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A kind of wet and rusty solvent-free graphene modified epoxy coating and preparation method thereof

A graphene modification and epoxy coating technology, applied in the field of coatings, can solve problems such as poor solvent resistance, and achieve the effects of improving anti-corrosion performance, high impact strength and strong adhesion

Active Publication Date: 2019-05-24
邹亚静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyamide cured epoxy resin paint film has good performance, strong adhesion, good abrasion resistance, water resistance, and weather resistance, but poor solvent resistance

Method used

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  • A kind of wet and rusty solvent-free graphene modified epoxy coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of damp band rust solvent-free graphene modified epoxy paint, comprises A material and B material; Its parts by weight are as follows:

[0051] Material A is

[0052] Solvent-free epoxy resin E-51350 parts

[0053] 250 parts of organic zinc-rich epoxy resin

[0054] Epoxy wetting and dispersing additive 15 parts

[0055] Graphene-iron oxide nanorod composite material 30 parts

[0056] Mica iron oxide 110 parts

[0057] Talcum powder 55 parts

[0058] Organic bentonite 7 parts

[0059] Metal Ti nano powder 7 parts

[0060] 7 parts of silane coupling agent

[0061] Rheology additive 4 parts

[0062] Leveling agent 4 parts

[0063] Material B is

[0064] Cashew shell oil modified phenalkamine 25 parts

[0065] 3 parts of dispersing aid

[0066] Polyamide curing agent 25 parts

[0067] Accelerator 2 parts.

[0068] After testing, the coating has good self-leveling, uniform color and 100% solid content. It is an environmentally friendly coating without V...

Embodiment 2

[0070] A kind of damp band rust solvent-free graphene modified epoxy paint, comprises A material and B material; Its parts by weight are as follows:

[0071] Material A is

[0072] Solvent-free epoxy resin E-51350 parts

[0073] 250 parts of organic zinc-rich epoxy resin

[0074] Epoxy wetting and dispersing additive 15 parts

[0075] Graphene-iron oxide nanorod composite material 20 parts

[0076] Mica iron oxide 110 parts

[0077] Talcum powder 55 parts

[0078] Organic bentonite 7 parts

[0079] Metal Ti nano powder 7 parts

[0080] 7 parts of silane coupling agent

[0081] Rheology additive 4 parts

[0082] Leveling agent 4 parts

[0083] Material B is

[0084] Cashew shell oil modified phenalkamine 25 parts

[0085] 3 parts of dispersing aid

[0086] Polyamide curing agent 25 parts

[0087] Accelerator 2 parts.

[0088] After testing, the coating has good self-leveling, uniform color and 100% solid content. It is an environmentally friendly coating without V...

Embodiment 3

[0090] A kind of damp band rust solvent-free graphene modified epoxy paint, comprises A material and B material; Its parts by weight are as follows:

[0091] Material A is

[0092] Solvent-free epoxy resin E-51 350 parts

[0093] 250 parts of organic zinc-rich epoxy resin

[0094] Epoxy wetting and dispersing additive 15 parts

[0095] Graphene-iron oxide nanorod composite material 40 parts

[0096] Mica iron oxide 110 parts

[0097] Talcum powder 55 parts

[0098] Organic bentonite 7 parts

[0099] Metal Ti nano powder 7 parts

[0100] 7 parts of silane coupling agent

[0101] Rheology additive 4 parts

[0102] Leveling agent 4 parts

[0103] Material B is

[0104] Cashew shell oil modified phenalkamine 25 parts

[0105] 3 parts of dispersing aid

[0106] Polyamide curing agent 25 parts

[0107] Accelerator 2 parts.

[0108] After testing, the coating has good self-leveling, uniform color and 100% solid content. It is an environmentally friendly coating without ...

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Abstract

The invention relates to humid rusted solvent-free graphene modified epoxy paint and a preparation method thereof. The paint is prepared from a material A and a material B, wherein the material A is colored paint; the material B is a curing agent; graphene-oxide nano-rods are added into the colored paint; in the aspect of selecting epoxy resin, two types of epoxy resin including solvent-free epoxy resin E-51 and organic zinc-enriched epoxy resin, which have complementary properties, are selected, so that the adhesion force and antirust effect of the paint and a substrate are enhanced; in the aspect of selecting the curing agent, two curing agents are adopted; a polyamide curing agent is added on the basis of a cashew nut shell oil modified phenolic aldehyde amine curing agent which is researched latest, so that the humid rusted solvent-free graphene modified epoxy paint is prepared.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a wet and rusty solvent-free graphene-modified epoxy coating and a preparation method thereof. Background technique [0002] Solvent-free epoxy coatings are new types of coatings developed recently. Solvent-free epoxy coatings are high-solid coatings, and solvent-free epoxy coatings are epoxy resin coatings that do not contain volatile organic solvents. It is a two-component coating, one component is epoxy resin, reactive diluent, pigment, extender pigment, and the other is curing agent. Solvent-free epoxy coatings should use low-molecular liquid epoxy resins (such as E-44) to reduce the viscosity of the coating. If the viscosity is still high, it is necessary to add an active diluent to adjust the viscosity. The commonly used diluents are cresyl glycidyl ether, phenyl glycidyl ether, butyl glycidyl ether, etc. The amount of diluent is generally less than 15% of the resin mass. When ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/10C08G59/62C08G59/46
CPCC08G59/46C08G59/62C08L2205/025C09D5/10C09D5/106C09D7/61C09D7/63C09D163/00C08L63/00C08K13/04C08K7/00C08K3/04C08K3/34C08K3/346
Inventor 邹亚静
Owner 邹亚静
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