CN108264784A - A kind of silicon-modified epoxy anticorrosive paint and corrosion-inhibiting coating for refrigeration system - Google Patents
A kind of silicon-modified epoxy anticorrosive paint and corrosion-inhibiting coating for refrigeration system Download PDFInfo
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- CN108264784A CN108264784A CN201711423322.7A CN201711423322A CN108264784A CN 108264784 A CN108264784 A CN 108264784A CN 201711423322 A CN201711423322 A CN 201711423322A CN 108264784 A CN108264784 A CN 108264784A
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
Abstract
The invention discloses a kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint includes AB components in parts by weight, and wherein component A includes following components:9 12 parts of 100 parts of modifying epoxy resin by organosilicon, 10 25 parts of bisphenol f type epoxy resin, 5 15 parts of ethoxylated trimethylolpropane triacrylate, 20 30 parts of rutile titanium white powder, 327 35 parts of ultraviolet absorber, 531 13 parts of ultraviolet absorber, 13 parts of Polyether Modified Polysiloxanes Defoaming Agent, 48 parts of fume colloidal silica and butyl acetate;B component includes following components:10 15 parts of 50 60 parts of amido silicon oil, 45 65 parts of zinc powder, 48 parts of graphene microchip and 3 aminopropyltriethoxywerene werenes.The present invention has the advantages that:(1)Good weatherability;(2)It does not crack after curing;(3)There is cathodic protection.
Description
Technical field
The present invention relates to paint field, more particularly, to a kind of silicon-modified epoxy anticorrosive paint for refrigeration system
And corrosion-inhibiting coating.
Background technology
It is with a wide range of applications in the industries such as chemical industry, pharmacy and food as the refrigeration system of medium using ammonia, fluorine.
But in the refrigeration system used at present, equipment, container, pipeline due to the aggregation of condensed water and the erosion of chemical substance, greatly
It will appear different degrees of external corrosion more.Although using unit is general annual all can brushing red lead paint again.But due to surface
Cleaning is not clean, and effect is all undesirable.Equipment is once corroded exceeded, is repaired fairly cumbersome.It is to stop production first, equipment
In ammoniacal liquor and ammonia cement out and and isolation of system, must also carry out pressure test after reprocessing qualification.Therefore we are badly in need of
A kind of a kind of corrosion-inhibiting coating that can be used for a long time in refrigeration systems.
The unique structure of organosilicon, has had both inorganic material and the performance of organic material, has that surface tension is low, viscous temperature system
Number is small, compressibility is high, gas permeability is high etc. fundamental propertys, and with high-low temperature resistant, electric insulation, resistance to oxidation stability, resistance to
The excellent specific properties such as Hou Xing, fire retardant, hydrophobic, corrosion-resistant, non-toxic and tasteless and physiological inertia, are widely used in aerospace, electronics
Electrically, the industries such as building, transport, chemical industry, weaving, food, light industry, medical treatment, wherein organosilicon be mainly used in sealing, bonding,
Lubrication, coating, surface-active, demoulding, defoaming, suds, waterproof, moisture-proof, inertia filling etc..With organosilicon quantity and kind
Sustainable growth, application field are constantly widened, and form the staple product system that new chemical materials circle are taken the course of its own, many kinds are them
His chemicals can not substitute and essential.
Organosilicon structures are introduced into coating, coating obtained are enabled to have the characteristics that high-low temperature resistant is water-fast weather-proof,
So that coating can be good at adapting in refrigeration system.
Such as a kind of a kind of anticorrosive paint disclosed in Chinese patent literature, application publication number are CN 105315850
A, ingredient are as follows according to the mass fraction:78-125 parts of epoxy resin;45-55 parts of trihydroxy polyethers;Toluene di-isocyanate(TDI) 13-
29 parts;11-17 parts of absolute ethyl alcohol;13-25 parts of glass dust;7-12 parts of talcum powder;8-15 parts of dimethylbenzene.A kind of anti-corrosion of the invention applies
The antiseptic property of material is splendid, and when use is sprayed on Surface of profile, greatly improves the antiseptic property of section bar.But the coating
Having does not have low temperature resistant component in its shortcoming, such as its component, quality is harder after curing, is easily sent out under low-temperature condition
The situation that raw cracking comes off, is not achieved corrosion resistant requirement, in addition also without the group of addition reply electrochemical corrosion in its component
Point, therefore easily so that electrochemical corrosion occurs for matrix.
Invention content
The present invention be in order to overcome in coating in the prior art do not have flexible composition weatherability it is poor, curing after it is easy to crack, do not have
Have the problem of cathodic protection component, provide a kind of flexible component good weatherability, curing after do not crack, have anti-electrochemistry
Corrode a kind of silicon-modified epoxy anticorrosive paint and corrosion-inhibiting coating for refrigeration system of function.
To achieve these goals, the present invention uses following technical scheme:
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 10-25 parts of bisphenol f type epoxy resin, ethyoxyl
Change 5-15 parts of trimethylolpropane trimethacrylate, 20-30 parts of rutile titanium white powder, -327 3-5 parts of ultraviolet absorber, ultraviolet
- 531 1-3 parts of absorbent, 1-3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4-8 parts of fume colloidal silica and butyl acetate 9-12
Part;
B component includes following components:50-60 parts of amido silicon oil, 45-65 parts of zinc powder, 4-8 parts of graphene microchip and 3- aminopropans
10-15 parts of ethyl triethoxy silicane alkane.
Preferably, the anticorrosive paint includes AB components in parts by weight, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 15-20 parts of bisphenol f type epoxy resin, ethyoxyl
Change 10-15 parts of trimethylolpropane trimethacrylate, 20-25 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet suction
Receive 10-12 parts of 2 parts of agent -531,3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4-6 parts of fume colloidal silica and butyl acetate;
B component includes following components:50-55 parts of amido silicon oil, 50-65 parts of zinc powder, 5-8 parts of graphene microchip and 3- aminopropans
12-15 parts of ethyl triethoxy silicane alkane.
Preferably, the anticorrosive paint includes AB components in parts by weight, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 18 parts of bisphenol f type epoxy resin, ethoxylation three
12 parts of hydroxymethyl-propane triacrylate, 22 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet absorber -531 2
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 5 parts of fume colloidal silica and 11 parts of butyl acetate;
B component includes following components:55 parts of amido silicon oil, three ethoxy of 52 parts of zinc powder, 8 parts of graphene microchip and 3- aminopropyls
13 parts of base silane.
It is used in the present invention in component A using organosilicon epoxy resin as key component, silicone ingredients energy therein
Enough so that entire coating has the characteristic of low temperature resistant waterproof, so as to be applied in condenser system.Epoxy resin is after hardening
With very excellent mechanical property, so as to more wear-resisting.In addition titanium dioxide, fume colloidal silica, ultraviolet absorber -327
And ultraviolet absorber -531 can effectively stop ultraviolet light, and can enhance the weatherability and mechanical property of coating.
Amino-containing component in component B can carry out curing crosslinking with the epoxy resin in component A, so that coating
Matrix can quickly be protected.Zinc powder and graphene microchip can effectively protect the electrochemical corrosion on matrix, multi-faceted
The corrosion resistance of coating is ensured.
Preferably, the modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 150-180 parts of phenyl trichlorosilane, diphenyl dichlorosilane 200- are taken by weight
250 parts, 120-140 parts of methanol of 20-25 parts of water and methanol be added sequentially in reaction kettle, be stirred to react at -20 DEG C 30 minutes
Afterwards, temperature is gradually risen to 40 DEG C, and the reaction was continued 2-5 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group
Silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 150-200 parts of bisphenol A type epoxy resin, first
10-20 parts of 200 parts of benzene and boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in praseodynium aluminium
0.5-1.5 parts, raising temperature to 105-120 DEG C, be stirred to react 2-3 hour, after cooling remove vacuum distillation remove toluene and instead
The oligomer that should be generated, obtains modifying epoxy resin by organosilicon.
It is reacted, can obtained organic-silicon-modified with bisphenol A type epoxy resin by first synthesizing methoxy silicones
Epoxy resin, the compliance of the epoxy resin has very excellent regionalism with resistance to low temperature, in addition in resin also
Boric acid component is added to, is capable of the stickiness of effective reinforced resin from being preferably attached to matrix surface.
Preferably, the granularity of the zinc powder is 400-600 mesh.
A kind of refrigeration system silicon-modified epoxy corrosion-inhibiting coating, the corrosion-inhibiting coating is described in claim 1-3
Anticorrosive paint AB components be mutually mixed uniformly after, after being applied to refrigeration system surface, be heating and curing to obtain.
Preferably, the temperature that is heating and curing is 80-120 DEG C.
Therefore, the present invention has the advantages that:(1)Good weatherability;(2)It does not crack after curing;(3)With anti-electrification
Learn corrosion function.
Specific embodiment
Technical scheme of the present invention is made below by specific embodiment to further describe explanation.
If the raw material that use is said without specified otherwise, in the embodiment of the present invention is raw material commonly used in the art, implement
Method employed in example is the conventional method of this field.
Embodiment 1
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 10 parts of bisphenol f type epoxy resin, ethoxylation three
5 parts of hydroxymethyl-propane triacrylate, 20 parts of rutile titanium white powder, 3 parts of ultraviolet absorber -327, ultraviolet absorber -531 1
Part, 1 part of Polyether Modified Polysiloxanes Defoaming Agent, 4 parts of fume colloidal silica and 9 parts of butyl acetate;
B component includes following components:50 parts of amido silicon oil, 45 parts of zinc powder, 4 parts of graphene microchip and the 3- that granularity is 400 mesh
10 parts of aminopropyltriethoxywerene werene.
The modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 150 parts of phenyl trichlorosilane, 200 parts of diphenyl dichlorosilane, water are taken by weight
20 parts and 120 parts of methanol of methanol are added sequentially in reaction kettle, after 30 minutes are stirred to react at -20 DEG C, gradually rise temperature
To 40 DEG C, the reaction was continued 2 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 150 parts of bisphenol A type epoxy resin, toluene
200 parts and 10 parts of boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in 0.5 part of praseodynium aluminium, are risen
High-temperature is stirred to react 2 hours to 105 DEG C, and vacuum distillation is removed after cooling and removes toluene and the oligomer of reaction generation, is obtained
Modifying epoxy resin by organosilicon.
After the AB components of the anticorrosive paint are mutually mixed uniformly, after being applied to refrigeration system surface, it is heated to 80 DEG C admittedly
Change obtains silicon-modified epoxy corrosion-inhibiting coating.
The physical and chemical performance of the silicon-modified epoxy corrosion-inhibiting coating of gained is as follows:
Pencil hardness:F.
Pendulum-rocker hardness:86.
Resistance to condensed water grade:Level-one.
Salt fog resistance grade:Level-one.
Resistance to sodium hydroxide(50%)Grade:Two level.
Resistant to acetone grade:Level-one.
Resistance to ethyl alcohol grade:Level-one.
Embodiment 2
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 25 parts of bisphenol f type epoxy resin, ethoxylation three
15 parts of hydroxymethyl-propane triacrylate, 30 parts of rutile titanium white powder, 5 parts of ultraviolet absorber -327, ultraviolet absorber -531 3
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 8 parts of fume colloidal silica and 12 parts of butyl acetate;
B component includes following components:60 parts of amido silicon oil, 65 parts of zinc powder, 8 parts of graphene microchip and the 3- that granularity is 600 mesh
15 parts of aminopropyltriethoxywerene werene.
The modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 180 parts of phenyl trichlorosilane, 250 parts of diphenyl dichlorosilane, water are taken by weight
25 parts and 140 parts of methanol of methanol are added sequentially in reaction kettle, after 30 minutes are stirred to react at -20 DEG C, gradually rise temperature
To 40 DEG C, the reaction was continued 5 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 200 parts of bisphenol A type epoxy resin, toluene
200 parts and 20 parts of boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in 1.5 parts of praseodynium aluminium, are risen
High-temperature is stirred to react 3 hours to 120 DEG C, and vacuum distillation is removed after cooling and removes toluene and the oligomer of reaction generation, is obtained
Modifying epoxy resin by organosilicon.
After the AB components of the anticorrosive paint are mutually mixed uniformly, after being applied to refrigeration system surface, it is heated to 120 DEG C admittedly
Change obtains silicon-modified epoxy corrosion-inhibiting coating.
The physical and chemical performance of the silicon-modified epoxy corrosion-inhibiting coating of gained is as follows:
Pencil hardness:F.
Pendulum-rocker hardness:88.
Resistance to condensed water grade:Level-one.
Salt fog resistance grade:Level-one.
Resistance to sodium hydroxide(50%)Grade:Two level.
Resistant to acetone grade:Level-one.
Resistance to ethyl alcohol grade:Level-one.
Embodiment 3
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 15 parts of bisphenol f type epoxy resin, ethoxylation three
10 parts of hydroxymethyl-propane triacrylate, 20 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet absorber -531 2
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4 parts of fume colloidal silica and 10 parts of butyl acetate;
B component includes following components:50 parts of amido silicon oil, three ethoxy of 50 parts of zinc powder, 5 parts of graphene microchip and 3- aminopropyls
12 parts of base silane.
The modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 160 parts of phenyl trichlorosilane, 240 parts of diphenyl dichlorosilane, water are taken by weight
24 parts and 130 parts of methanol of methanol are added sequentially in reaction kettle, after 30 minutes are stirred to react at -20 DEG C, gradually rise temperature
To 40 DEG C, the reaction was continued 3 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 180 parts of bisphenol A type epoxy resin, toluene
200 parts and 15 parts of boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in 1 part of praseodynium aluminium, raising
Temperature is stirred to react 3 hours to 110 DEG C, and vacuum distillation is removed after cooling and removes toluene and the oligomer of reaction generation, is had
Machine silicon modified epoxy resin.
After the AB components of the anticorrosive paint are mutually mixed uniformly, after being applied to refrigeration system surface, it is heated to 100 DEG C admittedly
Change obtains silicon-modified epoxy corrosion-inhibiting coating.
The physical and chemical performance of the silicon-modified epoxy corrosion-inhibiting coating of gained is as follows:
Pencil hardness:F.
Pendulum-rocker hardness:86.
Resistance to condensed water grade:Level-one.
Salt fog resistance grade:Level-one.
Resistance to sodium hydroxide(50%)Grade:Two level.
Resistant to acetone grade:Level-one.
Resistance to ethyl alcohol grade:Level-one.
Embodiment 4
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 20 parts of bisphenol f type epoxy resin, ethoxylation three
15 parts of hydroxymethyl-propane triacrylate, 25 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet absorber -531 2
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4-6 parts of fume colloidal silica and 12 parts of butyl acetate;
B component includes following components:55 parts of amido silicon oil, three ethoxy of 65 parts of zinc powder, 8 parts of graphene microchip and 3- aminopropyls
15 parts of base silane.
The modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 175 parts of phenyl trichlorosilane, 245 parts of diphenyl dichlorosilane, water are taken by weight
22 parts and 130 parts of methanol of methanol are added sequentially in reaction kettle, after 30 minutes are stirred to react at -20 DEG C, gradually rise temperature
To 40 DEG C, the reaction was continued 4 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 160 parts of bisphenol A type epoxy resin, toluene
200 parts and 15 parts of boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in 1.5 parts of praseodynium aluminium, are risen
High-temperature is stirred to react 2 hours to 120 DEG C, and vacuum distillation is removed after cooling and removes toluene and the oligomer of reaction generation, is obtained
Modifying epoxy resin by organosilicon.
After the AB components of the anticorrosive paint are mutually mixed uniformly, after being applied to refrigeration system surface, it is heated to 115 DEG C admittedly
Change obtains silicon-modified epoxy corrosion-inhibiting coating.
The physical and chemical performance of the silicon-modified epoxy corrosion-inhibiting coating of gained is as follows:
Pencil hardness:F.
Pendulum-rocker hardness:87.
Resistance to condensed water grade:Level-one.
Salt fog resistance grade:Level-one.
Resistance to sodium hydroxide(50%)Grade:Two level.
Resistant to acetone grade:Level-one.
Resistance to ethyl alcohol grade:Level-one.
Embodiment 5
A kind of silicon-modified epoxy anticorrosive paint for refrigeration system, the anticorrosive paint include in parts by weight
AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 18 parts of bisphenol f type epoxy resin, ethoxylation three
12 parts of hydroxymethyl-propane triacrylate, 22 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet absorber -531 2
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 5 parts of fume colloidal silica and 11 parts of butyl acetate;
B component includes following components:55 parts of amido silicon oil, three ethoxy of 52 parts of zinc powder, 8 parts of graphene microchip and 3- aminopropyls
13 parts of base silane.
The modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 155 parts of phenyl trichlorosilane, 225 parts of diphenyl dichlorosilane, water are taken by weight
20 parts and 135 parts of methanol of methanol are added sequentially in reaction kettle, after 30 minutes are stirred to react at -20 DEG C, gradually rise temperature
To 40 DEG C, the reaction was continued 3 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 185 parts of bisphenol A type epoxy resin, toluene
200 parts and 15 parts of boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in 1.5 parts of praseodynium aluminium, are risen
High-temperature is stirred to react 2 hours to 105 DEG C, and vacuum distillation is removed after cooling and removes toluene and the oligomer of reaction generation, is obtained
Modifying epoxy resin by organosilicon.
After the AB components of the anticorrosive paint are mutually mixed uniformly, after being applied to refrigeration system surface, it is heated to 120 DEG C admittedly
Change obtains silicon-modified epoxy corrosion-inhibiting coating.
The physical and chemical performance of the silicon-modified epoxy corrosion-inhibiting coating of gained is as follows:
Pencil hardness:F.
Pendulum-rocker hardness:86.
Resistance to condensed water grade:Level-one.
Salt fog resistance grade:Level-one.
Resistance to sodium hydroxide(50%)Grade:Two level.
Resistant to acetone grade:Level-one.
Resistance to ethyl alcohol grade:Level-one.
Claims (7)
1. a kind of silicon-modified epoxy anticorrosive paint for refrigeration system, it is characterized in that, the anticorrosive paint is according to weight
It measures number meter and includes AB components, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 10-25 parts of bisphenol f type epoxy resin, ethyoxyl
Change 5-15 parts of trimethylolpropane trimethacrylate, 20-30 parts of rutile titanium white powder, -327 3-5 parts of ultraviolet absorber, ultraviolet
- 531 1-3 parts of absorbent, 1-3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4-8 parts of fume colloidal silica and butyl acetate 9-12
Part;
B component includes following components:50-60 parts of amido silicon oil, 45-65 parts of zinc powder, 4-8 parts of graphene microchip and 3- aminopropans
10-15 parts of ethyl triethoxy silicane alkane.
2. a kind of silicon-modified epoxy anticorrosive paint for refrigeration system according to claim 1, it is characterized in that, institute
The anticorrosive paint stated includes AB components in parts by weight, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 15-20 parts of bisphenol f type epoxy resin, ethyoxyl
Change 10-15 parts of trimethylolpropane trimethacrylate, 20-25 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet suction
Receive 10-12 parts of 2 parts of agent -531,3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 4-6 parts of fume colloidal silica and butyl acetate;
B component includes following components:50-55 parts of amido silicon oil, 50-65 parts of zinc powder, 5-8 parts of graphene microchip and 3- aminopropans
12-15 parts of ethyl triethoxy silicane alkane.
3. a kind of silicon-modified epoxy anticorrosive paint for refrigeration system according to claim 2, it is characterized in that, institute
The anticorrosive paint stated includes AB components in parts by weight, wherein
Component A includes following components:100 parts of modifying epoxy resin by organosilicon, 18 parts of bisphenol f type epoxy resin, ethoxylation three
12 parts of hydroxymethyl-propane triacrylate, 22 parts of rutile titanium white powder, 4 parts of ultraviolet absorber -327, ultraviolet absorber -531 2
Part, 3 parts of Polyether Modified Polysiloxanes Defoaming Agent, 5 parts of fume colloidal silica and 11 parts of butyl acetate;
B component includes following components:55 parts of amido silicon oil, three ethoxy of 52 parts of zinc powder, 8 parts of graphene microchip and 3- aminopropyls
13 parts of base silane.
4. a kind of silicon-modified epoxy anti-corrosion for refrigeration system according to any one in claim 1-3 applies
Material, it is characterized in that, the modifying epoxy resin by organosilicon preparation method is as follows:
(a)100 parts of dimethyldichlorosilane, 150-180 parts of phenyl trichlorosilane, diphenyl dichlorosilane 200- are taken by weight
250 parts, 120-140 parts of methanol of 20-25 parts of water and methanol be added sequentially in reaction kettle, be stirred to react at -20 DEG C 30 minutes
Afterwards, temperature is gradually risen to 40 DEG C, and the reaction was continued 2-5 hours, is washed to neutrality after reaction, divides exactly solvent and obtains methoxyl group
Silicones;
(b)Meter takes step in parts by weight(a)In 100 parts of methoxyl group silicones, 150-200 parts of bisphenol A type epoxy resin, first
10-20 parts of 200 parts of benzene and boric acid are added in reaction kettle, and 70 DEG C are uniformly mixed, and then add in praseodynium aluminium
0.5-1.5 parts, raising temperature to 105-120 DEG C, be stirred to react 2-3 hour, after cooling remove vacuum distillation remove toluene and instead
The oligomer that should be generated, obtains modifying epoxy resin by organosilicon.
5. a kind of silicon-modified epoxy anti-corrosion for refrigeration system according to any one in claim 1-3 applies
Material, it is characterized in that, the granularity of the zinc powder is 400-600 mesh.
6. a kind of refrigeration system silicon-modified epoxy corrosion-inhibiting coating, it is characterized in that, the corrosion-inhibiting coating is by claim 1-3
Described in anticorrosive paint AB components be mutually mixed uniformly after, after being applied to refrigeration system surface, be heating and curing to obtain.
7. a kind of refrigeration system silicon-modified epoxy corrosion-inhibiting coating according to claim 6, it is characterized in that, the institute
The temperature that is heating and curing stated is 80-120 DEG C.
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Cited By (1)
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CN109735198A (en) * | 2018-12-06 | 2019-05-10 | 西北工业大学 | Zinc-rich paint and metal parts |
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Application publication date: 20180710 |