CN109439133A - A kind of graphene joint trimming agent and preparation method thereof - Google Patents
A kind of graphene joint trimming agent and preparation method thereof Download PDFInfo
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- CN109439133A CN109439133A CN201811119441.8A CN201811119441A CN109439133A CN 109439133 A CN109439133 A CN 109439133A CN 201811119441 A CN201811119441 A CN 201811119441A CN 109439133 A CN109439133 A CN 109439133A
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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
- C09D5/24—Electrically-conducting paints
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention belongs to technical field of coatings, more particularly to a kind of graphene joint trimming agent and preparation method thereof, the graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:0.7-1.3, wherein, component A includes following parts by weight of component: 100-120 parts of epoxy resin latex, 0.1-10 parts of graphene oxide, 0.5-15 parts of thixotropic agent, 0.1-10 parts of defoaming agent, 0.1-10 parts of levelling agent, 0.1-5 parts of pigment;B component includes following parts by weight of component: 40-80 parts of curing agent, 0.5-15 parts of thixotropic agent, 1-10 parts of curing accelerator.Joint trimming agent prepared by the present invention has excellent antistatic property, and its mechanical performance is good.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of graphene joint trimming agent and preparation method thereof.
Background technique
Be filled using gap of the white cement to ceramic tile, with reach waterproof, beauty, it is antifouling the purpose of, this be at present most
Common method.However, white cement gap filler rough surface, can become intensely dark with the extension of use time, and it is easy
Mildew blacks, it is difficult to clean, seriously affect finishing aesthetic effect.In recent years, occurs a kind of novel pointing-in the market
Joint trimming agent, other than having many advantages, such as joint filling effect, it is high to be also equipped with mould proof waterproof, easy to clean, not blackening, glossiness, more next
It is more welcome.
Currently, joint trimming agent on the market mainly includes two kinds of one-component joint trimming agent and two-component oiliness joint trimming agent.One-component
The generally existing shrinking percentage of joint trimming agent is big, the disadvantages of being easy to fall off.Two-component oiliness joint trimming agent have shrinking percentage is low, caking property is good,
The advantages that intensity is high, brightness is high is expected to gradually replace one-component joint trimming agent, becomes the market mainstream.However, existing two-component oil
There is also following shortcoming and defect for property joint trimming agent: contain volatile organic matter in two-component oiliness joint trimming agent, not only pollutes environment,
But also human health can be damaged, need T-me line paper to avoid ceramic tile is contaminated, and working procedure is cumbersome etc. before construction.It is commercially available double
Component oiliness joint trimming agent can not keep beautiful for a long time, and germ easy to breed in a humidity environment, and easily mildew blacks, it is difficult to clear
It is clean, influence overall beautiful effect.
Therefore, be badly in need of developing it is a kind of it is environmentally friendly, antibiotic property is good, is not easy mildew blacks, soil resistance is good, antistatic, Yi Qing
Joint trimming agent clean, intensity is high, shrinking percentage is low.
Graphene be one kind by carbon atom with sp2Hydridization connects the monoatomic layer two dimension with hexagonal lattice structure to be formed
Crystal, carbon atom are regularly arranged among honeycomb lattice structural unit.The special atomic structure of graphene makes it have very
Mostly unique performance: its tensile strength reaches 130GPa, and elasticity modulus reaches 1.1TPa, and hardness reaches 4.5 × 108NmKg-1, it is
Tens times of steel are intensity and the highest material of hardness in known materials.It has great specific surface area, single-layer graphene
Specific surface area be up to 2.6 × 103m2g-1;At room temperature, carrier is in SiO2Mobility on substrate is 104m2v-1s-1, conductance
Rate is 104S/cm is the material that electric conductivity is best at room temperature;Its room temperature thermal conductivity is 4.40 × 103Wm-1k-1~5.78 ×
103Wm-1k-1It is the highest material of thermal conductivity so far in range.Graphene also has good barrier properties for gases, is made with it
At film can obstruct passing through for the smallest gas molecule helium.Further, since its zigzag edge possesses lone pair electrons, make
It is with potential magnetic property, such as magnetic switch and ferromagnetism.
Summary of the invention
Invention broadly provides a kind of graphene joint trimming agent and preparation method thereof, which has excellent antistatic
Performance.Its technical solution is as follows:
Graphene possesses advantage of the two-dimensional nano filler as coating reinforced phase, such as high intensity, cracking resistance, weather resistance.
It, can acid-alkali-corrosive-resisting because its nanoscale twins is made of chemically inert carbon atom.In addition, remnants have because of graphene system on its lamella
The oxygen-containing functional group generated during standby, thus there is certain bactericidal effect.Therefore graphene and epoxy resin are carried out former
Position is compound, to prepare the joint trimming agent with excellent function.
A kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:0.7-1.3, wherein
Component A includes following parts by weight of component: 100-120 parts of epoxy resin latex, 0.1-10 parts of graphene oxide, thixotroping
0.5-15 parts of agent, 0.1-10 parts of defoaming agent, 0.1-10 parts of levelling agent, 0.1-5 parts of pigment;
B component includes following parts by weight of component: 40-80 parts of curing agent, 0.5-15 parts of thixotropic agent, curing accelerator 1-10
Part.
Preferably, the epoxy resin latex is the liquid bisphenol type epoxy resin that epoxide number is 0.44-0.55.
Preferably, the carbon-to-oxygen ratio of the graphene oxide is (4-9): (1-6).
Preferably, the thixotropic agent is fumed silica and/or bentonite.
Preferably, the defoaming agent is TEGO Foamex 810 and/or TEGO Foamex825.
Preferably, the levelling agent is BYK-333 and/or BYK-378;The pigment is pearl powder, titanium dioxide, glitter powder
One or more of.
Preferably, the amine value of the curing agent is 0.8-3.5mmol/g.
Preferably, the curing accelerator is diethylenetriamine, triethylene tetramine, tetraethylenepentamine, 1,3- hexamethylene diformazan
One or more of amine, 4,4 '-diamino-dicyclohexyl methanes, isophorone diamine.
A kind of preparation method of above-mentioned graphene joint trimming agent, comprising the following steps:
(1) formula ratio graphene oxide, thixotropic agent, defoaming agent, levelling agent, pigment are added in epoxy resin latex, are mixed
It closes uniformly, is ultrasonically treated, ultrasonic power is 50~5000W, and ultrasonic time is 0.5~50h, obtains component A;
(2) curing agent, thixotropic agent, curing accelerator are uniformly mixed, obtain B component;
(3) component A and B component are proportionally mixed.
Preferably, after joint trimming agent construction, ultraviolet irradiation processing, the wave of ultraviolet light are carried out to the graphene joint trimming agent after solidification
A length of 100-400nm, power 50-5000W, processing time are 0.1-400min.
Using the above scheme, the invention has the following advantages that
(1) graphene itself has high intensity, and the three-dimensional crosslinked network structure that graphene and epoxy resin are formed, can be with
The intensity of joint trimming agent is dramatically increased, the film strength of graphene joint trimming agent obtained is higher than traditional joint trimming agent by 20%~70%;
(2) graphene nano lamella is made of chemically inert carbon atom, can acid-alkali-corrosive-resisting, to improve joint trimming agent
Service life;
(3) remnants have because of graphene oxygen-containing functional group produced during the preparation process on graphene nano lamella, thus have
Certain bactericidal effect;
(4) graphene itself has high conduction performance, can be significant by the three-dimensional conductive network formed in joint trimming agent
The anti-static function for increasing joint trimming agent, avoids for the dust over time in air being adsorbed among the slit of floor tile.
Specific embodiment
Experimental method in following embodiment is conventional method unless otherwise required, related experiment reagent and material
Material is conventional biochemical reagent and material unless otherwise required.
Embodiment 1
1. a kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:0.8, wherein
Component A includes following parts by weight of component: 100 parts of epoxy resin, 1 part of graphene oxide, 0.5 part of thixotropic agent, defoaming
0.5 part of agent, 0.5 part of levelling agent, 2 parts of pigment;
B component includes following parts by weight of component: 60 parts of curing agent, 0.5 part of thixotropic agent, 1 part of curing accelerator.
The epoxy resin is selected from epoxy resin E51.
The pigment is glitter powder.
The thixotropic agent is fumed silica.
The defoaming agent is TEGO Foamex 810.
The levelling agent is BYK-333.
The curing agent is polyetheramine, amine value 1.05mmol/g.
The curing accelerator is diethylenetriamine.
The carbon-to-oxygen ratio of the graphene oxide is 7:1.
2. above-mentioned joint trimming agent the preparation method is as follows:
(1) formula ratio graphene oxide, thixotropic agent, defoaming agent, levelling agent, pigment are added in epoxy resin latex, are mixed
It closes uniformly, is ultrasonically treated, ultrasonic power is 50~5000W, and ultrasonic time is 0.5~50h, obtains component A;
(2) curing agent, thixotropic agent, curing accelerator are uniformly mixed, obtain B component;
(3) component A and B component are proportionally mixed;
(4) after constructing, ultraviolet irradiation processing is carried out to the graphene joint trimming agent after solidification, the wavelength of ultraviolet light is 100-
400nm, power 50-5000W, processing time are 0.1-400min;Ultraviolet irradiation processing makes the graphene oxide in joint trimming agent
It is reduced to graphene, increases the intensity and barrier property of joint trimming agent.
3. the hardness of gained graphene joint trimming agent is 65D, flexural strength 16.4MPa, resistivity is 2.1 × 108Ω.It is right
Gold-coloured staphylococci and the antibiotic rate of Escherichia coli are 95.21%, and antibiotic rate is 90.48% after 200 washings.In ackd salt
Flexural strength is 15.7MPa after carrying out the corrosion of 240h in fog chamber.
Embodiment 2
1. a kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:1, wherein
Component A includes following parts by weight of component: 120 parts of epoxy resin, 5 parts of graphene oxide, 15 parts of thixotropic agent, defoaming agent
1 part, 10 parts of levelling agent, 0.1 part of pigment;
B component includes following parts by weight of component: 40 parts of curing agent, 15 parts of thixotropic agent, 5 parts of curing accelerator.
The epoxy resin is selected from epoxy resin E44.
The pigment is pearl powder.
The thixotropic agent is bentonite.
The defoaming agent is TEGO Foamex 825.
The levelling agent is BYK-378.
The curing agent is polyetheramine, amine value 1.24mmol/g.
The curing accelerator is triethylene tetramine.
The carbon-to-oxygen ratio of the graphene oxide is 4:1.
2. preparation method is in the same manner as in Example 1.
3. the hardness of gained graphene joint trimming agent is 64D, flexural strength 15.1MPa, resistivity is 6.5 × 107Ω.It is right
Gold-coloured staphylococci and the antibiotic rate of Escherichia coli are 93.58%, and antibiotic rate is 89.77% after 200 washings.In ackd salt
Flexural strength is 14.6MPa after carrying out the corrosion of 240h in fog chamber.
Embodiment 3
1. a kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:0.7, wherein
Component A includes following parts by weight of component: 110 parts of epoxy resin, 10 parts of graphene oxide, 10 parts of thixotropic agent, defoaming
10 parts of agent, 5 parts of levelling agent, 5 parts of pigment;
B component includes following parts by weight of component: 80 parts of curing agent, 2 parts of thixotropic agent, 10 parts of curing accelerator.
The epoxy resin is selected from epoxy resin E51.
The pigment is titanium dioxide.
The thixotropic agent is fumed silica.
The defoaming agent is TEGO Foamex 825.
The levelling agent is BYK-333.
The curing agent is polyetheramine, amine value 1.57mmol/g.
The curing accelerator is tetraethylenepentamine.
The carbon-to-oxygen ratio of the graphene oxide is 3:1.
2. preparation method is in the same manner as in Example 1.
3. the hardness of gained graphene joint trimming agent is 67D, flexural strength 16.9MPa, resistivity is 4.8 × 106Ω.It is right
Gold-coloured staphylococci and the antibiotic rate of Escherichia coli are 93.01%, and antibiotic rate is 91.52% after 200 washings.In ackd salt
Flexural strength is 16.1MPa after carrying out the corrosion of 240h in fog chamber.
Embodiment 4
1. a kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:1.3, wherein
Component A includes following parts by weight of component: 100 parts of epoxy resin, 3 parts of graphene oxide, 0.5 part of thixotropic agent, defoaming
0.1 part of agent, 0.1 part of levelling agent, 1 part of pigment;
B component includes following parts by weight of component: 40 parts of curing agent, 0.5 part of thixotropic agent, 3 parts of curing accelerator.
The epoxy resin is selected from epoxy resin E44.
The pigment is pearl powder.
The thixotropic agent is bentonite.
The defoaming agent is TEGO Foamex 810.
The levelling agent is BYK-378.
The curing agent is polyetheramine, amine value 1.85mmol/g.
The curing accelerator is the mixing of isophorone diamine and 1,3- hexamethylene dimethylamine.
The carbon-to-oxygen ratio of the graphene oxide is 3:1.
2. preparation method is in the same manner as in Example 1.
3. the hardness of gained graphene joint trimming agent is 65D, flexural strength 17.3MPa, resistivity is 9.0 × 107Ω.It is right
Gold-coloured staphylococci and the antibiotic rate of Escherichia coli are 96.72%, and antibiotic rate is 92.34% after 200 washings.In ackd salt
Flexural strength is 16.6MPa after carrying out the corrosion of 240h in fog chamber.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (10)
1. a kind of graphene joint trimming agent is formulated by component A and B component according to weight ratio 1:0.7-1.3, wherein
Component A includes following parts by weight of component: 100-120 parts of epoxy resin latex, 0.1-10 parts of graphene oxide, thixotropic agent
0.5-15 parts, 0.1-10 parts of defoaming agent, 0.1-10 parts of levelling agent, 0.1-5 parts of pigment;
B component includes following parts by weight of component: 40-80 parts of curing agent, 0.5-15 parts of thixotropic agent, 1-10 parts of curing accelerator.
2. graphene joint trimming agent according to claim 1, it is characterised in that: the epoxy resin latex is that epoxide number is
The liquid bisphenol type epoxy resin of 0.44-0.55.
3. graphene joint trimming agent according to claim 1, it is characterised in that: the carbon-to-oxygen ratio of the graphene oxide is (4-
9):(1-6)。
4. graphene joint trimming agent according to claim 1, it is characterised in that: the thixotropic agent be fumed silica and/
Or bentonite.
5. graphene joint trimming agent according to claim 1, it is characterised in that: the defoaming agent is TEGO Foamex 810
And/or TEGO Foamex 825.
6. graphene joint trimming agent according to claim 1, it is characterised in that: the levelling agent is BYK-333 and/or BYK-
378;The pigment is one or more of pearl powder, titanium dioxide, glitter powder.
7. graphene joint trimming agent according to claim 1, it is characterised in that: the amine value of the curing agent is 0.8-
3.5mmol/g。
8. graphene joint trimming agent according to claim 1, it is characterised in that: the curing accelerator be diethylenetriamine,
Triethylene tetramine, tetraethylenepentamine, 1,3- hexamethylene dimethylamine, 4,4 '-diamino-dicyclohexyl methanes, in isophorone diamine
It is one or more of.
9. a kind of preparation method of graphene joint trimming agent as described in claim 1, it is characterised in that: the following steps are included:
(1) formula ratio graphene oxide, thixotropic agent, defoaming agent, levelling agent, pigment are added in epoxy resin latex, mixing is equal
It is even, it is ultrasonically treated to obtain component A;
(2) curing agent, thixotropic agent, curing accelerator are uniformly mixed, obtain B component;
(3) component A and B component are proportionally mixed.
10. the preparation method of graphene joint trimming agent according to claim 9, it is characterised in that: after joint trimming agent construction, to solid
Graphene joint trimming agent after change carries out ultraviolet irradiation processing, and the wavelength of ultraviolet light is 100-400nm, power 50-5000W, place
The reason time is 0.1-400min.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112063338A (en) * | 2020-09-27 | 2020-12-11 | 广东粤固建材科技有限公司 | Anticorrosive joint filling material for ceramic tiles and preparation method thereof |
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2018
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WO2009134492A2 (en) * | 2008-02-05 | 2009-11-05 | Aksay Ilhan A | Functionalized graphene sheets having high carbon to oxygen ratios |
CN106349954A (en) * | 2016-08-29 | 2017-01-25 | 郑丽芬 | Double-component tile-seam filling agent |
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Application publication date: 20190308 |