CN106632816A - Colored continuous-phase silicone-acrylic emulsion reactable with protective glue and preparation method thereof - Google Patents
Colored continuous-phase silicone-acrylic emulsion reactable with protective glue and preparation method thereof Download PDFInfo
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- CN106632816A CN106632816A CN201610916938.7A CN201610916938A CN106632816A CN 106632816 A CN106632816 A CN 106632816A CN 201610916938 A CN201610916938 A CN 201610916938A CN 106632816 A CN106632816 A CN 106632816A
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- acrylic emulsion
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- phase silicone
- protection glue
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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
- 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
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
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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
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
-
- 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
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
Abstract
The invention discloses colored continuous-phase silicone-acrylic emulsion reactable with protective glue, prepared from, by weight, 130-180 parts of water, 50-90 parts of methyl methacrylate, 60-90 parts of 2-ethylhexyl acrylate, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophilic unsaturated organic acid, 3-7 parts of a functional monomer, 0.3-2.5 parts of an anionic emulsifier, 0.2-2 parts of an initiator, 0.05-0.25 part of an oxidant, and 0.05-0.25 part of a reducing agent; the prepared colored continuous-phase silicone-acrylic emulsion reactable with protective glue has excellent transparency, weatherability and paint formulating stability, can engage in directional crosslinking reaction with protective glue, and has excellent water resistance and water white resistance as no thickeners are added to the colored continuous phase.
Description
Technical field：
The present invention relates to a kind of silicone acrylic emulsion, and in particular to be a kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction
And preparation method thereof.
Background technology：
With the continuous improvement of people's living standard, the species of building coating is also increasingly varied.Apply in these buildings
Water-in-water multicolor coating occupies extremely important status in material, and very big development is also obtained in recent years.Water-soluble colorful coating
Novelty and diversity are added for building coating, also range of choice has been opened up for people.Multicolor finish is divided into base paint and company
Continuous phase two parts, when continuous phase is prepared, traditional pure third or the continuous phase of silicon third need to add a certain amount of thickener to reach
Certain viscosity is not stratified.And, addition after in traditional multicolor finish thickener being prepared into being needed in coating makes
Obtain and water-fast white poor, the bad phenomenon of water-fast bubbling often occurs during application.Therefore, a kind of and protection how is developed
Glue orientation reaction reaches thickening effect and does not additionally add the acrylic emulsion of thickener, is a disaster of current building coating
Topic.
The content of the invention：
It is an object of the invention to overcome the shortcomings of existing market product, there is provided a kind of to meet stablizing for multicolor finish
Property, and with the resistance to water-white excellent properties of superelevation, and save the acrylic acid ester emulsion of coating process.
Another goal of the invention of the present invention is to provide a kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction
The preparation method of process is simple.
The object of the present invention is achieved like this：A kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction, by following
It is prepared by the raw material of mass fraction：Water 130-180 parts, methyl methacrylate 50-90 parts, Isooctyl acrylate monomer 60-90 parts, propylene
Acid butyl ester 10-20 parts, hydrophily unsaturated organic acid 0.5-9 parts, function monomer 3-7 parts, anion emulsifier 0.3-2.5 parts,
Initiator 0.2-2 parts, oxidant 0.05-0.25 parts, reducing agent 0.05-0.25 parts.
The hydrophily unsaturated organic acid be acrylic acid, methacrylic acid, itaconic acid in one kind or mentioned component with
Arbitrary proportion mixes.
The anion emulsifier is in dodecyl sodium sulfate, neopelex, lauryl sodium sulfate
It is a kind of or above-mentioned mix in any proportion.
The initiator is one kind in sodium peroxydisulfate, ammonium persulfate or potassium peroxydisulfate or above-mentioned with arbitrary proportion mixing.
The oxidant is that one kind or mentioned component in hydrogen peroxide, TBHP are mixed with arbitrary proportion.
The reducing agent is sodium formaldehyde sulfoxylate or one kind or mentioned component in sodium hydrogensulfite with arbitrary proportion mixing.
The function monomer is vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane, ethene
One kind or mentioned component in ethyl triethoxy silicane alkane, MTES is with arbitrary proportion mixing.
The preparation method is comprised the following steps：
a1:It is prepared by mix monomer：Under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, acrylic acid fourth
Ester, hydrophily unsaturated organic acid, function monomer, anion emulsifier, initiator, add and are pre-mixed in pre-emulsification cylinder,
Obtain mix monomer；
Said components content is respectively according to the mass fraction：Water 65-90 parts, methyl methacrylate 50-90 parts, acrylic acid
Different monooctyl ester 60-90 parts, butyl acrylate 10-20 parts, hydrophily unsaturated organic acid 0.5-9 parts, function monomer 3-7 parts, it is cloudy from
Sub- emulsifying agent 0.24-2.0 parts, initiator 0.14-1.4 parts.
b1:Polymerization：65-90 parts water and anion emulsifier 0.06-0.5 parts are added in reactor, 82-87 is warmed up to
DEG C, the mix monomer 5%-10% of a1 steps is added, 3-8 minutes are stirred, add initiator 0.06-0.6 parts to carry out chemical reaction,
Reaction temperature is 82-87 DEG C, and residue a1 step mix monomers are added dropwise after minute in reaction time 20-40, and time for adding 160-240 divides
Clock, is incubated 1-2 hours after completion of dropping, holding temperature is 84-87 DEG C.
c1:After eliminate：B1 products therefroms are cooled to 75-80 DEG C, and oxidant 0.05-0.25 parts are added dropwise, after 15 minutes
Reducing agent 0.05-0.25 parts are added dropwise, after dripping 20-40 minutes are incubated, then cool to 45-55 DEG C, obtained final product anti-with Protection glue
The colorful continuous phase silicone acrylic emulsion answered.
Beneficial effect：
1st, the present invention meets the requirement to performance using acrylic ester aquosity system, using in control unsaturated organic acid
Negatively charged carboxyl-content, orientation reacts quantitative thickening with cation Protection glue, reaches that multicolor finish is not stratified, does not flow
The effect of extension, therefore be not required to add thickener, it is cost-effective, and the excellent resistance to water of offer is provided, water-whitening resistance, according to
GB/T 1733-1993 standards are tested, and soak 96H in deionized water in 22-24 DEG C without foaming, dry linting, loss of gloss, discoloration etc.
It is abnormal.There is obvious advantage using the competing condition ratio of thickener with tradition；
2nd, the present invention makees solvent using water, and water soluble acrylic acid acrylate and vinyl acetate emulsion meets environmental requirement, greatly reduces VOC
Discharge, and the actual bodily harm to workmen, the present invention's measures with the colorful continuous phase silicone acrylic emulsion of Protection glue reaction
VOC be 8-13g/L；
3rd, the colorful continuous phase silicone acrylic emulsion with Protection glue reaction of the invention, a diameter of 60-80nm of emulsion, with excellent
Transparency, with this have it is splendid with paint permeability；
4th, the colorful continuous phase silicone acrylic emulsion with Protection glue reaction of the invention, is using silicon crosslinking technological, in mixing list
Two or more organosilicon is mixed into during body, with excellent adhesive force, on a glass emulsion adhesive force is 0 grade；
5th, the colorful continuous phase silicone acrylic emulsion reacted with Protection glue of the invention is prepared using semicontinuous dropwise reaction method, whole
Individual reaction react at a temperature of 45-87 DEG C and is carried out, and entirely reacting can be carried out under relatively mild environment, it is ensured that reaction it is steady
It is qualitative.Meanwhile, whole reaction process is simple, greatly reduces production cost；
6th, the solid content of the obtained emulsion of the present invention is 30-50%：PH value is 3.0-5.0；Rotary viscosity is：0-
2000cps(3#/12R,25℃)；
7th, according to GB/T 9267-1988 test, the present invention with Protection glue reaction colorful continuous phase silicone acrylic emulsion into
Film temperature is 13-18 DEG C, with excellent splitting resistance；
8th, the requirement according to JG/T 3003-93 to viscosity stability, the colorful company with Protection glue reaction that the present invention is worth
Continuous phase silicone acrylic emulsion is met under the conditions of 0-30 DEG C, is stored within 6 months, and it is interval that finished product paint viscosity is maintained at 70-90KU.
Specific embodiment：
The present invention's is prepared with the colorful continuous phase silicone acrylic emulsion of Protection glue reaction by the raw material that following parts by weight are constituted：
It is water 130-180 parts, methyl methacrylate 50-90 parts, Isooctyl acrylate monomer 60-90 parts, butyl acrylate 10-20 parts, hydrophilic
Property unsaturated organic acid 0.5-9 parts, function monomer 3-7 parts, anion emulsifier 0.3-2.5 parts, initiator 0.2-2 parts, oxidation
Agent 0.05-0.25 parts, reducing agent 0.05-0.25 parts.By methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, parent
Aqueous unsaturated organic acid, function monomer form silicone acrylic emulsion in the emulsification for being aided with emulsifying agent.
The present invention is acrylic acid, first with the hydrophily unsaturated organic acid of the colorful continuous phase silicone acrylic emulsion of Protection glue reaction
One kind or mentioned component in base acrylic acid, itaconic acid is with arbitrary proportion mixing.Because unsaturated organic acid is water-soluble monomer,
Excellent adhesive force can be increased, and be surface active monomer, there is provided the ability with Protection glue orientation reaction.
The present invention with Protection glue reaction colorful continuous phase silicone acrylic emulsion anion emulsifier be dodecyl sodium sulfate,
One kind in neopelex, lauryl sodium sulfate above-mentioned mixes in any proportion.Due to anion emulsifier
Excellent emulsifiability and excellent low surface tension performance, thus consumption is less, the micella of formation is also less, little beneficial to preparing
Particle diameter emulsion.
The present invention is sodium peroxydisulfate, ammonium persulfate or mistake with the initiator of the colorful continuous phase silicone acrylic emulsion of Protection glue reaction
One kind or above-mentioned with arbitrary proportion mixing in potassium sulfate.Free radical, and oneself are readily decomposed to after being heated due to persulfate
The reaction such as free radical grafting, copolymerization, crosslinking can be produced with activated double bonds in reaction system by base, emulsion is formed after dip-coating
Network structure, improves the mechanical property of film forming.
The present invention is hydrogen peroxide or t-butyl peroxy with the oxidant of the colorful continuous phase silicone acrylic emulsion of Protection glue reaction
Change one kind or above-mentioned arbitrary proportion mixing of hydrogen, and reducing agent agent is one kind or above-mentioned any ratio of sodium formaldehyde sulfoxylate or sodium hydrogensulfite
Example mixing.Organic peroxide itself has alkalescent, and one kind or above-mentioned arbitrary proportion of sodium formaldehyde sulfoxylate or sodium hydrogensulfite are mixed
It is in faintly acid to close.The addition of oxidant and reducing agent, the further stable acid-base balance of chemical reaction system, beneficial to chemical reaction
Stablize and carry out.
The present invention with Protection glue reaction colorful continuous phase silicone acrylic emulsion function monomer be vinyltrimethoxy silane,
One kind or mentioned component in methacryloxypropyl trimethoxy silane, the silicon polymers of allyl methacrylate with appoint
Meaning ratio mixes.The introducing of silane coupler, can provide enough degrees of cross linking so that emulsion film forming is fine and close, there is provided excellent is resistance to
Aqueous energy and adhesive force.
Each embodiment is described in detail with reference to table 1-3, but does not therefore limit the invention to the reality
Apply in the range of example：
A kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction of embodiment 1
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight are constituted：160 parts of water, methacrylic acid
55 parts of methyl esters, 60 parts of Isooctyl acrylate monomer, 10 parts of butyl acrylate, 1 part of acrylic acid, 1 part of vinyltrimethoxy silane, methyl
2 parts of acryloxypropyl trimethoxy silane, 0.3 part of dodecyl sodium sulfate, 0.25 part of ammonium persulfate, hydrogen peroxidase 10 .05
Part, 0.05 part of sodium hydrogensulfite
Preparation process is as follows：
a1:Monomer mixes：Under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, third
Olefin(e) acid, vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane, dodecyl sodium sulfate, persulfuric acid
Ammonium is weighed in emulsion tank stirs successively, obtains mix monomer；
The parts by weight of said components are consisted of：80 parts of water, 55 parts of methyl methacrylate, 60 parts of Isooctyl acrylate monomer,
10 parts of butyl acrylate, 1 part of acrylic acid, 1 part of vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane
2 parts, 0.24 part of dodecyl sodium sulfate, 0.18 part of ammonium persulfate；
b1:Polymerization：0.06 part of 80 parts of water and dodecyl sodium sulfate are added in reactor, 82 DEG C are warmed up to, a1 is added
The mix monomer 5% of step, stirs 5 minutes, adds 0.07 part of ammonium persulfate to carry out chemical reaction, and reaction temperature is 84 DEG C, instead
Residue a1 step mix monomers are added dropwise between seasonable after 20 minutes, time for adding 120 minutes is incubated 1 hour after completion of dropping, insulation
Temperature is 85 DEG C.
C1:After eliminate：B1 gained emulsions are cooled to 75 DEG C, and hydrogen peroxidase 10 .05 parts are added dropwise, be added dropwise after 15 minutes sub-
0.05 part of niter cake, after dripping 30 minutes are incubated, and then cool to 50 DEG C, obtain final product the colorful company with Protection glue reaction
Continuous phase silicone acrylic emulsion.
The solid content of obtained emulsion is 45%, and pH value is 4.5；Rotary viscosity is：1600cps(3#/12R,25℃)；
According to the detection method GB/T 18582-2008 standard testings of VOC, the colorful company with Protection glue reaction of the present invention
The VOC that continuous phase silicone acrylic emulsion is measured is 11.5g/L, meets environmental requirement；
Tested according to GB/T 9267-1988, the film forming with the colorful continuous phase silicone acrylic emulsion of Protection glue reaction of the present invention
Temperature is 15 DEG C, with excellent anti-cracking performance；
Tested according to U.S. PSS particle size analyzers, a diameter of 64nm of the emulsion is very tiny, with excellent transparency,
Give with the excellent penetrating degree of paint.
Tested according to GB/T 1733-1993 standards, in deionized water in 22-24 DEG C soak 96h without foaming, loss of gloss,
Discoloration etc. is abnormal, has obvious advantage using the competing condition ratio of thickener with tradition.
Stability：According to requirements of the JG/T 3003-93 to viscosity stability, under the conditions of 0-30 DEG C, store within 6 months, into
It is interval that product paint viscosity is maintained at 80-83KU.
A kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction of embodiment 2
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight are constituted：130 parts of water, methacrylic acid
90 parts of methyl esters, 90 parts of Isooctyl acrylate monomer, 20 parts of butyl acrylate, 9 parts of methacrylic acid, 2 parts of vinyltrimethoxy silane,
5 parts of methacryloxypropyl trimethoxy silane, 2.5 parts of neopelex, 2 parts of sodium peroxydisulfate, hydrogen peroxide
0.25 part, 0.25 part of sodium hydrogensulfite
Preparation process is as follows：
a1:Monomer mixes：Under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, first
Base acrylic acid, vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane, neopelex,
Sodium peroxydisulfate is weighed in emulsion tank stirs successively, obtains mix monomer；
The parts by weight of said components are consisted of：65 parts of water, 90 parts of methyl methacrylate, 90 parts of Isooctyl acrylate monomer,
20 parts of butyl acrylate, 9 parts of methacrylic acid, 2 parts of vinyltrimethoxy silane, methacryloxypropyl trimethoxy
5 parts of silane, 2 parts of neopelex, 1.4 parts of sodium peroxydisulfate；
b1:Polymerization：0.5 part of 65 parts of water and neopelex are added in reactor, 87 DEG C are warmed up to, a1 is added
The mix monomer 10% of step, stirs 8 minutes, adds 0.6 part of sodium peroxydisulfate to carry out chemical reaction, and reaction temperature is 87 DEG C, instead
Residue a1 step mix monomers are added dropwise between seasonable after 40 minutes, time for adding 100 minutes is incubated 2 hours after completion of dropping, insulation
Temperature is 87 DEG C；
c1:After eliminate：B1 products therefroms are cooled to 80 DEG C, and hydrogen peroxidase 10 .25 parts are added dropwise, be added dropwise after 15 minutes sub-
0.25 part of niter cake, after dripping 40 minutes are incubated, and then cool to 55 DEG C, obtain final product the colorful company with Protection glue reaction
Continuous phase silicone acrylic emulsion.
The solid content of prepared emulsion is 45.2%, and pH value is 4.3；Rotary viscosity is 1800cps (3#/12R, 25 DEG C)；
According to the detection method GB/T 18582-2008 standard testings of VOC, the colorful company with Protection glue reaction of the present invention
The VOC that continuous phase silicone acrylic emulsion is measured is 9g/L, meets environmental requirement；
Tested according to GB/T 9267-1988, the film forming with the colorful continuous phase silicone acrylic emulsion of Protection glue reaction of the present invention
Temperature is 16.2 DEG C, with excellent anti-cracking performance；
Tested according to U.S. PSS particle size analyzers, a diameter of 70nm of the emulsion is very tiny, with excellent transparency,
Give with the excellent penetrating degree of paint；
Tested according to GB/T 1733-1993 standards, in deionized water in 22-24 DEG C soak 96H without foaming, loss of gloss,
Discoloration etc. is abnormal, has obvious advantage using the competing condition ratio of thickener with tradition；
Stability：According to requirements of the JG/T 3003-93 to viscosity stability, under the conditions of 0-30 DEG C, store within 6 months, into
It is interval that product paint viscosity is maintained at 82-85KU.
A kind of colorful continuous phase silicone acrylic emulsion with Protection glue reaction of embodiment 3
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight are constituted：180 parts of water, methacrylic acid
70 parts of methyl esters, 75 parts of Isooctyl acrylate monomer, 15 parts of butyl acrylate, 4 parts of itaconic acid, 2 parts of vinyltrimethoxy silane, methyl
3 parts of acryloxypropyl trimethoxy silane, 1.0 parts of lauryl sodium sulfate, 1.0 parts of potassium peroxydisulfate, tert-butyl hydroperoxide
0.1 part of hydrogen, 0.1 part of sodium formaldehyde sulfoxylate
Preparation process is as follows：
a1:Monomer mixes：Under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, clothing
Health acid, vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane, lauryl sodium sulfate, persulfuric acid
Potassium is weighed in emulsion tank stirs successively, obtains mix monomer；
The parts by weight of said components are consisted of：90 parts of water, 70 parts of methyl methacrylate, 75 parts of Isooctyl acrylate monomer,
15 parts of butyl acrylate, 4 parts of itaconic acid, 2 parts of vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane
3 parts, 0.8 part of lauryl sodium sulfate, 0.7 part of potassium peroxydisulfate；
b1:Polymerization：0.2 part of 90 parts of water and lauryl sodium sulfate are added in reactor, 85 DEG C are warmed up to, a1 steps are added
Rapid mix monomer 8%, stirs 3 minutes, adds 0.3 part of potassium peroxydisulfate to carry out chemical reaction, and reaction temperature is 82 DEG C, during reaction
Between after 30 minutes be added dropwise residue a1 step mix monomers, time for adding 60 minutes, after completion of dropping insulation 1 hour, holding temperature
For 85 DEG C；
c1:After eliminate：B1 gained emulsions are cooled to 75 DEG C, and 0.1 part of TBHP is added dropwise, dripped after 15 minutes
Plus 0.1 part of sodium formaldehyde sulfoxylate, 20 minutes are incubated after dripping, 45 DEG C are then cooled to, obtain final product the colorful company with Protection glue reaction
Continuous phase silicone acrylic emulsion.
The solid content of prepared emulsion is 45.5%, and pH value is 4.5；Rotary viscosity is：1700cps(3#/12R,25℃)；
According to the detection method GB/T 18582-2008 standard testings of VOC, the colorful company with Protection glue reaction of the present invention
The VOC that continuous phase silicone acrylic emulsion is measured is 12.1g/L, meets environmental requirement；
Tested according to GB/T 9267-1988, the film forming with the colorful continuous phase silicone acrylic emulsion of Protection glue reaction of the present invention
Temperature is 17.1 DEG C, with excellent anti-cracking performance；
Tested according to U.S. PSS particle size analyzers, a diameter of 75nm of the emulsion is very tiny, with excellent transparency,
Give with the excellent penetrating degree of paint；
Tested according to GB/T 1733-1993 standards, in deionized water in 22-24 DEG C soak 96h without foaming, loss of gloss,
Discoloration etc. is abnormal, has obvious advantage using the competing condition ratio of thickener with tradition；
Stability：According to requirements of the JG/T 3003-93 to viscosity stability, under the conditions of 0-30 DEG C, store within 6 months, into
It is interval that product paint viscosity is maintained at 77-80KU.
Coating detection formula used in embodiment 1-3 is shown in Table 1-3；
Paint based on mixed proportion：Colloid：Continuous phase=4:2:4.
Table 1：7% Protection glue
| Water | 93 |
| Protection glue | 7 |
Table 2：Base paint
| Composition | Mass fraction |
| Water | 480 |
| Dispersant | 3 |
| Cellulose | 10 |
| PH conditioning agents | 2 |
| Defoamer | 3 |
| Bactericide | 2 |
| Titanium dioxide | 10 |
| Kaolin | 80 |
| Ahmedabad richness emulsion RS-2788 | 350 |
| C-12 (coalescents) | 10 |
| Ethylene glycol | 10 |
| 7% Protection glue | 40 |
Table 3：Continuous phase
| This silicone acrylic emulsion | 500 |
| Water | 416 |
| Ethylene glycol | 40 |
| C-12 | 32 |
| Bactericide | 2 |
Claims (9)
1. a kind of colorful continuous phase silicone acrylic emulsion of and Protection glue reaction, it is characterised in that：It is described colorful with Protection glue reaction
Continuous phase silicone acrylic emulsion is prepared by the raw material of following mass fraction：Water 130-180 parts, methyl methacrylate 50-90 parts, propylene
The different monooctyl ester 60-90 parts of acid, butyl acrylate 10-20 parts, hydrophily unsaturated organic acid 0.5-9 parts, function monomer 3-7 parts, the moon
Ionic emulsifying agent 0.3-2.5 parts, initiator 0.2-2 parts, oxidant 0.05-0.25 parts, reducing agent 0.05-0.25 parts.
2. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The hydrophily
Unsaturated organic acid is that one kind or mentioned component in acrylic acid, methacrylic acid, itaconic acid are mixed with arbitrary proportion.
3. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The anion
Emulsifying agent is one kind in dodecyl sodium sulfate, neopelex, lauryl sodium sulfate or above-mentioned by arbitrarily ratio
Example mixing.
4. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The initiator
For one kind in sodium peroxydisulfate, ammonium persulfate or potassium peroxydisulfate or above-mentioned with arbitrary proportion mixing.
5. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The oxidant
For one kind in hydrogen peroxide or TBHP or above-mentioned with arbitrary proportion mixing.
6. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The reducing agent
It is that the one kind or mentioned component in sodium formaldehyde sulfoxylate or sodium hydrogensulfite is mixed with arbitrary proportion.
7. the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue according to claim 1, it is characterised in that：The function list
Body is vinyltrimethoxy silane, methacryloxypropyl trimethoxy silane, VTES, methyl
One kind or mentioned component in triethoxysilane is with arbitrary proportion mixing.
8. the preparation method of the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue described in claim 1-7 any one, it is special
Levy and be：Step is as follows：
a1:It is prepared by mix monomer：Under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, parent
Aqueous unsaturated organic acid, function monomer, anion emulsifier, initiator, add and are pre-mixed in pre-emulsification cylinder, are mixed
Close monomer；
Said components content is counted be respectively by weight：Water 65-90 parts, methyl methacrylate 50-90 parts, acrylic acid are different pungent
Ester 60-90 parts, butyl acrylate 10-20 parts, hydrophily unsaturated organic acid 0.5-9 parts, function monomer 3-7 parts, anion breast
Agent 0.24-2.0 part, initiator 0.14-1.4 parts；
b1:Polymerization：65-90 parts water and anion emulsifier 0.06-0.5 parts are added in reactor, 82-87 DEG C is warmed up to, plus
Enter the mix monomer 5%-10% of a1 steps, stir 3-8 minutes, add initiator 0.06-0.6 parts to carry out chemical reaction, react
Temperature is 82-87 DEG C, dropwise addition residue a1 step mix monomers after minute in reaction time 20-40, time for adding 160-240 minutes,
1-2 hours are incubated after completion of dropping, holding temperature is 84-87 DEG C；
c1:After eliminate：B1 products therefroms are cooled to 75-80 DEG C, and oxidant 0.05-0.25 parts are added dropwise, be added dropwise after 15 minutes
Reducing agent 0.05-0.25 parts, after dripping 20-40 minutes are incubated, and then cool to 45-55 DEG C, are obtained final product and Protection glue reaction
Colorful continuous phase silicone acrylic emulsion.
9. the application of the colorful continuous phase silicone acrylic emulsion for reacting with Protection glue described in claim 1-7 any one.
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| CN106543333A (en) * | 2016-10-27 | 2017-03-29 | 万华化学集团股份有限公司 | High antiseptic property acrylic emulsion and preparation method thereof, water soluble acrylic acid anticorrosive paint |
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