CN107880676A - Novel aqueous one pack system seal coat and preparation method thereof - Google Patents
Novel aqueous one pack system seal coat and preparation method thereof Download PDFInfo
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- CN107880676A CN107880676A CN201711204912.0A CN201711204912A CN107880676A CN 107880676 A CN107880676 A CN 107880676A CN 201711204912 A CN201711204912 A CN 201711204912A CN 107880676 A CN107880676 A CN 107880676A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of novel aqueous one pack system seal coat and preparation method thereof, novel aqueous one pack system seal coat includes the raw material of following parts by weight：35 parts~45 parts of water-based acrylic resin, 20 parts~30 parts of waterborne polyurethane resin, 0.3 part~0.7 part of defoamer, 0.2 part~1 part of substrate wetting agents, 2 parts~5 parts of dipropylene, 2 parts~4 parts of dipropylene glycol methyl ether, 12 parts~3 parts of alcohol ester, 0.5 part~1 part of mould inhibitor, 0.3 part~0.6 part of wetting agent, 1 part~4 parts of zinc stearate, 0.5 part~1 part of tannin acid inhibitor, 0.1 part~0.5 part of amine neutralizer, 0.2 part~0.5 part of levelling agent, 0.2 part~0.5 part of polyurethane stick, 0.3 part~0.8 part of acrylic tackifiers, 10 parts~20 parts of deionized water.Above-mentioned paint vehicle can be closed effectively to timber color in itself, texture etc., and it need not additionally add curing agent, and cost is relatively low.
Description
Technical field
The present invention relates to seal coat design field, more particularly to a kind of novel aqueous one pack system seal coat and its system
Make method.
Background technology
In recent years, it is increasing applied to the aqueous priming paint on timber, but in actual use, find containing coloured
The timber of the compositions such as element, tannic acid, oil, such as red oak, deodar, pine, easily become after using water paint application
Color, application is carried out especially with white paint, often has local Yellowing, it is difficult to which timber is closed well.
In order to ensure good sealing effect, at present, in the market is closed usually using aqueous double-component seal coat,
Although aqueous double-component seal coat excellent, the price of aqueous double-component seal coat is high, and due to its volume of needs
It is outer to be solidified using curing agent, it is troublesome in poeration.And the sealing effect of one pack system seal coat in the market is not very
It is preferable.
The content of the invention
It is an object of the invention to provide a kind of novel aqueous one pack system seal coat, one in can solving the above problems
It is individual or multiple.
According to an aspect of the invention, there is provided a kind of novel aqueous one pack system seal coat, including following parts by weight
Raw material：
35 parts~45 parts of water-based acrylic resin, 20 parts~30 parts of waterborne polyurethane resin, 0.3 part~0.7 part of defoamer,
0.2 part~1 part of substrate wetting agents, 2 parts~5 parts of dipropylene, 2 parts~4 parts of dipropylene glycol methyl ether, alcohol ester 12 parts~3
Part, 0.5 part~1 part of mould inhibitor, 0.3 part~0.6 part of wetting agent, 1 part~4 parts of zinc stearate, tannin acid inhibitor 0.5 part~1
Part, 0.1 part~0.5 part of amine neutralizer, 0.2 part~0.5 part of levelling agent, 0.2 part~0.5 part of polyurethane stick, acrylic acid increase
0.3 part~0.8 part of stick, 10 parts~20 parts of deionized water.
Originally the beneficial effect of novel aqueous one pack system seal coat is：According to the water-based mono-component obtained by above-mentioned parts by weight
Seal coat, it is by test, and it is being painted on the timber containing compositions such as pigment, tannic acid, oil, and timber is by for a long time
Using all without there is metachromatism, effectively timber color in itself, texture etc. can be closed, sealing effect is preferable,
And it is used without additionally adding curing agent, easy to use, cost is relatively low.
In some embodiments, defoamer is organic silicon defoamer.Experiment measures, the use of organic silicon defoamer for
The defoaming effect of this novel aqueous one pack system seal coat is ideal.
In some embodiments, substrate wetting agents are organosilicon substrate wetting agents.Experiment measures, and uses organic silicon substrate
Wetting agent, the surface tension and permeability of this novel aqueous one pack system seal coat can be improved well.
In some embodiments, levelling agent is acrylic acid levelling agent.Experiment measures, after acrylic acid levelling agent, this
The levelability performance of novel aqueous one pack system seal coat is best.
In some embodiments, wetting agent is fluorine class wetting agent.Experiment measures, can be very using fluorine class substrate wetting agents
The surface tension and permeability of this novel aqueous one pack system seal coat are improved well.
In some embodiments, mould inhibitor is Kathon CG class mould inhibitor.Experiment measures, the use of Kathon CG class mould inhibitor for
The anti-mold effect of this novel aqueous one pack system seal coat is good, and stability is strong.
In some embodiments, the fineness of novel aqueous one pack system seal coat is less than 30 μm, novel aqueous one pack system
The pH of seal coat is 8~9.In actual use, if greater than 30 μm, it has this novel aqueous one pack system seal coat fineness
Caking phenomenon, it can develop and ring its performance, and if pH value is too high or too low timber can be caused to corrode, it is difficult to ensure its closing
Performance.
According to another aspect of the present invention, there is provided a kind of preparation method of novel aqueous one pack system seal coat, bag
Include following steps：
Step a, addition DPG determines ether, dipropylene glycol methyl ether, alcohol ester 12, mould inhibitor and wetting agent in charging basket,
Then carried out by high speed dispersor scattered for the first time, scattered time first time is 10 minutes~30 minutes, described the
Once scattered rate of dispersion is 500~800 revs/min；
Step b, then water-based acrylic resin, waterborne polyurethane resin and defoamer are added in barrel, then pass through height
Fast dispersion machine, which carries out second, to be disperseed, and second of the scattered time is 20 minutes, second of rate of dispersion disperseed
For 800~1000 revs/min；
Step c, then substrate wetting agents are added in barrel, then carrying out third time by high speed dispersor disperses, described
Third time jitter time is 5 minutes, and the scattered rate of dispersion of the third time is 500~800 rev/min；
Step d, then zinc stearate is added in barrel, then by high speed dispersor carry out the 4th time it is scattered, described the
Four jitter times are 20 minutes, and the 4th scattered rate of dispersion is 800~1000 revs/min；
Step e, then tannin acid inhibitor is added in barrel, the 5th scattered, institute is then carried out by high speed dispersor
It is 5 minutes to state the 5th jitter time, and the 5th scattered rate of dispersion is 600~800 revs/min；
Step f, then amine neutralizer is added in barrel, the first mixture is obtained, the pH for ensureing mixture is 8~9；
Step g, then levelling agent, polyurethane stick and acrylic tackifiers regulation viscosity are gradually added in barrel, obtain
To the second mixture, guarantee mixture viscosity is 420mm2/ S~470mm2/S；
Step h, by mixture by being filtered, obtain finished product.
The beneficial effect of the preparation method of this novel aqueous one pack system seal coat：Step a~e, by being gradually added original
Material, ensures the reaction successively of corresponding raw material, while often walks and all disperseed by high speed dispersor, and each by testing acquisition
The optimal scattered speed of step and time, thereby ensure that final each raw material sufficiently and uniformly reacts and mixed, step
F can then adjust pH value, prevent that the acid-base value of final finished is too low or too high, and cause the corrosion of timber, and step g setting is
In order to ensure that the viscosity of finished product meets demand, and step h is to completely cut off the part lumpd in mixture, ensures its mobility.
In some embodiments, mixture is filtered by 300 mesh filter screens in step h.Using the filter screen, can guarantee that
The finished product mobility finally obtained suits the requirements.
Embodiment
Embodiment 1
The AR- of water-based acrylic resin selection Dongguan City Fang Jing synthetic materials Science and Technology Ltd. supply in the present invention
615W water-based acrylic resins, the AMS-2099 of waterborne polyurethane resin selection Guangdong Yue Mei Chemical Co., Ltd.s supply are water-based poly-
Urethane resin, defoamer select the B-315 organic silicon defoamers of federal Fine Chemical Co., Ltd's supply in Guangdong, base material wetting
The SJS-245 organosilicon substrate wetting agents of agent selection Luoyang Sheng Jia Chemical Co., Ltd.s supply, dipropylene and dipropyl two
Alcohol methyl ether selects the dipropylene and dipropylene glycol methyl ether that Chi Li Chemical Co., Ltd.s of Shenzhen supply, and alcohol ester 12 selects
Selecting Guangzhou, this dredges the TEXANOL alcohol esters 12 that trade Co., Ltd supplies, and mould inhibitor selection Ji new east station of Guangzhou song chemical science and technology is limited
The KF-96 Kathon CG class mould inhibitors of company's supply, wetting agent select the Capstone FS- that the Chemical Co., Ltd. of Jining 101 supplies
31000 fluorine class wetting agents, zinc stearate selection Shijiazhuang product one hundred Chemical Industry Science Co., Ltd supply 1800 zinc stearates, tannic acid
The BW-100 tannin acid inhibitors of inhibitor selection Xiamen Ai Kema industrial chemicals Co., Ltd supply, amine neutralizer selection Guangzhou
The DeuAdd MA-95 amine neutralizers of gold Senge Chemical Co., Ltd. of city supply, the levelling agent selection sharp poly- chemical science and technology in Guangzhou have
The DCA-133 organic silicon modified by polyether levelling agents of limit company supply, the supply of levelling agent selection Shanghai great Pan Chemical Co., Ltd.s
DP-490 acrylic acid levelling agents, polyurethane stick and acrylic tackifiers select federal Fine Chemical Co., Ltd in Guangdong
The polyurethane stick and acrylic tackifiers of supply.
High speed dispersor and 300 mesh filter screens select commercially available.
Each raw material is weighed so that the parts by weight of each raw material are as follows：35 parts of water-based acrylic resin, aqueous polyurethane
20 parts of resin, 0.3 part of defoamer, 0.2 part of substrate wetting agents, 2 parts of dipropylene, 2 parts of dipropylene glycol methyl ether, alcohol ester 12
1 part, 0.5 part of mould inhibitor, 0.3 part of wetting agent, 1 part of zinc stearate, 0.5 part of tannin acid inhibitor, 0.1 part of amine neutralizer, levelling
0.2 part of agent, 0.2 part of polyurethane stick, 0.3 part of acrylic tackifiers, 10 parts of deionized water.
The preparation method of novel aqueous one pack system seal coat, comprises the following steps：
Step a, addition DPG determines ether, dipropylene glycol methyl ether, alcohol ester 12, mould inhibitor and wetting agent in charging basket,
Then by high speed dispersor for the first time disperse, the time disperseed for the first time is 10 minutes, when for the first time disperseing is divided at a high speed
The rate of dispersion for dissipating machine is 500 revs/min；
Step b, then water-based acrylic resin is added in barrel, waterborne polyurethane resin and defoamer, then pass through height
Fast dispersion machine disperse for the second time, and second of scattered time is 20 minutes, and high speed dispersor is scattered when disperseing for the second time
Speed is 800 revs/min；
Step c, then substrate wetting agents are added in barrel, then carrying out third time by high speed dispersor disperses, and the 3rd
Secondary jitter time is 5 minutes, and the rate of dispersion of high speed dispersor is 500 rev/min when third time is scattered；
Step d, then zinc stearate is added in barrel, then by high speed dispersor carry out the 4th time it is scattered, described the
Four jitter times are 20 minutes, the 4th time it is scattered when high speed dispersor rate of dispersion be 800 revs/min；
Step e, then tannin acid inhibitor is added in barrel, then carrying out the 5th time by high speed dispersor disperses, the
Five jitter times are 5 minutes, the 5th time it is scattered when high speed dispersor rate of dispersion be 600 revs/min；
Step f, then amine neutralizer is gradually added pH value to be adjusted in barrel, the first mixture is obtained, is ensured
The pH of first mixture is 8；
Step g, then levelling agent, polyurethane stick and acrylic tackifiers regulation viscosity are gradually added in barrel, obtain
To the second mixture, the second mixture viscosity of guarantee is 420mm2/S；
Step h, mixture is filtered by 300 mesh filter screens, obtains finished product.
And in stepb, can be included in second it is scattered after, carry out shrinkage cavity test, if it is observed that without shrinkage cavity phenomenon,
Step c is then carried out, if there is shrinkage cavity phenomenon, then carries out first time additional dispersion, high speed dispersor during first time additional dispersion
Rate of dispersion be 800 revs/min, jitter time is 5 minutes, carries out shrinkage cavity test again after first time additional dispersion, if
Still there is shrinkage cavity phenomenon and then carry out first time additional dispersion again, repeat the above steps, until shrinkage cavity phenomenon eliminates.
In step d, it can be included in the 4th time after disperseing, carry out fineness test, be less than when fineness measures fineness
30 μm, then step e is carried out, if fineness measures fineness more than 30 μm, carry out second of additional dispersion, second extra
The rate of dispersion of high speed dispersor is 800 revs/min when scattered, and jitter time is 5 minutes, is entered again after second of additional dispersion
Row fineness is tested, and is carried out first time additional dispersion again if result is still more than 30 μm, is repeated this above-mentioned steps, until surveying
Obtain fineness and be less than 30 μm, be less than 30 μm with the fineness for the novel aqueous one pack system seal coat for ensureing finally to obtain.
Embodiment 2
The AR- of water-based acrylic resin selection Dongguan City Fang Jing synthetic materials Science and Technology Ltd. supply in the present invention
615W water-based acrylic resins, the AMS-2099 of waterborne polyurethane resin selection Guangdong Yue Mei Chemical Co., Ltd.s supply are water-based poly-
Urethane resin, defoamer select the B-315 organic silicon defoamers of federal Fine Chemical Co., Ltd's supply in Guangdong, base material wetting
The SJS-245 organosilicon substrate wetting agents of agent selection Luoyang Sheng Jia Chemical Co., Ltd.s supply, dipropylene and dipropyl two
Alcohol methyl ether selects the dipropylene and dipropylene glycol methyl ether that Chi Li Chemical Co., Ltd.s of Shenzhen supply, and alcohol ester 12 selects
Selecting Guangzhou, this dredges the TEXANOL alcohol esters 12 that trade Co., Ltd supplies, and mould inhibitor selection Ji new east station of Guangzhou song chemical science and technology is limited
The KF-96 Kathon CG class mould inhibitors of company's supply, wetting agent select the Capstone FS- that the Chemical Co., Ltd. of Jining 101 supplies
31000 fluorine class wetting agents, zinc stearate selection Shijiazhuang product one hundred Chemical Industry Science Co., Ltd supply 1800 zinc stearates, tannic acid
The BW-100 tannin acid inhibitors of inhibitor selection Xiamen Ai Kema industrial chemicals Co., Ltd supply, amine neutralizer selection Guangzhou
The DeuAdd MA-95 amine neutralizers of gold Senge Chemical Co., Ltd. of city supply, the levelling agent selection sharp poly- chemical science and technology in Guangzhou have
The DCA-133 organic silicon modified by polyether levelling agents of limit company supply, the supply of levelling agent selection Shanghai great Pan Chemical Co., Ltd.s
DP-490 acrylic acid levelling agents, polyurethane stick and acrylic tackifiers select federal Fine Chemical Co., Ltd in Guangdong
The polyurethane stick and acrylic tackifiers of supply.
High speed dispersor and 300 mesh filter screens select commercially available.
Each raw material is weighed so that the parts by weight of each raw material are as follows：45 parts of water-based acrylic resin, aqueous polyurethane
30 parts of resin, 0.7 part of defoamer, 1 part of substrate wetting agents, 5 parts of dipropylene, 4 parts of dipropylene glycol methyl ether, alcohol ester 12
Part, 1 part of mould inhibitor, 0.6 part of wetting agent, 4 parts of zinc stearate, 1 part of tannin acid inhibitor, 0.5 part of amine neutralizer, levelling agent 0.5
Part, 0.5 part of polyurethane stick, 0.8 part of acrylic tackifiers, 20 parts of deionized water.
The preparation method of novel aqueous one pack system seal coat, comprises the following steps：
Step a, addition DPG determines ether, dipropylene glycol methyl ether, alcohol ester 12, mould inhibitor and wetting agent in charging basket,
Then by high speed dispersor for the first time disperse, the time disperseed for the first time is 30 minutes, when for the first time disperseing is divided at a high speed
The rate of dispersion for dissipating machine is 800 revs/min；
Step b, then water-based acrylic resin is added in barrel, waterborne polyurethane resin and defoamer, then pass through height
Fast dispersion machine disperse for the second time, and second of scattered time is 20 minutes, and high speed dispersor is scattered when disperseing for the second time
Speed is 1000 revs/min；
Step c, then substrate wetting agents are added in barrel, then carrying out third time by high speed dispersor disperses, and the 3rd
Secondary jitter time is 5 minutes, and the rate of dispersion of high speed dispersor is 800 rev/min when third time is scattered；
Step d, then zinc stearate is added in barrel, then by high speed dispersor carry out the 4th time it is scattered, described the
Four jitter times are 20 minutes, the 4th time it is scattered when high speed dispersor rate of dispersion be 1000 revs/min；
Step e, then tannin acid inhibitor is added in barrel, then carrying out the 5th time by high speed dispersor disperses, the
Five jitter times are 5 minutes, the 5th time it is scattered when high speed dispersor rate of dispersion be 800 revs/min；
Step f, then amine neutralizer is gradually added pH value to be adjusted in barrel, the first mixture is obtained, is ensured
The pH of first mixture is 9；
Step g, then levelling agent, polyurethane stick and acrylic tackifiers regulation viscosity are gradually added in barrel, obtain
To the second mixture, the second mixture viscosity of guarantee is 470mm2/S；
Step h, mixture is filtered by 300 mesh filter screens, obtains finished product.
And in stepb, can be included in second it is scattered after, carry out shrinkage cavity test, if it is observed that without shrinkage cavity phenomenon,
Step c is then carried out, if there is shrinkage cavity phenomenon, then carries out first time additional dispersion, high speed dispersor during first time additional dispersion
Rate of dispersion be 1000 revs/min, jitter time is 5 minutes, carries out shrinkage cavity test again after first time additional dispersion, if
Still there is shrinkage cavity phenomenon and then carry out first time additional dispersion again, repeat the above steps, until shrinkage cavity phenomenon eliminates.
In step d, it can be included in the 4th time after disperseing, carry out fineness test, be less than when fineness measures fineness
30 μm, then step e is carried out, if fineness measures fineness more than 30 μm, carry out second of additional dispersion, second extra
The rate of dispersion of high speed dispersor is 1000 revs/min when scattered, and jitter time is 5 minutes, after second of additional dispersion again
Fineness test is carried out, first time additional dispersion is carried out again if result is still more than 30 μm, repeats this above-mentioned steps, until
Fineness is measured less than 30 μm, is less than 30 μm with the fineness for the novel aqueous one pack system seal coat for ensureing finally to obtain.
Embodiment 3
The AR- of water-based acrylic resin selection Dongguan City Fang Jing synthetic materials Science and Technology Ltd. supply in the present invention
615W water-based acrylic resins, the AMS-2099 of waterborne polyurethane resin selection Guangdong Yue Mei Chemical Co., Ltd.s supply are water-based poly-
Urethane resin, defoamer select the B-315 organic silicon defoamers of federal Fine Chemical Co., Ltd's supply in Guangdong, base material wetting
The SJS-245 organosilicon substrate wetting agents of agent selection Luoyang Sheng Jia Chemical Co., Ltd.s supply, dipropylene and dipropyl two
Alcohol methyl ether selects the dipropylene and dipropylene glycol methyl ether that Chi Li Chemical Co., Ltd.s of Shenzhen supply, and alcohol ester 12 selects
Selecting Guangzhou, this dredges the TEXANOL alcohol esters 12 that trade Co., Ltd supplies, and mould inhibitor selection Ji new east station of Guangzhou song chemical science and technology is limited
The KF-96 Kathon CG class mould inhibitors of company's supply, wetting agent select the Capstone FS- that the Chemical Co., Ltd. of Jining 101 supplies
31000 fluorine class wetting agents, zinc stearate selection Shijiazhuang product one hundred Chemical Industry Science Co., Ltd supply 1800 zinc stearates, tannic acid
The BW-100 tannin acid inhibitors of inhibitor selection Xiamen Ai Kema industrial chemicals Co., Ltd supply, amine neutralizer selection Guangzhou
The DeuAdd MA-95 amine neutralizers of gold Senge Chemical Co., Ltd. of city supply, the levelling agent selection sharp poly- chemical science and technology in Guangzhou have
The DCA-133 organic silicon modified by polyether levelling agents of limit company supply, the supply of levelling agent selection Shanghai great Pan Chemical Co., Ltd.s
DP-490 acrylic acid levelling agents, polyurethane stick and acrylic tackifiers select federal Fine Chemical Co., Ltd in Guangdong
The polyurethane stick and acrylic tackifiers of supply.
High speed dispersor and 300 mesh filter screens select commercially available.
Each raw material is weighed so that the parts by weight of each raw material are as follows：40 parts of water-based acrylic resin, aqueous polyurethane
25 parts of resin, 0.5 part of defoamer, 0.6 part of substrate wetting agents, 4 parts of dipropylene, 3 parts of dipropylene glycol methyl ether, alcohol ester 12
2 parts, 0.8 part of mould inhibitor, 0.5 part of wetting agent, 3 parts of zinc stearate, 0.8 part of tannin acid inhibitor, 0.3 part of amine neutralizer, levelling
0.4 part of agent, 0.4 part of polyurethane stick, 0.6 part of acrylic tackifiers, 15 parts of deionized water.
The preparation method of novel aqueous one pack system seal coat, comprises the following steps：
Step a, addition DPG determines ether, dipropylene glycol methyl ether, alcohol ester 12, mould inhibitor and wetting agent in charging basket,
Then by high speed dispersor for the first time disperse, the time disperseed for the first time is 20 minutes, when for the first time disperseing is divided at a high speed
The rate of dispersion for dissipating machine is 600 revs/min；
Step b, then water-based acrylic resin is added in barrel, waterborne polyurethane resin and defoamer, then pass through height
Fast dispersion machine disperse for the second time, and second of scattered time is 20 minutes, and high speed dispersor is scattered when disperseing for the second time
Speed is 900 revs/min；
Step c, then substrate wetting agents are added in barrel, then carrying out third time by high speed dispersor disperses, and the 3rd
Secondary jitter time is 5 minutes, and the rate of dispersion of high speed dispersor is 600 rev/min when third time is scattered；
Step d, then zinc stearate is added in barrel, then by high speed dispersor carry out the 4th time it is scattered, described the
Four jitter times are 20 minutes, the 4th time it is scattered when high speed dispersor rate of dispersion be 900 revs/min；
Step e, then tannin acid inhibitor is added in barrel, then carrying out the 5th time by high speed dispersor disperses, the
Five jitter times are 5 minutes, the 5th time it is scattered when high speed dispersor rate of dispersion be 700 revs/min；
Step f, then amine neutralizer is gradually added pH value to be adjusted in barrel, the first mixture is obtained, is ensured
The pH of first mixture is 8；
Step g, then levelling agent, polyurethane stick and acrylic tackifiers regulation viscosity are gradually added in barrel, obtain
To the second mixture, the second mixture viscosity of guarantee is 450mm2/S；
Step h, mixture is filtered by 300 mesh filter screens, obtains finished product.
And in stepb, can be included in second it is scattered after, carry out shrinkage cavity test, if it is observed that without shrinkage cavity phenomenon,
Step c is then carried out, if there is shrinkage cavity phenomenon, then carries out first time additional dispersion, high speed dispersor during first time additional dispersion
Rate of dispersion be 900 revs/min, jitter time is 5 minutes, carries out shrinkage cavity test again after first time additional dispersion, if
Still there is shrinkage cavity phenomenon and then carry out first time additional dispersion again, repeat the above steps, until shrinkage cavity phenomenon eliminates.
In step d, it can be included in the 4th time after disperseing, carry out fineness test, be less than when fineness measures fineness
30 μm, then step e is carried out, if fineness measures fineness more than 30 μm, carry out second of additional dispersion, second extra
The rate of dispersion of high speed dispersor is 900 revs/min when scattered, and jitter time is 5 minutes, is entered again after second of additional dispersion
Row fineness is tested, and is carried out first time additional dispersion again if result is still more than 30 μm, is repeated this above-mentioned steps, until surveying
Obtain fineness and be less than 30 μm, be less than 30 μm with the fineness for the novel aqueous one pack system seal coat for ensureing finally to obtain.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (9)
1. novel aqueous one pack system seal coat, wherein, include the raw materials of following parts by weight：
35 parts~45 parts of water-based acrylic resin, 20 parts~30 parts of waterborne polyurethane resin, 0.3 part~0.7 part of defoamer, base material
0.2 part~1 part of wetting agent, 2 parts~5 parts of dipropylene, 2 parts~4 parts of dipropylene glycol methyl ether, 12 parts~3 parts of alcohol ester,
0.5 part~1 part of mould inhibitor, 0.3 part~0.6 part of wetting agent, 1 part~4 parts of zinc stearate, 0.5 part~1 part of tannin acid inhibitor,
0.1 part~0.5 part of amine neutralizer, 0.2 part~0.5 part of levelling agent, 0.2 part~0.5 part of polyurethane stick, acrylic tackifiers
0.3 part~0.8 part, 10 parts~20 parts of deionized water.
2. novel aqueous one pack system seal coat according to claim 1, wherein, the defoamer defoams for organosilicon
Agent.
3. novel aqueous one pack system seal coat according to claim 1, wherein, the substrate wetting agents are organic silicon substrate
Material wetting agent.
4. novel aqueous one pack system seal coat according to claim 1, wherein, the wetting agent is fluorine class wetting agent.
5. novel aqueous one pack system seal coat according to claim 1, wherein, the mould inhibitor is that Kathon CG class is mould proof
Agent.
6. novel aqueous one pack system seal coat according to claim 1, wherein, the levelling agent is acrylic acid levelling
Agent.
7. novel aqueous one pack system seal coat according to claim 1, wherein, the novel aqueous one pack system closing bottom
The fineness of paint is less than 30 μm, and the pH of the novel aqueous one pack system seal coat is 8~9.
8. the preparation method of novel aqueous one pack system seal coat, wherein, comprise the following steps：
Step a, addition DPG determines ether, dipropylene glycol methyl ether, alcohol ester 12, mould inhibitor and wetting agent in charging basket, then
By high speed dispersor for the first time disperse, the time that the first time disperses is 10 minutes~30 minutes, the first time
Scattered rate of dispersion is 500~800 revs/min；
Step b, then water-based acrylic resin, waterborne polyurethane resin and defoamer are added in barrel, then pass through high speed point
Dissipate machine for the second time disperse, second of the scattered time is 20 minutes, and the rate of dispersion disperseed for the second time is 800
~1000 revs/min；
Step c, then substrate wetting agents are added in barrel, then carrying out third time by high speed dispersor disperses, and the described 3rd
Secondary jitter time is 5 minutes, and the scattered rate of dispersion of the third time is 500~800 rev/min；
Step d, then zinc stearate is added in barrel, then carrying out the 4th time by high speed dispersor disperses, described 4th time
Jitter time is 20 minutes, and the 4th scattered rate of dispersion is 800~1000 revs/min；
Step e, then tannin acid inhibitor is added in barrel, then by high speed dispersor carry out the 5th time it is scattered, described the
Five jitter times are 5 minutes, and the 5th scattered rate of dispersion is 600~800 revs/min；
Step f, then amine neutralizer is added in barrel, the first mixture is obtained, the pH for ensureing mixture is 8~9；
Step g, then be gradually added in barrel levelling agent, polyurethane stick and acrylic tackifiers regulation viscosity, obtain the
Two mixtures, guarantee mixture viscosity are 420mm2/ S~470mm2/S；
Step h, by mixture by being filtered, obtain finished product.
9. the preparation method of novel aqueous one pack system seal coat according to claim 8, wherein, mixed in the step h
Compound is filtered by 300 mesh filter screens.
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| CN110862753A (en) * | 2018-08-27 | 2020-03-06 | 河北晨阳工贸集团有限公司 | Sealing primer capable of sealing organic acid and pigment of wood and preparation method thereof |
| CN111040533A (en) * | 2019-11-18 | 2020-04-21 | 广东东方一哥新材料股份有限公司 | Water-based double-component sealed transparent primer and preparation method thereof |
| CN111154362A (en) * | 2020-01-16 | 2020-05-15 | 上海立邦长润发涂料有限公司 | Water-based single-component tannin-resistant seal primer and preparation method thereof |
| CN112852282A (en) * | 2021-01-25 | 2021-05-28 | 浙江菲达新材料有限公司 | Water-based double-component grease-sealing clear primer and preparation method thereof |
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