CN104031512A - High-solid content high-build water-based damping coating and preparation method thereof - Google Patents
High-solid content high-build water-based damping coating and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a high-solid content high-build water-based damping coating and a preparation method thereof. The water-based damping coating comprises the following components in parts by weight: 20-40 parts of emulsions, 1-5 parts of curing agents, 50-60 parts of inorganic fillers, 5-10 parts of water, 1-2 parts of film-forming auxiliary agents, 1-6 parts of thickening agents, 0.5-2 parts of water-based dispersing agents, 0.5-3 parts of water-based wetting agents and 0.5-1.5 parts of water-based defoaming agents, wherein the emulsions are high-solid content styrene-acrylic emulsions with lower glass temperature. The high-solid content high-build water-based damping coating is prepared through the following three steps of: preparation of a water-based emulsion, addition of a filler and an auxiliary agent and paint blending. The product disclosed by the invention has the advantages of wider damping temperature domain, better damping property and very good low-temperature damping property especially. The high-solid content high-build water-based damping coating disclosed by the invention can be coated in a scratching way and a spraying way, can realize the thickness of a paint film more than 3 mm through one-pass construction, is obvious in shear thinning, has the advantages of good sag resistance, no curling or cracking in a drying and solidifying process and good mechanical property, can be applied to an automobile and various mechanical equipment and achieves the effects of vibration reduction, sound insulation and noise reduction.
Description
Technical field
The present invention is Chemicals and water-borne coatings preparation field, is particularly useful for automotive industry, high ferro and all kinds of mechanical means etc. and has the coating at sharp pounding position, to reach the heavy sizing aqueous damping paint of damping noise reduction effect.
Background technology
Taking economy, efficiency, ecology and the energy under the principle of development coatings industry, global Coating Market just towards more adapt to environmental requirement water-based, high solid containing and the development of solvent-free coating direction.Damping paint hydrotropismsization develops also composite coating industry overall development trend.And some aqueous damping coatings ensure quality product by adding a part of organic solvent as CN 102558925 A, to workmen even user cause health problem.
In the research process of aqueous damping coating, the common solid content of prior art is lower, even if solid content is higher, also easily occur that sagging phenomenon and viscosity are difficult for too greatly the phenomenons such as construction, disposablely while finally causing constructing cannot apply enough thick paint film, easily cause the complicated of the waste of material and construction, thereby synthetic suitable emulsion system can disperse more condiment and obtain good rheological property by the effect of thickening material to seem particularly important.In addition paint film damping temperature domain is narrower, and the poor product performance that also directly cause of low temperature damping capacity are poor.Some aqueous damping coatings as CN 102408792 A and C N101864227 A by the different emulsion of composite second-order transition temperature to reach the object of widening damping temperature domain, but cause damping factor lower, the phenomenon that damping effect is not high, and its damping temperature domain is not wide yet, do not reach the effect of good damping noise reduction.
Summary of the invention
The technical problem that the present invention mainly solves is, by configuration high solids content stable in properties and the lower water-based emulsion of viscosity, improve the solid content of coating, and make coating there is the character of Newtonian fuid by the kind and the consumption that regulate thickening material, and under zero shearing condition, there is good sag resistance, strongly thinning under shearing action, there is the good feature of mobility, be convenient to blade coating and spraying application, and due to the effect of hydrogen bond, improve paint film adhesion.
In addition, another object of the present invention, by regulating the granularity of mineral filler and consumption to widen the damping temperature domain of coating, and by synthetic single low Tg emulsion, be that coating has excellent damping capacity at low temperature, and ensure within the scope of whole damping temperature domain, all to there is good damping capacity.By adding, solidifying agent is crosslinked in dry and solidification process at coating makes paint film have good mechanical property and sticking power in addition.
A kind of heavy sizing aqueous damping paint of high solids content, it is characterized in that: taking water-based benzene emulsion hereinafter to be referred as emulsion as base-material, water-ground limestone is main stuffing, be aided with talcum powder and functional inorganic filling, and add solidifying agent, coatings additive(s) and water, comprise that following moiety is as follows by weight ratio: 20～40 parts of emulsions, 1～5 part, solidifying agent, 50～60 parts of mineral fillers, 5～10 parts, water, 1～2 part of film coalescence aid, 1～6 part of thickening material, 0.5～3 part of aqueous dispersant, 0.5～3 part of aqueous wetting agent, 0.5～1.5 part of water-based defoamer; Mineral filler comprises water-ground limestone, talcum powder and functional inorganic filling, and granularity is 300～2000 orders; Emulsion is passed through as follows by weight ratio to phenylethylene ethylene/propenoic acid ester class hard monomer, esters of acrylic acid soft monomer and some function monomers: 20～50:40～80:1～10, emulsifying agent accounts for 1.5%～2% of monomer total amount, and emulsion solid content is 40%～60%.
Further, described water-based benzene emulsion, hard monomer is methyl methacrylate, one or both in vinylbenzene; Esters of acrylic acid soft monomer is butyl acrylate; Function monomer is with carboxyl, one or more of amino or amide group monomer complex, in the oxyethane that emulsifying agent is low alveolitoid and propylene oxide block copolymer (PE6100), sulfo-succinic acid ester derivative (EF810) and dodecyl biphenyl sodium sulfonate (DSB) several by etc. the composite use of mass ratio.
Further, its functional inorganic filling is one or both in flaky mica powder, vermiculite power.
Further, solidifying agent is aminoresin class solidifying agent.
Further, film coalescence aid is propylene glycol ethers film coalescence aid.
Further, thickening material is a kind of or two or more in aerosil, wilkinite, Natvosol, byk-420, byk-425, byk-428, byk-430.
Further, aqueous dispersant is composite in one or both in byk-154, byk-182, byk-190 proportional range with mass ratio 1:1～1:2; Aqueous wetting agent is that the mass ratios such as one or both in byk306, byk-307, byk-333, byk346 are composite; Water-based defoamer is composite in one or both in byk-011, byk-015, byk-024, tego-815 mass ratio range with 1:1～1:2.
Prepare the method for the heavy sizing aqueous damping paint of described high solids content, it is characterized in that comprising the following steps:
(1) preparation of water-based benzene emulsion
First by 5%～15% of monomer mass, emulsifying agent, 30%～50% of pH buffer reagent and water adds in reactor, opens whipping appts and heating unit to 60 DEG C～85 DEG C, omnidistance logical nitrogen protection.Rear dropping 0.25～1.5h soluble in water half initiator is reacted, obtain seed emulsion after dripping off post curing 0.5～1h.
By remaining 85%～95% monomer, emulsifying agent, pH buffer reagent and remaining 70%～50% water are added drop-wise to together in reactor after stirring pre-emulsification 0.5～2h, now also drip residue initiator simultaneously, and time for adding is 2～5h.Slaking 2～4h afterwards, can obtain water-based benzene emulsion.
(2) dispersion of filler
In 8～20 parts of water, add 1～2 part of aqueous dispersant and 0.1～0.5 part of defoamer, add 80～90 parts of water-ground limestones to disperse, finally add 0～1 part of wetting agent and 0～0.5 part of polyurethane thickener, obtain slurry A solid content 80%～90%.In 25～30 parts of water, add 1～2 part of aqueous dispersant and 0.1～0.5 part of defoamer, add 70～75 parts of talcum powder and mica powder to disperse, the two mass ratio is 2:1～6:1, finally add 0～0.4 part of wetting agent and 0～0.3 part of polyurethane thickener, obtain slurry B solid content 70%～75%.
(3) preparation of paint vehicle
By homogenizer paint, rotating speed 1000r/min～4000r/min.Above-mentioned 20～40 parts of emulsions are passed through to regulate behind pH to 8.5～9.3, add the solidifying agent of 1～5 part, add again 0～0.5 part of wetting agent, after 0.5～1 part of dispersion agent and 0.5～1 part of defoamer, add 40～55 parts of above-mentioned slurry A and 8～12 parts of above-mentioned slurry B, add 1～5 part of mica powder and vermiculite power one or both, the two mass ratio is 0:1～3:1.5, after being uniformly dispersed, add 1～6 part of thickening material to regulate denseness, finally add 1～2 part of film coalescence aid, obtain the heavy sizing aqueous damping paint of high solids content.
The heavy sizing aqueous damping paint of high solids content of the present invention, be 40%～60% by synthetic solid content, the high benzene emulsion of stability is as base-material, taking water-ground limestone as main stuffing, be aided with the mineral fillers such as talcum powder, regulate emulsion and the amount of filler and the granularity of filler, change low temperature damping and amortization and the damping temperature domain of coating, and by adding the mechanical property of solidifying agent adjusting coating.In addition, by regulating the amount of different thickening materials and coating entirety solid content to come flow resistance and the blade coating performance of adjusting coating.The present invention can be used for automobile and the medium workpiece place of being shaken of other mechanical means, plays damping noise reduction effect.Have wider damping temperature domain and damping capacity, and have good mechanical property and coating performance, cost is lower, and emulsion binder stable in properties, and industrial production, has a good application prospect in a large number.
Embodiment
Embodiment 1
(1) preparation of water-based benzene emulsion
First by 27.75g vinylbenzene; 45g butyl acrylate; 0.75g methacrylic acid, 1.5 Methacrylamides, 4.076gDSB; 1.875gPE6100; 5.357gEF810,0.75gNaHCO3, adds in reactor after 300g water mixes; opening whipping appts rotating speed is 330r/min and heating unit to 82 DEG C, omnidistance logical nitrogen protection.After 1.125g ammonium persulphate and 1.125g sodium bisulfite are dissolved in respectively in 25g water, drip 35min and react, after slaking 30min, obtain seed emulsion.
Again by 249.75g vinylbenzene, 405g butyl acrylate, 6.75g methacrylic acid, 13.5 Methacrylamides, 4.076gDSB, 1.875gPE6100,5.357gEF810,0.75gNaHCO3, after 300g water mixes, after stirring pre-emulsification 0.5h, be added drop-wise to together in reactor, now also drip initiator, initiator is 1.125g ammonium persulphate and 1.125g sodium bisulfite simultaneously, the two is dissolved in respectively in 50g water, and time for adding is 5h.Slaking 3h afterwards, can obtain water-based benzene emulsion.
(2) dispersion of filler
In 100g water, add 20g190, after stirring under homogenizer 1600r/min, add 1.5gbyk-011 and 3.5gbyk-024, under 3000r/min, disperse 10min, under the rotating speed of 1000r/min, add 900g coarse whiting (1250 order), after adding, rotating speed being adjusted to 2000r/min is uniformly dispersed, after slurry is smoothly stable, add 10gbyk-333,3.5gbyk-425 and 3.5gbyk-428, note the amendment of these terms, preferably provide Business Name Chinese and English to keep rotating speed stirring 10min to obtain calcium carbonate slurry.
In 150g water, add 30g190, after stirring under homogenizer 1600r/min, add 1.5gbyk-011 and 3.5gbyk-024, under 3000r/min, disperse 10min, under the rotating speed of 1000r/min, add 375g talcum powder (1250 order) and 75g mica powder (1000 order), after adding, rotating speed being adjusted to 2000r/min is uniformly dispersed, after slurry is smoothly stable, add 5gbyk-333,2gbyk-425 and 2gbyk-428, keep rotating speed to stir 10min and obtain talcum powder, mica powder slurry, hereinafter to be referred as sliding cloud slurry.
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to note the amendment of these terms, to 8.8～9.0, after stirring 10min, add 1.93gbyk-333 and 1.93gbyk-190 and 1.93gbyk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 3.85g vermiculite power (325 order) and 11.55g mica powder (400 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 1.93gbyk-425, 7.70gDPNB and 5.77gQP3000H, finally add 1.93g byk-333, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Embodiment 2
(1) preparation of water-based benzene emulsion
Identical with embodiment 1.
(2) dispersion of filler
Identical with embodiment 1
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to 8.8～9.0, after stirring 10min, add 1.93g byk-333 and 1.93gbyk-190 and 1.93g byk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 3.85g vermiculite power (325 order) and 11.55g mica powder (1000 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 1.93g byk-425, 7.70gDPNB and 5.77gQP3000H, finally add 1.93g byk-333, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Embodiment 3
(1) preparation of water-based benzene emulsion
Identical with embodiment 1.
(2) dispersion of filler
In 100g water, add 20g190, after stirring under homogenizer 1600r/min, add 1.5g byk-011 and 3.5g byk-024, under 3000r/min, disperse 10min, under the rotating speed of 1000r/min, add 900g coarse whiting (wherein 1250 object coarse whitings and 800 object coarse whitings and 400 object coarse whitings are 1:2:2 by quality proportioning), after adding, rotating speed being adjusted to 2000r/min is uniformly dispersed, after slurry is smoothly stable, add 10g byk-333,3.5g byk-425 and 3.5gbyk-428, keep rotating speed to stir 10min and obtain calcium carbonate slurry.
In 150g water, add 30g190, after stirring under homogenizer 1600r/min, add 1.5g byk-011 and 3.5g byk-024, under 3000r/min, disperse 10min, under the rotating speed of 1000r/min, add 375g talcum powder (1250 order) and 75g mica powder (1000 order), after adding, rotating speed being adjusted to 2000r/min is uniformly dispersed, after slurry is smoothly stable, add 5g byk-333,2g byk-425 and 2g byk-428, keep rotating speed to stir 10min and obtain talcum powder, mica powder slurry, hereinafter to be referred as sliding cloud slurry.
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to 8.8～9.0, after stirring 10min, add 1.93g byk-333 and 1.93gbyk-190 and 1.93g byk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 3.85g vermiculite power (325 order) and 11.55g mica powder (400 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 1.93g byk-425, 7.70gDPNB and 5.77gQP3000H, finally add 1.93g byk-333, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Embodiment 4
(1) preparation of water-based benzene emulsion
Identical with embodiment 1.
(2) dispersion of filler
Identical with embodiment 1.
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to 8.8～9.0, after stirring 10min, add 1.93g byk-333 and 1.93gbyk-190 and 1.93g byk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 5.77g vermiculite power (325 order) and 11.55g mica powder (400 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 1.93g byk-425, 7.70gDPNB and 5.77gQP3000H, finally add 1.93g byk-333, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Embodiment 5
(1) preparation of water-based benzene emulsion
First by 27.75g vinylbenzene; 45g butyl acrylate; 0.75g methacrylic acid, 1.5 Methacrylamides, 4.076gDSB; 1.875gPE6100; 5.357gEF810,0.75gNaHCO3, adds in reactor after 200g water mixes; opening whipping appts rotating speed is 330r/min and heating unit to 60 DEG C, omnidistance logical nitrogen protection.After 1.125g ammonium persulphate and 1.125g sodium bisulfite are dissolved in respectively in 25g water, drip 55min and react, after slaking 30min, obtain seed emulsion.
Again by 249.75g vinylbenzene, 405g butyl acrylate, 6.75g methacrylic acid, 13.5 Methacrylamides, 4.076gDSB, 1.875gPE6100,5.357gEF810,0.75gNaHCO3, after 400g water mixes, after stirring pre-emulsification 0.5h, be added drop-wise to together in reactor, now also drip initiator, initiator is 1.125g ammonium persulphate and 1.125g sodium bisulfite simultaneously, the two is dissolved in respectively in 50g water, and time for adding is 2h.Slaking 2h afterwards, can obtain water-based benzene emulsion.
(2) dispersion of filler
Identical with embodiment 1.
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to 8.8～9.0, after stirring 10min, add 1.93g byk-333 and 1.93gbyk-190 and 1.93g byk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 3.85g vermiculite power (325 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 3.85g byk-333, 5.77gQP3000H, 3.85g byk-425, 3.85gbyk-428 and 7.70gDPNB, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Embodiment 6
(1) preparation of water-based benzene emulsion
Identical with embodiment 5
(2) dispersion of filler
Identical with embodiment 1.
(3) preparation of paint vehicle
Under homogenizer 1600r/min, 100g emulsion adds after 19.25g methyl-etherified trimeric cyanamide (CYEML385), add 3g aminomethyl propanol to adjust pH to 8.8～9.0, after stirring 10min, add 1.93g byk-307 and 1.93gbyk-190 and 1.93g byk-011 and 1.93g byk-024, turn speed for 3000r/min, stir 15min.Then in another beaker, add calcium carbonate slurry in 214g step (2), sliding in 32.6g step (2), cloud slurry, 3.85g vermiculite power (325 order), after stirring as far as possible, under 1000r/min rotating speed, add in emulsion, after adding, turning speed stirs for 2000r/min, after 15min, treat liquid level stabilizing, add 3.85g aerosil and 3.85g wilkinite, after adding rear stirring 5min, add 3.85g byk-307, 5.77gQP3000H, 3.85g byk-425, 3.85gbyk-428 and 7.70gDPNB, obtain the heavy sizing aqueous damping paint of high solids content.The omnidistance logical water of condensation cooling of paint process.
Whether stable comparative example 1～6 stability of emulsion, evaluate emulsion by Calcium ion stability.Wherein Calcium ion stability testing method is that in 20g to adjust pH be 8.8～9 emulsion, to add 5g massfraction be 1% calcium chloride water, room temperature left standstill after 48 hours, observe whether breakdown of emulsion, layering and separate out small-particle agglutinating matter of emulsion, if be difficult phenomenon, Calcium ion stability is passed through, otherwise does not pass through.
Table 1
| Experimental project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Calcium ion stability | Pass through | Pass through | Pass through | Pass through | Pass through | Pass through |
The damping temperature domain of comparative example 1～6 heavy sizing aqueous damping paint and damping capacity and blade coating 2.2mm rheological property, test result is in table 2.Wherein damping factor illustrates and has damping effect more than 0.3.
Table 2
Above example is some examples in the present invention; not the present invention is done to other any type of restrictions; any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the example of equivalent variations; in every case do not depart from this technological invention and produce conflict; do any simple modification etc. according to technical spirit of the present invention, still belong to the protection category of technical solution of the present invention.
Claims (8)
1. the heavy sizing aqueous damping paint of a high solids content, it is characterized in that: taking water-based benzene emulsion hereinafter to be referred as emulsion as base-material, water-ground limestone is main stuffing, be aided with talcum powder and functional inorganic filling, and add solidifying agent, coatings additive(s) and water, comprise that following moiety is as follows by weight ratio: 20～40 parts of emulsions, 1～5 part, solidifying agent, 50～60 parts of mineral fillers, 5～10 parts, water, 1～2 part of film coalescence aid, 1～6 part of thickening material, 0.5～3 part of aqueous dispersant, 0.5～3 part of aqueous wetting agent, 0.5～1.5 part of water-based defoamer; Mineral filler comprises water-ground limestone, talcum powder and functional inorganic filling, and granularity is 300～2000 orders; Emulsion is passed through as follows by weight ratio to phenylethylene ethylene/propenoic acid ester class hard monomer, esters of acrylic acid soft monomer and some function monomers: 20～50:40～80:1～10, emulsifying agent accounts for 1.5%～2% of monomer total amount, and emulsion solid content is 40%～60%.
2. the heavy sizing aqueous damping paint of high solids content according to claim 1, its water-based benzene emulsion, hard monomer is methyl methacrylate, one or both in vinylbenzene; Esters of acrylic acid soft monomer is butyl acrylate; Function monomer is with carboxyl, one or more of amino or amide group monomer complex.
3. the heavy sizing aqueous damping paint of high solids content according to claim 1, its functional inorganic filling is one or more in flaky mica powder, vermiculite power.
4. the heavy sizing aqueous damping paint of high solids content according to claim 1, its curative systems is aminoresin class solidifying agent.
5. the heavy sizing aqueous damping paint of high solids content according to claim 1, its film coalescence aid is propylene glycol ethers film coalescence aid.
6. the heavy sizing aqueous damping paint of high solids content according to claim 1, thickening material is a kind of or two or more in aerosil, wilkinite, Natvosol, byk-420, byk-425, byk-428, byk-430.
7. the heavy sizing aqueous damping paint of high solids content according to claim 1, aqueous dispersant is composite in one or both in byk-154, byk-182, byk-190 proportional range with mass ratio 1:1～1:2; Aqueous wetting agent is that the mass ratios such as one or both in byk306, byk-307, byk-333, byk346 are composite; Water-based defoamer is composite in one or both in byk-011, byk-015, byk-024, tego-815 mass ratio range with 1:1～1:2.
8. the method for preparing the heavy sizing aqueous damping paint of high solids content described in claim 1, is characterized in that comprising the following steps:
(1) preparation of water-based benzene emulsion
First by 5%～15% of monomer, emulsifying agent, 30%～50% of pH buffer reagent and water adds in reactor, opens whipping appts and heating unit to 60 DEG C～85 DEG C, omnidistance logical nitrogen protection; Rear dropping 0.25～1.5h soluble in water half initiator is reacted, obtain seed emulsion after dripping off post curing 0.5～1h;
By remaining monomer, emulsifying agent, pH buffer reagent and water are added drop-wise to together in reactor after stirring pre-emulsification 0.5～2h, now also drip residue initiator simultaneously, and time for adding is 2～5h; Slaking 2～4h afterwards, obtains water-based benzene emulsion;
(2) dispersion of filler
In 8～20 parts of water, add 1～2 part of aqueous dispersant and 0.1～0.5 part of defoamer, add 80～90 parts of water-ground limestones to disperse, finally add 0～1 part of wetting agent and 0～0.5 part of polyurethane thickener, obtain slurry A solid content 80%～90%; In 25～30 parts of water, add 1～2 part of aqueous dispersant and 0.1～0.5 part of defoamer, add 70～75 parts of talcum powder and mica powder to disperse, the two ratio is 2:1～6:1, finally add 0～0.4 part of wetting agent and 0～0.3 part of polyurethane thickener, obtain slurry B solid content 70%～75%;
(3) preparation of paint vehicle
By homogenizer paint, rotating speed 1000r/min～4000r/min; Above-mentioned 20～40 parts of emulsions are passed through to regulate behind pH to 8.5～9.3, add the solidifying agent of 1～5 part, add again 0～0.5 part of wetting agent, after 0.5～1 part of dispersion agent and 0.5～1 part of defoamer, add 40～55 parts of above-mentioned slurry A and 8～12 parts of above-mentioned slurry B, add 1～5 part of mica powder and vermiculite power, the two ratio is 0:1～3:1.5, after being uniformly dispersed, add 1～6 part of thickening material to regulate denseness, finally add 1～2 part of film coalescence aid, obtain the heavy sizing aqueous damping paint of high solids content.
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| CN106009960A (en) * | 2016-06-28 | 2016-10-12 | 上海大学 | Preparation method of water-resistant and acid-base-resistant damping coating |
| CN106147419A (en) * | 2016-05-23 | 2016-11-23 | 上海大学 | High temperature resistant quick-drying water-based damping paint and preparation method thereof |
| CN107974160A (en) * | 2017-12-17 | 2018-05-01 | 李巧珍 | A kind of preparation method of fire resistant water-based damping paint |
| CN109504213A (en) * | 2018-10-23 | 2019-03-22 | 杭州方周科技有限公司 | A kind of aqueous automobile finishing coat and preparation method thereof |
| CN109679426A (en) * | 2018-12-17 | 2019-04-26 | 万华化学集团股份有限公司 | A kind of aqueous damping coating and preparation method thereof |
| CN110218275A (en) * | 2019-05-05 | 2019-09-10 | 广州化工研究设计院 | A kind of acrylic emulsion that anti-inner corner trim cracks and the aqueous damping coating comprising the lotion |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147419A (en) * | 2016-05-23 | 2016-11-23 | 上海大学 | High temperature resistant quick-drying water-based damping paint and preparation method thereof |
| CN106009960A (en) * | 2016-06-28 | 2016-10-12 | 上海大学 | Preparation method of water-resistant and acid-base-resistant damping coating |
| CN106009960B (en) * | 2016-06-28 | 2018-06-01 | 上海大学 | A kind of preparation method of water-acid resistance damping paint |
| CN107974160A (en) * | 2017-12-17 | 2018-05-01 | 李巧珍 | A kind of preparation method of fire resistant water-based damping paint |
| CN109504213A (en) * | 2018-10-23 | 2019-03-22 | 杭州方周科技有限公司 | A kind of aqueous automobile finishing coat and preparation method thereof |
| CN109679426A (en) * | 2018-12-17 | 2019-04-26 | 万华化学集团股份有限公司 | A kind of aqueous damping coating and preparation method thereof |
| CN110218275A (en) * | 2019-05-05 | 2019-09-10 | 广州化工研究设计院 | A kind of acrylic emulsion that anti-inner corner trim cracks and the aqueous damping coating comprising the lotion |
| CN110218275B (en) * | 2019-05-05 | 2021-03-12 | 广州化工研究设计院 | Reentrant corner cracking resistant acrylic emulsion and water-based damping coating containing same |
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