CN105199531B - A kind of coating process of staircase with aqueous self-drying protective coating and its in wet condition - Google Patents
A kind of coating process of staircase with aqueous self-drying protective coating and its in wet condition Download PDFInfo
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- CN105199531B CN105199531B CN201510663067.8A CN201510663067A CN105199531B CN 105199531 B CN105199531 B CN 105199531B CN 201510663067 A CN201510663067 A CN 201510663067A CN 105199531 B CN105199531 B CN 105199531B
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Abstract
The present invention discloses a kind of staircase aqueous self-drying protective coating, includes the component of following mass distribution ratio：80~100 parts of auto-oxidatively drying waterborne epoxy coatings, swelling type dry 0~20 part of emulsion resin of promotion but are not 0,0.5~2 part of phase stabilization aid, 1~2 part of inhibition auxiliary agent.The invention also discloses the coating process using the coating in wet condition.The coating of the present invention adapts to the production line balance of existing staircase oiliness paint line, realizes quick-drying, anti-flash rusting, disposable thick painting sag resistance and corrosion resistance under wet condition.
Description
Technical field
The present invention relates to a kind of aqueous self-drying protective coating, especially a kind of staircase aqueous self-drying protective coating.This hair
It is bright to further relate to the coating process of staircase aqueous self-drying protective coating in wet condition.
Background technology
After on October 1st, 2015《Volatile organic matter Pollution Charges Site method》After announcement, the environmental consciousness of people
Increasingly strengthen, it is increasingly strict to the regulation to atmospheric environment discharge toxic solvent, replace organic solvent to turn into coating row with water
The inexorable trend of industry development.Aqueous self-drying protective coating is because it is using water as solvent, it is to avoid contain the organic solvent institute bands such as benzene class
The safety problem such as inflammable and explosive come and environmental protection, health problem and increasingly welcome by market.Staircase is a kind of up to number
Ten meters of large-scale workpiece, is welded by different structural members, complicated, is difficult spraying, usually outdoor because volume is excessive
Spray and without baking-curing；Workpiece is often with the floating rust in part before spraying, and conventional electrophoretic painting or robot application can not enter
Row operation, current domestic manufacturer typically mixes gas blowout using high pressure and applied, and disposable spray finishing thickness reaches 60-80 microns, so that simple
Change coating process, reduce production cost, therefore, drying property, resist sagging, the disposable thickness of coating in wet condition are applied,
Single coating corrosion resistance and the anti-flash rusting of ground are respectively provided with higher requirement.Country's staircase application at present is main with solvent-borne type
Alcohol acid system, epoxy systems, based on epoxy-ester system coating, there is serious inflammable and explosive danger, VOC emission is high, has a strong impact on
Spraying workman it is healthy, therefore, staircase application is badly in need of developing to environmental protection, low-carbon direction.
CN 102091688A disclose a kind of coating process of container water paint matching system, teach priming paint spray
The control of painting, the ambient humidity that finish paint spraying is wanted with drying room baking needed and solidification temperature.This invention is in FCL basecoat paint
After the completion of add the baking operation of FCL priming paint, accelerate the volatilization of moisture content, reduce the drying time of water paint, improve
The coating quality of container water paint matching system, adds production efficiency, but this coating process be suitable only for dehumidifier and
The spraying coating line of the excellent condition such as baking-curing, the staircase application poor to application condition is not applied to；CN 101085898A are disclosed
A kind of environment-friendly type normal temperature solidifying water epoxy resin coating and preparation method thereof, water paint of the present invention is two-component
Epoxy coating, waterborne epoxy coatings is prepared using direct emulsification-solidification method, and the water paint thus prepared has excellent property
Energy.But dual-component coating construction pot-life is short, construction is inconvenient, easily causes waste, and increase over time, the property of paint
It can decline comparatively fast, be unfavorable for the application of this large-scale workpiece of staircase.CN 101412791A disclose a kind of epoxy organosilicon phosphoric acid
Ester compound modified acrylic resin, is characterized in by solution polymerization process, epoxy resin, phosphate function monomer, organosilicon
Oxygen alkane and acrylic ester monomer high temperature polymerization in the solution, resin prepared by the method are water-soluble resin, belong to non-swelling
Type resin linear resin, while introducing organosiloxane in formula, it is too high to be easily caused molecular weight, is unfavorable for resin in epoxy-ester
In permeability, and formula in phosphate function monomer it is expensive, be unfavorable for industrialized production.As can be seen here, at present
The water paint coating process or cold curing watersoluble coating of announcement are not all directed under wet environment, the application without baking condition
The aqueous coating formulation of technique and correlation.
The content of the invention
The present invention is difficult to the application of water paint, in humidity for the medium oil coating process of staircase application prior art
Slow, easy flash rusting is dried in the disposable thick painting of water paint under environment, there is provided a kind of staircase aqueous self-drying for the technical problem of easy sagging
Protective coating.
First purpose of the present invention is achieved through the following technical solutions：A kind of staircase aqueous self-drying protective coating,
Include the component of following mass distribution ratio：
80~100 parts of auto-oxidatively drying waterborne epoxy coatings
Swelling type dries 0~20 part of emulsion resin of promotion but is not 0
0.5~2 part of phase stabilization aid
1~2 part of inhibition auxiliary agent.
The auto-oxidatively drying waterborne epoxy coatings is aqueous acrylic modified epoxy ester coating.The coating main component is
Aqueous acrylic modified epoxy ester, antirust color stuffing, auxiliary agent and water.Wherein, the percentage by weight of Main Ingredients and Appearance is aqueous acrylamide
The modified Huan Yang Zhi ﹕ antirust face Tian Liao ﹕ Zhu Ji ﹕ water of acid=（25-35）﹕（30-40）﹕（1-2）﹕（25-35）.The water soluble acrylic acid
Modified epoxy ester is the non-swelling type epoxy-ester of water-soluble linear, and amount of solid content is more than 75%, wherein acrylic acid in resin solid part
Esters monomer content is more than 40%, and antirust color stuffing is titanium dioxide, carbon black and trbasic zinc phosphate, and auxiliary agent is acetylenic diols surfactant.
The swelling type, which is dried, promotes emulsion resin to refer to the acetoacetyl with epoxy phosphate ester group, self-crosslinking structure
The emulsifier-free emulsion polymerization in fusiform of epoxide and two hydrazides groups is acrylic resin modified, and resin outward appearance is light blue the sub-translucent liquid of color
Body, solids content 35%~45%.As one embodiment of the present of invention, the swelling type dries the preparation method for promoting emulsion resin
It is as follows：
(1) preparation of epoxy phosphate ester performed polymer：Take 10~20 parts of epoxy resin 128 and 5~10 parts of n-butanol
Heating stirring is to 110 DEG C, after epoxy resin is completely dissolved, and 0.5~1.0 part of phosphoric acid is added dropwise, and is then refluxed for reacting 2-3h, instead
N-butanol is reclaimed by vacuum distillation after should terminating, epoxy phosphate ester performed polymer is obtained.
(2) 0.25%~0.75% initiator of 2.0~5.0 parts of deionized water dissolving acrylate monomer total amounts is taken, is obtained
To initiator solution.
(3) deionized water of 10.0~15.0 parts of addition, 0.5~1.5 part of emulsifying agent vinyl alkyl in reaction vessel
Then phosphate APEO270, high-speed stirred 15 ~ 25 minutes adds 5.0~10.0 parts of methyl methacrylate and styrene
Compound, 1~5 part of function monomer containing acetoacetoxy groups AAEM, high-speed stirred emulsion dispersion are warming up to 70~100 DEG C, plus
Enter the initiator solution of total amount about 20%, question response system occurs after obvious blue light, is incubated 15 ~ 25 minutes, that is, obtain containing acetoacetyl
The stratum nucleare of epoxide group.
(4) deionized water of 15.0~35.0 parts by weight, 0.5~1.5 part of emulsifying agent are put into reaction vessel, at a high speed
After stirring 20 minutes, 25~30 parts of methyl methacrylate, styrene and methacrylic acid compound, 0.5~2.0 part are contained
Two hydrazides class crosslinking agent ADH and the epoxy phosphate ester performed polymer of step (1) are added in reaction vessel, high speed emulsion dispersion, system
Obtain mix monomer pre-emulsion；Then by 20 sections points of the mix monomer pre-emulsion and the initiator solution of total amount about 50% point
Secondary while instilling in reaction vessel, every section of time for adding control is 0.5h, and insulation 15min, reaction temperature maintains 70~100
DEG C, remaining initiator solvent is eventually adding, then 1~2h is incubated, 60 DEG C are cooled to, is neutralized, filled with 0.5~1.0 part of triethylamine
Divide after stirring, be down to room temperature, filter and package and produce swelling type drying promotion emulsion resin.
The rotating speed of the stirring is 1000 revs/min, and the rotating speed of the emulsion dispersion is 1500-2000 revs/min.
Phase stabilization aid of the present invention is the Pluronic F87 of BASF.
Inhibition auxiliary agent of the present invention is the DA-7012 of heterocyclic organic compound, such as Longhai City's chemical industry.
Second object of the present invention is to provide the preparation method of above-mentioned staircase aqueous self-drying protective coating.
A kind of staircase aqueous self-drying protective coating preparation method, including following step are poly-：
(1) auto-oxidatively drying waterborne epoxy coatings is positioned in high speed dispersor to enter with 500-3500r/min speed
Row is scattered, and temperature control is between 50-60 DEG C；
(2) add swelling type in premix groove and dry and promote emulsion resin, stirred with 1500-2000r/min rotating speed middling speed
Mix, be then slowly added into phase stabilization aid, moderate-speed mixer 20-30 minutes；
(3) uniform emulsion resin is pre-mixed in step (2), it is added in step (1), 1500-2000r/min
Rate Dispersion 20-30 minutes, then adds inhibition auxiliary agent, and stirring is cooled to room temperature after 10 minutes, filters, and produces staircase with aqueous
From dry protective coating.
In the step (1), in dispersion process it is noted that coating not with air contact, it is to avoid oxidation drying causes skinning.
Temperature control is below 45 DEG C in the processing procedure of the step (3).
Third object of the present invention is to provide using above-mentioned staircase aqueous self-drying protective coating in wet condition
Coating process.
A kind of coating process of staircase with aqueous self-drying protective coating in wet condition, it comprises the following steps：
(1) staircase workpiece is subjected to oil removing and grinding process；
(2) staircase aqueous self-drying protective coating dilutes through deionized water, mixed using high pressure in the environment of humidity ventilation
The disposable thickness of gas spray gun is coated on staircase workpiece surface, film normal temperature self-drying.
Staircase after dilution is tested with 25 DEG C of working viscosities of aqueous self-drying protective coating with rotation viscometer, 6 turns of viscosity
Turn for 5000-7000,60 turns of viscosity turn for 2000-2500, coating application thixotroping value is between 2.5-3.5.Described drying side
Formula refers to tack in normal temperature self-drying, 30-45 minutes, is done solid work completely after 5-7 days, after normal temperature cure 6h, non-foaming, hair of drenching with rain
In vain.Disposable thick apply of the present invention refers to that thickness of dry film is more than 60 microns.
The present invention has the following advantages that compared with prior art：
1. the present invention is dried in auto-oxidatively drying waterborne epoxy coatings addition swelling type promotes emulsion resin, pass through phase patibhaga-nimitta
The principle of molten Permeation Swelling, realizes that quick-drying, anti-flash rusting, the disposable thickness of aqueous self-drying coating in humid conditions apply anti-current
Extension property and corrosion resistance.
2. swelling type that the present invention is provided dry introduced on the acrylic chain for promoting emulsion resin epoxy phosphate ester group,
The acetoacetoxy groups of self-crosslinking structure and two hydrazide structures, permeability of the increase emulsion resin to water-soluble epoxy ester, hygrometric state
Adhesive force and crosslink density, lifting paint film water resistance and corrosion resistance；Swelling type, which is dried, promotes emulsion resin to contain containing reactive pattern
Emulphors agent, reduces the generation of corrosion current in resin free charge, reduction resin film forming procedure, reduces the generation of flash rusting；Together
When, gradient polymeric stage by stage is carried out using pattern self-combination technology when preparing swelling type drying promotion emulsion resin, ring is prepared
Oxygen is phosphate-based in core-shell emulsion of the front end in fusiform, is conducive to emulsion resin to aqueous acrylic modified epoxy ester resin
Infiltration and be swelled so that realize film quick-drying, it is thick apply resist sagging, be substituted off the swollen class of unnecessary polyurethanes, alkali soluble or
Swelling great soil group thickener, the side effect not produced, lifting film is anti-to dodge erosion ability and water resistance.
(3) aqueous self-drying protective coating of the invention is adapted to the production line balance of the existing oiliness paint line of staircase, solves
Staircase existing oiliness paint line can not meet the construction difficult problem of water paint application.
Embodiment
A part of specific embodiment is set forth below, and the present invention will be described, it is necessary to it is pointed out here that be real in detail below
Apply example and be served only for that the invention will be further described, do not represent limiting the scope of the invention.Other people are according to the present invention
Some the nonessential modifications and adjustment made still fall within protection scope of the present invention.
The auto-oxidatively drying waterborne epoxy coatings that the present invention is used is aqueous acrylic modified epoxy ester coating.Coating master
It is aqueous acrylic modified epoxy ester, antirust color stuffing, auxiliary agent and water to want composition.Wherein, the percentage by weight of Main Ingredients and Appearance is
The modified Huan Yang Zhi ﹕ antirust face Tian Liao ﹕ Zhu Ji ﹕ water of aqueous acrylamide acid=（25-35）﹕（30-40）﹕（1-2）﹕（25-35）.The water
Property acrylic modified epoxy ester be the non-swelling type epoxy-ester of water-soluble linear, amount of solid content is more than 75%, wherein resin solid part
Middle acrylic ester monomer content is more than 40%, and antirust color stuffing is titanium dioxide, carbon black and trbasic zinc phosphate, and auxiliary agent is acetylenic diols table
Face activating agent.
Swelling type dry promote emulsion resin refer to epoxide group, phosphate group, self-crosslinking structure acetoacetyl
The emulsifier-free emulsion polymerization in fusiform of epoxide and two hydrazides groups is acrylic resin modified, and resin outward appearance is light blue the sub-translucent liquid of color
Body, solids content 35%~45%.As one embodiment of the present of invention, the swelling type dries the preparation method for promoting emulsion resin
It is as follows：
(1) preparation of epoxy phosphate ester performed polymer：By 10~20 parts of epoxy resin 128 and 5~10 parts of n-butanol
It is added in four mouthfuls of roasting bottles equipped with constant pressure funnel, hygrometer, reflux condensing tube and agitating device, heating stirring is treated to 110 DEG C
After epoxy resin is completely dissolved certainly, 0.5~1.0 part of phosphoric acid is slowly added dropwise in four mouthfuls of roasting bottles, is then refluxed for reacting 2-
3h, then reclaims n-butanol by vacuum distillation, obtains epoxy phosphate ester performed polymer.
(2) first with the initiator of 2.0~5.0 parts of deionized water dissolving acrylate monomer total amounts 0.25%~0.75%,
Obtain initiator solution.
(3) deionized water of 10.0~15.0 parts of addition, 0.5~1.5 part of emulsifying agent vinyl alkyl in reaction vessel
Phosphate APEO270, high-speed stirred 20 minutes, methyl methacrylate and the styrene for then adding 5.0~10.0 parts is compound
Thing (methyl methacrylate:Styrene=1:1), 1~5 part of the AAEM of function monomer containing acetoacetoxy groups, high-speed stirred emulsification
It is scattered, 70~100 DEG C are warming up to, the initiator solution of total amount about 20% is added, question response system occurs after obvious blue light, insulation 20
Minute, that is, obtain the stratum nucleare containing acetoacetoxy groups.
(4) deionized water of 15.0~35.0 parts by weight, 0.5~1.5 part of emulsifying agent are put into reaction vessel, at a high speed
After stirring 20 minutes, by remaining 25~30 parts of methyl methacrylate, styrene and methacrylic acid compound (methyl-prop
E pioic acid methyl ester:Styrene:Methacrylic acid=1:1:0.05), 0.5~2.0 part contains two hydrazides class crosslinking agent ADH and step (1)
Epoxy phosphate ester performed polymer add in reaction vessel, mix monomer pre-emulsion is made in high speed emulsion dispersion；Then will mixing
20 sections of the initiator solution of monomer pre-emulsion and total amount about 50% point is instilled by several times to be reacted in reaction vessel, every section of dropwise addition
Time control is 0.5h, is incubated 15min, and reaction temperature maintains 70~100 DEG C, is eventually adding remaining initiator solvent, then
1~2h is incubated, 60 DEG C are cooled to, is neutralized with 0.5~1.0 part of triethylamine, after being sufficiently stirred for, is down to room temperature, is filtered, is produced and be swelled
Type, which is dried, promotes emulsion resin.
The rotating speed of stirring is 1000 revs/min, and the rotating speed of emulsion dispersion is 1500-2000 revs/min.
Phase stabilization aid is the Pluronic F87 of BASF.Inhibition auxiliary agent is heterocyclic organic compound, such as Longhai City
The DA-7012 of work.
Staircase is as follows with aqueous self-drying protective coating preparation method：
(1) auto-oxidatively drying waterborne epoxy coatings is positioned in high speed dispersor to enter with 500-3500r/min speed
Row is scattered, and temperature control is between 50-60 DEG C；
(2) add swelling type in premix groove and dry and promote emulsion resin, stirred with 1500-2000r/min rotating speed middling speed
Mix, be then slowly added into phase stabilization aid, moderate-speed mixer 20-30 minutes；
(3) uniform emulsion resin is pre-mixed in step (2), it is added in step (1), 1500-2000r/min
Rate Dispersion 20-30 minutes, then adds inhibition auxiliary agent, and stirring is cooled to room temperature after 10 minutes, filters, and produces staircase with aqueous
From dry protective coating.
In step (1), in dispersion process it is noted that coating not with air contact, it is to avoid oxidation drying causes skinning.Step
(3) temperature control is below 45 DEG C in processing procedure.
After above-described embodiment 1-3 and comparative example 1-2 aqueous self-drying protective coating deionized water is diluted, using high pressure
Mixture spray gun, is sprayed on T-shaped cast iron of the surface Jing Guo oil removing, grinding process, is 90% in humidity, temperature is in the environment of 5 DEG C
Carry out normal temperature cure test.Rear film performance is fully cured referring to table two：
From table two, apply the combination property of example 3 preferably, disclosure satisfy that the production requirement of the existing oiliness paint line of staircase.
Embodiment 6
(1) staircase workpiece is subjected to oil removing and grinding process；
(2) staircase aqueous self-drying protective coating dilutes through deionized water, mixed using high pressure in the environment of humidity ventilation
Gas spray gun is sprayed on staircase workpiece surface, film normal temperature self-drying.
Staircase after dilution is tested with 25 DEG C of working viscosities of aqueous self-drying protective coating with rotation viscometer, 6 turns of viscosity
Turn for 5000-7000,60 turns of viscosity turn for 2000-2500, coating application thixotroping value is between 2.5-3.5.Drying mode is normal
Tack in Wen Zigan, 30-45 minutes, does solid work completely after 5-7 days, after normal temperature cure 6h, drench with rain it is non-foaming, turn white.Disposably
Thickness is painted with thickness of dry film more than 60 microns.
Claims (8)
1. a kind of staircase aqueous self-drying protective coating, it is characterized in that, include the component of following mass distribution ratio：
80~100 parts of auto-oxidatively drying waterborne epoxy coatings
Swelling type dries 0~20 part of emulsion resin of promotion but is not 0
0.5~2 part of phase stabilization aid
1~2 part of inhibition auxiliary agent；
The swelling type, which is dried, promotes emulsion resin to refer to the acetoacetoxy groups with epoxy phosphate ester group, self-crosslinking structure
The emulsifier-free emulsion polymerization in fusiform with two hydrazides groups is acrylic resin modified, its solids content 35%~45%；
The auto-oxidatively drying waterborne epoxy coatings is aqueous acrylic modified epoxy ester coating；The coating main component is aqueous
Acrylic modified epoxy ester, antirust color stuffing, auxiliary agent and water；Wherein, the percentage by weight of Main Ingredients and Appearance changes for water soluble acrylic acid
Property Huan Yang Zhi ﹕ antirust face Tian Liao ﹕ Zhu Ji ﹕ water=25-3 ﹕ 30-40 ﹕ 1-2 ﹕ 25-35；The aqueous acrylic modified epoxy ester is
The non-swelling type epoxy-ester of water-soluble linear, amount of solid content is more than 75%, wherein acrylic ester monomer content in resin solid part
More than 40%, the antirust color stuffing is titanium dioxide, carbon black and trbasic zinc phosphate, and the auxiliary agent is acetylenic diols surfactant.
2. staircase according to claim 1 aqueous self-drying protective coating, it is characterized in that, the swelling type, which is dried, promotes emulsion
The preparation method of resin is as follows：
(1) preparation of epoxy phosphate ester performed polymer：The epoxy resin 128 and 5~10 parts of n-butanol for taking 10~20 parts are heated
Stirring is to 110 DEG C, after epoxy resin is completely dissolved, and 0.5~1.0 part of phosphoric acid is added dropwise, and is then refluxed for reacting 2-3h, reaction knot
N-butanol is reclaimed by vacuum distillation after beam, epoxy phosphate ester performed polymer is obtained；
(2) 0.25%~0.75% initiator of 2.0~5.0 parts of deionized water dissolving acrylate monomer total amounts is taken, is drawn
Send out agent solution；
(3) deionized water of 10.0~15.0 parts of addition, 0.5~1.5 part of emulsifying agent vinyl alkyl phosphoric acid in reaction vessel
Ester APEO270, stirs 15 ~ 25 minutes, then adds 5.0~10.0 parts of methyl methacrylate and the compound of styrene, 1
~5 parts of the AAEM of function monomer containing acetoacetoxy groups, stirring and emulsifying is disperseed, and is warming up to 70~100 DEG C, is added total amount 20% and is drawn
Agent solution is sent out, question response system occurs after obvious blue light, is incubated 15 ~ 25 minutes, that is, obtains the core containing acetoacetoxy groups
Layer；
(4) deionized water of 15.0~35.0 parts by weight, 0.5~1.5 part of emulsifying agent are put into reaction vessel, stirs 20 points
Zhong Hou, contains two hydrazides classes by 25~30 parts of methyl methacrylate, styrene and methacrylic acid compound, 0.5~2.0 part
Crosslinking agent ADH and the epoxy phosphate ester performed polymer of step (1) are added in reaction vessel, emulsion dispersion, mix monomer are made pre-
Emulsion；Then 20 sections of the mix monomer pre-emulsion and the initiator solution of total amount 50% point are instilled into reaction vessel by several times
In, every section of time for adding control is 0.5h, is incubated 15min, reaction temperature maintains 70~100 DEG C, is eventually adding remaining draw
Agent solution is sent out, then is incubated 1~2h, 60 DEG C are cooled to, is neutralized with 0.5~1.0 part of triethylamine, after being sufficiently stirred for, is down to room temperature, mistake
Filter packaging, which produces swelling type and dried, promotes emulsion resin.
3. staircase according to claim 2 aqueous self-drying protective coating, it is characterized in that, the rotating speed of the stirring is 1000
Rev/min, the rotating speed of the emulsion dispersion is 1500-2000 revs/min.
4. staircase according to claim 3 aqueous self-drying protective coating, it is characterized in that, the phase stabilization aid is Bath
The Pluronic F87 of husband；Described inhibition auxiliary agent is heterocyclic organic compound.
5. a kind of preparation method of the staircase aqueous self-drying protective coating described in any one of claim 1-4, it is characterized in that, bag
Include following steps：
(1) auto-oxidatively drying waterborne epoxy coatings is positioned in high speed dispersor and divided with 500-3500r/min speed
Dissipate, temperature control is between 50-60 DEG C；
(2) add swelling type in premix groove and dry and promote emulsion resin, with 1500-2000r/min rotating speed moderate-speed mixer,
It is then slowly added into phase stabilization aid, moderate-speed mixer 20-30 minutes；
(3) uniform emulsion resin is pre-mixed in step (2), it is added in step (1), 1500-2000r/min speed
It is scattered 20-30 minutes, inhibition auxiliary agent is then added, stirring is cooled to room temperature after 10 minutes, filters, produces staircase aqueous self-drying
Protective coating.
6. staircase according to claim 5 aqueous self-drying protective coating preparation method, it is characterized in that, the step (1)
In, in dispersion process it is noted that coating not with air contact, it is to avoid oxidation drying causes skinning；The step (3) it is treated
Temperature control is below 45 DEG C in journey.
7. a kind of usage right requires application of the staircase with aqueous self-drying protective coating in wet condition described in any one of 1-4
Technique, it comprises the following steps：
(1) staircase workpiece is subjected to oil removing and grinding process；
(2) staircase aqueous self-drying protective coating is diluted through deionized water, and gas blowout is mixed using high pressure in the environment of humidity ventilation
The disposable thickness of rifle is coated on staircase workpiece surface, film normal temperature self-drying.
8. coating process of the staircase according to claim 7 with aqueous self-drying protective coating in wet condition, its feature
It is that the staircase after dilution is tested with 25 DEG C of working viscosities of aqueous self-drying protective coating with rotation viscometer, 6 turns of viscosity are
5000-7000 turns, and 60 turns of viscosity turn for 2000-2500, and coating application thixotroping value is between 2.5-3.5；Described drying mode
For normal temperature self-drying, tack in 30-45 minutes is done solid work, after normal temperature cure 6h completely after 5-7 days；Described disposable thickness is painted with
Thickness of dry film is more than 60 microns.
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| CN109535919B (en) * | 2018-10-11 | 2021-02-19 | 擎天材料科技有限公司 | Low-temperature quick-drying water-based paint and disc type electrostatic spraying process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319665A (en) * | 2013-06-13 | 2013-09-25 | 华南理工大学 | Single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin emulsion and preparation method thereof |
| CN104356884A (en) * | 2014-10-10 | 2015-02-18 | 广州擎天材料科技有限公司 | Low-temperature quick-drying water-based primer-topcoat protective paint used for elevator track and preparation method thereof |
| CN104861119A (en) * | 2015-06-17 | 2015-08-26 | 武汉工程大学 | Room temperature dual-curing and self-phosphorization acrylic acid emulsion and application thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319665A (en) * | 2013-06-13 | 2013-09-25 | 华南理工大学 | Single-component room-temperature multiple-self-crosslinking aqueous epoxy acrylate resin emulsion and preparation method thereof |
| CN104356884A (en) * | 2014-10-10 | 2015-02-18 | 广州擎天材料科技有限公司 | Low-temperature quick-drying water-based primer-topcoat protective paint used for elevator track and preparation method thereof |
| CN104861119A (en) * | 2015-06-17 | 2015-08-26 | 武汉工程大学 | Room temperature dual-curing and self-phosphorization acrylic acid emulsion and application thereof |
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