AU2021104183A4 - High-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating, aluminium-magnesium-manganese plate containing same and their preparation methods - Google Patents
High-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating, aluminium-magnesium-manganese 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
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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
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4434—Polyepoxides characterised by the nature of the epoxy binder
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Disclosed are a high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, an aluminium-magnesium-manganese
plate containing the coating, and their preparation methods. The coating comprises
component A and component B, wherein the mass ratio of the component A to the
component B is 100:(1.6-2.2); the component A comprises the following raw materials in
parts by weight: 40-50 parts of epoxy resin, 32-37 parts of polyaniline modified epoxy
resin, 15-18 parts of phenolic epoxy resin, 5-6.5 parts of
1,1-dimethylsilinane-3-carboxylic acid, 4.5-6 parts of tetrahydropyran-4-ylzinc bromide,
2.5-3.5 parts of colloidal flake graphite powder, 3-4 parts of boron nitride nanoplate, 7-10
parts of a heat insulation filler, and 55-100 parts of a solvent. The paintcoat made of the
coating has excellent salt spray resistance and excellent corrosion resistance; it has low
thermal conductivity and good thermal insulation performance; it has high hardness and
good wear resistance; it has strong adhesion with the aluminium-magnesium-manganese
plate body.
19
Description
[0001] The present invention relates to the technical field of coatings, in particular
to a high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, an aluminium-magnesium-manganese plate containing the same and their
preparation methods.
[0002] Aluminum-magnesium-manganese plates are cost-effective material for
roofs and walls. Aluminum alloy has been widely used in the construction industry, and
has played an important role in the development of modem buildings in the direction of
comfort, lightness, durability, economy and environmental protection.
[0003] During use, aluminium-magnesium-manganese plates are often exposed to
the scorching sun. High temperature causes paint and other adhesion layers of the
aluminium-magnesium-manganese plates to crack and fall off, and rain and other
corrosive substances corrode the surface of the aluminium-magnesium-manganese plates,
resulting in rust on the surface of the aluminium-magnesium-manganese plate.
Aluminium-magnesium-manganese plates are unable to work effectively as a result of the
decrease of its strength.
[0004] 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 and polyurethane resin 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.
[0005] However, the aluminium-magnesium-manganese plate coatings currently
used still have the following problems:
[0006] The paintcoats made of the aluminium-magnesium-manganese plate
coatings currently used have poor corrosion resistance, and are prone to rusting, blistering
and falling off;
[0007] The paintcoats made of the aluminium-magnesium-manganese plate
coatings currently used have poor heat insulation;
[0008] The paintcoats made of the aluminium-magnesium-manganese plate
coatings currently used have low hardness and poor wear resistance, and their overall
performance is poor.
[0009] Based on the above situation, the objective of the invention is to provide a
high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, an aluminium-magnesium-manganese plate containing the coating, and their
preparation methods, which can effectively solve the above problems.
[0010] In order to solve the above technical problems, the invention further adopts
the following technical solution:
[0011] A high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, comprising component A and
component B, wherein the mass ratio of the component A to the component B is
100:(1.6-2.2);
[0012] the component A comprises the following raw materials in parts by weight:
[0013] 40-50 parts of epoxy resin,
[0014] 32-37 parts of polyaniline modified epoxy resin,
[0015] 15-18 parts of phenolic epoxy resin,
[0016] 5-6.5 parts of 1,1-dimethylsilinane-3-carboxylic acid,
[0017] 4.5-6 parts of tetrahydropyran-4-ylzinc bromide,
[0018] 2.5-3.5 parts of colloidal flake graphite powder,
[0019] 3-4 parts of boron nitride nanoplate,
[0020] 7-10 parts of a heat insulation filler, and
[0021] 55-100 parts of a solvent;
[0022] the component B comprises the following raw materials in parts by weight:
-56 parts of phthalic anhydride, 24-28 parts of dicyandiamide, and 8-10 parts of
dimethylimidazole.
[0023] Preferably, the component A comprises the following raw materials in parts
by weight:
[0024] 45 parts of epoxy resin,
[0025] 34.5 parts of polyaniline modified epoxy resin,
[0026] 16.5 parts of phenolic epoxy resin,
[0027] 5.8 parts of 1,1-dimethylsilinane-3-carboxylic acid,
[0028] 5.3 parts of tetrahydropyran-4-ylzinc bromide,
[0029] 3 parts of colloidal flake graphite powder,
[0030] 3.5 parts of boron nitride nanoplate,
[0031] 8.5 parts of a heat insulation filler, and
[0032] 78 parts of a solvent;
[0033] the component B comprises the following raw materials in parts by weight:
53 parts of phthalic anhydride, 26 parts of dicyandiamide, and 9 parts of
dimethylimidazole.
[0034] Preferably, the granularity of the colloidal flake graphite powder is
10000-12000 meshes.
[0035] Preferably, the heat insulation filler is a mixture of mesoporous silica
nanosphere and nano aluminum oxide.
[0036] Preferably, the mass ratio of the mesoporous silica nanosphere to the nano
aluminum oxide is 1:(0.44-0.52).
[0037] Preferably, the solvent is at least one of acetone, ethyl acetate, and butyl
acetate.
[0038] Preferably, the solvent is a mixture of acetone and ethyl acetate which are
in a mass ratio of 1:(0.6-0.8).
[0039] The invention also provides a preparation method of the
high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, comprising:
[0040] weighing the following materials in parts by weight: epoxy resin,
polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic
acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride
nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and
dimethylimidazole;
[0041] preparing component A: firstly adding epoxy resin, polyaniline modified
epoxy resin, phenolic epoxy resin, and tetrahydropyran-4-ylzinc bromide into the solvent,
and stirring at 600-1OOOr/min for 40-50min; then adding
1,1-dimethylsilinane-3-carboxylic acid, colloidal flake graphite powder, boron nitride
nanoplate, and the heat insulation filler, and carrying out shearing dispersion at
2000-2500r/min for 10-15min, thus obtaining the component A;
[0042] preparing component B: well mixing phthalic anhydride, dicyandiamide,
and dimethylimidazole to obtain component B; and
[0043] mixing the component A and the component B for instant use.
[0044] The invention further provides an aluminium-magnesium-manganese plate
containing the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, comprising an
aluminium-magnesium-manganese plate body and a high-corrosion-resistant and
heat-insulating paintcoat, wherein the high-corrosion-resistant and heat-insulating
paintcoat is arranged on the surface of the aluminium-magnesium-manganese plate body,
and the high-corrosion-resistant and heat-insulating paintcoat is made of the
high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating.
[0045] The invention further provides a preparation method of the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating, comprising: uniformly
coating the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating on the surface of the
aluminium-magnesium-manganese plate body, and drying, thus obtaining the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganeseplate coating.
[0046] Compared with the prior art, the present invention has the following
advantages and beneficial effects:
[0047] According to the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating of the invention, by selecting raw
materials carefully and optimizing the content of each raw material, epoxy resin,
polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic
acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride
nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and
dimethylimidazole 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 of the coating has excellent salt spray resistance and excellent corrosion resistance, and can be soaked for more than 4765 hours without rust, blistering, or falling off; it has low thermal conductivity and good thermal insulation performance; it has high hardness and good wear resistance; it has strong adhesion with the aluminium-magnesium-manganeseplatebody.
[0048] The preparation method of the invention has simple process and simple
operation, and saves manpower and equipment costs.
[0049] 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.
[0050] 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.
[0051] Example 1:
[0052] Provided is a high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, comprising component A and
component B, wherein the mass ratio of the component A to the component B is 100:1.6;
[0053] the component A comprises the following raw materials in parts by weight:
[0054] 40 parts of epoxy resin,
[0055] 32 parts of polyaniline modified epoxy resin,
[0056] 15 parts of phenolic epoxy resin,
[0057] 5 parts of 1,1-dimethylsilinane-3-carboxylic acid,
[0058] 4.5 parts of tetrahydropyran-4-ylzinc bromide,
[0059] 2.5 parts of colloidal flake graphite powder,
[0060] 3 parts of boron nitride nanoplate,
[0061] 7 parts of a heat insulation filler, and
[0062] 55 parts of a solvent;
[0063] the component B comprises the following raw materials in parts by weight:
parts of phthalic anhydride, 24 parts of dicyandiamide, and 8 parts of
dimethylimidazole.
[0064] In this example, the granularity of the colloidal flake graphite powder is
10000 meshes.
[0065] In this example, the heat insulation filler is a mixture of mesoporous silica
nanosphere and nano aluminum oxide.
[0066] In this example, the mass ratio of the mesoporous silica nanosphere to the
nano aluminum oxide is 1:0.44.
[0067] In this example, the solvent is a mixture of acetone and ethyl acetate which
are in a mass ratio of 1:0.6.
[0068] Further provided is a preparation method of the high-corrosion-resistant
and heat-insulating aluminium-magnesium-manganese plate coating, comprising:
[0069] weighing the following materials in parts by weight: epoxy resin,
polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic
acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride
nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and
dimethylimidazole;
[0070] preparing component A: firstly adding epoxy resin, polyaniline modified
epoxy resin, phenolic epoxy resin, and tetrahydropyran-4-ylzinc bromide into the solvent, and stirring at 600r/min for 50min; then adding 1,1-dimethylsilinane-3-carboxylic acid, colloidal flake graphite powder, boron nitride nanoplate, and the heat insulation filler, and carrying out shearing dispersion at 2000r/min for 15min, thus obtaining the component A;
[0071] preparing component B: well mixing phthalic anhydride, dicyandiamide,
and dimethylimidazole to obtain component B; and
[0072] mixing the component A and the component B for instant use.
[0073] Further provided is an aluminium-magnesium-manganese plate containing
the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, comprising an aluminium-magnesium-manganese plate body and a
high-corrosion-resistant and heat-insulating paintcoat, wherein the high-corrosion-resistant
and heat-insulating paintcoat is arranged on the surface of the
aluminium-magnesium-manganese plate body, and the high-corrosion-resistant and
heat-insulating paintcoat is made of the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganeseplatecoating.
[0074] Further provided is a preparation method of the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating, comprising: uniformly
coating the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating on the surface of the
aluminium-magnesium-manganese plate body, and drying, thus obtaining the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating.
[0075] Example 2:
[0076] Provided is a high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, comprising component A and
component B, wherein the mass ratio of the component A to the component B is 100:2.2;
[0077] the component A comprises the following raw materials in parts by weight:
[0078] 50 parts of epoxy resin,
[0079] 37 parts of polyaniline modified epoxy resin,
[0080] 18 parts of phenolic epoxy resin,
[0081] 6.5 parts of 1,1-dimethylsilinane-3-carboxylic acid,
[0082] 6 parts of tetrahydropyran-4-ylzinc bromide,
[0083] 3.5 parts of colloidal flake graphite powder,
[0084] 4 parts of boron nitride nanoplate,
[0085] 10 parts of a heat insulation filler, and
[0086] 100 parts of a solvent;
[0087] the component B comprises the following raw materials in parts by weight:
56 parts of phthalic anhydride, 28 parts of dicyandiamide, and 10 parts of
dimethylimidazole.
[0088] In this example, the granularity of the colloidal flake graphite powder is
12000 meshes.
[0089] In this example, the heat insulation filler is a mixture of mesoporous silica
nanosphere and nano aluminum oxide.
[0090] In this example, the mass ratio of the mesoporous silica nanosphere to the
nano aluminum oxide is 1:0.52.
[0091] In this example, the solvent is a mixture of acetone and ethyl acetate which
are in a mass ratio of 1:0.8.
[0092] Further provided is a preparation method of the high-corrosion-resistant
and heat-insulating aluminium-magnesium-manganese plate coating, comprising:
[0093] weighing the following materials in parts by weight: epoxy resin,
polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic
acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and dimethylimidazole;
[0094] preparing component A: firstly adding epoxy resin, polyaniline modified
epoxy resin, phenolic epoxy resin, and tetrahydropyran-4-ylzinc bromide into the solvent,
and stirring at 1000r/min for 40min; then adding 1,1-dimethylsilinane-3-carboxylic acid,
colloidal flake graphite powder, boron nitride nanoplate, and the heat insulation filler, and
carrying out shearing dispersion at 2500r/min for 10mmin, thus obtaining the component A;
[0095] preparing component B: well mixing phthalic anhydride, dicyandiamide,
and dimethylimidazole to obtain component B; and
[0096] mixing the component A and the component B for instant use.
[0097] Further provided is an aluminium-magnesium-manganese plate containing
the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, comprising an aluminium-magnesium-manganese plate body and a
high-corrosion-resistant and heat-insulating paintcoat, wherein the high-corrosion-resistant
and heat-insulating paintcoat is arranged on the surface of the
aluminium-magnesium-manganese plate body, and the high-corrosion-resistant and
heat-insulating paintcoat is made of the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganeseplatecoating.
[0098] Further provided is a preparation method of the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating, comprising: uniformly
coating the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating on the surface of the
aluminium-magnesium-manganese plate body, and drying, thus obtaining the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulatingaluminium-magnesium-manganeseplatecoating.
[0099] Example 3:
[00100] Provided is a high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating, comprising component A and
component B, wherein the mass ratio of the component A to the component B is 100:1.9;
[00101] the component A comprises the following raw materials in parts by weight:
[00102] 45 parts of epoxy resin,
[00103] 34.5 parts of polyaniline modified epoxy resin,
[00104] 16.5 parts of phenolic epoxy resin,
[00105] 5.8 parts of 1,1-dimethylsilinane-3-carboxylic acid,
[00106] 5.3 parts of tetrahydropyran-4-ylzinc bromide,
[00107] 3 parts of colloidal flake graphite powder,
[00108] 3.5 parts of boron nitride nanoplate,
[00109] 8.5 parts of a heat insulation filler, and
[00110] 78 parts of a solvent;
[00111] the component B comprises the following raw materials in parts by weight:
53 parts of phthalic anhydride, 26 parts of dicyandiamide, and 9 parts of
dimethylimidazole.
[00112] In this example, the granularity of the colloidal flake graphite powder is
11000 meshes.
[00113] In this example, the heat insulation filler is a mixture of mesoporous silica
nanosphere and nano aluminum oxide.
[00114] In this example, the mass ratio of the mesoporous silica nanosphere to the
nano aluminum oxide is 1:0.46.
[00115] In this example, the solvent is a mixture of acetone and ethyl acetate which
are in a mass ratio of 1:0.7.
[00116] Further provided is a preparation method of the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating, comprising:
[00117] weighing the following materials in parts by weight: epoxy resin,
polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic
acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride
nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and
dimethylimidazole;
[00118] preparing component A: firstly adding epoxy resin, polyaniline modified
epoxy resin, phenolic epoxy resin, and tetrahydropyran-4-ylzinc bromide into the solvent,
and stirring at 800r/min for 45min; then adding 1,1-dimethylsilinane-3-carboxylic acid,
colloidal flake graphite powder, boron nitride nanoplate, and the heat insulation filler, and
carrying out shearing dispersion at 2300r/min for 12min, thus obtaining the component A;
[00119] preparing component B: well mixing phthalic anhydride, dicyandiamide,
and dimethylimidazole to obtain component B; and
[00120] mixing the component A and the component B for instant use.
[00121] Further provided is an aluminium-magnesium-manganese plate containing
the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating, comprising an aluminium-magnesium-manganese plate body and a
high-corrosion-resistant and heat-insulating paintcoat, wherein the high-corrosion-resistant
and heat-insulating paintcoat is arranged on the surface of the
aluminium-magnesium-manganese plate body, and the high-corrosion-resistant and
heat-insulating paintcoat is made of the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganeseplatecoating.
[00122] Further provided is a preparation method of the
aluminium-magnesium-manganese plate containing the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating, comprising: uniformly
coating the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating on the surface of the aluminium-magnesium-manganese plate body, and drying, thus obtaining the aluminium-magnesium-manganese plate containing the high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating.
[00123] Comparative Example 1
[00124] Comparative Example 1 is identical to Example 3 except that polyaniline
modified epoxy resin is replaced with epoxy resin.
[00125] Comparative Example 2
[00126] Comparative Example 2 is identical to Example 3 except that phenolic
epoxy resin is replaced with epoxy resin.
[00127] Comparative Example 3
[00128] Comparative Example 3 is identical to Example 3 except that
1,1-dimethylsilinane-3-carboxylic acid is not used in Comparative Example 3.
[00129] Comparative Example 4
[00130] Comparative Example 4 is identical to Example 3 except that
tetrahydropyran-4-ylzinc bromide is not used in Comparative Example 4.
[00131] Comparative Example 5
[00132] Comparative Example 5 is identical to Example 3 except that colloidal
flake graphite powder is not used in Comparative Example 5.
[00133] Comparative Example 6
[00134] Comparative Example 6 is identical to Example 3 except that boron nitride
nanoplate is not used in Comparative Example 6.
[00135] Comparative Example 7
[00136] Comparative Example 7 is identical to Example 3 except that the mixture
of mesoporous silica nanosphere and nano aluminum oxide is replaced with mesoporous
silica nanosphere.
[00137] Comparative Example 8
[00138] Comparative Example 8 is identical to Example 3 except that the mixture
of mesoporous silica nanosphere and nano aluminum oxide is replaced with nano
aluminum oxide.
[00139] The performance tests are performed below on the high-corrosion-resistant
and heat-insulating aluminium-magnesium-manganese plate coatings obtained in
Examples 1-3 of the present invention and in Comparative Examples 1-8, and the test
results are shown in Table 1.
[00140] During the tests, the same specifications of the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coatings obtained in Examples
1-3 of the present invention and the aluminium-magnesium-manganese plate coating
obtained in Comparative Examples 1-8 were selected, and the dry film thickness of the
coatings was 20[m. Resistance to salt spray: the test was carried out according to ASTM
B117, and the time for the coating with slight color change, but without blistering, rust,
cracking, and falling off was obtained. Thermal conductivity: the test was carried out
according to ISO 8302:1991. Pencil hardness: the test was carried out according to ISO
15184:1998.
[00141] Table 1
Hardness Thermal conductivity Resistance to salt spray (HB) (W/(m-K)) (hour)
Example 1 5 0.07 4765 Example 2 5 0.06 4773 Example 3 5 0.05 4789 Comparative 4 0.05 4024 Example 1 Comparative 4 0.05 4 0.054083 Example 2 Comparative 3 0.08 3836
Example 3 Comparative 5 0.07 3182 Example 4 Comparative 5 0.04 3345 Example 5 Comparative 0.03
Example 6 Comparative 0.28 4474
Example 8
[00142] It can be seen from the above table that the high-corrosion-resistant and
heat-insulating aluminium-magnesium-manganese plate coating of the invention has the
following advantages: the paintcoat made of the coating has excellent salt spray resistance
and excellent corrosion resistance, and can be soaked for more than 4765 hours without
rust, blistering, or falling off; it has low thermal conductivity and good thermal insulation
performance; it has high hardness and good wear resistance.
[00143] 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 (1)
1. A high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese
plate coating, comprising component A and component B, wherein the mass ratio of the
component A to the component B is 100:(1.6-2.2);
the component A comprises the following raw materials in parts by weight:
40-50 parts of epoxy resin,
32-37 parts of polyaniline modified epoxy resin,
15-18 parts of phenolic epoxy resin,
5-6.5 parts of 1,1-dimethylsilinane-3-carboxylic acid,
4.5-6 parts of tetrahydropyran-4-ylzinc bromide,
2.5-3.5 parts of colloidal flake graphite powder,
3-4 parts of boron nitride nanoplate,
7-10 parts of a heat insulation filler, and
55-100 parts of a solvent;
the component B comprises the following raw materials in parts by weight: 50-56
parts of phthalic anhydride, 24-28 parts of dicyandiamide, and 8-10 parts of
dimethylimidazole.
2. The high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese
plate coating according to Claim 1, wherein the granularity of the colloidal flake graphite
powder is 10000-12000 meshes; the heat insulation filler is a mixture of mesoporous silica
nanosphere and nano aluminum oxide; the mass ratio of the mesoporous silica nanosphere
to the nano aluminum oxide is 1:(0.44-0.52); the solvent is at least one of acetone, ethyl
acetate, and butyl acetate.
3. A preparation method of the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating according to Claim 1 or 2, comprising:
weighing the following materials in parts by weight: epoxy resin, polyaniline modified epoxy resin, phenolic epoxy resin, 1,1-dimethylsilinane-3-carboxylic acid, tetrahydropyran-4-ylzinc bromide, colloidal flake graphite powder, boron nitride nanoplate, a heat insulation filler, a solvent, phthalic anhydride, dicyandiamide, and dimethylimidazole; preparing component A: firstly adding epoxy resin, polyaniline modified epoxy resin, phenolic epoxy resin, and tetrahydropyran-4-ylzinc bromide into the solvent, and stirring at 600-10OOr/min for 40-50min; then adding 1,1-dimethylsilinane-3-carboxylic acid, colloidal flake graphite powder, boron nitride nanoplate, and the heat insulation filler, and carrying out shearing dispersion at 2000-2500r/min for 10-15min, thus obtaining the component A; preparing component B: well mixing phthalic anhydride, dicyandiamide, and dimethylimidazole to obtain component B; and mixing the component A and the component B for instant use.
4. An aluminium-magnesium-manganese plate containing the high-corrosion-resistant
and heat-insulating aluminium-magnesium-manganese plate coating according to Claim 1
or 2, comprising an aluminium-magnesium-manganese plate body and a
high-corrosion-resistant and heat-insulating paintcoat, wherein the high-corrosion-resistant
and heat-insulating paintcoat is arranged on the surface of the
aluminium-magnesium-manganese plate body, and the high-corrosion-resistant and
heat-insulating paintcoat is made of the high-corrosion-resistant and heat-insulating
aluminium-magnesium-manganese plate coating.
5. A preparation method of the aluminium-magnesium-manganese plate containing the
high-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate
coating according to Claim 4, comprising: uniformly coating the high-corrosion-resistant
and heat-insulating aluminium-magnesium-manganese plate coating on the surface of the
aluminium-magnesium-manganese plate body, and drying, thus obtaining the aluminium-magnesium-manganese plate containing the high-corrosion-resistant and heat-insulatingaluminium-magnesium-manganeseplatecoating.
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| AU2021104183A AU2021104183A4 (en) | 2021-07-15 | 2021-07-15 | High-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating, aluminium-magnesium-manganese plate containing same and their preparation methods |
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| AU2021104183A AU2021104183A4 (en) | 2021-07-15 | 2021-07-15 | High-corrosion-resistant and heat-insulating aluminium-magnesium-manganese plate coating, aluminium-magnesium-manganese plate containing same and their preparation methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292563A (en) * | 2021-12-08 | 2022-04-08 | 建湖金拓机械制造有限公司 | Novel wear-resistant coating for hydraulic end valve box of fracturing truck |
| CN117050460A (en) * | 2023-09-13 | 2023-11-14 | 江苏耀鸿电子有限公司 | BN micropowder reinforced phenolic resin for copper-clad plate and preparation method thereof |
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2021
- 2021-07-15 AU AU2021104183A patent/AU2021104183A4/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292563A (en) * | 2021-12-08 | 2022-04-08 | 建湖金拓机械制造有限公司 | Novel wear-resistant coating for hydraulic end valve box of fracturing truck |
| CN117050460A (en) * | 2023-09-13 | 2023-11-14 | 江苏耀鸿电子有限公司 | BN micropowder reinforced phenolic resin for copper-clad plate and preparation method thereof |
| CN117050460B (en) * | 2023-09-13 | 2024-01-23 | 江苏耀鸿电子有限公司 | BN micropowder reinforced phenolic resin for copper-clad plate and preparation method thereof |
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