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Thick film type antirust coating and preparation method thereof

An anti-rust coating and anti-rust pigment technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of difficult epoxy coatings, stable curing, whitening, etc., to achieve good mechanical properties and anti-corrosion properties, The effect of good adhesion

Active Publication Date: 2010-11-10
PPG COATINGS KUNSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the particularity of the wet parts on land and the climate at sea, it is difficult for ordinary epoxy coatings to cure stably in high humidity environments.
For example, the steel structure in the tidal range area is subject to the high-frequency impact of tidal fluctuations all year round. Generally, the surface of the epoxy coating film will show defects such as whitening, discoloration, and softening of the film, which will seriously affect the anti-corrosion and anti-rust properties. Also unfavorable to aesthetics

Method used

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  • Thick film type antirust coating and preparation method thereof
  • Thick film type antirust coating and preparation method thereof
  • Thick film type antirust coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In the embodiments, the following abbreviations or pronouns are adopted:

[0050] YD-128 epoxy resin E1

[0051] YD-75 epoxy resin E2

[0052] BS-F bisphenol F type epoxy resin

[0053] P-BLACK iron oxide black pigment

[0054] BISPHENOL A Diphenolic Propane

[0055] PETROLEUM RESIN petroleum resin

[0056] THIX-1 Hydrogenated castor oil type thickening additive 1

[0057] THIX-2 Polyamide Wax Thickening Additive 2

[0058] E-10 Branched chain alkane hydroxycarboxylate glycidyl ester

[0059] TiO 2 Rutile Titanium Dioxide

[0060] SiO 2 Silicon Dioxide

[0061] TALC talcum powder

[0062] BASO 4 Barium sulfate

[0063] XYL ENE Xylene

[0064] IBA isobutanol

[0065] MXDA m-xylene

[0066] JEF-T Polyetheramine

[0067] Hie-54 Epoxy curing accelerator available from KEUMJUNG

[0068] BENZYLALCOHOL benzyl alcohol

[0069] Table 1 The first component formula table

[0070] Material name

Usage Wt%

BENZYL ALCOHOL

...

Embodiment 2

[0095] Weigh the components in Table 4, Table 5 and Table 6 corresponding to Example 2.

[0096] (1) Preparation of the first component base coating: heat epoxy resin, petroleum resin, anti-rust filler, anti-rust pigment and base coating solvent to 40°C-70°C, stir and mix evenly.

[0097] (2) Preparation of the second component curing agent: heat the epoxy resin, aromatic diamine, and curing agent solvent to 90° C. to 100° C., stir and mix evenly.

[0098] (3) Prepare the third component diluent: mix the aromatic hydrocarbon and alcohol evenly at room temperature.

[0099] Weigh the first component base paint, the second component curing agent and the third component diluent prepared above according to the mass ratio of 85:15:3, stir and mix evenly.

[0100] Table 4 Thick-film anti-rust coating first component matrix coating component list Unit: kg

[0101]

[0102]

[0103] Table 5 Formulation of the second component curing agent for thick film antirust coatings Unit:...

Embodiment 3

[0108] Weigh the components in Table 4, Table 5 and Table 6 corresponding to Example 3. The method in Example 2 was used to prepare the first component base paint, the second component curing agent and the third component diluent respectively.

[0109] Weigh the first component base coating, the second component curing agent and the third component diluent prepared above according to the mass ratio of 87:12:3, stir and mix evenly. The thick-film antirust paint of the present invention can be obtained.

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Abstract

The invention discloses a thick film type antirust coating and a preparation method thereof. The coating is prepared from 85-90 parts by weight of substrate coating, 10-15 parts by weight of curing agent and 3-5 parts by weight of diluent, wherein the substrate coating is prepared from 2-30 parts of epoxy resin, 2-6 parts of petroleum resin, 40-50 parts of antirust filler, 3-5 parts of antirust pigment and 2-20 parts of solvent for the substrate coating; the curing agent is prepared from 20-30 parts of epoxy resin, 10-30 parts of aromatic diamine and 20-50 parts of solvent for the curing agent; and the diluent is prepared from 60-80 parts by weight of arene and 20-40 parts by weight of fatty alcohol. The thick film type antirust coating of the invention can be continuously cured underwater, can also keep favorable mechanical capacity and antirust capacity, can obtain favorable adhesive force even in construction on a wet surface, and can be widely applied to the field of industrial protection.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a thick-film antirust coating and a preparation method thereof. Background technique [0002] Driven by the strong growth of China's economy, China's coating industry has shown a trend of rapid growth in recent years. [0003] Coating compositions comprising epoxy-functional epoxy esters and petroleum resin polymers and amine compounds are widely used in industry and daily life. These coating compositions typically include solutions of epoxy-functional epoxy ester copolymers and amine compounds in organic solvents. These coatings generally use epoxy resin and ammonia curing agent as binders together with inorganic anti-rust pigments and fillers for anti-rust and anti-corrosion applications. Such reactions can usually be carried out at room temperature. [0004] Due to its industrial needs, epoxy antirust coatings are widely used as a surface protection medium for of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D157/02C09D5/08
Inventor 何红兵
Owner PPG COATINGS KUNSHAN CO LTD
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