Composite material, waterborne anticorrosive paint and preparation method thereof

A technology of composite materials and anti-corrosion coatings, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of poor anti-corrosion performance, not easy to control, etc., achieve good compactness, not easy to coat holes and penetration, and improve corrosion resistance Effect

Inactive Publication Date: 2019-11-29
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor anticorrosion performance and difficult adjustment and c

Method used

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  • Composite material, waterborne anticorrosive paint and preparation method thereof
  • Composite material, waterborne anticorrosive paint and preparation method thereof
  • Composite material, waterborne anticorrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] An embodiment of the present invention provides an anti-corrosion material, the anti-corrosion material is g-C 3 N 4 / Modified sepiolite composite material, and g-C 3 N 4 The mass ratio to modified sepiolite is 1:0.5.

[0082] g-C above 3 N 4 Prepared with modified sepiolite by the following method:

[0083] Step a, with 1g g-C 3 N 4 Dissolve in methanol to prepare g-C with a concentration of 0.65mg / mL 3 N 4 Dispersions;

[0084] Step b, dissolve 0.5 g of sepiolite purified by natural sedimentation in propanol, prepare a sepiolite dispersion with a concentration of 3 wt %, then add 1.5 g of sodium dodecylbenzenesulfonate, and dissolve at 60° C. Condensate and reflux for 8 hours under the conditions of condensing, filtering, washing with propanol, drying at 35°C, and ball milling through a 200-mesh sieve to obtain modified sepiolite;

[0085] Step c, adding the modified sepiolite and 0.03g sodium dodecylbenzenesulfonate to the g-C 3 N 4 In the dispersion li...

Embodiment 2

[0088] An embodiment of the present invention provides an anti-corrosion material, the anti-corrosion material is g-C 3 N 4 / Modified sepiolite composite material, and g-C 3 N 4 The mass ratio to modified sepiolite is 1:1.

[0089] g-C above 3 N 4 Prepared with modified sepiolite by the following method:

[0090] Step a, with 1g g-C 3 N 4 Dissolved in butanol to prepare g-C with a concentration of 0.3mg / mL 3 N4 Dispersions;

[0091] Step b, dissolving 1g of sepiolite purified by natural sedimentation in butanol, preparing a sepiolite dispersion with a concentration of 4wt%, then adding 2.2g sodium dodecylbenzenesulfonate, at 64°C Condensate and reflux for 6.5 hours under the same conditions, filter, wash with ethanol, dry at 42°C, and ball mill through a 200-mesh sieve to obtain modified sepiolite;

[0092] Step c, adding the modified sepiolite and 0.1g octadecyltrimethylammonium bromide to the g-C 3 N 4 In the dispersion liquid, stir magnetically for 50 minutes, ...

Embodiment 3

[0095] An embodiment of the present invention provides an anti-corrosion material, the anti-corrosion material is g-C 3 N 4 / Modified sepiolite composite material, and g-C 3 N 4 The mass ratio to modified sepiolite is 1:3.

[0096] g-C above 3 N 4 Prepared with modified sepiolite by the following method:

[0097] Step a, with 1g g-C 3 N 4 Dissolve in ethanol to prepare g-C with a concentration of 0.5mg / mL 3 N 4 Dispersions;

[0098] Step b, dissolve 3g of sepiolite purified by natural sedimentation method in ethanol, prepare a sepiolite dispersion with a concentration of 5wt%, then add 6g of cetyltrimethylammonium bromide, at 65°C Condensate and reflux for 6 hours under the same conditions, filter, wash with ethanol, dry at 40°C, and ball mill through a 200-mesh sieve to obtain modified sepiolite;

[0099] Step c, adding the modified sepiolite and 0.2g sodium dodecylbenzenesulfonate to the g-C 3 N 4 In the dispersion liquid, magnetically stir for 1 hour, centrifu...

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Abstract

Relating to the technical field of corrosion prevention, the invention particularly discloses a composite material, a waterborne anticorrosive paint and a preparation method thereof. The composite material is prepared from g-C3N4 and sepiolite in a mass ratio of 1:0.5-10. The waterborne anticorrosive paint comprises a component A and a component B. Specifically, the component A comprises: the composite material, a curing agent, an anti-settling thixotropic agent, an anti-flash-rust agent and deionized water; the component B comprises: waterborne epoxy acrylic resin, a defoaming agent, a wetting dispersant, a levelling agent, an adhesion promoter and a curing agent. The anticorrosive paint prepared from g-C3N4 and modified sepiolite as the anticorrosive components has excellent salt spray resistance.

Description

technical field [0001] The invention relates to the field of anticorrosion technology, in particular to a composite material, a water-based anticorrosion coating and a preparation method thereof. Background technique [0002] In the fields of mechanical equipment, rail transit, construction engineering, etc., water-based industrial coatings have gained great development opportunities because they do not contain volatile organic solvents (VOC), meet the national green environmental protection requirements, and conform to the sustainable development concept of the times, and become the focus of attention in the field of industrial anti-corrosion coatings. hotspots. [0003] Graphene is a promising anti-corrosion component. At the same time, introducing conductive polymers and other components into graphene can reduce the oxidation rate of metals and form a passivation layer on the metal surface, slowing down the corrosion of metals. Using polyaniline and graphene as anti-corr...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D151/08C08F283/10C08F220/18
CPCC08F283/10C09D5/08C09D151/08C08K13/06C08K9/04C08K7/26C08K3/28
Inventor 肖凤娟钱程闫鑫蕊李红丽康泽坤韩金言顾文秀杨宏郁
Owner SHIJIAZHUANG TIEDAO UNIV
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