AU2021202213B1 - Corrosion-resistant and aging-resistant color-coated steel plate coating, color-coated steel plate containing same and their preparation methods - Google Patents
Corrosion-resistant and aging-resistant color-coated steel plate coating, color-coated steel plate containing same and their preparation methods Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
Abstract
Disclosed are a corrosion-resistant and aging-resistant color-coated steel plate coating,
a color-coated steel plate containing the coating, and their preparation methods. The
coating comprises component A and component B, wherein the component A comprises
the following raw materials in parts by weight: 42-52 parts of unsaturated polyester resin,
17-23 parts of polyester triacrylate, 5-8 parts of tripropylene glycol diacrylate, 25-32 parts
of phenolic epoxy resin, 14-18 parts of polyaniline modified epoxy resin, 6.5-9 parts of a
mixture of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane, 4-6 parts of
vinyl ester glass-flake cement, 2.4-2.7 parts of a filler, 3.5-5.5 parts of an antioxidant, 3-5
parts of an anti-ultraviolet agent, and 90-150 parts of a solvent; the component B
comprises the following raw materials in parts by weight: 30-37 parts of dicyandiamide,
12-16 parts of polyamide, 45-55 parts of dibenzoyl peroxide, and 15-20 parts of
cyclohexanone peroxide. The coating of the invention has good resistance to neutral salt
spray, good artificial aging resistance, high hardness, and good wear resistance.
20
Description
[0001] The present invention relates to the technical field of coatings for
color-coated steel plates, in particular to a corrosion-resistant and aging-resistant
color-coated steel plate coating, a color-coated steel plate containing the same and their
preparation methods.
[0002] Because of its beautiful appearance, different color combinations and
excellent protective performance, color-coated steel plates are widely used in the roofs and
walls of a light steel structure in the construction industry. With the characteristics of
simple operation and wide application range, corrosion-resistant coatings are still the most
extensive corrosion-resistant method for steel structures. Corrosion-resistant coatings
commonly used at present mainly include epoxy resin coatings, polyurethane resin
coatings, and glass-flake coatings. Epoxy resin has excellent alkali resistance,
anti-permeability, adhesion and mechanical properties, and has become one of the most
widely used resins in corrosion-resistant coatings.
[0003] However, the color-coated steel plate coatings currently used still have the
following problems:
[0004] With poor corrosion resistance, the color-coated steel plate coatings
currently used are prone to rusting, blistering and falling off;
[0005] With poor aging resistance, the color-coated steel plate coatings currently
used are prone to rusting, blistering and cracking;
[0006] Since the coating has low hardness and poor wear resistance, with the
increase of use time, the color-coated steel sheets often encounter failure problems such as
loss of gloss, chalking, discoloration, and rust corrosion, and their overall performance is
poor.
[0007] Based on the above situation, the objective of the invention is to provide a
corrosion-resistant and aging-resistant color-coated steel plate coating, a color-coated steel
plate containing the coating, and their preparation methods, which can effectively solve
the above problems.
[0008] In order to solve the above technical problems, the invention further adopts
the following technical solution:
[0009] A corrosion-resistant and aging-resistant color-coated steel plate coating,
including component A and component B, wherein the mass ratio of the component A to
the component B is 100:(1.4-1.8);
[0010] the component A comprises the following raw materials in parts by weight:
[0011] 42-52 parts of unsaturated polyester resin,
[0012] 17-23 parts of polyester triacrylate,
[0013] 5-8 parts of tripropylene glycol diacrylate,
[0014] 25-32 parts of phenolic epoxy resin,
[0015] 14-18 parts of polyaniline modified epoxy resin,
[0016] 6.5-9 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,
[0017] 4-6 parts of vinyl ester glass-flake cement,
[0018] 2.4-2.7 parts of a filler,
[0019] 3.5-5.5 parts of an antioxidant,
[0020] 3-5 parts of an anti-ultraviolet agent, and
[0021] 90-150 parts of a solvent;
[0022] the component B comprises the following raw materials in parts by weight:
-37 parts of dicyandiamide, 12-16 parts of polyamide, 45-55 parts of dibenzoyl
peroxide, and 15-20 parts of cyclohexanone peroxide.
[0023] Preferably, the mass ratio of the component A to the component B is
100:1.6;
[0024] the component A comprises the following raw materials in parts by weight:
[0025] 48 parts of unsaturated polyester resin,
[0026] 20 parts of polyester triacrylate,
[0027] 6.5 parts of tripropylene glycol diacrylate,
[0028] 28.5 parts of phenolic epoxy resin,
[0029] 16 parts of polyaniline modified epoxy resin,
[0030] 7.75 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,
[0031] 5 parts of vinyl ester glass-flake cement,
[0032] 2.55 parts of a filler,
[0033] 4.5 parts of an antioxidant,
[0034] 4 parts of an anti-ultraviolet agent, and
[0035] 130 parts of a solvent;
[0036] the component B comprises the following raw materials in parts by weight:
33 parts of dicyandiamide, 14 parts of polyamide, 50 parts of dibenzoyl peroxide, and 18
parts of cyclohexanone peroxide.
[0037] Preferably, the mass ratio of the 3-trimethylsilyl anisole to the dimethyl
ketoxime trimethylsilane is 1:(1.6-1.85).
[0038] Preferably, the filler is nitrogen-doped graphene.
[0039] Preferably, the antioxidant is antioxidant 1010.
[0040] Preferably, the solvent is at least one of ethanol, butyl acetate, dibutyl ester,
and methyl ethyl ketone.
[0041] Preferably, the anti-ultraviolet agent is ultraviolet blocking agent UV-3638.
[0042] The invention also provides a preparation method of the corrosion-resistant
and aging-resistant color-coated steel plate coating, including:
[0043] weighing the following materials in parts by weight: unsaturated polyester
resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin,peroxide, a mixture of 3-trimethylsilyl anisole and dimethyl
ketoxime trimethylsilane, vinyl ester glass-flake cement, a filler, an antioxidant, an
anti-ultraviolet agent, a solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and
cyclohexanoneperoxide;
[0044] preparing component A: firstly adding unsaturated polyester resin,
polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, and the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane into the solvent, and stirring at 500-800r/min for 30-40min; then adding
the vinyl ester glass-flake cement, the filler, the antioxidant and the anti-ultraviolet agent,
and carrying out shearing dispersion at 1500-1800r/min for 20-30min, thus obtaining the
component A;
[0045] preparing component B: well mixing dicyandiamide, polyamide, dibenzoyl
peroxide, and cyclohexanone peroxide to obtain component B; and
[0046] mixing the component A and the component B according to the mass ratio
of 100:(1.4-1.8) for instant use.
[0047] The invention further provides a color-coated steel plate containing the
corrosion-resistant and aging-resistant color-coated steel plate coating, including a
color-coated steel plate body and a corrosion-resistant and aging-resistant paintcoat, wherein the corrosion-resistant and aging-resistant paintcoat is arranged on the surface of the color-coated steel plate body, and the corrosion-resistant and aging-resistant paintcoat is made of the corrosion-resistant and aging-resistant color-coated steel plate coating.
[0048] The invention further provides a preparation method of the color-coated
steel plate containing the corrosion-resistant and aging-resistant color-coated steel plate
coating, including: uniformly coating the corrosion-resistant and aging-resistant
color-coated steel plate coating on the surface of the color-coated steel plate body, and
drying, thus obtaining the color-coated steel plate containing the corrosion-resistant and
aging-resistant color-coated steel plate coating.
[0049] Compared with the prior art, the present invention has the following
advantages and beneficial effects:
[0050] According to the corrosion-resistant and aging-resistant color-coated steel
plate coating of the invention, by selecting raw materials carefully and optimizing the
content of each raw material, unsaturated polyester resin, polyester triacrylate,
tripropylene glycol diacrylate, novolac epoxy resin, polyaniline modified epoxy
resin,peroxide, the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,vinyl ester glass-flake cement, the filler, the antioxidant, the
anti-ultraviolet agent, the solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and
cyclohexanone peroxide are selected in an appropriate ratio; they not only give full play to
their respective advantages, but also complement each other and promote each other. The
paintcoat made from the coating has good resistance to neutral salt spray, and can be
soaked for a long time without rust, blistering, or falling off. It has excellent corrosion
resistance; has good artificial aging resistance and can withstand a long test time without
rust, blistering or cracking, thus being great in aging resistance; and has high hardness and
good wear resistance.
[0051] The preparation method of the invention has simple process and simple operation, and saves manpower and equipment costs.
[0052] In order to enable those skilled in the art to better understand the technical
solutions of the invention, the preferred embodiments of the invention will be described
below in conjunction with specific embodiments, but it should not be understood as
limiting this patent.
[0053] The experimental method or test methods described in the following
embodiments are conventional methods unless otherwise specified; the reagents and
materials, unless otherwise specified, are obtained from conventional commercial
channels or prepared by conventional methods.
[0054] Example 1:
[0055] Provided is a corrosion-resistant and aging-resistant color-coated steel plate
coating, including component A and component B, wherein the mass ratio of the
component A to the component B is 100:1.4;
[0056] the component A comprises the following raw materials in parts by weight:
[0057] 42 parts of unsaturated polyester resin,
[0058] 17 parts of polyester triacrylate,
[0059] 5 parts of tripropylene glycol diacrylate,
[0060] 25 parts of phenolic epoxy resin,
[0061] 14 parts of polyaniline modified epoxy resin,
[0062] 6.5 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,
[0063] 4 parts of vinyl ester glass-flake cement,
[0064] 2.4 parts of a filler,
[0065] 3.5 parts of an antioxidant,
[0066] 3 parts of an anti-ultraviolet agent, and
[0067] 90 parts of a solvent;
[0068] the component B includes the following raw materials in parts by weight:
parts of dicyandiamide, 12 parts of polyamide, 45 parts of dibenzoyl peroxide, and 15
parts of cyclohexanone peroxide.
[0069] In this example, the mass ratio of the 3-trimethylsilyl anisole to the
dimethyl ketoxime trimethylsilane is 1:1.6.
[0070] In this example, the filler is nitrogen-doped graphene.
[0071] In this example, the antioxidant is antioxidant 1010.
[0072] In this example, the solvent includes ethanol and butyl acetate which are in
a mass ratio of 1:1.
[0073] In this example, the anti-ultraviolet agent is ultraviolet blocking agent
UV-3638.
[0074] In this example, further provided is a preparation method of the
corrosion-resistant and aging-resistant color-coated steel plate coating, including:
[0075] weighing the following materials in parts by weight: unsaturated polyester
resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane, vinyl ester glass-flake cement, a filler, an antioxidant, an anti-ultraviolet
agent, a solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and cyclohexanone
peroxide;
[0076] Preparing component A: firstly adding unsaturated polyester resin,
polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, and the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane into the solvent, and stirring at 500r/min for 40min; then adding the vinyl
ester glass-flake cement, the filler, the antioxidant and the anti-ultraviolet agent, and carrying out shearing dispersion at 1800r/min for 20min, thus obtaining the component A;
[0077] preparing component B: well mixing dicyandiamide, polyamide, dibenzoyl
peroxide, and cyclohexanone peroxide to obtain component B; and
[0078] mixing the component A and the component B according to the mass ratio
of 100:1.4 for instant use.
[0079] Further provided is a color-coated steel plate containing the
corrosion-resistant and aging-resistant color-coated steel plate coating, including a
color-coated steel plate body and a corrosion-resistant and aging-resistant paintcoat,
wherein the corrosion-resistant and aging-resistant paintcoat is arranged on the surface of
the color-coated steel plate body, and the corrosion-resistant and aging-resistant paintcoat
is made of the corrosion-resistant and aging-resistant color-coated steel plate coating.
[0080] Further provided is a preparation method of the color-coated steel plate
containing the corrosion-resistant and aging-resistant color-coated steel plate coating,
including: uniformly coating the corrosion-resistant and aging-resistant color-coated steel
plate coating on the surface of the color-coated steel plate body, and drying, thus obtaining
the color-coated steel plate containing the corrosion-resistant and aging-resistant
color-coated steel plate coating.
[0081] Example 2:
[0082] Provided is a corrosion-resistant and aging-resistant color-coated steel plate
coating, including component A and component B, wherein the mass ratio of the
component A to the component B is 100:1.8;
[0083] the component A comprises the following raw materials in parts by weight:
[0084] 52 parts of unsaturated polyester resin,
[0085] 23 parts of polyester triacrylate,
[0086] 8 parts of tripropylene glycol diacrylate,
[0087] 32 parts of phenolic epoxy resin,
[0088] 18 parts of polyaniline modified epoxy resin,
[0089] 9 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,
[0090] 6 parts of vinyl ester glass-flake cement,
[0091] 2.7 parts of a filler,
[0092] 5.5 parts of an antioxidant,
[0093] 5 parts of an anti-ultraviolet agent, and
[0094] 150 parts of a solvent;
[0095] the component B includes the following raw materials in parts by weight:
37 parts of dicyandiamide, 16 parts of polyamide, 55 parts of dibenzoyl peroxide, and 20
parts of cyclohexanone peroxide.
[0096] In this example, the mass ratio of the 3-trimethylsilyl anisole to the
dimethyl ketoxime trimethylsilane is 1:1.85.
[0097] In this example, the filler is nitrogen-doped graphene.
[0098] In this example, the antioxidant is antioxidant 1010.
[0099] In this example, the solvent is butyl acetate.
[00100] In this example, the anti-ultraviolet agent is ultraviolet blocking agent
UV-3638.
[00101] In this example, further provided is a preparation method of the
corrosion-resistant and aging-resistant color-coated steel plate coating, including:
[00102] weighing the following materials in parts by weight: unsaturated polyester
resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane, vinyl ester glass-flake cement, a filler, an antioxidant, an anti-ultraviolet
agent, a solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and cyclohexanone
peroxide;
[00103] Preparing component A: firstly adding unsaturated polyester resin,
polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, and the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane into the solvent, and stirring at 800r/min for 30min; then adding the vinyl
ester glass-flake cement, the filler, the antioxidant and the anti-ultraviolet agent, and
carrying out shearing dispersion at 15OOr/min for 30mmin, thus obtaining the component A;
[00104] preparing component B: well mixing dicyandiamide, polyamide, dibenzoyl
peroxide, and cyclohexanone peroxide to obtain component B; and
[00105] mixing the component A and the component B according to the mass ratio
of 100:1.8 for instant use.
[00106] Further provided is a color-coated steel plate containing the
corrosion-resistant and aging-resistant color-coated steel plate coating, including a
color-coated steel plate body and a corrosion-resistant and aging-resistant paintcoat,
wherein the corrosion-resistant and aging-resistant paintcoat is arranged on the surface of
the color-coated steel plate body, and the corrosion-resistant and aging-resistant paintcoat
is made of the corrosion-resistant and aging-resistant color-coated steel plate coating.
[00107] Further provided is a preparation method of the color-coated steel plate
containing the corrosion-resistant and aging-resistant color-coated steel plate coating,
including: uniformly coating the corrosion-resistant and aging-resistant color-coated steel
plate coating on the surface of the color-coated steel plate body, and drying, thus obtaining
the color-coated steel plate containing the corrosion-resistant and aging-resistant
color-coated steel plate coating.
[00108] Example 3:
[00109] Provided is a corrosion-resistant and aging-resistant color-coated steel plate
coating, including component A and component B, wherein the mass ratio of the
component A to the component B is 100:1.6;
[00110] In this example, the component A includes the following raw materials in
parts by weight:
[00111] 48 parts of unsaturated polyester resin,
[00112] 20 parts of polyester triacrylate,
[00113] 6.5 parts of tripropylene glycol diacrylate,
[00114] 28.5 parts of phenolic epoxy resin,
[00115] 16 parts of polyaniline modified epoxy resin,
[00116] 7.75 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane,
[00117] 5 parts of vinyl ester glass-flake cement,
[00118] 2.55 parts of a filler,
[00119] 4.5 parts of an antioxidant,
[00120] 4 parts of an anti-ultraviolet agent, and
[00121] 130 parts of a solvent;
[00122] In this example, the component B includes the following raw materials in
parts by weight: 33 parts of dicyandiamide, 14 parts of polyamide, 50 parts of dibenzoyl
peroxide, and 18 parts of cyclohexanone peroxide.
[00123] In this example, the mass ratio of the 3-trimethylsilyl anisole to the
dimethyl ketoxime trimethylsilane is 1:1.725.
[00124] In this example, the filler is nitrogen-doped graphene.
[00125] In this example, the antioxidant is antioxidant 1010.
[00126] In this example, the solvent includes ethanol, dibutyl ester, and butanone
which are in a mass ratio of 1:0.8:1.
[00127] In this example, the anti-ultraviolet agent is ultraviolet blocking agent
UV-3638.
[00128] In this example, further provided is a preparation method of the corrosion-resistant and aging-resistant color-coated steel plate coating, including:
[00129] weighing the following materials in parts by weight: unsaturated polyester
resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane, vinyl ester glass-flake cement, a filler, an antioxidant, an anti-ultraviolet
agent, a solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and cyclohexanone
peroxide;
[00130] Preparing component A: firstly adding unsaturated polyester resin,
polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline
modified epoxy resin, and the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime
trimethylsilane into the solvent, and stirring at 650r/min for 35min; then adding the vinyl
ester glass-flake cement, the filler, the antioxidant and the anti-ultraviolet agent, and
carrying out shearing dispersion at 1650r/min for 25min, thus obtaining the component A;
[00131] preparing component B: well mixing dicyandiamide, polyamide, dibenzoyl
peroxide, and cyclohexanone peroxide to obtain component B; and
[00132] mixing the component A and the component B according to the mass ratio
of 100:1.6 for instant use.
[00133] Further provided is a color-coated steel plate containing the
corrosion-resistant and aging-resistant color-coated steel plate coating, including a
color-coated steel plate body and a corrosion-resistant and aging-resistant paintcoat,
wherein the corrosion-resistant and aging-resistant paintcoat is arranged on the surface of
the color-coated steel plate body, and the corrosion-resistant and aging-resistant paintcoat
is made of the corrosion-resistant and aging-resistant color-coated steel plate coating.
[00134] Further provided is a preparation method of the color-coated steel plate
containing the corrosion-resistant and aging-resistant color-coated steel plate coating,
including: uniformly coating the corrosion-resistant and aging-resistant color-coated steel plate coating on the surface of the color-coated steel plate body, and drying, thus obtaining the color-coated steel plate containing the corrosion-resistant and aging-resistant color-coated steel plate coating.
[00135] Comparative Example 1
[00136] Comparative Example 1 is identical to Example 3 except that polyester
triacrylate is not used in Comparative Example 1.
[00137] Comparative Example 2
[00138] Comparative Example 2 is identical to Example 3 except that tripropylene
glycol diacrylate is not used in Comparative Example 2.
[00139] Comparative Example 3
[00140] Comparative Example 3 is identical to Example 3 except that phenolic
epoxy resin is replaced with epoxy resin E44.
[00141] Comparative Example 4
[00142] Comparative Example 4 is identical to Example 3 except that polyaniline
modified epoxy resin is not used in Comparative Example 4.
[00143] Comparative Example 5
[00144] Comparative Example 5 is identical to Example 3 except that the mixture
of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane is replaced with
3-trimethylsilyl anisole.
[00145] Comparative Example 6
[00146] Comparative Example 6 is identical to Example 3 except that vinyl ester
glass-flake cement is not used in Comparative Example 6.
[00147] Comparative Example 7
[00148] Comparative Example 7 is identical to Example 3 except that polyamide is
replaced with dicyandiamide and cyclohexanone peroxide is replaced with dibenzoyl
peroxide.
[00149] The performance tests are performed below on the corrosion-resistant and
aging-resistant color-coated steel plate coatings obtained in Examples 1-3 of the present
invention and in Comparative Examples 1-7, and the test results are shown in Table 1.
[00150] During the tests, the same specifications of the corrosion-resistant and
aging-resistant color-coated steel plate coatings obtained in Examples 1-3 of the present
invention and the color-coated steel plate coating products obtained in Comparative
Examples 1-7 were selected, and the dry film thickness of the coatings was 20 [m.
Resistance to neutral salt spray: the test was carried out according to the provisions of ISO
7253:1996 (the test samples did not need to be scratched), and the time for the coating
with slight color change, but without blistering, rust, cracking, and falling off was
obtained. Artificial aging resistance: the test was carried out according to the provisions of
ISO 4628:1980 (fluorescent ultraviolet UVA-340), the time for the coating without
blistering, rust, cracking, or falling off was obtained Pencil hardness: the test was carried
out according to ISO 15184:1998.
[00151] Table 1
Artificial aging Resistance to neutral salt Pencil hardness resistance spray (hour) (hour) Example 1 5 5645 4258 Example 2 5 5676 4363 Example 3 5 5688 4474 Comparative 4 4168 3215 Example1I
Example 2 5 4536 3047 Comparative Example 3 Comparative 5 4327 3261 Example 4
Comparative 4 4216 3245 Example 5 Comparative 3 5052 2906 Example 6 Comparative 4 2465 3074 Example 7
[00152] It can be seen from the above table that the corrosion-resistant and
aging-resistant color-coated steel plate coating of the invention has the following
advantages: the paintcoat made from the coating has good resistance to neutral salt spray,
and can be soaked for a long time without rust, blistering, or falling off; the coating has
excellent corrosion resistance; has good artificial aging resistance and can withstand a
long test time without rust, blistering or cracking, thus being great in aging resistance; and
has high hardness and good wear resistance.
[00153] The above are only the preferred embodiments of the invention. It should
be noted that the above preferred embodiments should not be regarded as limiting the
invention, and the protection scope of the invention should be subject to the scope defined
by the claims. For those of ordinary skill in the art, multiple improvements and
modifications can be made without departing from the spirit and scope of the present
invention, and these improvements and modifications should also be regarded as falling
within the scope of the invention.
Claims (8)
1. A corrosion-resistant and aging-resistant color-coated steel plate coating, comprising
component A and component B, wherein the mass ratio of the component A to the component
B is 100:(1.
4-1.8);
the component A comprises the following raw materials in parts by weight:
42-52 parts of unsaturated polyester resin,
17-23 parts of polyester triacrylate,
5-8 parts of tripropylene glycol diacrylate,
25-32 parts of phenolic epoxy resin,
14-18 parts of polyaniline modified epoxy resin,
6.5-9 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane,
4-6 parts of vinyl ester glass-flake cement,
2.4-2.7 parts of a filler,
3.5-5.5 parts of an antioxidant,
3-5 parts of an anti-ultraviolet agent, and
90-150 parts of a solvent;
the component B comprises the following raw materials in parts by weight: 30-37 parts
of dicyandiamide, 12-16 parts of polyamide, 45-55 parts of dibenzoyl peroxide, and 15-20
parts of cyclohexanone peroxide.
2. The corrosion-resistant and aging-resistant color-coated steel plate coating according
to Claim 1, wherein the mass ratio of the component A to the component B is 100:1.6;
the component A comprises the following raw materials in parts by weight:
48 parts of unsaturated polyester resin,
20 parts of polyester triacrylate,
6.5 parts of tripropylene glycol diacrylate,
28.5 parts of phenolic epoxy resin,
16 parts of polyaniline modified epoxy resin,
7.75 parts of a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane,
5 parts of vinyl ester glass-flake cement,
2.55 parts of a filler,
4.5 parts of an antioxidant,
4 parts of an anti-ultraviolet agent, and
130 parts of a solvent;
the component B comprises the following raw materials in parts by weight: 33 parts of
dicyandiamide, 14 parts of polyamide, 50 parts of dibenzoyl peroxide, and 18 parts of
cyclohexanone peroxide.
3. The corrosion-resistant and aging-resistant color-coated steel plate coating according
to Claim 1, wherein the mass ratio of the 3-trimethylsilyl anisole to the dimethyl ketoxime
trimethylsilane is 1:(1.6-1.85).
4. The corrosion-resistant and aging-resistant color-coated steel plate coating according
to Claim 1, wherein the filler is nitrogen-doped graphene.
5. The corrosion-resistant and aging-resistant color-coated steel plate coating according
to Claim 1, wherein the solvent is at least one of ethanol, butyl acetate, dibutyl ester, and
methyl ethyl ketone.
6. A preparation method of the corrosion-resistant and aging-resistant color-coated steel plate coating according to any of Claims 1-5, comprising: weighing the following materials in parts by weight: unsaturated polyester resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline modified epoxy resin, a mixture of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane, vinyl ester glass-flake cement, a filler, an antioxidant, an anti-ultraviolet agent, a solvent, dicyandiamide, polyamide, dibenzoyl peroxide, and cyclohexanone peroxide; preparing component A: firstly adding unsaturated polyester resin, polyester triacrylate, tripropylene glycol diacrylate, novolac epoxy resin, polyaniline modified epoxy resin, and the mixture of 3-trimethylsilyl anisole and dimethyl ketoxime trimethylsilane into the solvent, and stirring at 500-800r/min for 30-40min; then adding the vinyl ester glass-flake cement, the filler, the antioxidant and the anti-ultraviolet agent, and carrying out shearing dispersion at 1500-1800r/min for 20-30min, thus obtaining the component A; preparing component B: well mixing dicyandiamide, polyamide, dibenzoyl peroxide, and cyclohexanone peroxide to obtain component B; and mixing the component A and the component B according to the mass ratio of 100:(1.4
1.8) for instant use.
7. A color-coated steel plate containing the corrosion-resistant and aging-resistant color
coated steel plate coating according to any of Claims 1-5, comprising a color-coated steel
plate body and a corrosion-resistant and aging-resistant paintcoat, wherein the corrosion
resistant and aging-resistant paintcoat is arranged on the surface of the color-coated steel
plate body, and the corrosion-resistant and aging-resistant paintcoat is made of the corrosion
resistant and aging-resistant color-coated steel plate coating.
8. A preparation method of the color-coated steel plate containing the corrosion-resistant
and aging-resistant color-coated steel plate coating according to Claim 7, comprising:
uniformly coating the corrosion-resistant and aging-resistant color-coated steel plate coating
on the surface of the color-coated steel plate body, and drying, thus obtaining the color
coated steel plate containing the corrosion-resistant and aging-resistant color-coated steel
plate coating.
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| AU2021202213A AU2021202213B1 (en) | 2021-03-30 | 2021-03-30 | Corrosion-resistant and aging-resistant color-coated steel plate coating, color-coated steel plate containing same and their preparation methods |
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| Application Number | Priority Date | Filing Date | Title |
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| AU2021202213A AU2021202213B1 (en) | 2021-03-30 | 2021-03-30 | Corrosion-resistant and aging-resistant color-coated steel plate coating, color-coated steel plate containing same and their preparation methods |
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| AU2021202213B1 true AU2021202213B1 (en) | 2022-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115433504A (en) * | 2022-11-09 | 2022-12-06 | 北汽利戴工业技术服务(北京)有限公司 | Stainless steel surface anti-corrosion treating agent and treating method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443503A (en) * | 1979-12-19 | 1984-04-17 | Dai Nippon Toryo Co., Ltd. | Anti-corrosive coating composition and process for formation of anti-corrosive coatings |
-
2021
- 2021-03-30 AU AU2021202213A patent/AU2021202213B1/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443503A (en) * | 1979-12-19 | 1984-04-17 | Dai Nippon Toryo Co., Ltd. | Anti-corrosive coating composition and process for formation of anti-corrosive coatings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115433504A (en) * | 2022-11-09 | 2022-12-06 | 北汽利戴工业技术服务(北京)有限公司 | Stainless steel surface anti-corrosion treating agent and treating method |
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