CN108424487A - A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof - Google Patents

A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof Download PDF

Info

Publication number
CN108424487A
CN108424487A CN201810161434.8A CN201810161434A CN108424487A CN 108424487 A CN108424487 A CN 108424487A CN 201810161434 A CN201810161434 A CN 201810161434A CN 108424487 A CN108424487 A CN 108424487A
Authority
CN
China
Prior art keywords
emulsion
water
silicon
organic
desulfurated plaster
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810161434.8A
Other languages
Chinese (zh)
Other versions
CN108424487B (en
Inventor
吴其胜
马红恩
李娟�
张长森
诸华军
黎水平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yancheng Pufeitexin Mstar Technology Ltd
Yangcheng Institute of Technology
Yancheng Institute of Technology
Original Assignee
Yancheng Pufeitexin Mstar Technology Ltd
Yangcheng Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yancheng Pufeitexin Mstar Technology Ltd, Yangcheng Institute of Technology filed Critical Yancheng Pufeitexin Mstar Technology Ltd
Priority to CN201810161434.8A priority Critical patent/CN108424487B/en
Publication of CN108424487A publication Critical patent/CN108424487A/en
Application granted granted Critical
Publication of CN108424487B publication Critical patent/CN108424487B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/26Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2688Copolymers containing at least three different monomers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • C08F2/22Emulsion polymerisation
    • C08F2/24Emulsion polymerisation with the aid of emulsifying agents
    • C08F2/30Emulsion polymerisation with the aid of emulsifying agents non-ionic
    • 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
    • C08F212/00Copolymers 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
    • C08F212/02Monomers containing only one unsaturated aliphatic radical
    • C08F212/04Monomers containing only one unsaturated aliphatic radical containing one ring
    • C08F212/06Hydrocarbons
    • C08F212/08Styrene
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60Agents for protection against chemical, physical or biological attack
    • C04B2103/65Waterproofers or -repellents
    • 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
    • C08F220/1804C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate

Abstract

The invention discloses a kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster, by 20 25 parts of styrene, 25 30 parts of isobutyl acrylate, 45 parts of function monomer, 35 parts of emulsifier, 68 parts of organosilicon, 46 parts of Ludox, 40 50 parts of deionized water, 0.4 0.7 parts of potassium peroxydisulfate, 0.2 0.5 parts of compositions of 0.4 0.7 parts of sodium bicarbonate and polyvinyl alcohol, with good dispersion, solid content is high, stability is high, good weatherability and the characteristics of the intensity of desulfurated plaster product can be improved under certain condition, simultaneously, the invention also discloses the preparation methods of the organic-silicon-modified emulsion water-proof agent of desulfurated plaster.

Description

A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof
Technical field
The present invention relates to chemical industry and field of material technology, and in particular to a kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster And preparation method thereof.
Background technology
Desulfurated plaster belongs to air-setting material, is suitble to do materials for wall, extensive, the material energy consumption with raw material sources Low, the advantages that processing performance is good.But desulfurated plaster product there are one poor water resistance deadly defect, after absorbing water intensity damage It loses up to 75%, and buckling deformation easily occurs, application is very restricted, thus water-resistant type desulfurated plaster is ground Study carefully always domestic and international quite valued project.To solve strength reduction after desulfurated plaster makes moist, the water resistances such as easy buckling deformation The problem of difference, various countries take various approach and measure carries out the research of desulfurated plaster water proofing property, but totally can be summarized as three A aspect:On the one hand it is in the coating of desulfurated plaster surface or brushing waterproof material;On the other hand it is that mill is added in desulfurated plaster Thin inorganic material improves the water resistance of desulfurated plaster;The third aspect is the admixture emulsion type waterproofing agent in desulfurated plaster, is improved The water resistance of desulfurated plaster.
Publication number:The Chinese invention patent application (publication date on February 05th, 2014) of CN103553415A discloses stone Cream product cationic emulsified bitumen waterproofing agent, this method are coated surface, are carried out at waterproof to plastering by way of dipping Reason, but this method, there is no the water-fast sex chromosome mosaicism for fundamentally solving gypsum, waterproof effect does not have permanence;It is open Number:The Chinese invention patent application (publication date on 08 14th, 2013) of CN103242018A discloses a kind of desulfurated plaster block Block waterproofing agent, this method make it become hydrophobic by water-wetted surface by stearic acid, polyvinyl alcohol, cement, boric acid salt water-repellent Surface, the features such as to prevent the invasion of moisture from reaching waterproof;Publication number:The Chinese invention patent application of CN102180647A (publication date on 09 14th, 2011) discloses a kind of desulfurized building gypsum water-proof building block, and this method uses desulphurization building gypsum 30%-94%, calcium silicate slag 0%-50%, low-alkalinity sulphoaluminate cement 6%-20%.For changing for desulphurization building gypsum building block Into greatly improving the water resistance of gypsum block, although such method has certain waterproof effect, but very limits change The purity for having become desulfurated plaster is unfavorable for the plasticity of desulfurated plaster product;The Chinese invention of publication number CN106186801A is special Profit application (publication date on December 07th, 2016) discloses a kind of preparation method of composite modified waterproofing gypsum agent, and this method is adopted It is put into methane-siliconic acid sodium alkoxide, deionized water, polyoxylethylene abietate, glycerine, polyvinyl alcohol and potassium peroxydisulfate and is protected by nitrogen It is stirred to react in the reaction kettle of shield, with gas in silicon fluoride replacement reaction kettle, to prepare waterproofing gypsum agent, such method pair is set Standby condition requires height, takes longer.Currently, domestic emulsion type desulfurated plaster waterproofing agent be mainly paraffin wax emulsions, rosin milk and Asphalt modification lotion, still, there are two disadvantages for such waterproofing agent:First, additive amount is more, additive amount is generally in gypsum dosage 10% or so;Second is that poor storage stability, the general Storage period no more than 3 moon.
Invention content
To solve above-mentioned technological deficiency existing in the prior art, the present invention provides a kind of high conversion rate, synthesis technologies Convenient, organic-silicon-modified emulsion water-proof agent of economic and environment-friendly desulfurated plaster and preparation method thereof has performance stabilization, additive amount The features such as less and preparation process is simple.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster, is made of following parts by weight of component:
The styrene is washed away to be pre-processed using 5% sodium hydroxide solution as a preferred technical solution, The styrene of polymerization inhibitor.
The emulsifier is nonionic emulsifier nonylphenol polyoxyethylene ether and anion breast as a preferred technical solution, Agent lauryl sodium sulfate compound emulsifying agent, the nonionic emulsifier nonylphenol polyoxyethylene ether, anion emulsifier ten The ratio of sodium dialkyl sulfate compound emulsifying agent is 4:1-2:1.
The function monomer is methyl methacrylate, monobutyl itaconate, N- methylols as a preferred technical solution, One or more of acrylamide, glycidyl methacrylate.
The organosilicon is one in KH-151, KH-550, MPTS, containing hydrogen silicone oil 203 as a preferred technical solution, Kind is several.
As a preferred technical solution, the Ludox be the colloidal particle of nano level amorphous silica in water or The pH value of dispersion in organic solvent, the Ludox is 2.0-7.0, average grain diameter 10-20nm.
The preparation method of the organic-silicon-modified emulsion water-proof agent of the desulfurated plaster, it is characterised in that:
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, institute The weight ratio for stating deionized water one, deionized water two and deionized water three is 1:2:1, then by deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer of amount part acquirement carry out high intensity and are stirred, and mix Time is 20min, and it is for use that pre-emulsion a is prepared;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, allotment obtains initiator solution b and waits for With;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature Degree is increased to 60-70 DEG C, and it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, by the step B points of initiator solution in rapid two is initiator solution b1 and initiator solution b2, takes the pre-emulsion a1 and the initiation Agent solution b1 is instilled in the solution c in the step 3, and is stirred, mixing speed 350-400r/min, adjusts temperature It is increased to 80-85 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step Initiator solution b2 in rapid four is added dropwise into the seed emulsion d in the step 4 simultaneously, and is stirred, mixing speed For 280-340r/min, while insulation reaction 1-2h, the Ludox is added later and stirs 30min together, adjusting temperature reduces To 40 DEG C hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 7-8 and is filtered, and the desulfurization stone is made The organic-silicon-modified emulsion water-proof agent of cream.
The present invention advantageous effects be:
(1) by the compound of nonionic emulsifier and anion emulsifier, the stability of modified emulsion is substantially increased, 1h is not demulsified under the speed of 400r/min;
(2) function monomer is added, makes to introduce functional form group in macromolecular chain, to make the weatherability of modified emulsion It is greatly improved with freeze-thaw resistance;
(3) be added organic silicon monomer, improve the degree of cross linking of latex film, greatly improve modified emulsion water resistance, Dispersibility and adhesive force;
(4) one layer of hydrophobic membrane is formed on desulfurated plaster crystal, will not destroy the crystalline structure of desulfurated plaster;
(5) under 0.1% volume, the coefficient of softing of desulfurated plaster is enabled to can reach 0.7 or more, very big limit The application range for improving desulfurated plaster.
Specific implementation mode
Below by specific embodiment, the invention will be further described, and following embodiment is descriptive, is not limit Qualitatively, protection scope of the present invention cannot be limited with this.
It should be noted that styrene in following embodiment be pre-processed using 5% sodium hydroxide solution and Wash away the styrene of polymerization inhibitor;Emulsifier is nonionic emulsifier nonylphenol polyoxyethylene ether and anion emulsifier dodecane Base sodium sulphate compound emulsifying agent, and nonionic emulsifier nonylphenol polyoxyethylene ether, anion emulsifier lauryl sodium sulfate The ratio of compound emulsifying agent is 4:1-2:1;Function monomer is methyl methacrylate, monobutyl itaconate, N- methylol propylene One or more of amide, glycidyl methacrylate;Organosilicon is KH-151, KH-550, MPTS, containing hydrogen silicone oil One or more of 203;Ludox is the colloidal particle of nano level amorphous silica in water or organic solvent The pH value of dispersion, the Ludox is 2.0-7.0, average grain diameter 10-20nm.
Embodiment 1
A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster, is made of following parts by weight of component:
Preparation method
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, institute The weight ratio for stating deionized water one, deionized water two and deionized water three is 1:2:1, then by deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer of amount part acquirement carry out high intensity and are stirred, and mix Time is 20min, and it is for use that pre-emulsion a is prepared;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, allotment obtains initiator solution b and waits for With;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature Degree is increased to 60 DEG C, and it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, by the step B points of initiator solution in rapid two is initiator solution b1 and initiator solution b2, takes the pre-emulsion a1 and the initiation Agent solution b1 is instilled in the solution c in the step 3, and is stirred, mixing speed 400r/min, is adjusted temperature and is increased To 80 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step Initiator solution b2 in rapid four is added dropwise into the seed emulsion d in the step 4 simultaneously, and is stirred, mixing speed For 340r/min, while insulation reaction 1h, the Ludox is added later and stirs 30min together, adjusts temperature and is reduced to 40 DEG C Hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 8 and is filtered, and the desulfurated plaster is made Organic-silicon-modified emulsion water-proof agent.
Embodiment 2
A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof, each component weight proportion is as follows:
Preparation method
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, institute The weight ratio for stating deionized water one, deionized water two and deionized water three is 1:2:1, then by deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer of amount part acquirement carry out high intensity and are stirred, and mix Time is 20min, and it is for use that pre-emulsion a is prepared;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, allotment obtains initiator solution b and waits for With;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature Degree is increased to 70 DEG C, and it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, by the step B points of initiator solution in rapid two is initiator solution b1 and initiator solution b2, takes the pre-emulsion a1 and the initiation Agent solution b1 is instilled in the solution c in the step 3, and is stirred, mixing speed 350r/min, is adjusted temperature and is increased To 85 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step Initiator solution b2 in rapid four is added dropwise into the seed emulsion d in the step 4 simultaneously, and is stirred, mixing speed For 280r/min, while insulation reaction 2h, the Ludox is added later and stirs 30min together, adjusts temperature and is reduced to 40 DEG C Hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 7 and is filtered, and the desulfurated plaster is made Organic-silicon-modified emulsion water-proof agent.
Embodiment 3
A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof, each component weight proportion is as follows:
Preparation method
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, institute The weight ratio for stating deionized water one, deionized water two and deionized water three is 1:2:1, then by deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer of amount part acquirement carry out high intensity and are stirred, and mix Time is 20min, and it is for use that pre-emulsion a is prepared;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, allotment obtains initiator solution b and waits for With;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature Degree is increased to 60 DEG C, and it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, by the step B points of initiator solution in rapid two is initiator solution b1 and initiator solution b2, takes the pre-emulsion a1 and the initiation Agent solution b1 is instilled in the solution c in the step 3, and is stirred, mixing speed 350r/min, is adjusted temperature and is increased To 80 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step Initiator solution b2 in rapid four is added dropwise into the seed emulsion d in the step 4 simultaneously, and is stirred, mixing speed For 280r/min, while insulation reaction 1h, the Ludox is added later and stirs 30min together, adjusts temperature and is reduced to 40 DEG C Hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 7 and is filtered, and the desulfurated plaster is made Organic-silicon-modified emulsion water-proof agent.
Embodiment 4
A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof, each component weight proportion is as follows:
Preparation method
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, institute The weight ratio for stating deionized water one, deionized water two and deionized water three is 1:2:1, then by deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer of amount part acquirement carry out high intensity and are stirred, and mix Time is 20min, and it is for use that pre-emulsion a is prepared;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, allotment obtains initiator solution b and waits for With;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature Degree is increased to 70 DEG C, and it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, by the step B points of initiator solution in rapid two is initiator solution b1 and initiator solution b2, takes the pre-emulsion a1 and the initiation Agent solution b1 is instilled in the solution c in the step 3, and is stirred, mixing speed 400r/min, is adjusted temperature and is increased To 85 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step Initiator solution b2 in rapid four is added dropwise into the seed emulsion d in the step 4 simultaneously, and is stirred, mixing speed For 340r/min, while insulation reaction 2h, the Ludox is added later and stirs 30min together, adjusts temperature and is reduced to 40 DEG C Hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 8 and is filtered, and the desulfurated plaster is made Organic-silicon-modified emulsion water-proof agent.
According to the material mixture ratio in embodiment 1-4, each component, manufactured desulfurated plaster waterproofing agent, in NJ- are accurately measured 2min is stirred in 160A net slurry blenders, it is real according to GB/T 17669.4-1999 standards and GB/T 17669.3-1999 standards Proved recipe method tests the physical property and mechanical property of desulfurated plaster, and test result is shown in Table one, table two.
The properties of the one organic-silicon-modified emulsion water-proof agent of embodiment 1-4 desulfurated plasters of table are tested
Test (the volume that the two organic-silicon-modified emulsion water-proof agent of embodiment 1-4 desulfurated plasters of table is applied in desulfurated plaster For 0.1%)
Table two is being taken off the results show that compared with being not spiked with desulfurated plaster waterproofing agent using inventive desulfurization waterproofing gypsum agent Sulphur gypsum aspect of performance has significant improvement effect.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (7)

1. a kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster, it is characterised in that:It is made of following parts by weight of component:
2. the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1, it is characterised in that:The styrene is The styrene of polymerization inhibitor is pre-processed and is washed away using 5% sodium hydroxide solution.
3. the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1 or 2, it is characterised in that:The emulsification Agent be nonionic emulsifier nonylphenol polyoxyethylene ether and anion emulsifier lauryl sodium sulfate compound emulsifying agent, it is described non- Ionic emulsifying agent nonylphenol polyoxyethylene ether, the ratio of anion emulsifier lauryl sodium sulfate compound emulsifying agent are 4:1-2: 1。
4. the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1 or 2, it is characterised in that:The function Monomer is one in methyl methacrylate, monobutyl itaconate, N hydroxymethyl acrylamide, glycidyl methacrylate Kind is several.
5. the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1 or 2, it is characterised in that:It is described organic Silicon is one or more of KH-151, KH-550, MPTS, containing hydrogen silicone oil 203.
6. the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1 or 2, it is characterised in that:The silicon is molten Glue is dispersion of the colloidal particle of nano level amorphous silica in water or organic solvent, the PH of the Ludox Value is 2.0-7.0, average grain diameter 10-20nm.
7. the preparation method of the organic-silicon-modified emulsion water-proof agent of desulfurated plaster according to claim 1, it is characterised in that:
Step 1:Ionized water is removed by weight, and is divided into deionized water one, deionized water two and deionized water three, it is described to go The weight ratio of ionized water one, deionized water two and deionized water three is 1:2:1, then take deionized water one and by weight The compound emulsifying agent, styrene, isobutyl acrylate, the function monomer obtained carries out high intensity and is stirred, and incorporation time is It is for use that pre-emulsion a is prepared in 20min;
Step 2:The ammonium persulfate is taken to be dissolved in deionized water two by weight, it is for use that allotment obtains initiator solution b;
Step 3:It takes sodium bicarbonate and deionized water three to be added in reaction kettle by weight, and stirring and dissolving, adjusts temperature liter Up to 60-70 DEG C, it is for use that solution c is prepared in reaction time 30min;
Step 4:It is pre-emulsion a1 and pre-emulsion a2 by a points of pre-emulsion in the step 1, it will be in the step 2 Initiator solution b points be initiator solution b1 and initiator solution b2, take the pre-emulsion a1 and the initiator solution B1 is instilled in the solution c in the step 3, and is stirred, mixing speed 350-400r/min, is adjusted temperature and is increased to 80-85 DEG C, it is for use that seed emulsion d is prepared;
Step 5:Take by weight in the pre-emulsion a2 that organic silicon monomer is mixed into the step 4, then with the step 4 In initiator solution b2 be added dropwise simultaneously into the seed emulsion d in the step 4, and be stirred, mixing speed 280- 340r/min, while insulation reaction 1-2h are added the Ludox and stir 30min together later, adjust temperature and are reduced to 40 DEG C Hereinafter, obtained solution e is for use;
Step 6:The pH value of the solution e in the step 5 is reconciled with ammonium hydroxide to 7-8 and is filtered, and the desulfurated plaster, which is made, to be had Machine Si modification emulsion water-proof agent.
CN201810161434.8A 2018-02-27 2018-02-27 Desulfurized gypsum organic silicon modified emulsion waterproof agent and preparation method thereof Active CN108424487B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810161434.8A CN108424487B (en) 2018-02-27 2018-02-27 Desulfurized gypsum organic silicon modified emulsion waterproof agent and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810161434.8A CN108424487B (en) 2018-02-27 2018-02-27 Desulfurized gypsum organic silicon modified emulsion waterproof agent and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108424487A true CN108424487A (en) 2018-08-21
CN108424487B CN108424487B (en) 2021-01-08

Family

ID=63157180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810161434.8A Active CN108424487B (en) 2018-02-27 2018-02-27 Desulfurized gypsum organic silicon modified emulsion waterproof agent and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108424487B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109896819A (en) * 2019-04-22 2019-06-18 盐城工学院 A kind of composite modified desulfurized plaster board and preparation method thereof
CN110510914A (en) * 2019-09-03 2019-11-29 安徽建筑大学 A kind of multiple emulsion waterproofing agent and preparation method thereof improving desulfurized gypsum water resistance
CN110627973A (en) * 2019-08-15 2019-12-31 江苏博拓新型建筑材料有限公司 Modified organosilicon waterproofing agent and preparation method and application thereof
CN111087884A (en) * 2019-12-21 2020-05-01 张得华 Preparation method of organosilicon gypsum waterproof agent
CN111395640A (en) * 2019-10-08 2020-07-10 绿城装饰工程集团有限公司 Gypsum board cracking-prevention cutting and mounting method
CN111410497A (en) * 2019-09-27 2020-07-14 绿城装饰工程集团有限公司 Waterproof gypsum-based caulking paste

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492085A (en) * 2011-12-06 2012-06-13 扬州大学 Organosilicon-modified styrene-acrylic architectural waterproof latex and preparation method thereof
CN104829161A (en) * 2015-04-02 2015-08-12 安徽建筑大学 Novel waterproof agent for building gypsum, and preparation method thereof
CN105462389A (en) * 2015-11-24 2016-04-06 武汉武达博硕园科技有限公司 Preparation method of organic-inorganic composite waterproof agent for exterior-wall gypsum building materials
CN106366228A (en) * 2016-08-31 2017-02-01 江苏李文甲化工有限公司 Polyacrylic emulsion transparent waterproof glue and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232986A (en) * 1983-06-10 1984-12-27 Haiuooru Kk Waterproofing enhancement for construction board
JPH05836A (en) * 1991-06-20 1993-01-08 Japan Synthetic Rubber Co Ltd Silicone modified polymer powder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492085A (en) * 2011-12-06 2012-06-13 扬州大学 Organosilicon-modified styrene-acrylic architectural waterproof latex and preparation method thereof
CN104829161A (en) * 2015-04-02 2015-08-12 安徽建筑大学 Novel waterproof agent for building gypsum, and preparation method thereof
CN105462389A (en) * 2015-11-24 2016-04-06 武汉武达博硕园科技有限公司 Preparation method of organic-inorganic composite waterproof agent for exterior-wall gypsum building materials
CN106366228A (en) * 2016-08-31 2017-02-01 江苏李文甲化工有限公司 Polyacrylic emulsion transparent waterproof glue and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
莫甲新 等: "硅丙乳液对石膏耐水性和强度的影响研究", 《胶体与聚合物》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109896819A (en) * 2019-04-22 2019-06-18 盐城工学院 A kind of composite modified desulfurized plaster board and preparation method thereof
CN110627973A (en) * 2019-08-15 2019-12-31 江苏博拓新型建筑材料有限公司 Modified organosilicon waterproofing agent and preparation method and application thereof
CN110510914A (en) * 2019-09-03 2019-11-29 安徽建筑大学 A kind of multiple emulsion waterproofing agent and preparation method thereof improving desulfurized gypsum water resistance
CN111410497A (en) * 2019-09-27 2020-07-14 绿城装饰工程集团有限公司 Waterproof gypsum-based caulking paste
CN111395640A (en) * 2019-10-08 2020-07-10 绿城装饰工程集团有限公司 Gypsum board cracking-prevention cutting and mounting method
CN111087884A (en) * 2019-12-21 2020-05-01 张得华 Preparation method of organosilicon gypsum waterproof agent

Also Published As

Publication number Publication date
CN108424487B (en) 2021-01-08

Similar Documents

Publication Publication Date Title
CN108424487A (en) A kind of organic-silicon-modified emulsion water-proof agent of desulfurated plaster and preparation method thereof
US7956113B2 (en) Hydrophobicizing additives
EP1861462B1 (en) Dispersion composition for highly flexible, waterproof, hydraulically binding tile adhesive
EP1763553B1 (en) Use of vinyl chloride-ethylene copolymers for hydrophobing construction substances
JP4595507B2 (en) POLYMER CEMENT COMPOSITION FOR WATERPROOFING, CURED PRODUCT THEREOF, AND METHOD FOR PRODUCING THE SAME
EP1940887B1 (en) Silane-modified dispersion powder
DE102007038333A1 (en) Silane-modified additives and silane-modified polymer compositions
US20130131220A1 (en) Emulsion or redispersible polymer powder of a polymer comprising a biomonomer, a process to prepare them, and the use thereof in building material compositions
CN103333559B (en) Water-based transparent concrete water-proof carbonization-preventing coating and preparation method thereof
CN108659177A (en) A kind of overlength sustained release slump retaining agent of high-adaptability and its normal low temperature preparation method
JP2006347797A (en) Mortar, structure covered with the same and working method of the same
CN101445574B (en) Core-shell polymer emulsion for manufacturing re-dispersible latex powder, and preparation method thereof
CN109111547B (en) Silicone-acrylic modified emulsion waterproof agent and preparation method and application thereof
CN109135666A (en) A kind of aqueous high solids content waterproof sealing cream and preparation method thereof
CN106673567B (en) A kind of high performance concrete
CN107540782B (en) Special waterproof emulsion for emulsified asphalt and preparation process thereof
WO2012019908A1 (en) Use of polymer powders redispersible in water for improving the storage stability of cement or dry mortar
CN112143149A (en) Novel acrylic latex powder and preparation method thereof
EP2812291A1 (en) Aqueous dispersion
CN103724510B (en) White Board primary coat self-crosslinking Nano-meter SiO_2 2the preparation method of styrene-acrylic composite emulsion
JP5031222B2 (en) Polymer cement compositions, these mortars, mortar coated structures
US20150307399A1 (en) Additive for hydraulically setting mixtures
JP4609186B2 (en) Polymer cement composition
EP3707109B1 (en) Hydrophobic polymer powder composition that can be redispersed in water
WO2018033219A1 (en) Porous molded body in the form of a insulating plaster layer or an insulating panel

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant