is infiltrated into the rare earth doped BaZr 0.2 Ti 0.8 o 3 obtained from nanopowder.

specific Embodiment approach 2

[0012] Embodiment 2: This embodiment is different from Embodiment 1 in that: the polymer matrix is ​​epoxy resin, unsaturated polyester resin or a mixture of both. Others are the same as in the first embodiment. In this embodiment, when the polymer matrix is ​​a mixture, the epoxy resin and the unsaturated polyester resin can be mixed in any ratio.

specific Embodiment approach 3

[0013] Embodiment 3: This embodiment is different from Embodiment 2 in that: the epoxy resin is E-51 epoxy resin. Others are the same as in the second embodiment.

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Abstract

The invention provides an antistatic coating taking rare-earth-modified barium zirconate titanate nano-powder as conductive filler, and a preparation method thereof, which belongs to the field of antistatic coatings. The invention solves the problems that the prior metal powder serving as conductive filler of antistatic coatings is high in cost, big in surface resistivity change after high-temperature aging, and the like. The antistatic coating is prepared from polymer matrix, rare-earth-modified barium zirconate titanate nano-powder, diluent, curing agent and coupling agent. The preparation method comprises the following steps: weighing polymer matrix, diluent, curing agent and coupling agent respectively, mixing the materials well and then placing the mixture for 1 hour; adding rare-earth-modified barium zirconate titanate nano-powder and then performing ultrasonic dispersion for 5 minutes; performing normal-temperature curing to obtain the antistatic coating. The antistatic coatinghas the characteristics of low cost, strong anti-aging property, simple process method and no environmental pollution. After one hour of aging at 150 DEG C, the surface resistivity change of the antistatic coating is 5.3 to 7.8 percent.

Description

technical field [0001] The invention belongs to the field of antistatic coatings; in particular, it relates to antistatic coatings in which rare earth modified barium zirconate titanate nanopowder is used as a conductive filler and a preparation method thereof. Background technique [0002] Antistatic coating is a kind of functional coating with conductive properties, which has the functions of eliminating static electricity and electromagnetic shielding. It is currently widely used in many fields such as electronics industry, construction industry and aviation industry. Antistatic coatings can be divided into filling type and intrinsic type according to their conductive mechanism. Intrinsic type refers to the conductive ability of the coating due to the conductivity of the polymer material itself; filled type refers to the addition of conductive fillers to the coating formula to make it conductive. The preparation of conductive polymer materials is very complicated, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D167/06C09D5/24C09C1/36C09C3/06
Inventor 郝素娥付东升李佳龙付秋月王春艳
Owner HARBIN INST OF TECH
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