CN106832080A - A kind of woodcare paint styrene-acrylate core/shell emulsion and preparation method thereof - Google Patents
A kind of woodcare paint styrene-acrylate core/shell emulsion and preparation method thereof Download PDFInfo
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- CN106832080A CN106832080A CN201710077575.7A CN201710077575A CN106832080A CN 106832080 A CN106832080 A CN 106832080A CN 201710077575 A CN201710077575 A CN 201710077575A CN 106832080 A CN106832080 A CN 106832080A
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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
- C08F212/00—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 an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
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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
- C08F4/00—Polymerisation catalysts
- C08F4/40—Redox systems
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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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
Abstract
The invention discloses a kind of woodcare paint styrene-acrylate core/shell emulsion and preparation method thereof, its drip irrigation device is：Material composition including following components by weight percent：Water 50~58%, styrene 16~26%, methyl methacrylate 6~13%, butyl acrylate 6~10%, acrylic acid 0.2~0.4%, methacrylic acid 0.2~0.4%, cross-linking monomer 1.5~3%, DAAM2~4%, anion emulsifier 0.3~0.6%, nonionic emulsifier 0.6~1.0%, buffer 0.085~0.1%, the chelating auxiliary agent 0.005~0.01% of initiator 0.06~0.1%, the reducing agent 0.05~0.08% of oxidant 0.07~0.1%, 10%ADH1~3%, ammoniacal liquor 0.1~0.4%, defoamer 0.05~0.2%.The present invention is by first synthesizing rigid seed emulsion, the soft monomer of cladding, styrene-acrylic emulsion of the synthesis with core shell structure, by oxidative deamination process to control particle size and particle diameter distribution, on the premise of the cost of raw material is not improved, there is provided a kind of hardness is high, fast drying, richness is high, transparent good, and film-forming temperature is low, the woodcare paint styrene-acrylate core/shell emulsion of anti-scratch.
Description
【Technical field】
The present invention relates to a kind of woodcare paint styrene-acrylate core/shell emulsion and preparation method thereof, belong to technical field of coatings.
【Background technology】
With the improvement of people ' s living standards, the enhancing of safety and Health consciousness, in the house ornamentation wood that people live closely bound up
Device field, water paint progressively replaces big, serious to the health hazard solvent based coating of environmental pollution.
Water-borne wood coating since China emerges first, due to cheap, has produced simple, tool from the nineties in 20th century
There is good applicability and very popular.And the body material of aqueous woodware paint coating is most common is divided into three major types, one is water
Property Polyurethane emulsion, at present because price partially it is expensive be only fraction market receive；Two is Polyurethane acrylic emulsion, due to performance
There is no a lifting of matter and expensive, the degree being acceptable to the market is not also high, and three is the most common are common (non-nucleocapsid) propylene
Acid esters emulsion.Because the aqueous woodware paint of such production has solids content high, rate of drying still, low cost and weathering
Property it is good the features such as, and film color it is shallow, protect light unfading it is good.So obtaining certain market accreditation.But exist film forming compared with
Difference, MFT is high, not solvent resistant, and the shortcomings of hot sticky cold crisp, its decorative effect is often bad, typically more difficult as high
The ornamental face of shelves.In aqueous acrylic emulsion system, in general, in order to the paint film for obtaining high rigidity generally requires to gather film forming
The glass transition temperature Tg of compound is improved, and the emulsion film forming temperature of the polymer of Tg high is also very high, is difficult in room temperature
Under obtain high-quality paint film.
Aqueous styrene-acrylate core/shell emulsion has the emulsion polymer of stone soft shell construction from particle design viewpoint, synthesis,
According to core, the different Tg of shell, make paint film film forming at relatively low temperature, hardness higher is endowed again；On the other hand, adopt
Ambient self-crosslinking technology is used, polyfunctional monomer is introduced in the polymer, make to be obtained with cross-linked structure during emulsion film forming
Film, so that the hardness and film forming of paint film are further improved, while also improving water-fast, the heat resistance of film.
【The content of the invention】
The purpose of the present invention is the defect for overcoming prior art, by first synthesizing the seed emulsion of hardness, on seed basis
On, soft monomer is coated, synthesize the styrene-acrylic emulsion with core shell structure, while passing through oxidative deamination process to control particle diameter
Size and particle diameter distribution, on the premise of the cost of raw material is not improved, there is provided a kind of hardness is high, fast drying, richness is high, saturating
Bright good, film-forming temperature is low, the woodcare paint styrene-acrylate core/shell emulsion of anti-scratch.
It is a further object of the present invention to provide a kind of woodcare paint styrene-acrylate core/shell emulsion preparation method.
A kind of woodcare paint styrene-acrylate core/shell emulsion, including following components by weight percent material composition：
Preferably, described anion emulsifier is neopelex, lauryl sodium sulfate, α-pi-allyl alkane
One or more mixtures in base phenol polyethenoxy ether (10) ammonium sulfate.
Preferably, cross-linking monomer is hydroxypropyl acrylate, hydroxy-ethyl acrylate, one kind of N hydroxymethyl acrylamide or appoints
Meaning combination.
Preferably, the nonionic emulsifier is 0P-10 emulsifying agents or OP-40 emulsifying agents.
Preferably, the initiator is potassium peroxydisulfate or ammonium persulfate.
Preferably, the chelating auxiliary agent is one or two mixtures in ethylenediamine tetra-acetic acid, FeSO4.7H2O, and water is
Deionized water.
Preferably, the oxidant is TBHP, and the reducing agent is VC or arabo-ascorbic acid.
Preferably, the buffer be sodium acid carbonate, the defoamer be mineral oils or organosilicon compound, it is described
Ammoniacal liquor be 28% concentration technical grade ammoniacal liquor.
A kind of preparation method of woodcare paint styrene-acrylate core/shell emulsion, comprises the following steps：
1), by 16~28% styrene, 0~7% methyl methacrylate, 0.2~0.4% acrylic acid and anion breast
The 25%~35% of agent total amount mixes with water, stirs 0.5~1 hour, and mixing speed is 200~300 revs/min, is obtained pre-
Emulsion A1；
2), by 5~8% methyl methacrylates, 6~10% butyl acrylates, 0.2~0.4% methacrylic acid, 2~
4%DAAM, 1.5~3% cross-linking monomers and and anion emulsifier total amount 25%~35% mix with water, stirring 0.5~1
Hour, mixing speed is 200~300 revs/min, and pre-emulsion A2 is obtained；
3), part pre-emulsion A1 (accounting for the 5~10% of pre-emulsion A1 total amounts), anion emulsifier total amount 25%~
35%, whole initiators, whole buffers are added in deionized water, obtained solution B；
4), chelating auxiliary agent is dissolved into deionized water, obtained solution C；
5), oxidant is dissolved into deionized water, obtained solution D；
6), by whole nonionic emulsifiers, reducing agent is dissolved into deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 140~180 revs/min, is warming up to 83~85 DEG C instead
Answer 0.5~1 hour, obtain the general milky white liquid for having a blue light, by temperature control at 75~82 DEG C, start that pre-emulsion is added dropwise
A1, drips off in 1~1.5 hour.Kept for 80~85 DEG C continue to react 1~1.5 hour, be cooled to 35~40 DEG C, add C, be added dropwise
D, E and A2, and control pre-emulsion A2 first to drip off, are then incubated 30~60 minutes at 63~66 DEG C, be then cooled to 50 DEG C with
Under, ammoniacal liquor is added, defoamer is finally added, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
Preferably, the viscosity of gained woodcare paint styrene-acrylate core/shell emulsion is 14 ± 2 seconds/25 DEG C.
The present invention has the advantage that relative to prior art：
1st, a kind of woodcare paint styrene-acrylate core/shell emulsion of the invention, hard monomer is core, and soft monomer is shell, both improves glass
Change temperature so that hardness of paint film is improved, and MFT is reduced again, break ordinary emulsion film-forming temperature and vitrifying temperature
Spend positively related limitation；
2nd, a kind of woodcare paint styrene-acrylate core/shell emulsion of the invention, the filming performance of styrene-acrylate core/shell emulsion is very excellent,
The coalescents of addition needed for natural film forming, rear stage paint are less than market like product at a temperature of 25 DEG C, this be this product most
Big advantage, it is body material to use styrene, methyl methacrylate, butyl acrylate, methacrylic acid and acrylic acid, divides three
Section polymeric emulsification, by controlling the temperature of reaction, time of insulation realizes the Raolical polymerizable between compound, generates
The larger styrene-acrylate core/shell emulsion of molecular weight；
3rd, a kind of woodcare paint styrene-acrylate core/shell emulsion preparation method of the invention, synthesis technique is simple, convenient, easily behaviour
Control, the repeatability that tool will be higher, synthesis is carried out in water, and environmental protection, safety, smell is few, and grain is controlled using optimize technique
Footpath size, particle diameter distribution reaches from the angle of particle design and carrys out deisgn product, overcomes the heat that conventional propylene acids product often has
Glue cold short grade much lack, gained styrene-acrylate core/shell emulsion dilution stability, bin stability, good mechanical stability low costs and
It is adapted to industrialized production；
4th, a kind of preparation method of woodcare paint styrene-acrylate core/shell emulsion of the invention, synthetic route is more brief, operation tool
Repeatability that will be higher, the raw material of production are simple and easy to get, cheap, reduce cost, in production process synthesis plus
Hot temperature is no more than 118 DEG C, and safe operation saves the energy, after overcoming pure oiliness or water-base resin system film-forming, light
Damp degree is low, difference of hardness, the shortcomings of poor water resistance, while improve producing line production efficiency, product monomer as bulk reaction point
Dispersion liquid, in solution building-up process, as reaction is carried out, the problem that system viscosity constantly increases.
【Specific embodiment】
With reference to specific embodiment, the invention will be further described：
Table 1, each component weight of embodiment 1~6 composition:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Water | 57.38% | 52.67% | 52.33% | 51.91% | 50.70% | 58.00% |
| Styrene | 16.00% | 22.00% | 25.00% | 26.00% | 18.00% | 16.00% |
| Methyl methacrylate | 13.00% | 11.00% | 8.00% | 6.00% | 8.00% | 8.00% |
| Butyl acrylate | 7.00% | 7.00% | 6.00% | 6.00% | 10.00% | 8.00% |
| Acrylic acid | 0.20% | 0.22% | 0.25% | 0.30% | 0.40% | 0.30% |
| Methacrylic acid | 0.20% | 0.22% | 0.25% | 0.30% | 0.40% | 0.40% |
| Cross-linking monomer | 1.50% | 1.80% | 2.00% | 2.50% | 3.00% | 2.50% |
| DAAM | 2.00% | 2.20% | 3.00% | 3.00% | 4.00% | 3.00% |
| Anion emulsifier | 0.30% | 0.30% | 0.30% | 0.45% | 0.60% | 0.50% |
| Nonionic emulsifier | 0.70% | 0.75% | 0.80% | 0.90% | 1.00% | 0.60% |
| Buffer | 0.075% | 0.088% | 0.090% | 0.085% | 0.100% | 0.080% |
| Initiator | 0.07% | 0.07% | 0.07% | 0.08% | 0.10% | 0.08% |
| Chelating auxiliary agent | 0.005% | 0.006% | 0.007% | 0.008% | 0.010% | 0.005% |
| Oxidant | 0.08% | 0.08% | 0.08% | 0.09% | 0.10% | 0.07% |
| Reducing agent | 0.06% | 0.05% | 0.06% | 0.08% | 0.08% | 0.07% |
| 10%ADH | 1.00% | 1.20% | 1.50% | 2.00% | 3.00% | 2.00% |
| Ammoniacal liquor | 0.40% | 0.30% | 0.20% | 0.20% | 0.40% | 0.30% |
| Defoamer | 0.03% | 0.05% | 0.06% | 0.10% | 0.20% | 0.10% |
The preparation method of embodiment 1：
1), by 16% styrene, 7% methyl methacrylate, 0.20% acrylic acid and 0.1% lauryl sodium sulfate
With the mixing of 18% deionized water, stir 0.5 hour, mixing speed is 200 revs/min, and pre-emulsion A1 is obtained；
2), by 6% methyl methacrylate, 7% butyl acrylate, 0.20% methacrylic acid, 2.0%DAAM, 1.5%
Hydroxy-ethyl acrylate, 0.1% lauryl sodium sulfate and 16% deionized water, mix 0.5 hour, and mixing speed is 200
Rev/min, pre-emulsion A2 is obtained；
3), by part pre-emulsion A1 (accounting for the 10% of pre-emulsion A1 total amounts), 0.1% lauryl sodium sulfate,
In 0.07% ammonium persulfate, 0.075% buffer, 15% deionized water, obtained solution B；
4), 0.005% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.08% oxidant is dissolved into 4% deionized water, obtained solution D；
6), by 0.70% nonionic emulsifier, 0.06% reducing agent is dissolved into 2.38% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 140 revs/min, is warming up to 83 DEG C and is reacted 0.5 hour
The general milky white liquid for having a blue light is obtained, by temperature control at 75 DEG C, starts that pre-emulsion A1 is added dropwise, dripped off in 1 hour, kept
80 DEG C are continued to react 1.5 hours, are cooled to 35 DEG C, add C, and D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, then
60 minutes are incubated at 63 DEG C, less than 50 DEG C are then cooled to, add 1.0% 10%ADH, 0.4% ammoniacal liquor finally to add
0.03% defoamer, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
The preparation method of embodiment 2：
1), by 22% styrene, 5% methyl methacrylate, 0.22% acrylic acid and 0.1% lauryl sodium sulfate
With the mixing of 17% deionized water, stir 0.6 hour, mixing speed is 250 revs/min, and pre-emulsion A1 is obtained；
2), by 6% methyl methacrylate, 7% butyl acrylate, 0.22% methacrylic acid, 2.2%DAAM, 1.8%
Hydroxy-ethyl acrylate, 0.1% lauryl sodium sulfate and 15% deionized water, mix 0.6 hour, and mixing speed is 250
Rev/min, pre-emulsion A2 is obtained；
3), by part pre-emulsion A1 (accounting for the 5% of pre-emulsion A1 total amounts), 0.1% lauryl sodium sulfate, 0.07%
In ammonium persulfate, 0.088% buffer, 14% deionized water, obtained solution B；
4), 0.006% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.08% oxidant is dissolved into 3% deionized water, obtained solution D；
6), by 0.75% nonionic emulsifier, 0.05% reducing agent is dissolved into 1.67% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 160 revs/min, is warming up to 84 DEG C and is reacted 0.6 hour
The general milky white liquid for having a blue light is obtained, by temperature control at 78 DEG C, starts that pre-emulsion A1 is added dropwise, dripped off in 1 hour, kept
82 DEG C are continued to react 1.2 hours, are cooled to 36 DEG C, add C, and D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, then
50 minutes are incubated at 64 DEG C, less than 50 DEG C are then cooled to, add 1.2% 10%ADH, 0.3% ammoniacal liquor finally to add
0.05% defoamer, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
The preparation method of embodiment 3：
1), by 25% styrene, 2% methyl methacrylate, 0.25% acrylic acid and 0.1% lauryl sodium sulfate
With the mixing of 17% deionized water, stir 0.7 hour, mixing speed is 280 revs/min, and pre-emulsion A1 is obtained；
2), by 6% methyl methacrylate, 6% butyl acrylate, 0.25% methacrylic acid, 3%DAAM, 2% propylene
Sour hydroxyl ethyl ester, 0.1% lauryl sodium sulfate and 15% deionized water, mix 0.7 hour, and mixing speed is 280 revs/min
Clock, is obtained pre-emulsion A2；
3), by part pre-emulsion A1 (accounting for the 6% of pre-emulsion A1 total amounts), 0.1% lauryl sodium sulfate, 0.07%
In ammonium persulfate, 0.09% buffer, 14% deionized water, obtained solution B；
4), 0.007% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.08% oxidant is dissolved into 3% deionized water, obtained solution D；
6), by 0.8% nonionic emulsifier, 0.06% reducing agent is dissolved into 1.33% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 170 revs/min, is warming up to 84 DEG C and is reacted 0.7 hour
The general milky white liquid for having a blue light is obtained, by temperature control at 80 DEG C, starts that pre-emulsion A1 is added dropwise, dripped off in 1.3 hours, protected
Hold 84 DEG C to continue to react 1.3 hours, be cooled to 38 DEG C, add C, D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, so
50 minutes are incubated at 64 DEG C afterwards, less than 50 DEG C are then cooled to, add 1.5% 10%ADH, 0.2% ammoniacal liquor finally to add
0.06% defoamer, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
The preparation method of embodiment 4：
1), by 26% styrene, 1% methyl methacrylate, 0.3% acrylic acid and 0.15% lauryl sodium sulfate
With the mixing of 16% deionized water, stir 0.8 hour, mixing speed is 290 revs/min, and pre-emulsion A1 is obtained；
2), by 5% methyl methacrylate, 6% butyl acrylate, 0.3% methacrylic acid, 3%DAAM, 2.5% the third
Olefin(e) acid hydroxyl ethyl ester, 0.15% lauryl sodium sulfate and 15% deionized water, mix 0.8 hour, and mixing speed is 290
Rev/min, pre-emulsion A2 is obtained；
3), by part pre-emulsion A1 (accounting for the 8% of pre-emulsion A1 total amounts), 0.15% lauryl sodium sulfate,
In 0.08% ammonium persulfate, 0.085% buffer, 14% deionized water, obtained solution B；
4), 0.008% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.09% oxidant is dissolved into 3% deionized water, obtained solution D；
6), by 0.9% nonionic emulsifier, 0.08% reducing agent is dissolved into 1.91% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 170 revs/min, is warming up to 84 DEG C and is reacted 0.8 hour
The general milky white liquid for having a blue light is obtained, by temperature control at 81 DEG C, starts that pre-emulsion A1 is added dropwise, dripped off in 1.4 hours, protected
Hold 84 DEG C to continue to react 1.4 hours, be cooled to 39 DEG C, add C, D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, so
50 minutes are incubated at 65 DEG C afterwards, less than 50 DEG C are then cooled to, add 2% 10%ADH, 0.2% ammoniacal liquor finally to add
0.1% defoamer, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
The preparation method of embodiment 5：
1), 18% styrene, 0.4% acrylic acid and 0.2% lauryl sodium sulfate and 16% deionized water are mixed,
Stirring 1 hour, mixing speed is 300 revs/min, and pre-emulsion A1 is obtained；
2), by 8% methyl methacrylate, 10% butyl acrylate, 0.4% methacrylic acid, 4%DAAM, 3% propylene
Sour hydroxyl ethyl ester, 0.2% lauryl sodium sulfate and 14% deionized water, mix 1 hour, and mixing speed is 300 revs/min
Clock, is obtained pre-emulsion A2；
3), by part pre-emulsion A1 (accounting for the 8% of pre-emulsion A1 total amounts), 0.2% lauryl sodium sulfate, 0.1%
In ammonium persulfate, 0.1% buffer, 14% deionized water, obtained solution B；
4), 0.01% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.1% oxidant is dissolved into 3% deionized water, obtained solution D；
6), by 1.0% nonionic emulsifier, 0.08% reducing agent is dissolved into 1.7% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 180 revs/min, is warming up to 85 DEG C of reactions and is obtained for 1 hour
To the general milky white liquid for having a blue light, by temperature control at 82 DEG C, start that pre-emulsion A1 is added dropwise, dripped off in 1.5 hours, keep
85 DEG C are continued to react 1.5 hours, are cooled to 40 DEG C, add C, and D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, then
60 minutes are incubated at 65 DEG C, less than 50 DEG C are then cooled to, add 3% 10%ADH, 0.4% ammoniacal liquor finally to add 0.2%
Defoamer, stirring obtain woodcare paint styrene-acrylate core/shell emulsion.
The preparation method of embodiment 6：
1), by 16% styrene, 2% methyl methacrylate, 0.3% acrylic acid and 0.18% lauryl sodium sulfate
With the mixing of 18% deionized water, stir 1 hour, mixing speed is 300 revs/min, and pre-emulsion A1 is obtained；
2), by 6% methyl methacrylate, 8% butyl acrylate, 0.4% methacrylic acid, 3%DAAM, 2.5% the third
Olefin(e) acid hydroxyl ethyl ester, 0.16% lauryl sodium sulfate and 16% deionized water, mix 1 hour, mixing speed be 300 turns/
Minute, pre-emulsion A2 is obtained；
3), by part pre-emulsion A1 (accounting for the 6% of pre-emulsion A1 total amounts), 0.16% lauryl sodium sulfate,
In 0.08% ammonium persulfate, 0.08% buffer, 15% deionized water, obtained solution B；
4), 0.005% chelating auxiliary agent is dissolved into 2% deionized water, obtained solution C；
5), 0.07% oxidant is dissolved into 4% deionized water, obtained solution D；
6), by 0.60% nonionic emulsifier, 0.07% reducing agent is dissolved into 3% deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 180 revs/min, is warming up to 85 DEG C of reactions and is obtained for 1 hour
To the general milky white liquid for having a blue light, by temperature control at 82 DEG C, start that pre-emulsion A1 is added dropwise, dripped off in 1.5 hours, keep
85 DEG C are continued to react 1.5 hours, are cooled to 40 DEG C, add C, and D, E and A2 is added dropwise, and control pre-emulsion A2 first to drip off, then
60 minutes are incubated at 65 DEG C, less than 50 DEG C are then cooled to, add 2% 10%ADH, 0.3% ammoniacal liquor finally to add 0.1%
Defoamer, stirring obtain woodcare paint styrene-acrylate core/shell emulsion.
Performance test such as table 2 after the film-forming of embodiment 1-6：
Table 2：
Method of testing：
1st, aqueous woodware paint manufacturing process：70 parts of woodcare paint styrene-acrylate core/shell emulsion is taken respectively, and it is 150ml's to add volume
In glass, 24 parts of distilled water is then added, 3 parts of coalescents, 1 part of anti-wear agent, 1 part of wetting agent adds 0.8
The aqueous levelling agent (organic silicon modified by polyether) of part, 0.2 part of aqueous defoamer stirs 15- with 350~550 revs/min of rotating speeds
30 minutes, until system is uniform, with the filter screen filtration of 250 mesh, filtrate is inverted in black glue tank, it is stand-by；
2nd, film-forming process：With manual spray gun, aqueous woodware paint is sprayed on the front of China fir respectively, numbering is 1,
2nd, 3,4,5,6, oven temperature is set to 45 DEG C, humidity 10% places 1,2,3,4,5,6 plates 2 hours respectively, is solidified into
Film.
Result more than obtained by test：
1) anti-woodcare paint styrene-acrylate core/shell of the invention, film-forming temperature is low, and hardness is high, fast drying, and richness is high, transparent
It is good.
2) woodcare paint styrene-acrylate core/shell of the invention, is aqueous dispersion, and human body and environment are had no adverse effects, and is met
The environmental protection standard requirement of country and industry.
Claims (10)
1. a kind of woodcare paint styrene-acrylate core/shell emulsion, it is characterised in that the material including following components by weight percent：
2. a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：Described is anionic emulsifying
Agent is in neopelex, lauryl sodium sulfate, α-allyl alkylphenol ethoxylate (10) ammonium sulfate
Plant or several mixtures.
3. woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：Cross-linking monomer is acrylic acid hydroxypropyl
Ester, hydroxy-ethyl acrylate, one kind or any combination of N hydroxymethyl acrylamide.
4. a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：The nonionic emulsifier
It is 0P-10 emulsifying agents or OP-40 emulsifying agents.
5. woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：The initiator is potassium peroxydisulfate
Or ammonium persulfate.
6. a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：The chelating auxiliary agent is second
One or two mixtures in ethylenediamine tetraacetic acid (EDTA), FeSO4.7H2O.
7. a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：The oxidant is tertiary fourth
Base hydrogen peroxide, the reducing agent is VC or arabo-ascorbic acid.
8. a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 1, it is characterised in that：The buffer is carbonic acid
Hydrogen sodium, the defoamer is mineral oils or organosilicon compound, and described ammoniacal liquor is the technical grade ammoniacal liquor of 28% concentration.
9. a kind of preparation method of woodcare paint styrene-acrylate core/shell emulsion, it is characterised in that comprise the following steps：
1), by 16~28% styrene, 0~7% methyl methacrylate, 0.2~0.4% acrylic acid and anion emulsifier
The 25%~35% of total amount mixes with water, stirs 0.5~1 hour, and mixing speed is 200~300 revs/min, and pre-emulsification is obtained
Liquid A1；
2), by 5~8% methyl methacrylates, 6~10% butyl acrylates, 0.2~0.4% methacrylic acid, 2~4%
DAAM, 1.5~3% cross-linking monomers and and anion emulsifier total amount 25%~35% mix with water, stirring 0.5~1 is small
When, mixing speed is 200~300 revs/min, and pre-emulsion A2 is obtained；
3), part pre-emulsion A1 (accounting for the 5~10% of pre-emulsion A1 total amounts), anion emulsifier total amount 25%~
35%, whole initiators, whole buffers are added in deionized water, obtained solution B；
4), chelating auxiliary agent is dissolved into deionized water, obtained solution C；
5), oxidant is dissolved into deionized water, obtained solution D；
6), by whole nonionic emulsifiers, reducing agent is dissolved into deionized water, obtained solution E；
7), by solution B addition reactor, mixing speed is controlled at 140~180 revs/min, is warming up to 83~85 DEG C of reactions
0.5~1 hour, the general milky white liquid for having a blue light is obtained, by temperature control at 75~82 DEG C, start to be added dropwise pre-emulsion A1,1
Dripped off in~1.5 hours.Kept for 80~85 DEG C continue to react 1~1.5 hour, be cooled to 35~40 DEG C, add C, be added dropwise D, E and
A2, and control pre-emulsion A2 first to drip off, is then incubated 30~60 minutes at 63~66 DEG C, is then cooled to less than 50 DEG C, plus
Enter ammoniacal liquor, finally add defoamer, stirring obtains woodcare paint styrene-acrylate core/shell emulsion.
10. the preparation method of a kind of woodcare paint styrene-acrylate core/shell emulsion according to claim 9, it is characterised in that：Gained
The viscosity of woodcare paint styrene-acrylate core/shell emulsion is 14 ± 2 seconds/25 DEG C.
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| CN111484833A (en) * | 2020-03-27 | 2020-08-04 | 中国石油天然气集团有限公司 | Low-friction film-forming plugging agent for high-temperature oil-based drilling fluid and preparation method and application thereof |
| CN112266437A (en) * | 2020-09-23 | 2021-01-26 | 泰州东方特种化工有限公司 | Silica sol modified acrylic emulsion for water-based wood paint and preparation method thereof |
| CN113736009A (en) * | 2021-09-08 | 2021-12-03 | 台州学院 | Preparation method of styrene-acrylic emulsion for water-based wood paint |
| CN113980168A (en) * | 2021-10-28 | 2022-01-28 | 四川达威科技股份有限公司 | Preparation method of gradient core-shell acrylic emulsion for outdoor wood paint |
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| CN112266437A (en) * | 2020-09-23 | 2021-01-26 | 泰州东方特种化工有限公司 | Silica sol modified acrylic emulsion for water-based wood paint and preparation method thereof |
| CN113736009A (en) * | 2021-09-08 | 2021-12-03 | 台州学院 | Preparation method of styrene-acrylic emulsion for water-based wood paint |
| CN113980168A (en) * | 2021-10-28 | 2022-01-28 | 四川达威科技股份有限公司 | Preparation method of gradient core-shell acrylic emulsion for outdoor wood paint |
| CN113980168B (en) * | 2021-10-28 | 2023-08-22 | 四川达威科技股份有限公司 | Preparation method of gradient core-shell acrylic emulsion for outdoor wood lacquer |
| CN115304716A (en) * | 2022-09-02 | 2022-11-08 | 中山市博尔新材料研发有限责任公司 | Acrylic core-shell emulsion for grinding water-based ink and preparation method thereof |
| CN115851063A (en) * | 2022-12-21 | 2023-03-28 | 佛山市贝特尔化工有限公司 | Modified polyacrylic acid emulsion for wood sealing primer and preparation and application thereof |
| CN115851063B (en) * | 2022-12-21 | 2023-12-19 | 湖南倍特尔新材料有限公司 | Modified polyacrylic emulsion for woodware seal primer and preparation and application thereof |
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Application publication date: 20170613 |