Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
Aqueous nano-imitation porcelain coating and preparation method thereof
Technical field
The invention relates to the technical field of coatings, in particular to an
aqueous nano -imitation
porcelain coating and a preparation method thereof.
Background technique
Imitation porcelain coatings can be applied in a wide range of applications,
such as cement
surface, metal surface, plastic surface, wood and other solid surfaces for
painting and spraying. It can
be used for interior walls of public buildings, interior walls of houses,
kitchens, bathrooms and
bathrooms. Anti-corrosion for exterior decoration of electrical appliances,
machinery and furniture.
The melamine coatings include water-based melamine coatings and solvent-based
enamel
coatings. Solvent-based architectural coatings are toxic solvents due to their
curing process, which are
not environmentally friendly and are limited in coatings. The aging resistance
and adhesion of washed
enamel coatings There are always more problems in the properties of smooth
coating, stain resistance,
abrasion resistance, acid and alkali resistance, water resistance, etc., which
limits their widespread
use.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, the technical
problem to be solved by
the present invention is to provide an aqueous nano-imitation ceramic coating
and a preparation
method thereof, by adding a nano-silica filler and dispersing in a nanometer
size in a coating mixing
system, The silica nanoparticles show that some large particles do not have
special properties, and
have excellent water resistance, alkali resistance, wear resistance, aging
resistance, and strong
adhesion.
In order to achieve the above object, the present invention provides an
aqueous nano-imitation
ceramic coating, the raw material of which is composed of the following
components by weight:
0.1-20% resin, 5-30% nano silica sol, 10-20% Alcohol ether solvent, 10-30%
auxiliary, 40-70%
¨1¨
CA 3024231 2018-11-15
deionized water.
In the above aqueous nano-enamel coating, the resin is an acrylic polymer
resin.
The above-mentioned aqueous nano-imitation ceramic coating: the nano silica
sol is a self-made
in-situ synthesized silica sol.
In the above aqueous nano-enamel coating, the alcohol ether solvent is
ethylene glycol methyl
ether, ethylene glycol butyl ether, diethylene glycol methyl ether, diethylene
glycol diethyl ether,
ethylene glycol phenyl ether, ethylene glycol. One or more of butyl ether,
propylene glycol butyl ether,
propylene glycol methyl ether acetate, ethyl acetate, butyl acetate
In the above aqueous nano-enamel coating, the auxiliary agent includes any one
of a dispersing
agent, a film forming auxiliary agent and an antifoaming agent.
In the above aqueous nano-imitation paint, the dispersant model is any one of
BYK2090,
BYK2091, and BYK2096.
In the above aqueous nano-enamel coating, the antifoaming agent is any one of
glycerol,
propylene glycol, terpineol, and isopropanol.
In the above aqueous nano-enamel coating, the film-forming auxiliary agent is
alcohol ester-12.
A method for preparing a waterborne nano-imitation ceramic coating comprises
the following
steps:
Step 1. First, prepare a nano silica sol: ethyl orthosilicate, ethanol,
ethylene glycol ether,
isopropanol, deionized water, hydrochloric acid in a molar ratio TEOS:
ethanol: ethylene glycol ether:
isopropanol: H2O: hydrochloric acid = 1:1.25:1.6:0.98:1.5:7.3*10-4 ratio to
prepare a mixed solution;
Step 2, then, at a normal temperature, the ratio of the resin, the alcohol
ether solvent, the
auxiliary agent, and the deionized water are stirred at a rate of 500 r/min
with a high speed dispersing
machine for 10 min;
Step 3. Then, the proportioned nano silica sol is added and stirred for 1-3 h.
The preparation method of the above aqueous nano-imitation ceramic coating,
after the step 1 is
formulated into a mixed solution: 0.11M ammonia water, which is included in
the total weight of the
mixed solution, is stirred at 60 C for 1 hour, and then stored at room
temperature; or stirred at 60 C
for 1 hour. After storage at room temperature; or at 60 C for 1 h, then add
0.1% of aqueous ammonia
¨2¨
CA 3024231 2018-11-15
solution of 0.1% by weight of the mixed solution, and continue to stir at 60
C for 1 hand then store
at room temperature.
The beneficial effects of the invention are:
The water-based nano-imitation porcelain coating prepared by the invention has
strong adhesion
ability, long service life, no problem of color drop and discoloration, and
excellent antibacterial and
aging resistance, high temperature resistant flame retardant, dirt self-
cleaning and high hardness. It is
wear-resistant and the coating is non-toxic, harmless, non-polluting, non-
radioactive and highly
resistant to pollution. It can be widely used in construction and other
industries.
Detailed descriptions
The invention provides an aqueous nano-imitation porcelain coating, comprising
a resin, a
hydrophilic nano silica, an alcohol ether solvent, an auxiliary agent, and
deionized water. In the
aqueous nano-enamel coating of the present invention, the content of each
component is preferably:
0.1-20% resin; 5-30% nano silica sol, 10-20% alcohol ether solvent, 10-30%
help Agent, and 40-70%
deionized water.
Among them, the resin is an acrylic polymer resin; the nano silica is a self-
made silica sol
synthesized in situ, and the preparation method thereof is described below;
the alcohol ether solvent is
ethylene glycol methyl ether, ethylene glycol butyl ether, and diethyl ether.
One or more of glycol
ether, diethylene glycol ether, ethylene glycol phenyl ether, ethylene glycol
butyl ether, propylene
glycol butyl ether, propylene glycol methyl ether acetate, ethyl acetate,
butyl acetate; Dispersing agent,
film forming aid, antifoaming agent, etc., wherein the dispersing agent is
BYK2090, BYK2091 or
BYK2096, such dispersing agent has better dispersing effect on pigments and
nanoparticles;
defoaming agent is glycerin, propylene glycol, Terpineol, isopropanol, etc.;
the film-forming aid is
alcohol ester-12 (2, 2, 4-trimethy1-1,3 pentanediol monoisobutyric acid value)
and the like.
Embodiment 1 of the present invention:
First, a nanosilica sol was prepared: ethyl orthosilicate, ethanol, ethylene
glycol ethyl ether,
isopropanol, deionized water in a molar ratio of TEOS: ethanol: ethylene
glycol ether: isopropanol:
H20 = 1: A ratio of 1.25:1.6:0.98:1.5 was mixed to prepare a mixed solution,
and 0.11 M of ammonia
¨3¨
CA 3024231 2018-11-15
water, which was included in the total weight of the above system, was stirred
at 60 C for 1 hour,
and then stored at room temperature.
Then, 150 g of an acrylic resin, 45 g of propylene glycol methyl ether
acetate, 200 g of water and
20 g of a dispersing agent (BYK 2090), and 30 g of an antifoaming agent
(glycerol) at a rate of 500
r/min at a normal temperature were used. ) Stirring for 10 min.
Then, 120 g of the prepared nano silica sol was added, and the mixture was
stirred at 2000 r/min
for 1 hour to obtain a finished product.
Embodiment 2 of the present invention:
First, prepare a nano silica sol: ethyl orthosilicate, ethanol, ethylene
glycol ethyl ether,
isopropanol, deionized water, hydrochloric acid in a molar ratio of TEOS:
ethanol: ethylene glycol
ether: isopropanol: H ( TF49)0: Hydrochloric acid = 1:1.25:1.6:0.98:1.5:7.3*10
-4. The mixed solution
was prepared and stirred at 60 C for 1 hour and then stored at room
temperature.
Then, 180 g of an acrylic resin, 60 g of ethylene glycol phenyl ether, 280 g
of deionized water
and 10 g of a dispersing agent (BYK 2096) and 10 g of a film-forming auxiliary
agent at a rate of 500
r/min at a normal temperature were used. The alcohol ester-12) was stirred for
10 min.
Then, 150 g of the above nano silica sol was added and stirred at 2000 r/min
for 1 hour; finally,
20 g of an antifoaming agent (terpineol) was added and stirred at 2500 r/min
for 2 hours to obtain a
finished product.
Embodiment 3 of the present invention:
Firstly, nano silica sol is prepared: using acid-base two-step catalysis
method, ethyl orthosilicate,
ethanol, ethylene glycol ethyl ether, isopropanol, deionized water,
hydrochloric acid, in molar ratio
TEOS: ethanol: ethylene glycol Ether: isopropanol: H 2 0 hydrochloric acid =
1: 1.25: 1.6: 0.98: 1.5:
7.3 * 10 -4 ratio to prepare a mixed solution, stirred at 60 C for 1 h, then
added the above solution
weight 0.1% of 0.11 M aqueous ammonia was further stirred at 60 C for 1 hour
and then stored at
room temperature.
Then, 200 g of an acrylic resin, 300 g of deionized water, and 20 g of a
dispersing agent (BYK
2091) and 20 g of an antifoaming agent (propylene glycol) were stirred at a
rate of 500 r/min at a
normal temperature for 10 minutes. .
¨4¨
CA 3024231 2018-11-15
Then, 280 g of nano silica sol was added, and the mixture was stirred at 2000
r/min for 1 hour;
finally, it was stirred at 2500 r/min for 2 hours to obtain a finished
product.
The prepared aqueous nano-imitation porcelain coating of the invention has
strong adhesion
ability, long service life, no problem of color drop and discoloration, and
excellent antibacterial and
aging resistance, high temperature resistant flame retardant, dirt self-
cleaning and high Hard and
wear-resistant, and the coating is non-toxic, harmless, non-polluting, non-
radioactive, and highly
resistant to pollution, and can be widely used in construction and other
industries.
The preferred embodiments of the present invention have been described in
detail above. It will
be appreciated that many modifications and variations can be made in the
present invention without
departing from the scope of the invention. Therefore, any technical solution
that can be obtained by
a person skilled in the art based on the prior art based on the prior art by
logic analysis, reasoning or
limited experimentation should be within the scope of protection determined by
the claims.
¨5¨
CA 3024231 2018-11-15
Aqueous nano-imitation porcelain coating and preparation method thereof
Technical field
The invention relates to the technical field of coatings, in particular to an
aqueous nano -imitation
porcelain coating and a preparation method thereof.
Background technique
Imitation porcelain coatings can be applied in a wide range of applications,
such as cement
surface, metal surface, plastic surface, wood and other solid surfaces for
painting and spraying. It can
be used for interior walls of public buildings, interior walls of houses,
kitchens, bathrooms and
bathrooms. Anti-corrosion for exterior decoration of electrical appliances,
machinery and furniture.
The melamine coatings include water-based melamine coatings and solvent-based
enamel
coatings. Solvent-based architectural coatings are toxic solvents due to their
curing process, which are
not environmentally friendly and are limited in coatings. The aging resistance
and adhesion of washed
enamel coatings There are always more problems in the properties of smooth
coating, stain resistance,
abrasion resistance, acid and alkali resistance, water resistance, etc., which
limits their widespread
use.
Summary of the invention
In view of the above-mentioned drawbacks of the prior art, the technical
problem to be solved by
the present invention is to provide an aqueous nano-imitation ceramic coating
and a preparation
method thereof, by adding a nano-silica filler and dispersing in a nanometer
size in a coating mixing
system, The silica nanoparticles show that some large particles do not have
special properties, and
have excellent water resistance, alkali resistance, wear resistance, aging
resistance, and strong
adhesion.
In order to achieve the above object, the present invention provides an
aqueous nano -imitation
ceramic coating, the raw material of which is composed of the following
components by weight:
0.1-20% resin, 5-30% nano silica sol, 10-20% Alcohol ether solvent, 10-30%
auxiliary, 40-70%
¨1¨
CA 3024231 2018-11-15
deionized water.
In the above aqueous nano-enamel coating, the resin is an acrylic polymer
resin.
The above-mentioned aqueous nano-imitation ceramic coating: the nano silica
sol is a self-made
in-situ synthesized silica sol.
In the above aqueous nano-enamel coating, the alcohol ether solvent is
ethylene glycol methyl
ether, ethylene glycol butyl ether, diethylene glycol methyl ether, diethylene
glycol diethyl ether,
ethylene glycol phenyl ether, ethylene glycol. One or more of butyl ether,
propylene glycol butyl ether,
propylene glycol methyl ether acetate, ethyl acetate, butyl acetate
In the above aqueous nano-enamel coating, the auxiliary agent includes any one
of a dispersing
agent, a film forming auxiliary agent and an antifoaming agent.
In the above aqueous nano-imitation paint, the dispersant model is any one of
BYK2090,
BYK2091, and BYK2096.
In the above aqueous nano-enamel coating, the antifoaming agent is any one of
glycerol,
propylene glycol, terpineol, and isopropanol.
In the above aqueous nano-enamel coating, the film-forming auxiliary agent is
alcohol ester-12.
A method for preparing a waterborne nano-imitation ceramic coating comprises
the following
steps:
Step 1. First, prepare a nano silica sol: ethyl orthosilicate, ethanol,
ethylene glycol ether,
isopropanol, deionized water, hydrochloric acid in a molar ratio TEOS:
ethanol: ethylene glycol ether:
isopropanol: H20: hydrochloric acid = 1:1.25:1.6:0.98:1.5:7.3*10-4 ratio to
prepare a mixed solution;
Step 2, then, at a normal temperature, the ratio of the resin, the alcohol
ether solvent, the
auxiliary agent, and the deionized water are stirred at a rate of 500 r/min
with a high speed dispersing
machine for 10 min;
Step 3. Then, the proportioned nano silica sol is added and stirred for 1-3 h.
The preparation method of the above aqueous nano-imitation ceramic coating,
after the step 1 is
formulated into a mixed solution: 0.11M ammonia water, which is included in
the total weight of the
mixed solution, is stirred at 60 C for 1 hour, and then stored at room
temperature; or stirred at 60 C
for 1 hour. After storage at room temperature; or at 60 C for 1 h, then add
0.1% of aqueous ammonia
¨2¨
CA 3024231 2018-11-15
solution of 0.1% by weight of the mixed solution, and continue to stir at 60
C for 1 hand then store
at room temperature.
The beneficial effects of the invention are:
The water-based nano-imitation porcelain coating prepared by the invention has
strong adhesion
ability, long service life, no problem of color drop and discoloration, and
excellent antibacterial and
aging resistance, high temperature resistant flame retardant, dirt self-
cleaning and high hardness. It is
wear-resistant and the coating is non-toxic, harmless, non-polluting, non-
radioactive and highly
resistant to pollution. It can be widely used in construction and other
industries.
Detailed descriptions
The invention provides an aqueous nano-imitation porcelain coating, comprising
a resin, a
hydrophilic nano silica, an alcohol ether solvent, an auxiliary agent, and
deionized water. In the
aqueous nano-enamel coating of the present invention, the content of each
component is preferably:
0.1-20% resin; 5-30% nano silica sol, 10-20% alcohol ether solvent, 10-30%
help Agent, and 40-70%
deionized water.
Among them, the resin is an acrylic polymer resin; the nano silica is a self-
made silica sol
synthesized in situ, and the preparation method thereof is described below;
the alcohol ether solvent is
ethylene glycol methyl ether, ethylene glycol butyl ether, and diethyl ether.
One or more of glycol
ether, diethylene glycol ether, ethylene glycol phenyl ether, ethylene glycol
butyl ether, propylene
glycol butyl ether, propylene glycol methyl ether acetate, ethyl acetate,
butyl acetate; Dispersing agent,
film forming aid, antifoaming agent, etc., wherein the dispersing agent is
BYK2090, BYK2091 or
BYK2096, such dispersing agent has better dispersing effect on pigments and
nanoparticles;
defoaming agent is glycerin, propylene glycol, Terpineol, isopropanol, etc.;
the film-forming aid is
alcohol ester-12 (2, 2, 4-trimethy1-1,3 pentanediol monoisobutyric acid value)
and the like.
Embodiment 1 of the present invention:
First, a nanosilica sol was prepared: ethyl orthosilicate, ethanol, ethylene
glycol ethyl ether,
isopropanol, deionized water in a molar ratio of TEOS: ethanol: ethylene
glycol ether: isopropanol:
H20 = 1: A ratio of 1.25:1.6:0.98:1.5 was mixed to prepare a mixed solution,
and 0.11 M of ammonia
¨3¨
CA 3024231 2018-11-15
water, which was included in the total weight of the above system, was stirred
at 60 C for 1 hour,
and then stored at room temperature.
Then, 150 g of an acrylic resin, 45 g of propylene glycol methyl ether
acetate, 200 g of water and
20 g of a dispersing agent (BYK 2090), and 30 g of an antifoaming agent
(glycerol) at a rate of 500
r/min at a normal temperature were used. ) Stirring for 10 min.
Then, 120 g of the prepared nano silica sol was added, and the mixture was
stirred at 2000 r/min
for 1 hour to obtain a finished product.
Embodiment 2 of the present invention:
First, prepare a nano silica sol: ethyl orthosilicate, ethanol, ethylene
glycol ethyl ether,
isopropanol, deionized water, hydrochloric acid in a molar ratio of TEOS:
ethanol: ethylene glycol
ether: isopropanol: H ( TF49)0: Hydrochloric acid = 1:1.25:1.6:0.98:1.5:7.3*10
"4. The mixed solution
was prepared and stirred at 60 C for 1 hour and then stored at room
temperature.
Then, 180 g of an acrylic resin, 60 g of ethylene glycol phenyl ether, 280 g
of deionized water
and 10 g of a dispersing agent (BYK 2096) and 10 g of a film-forming auxiliary
agent at a rate of 500
r/min at a normal temperature were used. The alcohol ester-12) was stirred for
10 min.
Then, 150 g of the above nano silica sol was added and stirred at 2000 r/min
for 1 hour; finally,
20 g of an antifoaming agent (terpineol) was added and stirred at 2500 r/min
for 2 hours to obtain a
finished product.
Embodiment 3 of the present invention:
Firstly, nano silica sol is prepared: using acid-base two-step catalysis
method, ethyl orthosilicate,
ethanol, ethylene glycol ethyl ether, isopropanol, deionized water,
hydrochloric acid, in molar ratio
TEOS: ethanol: ethylene glycol Ether: isopropanol: H 2 0 hydrochloric acid =
1: 1.25: 1.6: 0.98: 1.5:
7.3 * 10 -4 ratio to prepare a mixed solution, stirred at 60 C for 1 h, then
added the above solution
weight 0.1% of 0.11 M aqueous ammonia was further stirred at 60 'C for 1 hour
and then stored at
room temperature.
Then, 200 g of an acrylic resin, 300 g of deionized water, and 20 g of a
dispersing agent (BYK
2091) and 20 g of an antifoaming agent (propylene glycol) were stirred at a
rate of 500 r/min at a
normal temperature for 10 minutes. .
¨4¨
CA 3024231 2018-11-15
Then, 280 g of nano silica sol was added, and the mixture was stirred at 2000
r/min for 1 hour;
finally, it was stirred at 2500 r/min for 2 hours to obtain a finished
product.
The prepared aqueous nano-imitation porcelain coating of the invention has
strong adhesion
ability, long service life, no problem of color drop and discoloration, and
excellent antibacterial and
aging resistance, high temperature resistant flame retardant, dirt self-
cleaning and high Hard and
wear-resistant, and the coating is non-toxic, harmless, non-polluting, non-
radioactive, and highly
resistant to pollution, and can be widely used in construction and other
industries.
The preferred embodiments of the present invention have been described in
detail above. It will
be appreciated that many modifications and variations can be made in the
present invention without
departing from the scope of the invention. Therefore, any technical solution
that can be obtained by
a person skilled in the art based on the prior art based on the prior art by
logic analysis, reasoning or
limited experimentation should be within the scope of protection determined by
the claims.
_5¨
CA 3024231 2018-11-15
