CN106519893A - Preparation method of plant modified water-based crackle lacquer - Google Patents
Preparation method of plant modified water-based crackle lacquer Download PDFInfo
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- CN106519893A CN106519893A CN201610923076.0A CN201610923076A CN106519893A CN 106519893 A CN106519893 A CN 106519893A CN 201610923076 A CN201610923076 A CN 201610923076A CN 106519893 A CN106519893 A CN 106519893A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1477—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing nitrogen
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- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The invention discloses a preparation method of plant modified water-based crackle lacquer and belongs to the technical field of coating preparation. Lotus root and soybeans are fermented, a fermented supernatant fluid is obtained and then mixed with garcinia cambogia juice to obtain a mixture; then the mixture and natural resin of peach gum are mixed for modification to obtain a product, and epoxy resin is modified under the action of a microorganism through the product to obtain modified epoxy resin; and finally, the modified epoxy resin, water-based color paste and other raw materials are blended to obtain base coat, finishing coat is prepared through fluorocarbon resin, and the crackle lacquer can be obtained through combination of the base coat and the finishing coat. The epoxy resin is modified through amino acid in the fermented fluid of the lotus root and soybeans and hydroxycitric acid in garcinia cambogia under the action of the microorganism, various active groups in the epoxy resin are added, the base coat is prepared through the modified epoxy resin so that the chemical bonding force between the crackle lacquer and a base body can be increased, accordingly the attachment force of the crackle lacquer is increased, after curing of the base coat, excellent alkali resistance and attachment force are achieved, extremely low VOC and good flexibility are also achieved, the phenomenon that a lacquer face falls off after cracking of the crackles is avoided, and the application prospects are wide.
Description
Technical field
The invention discloses a kind of preparation method of plant modified water-soluble crackle paint, belongs to technical field of paint preparation.
Background technology
Recently as the development and growth in the living standard of national economy, the style of building decoration is maked rapid progress, decoration
Used in description of materials it is more and more, crackle paint also stealthily decoration industry rise, it is as good-looking crackle can be formed, right
Body surface serves protection and decoration function, improves value-added content of product again, so the favor of users is obtained, gradually
A kind of top grade decoration material commonly used in becoming building decoration.
Crackle paint is a kind of artistic coating, and the decoration and protectiveness that can be used for glass, door and window, cement wall surface and furniture etc. is applied
Dress, also has application in furniture and interior decoration.Crackle paint is by nitrocotton, pigment, extender pigment, organic solvent, adjuvant
In the nitro crack paint of the formed shades of colour of grinding modulation, also just so crackle paint also has some of nitrate paint
Fundamental characteristics, belongs to volatility air-drying varnish, need not reinforce agent, and rate of drying is fast.Therefore crackle paint must be in same characteristic
Could merge completely and represent another crackle characteristic of crackle paint in one or more layers nitrate paint surface.Due to crackle paint mealiness content
Height, the volatility of solvent are big, thus its contractility is big, and pliability is little, and after spraying, internal stress produces higher tear-strength,
Form good, uniform crack pattern.
, mainly based on oiliness, the VOC effect on environment of generation is very huge, and security performance is relatively low, and matches somebody with somebody for existing crackle paint
Need the effect of crackle is can be only achieved using the face such as a large amount of flatting silicas (filling out) material in side, this traditional solvent-borne type crackle paint is not only
Quality is crisp, and adhesive force is also bad, and lacquer painting obscission after crack initiation usually occurs.
The content of the invention
Present invention mainly solves technical problem：For current existing crackle paint mainly based on oiliness, VOC pair is produced
Environmental effect is huge, and security performance is relatively low, and needs to can be only achieved crackle using the face such as a large amount of flatting silicas (filling out) material in formula
Effect, and existing crackle paint quality is crisp, adhesive force is poor, the problem that lacquer painting comes off after crack initiation often occurs, there is provided
The preparation method of kind of plant modified water-soluble crackle paint, the method by fermenting Rhizoma Nelumbiniss and Semen Glyciness obtain fermented supernatant fluid, by itself and
It is after the mixing of Resina garciniae fruit juice, first mixed and modified with natural resin Resina persicae, then epoxy resin is modified in the presence of microorganism with which,
Epoxy resin and aqueous color paste and other raw material compoundings are finally obtained priming paint, then use fluorocarbon resin by prepared modified epoxy
Prepared finish paint, is used in conjunction with crackle paint is obtained, and the present invention is using the aminoacid and Fructus Resina garciniae in Rhizoma Nelumbiniss and Semen Glyciness fermentation liquid
In hydroxycitric acid under microbial action to epoxy resin modification, increase the various active group in epoxy resin, use which
Prepared priming paint increases Chemical bonding between crackle paint and matrix so as to improve its adhesive force, has excellent resistance to after solidifying priming paint
Alkalescence, adhesive force and high pliability, and with extremely low VOC, easy construction easy cleaning, be not in paint after crack initiation
Face obscission, has broad application prospects.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is：
(1) weigh after the fresh Rhizoma Nelumbiniss deionized waters of 800～900g are cleaned and cut two ends, expose Rhizoma Nelumbiniss hole, then take 100～
200g Semen Glyciness 3～5L deionized waters soak, and the Semen Glyciness after immersion are filled in the Rhizoma Nelumbiniss hole after cleaning
In, Rhizoma Nelumbiniss are cut into into the thin slice that thickness is 3～5mm with knife finally, by thin slice evenly laid out in fermentation tank, then are added in tank
Thin slice is totally submerged by distilled water, and sealing tank mouth was in 35～40 DEG C of bottom fermentations 12～15 days；
(2) it is separated by filtration after the completion for the treatment of above-mentioned fermentation and obtains filtrate, with centrifuge with 2000～3000r/min rotating speed centrifugal treating
10～15min, isolated supernatant, then weigh the enucleation of 300～400g Fructus Resina garciniaes and squeeze the juice, filtrate is filtrated to get, by volume
Than for 3:1, by supernatant and filtrate mix homogeneously, obtains plant source modification liquid；
(3) it is 10 in mass ratio by above-mentioned plant source modification liquid and Resina persicae:Fermentation tank is moved into after 1 mixing, is 30～40 in temperature
DEG C, relative air humidity be 60～70% under conditions of natural fermentation react 7～9 days, after fermentation ends again in fermentation tank plus
Enter the bisphenol A type epoxy resin of 10～15 times of tunning gross mass and stir as fermentation substrate, by inoculum concentration be
10% accesses bacillus subtilises in substrate, and sealing tank mouth continues fermentation at 35～40 DEG C and is modified 15～20 days, fermentation knot
After beam, high temperature sterilize obtains final product modified epoxy, standby；
(4) count by weight, weigh 20～30 parts of acrylic paints, 1～2 part of microcrystalline wax, 0.3～0.5 part of emulsified silicone oil and
40～50 parts of deionized water agitators are obtained aqueous color paste after stirring；
(5) count by weight, weigh 10～20 parts of above-mentioned aqueous color pastes, 60～80 parts of standby modified epoxies, 1～3
Part sodium carboxymethyl cellulose, 1～2 part of propandiol butyl ether, 0.5～0.8 part of Propylene Glycol and 10～12 parts of aliphatic diamines are poured into successively
Discharging after 1～2h is ground in colloid mill obtains priming paint, then weigh 20～30 parts of above-mentioned aqueous color pastes, 50～80 parts of fluorocarbon resins, 1
～2 parts of sodium carboxymethyl cellulose and 1～2 part of Propylene Glycol discharge after 1～2h is ground in being sequentially placed into colloid mill, obtain finish paint；
(6) first one layer of priming paint is brushed on base material when using, the spray paint again after priming paint surface drying, by the base material after application 60
Surface drying is dried at～70 DEG C, then 30～40min is placed at 20～30 DEG C there can be crack effect to produce, and obtain final product plant modified water
Property crackle paint.
Obtained in of the invention, crackle paint crack effect is good, adhesive force up to 0～1 grade, paint film soaks 96 under rainwater environment～
120h is unchanged, excellent water resistance, while crackle paint obtained in the present invention has preferable abrasion resistance, scrubs 2000～2500
After secondary, paint film is not damaged phenomenon, and crackle paint ageing-resistant performance is excellent, uses 8～10 years under natural climate condition, paint
Face is without foaming, peeling phenomenon.
The present invention principle be：Due to indoor air draft effect (or with spray gun featheriness coating surface), crackle paint table is forced
Face solvent volatilizees rapidly, as the volatilization of finish paint solvent absorbs heat, causes coating surface temperature drop, and prime coat is without straight
Ingress of air is connect, temperature drop is not obvious, cause the cooling of top coat layer to be faster than prime coat, along with finish paint surface ply stress is more than
Prime coat, so top coat layer shrinkage ratio prime coat is fast, causes the generation of crackle.
The invention has the beneficial effects as follows：
(1) crackle paint lines nature obtained in the present invention, crackle are uniform, and stereoeffect is good, and paint film flexibility is good, is difficult brittle stripping
Fall and with excellent resistance to ag(e)ing, water-fast and alkali resistance；
(2) preparation process is simple of the present invention, the natural safety of raw material, obtained crackle paint VOC content are relatively low, with excellent attachment
Power, paint film are plentiful, drying time is fast, convenient and quick construction, can effectively improve efficiency of construction.
Specific embodiment
Weighed after the fresh Rhizoma Nelumbiniss deionized waters of 800～900g are cleaned first and cut two ends, exposed Rhizoma Nelumbiniss hole, then take
100～200g Semen Glyciness, 3～5L deionized waters soak, and the Semen Glyciness after immersion are filled in the Rhizoma Nelumbiniss after cleaning
In hole, Rhizoma Nelumbiniss are cut into into the thin slice that thickness is 3～5mm with knife finally, by thin slice evenly laid out in fermentation tank, then in tank
Distilled water is added to be totally submerged thin slice, sealing tank mouth was in 35～40 DEG C of bottom fermentations 12～15 days；Treat mistake after the completion of above-mentioned fermentation
Isolated filtrate is filtered, with centrifuge with 2000～3000r/min rotating speed 10～15min of centrifugal treating, isolated supernatant,
The enucleation of 300～400g Fructus Resina garciniaes is weighed again and is squeezed the juice, be filtrated to get filtrate, be 3 by volume:Supernatant and filtrate are mixed by 1
Uniformly, obtain plant source modification liquid；Subsequent is 10 by above-mentioned plant source modification liquid and Resina persicae in mass ratio:Move into after 1 mixing and send out
Fermentation tank, temperature be 30～40 DEG C, relative air humidity be 60～70% under conditions of natural fermentation react 7～9 days, fermentation knot
Shu Houzai adds the bisphenol A type epoxy resin of 10～15 times of tunning gross mass in fermentation tank and stirs as fermentation
Substrate, to substrate in accesses bacillus subtilises for 10% by inoculum concentration, and it is modified that sealing tank mouth continues fermentation at 35～40 DEG C
15～20 days, after fermentation ends, high temperature sterilize obtained final product modified epoxy, standby；Count by weight again, weigh 20～30 parts
Acrylic paints, 1～2 part of microcrystalline wax, 0.3～0.5 part of emulsified silicone oil and 40～50 parts of deionized waters are stirred with agitator
Aqueous color paste is obtained afterwards；Count by weight again, weigh 10～20 parts of above-mentioned aqueous color pastes, 60～80 parts of standby modified epoxies
Resin, 1～3 part of sodium carboxymethyl cellulose, 1～2 part of propandiol butyl ether, 0.5～0.8 part of Propylene Glycol and 10～12 parts of aliphatic diamines
Pour discharging after 1～2h being ground in colloid mill successively into and obtain priming paint, then weigh 20～30 parts of above-mentioned aqueous color pastes, 50～80 parts of fluorine
Carbon resin, 1～2 part of sodium carboxymethyl cellulose and 1～2 part of Propylene Glycol discharge after 1～2h is ground in being sequentially placed into colloid mill, obtain
Finish paint；First brush one layer of priming paint on base material during use, the spray paint again after priming paint surface drying, by the base material after application 60～
Surface drying is dried at 70 DEG C, then 30～40min is placed at 20～30 DEG C there can be crack effect to produce, and obtain final product plant modified water-soluble
Crackle paint.
Example 1
Weighed after the fresh Rhizoma Nelumbiniss deionized waters of 800g are cleaned first and cut two ends, expose Rhizoma Nelumbiniss hole, then to take 100g yellow
Bean is filled in the Semen Glyciness after immersion in the Rhizoma Nelumbiniss hole after cleaning, finally with knife by lotus with taking out after 3L deionized waters immersion 36h
Rhizoma Nelumbinis are cut into the thin slice that thickness is 3mm, by thin slice evenly laid out in fermentation tank, then in tank, add distilled water to soak thin slice completely
Not yet, tank mouth is sealed in 35 DEG C of bottom fermentations 12 days；It is separated by filtration after the completion for the treatment of above-mentioned fermentation and obtains filtrate, with centrifuge with 2000r/
Min rotating speed centrifugal treating 10min, isolated supernatant, then weigh the enucleation of 300g Fructus Resina garciniaes and squeeze the juice, filtrate is filtrated to get,
It is 3 by volume:1, by supernatant and filtrate mix homogeneously, obtains plant source modification liquid；Subsequently by above-mentioned plant source modification liquid and
Resina persicae is 10 in mass ratio:1 mixing after move into fermentation tank, temperature be 30 DEG C, relative air humidity be 60% under conditions of from
So fermentation reaction 7 days, adds the bisphenol A type epoxy resin of 10 times of tunning gross mass simultaneously again in fermentation tank after fermentation ends
Stir as fermentation substrate, to substrate in access bacillus subtilises for 10% by inoculum concentration, sealing tank mouth is at 35 DEG C
Continue fermentation modified 15 days, high temperature sterilize obtains final product modified epoxy after fermentation ends, standby；Count by weight again, weigh
20 parts of acrylic paints, 1 part of microcrystalline wax, 0.3 part of emulsified silicone oil and 40 parts of deionized water agitators are obtained water after stirring
Property mill base；Count by weight again, weigh 10 parts of above-mentioned aqueous color pastes, 60 parts of standby modified epoxies, 1 part of carboxymethyl fibre
The plain sodium of dimension, 1 part of propandiol butyl ether, 0.5 part of Propylene Glycol and 10 parts of aliphatic diamines are poured into after grinding 1h in colloid mill successively and are discharged
To priming paint, then weigh 20 parts of above-mentioned aqueous color pastes, 50 parts of fluorocarbon resins, 1 part of sodium carboxymethyl cellulose and 1 part of Propylene Glycol and put successively
Discharge after 1h is ground in entering colloid mill, obtain finish paint；First one layer of priming paint is brushed on base material during use, sprayed after priming paint surface drying again
Base material after application is dried to surface drying at 60 DEG C by overpainting, then 30min is placed at 20 DEG C can have crack effect to produce,
Obtain final product plant modified water-soluble crackle paint.
Obtained in of the invention, crackle paint crack effect is good, and up to 1 grade, paint film soaks 96h under rainwater environment without change to adhesive force
Change, excellent water resistance, while crackle paint obtained in the present invention has preferable abrasion resistance, after scrubbing 2000 times, paint film is not sent out
It is raw to damage phenomenon, and crackle paint ageing-resistant performance is excellent, uses 8 years under natural climate condition, lacquer painting is existing without foaming, peeling
As.
Example 2
Weighed after the fresh Rhizoma Nelumbiniss deionized waters of 850g are cleaned first and cut two ends, expose Rhizoma Nelumbiniss hole, then to take 150g yellow
Bean is filled in the Semen Glyciness after immersion in the Rhizoma Nelumbiniss hole after cleaning, finally with knife by lotus with taking out after 4L deionized waters immersion 42h
Rhizoma Nelumbinis are cut into the thin slice that thickness is 4mm, by thin slice evenly laid out in fermentation tank, then in tank, add distilled water to soak thin slice completely
Not yet, tank mouth is sealed in 38 DEG C of bottom fermentations 14 days；It is separated by filtration after the completion for the treatment of above-mentioned fermentation and obtains filtrate, with centrifuge with 2500r/
Min rotating speed centrifugal treating 13min, isolated supernatant, then weigh the enucleation of 350g Fructus Resina garciniaes and squeeze the juice, filtrate is filtrated to get,
It is 3 by volume:1, by supernatant and filtrate mix homogeneously, obtains plant source modification liquid；Subsequently by above-mentioned plant source modification liquid and
Resina persicae is 10 in mass ratio:1 mixing after move into fermentation tank, temperature be 35 DEG C, relative air humidity be 65% under conditions of from
So fermentation reaction 8 days, adds the bisphenol A type epoxy resin of 13 times of tunning gross mass simultaneously again in fermentation tank after fermentation ends
Stir as fermentation substrate, to substrate in access bacillus subtilises for 10% by inoculum concentration, sealing tank mouth is at 38 DEG C
Continue fermentation modified 18 days, high temperature sterilize obtains final product modified epoxy after fermentation ends, standby；Count by weight again, weigh
25 parts of acrylic paints, 1.5 parts of microcrystalline waxes, 0.4 part of emulsified silicone oil and 45 parts of deionized water agitators are obtained after stirring
Aqueous color paste；Count by weight again, weigh 15 parts of above-mentioned aqueous color pastes, 70 parts of standby modified epoxies, 2 parts of carboxymethyls
Sodium cellulosate, 1.5 parts of propandiol butyl ethers, 0.7 part of Propylene Glycol and 11 parts of aliphatic diamines are poured into after grinding 1.5h in colloid mill successively
Discharging obtains priming paint, then weighs 25 parts of above-mentioned aqueous color pastes, 65 parts of fluorocarbon resins, 1.5 parts of sodium carboxymethyl cellulose and 1.5 part third
Glycol discharges after 1.5h is ground in being sequentially placed into colloid mill, obtains finish paint；First one layer of priming paint is brushed on base material during use, treat bottom
Base material after application is dried to surface drying at 65 DEG C by spray paint again after paint surface drying, then 35min is placed at 25 DEG C can have and split
Stricture of vagina effect is produced, and obtains final product plant modified water-soluble crackle paint.
Obtained in of the invention, crackle paint crack effect is good, and up to 0 grade, paint film soaks 108h under rainwater environment without change to adhesive force
Change, excellent water resistance, while crackle paint obtained in the present invention has preferable abrasion resistance, after scrubbing 2250 times, paint film is not sent out
It is raw to damage phenomenon, and crackle paint ageing-resistant performance is excellent, uses 9 years under natural climate condition, lacquer painting is existing without foaming, peeling
As.
Example 3
Weighed after the fresh Rhizoma Nelumbiniss deionized waters of 900g are cleaned first and cut two ends, expose Rhizoma Nelumbiniss hole, then to take 200g yellow
Bean is filled in the Semen Glyciness after immersion in the Rhizoma Nelumbiniss hole after cleaning, finally with knife by lotus with taking out after 5L deionized waters immersion 48h
Rhizoma Nelumbinis are cut into the thin slice that thickness is 5mm, by thin slice evenly laid out in fermentation tank, then in tank, add distilled water to soak thin slice completely
Not yet, tank mouth is sealed in 40 DEG C of bottom fermentations 15 days；It is separated by filtration after the completion for the treatment of above-mentioned fermentation and obtains filtrate, with centrifuge with 3000r/
Min rotating speed centrifugal treating 15min, isolated supernatant, then weigh the enucleation of 400g Fructus Resina garciniaes and squeeze the juice, filtrate is filtrated to get,
It is 3 by volume:1, by supernatant and filtrate mix homogeneously, obtains plant source modification liquid；Subsequently by above-mentioned plant source modification liquid and
Resina persicae is 10 in mass ratio:1 mixing after move into fermentation tank, temperature be 40 DEG C, relative air humidity be 70% under conditions of from
So fermentation reaction 9 days, adds the bisphenol A type epoxy resin of 15 times of tunning gross mass simultaneously again in fermentation tank after fermentation ends
Stir as fermentation substrate, to substrate in access bacillus subtilises for 10% by inoculum concentration, sealing tank mouth is at 40 DEG C
Continue fermentation modified 20 days, high temperature sterilize obtains final product modified epoxy after fermentation ends, standby；Count by weight again, weigh
30 parts of acrylic paints, 2 parts of microcrystalline waxes, 0.5 part of emulsified silicone oil and 50 parts of deionized water agitators are obtained water after stirring
Property mill base；Count by weight again, weigh 20 parts of above-mentioned aqueous color pastes, 80 parts of standby modified epoxies, 3 parts of carboxymethyl fibres
The plain sodium of dimension, 2 parts of propandiol butyl ethers, 0.8 part of Propylene Glycol and 12 parts of aliphatic diamines are poured into after grinding 2h in colloid mill successively and are discharged
To priming paint, then weigh 30 parts of above-mentioned aqueous color pastes, 80 parts of fluorocarbon resins, 2 parts of sodium carboxymethyl cellulose and 2 parts of Propylene Glycol and put successively
Discharge after 2h is ground in entering colloid mill, obtain finish paint；First one layer of priming paint is brushed on base material during use, sprayed after priming paint surface drying again
Base material after application is dried to surface drying at 70 DEG C by overpainting, then 40min is placed at 30 DEG C can have crack effect to produce,
Obtain final product plant modified water-soluble crackle paint.
Obtained in of the invention, crackle paint crack effect is good, and up to 0 grade, paint film soaks 120h under rainwater environment without change to adhesive force
Change, excellent water resistance, while crackle paint obtained in the present invention has preferable abrasion resistance, after scrubbing 2500 times, paint film is not sent out
It is raw to damage phenomenon, and crackle paint ageing-resistant performance is excellent, uses 10 years under natural climate condition, lacquer painting is existing without foaming, peeling
As.
Claims (1)
1. a kind of preparation method of plant modified water-soluble crackle paint, it is characterised in that concrete preparation process is：
（1）Weigh after the fresh Rhizoma Nelumbiniss deionized waters of 800～900g are cleaned and cut two ends, expose Rhizoma Nelumbiniss hole, then take 100～
200g Semen Glyciness 3～5L deionized waters soak, and the Semen Glyciness after immersion are filled in the Rhizoma Nelumbiniss hole after cleaning
In, Rhizoma Nelumbiniss are cut into into the thin slice that thickness is 3～5mm with knife finally, by thin slice evenly laid out in fermentation tank, then are added in tank
Thin slice is totally submerged by distilled water, and sealing tank mouth was in 35～40 DEG C of bottom fermentations 12～15 days；
（2）It is separated by filtration after the completion for the treatment of above-mentioned fermentation and obtains filtrate, with centrifuge with 2000～3000r/min rotating speed centrifugal treating
10～15min, isolated supernatant, then weigh the enucleation of 300～400g Fructus Resina garciniaes and squeeze the juice, filtrate is filtrated to get, by volume
Than for 3:1, by supernatant and filtrate mix homogeneously, obtains plant source modification liquid；
（3）It is 10 in mass ratio by above-mentioned plant source modification liquid and Resina persicae:Fermentation tank is moved into after 1 mixing, is 30～40 in temperature
DEG C, relative air humidity be 60～70% under conditions of natural fermentation react 7～9 days, after fermentation ends again in fermentation tank add
The bisphenol A type epoxy resin that 10～15 times of tunning gross mass simultaneously stirs as fermentation substrate, by inoculum concentration be 10% to
Bacillus subtilises are accessed in substrate, sealing tank mouth continues fermentation at 35～40 DEG C and is modified 15～20 days, high after fermentation ends
Warm sterilizing, thus obtaining the product modified epoxy, it is standby；
（4）Count by weight, weigh 20～30 parts of acrylic paints, 1～2 part of microcrystalline wax, 0.3～0.5 part of emulsified silicone oil and
40～50 parts of deionized water agitators are obtained aqueous color paste after stirring；
（5）Count by weight, weigh 10～20 parts of above-mentioned aqueous color pastes, 60～80 parts of standby modified epoxies, 1～3
Part sodium carboxymethyl cellulose, 1～2 part of propandiol butyl ether, 0.5～0.8 part of Propylene Glycol and 10～12 parts of aliphatic diamines are poured into successively
Discharging after 1～2h is ground in colloid mill obtains priming paint, then weigh 20～30 parts of above-mentioned aqueous color pastes, 50～80 parts of fluorocarbon resins, 1
～2 parts of sodium carboxymethyl cellulose and 1～2 part of Propylene Glycol discharge after 1～2h is ground in being sequentially placed into colloid mill, obtain finish paint；
（6）First one layer of priming paint is brushed on base material during use, the spray paint again after priming paint surface drying, by the base material after application 60
Surface drying is dried at～70 DEG C, then 30～40min is placed at 20～30 DEG C there can be crack effect to produce, and obtain final product plant modified water
Property crackle paint.
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| CN103232787A (en) * | 2013-04-11 | 2013-08-07 | 三棵树涂料股份有限公司 | Aqueous crackle coating |
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| CN104610820A (en) * | 2015-01-13 | 2015-05-13 | 武汉怡可漆科技有限公司 | Water-based crack lacquer as well as preparation method and construction method thereof |
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Application publication date: 20170322 |