CN106565893B - A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion and preparation method thereof - Google Patents
A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion and preparation method thereof Download PDFInfo
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- CN106565893B CN106565893B CN201610916936.8A CN201610916936A CN106565893B CN 106565893 B CN106565893 B CN 106565893B CN 201610916936 A CN201610916936 A CN 201610916936A CN 106565893 B CN106565893 B CN 106565893B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- 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
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
Abstract
The invention discloses a kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsions and preparation method thereof.Its raw material is composed of the following parts by weight: 8~13 parts of styrene, 21~26 parts of butyl methacrylate, 2~7 parts of butyl acrylate, 1~5 part of Isooctyl acrylate monomer, 1~5 part of acrylic acid, 1~3 part of phosphoric acid ester function monomer, 1~3 part of emulsifier, 0.3~0.6 part of persulfate, 0.1~0.3 part of oxidant, 0.10~0.3 part of reducing agent, 53 parts of water.Phosphoric acid ester function monomer is grafted in acrylic based emulsion particle using polymerization reaction; make the metallic paint being configured to and metal ion that there is good complexing; form very fine and close protective film; gloss controlling technology is used simultaneously; not only the antiseptic properties such as excellent water resistance, resistance to salt water and salt fog resistance ensure that, but also there is good glossiness and hardness simultaneously.It is configured to after coating directly spray or brush on the metal surface together, forms fine and close and flat and smooth paint film, be a kind of metallic paint waterborne styrene-acrylic emulsion for combining priming paint and finishing coat performance requirement.
Description
Technical field
The present invention relates to the polymer emulsion technical fields more particularly to a kind of bottom surface unification metallic paint for anti-corrosion of metal
With waterborne styrene-acrylic emulsion and preparation method thereof.
Background technique
In recent years, with the white heat of the fast development of industrial trade and increasingly harsh and market the competition of requirement for anticorrosion
Change, the especially gloss of metal surface paint film, hardness, the requirement of anti-rust and corrosionproperties is higher and higher, and aqueous metallic paint should have
There is the excellent antiseptic property of priming paint, meets the gloss of finishing coat and the requirement of hardness simultaneously again.Patent application
CN102432743A discloses a kind of waterborne metal anti-corrosive paint polymer emulsion and preparation method thereof, and raw material presses quality percentage
Than, including 13.0~18.0% modified pre-polymerization intermediate of stemness oleic acid, 16.0~20.0% acrylate monomer, 2.0~
The function monomer of 3.0% ketocarbonyl-containing, 2.5~5.0% modified acroleic acid ester monomer, 1.5~2.5% reactivity emulsification
Agent, 0.2~0.3% initiator, 0.8~1.0% compound containing diazanyl, 0.5~1.5% aqueous drier and
0.5~1.2% volatile base and the deionized water of surplus.Patent application CN102936312A discloses a kind of for aqueous gold
Belong to the synthetic emulsion and preparation method thereof of paint, for by tertiary ethylene carbonate, methyl methacrylate, butyl acrylate, acrylic acid,
Hydroxy-ethyl acrylate, reactive emulsifier, persulfate aqueous solution, multifunctional assistant NP-95, levelling agent 2020 and deionized water
It is formed through core shell emulsion polymerization.Patent application CN105254800A disclose a kind of aqueous metallic paint acrylic acid ester emulsion and
Preparation method, the lotion are made of the substance of following parts by weight, vinyl monomer or ethylene not comprising carboxyl or hydroxyl
Base aromatic compound: 33~45 parts, the vinyl monomer comprising hydroxyl: 1~7 part, carboxylic vinyl monomer is wrapped: 0.5~1
Part, function monomer: 1~3 part, organic silicon monomer: 1~3 part, initiator: 0.15~0.4 part, compound emulsifying agent: 1~4 part, in
And agent: it 0.1~0.5 part, pH buffer: 0.05~0.1 part, deionized water: 45~50 parts, is obtained through core shell emulsion polymerization.On
The aqueous metallic paint prepared with waterborne styrene-acrylic emulsion of common metal of the prior art and the sale of current market is stated, or with one
Fixed glossiness and hardness, or with certain anti-corrosion ability, but be difficult to combine the performance of priming paint and finishing coat, meanwhile,
It is also required to spend a large amount of man power and materials before twice spraying or brushing, therefore develops the existing good glossiness of one kind and hardness,
Have again the antiseptic properties such as excellent water resistance, resistance to salt water and salt fog resistance special-purpose aqueous acrylic emulsion be badly in need of want grind
Study carefully work.
Summary of the invention
Phosphoric acid ester function monomer is grafted to propylene for overcome the deficiencies in the prior art, using polymerization reaction by the present invention
In sour latex particle, the metallic paint and metal for being configured to it have good complexing, form fine and close protective film, together
Shi Caiyong gloss controlling technology, the metallic paint for preparing it had both had excellent water resistance, resistance to salt water and salt fog resistance etc.
Antiseptic property, and there is good glossiness and hardness simultaneously, it is a kind of bottom of performance requirement for combining priming paint and finishing coat
Unify metallic paint waterborne styrene-acrylic emulsion in face.
Another object of the present invention is to provide a kind of preparation method of above-mentioned emulsion.
The purpose of the present invention is achieved through the following technical solutions.
A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion, raw material includes the component of following parts by weight:
Further, the phosphoric acid ester function monomer include but is not limited to be polyfunctionality acid acrylate's phosphoric acid
Ester, alkyl acrylate phosphate, glycolmethacrylate phosphate, 2-hydroxyethyl methacrylate phosphate, alkane
Base phosphate, imidazolines phosphate, siloxanes phosphate, clindamycin phosphate, hydroxypropyl PASELLI EASYGEL, acetylation
The mixture of one or more of the phosphoric acid esters function monomer such as PASELLI EASYGEL.
Further, the emulsifier include but is not limited to be allyloxy fatty alcohol ethylene oxide ether sulfate, 12
One or more of alkylbenzene sulfonate, allyloxy fatty alcohol ethylene oxide ether sulfate, nonyl phenol ethoxylate
Mixture.
Further, the dodecyl benzene sulfonate include but is not limited to be neopelex or 12
Alkyl benzene sulphonate potassium.
Further, the allyloxy fatty alcohol ethylene oxide ether sulfate include but is not limited to be allyloxy rouge
Fat alcohol ethylene oxide ether ammonium sulfate or allyloxy fatty alcohol ethylene oxide ether sodium sulfate.
Further, the persulfate includes but is not limited to be in potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate
One or more kinds of mixtures.
Further, the oxidant include but is not limited to be hydrogen peroxide.
Further, the reducing agent include but is not limited to be vitamin C.
The preparation method of unification metallic paint waterborne styrene-acrylic emulsion in bottom surface of the present invention, includes the following steps:
(1) synthesis phase
A. the water of 30% material quantity and the emulsifier of 50% material quantity is added into pre-emulsification cylinder in the preparation of pre-emulsion,
Blender is opened, styrene, butyl methacrylate, butyl acrylate, Isooctyl acrylate monomer, third are successively put into according to material quantity
Olefin(e) acid and phosphoric acid ester function monomer are dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity and the emulsifier of 50% material quantity, uniform stirring, heating are added into reactor
To 86 DEG C；
C. persulfate solution is added dropwise according to material quantity continuous uniform, continuous uniform a dropping step a preparation is pre- after five minutes
Emulsion is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the aqueous solution of the reducing agent of 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion, is added dropwise
20 minutes, keep the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the aqueous solution of the reducing agent of remaining 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion,
It is added dropwise 20 minutes, keeps the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
The solid content for the lotion that above-mentioned preparation method obtains is 30-50%, and pH value 7-9, partial size is 50-150 nanometers.
Unification metallic paint in bottom surface of the present invention is a kind of metal paint for priming paint and top lacquer lotion with waterborne styrene-acrylic emulsion, is used
When be added the pigments and fillers such as a certain amount of titanium dioxide, mica powder, barium sulfate, trbasic zinc phosphate be configured to bottom surface unification metallic paint, directly
It sprays or brushes on the metal surface together, form fine and close and flat and smooth paint film, the property of metal primer and finishing coat can be had both
Energy.
The utility model has the advantages that
(1) lotion of the present invention compared with prior art, has glossiness high, and hardness is good, and antiseptic property is excellent, uses
The advantages that facilitating.Phosphoric acid ester function monomer is grafted in acrylic based emulsion particle using polymerization reaction, is configured to it
Metallic paint and metal have good complexing, form fine and close protective film, while using gloss controlling technology, match it
The metallic paint of system had not only had the antiseptic properties such as excellent water resistance, resistance to salt water and salt fog resistance, but also had simultaneously well
Glossiness and hardness；
(2) lotion in the present invention be the environmental protection that water soluble acrylic acid is maintained based on developing under the premise of water soluble acrylic acid,
The features such as easy to use and use is extensive；
(3) lotion of the present invention is configured to directly spray or brush on the metal surface together after coating, is formed fine and close and put down
Whole smooth paint film without considering first spraying or brushing primer, then sprays or brush finish, only needs to spray together, save
Cost, improves work efficiency, and is a kind of aqueous phenylpropyl alcohol cream of metallic paint of the performance requirement for combining priming paint and finishing coat
Liquid.
Specific embodiment
The present invention is described below by specific embodiment.Unless stated otherwise, technological means used in the present invention
It is method known in those skilled in the art.In addition, embodiment is interpreted as illustrative, it is not intended to limit the present invention
Range, the spirit and scope of the invention are limited only by the claims that follow.To those skilled in the art, without departing substantially from this
Under the premise of invention spirit and scope, to the various changes or change of material component and dosage progress in these embodiments
It belongs to the scope of protection of the present invention.
The percentage sign " % " being related in embodiment refers to mass percent if not specified, and the percentage of solution refers to
Containing the grams of solute in 100mL, percentage between liquid refers to the volume ratio of the solution at 25 DEG C.
Embodiment 1:
A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion, raw material includes the component of following parts by weight:
8 parts of styrene, 21 parts of butyl methacrylate, 2 parts of butyl acrylate, 1 part of Isooctyl acrylate monomer, 1 part of acrylic acid,
1 part of glycolmethacrylate phosphate, 2 parts of 2-hydroxyethyl methacrylate phosphate, Potassium dodecylbenzenesulfonate 1
Part, 1 part of allyloxy fatty alcohol ethylene oxide ether sodium sulfate, 0.3 part of ammonium persulfate .1 parts of hydrogen peroxidase 10,0.1 part of vitamin C
With 53 parts of water.
The preparation method of the bottom surface unification metallic paint waterborne styrene-acrylic emulsion, includes the following steps:
(1) synthesis phase
A. the water of 30% material quantity and emulsifier (the detergent alkylate sulphur of 50% material quantity is added in the preparation of pre-emulsion
Sour potassium and allyloxy fatty alcohol ethylene oxide ether sodium sulfate composition) into pre-emulsification cylinder, blender is opened, successively according to material quantity
Put into styrene, butyl methacrylate, butyl acrylate, Isooctyl acrylate monomer, acrylic acid and phosphoric acid ester function monomer (second
Glycol methacrylate phosphate and 2-hydroxyethyl methacrylate phosphate), it is dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity and the emulsifier (dodecyl benzene sulfonic acid of 50% material quantity are added into reactor
Potassium and allyloxy fatty alcohol ethylene oxide ether sodium sulfate composition), uniform stirring is warming up to 86 DEG C；
C. ammonium persulfate solution is added dropwise according to material quantity continuous uniform, continuous uniform a dropping step a preparation is pre- after five minutes
Emulsion is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the reducing agent (vitamin C) of 50% material quantity and the oxidant (mistake of 50% material quantity is added dropwise simultaneously into lotion
Hydrogen oxide) aqueous solution, be added dropwise 20 minutes, keep the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the oxidant of reducing agent (vitamin C) and 50% material quantity of remaining 50% material quantity is added dropwise simultaneously into lotion
The aqueous solution of (hydrogen peroxide) is added dropwise 20 minutes, keeps the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
Embodiment 2:
A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion, raw material includes the component of following parts by weight:
13 parts of styrene, 26 parts of butyl methacrylate, 7 parts of butyl acrylate, 3 parts of Isooctyl acrylate monomer, acrylic acid 5
Part, 1 part of 2-hydroxyethyl methacrylate phosphate, 1 part of neopelex, 2 parts of nonyl phenol ethoxylate, mistake
0.6 part of potassium sulfate .2 parts of hydrogen peroxidase 10,0.2 part of vitamin C and 53 parts of water.
The preparation method of the bottom surface unification metallic paint waterborne styrene-acrylic emulsion, includes the following steps:
(1) synthesis phase
A. the water of 30% material quantity and emulsifier (the detergent alkylate sulphur of 50% material quantity is added in the preparation of pre-emulsion
Sour sodium and nonyl phenol ethoxylate composition) into pre-emulsification cylinder, blender is opened, benzene second is successively put into according to material quantity
Alkene, butyl methacrylate, butyl acrylate, Isooctyl acrylate monomer, acrylic acid and phosphoric acid ester function monomer (2- ethoxy first
Base acrylate phosphate), it is dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity and the emulsifier (dodecyl benzene sulfonic acid of 50% material quantity are added into reactor
Sodium and nonyl phenol ethoxylate composition), uniform stirring is warming up to 86 DEG C；
C. potassium persulfate solution is added dropwise according to material quantity continuous uniform, continuous uniform a dropping step a preparation is pre- after five minutes
Emulsion is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the reducing agent (vitamin C) of 50% material quantity and the oxidant (mistake of 50% material quantity is added dropwise simultaneously into lotion
Hydrogen oxide) aqueous solution, be added dropwise 20 minutes, keep the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the oxidant of reducing agent (vitamin C) and 50% material quantity of remaining 50% material quantity is added dropwise simultaneously into lotion
The aqueous solution of (hydrogen peroxide) is added dropwise 20 minutes, keeps the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
Embodiment 3:
A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion, raw material includes the component of following parts by weight:
10 parts of styrene, 23 parts of butyl methacrylate, 5 parts of butyl acrylate, 2 parts of Isooctyl acrylate monomer, acrylic acid 3
Part, 2 parts of alkyl acrylate phosphate, 2 parts of siloxanes phosphate, 1 part of hydroxypropyl PASELLI EASYGEL, dodecyl benzene sulfonic acid
1 part of sodium, 0.5 part of sodium peroxydisulfate .3 parts of hydrogen peroxidase 10,0.3 part of vitamin C and 53 parts of water.
The preparation method of the bottom surface unification metallic paint waterborne styrene-acrylic emulsion, includes the following steps:
(1) synthesis phase
A. the water of 30% material quantity and emulsifier (the detergent alkylate sulphur of 50% material quantity is added in the preparation of pre-emulsion
Sour sodium) into pre-emulsification cylinder, blender is opened, styrene, butyl methacrylate, acrylic acid fourth are successively put into according to material quantity
Ester, Isooctyl acrylate monomer, acrylic acid and phosphoric acid ester function monomer (alkyl acrylate phosphate, siloxanes phosphate and hydroxyl
Propyl PASELLI EASYGEL composition), it is dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity and the emulsifier (dodecyl benzene sulfonic acid of 50% material quantity are added into reactor
Sodium), uniform stirring is warming up to 86 DEG C；
C. sodium peroxydisulfate solution is added dropwise according to material quantity continuous uniform, continuous uniform a dropping step a preparation is pre- after five minutes
Emulsion is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the reducing agent (vitamin C) of 50% material quantity and the oxidant (mistake of 50% material quantity is added dropwise simultaneously into lotion
Hydrogen oxide) aqueous solution, be added dropwise 20 minutes, keep the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the oxidant of reducing agent (vitamin C) and 50% material quantity of remaining 50% material quantity is added dropwise simultaneously into lotion
The aqueous solution of (hydrogen peroxide) is added dropwise 20 minutes, keeps the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
The solid content for the lotion that above embodiment is prepared through the invention is 30-50%, pH value 7-9, partial size
It is 50-150 nanometers.
It is detected according to water-based acrylic resin coating standard HG/T 4758-2014, the above embodiment of the present invention is prepared
Lotion compared with prior art, have glossiness high, hardness is good, and antiseptic property is excellent, it is easy to use the advantages that, specific performance
Testing index is as shown in the table:
| Detection project | Content | Standard |
| Gloss of film (60 degree of surveys) | ≧80 | Photometer |
| Cross cut test | 0 grade | GB/T9286-1998 |
| Pencil hardness | HB | GB/T6739-2006 |
| Impact resistance | 50cm | GB/T1732-1993 |
| Water resistance | 312h is without exception | GB/T1733-1993 |
| Resistance to salt water | 312h plays vesicle | GB/T9274-1988 |
| Salt fog resistance | The blistering of 216h scratch | GB/T1771-2007 |
Claims (9)
1. metallic paint waterborne styrene-acrylic emulsion is unified in a kind of bottom surface, which is characterized in that its raw material includes the group of following parts by weight
Point:
The preparation of the lotion includes the following steps:
(1) synthesis phase
A. the preparation of pre-emulsion is added the water of 30% material quantity and the emulsifier of 50% material quantity into pre-emulsification cylinder, opens
Blender successively puts into styrene, butyl methacrylate, butyl acrylate, Isooctyl acrylate monomer, acrylic acid according to material quantity
And phosphoric acid ester function monomer, it is dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity is added into reactor and the emulsifier of 50% material quantity, uniform stirring are warming up to 86
℃；
C. persulfate solution is added dropwise according to material quantity continuous uniform, after five minutes the pre-emulsification of continuous uniform a dropping step a preparation
Liquid is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the aqueous solution of the reducing agent of 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion, is added dropwise 20 points
Clock keeps the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the aqueous solution of the reducing agent of remaining 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion, is added dropwise
20 minutes, keep the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
2. metallic paint waterborne styrene-acrylic emulsion is unified in bottom surface according to claim 1, which is characterized in that the phosphate
Class function monomer is polyfunctionality acid acrylate phosphate, alkyl acrylate phosphate, glycolmethacrylate
The mixture of one or more of phosphate, 2-hydroxyethyl methacrylate phosphate.
3. metallic paint waterborne styrene-acrylic emulsion is unified in bottom surface according to claim 1, which is characterized in that the emulsifier
For one of allyloxy fatty alcohol ethylene oxide ether sulfate, dodecyl benzene sulfonate, nonyl phenol ethoxylate or two
Kind or more mixture.
4. unifying metallic paint waterborne styrene-acrylic emulsion according to the bottom surface that claim 3 is stated, which is characterized in that the dodecyl
Benzene sulfonate is neopelex or Potassium dodecylbenzenesulfonate.
5. unifying metallic paint waterborne styrene-acrylic emulsion according to the bottom surface that claim 3 is stated, which is characterized in that the allyloxy
Fatty alcohol ethylene oxide ether sulfate is allyloxy fatty alcohol ethylene oxide ether ammonium sulfate or allyloxy fatty alcohol ethylene oxide ether sulphur
Sour sodium.
6. metallic paint waterborne styrene-acrylic emulsion is unified in bottom surface according to claim 1, which is characterized in that the persulfuric acid
Salt is the mixture of one or more of potassium peroxydisulfate, ammonium persulfate or sodium peroxydisulfate.
7. metallic paint waterborne styrene-acrylic emulsion is unified in bottom surface according to claim 1, which is characterized in that the oxidant
For hydrogen peroxide.
8. metallic paint waterborne styrene-acrylic emulsion is unified in bottom surface according to claim 1, which is characterized in that the reducing agent
For vitamin C.
9. the preparation method of any bottom surface unification metallic paint waterborne styrene-acrylic emulsion of claim 1-8, which is characterized in that
The preparation method includes the following steps:
(1) synthesis phase
A. the preparation of pre-emulsion is added the water of 30% material quantity and the emulsifier of 50% material quantity into pre-emulsification cylinder, opens
Blender successively puts into styrene, butyl methacrylate, butyl acrylate, Isooctyl acrylate monomer, acrylic acid according to material quantity
And phosphoric acid ester function monomer, it is dispersed with stirring 30 minutes；
B. the remaining water of 70% material quantity is added into reactor and the emulsifier of 50% material quantity, uniform stirring are warming up to 86
℃；
C. persulfate solution is added dropwise according to material quantity continuous uniform, after five minutes the pre-emulsification of continuous uniform a dropping step a preparation
Liquid is added dropwise 4 hours, and 89 DEG C are warming up to after being added dropwise, and keeps the temperature 1 hour；
(2) post-processing stages
A. 70~75 DEG C are cooled to；
B. the aqueous solution of the reducing agent of 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion, is added dropwise 20 points
Clock keeps the temperature 40 minutes；
C. continue to be cooled to 60~65 DEG C；
D. the aqueous solution of the reducing agent of remaining 50% material quantity and the oxidant of 50% material quantity is added dropwise simultaneously into lotion, is added dropwise
20 minutes, keep the temperature 40 minutes；
E. heater is closed, room temperature is cooled to lotion, filters and packages.
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| CN201610916936.8A CN106565893B (en) | 2016-10-21 | 2016-10-21 | A kind of bottom surface unification metallic paint waterborne styrene-acrylic emulsion and preparation method thereof |
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| CN109796553A (en) * | 2018-12-25 | 2019-05-24 | 常熟巴德富科技有限公司 | Solvent-free lotion of the low environment-friendly type aqueous acrylate of smell and preparation method thereof |
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