CN102558935B - Stabilizing agent for lime colloid paint - Google Patents
Stabilizing agent for lime colloid paint Download PDFInfo
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- CN102558935B CN102558935B CN2011104205558A CN201110420555A CN102558935B CN 102558935 B CN102558935 B CN 102558935B CN 2011104205558 A CN2011104205558 A CN 2011104205558A CN 201110420555 A CN201110420555 A CN 201110420555A CN 102558935 B CN102558935 B CN 102558935B
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Abstract
The invention relates to a stabilizing agent for lime colloid paint. The stabilizing agent is prepared by blending 19 weight parts of water, 10 weight parts of polyethyleneglycol mono-methoxy ether acrylate, and 30 weight parts of acrylic acid to prepare a monomer aqueous solution for later use; blending 25 weight parts of water and 0.5 to 2.5 weight parts of ammonium persulfate to prepare an initiator aqueous solution for later use; and adding 1.2 weight parts of sodium methyl allyl sulfonate and 18.5 weight parts of water into a container, heating to the temperature of between 75 and 80 DEGC, dripping the monomer aqueous solution and the initiator aqueous solution, after dripping the monomer aqueous solution and the initiator aqueous solution, heating to the temperature of 87 DEG C forreacting for 2 hours, cooling to the temperature of below 40 DEG C, and adding a sodium hydroxide aqueous solution to regulate the pH value to 7 to 8, wherein the monomer aqueous solution is dripped for 3 hours, and the initiator aqueous solution is dripped for 4 hours. The stabilizing agent has a good effect and is little in using amount, and the prepared lime colloid paint has high performance and is low in cost.
Description
Technical field
The invention belongs to the coatings additive(s) technology of preparing, relate in particular to a kind of lime capital construction and build coatings additive(s).
Background technology
In recent years, along with the petrochemical complex class prices of raw and semifnished materials rise suddenly and sharply, the coating cost is unprecedented soaring, has significantly compressed the profit margin of manufacturing enterprise.Under these circumstances, rely on to excavate " emulsion paint " this matured product potentiality solve the too high problem of production cost difficulty prove effective.The development high-performance, new coating has become the most positive selection of this situation for a change cheaply.Calcium shellac varnish (also claiming sierozem powder coating material) be a kind of with grey calcium powder as active filler, polymkeric substance is the NEW PAINT SYSTEMS FOR BUILDINGS of tackiness agent, it can react with carbon dioxide in air, generates calcium carbonate, has formed a complicated tight rack waterproof layer with film forming matter.So grey calcium powder building coating not only scrub performance and hardness thereof is higher, and the material cost of coating is also lower.The main component of ash calcium powder is calcium oxide, calcium hydroxide and a small amount of calcium carbonate.Wherein calcium oxide and calcium hydroxide very easily absorb carbon dioxide in air in the water system environment, and reaction generates calcium carbonate.So grey calcium powder building coating can produce slow thickening and deposited phenomenon in storage process, thereby influenced the quality of coating.In order to improve the package stability of sierozem powder coating material, should carry out pre-treatment to grey calcium powder.Method is to handle grey calcium powder with the electrolyte solution that can be hydrolyzed into positive colloid.Its mechanism: on the one hand, negatively charged ion and grey calcium powder water generation reaction insoluble substance in this class electrolyte solution; On the other hand, potential ion in the colloid adsorption layer that is hydrolyzed into and gegenion can both aquations, thereby around micelle, form hydration layer, stoped the coalescent of compounds such as calcium hydroxide, calcium carbonate, simultaneously to a certain extent, formed the dynamic stability of whole system (grey calcium powder and electrolyte solution).Thereby thickening and the deposited phenomenon of sierozem powder coating material have been stoped.So far using the more successful coating of grey calcium powder is to be the coating system of base-material with the polyvinyl formal.But according to present technical requirements, there are two each and every one problems.One is to use the harmful substance contents of methanal paint to be difficult to satisfy environmental protection requirement; The 2nd, the abrasion resistance of filming generally can only remain on 70～90 times, is difficult to satisfy the requirement of GB/T9756-2001 (synthetic resin emulsion interior wall coating).
Summary of the invention
Technical problem to be solved by this invention is at the deficiency in the background technology, and a kind of calcium shellac varnish stablizer preparation method is provided.
In order to solve the problems of the technologies described above by the following technical solutions: a kind of calcium shellac varnish stablizer, be prepared from by weight by following component: it is standby that 19 parts of water, 10 parts of polyethyleneglycol methoxy ether acrylate, 30 parts of vinylformic acid are made into monomer solution, and it is standby that 25 parts of water and 0.5 ~ 2.5 part of ammonium persulphate are made into initiator solution; 1.2 parts of methallylsulfonic acid sodium and 18.5 parts of water are added in the container, temperature is risen to 75～80 ℃, begin to drip monomer solution and initiator solution, monomer solution dropwises at 3h, initiator solution dropwises at 4h, dropwise and be warmed up to 87 ℃ of continuation reaction 2h, be cooled to the aqueous sodium hydroxide solution of adding below 40 ℃ then and regulate pH to 7～8.
The concentration of described aqueous sodium hydroxide solution is 30%.
It is standby that 19 parts of water, 10 parts of polyoxyethylene glycol 1200 single methoxy ether acrylate, 30 parts of vinylformic acid are made into monomer solution.
Described polyoxyethylene glycol 1200 single methoxy ether acrylate are prepared from by weight by following component: 120 parts in polyoxyethylene glycol 1200 single methoxy ethers, 0.28 part of Resorcinol, 7.8 parts in vinylformic acid, 1.07 parts of the vitriol oils, 130 ℃ of reaction 8h obtain through ether sedimentation, drying.
Described polyethyleneglycol methoxy ether acrylate can use polyethyleneglycol methoxy ether metacrylic acid ester, allyl polyethenoxy ether or methacrylic Soxylat A 25-7 to replace.
Methallylsulfonic acid sodium can use sodium allyl sulfonate, 2-acrylamido-2-methyl propane sulfonic acid to replace.
Vinylformic acid can use methacrylic acid, methylene-succinic acid, maleic anhydride tetrahydrophthalic anhydride to replace.
Stablizer of the present invention is effective, and consumption is few, and prepared calcium shellac varnish performance is good, and cost is low.
Contain carboxyl and sodium sulfonate anionic group in the stablizer, the long side chain of polyethers is sterically hindered big.Calcium ion in the coating system is had high efficiency chelating ability, stoped organic base-material breakdown of emulsion in the calcium shellac varnish.Colloidal particle to lime forms electrostatic repulsion, sterically hindered and multiple actions such as ion shielding and colloid protection, makes the lime colloidal particle be difficult to the collision cohesion in pedesis, makes coating possess stable storage requirement.
Embodiment
Embodiment 1: a kind of calcium shellac varnish, and by pigment, the filler of following weight part
,Auxiliary agent, base-material and dispersion medium are formed: 25～35 parts of grey calcium powders, 5～10 parts of titanium whites, 10～15 parts of coarse whitings, 5～10 parts of fine particle calcium carbonates, 2～5 parts of sodium bentonites, 0.3 part of defoamer, 0.4 part of dispersion agent, 0.2 part of wetting agent, 0.1 part of flow agent, 0.1 part of film coalescence aid, 0.15～0.35 part of thickening material, 0.2～0.6 part of stablizer, 6～12 parts of emulsions, 1 ~ 47 part of deionized water.
Preparation technology is as follows: the pre-dispersed stage in proportion with grey calcium powder, titanium white, coarse whiting, fine particle calcium carbonate, sodium bentonite and dispersion agent, wetting agent, defoamer, deionized water dispersing and mixing; Then with mixture process sand milling; Add stablizer, defoamer, film coalescence aid and flow agent, thickening material in proportion at scatter stage, emulsion mixes and gets final product.Wherein the pre-dispersed stage is used 0.2 part of defoamer, and scatter stage uses 0.1 part defoamer.
A kind of calcium shellac varnish stablizer, be prepared from by weight by following component: it is standby that 19 parts of water, 10 parts of polyethyleneglycol methoxy ether acrylate, 30 parts of vinylformic acid are made into monomer solution, and it is standby that 25 parts of water and 0.5 ~ 2.5 part of ammonium persulphate are made into initiator solution; 1.2 parts of methallylsulfonic acid sodium and 18.5 parts of water are added in the container, temperature is risen to 75～80 ℃, begin to drip monomer solution and initiator solution, monomer solution dropwises at 3h, initiator solution dropwises at 4h, dropwise and be warmed up to 87 ℃ of continuation reaction 2h, be cooled to the aqueous sodium hydroxide solution of adding below 40 ℃ then and regulate pH to 7～8.
Wherein, in the stablizer building-up process, vinylformic acid can use methacrylic acid, methylene-succinic acid, maleic anhydride tetrahydrophthalic anhydride to replace.
Methallylsulfonic acid sodium can use sodium allyl sulfonate, 2-acrylamido-2-methyl propane sulfonic acid to replace.
Polyethyleneglycol methoxy ether acrylate can use the alkene methacrylic Soxylat A 25-7 of the allyl polyethenoxy ether of APEG750, APEG1200, APEG2000 different molecular weight and TPEG750, TPEG1000, TPEG1200, TPEG2400 different molecular weight to replace.
APEG750, APEG1200, APEG2000, TPEG750, TPEG1000, TPEG1200, TPEG2400 are the commercially available prod.
Stablizer not only can be applied in sierozem powder coating material but also can be applied in the porcelain-imitated coating of the grey calcium composition of interpolation, toughened paint, the paste putty.
Embodiment 2: a kind of calcium shellac varnish stablizer, be prepared from by weight by following component: it is standby that 19 parts of water, 10 parts of polyoxyethylene glycol 1200 single methoxy ether acrylate, 30 parts of vinylformic acid are made into monomer solution, and it is standby that 25 parts of water and 0.5 ~ 2.5 part of ammonium persulphate are made into initiator solution; 1.2 parts of methallylsulfonic acid sodium and 18.5 parts of water are added in the container, temperature is risen to 75～80 ℃, begin to drip monomer solution and initiator solution, monomer solution dropwises at 3h, initiator solution dropwises at 4h, dropwise and be warmed up to 87 ℃ of continuation reaction 2h, be cooled to 30% aqueous sodium hydroxide solution of adding below 40 ℃ then and regulate pH to 7～8.
Polyoxyethylene glycol 1200 single methoxy ether acrylate are prepared from by weight by following component: 120 parts in polyoxyethylene glycol 1200 single methoxy ethers, and 0.28 part of Resorcinol, 7.8 parts in vinylformic acid, 1.07 parts of the vitriol oils, 130 ℃ of reaction 8h obtain through ether sedimentation, drying.
Polyoxyethylene glycol 1200 single methoxy ethers (MPEG1200) can use different molecular weight Soxylat A 25-7 list methoxy ethers such as MPEG600, MPEG750, MPEG1200, MPEG2000 to replace.
The component that calcium shellac varnish stablizer among embodiment 3 ~ embodiment 7 synthesizes is as shown in table 1.Other steps are with embodiment 2.
Table 1.
Utilize the stablizer among embodiment 3 ~ embodiment 7 to prepare the calcium shellac varnish respectively, the sealing of calcium shellac varnish is positioned over 40 ℃, observe them after 90 days and open a jar effect, do the abrasion resistance test by the GB9266 sample preparation.The results are shown in Table 2(annotates: used emulsion is the VAE emulsion, and consumption is 8wt%).
Table 2
Claims (1)
1. calcium shellac varnish stablizer, it is characterized in that being prepared from by weight by following component: it is standby that 19 parts of water, 10 parts of polyoxyethylene glycol 1200 single methoxy ether acrylate, 30 parts of vinylformic acid are made into monomer solution, wherein polyoxyethylene glycol 1200 single methoxy ether acrylate are prepared from by weight by following component: polyoxyethylene glycol 1,200 120 parts in single methoxy ethers, 0.28 part of Resorcinol, 7.8 parts in vinylformic acid, 1.07 parts of the vitriol oils, 130 ℃ of reaction 8h obtain through ether sedimentation, drying; It is standby that 25 parts of water and 0.5 ~ 2.5 part of ammonium persulphate are made into initiator solution; 1.2 parts of methallylsulfonic acid sodium and 18.5 parts of water are added in the container, temperature is risen to 75～80 ℃, begin to drip monomer solution and initiator solution, monomer solution dropwises at 3h, initiator solution dropwises at 4h, dropwise and be warmed up to 87 ℃ of continuation reaction 2h, being cooled to the concentration of adding below 40 ℃ then is that 30% aqueous sodium hydroxide solution is regulated pH to 7～8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104205558A CN102558935B (en) | 2011-12-15 | 2011-12-15 | Stabilizing agent for lime colloid paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104205558A CN102558935B (en) | 2011-12-15 | 2011-12-15 | Stabilizing agent for lime colloid paint |
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| CN102558935A CN102558935A (en) | 2012-07-11 |
| CN102558935B true CN102558935B (en) | 2013-10-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109776722A (en) * | 2019-02-11 | 2019-05-21 | 山东理工大学 | Ternary graft copolymer and its preparation method and application |
| CN110343219A (en) * | 2019-07-23 | 2019-10-18 | 洛阳理工学院 | A kind of sierozem power interior wall coating stabilizer and its room temperature preparation process |
| CN111116842B (en) * | 2020-01-02 | 2021-05-11 | 传美讯电子科技（珠海）有限公司 | Dispersing agent, preparation method and application |
| CN114085333A (en) * | 2021-10-29 | 2022-02-25 | 张家港市德宝化工有限公司 | Alkali-resistant phosphorus-free chelating agent for pretreatment of cotton knitted fabric and preparation method thereof |
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| CN101244907A (en) * | 2007-02-13 | 2008-08-20 | 上海申立建材有限公司 | Polycarboxylic acids series concrete high efficiency water reducing agent and synthesizing process |
| CN101284890A (en) * | 2008-05-20 | 2008-10-15 | 武汉理工大学 | High molecular compound, method for preparing same and use |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN101906193A (en) * | 2010-08-06 | 2010-12-08 | 天津市飞龙砼外加剂有限公司 | Method for synthesizing polycarboxylic acid water reducing agent |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000290056A (en) * | 1999-02-04 | 2000-10-17 | Nippon Shokubai Co Ltd | Hydraulic composition |
| US6869998B2 (en) * | 2003-06-23 | 2005-03-22 | Geo Specialty Chemicals, Inc. | Concrete or cement dispersant and method of use |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244907A (en) * | 2007-02-13 | 2008-08-20 | 上海申立建材有限公司 | Polycarboxylic acids series concrete high efficiency water reducing agent and synthesizing process |
| CN101284890A (en) * | 2008-05-20 | 2008-10-15 | 武汉理工大学 | High molecular compound, method for preparing same and use |
| CN101538134A (en) * | 2009-04-14 | 2009-09-23 | 大连市建筑科学研究设计院股份有限公司 | Polyether class polycarboxylic acid high-efficiency water reducing agent and preparation method thereof |
| CN101906193A (en) * | 2010-08-06 | 2010-12-08 | 天津市飞龙砼外加剂有限公司 | Method for synthesizing polycarboxylic acid water reducing agent |
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| JP特开2000-290056A 2000.10.17 |
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