CN106632816B - A kind of colorful continuous phase silicone acrylic emulsion and preparation method thereof reacted with protective glue - Google Patents

A kind of colorful continuous phase silicone acrylic emulsion and preparation method thereof reacted with protective glue Download PDF

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Publication number
CN106632816B
CN106632816B CN201610916938.7A CN201610916938A CN106632816B CN 106632816 B CN106632816 B CN 106632816B CN 201610916938 A CN201610916938 A CN 201610916938A CN 106632816 B CN106632816 B CN 106632816B
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continuous phase
acrylic emulsion
protective glue
reacted
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CN106632816A (en
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严东源
黄天愿
杨小书
富岛和宪
佘玲丽
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Zhongshan Badefu Chemical Technology Co Ltd
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Zhongshan Badefu Chemical Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers 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
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/16Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • C08F2/22Emulsion polymerisation
    • C08F2/24Emulsion polymerisation with the aid of emulsifying agents
    • C08F2/26Emulsion polymerisation with the aid of emulsifying agents anionic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers 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
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/14Methyl esters, e.g. methyl (meth)acrylate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D143/00Coating 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
    • C09D143/04Homopolymers or copolymers of monomers containing silicon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers 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
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10Esters
    • C08F220/12Esters of monohydric alcohols or phenols
    • C08F220/16Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1808C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate

Abstract

The invention discloses a kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue, the lotion is prepared by the raw material that following mass fraction forms: 130-180 parts of water, 50-90 parts of methyl methacrylate, 60-90 parts of Isooctyl acrylate monomer, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophily unsaturated organic acid, 3-7 parts of function monomer, 0.3-2.5 parts of anion emulsifier, 0.2-2 parts of initiator, 0.05-0.25 parts of oxidant, 0.05-0.25 parts of reducing agent;The colorful continuous phase silicone acrylic emulsion obtained reacted with protective glue had both had excellent transparency, weatherability, with paint stability; orientation cross-linking reaction can occur with protective glue simultaneously; addition thickener is not needed in preparing colorful continuous phase, therefore there is excellent water resistance, water-whitening resistance.

Description

A kind of colorful continuous phase silicone acrylic emulsion and preparation method thereof reacted with protective glue
Technical field:
The present invention relates to a kind of silicone acrylic emulsions, and in particular to is a kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue And preparation method thereof.
Background technique:
With the continuous improvement of people's living standards, the type of building coating is also increasingly varied.It is applied in these buildings Water-in-water multicolor coating occupies extremely important status in material, also obtains very big development in recent years.Water-soluble colorful coating Novelty and diversity are added for building coating, has also opened up range of choice for people.Multicolor finish is divided into base paint and company Continuous phase two parts, when preparing continuous phase, traditional pure C or the third continuous phase of silicon need to add a certain amount of thickener to reach Certain viscosity is not stratified.Moreover, the addition after traditional multicolor finish thickener being prepared into needs in coating, makes Obtain often will appear water-fast white difference, the bad phenomenon of water-fast bubbling during application.Therefore, a kind of and protection how is developed Glue orientation reaction reaches acrylic emulsion of the thickening effect without additionally adding thickener, is a disaster of current building coating Topic.
Summary of the invention:
It is an object of the invention to overcome the shortcomings of existing market product, a kind of stabilization for being both able to satisfy multicolor finish is provided Property, and there are 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 invention is to provide a kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue The preparation method of simple process.
The object of the present invention is achieved like this: a kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue, by following Prepared by the raw material of mass fraction: 130-180 parts of water, 50-90 parts of methyl methacrylate, 60-90 parts of Isooctyl acrylate monomer, propylene 10-20 parts of acid butyl ester, 0.5-9 parts of hydrophily unsaturated organic acid, 3-7 parts of function monomer, 0.3-2.5 parts of anion emulsifier, 0.2-2 parts of initiator, 0.05-0.25 parts of oxidant, 0.05-0.25 parts of reducing agent.
The hydrophily unsaturated organic acid be one of acrylic acid, methacrylic acid, itaconic acid or mentioned component with Arbitrary proportion mixing.
The anion emulsifier is dodecyl sodium sulfate, in neopelex, lauryl sodium sulfate It is a kind of or above-mentioned mix in any proportion.
The initiator is one of sodium peroxydisulfate, ammonium persulfate or potassium peroxydisulfate or above-mentioned is mixed with arbitrary proportion.
The oxidant is that one of hydrogen peroxide, tert-butyl hydroperoxide or mentioned component are mixed with arbitrary proportion.
The reducing agent is that one of sodium formaldehyde sulfoxylate or sodium hydrogensulfite or mentioned component are mixed with arbitrary proportion.
The function monomer is vinyltrimethoxysilane, methacryloxypropyl trimethoxy silane, ethylene One of ethyl triethoxy silicane alkane, methyltriethoxysilane or mentioned component are mixed with arbitrary proportion.
The preparation method comprises the following steps:
A1: mix monomer preparation: 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 are added in pre-emulsification cylinder and are pre-mixed, Obtain mix monomer;
Above components content is respectively as follows: 65-90 parts of water, 50-90 parts of methyl methacrylate, acrylic acid according to the mass fraction Different monooctyl ester 60-90 parts, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophily unsaturated organic acid, 3-7 parts of function monomer, yin from Sub- emulsifier 0.24-2.0 parts, 0.14-1.4 parts of initiator.
B1: polymerization: 0.06-0.5 parts of 65-90 parts of water and anion emulsifier are added in reaction kettle, is warming up to 82-87 DEG C, the mix monomer 5%-10% of a1 step is added, stirs 3-8 minutes, is added initiator 0.06-0.6 parts and is chemically reacted, Reaction temperature is 82-87 DEG C, and residue a1 step mix monomer is added dropwise after reaction time 20-40 minute, and time for adding 160-240 divides Clock keeps the temperature 1-2 hours after being added dropwise, and holding temperature is 84-87 DEG C.
C1: rear to eliminate: b1 products therefrom being cooled to 75-80 DEG C, and is added dropwise 0.05-0.25 parts of oxidant, after 15 minutes It is added dropwise reducing agent 0.05-0.25 parts, 20-40 minutes is kept the temperature after dripping, cools to 45-55 DEG C then to get anti-with protective glue The colorful continuous phase silicone acrylic emulsion answered.
The utility model has the advantages that
1, the present invention meets the requirement to performance using acrylic ester aquosity system, using in control unsaturated organic acid Negatively charged carboxyl-content, orientation and cationic protective glue react quantitative thickening, reach that multicolor finish is not stratified, does not flow The effect of extension, therefore it is not required to addition thickener, save the cost, and play and excellent water resistance is provided, water-whitening resistance, according to GB/T 1733-1993 standard is tested, and impregnates 96H without blistering, picking, loss of gloss, discoloration etc. in 22-24 DEG C in deionized water It is abnormal.There is apparent advantage using the competing condition ratio of thickener with tradition;
2, 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 construction personnel, the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue measure VOC be 8-13g/L;
3, the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue, lotion diameter are 60-80nm, are had excellent Transparency, with this with it is splendid with paint permeability;
4, the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue is using silicon crosslinking technological, in mixing list It is mixed into two or more organosilicon when body, there is excellent adhesive force, lotion adhesive force is 0 grade on a glass;
5, the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue is prepared using semicontinuous dropwise reaction method, whole A reaction is reacted at a temperature of 45-87 DEG C to be carried out, and entire reaction can carry out under relatively mild environment, ensure that the steady of reaction It is qualitative.Meanwhile entire reaction process is simple, greatly reduces production cost;
6, it is 3.0-5.0 that the solid content of lotion produced by the present invention, which is 30-50%:PH value,;Rotary viscosity are as follows: 0- 2000cps(3#/12R,25℃);
7, according to GB/T 9267-1988 test, the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue at Film temperature is 13-18 DEG C, has excellent splitting resistance;
8, the requirement according to JG/T 3003-93 to viscosity stability, the colorful company reacted with protective glue that the present invention is worth Continuous phase silicone acrylic emulsion meets under the conditions of 0-30 DEG C, stores within 6 months, finished product paint viscosity is maintained at the section 70-90KU.
Specific embodiment:
The colorful continuous phase silicone acrylic emulsion reacted with protective glue of the invention is prepared by the raw material that following parts by weight form: It is 130-180 parts of water, 50-90 parts of methyl methacrylate, 60-90 parts of Isooctyl acrylate monomer, 10-20 parts of butyl acrylate, hydrophilic Property 0.5-9 parts of unsaturated organic acid, 3-7 parts of function monomer, 0.3-2.5 parts of anion emulsifier, 0.2-2 parts of initiator, oxidation 0.05-0.25 parts of agent, 0.05-0.25 parts of reducing agent.Pass through 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 emulsifier.
The hydrophily unsaturated organic acid for the colorful continuous phase silicone acrylic emulsion that the present invention is reacted with protective glue is acrylic acid, first One of base acrylic acid, itaconic acid or mentioned component are mixed with arbitrary proportion.Since unsaturated organic acid is water-soluble monomer, It can increase excellent adhesive force, and be surface active monomer, the ability with protective glue orientation reaction is provided.
The anion emulsifier for the colorful continuous phase silicone acrylic emulsion that the present invention is reacted with protective glue be dodecyl sodium sulfate, One of neopelex, lauryl sodium sulfate above-mentioned mix in any proportion.Due to anion emulsifier Excellent emulsifiability and excellent low surface tension performance, thus dosage is less, the micella of formation is also smaller, is conducive to prepare small Partial size lotion.
The initiator for the colorful continuous phase silicone acrylic emulsion that the present invention is reacted with protective glue is sodium peroxydisulfate, ammonium persulfate or mistake One of potassium sulfate above-mentioned is mixed with arbitrary proportion.Free radical is readily decomposed to after being heated due to persulfate, and certainly Grafting, copolymerization, crosslinking etc. can be generated free radicals with activated double bonds in the reaction system by base to react, form lotion after dip-coating Reticular structure improves the mechanical property of film forming.
The oxidant for the colorful continuous phase silicone acrylic emulsion that the present invention is reacted with protective glue is hydrogen peroxide or t-butyl peroxy Change one kind or the mixing of above-mentioned arbitrary proportion of hydrogen, and reducing agent agent is one kind or the 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 closes weakly acidic.The acid-base balance of chemical reaction system is further stablized in the addition of oxidant and reducing agent, is conducive to chemical reaction Stablize carry out.
The function monomer for the colorful continuous phase silicone acrylic emulsion that the present invention is reacted with protective glue be vinyltrimethoxysilane, Methacryloxypropyl trimethoxy silane, one of the silicon polymers of allyl methacrylate or mentioned component are to appoint The mixing of meaning ratio.The introducing of silane coupling agent can provide enough degrees of cross linking, so that emulsion film forming is fine and close, provide excellent resistance to Aqueous energy and adhesive force.
Each embodiment is described in detail below with reference to table 1-3, but does not therefore limit the invention to the reality Within the scope of applying:
A kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue of embodiment 1
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight form: 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 vinyltrimethoxysilane, methyl 2 parts of acryloyloxypropyltrimethoxysilane, 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 step is as follows:
A1: monomer mixing: under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, third Olefin(e) acid, vinyltrimethoxysilane, methacryloxypropyl trimethoxy silane, dodecyl sodium sulfate, persulfuric acid Ammonium is successively weighed in emulsion tank and stirs evenly, and obtains mix monomer;
The parts by weight of said components form are as follows: 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 vinyltrimethoxysilane, 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 reaction kettle, is warming up to 82 DEG C, a1 is added The mix monomer 5% of step stirs 5 minutes, is added 0.07 part of ammonium persulfate and is chemically reacted, and reaction temperature is 84 DEG C, instead Residue a1 step mix monomer is added dropwise between seasonable after twenty minutes, time for adding 120 minutes, keeps the temperature 1 hour after being added dropwise, keeps the temperature Temperature is 85 DEG C.
C1: rear to eliminate: lotion obtained by b1 being cooled to 75 DEG C, and is added dropwise .05 parts of hydrogen peroxidase 10, is added dropwise after 15 minutes sub- 0.05 part of sodium bisulfate, 30 minutes are kept the temperature after dripping, cools to 50 DEG C then to get the colorful company reacted with protective glue Continuous phase silicone acrylic emulsion.
The solid content of lotion obtained is 45%, pH value 4.5;Rotary viscosity are as follows: 1600cps (3#/12R, 25 DEG C);
According to the detection method GB/T 18582-2008 standard testing of VOC, the colorful company of the invention reacted with protective glue The VOC that continuous phase silicone acrylic emulsion measures is 11.5g/L, meets environmental requirement;
It is tested according to GB/T 9267-1988, the film forming of the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue Temperature is 15 DEG C, has excellent anti-cracking performance;
It is tested according to U.S.'s PSS particle size analyzer, which is 64nm, it is very tiny, there is excellent transparency, Assign the penetrating degree for matching Qi Youyi.
Tested according to GB/T 1733-1993 standard, in deionized water in 22-24 DEG C impregnate 96h without blistering, loss of gloss, Discoloration etc. is abnormal, has apparent advantage using the competing condition ratio of thickener with tradition.
Stability: the requirement according to JG/T 3003-93 to viscosity stability stores for 6 months under the conditions of 0-30 DEG C, at Product paint viscosity is maintained at the section 80-83KU.
A kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue of embodiment 2
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight form: 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 vinyltrimethoxysilane, 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 step is as follows:
A1: monomer mixing: under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, first Base acrylic acid, vinyltrimethoxysilane, methacryloxypropyl trimethoxy silane, neopelex, Sodium peroxydisulfate is successively weighed in emulsion tank and stirs evenly, and obtains mix monomer;
The parts by weight of said components form are as follows: 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 vinyltrimethoxysilane, 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 reaction kettle, is warming up to 87 DEG C, a1 is added The mix monomer 10% of step stirs 8 minutes, is added 0.6 part of sodium peroxydisulfate and is chemically reacted, and reaction temperature is 87 DEG C, instead Residue a1 step mix monomer is added dropwise between seasonable after forty minutes, time for adding 100 minutes, keeps the temperature 2 hours after being added dropwise, keeps the temperature Temperature is 87 DEG C;
C1: rear to eliminate: b1 products therefrom being cooled to 80 DEG C, and is added dropwise .25 parts of hydrogen peroxidase 10, is added dropwise after 15 minutes sub- 0.25 part of sodium bisulfate, 40 minutes are kept the temperature after dripping, cools to 55 DEG C then to get the colorful company reacted with protective glue Continuous phase silicone acrylic emulsion.
The solid content that lotion is made is 45.2%, pH value 4.3;Rotary viscosity is 1800cps (3#/12R, 25 DEG C);
According to the detection method GB/T 18582-2008 standard testing of VOC, the colorful company of the invention reacted with protective glue The VOC that continuous phase silicone acrylic emulsion measures is 9g/L, meets environmental requirement;
It is tested according to GB/T 9267-1988, the film forming of the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue Temperature is 16.2 DEG C, has excellent anti-cracking performance;
It is tested according to U.S.'s PSS particle size analyzer, which is 70nm, it is very tiny, there is excellent transparency, Assign the penetrating degree for matching Qi Youyi;
Tested according to GB/T 1733-1993 standard, in deionized water in 22-24 DEG C impregnate 96H without blistering, loss of gloss, Discoloration etc. is abnormal, has apparent advantage using the competing condition ratio of thickener with tradition;
Stability: the requirement according to JG/T 3003-93 to viscosity stability stores for 6 months under the conditions of 0-30 DEG C, at Product paint viscosity is maintained at the section 82-85KU.
A kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue of embodiment 3
The colorful continuous phase silicone acrylic emulsion is prepared by the raw material that following parts by weight form: 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 vinyltrimethoxysilane, methyl 3 parts of acryloyloxypropyltrimethoxysilane, 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 step is as follows:
A1: monomer mixing: under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, clothing Health acid, vinyltrimethoxysilane, methacryloxypropyl trimethoxy silane, lauryl sodium sulfate, persulfuric acid Potassium is successively weighed in emulsion tank and stirs evenly, and obtains mix monomer;
The parts by weight of said components form are as follows: 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 vinyltrimethoxysilane, 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 reaction kettle, is warming up to 85 DEG C, a1 step is added Rapid mix monomer 8% stirs 3 minutes, is added 0.3 part of potassium peroxydisulfate and is chemically reacted, and reaction temperature is 82 DEG C, when reaction Between after 30 minutes be added dropwise residue a1 step mix monomer, time for adding 60 minutes, keep the temperature 1 hour after being added dropwise, holding temperature It is 85 DEG C;
C1: rear to eliminate: lotion obtained by b1 being cooled to 75 DEG C, and is added dropwise 0.1 part of tert-butyl hydroperoxide, is dripped after 15 minutes Add 0.1 part of sodium formaldehyde sulfoxylate, keep the temperature 20 minutes after dripping, cools to 45 DEG C then to get the colorful company reacted with protective glue Continuous phase silicone acrylic emulsion.
The solid content that lotion is made is 45.5%, pH value 4.5;Rotary viscosity are as follows: 1700cps (3#/12R, 25 DEG C);
According to the detection method GB/T 18582-2008 standard testing of VOC, the colorful company of the invention reacted with protective glue The VOC that continuous phase silicone acrylic emulsion measures is 12.1g/L, meets environmental requirement;
It is tested according to GB/T 9267-1988, the film forming of the colorful continuous phase silicone acrylic emulsion of the invention reacted with protective glue Temperature is 17.1 DEG C, has excellent anti-cracking performance;
It is tested according to U.S.'s PSS particle size analyzer, which is 75nm, it is very tiny, there is excellent transparency, Assign the penetrating degree for matching Qi Youyi;
Tested according to GB/T 1733-1993 standard, in deionized water in 22-24 DEG C impregnate 96h without blistering, loss of gloss, Discoloration etc. is abnormal, has apparent advantage using the competing condition ratio of thickener with tradition;
Stability: the requirement according to JG/T 3003-93 to viscosity stability stores for 6 months under the conditions of 0-30 DEG C, at Product paint viscosity is maintained at the section 77-80KU.
The detection formula of coating used in embodiment 1-3 is shown in Table 1-3;
It is painted based on mixed proportion: colloid: continuous phase=4:2:4.
Table 1:7% protective glue
Water 93
Protective glue 7
Table 2: base paint
Ingredient Mass fraction
Water 480
Dispersing agent 3
Cellulose 10
PH regulator 2
Defoaming agent 3
Fungicide 2
Titanium dioxide 10
Kaolin 80
Ahmedabad richness lotion RS-2788 350
C-12 (coalescing agent) 10
Ethylene glycol 10
7% protective glue 40
Table 3: continuous phase
This silicone acrylic emulsion 500
Water 416
Ethylene glycol 40
C-12 32
Fungicide 2

Claims (8)

1. a kind of colorful continuous phase silicone acrylic emulsion reacted with protective glue, it is characterised in that: described to react colorful with protective glue Continuous phase silicone acrylic emulsion is prepared by the raw material of following mass fraction: 130-180 parts of water, 50-90 parts of methyl methacrylate, propylene Sour different monooctyl ester 60-90 parts, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophily unsaturated organic acid, 3-7 parts of function monomer, yin 0.3-2.5 parts of ionic emulsifying agent, 0.2-2 parts of initiator, 0.05-0.25 parts of oxidant, 0.05-0.25 parts of reducing agent;
The function monomer is vinyltrimethoxysilane, methacryloxypropyl trimethoxy silane, vinyl three One of Ethoxysilane or mentioned component are mixed with arbitrary proportion.
2. the colorful continuous phase silicone acrylic emulsion reacted according to claim 1 with protective glue, it is characterised in that: the hydrophily Unsaturated organic acid is that one of acrylic acid, methacrylic acid, itaconic acid or mentioned component are mixed with arbitrary proportion.
3. the colorful continuous phase silicone acrylic emulsion reacted according to claim 1 with protective glue, it is characterised in that: the anion Emulsifier be one of dodecyl sodium sulfate, neopelex, lauryl sodium sulfate or it is above-mentioned press any ratio Example mixing.
4. the colorful continuous phase silicone acrylic emulsion reacted according to claim 1 with protective glue, it is characterised in that: the initiator It above-mentioned is mixed for one of sodium peroxydisulfate, ammonium persulfate or potassium peroxydisulfate or with arbitrary proportion.
5. the colorful continuous phase silicone acrylic emulsion reacted according to claim 1 with protective glue, it is characterised in that: the oxidant It above-mentioned is mixed for one of hydrogen peroxide or tert-butyl hydroperoxide or with arbitrary proportion.
6. the colorful continuous phase silicone acrylic emulsion reacted according to claim 1 with protective glue, it is characterised in that: the reducing agent It is mixed for one of sodium formaldehyde sulfoxylate or sodium hydrogensulfite or mentioned component with arbitrary proportion.
7. the preparation method of the colorful continuous phase silicone acrylic emulsion reacted described in claim 1-6 any one with protective glue, special Sign is: steps are as follows:
A1: mix monomer preparation: under normal temperature and pressure, by water, methyl methacrylate, Isooctyl acrylate monomer, butyl acrylate, parent Aqueous unsaturated organic acid, function monomer, anion emulsifier, initiator are added in pre-emulsification cylinder and are pre-mixed, mixed Close monomer;
It is different pungent that above components content is respectively as follows: 65-90 parts of water, 50-90 parts of methyl methacrylate, acrylic acid according to parts by weight 60-90 parts of ester, 10-20 parts of butyl acrylate, 0.5-9 parts of hydrophily unsaturated organic acid, 3-7 parts of function monomer, anion cream 0.24-2.0 parts of agent, 0.14-1.4 parts of initiator;
B1: polymerization: 0.06-0.5 parts of 65-90 parts of water and anion emulsifier are added in reaction kettle, is warming up to 82-87 DEG C, adds Enter the mix monomer 5%-10% of a1 step, stir 3-8 minutes, be added initiator 0.06-0.6 parts and chemically reacted, reacts Temperature is 82-87 DEG C, dropwise addition residue a1 step mix monomer after reaction time 20-40 minute, time for adding 160-240 minutes, 1-2 hours are kept the temperature after being added dropwise, holding temperature is 84-87 DEG C;
C1: rear to eliminate: b1 products therefrom being cooled to 75-80 DEG C, and is added dropwise 0.05-0.25 parts of oxidant, is added dropwise after 15 minutes 0.05-0.25 parts of reducing agent, 20-40 minutes are kept the temperature after dripping, cools to 45-55 DEG C then to get reacting with protective glue Colorful continuous phase silicone acrylic emulsion.
8. colorful continuous phase silicone acrylic emulsion the answering in multicolor finish reacted described in claim 1-6 any one with protective glue With.
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