Graphene-rod-like aluminum-doped zinc oxide antistatic coating and preparation method thereof

An aluminum-doped zinc oxide, antistatic technology, applied in the direction of conductive coatings, coatings, etc., can solve the problems of large dosage, dark color, difficult to disperse, etc., achieve the effect of simple preparation method, wide source of raw materials, and enhanced conductivity

Active Publication Date: 2014-07-23
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN 101508855 A discloses a water-based graphite conductive coating and its preparation method. Its adhesion is 2-3 grades, and the volume resistivity of the coating is 0.2-0.35Ω·cm, but the adhesion is poor ; Publication number is CN 103131232 A discloses a kind of high-performance water-based graphene conductive coating and preparation method thereof, and this coating conductive filler consumption is more, causes coating color darker, and the c

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of coating component A: Add 100.0g rod-shaped aluminum-doped zinc oxide (diameter 50nm, length 1um, volume resistivity 10.0Ω·cm) into 400.0g deionized water to form a slurry with a solid content of 20% Stir and heat the slurry to 80°C, then add 0.20g of aminosilane coupling agent KH550 into the slurry, and continue to heat and stir for 6 hours to prepare a modified rod-shaped aluminum-doped zinc oxide dispersion, which is component A;

[0024] (2) Coating B component preparation: 1500.6g water-based acrylic emulsion, 50.0g flake graphene, 12.5g201 methyl silicone oil, 25.0g butyl acetate cellulose (CAB381-0.1), 25.0g organic bentonite (Claytone34) and 387.7g of deionized water were mixed together and mechanically dispersed for 3 hours to obtain component B;

[0025] (3) Preparation of water-based antistatic coating: according to the mass ratio of component A and component B at 25%, component A is 500.2g, component B is 2000.8g, stir evenly, that is, wate...

Embodiment 2

[0027] (1) Preparation of coating component A: Add 50.0g rod-shaped aluminum-doped zinc oxide (diameter 100nm, length 2μm, volume resistivity 50.8Ω·cm) into 75.0g deionized water to form a slurry with a solid content of 40% Stir and heat the slurry to 40°C, then add 1.0g of aminosilane coupling agent KH792 into the slurry, continue to keep warm and stir for 2 hours, and prepare a modified rod-shaped aluminum-doped zinc oxide dispersion, that is, component A;

[0028] (2) Coating B component preparation: 1080.6g water-based acrylic emulsion, 25.4g flake graphene, 6.4g201 methyl silicone oil, 12.7g butyl acetate cellulose (CAB551-0.01), 12.7g organic bentonite (Claytone34) and 133.6g of deionized water were mixed together and mechanically dispersed for 0.5 hours to obtain component B;

[0029] (3) Preparation of water-based antistatic coating: According to the mass ratio of component A and component B of 11%, component A is 126.0g, component B is 1145.4g, stir evenly, that is to...

Embodiment 3

[0031] (1) Preparation of coating component A: Add 10.0g rod-shaped aluminum-doped zinc oxide (diameter 80nm, length 3um, volume resistivity 100.0Ω·cm) into 10.0g deionized water to form a slurry with a solid content of 50% Stir and heat the slurry to 100°C, then add 0.1g of aminosilane coupling agent KBM-602 into the slurry, continue to heat and stir for 0.5 hours, and prepare a modified rod-shaped aluminum-doped zinc oxide dispersion, which is component A;

[0032] (2) Coating B component preparation: 142.0g water-based acrylic emulsion, 5.1g flake graphene, 1.6g BYK-141, 4.1g butyl acetate cellulose (CAB381-20), 6.1g organic bentonite (Claytone34) and 23.8g of deionized water were mixed together and mechanically dispersed for 0.5 hours to obtain component B;

[0033] (3) Preparation of water-based antistatic coating: according to the mass ratio of component A and component B of 11%, 20.1g of component A and 182.7g of component B, stir evenly, that is, prepare water-based gr...

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Abstract

The invention belongs to the technical field of production of antistatic coating and in particular relates to a graphene-rod-like aluminum-doped zinc oxide antistatic coating and a preparation method thereof. The antistatic coating comprises the following components in parts by weight: 60-85 parts of waterborne acrylic emulsion, 0.5-1.0 part of antifoaming agent, 1-2.5 parts of flatting agent, 1-3.5 parts of thickening agent, 2-3 parts of graphene, 7.15-31.25 parts of rod-like aluminum-doped zinc oxide dispersion and 0.5-30 parts of deionized water. Flake graphene and the rod-like aluminum-doped zinc oxide can form a three-dimensional conductive network in a coating system, so that the conductive performance of the coating can be enhanced, and compared with a coating formed by singly graphene or aluminum-doped zinc oxide, the graphene-rod-like aluminum-doped zinc oxide antistatic coating has the advantages that the same conductive effect is achieved, and the addition amount is obviously reduced. Moreover, due to a special structure, the mechanical property of the coating can be obviously enhanced.

Description

technical field [0001] The invention belongs to the technical field of antistatic paint production, in particular to a graphene-rod-shaped aluminum-doped zinc oxide antistatic paint and a preparation method thereof. Background technique [0002] Antistatic coatings refer to a type of special functional coatings that are applied on non-conductive substrates and have the ability to conduct current and eliminate accumulated static charges. They are mainly composed of conductive fillers, resins, thinners and additives. In recent years, with the rapid development of science and technology, antistatic coatings have been applied in various military and civilian industrial fields such as electronics, electrical appliances, aviation, chemicals, and printing. [0003] Graphene is a carbonaceous material with a two-dimensional sheet structure (<1nm) that has been newly discovered in recent years and has a two-dimensional sheet structure (<1nm). It has high strength and good condu...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12C09D5/24
Inventor 姚超张林刘文杰左士祥罗士平马建锋毛辉麾
Owner CHANGZHOU UNIV
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