CN107641445A - A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof - Google Patents
A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof Download PDFInfo
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- CN107641445A CN107641445A CN201710883787.4A CN201710883787A CN107641445A CN 107641445 A CN107641445 A CN 107641445A CN 201710883787 A CN201710883787 A CN 201710883787A CN 107641445 A CN107641445 A CN 107641445A
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Abstract
The present invention relates to paint field, a kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof is provided, the shop primer Corrosion Protection that solves prior art is low, construction VOC content is high and solves the defects of scattered and stability difference of the graphene in coating, it is made up of host and curing agent, the host is made up of each raw material of following parts by weight：6~20 parts of water-base resin, 1~10 part of cosolvent, 0.3~1 part of dispersant, 0.3~1 part of defoamer, 0.1~0.4 part of graphene, 20~50 parts of filler, 20~75 parts of zinc powder, 0.5~1 part of thickener, 0.1~5 part of water；The curing agent is made up of each raw material of following parts by weight：50~80 parts of low viscosity isocyanate resin, 1~10 part of coupling agent, 0.1~40 part of cosolvent.
Description
Technical field
The present invention relates to paint field, more particularly to a kind of fast-drying aqueous zinc powder of ultra high solids part being modified based on graphene
Shop primer and preparation method thereof.
Background technology
Shop primer is a kind of steeis pretreament priming paint, and rate of drying is fast, can meet streamline fly-cutting and Welder
Skill, thus it is widely used in provisional protection and the maintenance of the manufacturing steel such as container, ship, steel construction, its effect is
Zinc powder delays the corrosion of steel as anode release electronics when corrosion occurs.Such as container industry, according to existing coating specification,
Zinc content ＞ 80% in used shop primer, 5~10 microns of its thickness of dry film possess good short-term corrosion prevention and (accomplish 10
The protection of it or so, meet case factory process conditions), when coating zinc content is high, coating protection cycle stretch-out, but cut and weld
When the increase of poisonous zinc fog dust dirt, pollute environment, damage the health of operating personnel；Guard time when coating zinc content is relatively low
Shorten, poisonous zinc fog dust dirt is also accordingly reduced when cutting and welding.
To reduce zinc powder dosage in shop primer, the VOC emission under Construction State is reduced, is reduced poisonous when cutting and welding
Zinc fog dust dirt produces, and has carried out substantial amounts of research work both at home and abroad, such as adds ferrophosphorus powder, talcum powder, silicon powder, mica wherein
The fillers such as powder, calcium carbonate, trbasic zinc phosphate, but as the reduction of zinc powder dosage, its antiseptic property are inevitably affected, scumbling
When risk in the presence of serious corrosion and substantial amounts of VOC emission.Research has shown that graphene because having excellent conduction and shielding
It can be applied to zinc powder shop primer as material modified, to reduce zinc powder dosage, improve Corrosion Protection, use in addition
95% water-base resin contained admittedly reduces VOC discharge in the case of equal working viscosity.At present, domestic graphene is applied to workshop
The rare document report of research of priming paint, does not have document report especially, without production in the water-based system of ultra high solids part quick-drying yet
Product large-scale production and application.
The content of the invention
Therefore, for above content, the present invention provides a kind of fast-drying aqueous zinc of ultra high solids part being modified based on graphene
Powder shop primer and preparation method thereof, the shop primer Corrosion Protection that solves prior art is low, construction VOC content is high and solution
Certainly the defects of scattered and stability difference of the graphene in coating.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：It is a kind of to be surpassed based on what graphene was modified
The fast-drying aqueous zinc powder shop primer of high solid, is made up of host and curing agent, the host by following parts by weight each raw material
Composition：
The curing agent is made up of each raw material of following parts by weight：
Further improving is：The water-base resin is for aqueous epoxy resins, the aqueous polyester resin of hydroxyl or containing ammonia
The resin of base any one or it is two or more with any mixture than mixing, it is 95% that the liquid resin is solid, which to be contained, viscosity
Less than 3000mpa.
Further improving is：A diameter of 5~30 microns of the graphene sheet layer, the number of plies≤10 layer, oxygen content is less than
30%.
Further improving is：The dispersant is one or more kinds of with any amino-containeds than mixing or carboxyl
High-molecular block copolymer, its effect are the graphenes in scattered and stable coating.
Further improving is：The thickener is organobentonite, aerosil, modified urea solution or nonionic
Any one in association type polyurethane solutions or the two or more mixtures with any ratio mixing.
Further improving is：The defoamer is any one of polymethyl siloxane, acrylic polymer mixture
It is or two or more with any mixture than mixing.
Further improving is：The filler is any one in silicon powder, silica flour or ferrophosphorus powder or two or more
With any mixture than mixing, it is compactness and the shielding action for improving coating that it, which is acted on,.
Further improving is：The coupling agent is epoxy silane coupling, and it is to increase film in hygrometric state that it, which is acted on,
Adhesive force.
A kind of preparation method for the fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, including to master
Agent and the preparation of curing agent, the preparation process of the host are：(1) following material is prepared：6~20 parts of water-base resin, cosolvent 1
~10 parts, 0.3~1 part of dispersant, 0.3~1 part of defoamer, 20~50 parts of filler, 20~75 parts of zinc powder, thickener 0.5~1
Part, 0.1~0.4 part of graphene；(2) water-base resin, cosolvent, dispersant, defoamer are added in a mixing bowl in order, stirring
Graphene is slowly uniformly added into down, is uniformly dispersed at a high speed；(3) above material is ground using grinder, fineness of grind≤
20 microns, obtain graphene dispersion body；(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed,
Control in 300~500r/min, other coating are added portionwise and stir, are stirred 30 minutes after adding；(5) product is entered
Row detection, qualified rear filtering, packaging are detected, filter screen mesh number is 120 mesh；The preparation process of the curing agent is：(1) prepare
Following material：50~100 parts of low viscosity isocyanate resin, 0~50 part of cosolvent.；(2) in order by low viscosity isocyanates
Resin, cosolvent are added in a mixing bowl, are stirred.
By using preceding solution, the beneficial effects of the invention are as follows：The superelevation being modified based on graphene of the present invention
The fast-drying aqueous zinc powder shop primer of solid part, the coating is in zinc content 40%, 5~10 microns of thickness of dry film, and protection is reachable
By 10 days or so, its Corrosion Protection surmounted high zinc content shop primer, improved zinc powder utilization rate, had when reducing cutting and welding
The generation of evil zinc mist, while there is good bin stability and high-speed cutting and welding performance, construction VOC content is less than
200g/L, VOC content is low, and rate of drying is fast, solves the problems, such as water paint construction flash rusting.
Embodiment
Embodiments of the present invention are described in detail below with reference to specific embodiment, and how skill is applied to the present invention whereby
Art means solve technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.
Unless otherwise specified, the conventional hand that the technological means employed in embodiment is well known to those skilled in the art
Section, used reagent and product are also available commercial.The source of agents useful for same, trade name and it is necessary to list it
Constituent person, indicate on the first appearance.
Embodiment one
A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, by host and curing agent group
Into the host is made up of each raw material of following parts by weight：It is less than Gu containing for 95% (calculated in weight percent), viscosity
6 parts of 3000mpa aqueous epoxy resins, 1 part of cosolvent, 0.3 part of the high-molecular block copolymer of amino-contained, methyl polysilicone
0.3 part of alkane, a diameter of 5 microns of lamella, the number of plies=5 layer, 0.1 part of the graphene of oxygen content=25%, 20 parts of silicon powder, zinc powder 20
Part, 0.5 part of organobentonite, 0.1 part of water；
The curing agent is made up of each raw material of following parts by weight：50 parts of low viscosity isocyanate resin, epoxy radicals silicone hydride
10 parts of coupling agent, 40 parts of cosolvent；The dispersant effect is the graphene in scattered and stable coating；The silicon powder effect
It is compactness and the shielding action for improving coating；The effect of the epoxy silane coupling is that increase film is attached in hygrometric state
Put forth effort.
Its preparation method, including the preparation to host and curing agent, the preparation process of the host are：(1) prepare as follows
Material：6 parts of aqueous epoxy resins, 1 part of cosolvent, 0.3 part of high-molecular block copolymer, the polymethyl siloxane 0.3 of amino-contained
Part, 20 parts of filler, 20 parts of zinc powder, 0.5 part of organobentonite, 0.1 part of graphene；(2) in order by aqueous epoxy resins, hydrotropy
Agent, the high-molecular block copolymer of amino-contained, polymethyl siloxane are added in a mixing bowl, and graphite is slowly uniformly added under stirring
Alkene, it is uniformly dispersed at a high speed；(3) above material is ground using grinder, fineness of grind=20 micron, obtains graphene point
Granular media；(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, controlled in 300r/min, in batches
Add other coating to stir, stirred 30 minutes after adding；(5) product is detected, detects qualified rear filtering, bag
Dress, filter screen mesh number is 120 mesh；The preparation process of the curing agent is：(1) following material is prepared：Low viscosity isocyanates
50 parts of resin, 40 parts of cosolvent, 10 parts of epoxy silane coupling.(2) in order by low viscosity isocyanate resin, cosolvent
Add in a mixing bowl, stir.
Embodiment two
A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, by host and curing agent group
Into the host is made up of each raw material of following parts by weight：Gu containing the water-based of the hydroxyl for being less than 3000mpa for 95%, viscosity
13 parts of polyester resin, 5 parts of cosolvent, carboxylic 0.6 part of high-molecular block copolymer dispersant, acrylate copolymer defoamer
0.7 part, a diameter of 18 microns of lamella, the number of plies=3 layer, 0.3 part of the graphene of oxygen content=20%, 35 parts of silica flour, zinc powder 40
Part, 0.7 part of aerosil thickener, 2 parts of water；The curing agent is made up of each raw material of following parts by weight：Low viscosity is different
60 parts of cyanate ester resin, 5 parts of epoxy silane coupling, 35 parts of cosolvent；The work of the high-molecular block copolymer of the carboxyl
With being graphene in scattered and stable coating；The effect of the silica flour is to improve compactness and the shielding action of coating；Institute
The effect for stating epoxy silane coupling is the adhesive force for increasing film in hygrometric state.
Its preparation method, including the preparation to host and curing agent, the preparation process of the host are：(1) prepare as follows
Material：0.6 part of 5 parts of 13 parts of aqueous polyester resin, cosolvent, carboxylic high-molecular block copolymer, the acrylic acid of hydroxyl
0.7 part of polymer, 35 parts of silica flour, 40 parts of zinc powder, 0.7 part of aerosil, 0.3 part of graphene；(2) in order will be water-based
Resin, cosolvent, carboxylic high-molecular block copolymer, acrylate copolymer are added in a mixing bowl, are stirred lower slowly uniform
Graphene is added, is uniformly dispersed at a high speed；(3) above material is ground using grinder, fineness of grind≤20 micron, obtained
Graphene dispersion body；(4) the graphene dispersion body after grinding is added in a mixing bowl, opens stirring at low speed, control 300~
500r/min, other coating are added portionwise and stir, stirred 30 minutes after adding；(5) product is detected, detected
Filtering, packaging after qualified, filter screen mesh number is 120 mesh；The preparation process of the curing agent is：(1) following material is prepared：It is low
60 parts of viscosity isocyanate resin, 35 parts of cosolvent, 5 parts of epoxy silane coupling；(2) in order by low viscosity isocyanates
Resin, cosolvent and epoxy silane coupling are added in a mixing bowl, are stirred.
Embodiment three
A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, by host and curing agent group
Into the host is made up of each raw material of following parts by weight：
Gu containing 20 parts of the resin containing amino for being less than 3000mpa for 95%, viscosity, 10 parts of cosolvent, carboxylic high score
Sub- 1 part of block copolymer, 1 part of acrylate copolymer, a diameter of 30 microns of lamella, the number of plies=10 layer, the stone of oxygen content=28%
Black 0.4 part of alkene, 50 parts of ferrophosphorus powder, 75 parts of zinc powder, 1 part of non-ionic associative type polyurethane solution, 5 parts of water；The curing agent by with
Each raw material composition of lower parts by weight：80 parts of low viscosity isocyanate resin, 10 parts of epoxy silane coupling, 40 parts of cosolvent；
The effect of the carboxylic high-molecular block copolymer dispersant is the graphene in scattered and stable coating；The ferrophosphorus powder
Effect be improve coating compactness and shielding action；The effect of the epoxy silane coupling is increase film in hygrometric state
When adhesive force.
Its preparation method, including the preparation to host and curing agent, the preparation process of the host are：(1) prepare as follows
Material：1 part of 1 part of 10 parts of 20 parts of resin, cosolvent, carboxylic high-molecular block copolymer, acrylate copolymer containing amino,
50 parts of ferrophosphorus powder, 75 parts of zinc powder, 1 part of non-ionic associative type polyurethane solution, 0.4 part of graphene；(2) in order by water-based tree
Fat, cosolvent, dispersant, acrylate copolymer are added in a mixing bowl, and graphene is slowly uniformly added under stirring, scattered equal at a high speed
It is even；(3) above material is ground using grinder, fineness of grind=0 micron, obtains graphene dispersion body；(4) grinding
Graphene dispersion body afterwards is added in a mixing bowl, is opened stirring at low speed, is controlled in 500r/min, other coating are added portionwise and stir
Mix uniformly, stirred 30 minutes after adding；(5) product is detected, detects qualified rear filtering, packaging, sieves mesh
Number is 120 mesh；The preparation process of the curing agent is：(1) following material is prepared：100 parts of low viscosity isocyanate resin, hydrotropy
50 parts of agent, 10 parts of epoxy silane coupling；(2) in order by low viscosity isocyanate resin, cosolvent and epoxy radicals silicone hydride
Coupling agent is added in a mixing bowl, is stirred.
Wherein, the purpose of the present invention can be achieved in each raw material of heretofore described host in following parameter area：Water
6~20 parts of resin of property, 1~10 part of cosolvent, 0.3~1 part of dispersant, 0.3~1 part of defoamer, 0.1~0.4 part of graphene, fill out
20~50 parts of material, 20~75 parts of zinc powder, 0.5~1 part of thickener, 0.1~5 part of water；Each raw material of the curing agent is in following ginseng
The purpose of the present invention can be achieved in number scope：50~80 parts of low viscosity isocyanate resin, 1~10 part of coupling agent, cosolvent
0.1~40 part.
Described in above, only this wound is used using the embodiment of this origination techniques content, any those skilled in the art
Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (9)
- A kind of 1. fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, it is characterised in that：By host and Curing agent is formed, and the host is made up of each raw material of following parts by weight：The curing agent is made up of each raw material of following parts by weight：50~80 parts of low viscosity isocyanate resin1~10 part of coupling agent0.1~40 part of cosolvent.
- 2. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：The water-base resin is any one of aqueous epoxy resins, the aqueous polyester resin of hydroxyl or the resin containing amino Kind or it is two or more with any mixture than mixing, it is 95% that the liquid resin is solid, which to be contained, and viscosity is less than 3000mpa.
- 3. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：A diameter of 5~30 microns of the graphene sheet layer, the number of plies≤10 layer, oxygen content are less than 30%.
- 4. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：The dispersant is copolymerized for one or more kinds of polymer blocks with any amino-contained than mixing or carboxyl Thing, its effect are the graphenes in scattered and stable coating.
- 5. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：The thickener is organobentonite, aerosil, modified urea solution or non-ionic associative type polyurethane solution In any one or it is two or more with it is any than mixing mixture.
- 6. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：The defoamer for polymethyl siloxane, acrylic polymer mixture any one or it is two or more with any Than the mixture of mixing.
- 7. the ultra high solids part fast-drying aqueous zinc powder shop primer according to claim 1 being modified based on graphene, it is special Sign is：The filler is any one or two or more mixing with any ratio mixing in silicon powder, silica flour or ferrophosphorus powder Compound, it is compactness and the shielding action for improving coating that it, which is acted on,.
- 8. the ultra high solids part fast-drying aqueous zinc powder anti-corrosion primer according to claim 1 being modified based on graphene, it is special Sign is：The coupling agent is epoxy silane coupling, and it is the adhesive force for increasing film in hygrometric state that it, which is acted on,.
- 9. a kind of preparation method for the fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene, its feature are existed In：Including the preparation to host and curing agent, the preparation process of the host is：(1) following material is prepared：Water-base resin 6~ 20 parts, 1~10 part of cosolvent, 0.3~1 part of dispersant, 0.3~1 part of defoamer, 20~50 parts of filler, 20~75 parts of zinc powder, increase Thick dose 0.5~1 part, 0.1~0.4 part of graphene；(2) water-base resin, cosolvent, dispersant, defoamer are added and stirred in order Mix in cylinder, graphene is slowly uniformly added under stirring, is uniformly dispersed at a high speed；(3) above material is ground using grinder, Fineness of grind≤20 micron, obtain graphene dispersion body；(4) the graphene dispersion body after grinding is added in a mixing bowl, opened Stirring at low speed is opened, is controlled in 300~500r/min, other coating are added portionwise and stir, is stirred 30 minutes after adding； (5) product is detected, detects qualified rear filtering, packaging, filter screen mesh number is 120 mesh；The preparation step of the curing agent Suddenly it is：(1) following material is prepared：50~100 parts of low viscosity isocyanate resin, 0~50 part of cosolvent.；(2) in order will be low Viscosity isocyanate resin, cosolvent are added in a mixing bowl, are stirred.
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| CN201710883787.4A CN107641445A (en) | 2017-09-26 | 2017-09-26 | A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof |
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| CN201710883787.4A CN107641445A (en) | 2017-09-26 | 2017-09-26 | A kind of fast-drying aqueous zinc powder shop primer of ultra high solids part being modified based on graphene and preparation method thereof |
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Cited By (5)
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| CN108288085A (en) * | 2018-02-09 | 2018-07-17 | 黄唏 | Graphene slurry, preparation method and applications |
| CN108410321A (en) * | 2018-04-03 | 2018-08-17 | 山东七维新材料有限公司 | A kind of water-base epoxy graphene inorganic scale anticorrosive paint |
| CN108690463A (en) * | 2018-05-10 | 2018-10-23 | 河北晨阳工贸集团有限公司 | A kind of graphene epoxy heavy-duty anticorrosive coating and preparation method thereof |
| CN109504266A (en) * | 2018-10-18 | 2019-03-22 | 信和新材料股份有限公司 | A kind of quick-drying no-solvent polyurethane paint and preparation method thereof modified based on bio-based polymers |
| CN110511647A (en) * | 2019-07-25 | 2019-11-29 | 河北晨阳工贸集团有限公司 | A kind of aqueous double-component epoxy anticorrosion primer and preparation method thereof |
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