CN102051114B - Rubber substrate base coat and preparation method thereof - Google Patents
Rubber substrate base coat and preparation method thereof Download PDFInfo
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- CN102051114B CN102051114B CN2010106063218A CN201010606321A CN102051114B CN 102051114 B CN102051114 B CN 102051114B CN 2010106063218 A CN2010106063218 A CN 2010106063218A CN 201010606321 A CN201010606321 A CN 201010606321A CN 102051114 B CN102051114 B CN 102051114B
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 80
- 239000005060 rubber Substances 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title claims description 17
- 239000000758 substrate Substances 0.000 title abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000002904 solvent Substances 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 34
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 33
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 33
- 229920000570 polyether Polymers 0.000 claims abstract description 33
- 239000012948 isocyanate Substances 0.000 claims abstract description 19
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 19
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 31
- 239000003973 paint Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 14
- 238000009775 high-speed stirring Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 14
- -1 ammonia ester Chemical class 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000004970 Chain extender Substances 0.000 claims description 2
- 239000004902 Softening Agent Substances 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000000080 wetting agent Substances 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 239000002075 main ingredient Substances 0.000 abstract 2
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 26
- 238000000576 coating method Methods 0.000 description 26
- 150000002148 esters Chemical class 0.000 description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000011527 polyurethane coating Substances 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 229920002449 FKM Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 241000341871 Taraxacum kok-saghyz Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000176 photostabilization Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to a rubber substrate base coat, which belongs to solvent type double-filling polyurethane. The rubber substrate base coat comprises a component A and a component B. The component A is polyurethane prepolymer which comprises the following main ingredients in percentage by weight: 5 to 30 percent of polyether glycol, 5 to 30 percent of polyester polyol, 8 to 50 percent of isocyanate polymer, 5 to 20 percent of filler, 0.5 to 5 percent of aid and 10 to 70 percent of solvent; and the component B is a curing agent which comprises the following main ingredients in percentage by weight: 10 to 50 percent of polyether glycol, 10 to 50 percent of polyester polyol, 5 to 20 percent of filler, 1 to 20 percent of aid and 10 to 70 percent of solvent.
Description
Technical field
The present invention relates to a kind of coating manufacture craft, be specifically related to a kind of rubber ground primary coat and preparation method thereof.
Background technology
Along with the development of rubber industry, rubber item is the main viton such as X 050, butyronitrile rubber, butyl rubber, ethylene-propylene rubber(EPR), Zylox that expand to by tree elastomer.Tree elastomer is from plants such as rubber tree, russian dandelion, to extract the colloid post-treatment to process; Viton is then got through polyreaction by various monomers.Rubber item is widely used in industry or life each side.Along with The development in society and economy, people require also increasingly high to various specific functions such as the use properties of rubber item, protective value, decorate properties.Coating can be given rubber item kinds of surface performance, and the protection rubber surface plays good decoration and protection effect not by aging.And coating can be given rubber item shades of colour and gloss (and than the direct painted economy of rubber many) as requested, also can protect rubber item to avoid ultraviolet irradiation, reduces agingly, increases the service life, and obtains good economy and environmental benefit.The most important thing is that coating can give rubber item flame retardant properties, solvent resistance, electrostatic conductive performance etc.
Because elastomeric material is the macromolecular elastomer material of non-crystalline type, the influence of coating and coating decoration is mainly reflected in the following aspects: (1) surface tension is little.The genus hevea non-polar material, tension force is little.(2) be prone to swelling or dissolving.Rubber is met most of organic solvents or oils, and swelling or dissolution phenomena are all arranged.Therefore in the coating application process,, cause coating shedding because the string stress that produces after swelling and the solvent evaporates has caused a series of coating defects.(3) Young's modulus is big.Rubber produces deformation (mainly being compression set and tensile deformation), thereby produces corresponding stress as elastomerics after receiving external force.Therefore effectively the Young's modulus of coating must be that Young's modulus with the rubber ground is complementary, otherwise the stress that in deformation process, produces will destroy adhering to of coating.(4) resistance is big.Its resistance of chemical structure decision of rubber is very big, has the very strong static behaviour that rises.
Because rubber self characteristics; Rubber not only requires it that rubber is had good sticking power with coating; Also require it to adapt to and change bigger Young's modulus, Young's modulus can change with kind, thinization degree, filler and the supporting material consumption of rubber are different, and therefore being used for supporting coating specific elongation rate must match with it; Otherwise when causing rubber deformation owing to reasons such as bump, compression, stretchings, the internal stress of generation can cause coating cracking, come off.
Because technical reason, present most of rubber items do not adopt coating to decorate and protect.The dynamics of rubber ground tailor-made paint research and development is little, and kind is also less relatively.Mainly by chlorinated rubber class, esters of acrylic acid, polyethylene kind etc.
1) chlorinated rubber class priming paint
The chlorinated rubber class priming paint of domestic production mainly with tetracol phenixin as solvent; According to the damage the ozone layer environment protection pact of material control protocol (Montreal Protocol on Substances that DepletetheOzone Layer) signature of Montreal, tetracol phenixin has caused earth's ozone layer and has worsened and infringement.And chlorinated rubber class priming paint has shortcomings such as non-refractory (being no more than 60 ℃), poor solvent resistance, cost height, execution conditions harshness, brings certain restriction to use.
2) esters of acrylic acid
Esters of acrylic acid coating is to have developed the new variety of coating rapidly since 1950's; Because of the main absorption peak of vinyl resin to light is in outside the solar spectrum scope; So the coating of processing with it has good photostabilization and anti-outdoor aging performance, and drying varniss is fast, sticking power is good; Thermotolerance, erosion resistance are good, also can be in the application down of low temperature condition.Shortcoming is that cost is high, and the paint film elongation is low, snappiness is poor slightly, and receives the restriction of environment protection condition, and starting material have certain toxicity, and the Development Technology of coating new variety has certain difficulty.
3) polyethylene kind
Price is lower and have various superior performances because raw material resources is abundant for polyethylene kind coating: anti-marquis, resistance to chemical attack, water-fast, electrical isolation, mildew-resistant,, uninflammability and snappiness, so purposes is very extensive.But following shortcoming is arranged itself: thermo-labile, the protection against corrosion system of being limited in scope, solvent discharge slow, poor adhesive force.Independent vinyl chloride resin coating is very poor to the sticking power on various surfaces, has added various modifier modifications during the system lacquer, and sticking power increases; But properties-correcting agent can not be added; Paint film adhesion is not fine behind the air dry, like surface treatment or construction wrong, can produce whole the disadvantage of peeling off.This has also limited the utilization on the rubber ground.
Summary of the invention
The present invention has overcome the deficiency of prior art, has proposed rubber ground primary coat and preparation method thereof, the present invention provide a kind of can be on rubber item (except the Zylox) general primary coat and preparation method thereof; Can reduce cost of manufacture; Improve the decorative appearance of rubber item, the protection rubber item increases the service life; Can obtain good economic benefit and environmental benefit, improve other performances of rubber item.
Technical scheme of the present invention is: the primary coat of a kind of rubber ground; Be the two can urethane of solvent-borne type; Comprise A component and B component; Said A component is a polyurethane prepolymer; Staple is polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent and solvent, and by weight percentage, 0.5-5%, the solvent that 5-20%, the auxiliary agent that 8-50%, the filler that 5-30%, the isocyanate polymer that 5-30%, the polyester polyol that polyether glycol accounts for the A component accounts for the A component accounts for the A component accounts for the A component accounts for the A component accounts for the 10-70% of A component; The B component is a solidifying agent; Staple is polyether glycol, polyester polyol resin, filler, auxiliary agent and solvent; By weight percentage, the polyether glycol 10-50%, the polyester polyol that account for the B component 10-50%, the filler that account for the B component 5-20%, the auxiliary agent that account for the B component 1-20%, the solvent that account for the B component accounts for the 10-70% of B component.
The above-mentioned primary coat of rubber ground, its polyether glycol and polyester polyol water cut≤0.05%.
Above-mentioned rubber ground primary coat, its filler are one or more of lime carbonate, talcum powder, wollastonite powder, permanent white, kaolin, mica powder.
Above-mentioned rubber ground primary coat, its solvent belong to the environmental protection kind solvent of low VOC, are ammonia ester level solvent, comprise one or more of ketone, ester class, arene, pure ethers, halogenated hydrocarbon, amides, cyclic ethers class.
Above-mentioned rubber ground primary coat, its auxiliary agent comprise one or more of catalyzer, water-removal additive, chainextender, flow agent, wetting agent, skimmer, softening agent, reactive thinner.
Prepare the special-purpose primary coat of above-mentioned rubber ground, may further comprise the steps:
(1) synthetic A part polyurethane prepolymer:
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 5-30%, polyester polyol 5-30%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 8-50% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 5-20%, auxiliary agent 0.5-5%, solvent 10-70%; Stir the back discharging, the A component.
(2) preparation B component:
Polyether glycol 10-50%, polyester polyol 10-50%, filler 5-20%, auxiliary agent 1-20%, solvent 10-70% are mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint:
A, B two components were mixed according to weight ratio in 2: 1～1: 2, after high-speed stirring mixes, the primary coat of rubber ground.
The present invention has following beneficial effect:
(1) some kind (like chlorinated rubber class, polyethylene kind) defencive function is good ornamental poor in the coating, some kind (like esters of acrylic acid) defencive function difference good decorative property, and polyurethane coating has protection and decoration functions concurrently.
(2) paint film adhesion is strong.Urethane is the same with epoxy, and multiple object plane (metal, timber, rubber, concrete, paper, some plastics etc.) is all had good sticking power.And for rubber then polyurethane coating surpass epoxy coating.
(3) elasticity of paint film can be regulated as required, and to utmost point softish coating, and chlorinated rubber class, esters of acrylic acid, polyethylene kind etc. can only be processed the inflexible coating, are difficult to give snappiness from extremely hard coating.
(4) can be at hyperthermia drying, also can be in low-temperature curing.Chlorinated rubber class, esters of acrylic acid, polyethylene kind coating exist dryness slowly or the phenomenon of not doing in being lower than 10 ℃ environment, even but polyurethane coating also can normally solidify at 0 ℃, therefore the season of construction is long.
(5) can be made into anti--40 ℃ of cryogenic kinds, also can be made into resistant to elevated temperatures insullac.
(6) can be made into variforms such as solvent-borne type, no-solvent type, water-based, powder, satisfy different application modes.
Embodiment
Further specify below in conjunction with embodiment.
Embodiment 1
The special-purpose primary coat of the rubber ground of present embodiment, effective to the ground of cis-1,4-polybutadiene rubber.The special-purpose primary coat of the rubber ground of preparation present embodiment may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 30%, polyester polyol 5%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 8% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 6.2%, auxiliary agent 0.8%, solvent 50%; Stir the back discharging, the A component.
(2) preparation B component
Polyether glycol 8%, polyester polyol 8%, filler 13%, auxiliary agent 1%, solvent 70% mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint
A, B two components are mixed according to weight ratio at 1: 1, mix through high-speed stirring, the primary coat of rubber ground.
Table one: the performance test behind the supporting finish paint of rubber primary coat
Embodiment 2
The special-purpose primary coat of the rubber ground of present embodiment, effective to the ground of butyronitrile rubber, the special-purpose primary coat of the rubber ground of preparation present embodiment may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 30%, polyester polyol 20%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 20% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 18%, auxiliary agent 2%, solvent 10%; Stir the back discharging, the A component.
(2) preparation B component
Polyether glycol 25%, polyester polyol 10%, filler 13%, auxiliary agent 2%, solvent 50% mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint
A, B two components are mixed according to weight ratio at 1: 1.5, after high-speed stirring mixes, the primary coat of rubber ground.
Embodiment 3
The special-purpose primary coat of the rubber ground of present embodiment, effective to the ground of tree elastomer, the special-purpose primary coat of the rubber ground of preparation present embodiment may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 10%, polyester polyol 25%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 30% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 6.5%, auxiliary agent 0.5%, solvent 28%; Stir the back discharging, the A component.
(2) preparation B component
Polyether glycol 15%, polyester polyol 35%, filler 5%, auxiliary agent 5%, solvent 40% mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint
A, B two components are mixed according to weight ratio at 1: 1.2, mix through high-speed stirring, the primary coat of rubber ground.
Table two: the performance test behind the supporting finish paint of rubber primary coat
Embodiment 4
The special-purpose primary coat of the rubber ground of present embodiment, effective to the ground of styrene-butadiene rubber(SBR), the special-purpose primary coat of the rubber ground of preparation present embodiment may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 15%, polyester polyol 5%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 25% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 18%, auxiliary agent 1%, solvent 36%; Stir the back discharging, the A component.
(2) preparation B component
Polyether glycol 25%, polyester polyol 25%, filler 12%, auxiliary agent 8%, solvent 30% mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint
A, B two components are mixed according to weight ratio at 1: 1, after high-speed stirring mixes, the primary coat of rubber ground.
Embodiment 5
The special-purpose primary coat of the rubber ground of present embodiment, effective to the ground of ethylene-propylene rubber(EPR), the special-purpose primary coat of the rubber ground of preparation present embodiment may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater.In the there-necked flask that whisking appliance, TM are housed, add polyether glycol 5%, polyester polyol 15%, stir and be warming up to 50-60 ℃, slowly add isocyanate polymer 45% through dehydration; Be warming up to 75-85 ℃ of reaction 2-3h; With after 1h sampling analysis NCO, when reaching when stablizing, NCO lowers the temperature, add filler 12%, auxiliary agent 3%, solvent 20%; Stir the back discharging, the A component.
(2) preparation B component
Polyether glycol 35%, polyester polyol 25%, filler 20%, auxiliary agent 10%, solvent 10% mixed, discharging after high-speed stirring mixes, the B component.
(3) film forming and paint
A, B two components are mixed according to weight ratio at 1.5: 1, mix through high-speed stirring, the primary coat of rubber ground.
Table three: the performance test behind the supporting finish paint of rubber primary coat
The above only is preferred embodiment of the present invention, is not to be that the present invention is done other forms of restriction, and any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But everyly do not break away from technical scheme content of the present invention, to any simple modification, equivalent variations or remodeling that above embodiment did, still belong to the protection domain of technical scheme of the present invention according to technical spirit of the present invention.
Claims (6)
1. rubber ground primary coat; Be the two can urethane of solvent-borne type; It is characterized in that: comprise A component and B component; Said A component is a polyurethane prepolymer; Staple is polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent and solvent, and by weight percentage, 0.5-5%, the solvent that 5-20%, the auxiliary agent that 8-50%, the filler that 5-30%, the isocyanate polymer that 5-30%, the polyester polyol that polyether glycol accounts for the A component accounts for the A component accounts for the A component accounts for the A component accounts for the A component accounts for the 10-70% of A component; The B component is a solidifying agent; Staple is polyether glycol, polyester polyol resin, filler, auxiliary agent and solvent; By weight percentage, the polyether glycol 10-50%, the polyester polyol resin that account for the B component 10-50%, the filler that account for the B component 5-20%, the auxiliary agent that account for the B component 1-20%, the solvent that account for the B component accounts for the 10-70% of B component.
2. rubber ground according to claim 1 primary coat is characterized in that: said polyether glycol water cut is not more than 0.05% by mass percentage, and the polyester polyol water cut is not more than 0.05% by mass percentage.
3. rubber ground according to claim 1 primary coat is characterized in that: said filler is one or more of lime carbonate, talcum powder, wollastonite powder, permanent white, kaolin, mica powder.
4. rubber ground according to claim 1 primary coat is characterized in that: said solvent is an ammonia ester level solvent.
5. rubber ground according to claim 1 primary coat is characterized in that: said auxiliary agent is one or more of catalyzer, water-removal additive, chainextender, flow agent, wetting agent, skimmer, softening agent, reactive thinner.
6. method of making rubber ground according to claim 1 primary coat may further comprise the steps:
(1) synthetic A part polyurethane prepolymer
Raw material is comprised that polyether glycol, polyester polyol, isocyanate polymer, filler, auxiliary agent heat to vacuumize in advance to dewater; In the there-necked flask that whisking appliance, TM are housed, adding weight ratio that polyether glycol through dehydration accounts for the A component and be the weight ratio that 5-30%, polyester polyol account for the A component is 5-30%; Stirring is warming up to 50-60 ℃; The weight ratio that slow adding isocyanate polymer accounts for the A component is 8-50%, is warming up to 75-85 ℃ of reaction 2-3h, together after 1h sampling analysis NCO; When reaching when stablizing, NCO lowers the temperature; Adding weight ratio that filler accounts for the A component and be weight ratio that 5-20%, auxiliary agent account for the A component and be the weight ratio that 0.5-5%, solvent account for the A component is 10-70%, the back discharging that stirs, the A component;
(2) preparation B component
The weight ratio that polyether glycol is accounted for the B component is that weight ratio that 10-50%, polyester polyol resin account for the B component is that weight ratio that 10-50%, filler account for the B component is that weight ratio that 5-20%, auxiliary agent account for the B component is that the weight ratio that 1-20%, solvent account for the B component is that 10-70% mixes; Discharging after high-speed stirring mixes, the B component;
(3) film forming and paint
A, B two components were mixed according to weight ratio in 2: 1～1: 2, after high-speed stirring mixes, the primary coat of rubber ground.
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| CN105505181A (en) * | 2016-01-11 | 2016-04-20 | 北京紫禁城漆业有限公司 | High-weather-resistant elastic paint applied to rubber |
| CN106010217A (en) * | 2016-07-30 | 2016-10-12 | 淄博德信联邦化学工业有限公司 | Preparation method of epoxy floor paint |
| CN110591533B (en) * | 2019-10-11 | 2021-05-25 | 汕头市鑫源化工科技有限公司 | Environment-friendly laminating coating composition and preparation method thereof |
| CN112795292B (en) * | 2020-12-30 | 2022-02-11 | 山东一诺威聚氨酯股份有限公司 | Ultrahigh-latitude two-component polyurethane base coat and preparation method thereof |
| CN115572570B (en) * | 2021-12-23 | 2024-02-20 | 山西天启通液压有限公司 | Rubber protection coating film and preparation method thereof |
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| CN101220241A (en) * | 2007-12-19 | 2008-07-16 | 上海台安工程实业有限公司 | Double-component high-strength polyurethane waterproof coating material |
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