A kind of bottom surface unification single coating paint and preparation method thereof and constructional method
Technical field
The present invention relates to the coating class paint in engineering machinery, particularly a kind of bottom surface for engineering machinery unification single coating paint, and preparation method thereof and constructional method.
Background technology
In recent years, along with the fast development of world economy, construction machinery production industry presents the trend of develop rapidly.Different utilization fields, there is different engineering mechanical devices, such as excavation machinery, piling machinery, earth moving machinery, concreting machinery, pavement construction machinery, compact machine, hoisting machinery, mining machinery, rock drilling machinery and Other Engineering machinery and zero accessory.They are in national defense construction, communications and transportation construction, and the fields such as energy industry construction, agricultural water conservancy construction, industry and civilian construction, urban construction, construction of environmental protection and mining, all play the Main Function of gravity instrument.Engineering machinery long-term exposure and being used in severe operating environment, subjects the impact of the Different climate of strong variations, as erosions such as wind, rain, salt fog, topsoil.This just proposes severe problem to engineering machinery coating, require that engineering machinery coating not only will have excellent resistance to corrosion, also to there be good wear resistance and anti-hitting property of stone, engineering machinery coating not only can resist winter severe cold, summer extremely hot adverse weather condition, also wants resist the severe operating environmental condition such as humidity, chemical corrosion and shock.Present engineering machinery is various in style, and production firm is also numerous, and market competition is very fierce.
At present, coating in engineering machinery is mainly based on epoxy, vinylformic acid, polyurethane coating systems, due to the self performance reason of these products, in order to reach the requirement for anticorrosion of 3 ~ 5 years, generally all will through the coating system in 2 ~ 3 roads, operation is numerous and diverse, time consumption long, energy consumption is high, and factory's batch production efficiency is low, and cost is high.
Summary of the invention
Technical problem to be solved by this invention is: in prior art, and the coating in engineering machinery generally all will through the coating system in 2 ~ 3 roads, and operation is numerous and diverse, time consumption long, energy consumption is high, and factory's batch production efficiency is low, and cost is high.
For solving this technical problem, technical scheme provided by the invention is: the invention provides a kind of bottom surface unification single coating paint, in the formula of this layer of lacquer, component concentration, is by weight percentage:
Epoxy modified acrylic resin 29.15% ~ 33.06%, isocyanate trimer 9.49% ~ 10.77%, tinting pigment 3.53 ~ 12.56%, rust-stabilising pigment 8.59 ~ 10.62%, hydrocarbon liquid petroleum resin 3.35 ~ 4.83%%, auxiliary agent 2.52% ~ 3.42%, organic solvent 26.77 ~ 41.34%%
Wherein, epoxy modified acrylic resin, tinting pigment, rust-stabilising pigment, hydrocarbon liquid petroleum resin, auxiliary agent and organic solvent composition base-material; Isocyanate trimer is solidifying agent;
Bottom surface unification single coating paint, when engineering machinery uses, coating one coat, just can meet the service requirements of engineering machinery;
Containing epoxy modified acrylic resin in this bottom surface unification single coating paint, epoxy modified acrylic resin with methyl methacrylate, vinylformic acid, Propylene glycol monoacrylate, trimethyol propane triacrylate etc. for raw material monomer, properties-correcting agent is made, through being polymerized the resin of chemical combination with epoxy resin.The present invention selectes the filmogen of epoxy modified acrylic resin as bottom surface unification single coating paint of stable not easily xanthochromia.In epoxy modified acrylic resin, acrylic resin contains a large amount of C-C keys, and being heated, under the effect of light (comprising ultraviolet), C-C key is difficult to fracture, embodies and maintains the superpower weathering resistance of vinylformic acid.With epoxy resin modification in addition, combine again the intrinsic tenacity of epoxy resin and resistant to chemical media corrodibility.But different epoxy modified acrylic resins is due to the difference of monomeric species and ratio, and the difference of epoxy resin modification amount, cause the epoxy modified acrylic resin difference of each manufacturer production on market very large, therefore the epoxy modified acrylic resin in the present invention's formula, be selected from ZJ-101 resin, ZJ-103 resin that Sheng Jia resin company limited of Suzhou City produces, or Suzhou add some points Chemical Co., Ltd. produce AP-6102 resin, the performance test of the epoxy modified acrylic resin that table 1 is selected for the present invention:
The performance (color: dumb light engineering is black) of the epoxy modified acrylic resin that table 1 the present invention uses
The present invention selects weather resisteant excellent, and have superpower antiseptic power, color inhibition ability aliphatic isocyanates tripolymer as solidifying agent, the curing reaction of bottom surface unification single coating paint and solidifying agent is:
If solidifying agent is R '-NCO, epoxy modified acrylic resin is R-OH,
R’-NCO+R-OH→R’NHCOOR;
As preferably: in formula, in isocyanate trimer-NCO group and epoxy modified acrylic resin in the mol ratio of-OH group be 1:1, wherein-NCO is slightly more than-OH,-NCO/-OH equivalence ratio should be 1:1 in theory, make active group complete reaction, but then impossible actually, hydroxyl is hydrophilic radical, should hydroxyl reaction be made complete as far as possible.Therefore ,-NCO content should little over amount.In addition, paint film contacts with air in drying process, and the moisture in air also can react with-NCO, consumes-NCO.Consider from these two aspects, suitably should increase a bit-NCO/-OH equivalence ratio.
As preferably: tinting pigment selects carbon black, rutile titanium dioxide, metal oxide or mixed phase metallike oxide compound to be main body tinting pigment kind,
As preferably: rust-stabilising pigment selects zinc oxide, aluminum oxide, zinc phosphate, aluminum phosphate to be main body rust-stabilising pigment kind,
They play colour stability in paint film, have reinforcing effect, also have the effect of shielding UV radiation, promote anti-aging, the corrosion resistant function of paint film, and the selection of pigment is very large to the fading of finish paint, efflorescence, loss of gloss performance impact;
As preferably: the low viscous hydrocarbon liquid petroleum resin of long-chain, as modified resin, are a non-reacted properties-correcting agent based on naphthalene and biphenyl.Containing a large amount of non-reaction hydroxyls in the side chain of this resin, wide variety of substrates has fabulous sticking power; Long-chain in molecular structure, makes it have excellent increasing tougheness and shock resistance, can improve the toughness of paint film; The naphthalene of resin and biphenyl structural make it with various kinds of resin as epoxy, vinylformic acid, urethane, alkyd, tetraethyl silicate etc. have excellent consistency; Low viscous resin has good wettability to pigment and ground, can improve the wettability to color stuffing, can also reduce the surface treatment grade of ground, and the ground of various low prepared surface has good wetting and adhesion effect; Long-chain in molecule has excellent hydrophobicity, makes modified coating have excellent water tolerance, improves the antiseptic property of coating;
As preferably: auxiliary agent is for containing pigment affinity groups high-molecular copolymer class pigment dispersing agent, and the concrete kind selected is different according to the difference of pigment;
As preferably: organic solvent is benzene class, based organic solvent, is selected from toluene, dimethylbenzene, vinyl acetic monomer or N-BUTYL ACETATE,
These solvents have good solubility to epoxy modified acrylic resin and isocyanate trimer, improve workability, form the paint film of flat smooth.
Present invention also offers a kind of preparation method of above-mentioned bottom surface unification single coating paint, preparation method is, first epoxy modified acrylic resin is mixed with auxiliary agent, hydrocarbon liquid petroleum resin, organic solvent, is uniformly dispersed, be incorporated to tinting pigment, rust-stabilising pigment again, through high speed shear dispersion, then through sand milling closed process, the degree of depth is disperseed, allotment lacquering, also referred to as base-material; In addition using isocyanate trimer as solidifying agent.
Present invention also offers a kind of constructional method of above-mentioned bottom surface unification single coating paint, constructional method is, first by base-material and solidifying agent proportioning resulting mixture, stir, and be adjusted to working viscosity with thinner, then carry out construction application, brush can be adopted, spray, roll, soak, the coating method of roller, coating one coat.
As preferably: thinner is benzene class, based organic solvent, be selected from toluene, dimethylbenzene, vinyl acetic monomer or N-BUTYL ACETATE, these solvents have good solubility to epoxy modified acrylic resin and isocyanate trimer, improve workability, form the paint film of flat smooth.
In actual applications, the bottom surface unification single coating paint of engineering machinery of the present invention is divided into base-material and solidifying agent, correctly must join paint by product proportioning.Under usual condition of construction, a set of solidifying agent joined by one barrel of base-material.If only need a small amount of paint, then need to join paint according to the specified ratio.The requirement of the bottom surface unification single coating paint of engineering machinery of the present invention not only demand fulfillment engineering machinery weathering resistance and erosion resistance, and the otherness of each manufacturer's condition of engineering equipment will be considered, coating application condition must be that baking-curing film forming and ambient cure film forming can, can film-forming under high/low temperature, this condition is indispensable.Therefore, the bottom surface unification single coating paint product of two component packaging in use determined by the bottom surface of engineering machinery of the present invention unification single coating paint, the complete necessary execution conditions of engineering machinery coating.
The invention has the beneficial effects as follows: the unification of the bottom surface for engineering machinery single coating paint of the present invention is a kind of protective system; its construction is simple; one coat just can meet the requirement for anticorrosion of engineering machinery; can conservation project mechanical surface well; delay various atomospheric corrosion medium to the infringement of steel construction, guarantee its protection life-span.Simple owing to constructing, so the application greatly reducing production engineering machinery producer drops into, specifically there is following advantage:
1, superpower resistant to chemical media corrodibility: coating is through the 1500h of resistance to neutral salt spray test, and paint film is non-foaming, non-corrosive, do not ftracture, do not come off;
2, temperature tolerance, strong adaptability: coating normally can use in-40 DEG C ~ 160 DEG C temperature ranges, can resist in freezing winter and in sultry summer with the complex environment of alternation of wetting and drying;
3, excellent mechanical property: there is excellent anti-stone and hit performance and wear resisting property;
4, application property: coating application condition can meet baking-curing, can meet ambient cure again.
Embodiment
Embodiment 1:
By the ZJ-101 epoxy modified acrylic resin that 29.15kg Suzhou City Sheng Jia resin company limited produces, the MP200 hydrocarbon liquid petroleum resin produced with 4.83kg Shanghai Ou Sheng Chemical Co., Ltd., the BYK-9077 type auxiliary agent that 2.52kg Guangzhou Yi Tong macromolecular material company limited produces, and the mixing of 39.86kg toluene, be uniformly dispersed, be incorporated to 3.53kg carbon black and 10.62kg zinc oxide again, disperse through high speed shear, then disperse through the sand milling closed process degree of depth, allotment lacquering, the base-material namely described in literary composition.
By the bottom surface of above-mentioned preparation unification single coating paint base-material, mix with 9.49kgN-3390BA type tripolymer isocyanate curing agent and stir, be adjusted to working viscosity in right amount with thinner toluene again and (add the number of thinner, different according to temperature, regulated voluntarily by workmen), then at normal temperatures, construction application is carried out to excavator baseboard material, adopt the mode of manual brushing, the direct coating one coat (final thickness of coat, requirement according to each test experiments following is determined), place half an hour at normal temperatures, paint film finish-drying, without bubbling.
After testing: its effective anticorrosion phase can reach more than 5 years, meets the requirement of energy-saving consumption-reducing in national Eleventh Five-Year Plan completely;
Product carried out the test of resistance to neutral salt spray, after 1500h experimental test, paint film is non-foaming, non-corrosive, do not ftracture, do not come off;
And coating can be used in-40 DEG C ~ 160 DEG C temperature ranges, coating without coming off, nondiscoloration, temperature tolerance, strong adaptability;
Product is according to the testing requirement of GB/T1768-2006 " the mensuration rotation rubber emery wheel method of paint and varnish wear resistance ", and test wear resistance, meets 750g/500r≤50mg;
Hit in performance at anti-stone, product after tested 80 ~ 120 μm of anti-stones hits 1bar≤2 grade, 21bar≤4 grade;
In weathering resistance, product through artificial weathering test, 1000h(Q-UVA340) test piece loss of gloss 1 grade, variable color 1 grade, without efflorescence, paint film is non-foaming, non-corrosive, do not ftracture, do not come off.
In the drying room of 80 DEG C, with above-mentioned identical technique, carry out construction application, directly apply one coat to excavator baseboard material, in this drying room, through in half an hour, paint film finish-drying, without bubbling.Through above various performance test, also all qualified.
Embodiment 2:
By the ZJ-103 epoxy modified acrylic resin that 31.10kg Suzhou City Sheng Jia resin company limited produces, the MP200 hydrocarbon liquid petroleum resin produced with 4.1kg Shanghai Ou Sheng Chemical Co., Ltd., the BYK-9077 type auxiliary agent that 3kg Guangzhou Yi Tong macromolecular material company limited produces, and the mixing of 34.1kg dimethylbenzene, be uniformly dispersed, be incorporated to 8kg rutile titanium dioxide and 9.6kg aluminum oxide again, disperse through high speed shear, then disperse through the sand milling closed process degree of depth, allotment lacquering, the base-material namely described in literary composition.
By the bottom surface of above-mentioned preparation unification single coating paint base-material, mix with 10.1kgN-3390BA type tripolymer isocyanate curing agent and stir, be adjusted to working viscosity in right amount with thinner dimethylbenzene again and (add the number of thinner, different according to temperature, regulated voluntarily by workmen), then at normal temperatures, construction application is carried out to excavator baseboard material, adopt conventional spraying method, the direct coating one coat (final thickness of coat, requirement according to each test experiments following is determined), place half an hour at normal temperatures, paint film finish-drying, without bubbling.
After testing: its effective anticorrosion phase can reach more than 5 years, meets the requirement of energy-saving consumption-reducing in national Eleventh Five-Year Plan completely;
Product carried out the test of resistance to neutral salt spray, after 1500h experimental test, paint film is non-foaming, non-corrosive, do not ftracture, do not come off;
And coating can be used in-40 DEG C ~ 160 DEG C temperature ranges, coating without coming off, nondiscoloration, temperature tolerance, strong adaptability;
Product is according to the testing requirement of GB/T1768-2006 " the mensuration rotation rubber emery wheel method of paint and varnish wear resistance ", and test wear resistance can meet 750g/500r≤50mg;
Hit in performance at anti-stone, product after tested 80 ~ 120 μm of anti-stones hits 1bar≤2 grade, 21bar≤4 grade;
In weathering resistance, product through artificial weathering test, 1000h(Q-UVA340) test piece loss of gloss 1 grade, variable color 1 grade, without efflorescence, paint film is non-foaming, non-corrosive, do not ftracture, do not come off.
In the drying room of 80 DEG C, with above-mentioned identical technique, carry out construction application, directly apply one coat to excavator baseboard material, in this drying room, through in half an hour, paint film finish-drying, without bubbling.Through above various performance test, also all qualified.
Embodiment 3:
Is added some points in 33.06kg Suzhou Chemical Co., Ltd. produce AP-6102 epoxy modified acrylic resin, the MP200 hydrocarbon liquid petroleum resin produced with 3.35kg Shanghai Ou Sheng Chemical Co., Ltd., the BYK-9077 type auxiliary agent that 3.42kg Guangzhou Yi Tong macromolecular material company limited produces, and the mixing of 28.25kg vinyl acetic monomer, be uniformly dispersed, be incorporated to 12.56kg carbon black and 8.59kg zinc phosphate again, disperse through high speed shear, then disperse through the sand milling closed process degree of depth, allotment lacquering, the base-material namely described in literary composition.
By the bottom surface of above-mentioned preparation unification single coating paint base-material, mix with 10.77kgN-3390BA type tripolymer isocyanate curing agent and stir, be adjusted to working viscosity in right amount with thinner vinyl acetic monomer again and (add the number of thinner, different according to temperature, regulated voluntarily by workmen), then at normal temperatures, construction application is carried out to excavator baseboard material, adopt conventional rolling process, the direct coating one coat (final thickness of coat, requirement according to each test experiments following is determined), place half an hour at normal temperatures, paint film finish-drying, without bubbling.
After testing: its effective anticorrosion phase can reach more than 5 years, meets the requirement of energy-saving consumption-reducing in national Eleventh Five-Year Plan completely;
Product carried out the test of resistance to neutral salt spray, after 1500h experimental test, paint film is non-foaming, non-corrosive, do not ftracture, do not come off;
And coating can be used in-40 DEG C ~ 160 DEG C temperature ranges, coating without coming off, nondiscoloration, temperature tolerance, strong adaptability;
Product is according to the testing requirement of GB/T1768-2006 " the mensuration rotation rubber emery wheel method of paint and varnish wear resistance ", and test wear resistance can meet 750g/500r≤50mg;
Hit in performance at anti-stone, product after tested 80 ~ 120 μm of anti-stones hits 1bar≤2 grade, 21bar≤4 grade;
In weathering resistance, product through artificial weathering test, 1000h(Q-UVA340) test piece loss of gloss 1 grade, variable color 1 grade, without efflorescence, paint film is non-foaming, non-corrosive, do not ftracture, do not come off.
In the drying room of 80 DEG C, with above-mentioned identical technique, carry out construction application, directly apply one coat to excavator baseboard material, in this drying room, through in half an hour, paint film finish-drying, without bubbling.Through above various performance test, also all qualified.
Certainly, those skilled in the art in the art will be appreciated that, above-described embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, the conversion of above-described embodiment, modification all will be dropped in the scope of the claims in the present invention.