CN103553426A - Preparation method of polymer and cement composite waterproof coating - Google Patents
Preparation method of polymer and cement composite waterproof coating Download PDFInfo
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- CN103553426A CN103553426A CN201310460544.1A CN201310460544A CN103553426A CN 103553426 A CN103553426 A CN 103553426A CN 201310460544 A CN201310460544 A CN 201310460544A CN 103553426 A CN103553426 A CN 103553426A
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Abstract
The invention relates to a preparation method of a polymer and cement composite waterproof coating, and the preparation method comprises the following steps: adding water, an emulsifier and a monomer to a reactor to prepare a pre-emulsion; performing heating treatment on the pre-emulsion until the temperature is risen to 70DEG C- 95DEG C, adding an initiator to obtain latex A; taking the initiator adding time as a time start point, and after 20-50min, again adding the monomer; after adding of the monomer is completed, heating up to 80-95 DEG C, continuing to react for 0.5 to 2h, then cooling to 30-50 DEG C to end the reaction to obtain styrene acrylic latex; under the uniform-speed stirring condition, adding a dispersing agent, a film-forming assistant and a defoaming agent into the styrene acrylic latex to prepare a liquid material; under the stirring condition, uniformly mixing cement and an inorganic filler to prepare a powder material; and mixing and stirring the liquid material and the powder material to obtain the polymer and cement composite waterproof coating. The preparation method has the advantages of simple operation and low cost, and the prepared polymer and cement composite waterproof coating has the characteristics of high tensile strength, good adaptability, no pollution to environment and the like.
Description
Technical field
The present invention relates to a kind of high performance polymer cement composite water-proof paint, relate in particular to a kind of preparation method of polymer cement composite waterproofing paint.
Background technology
Over the past two years, various places were all at developing green building materials, and to adapt to New Times engineering construction needs, Polyer modified cement base compound waterproof coating is arisen at the historic moment as a kind of waterproof material.Polyer modified cement base compound waterproof coating (hereinafter to be referred as composite water-proof paint) is flexible waterproof material, two-component-type, comprise liquid material and powder, that certain proportion liquid material and powder stirring is even, hydration reaction and water-based emulsion crosslinking curing through inorganic powder are composited, and are applicable to roofing, kitchen and toilet, vault, pond and other construction waterproofing engineering.The technology that its employing cement-based material and macromolecular material are compound, the flexible deficiency of cement-based material and high score have been made up in the defect of material water tolerance, loss of properties on aging, compare with traditional flexible waterproof material, there is the construction of moist basal plane, the feature such as pollution-free and harmless of can be used for.As time goes on, composite water-proof paint will be more widely used.
The liquid material of composite water-proof paint is generally water-and acrylate class or water-based polyurethane emulsion; most of organic volatile solvent is replaced to water; thereby reach, significantly reduce topsoil and reduce the object being detrimental to health, having guaranteed the various characteristic properties of original such material simultaneously; And powder is generally cement-based material, add appropriate extra material or stopping composition to form, compound with liquid material, can part and its solvent-water generation hydration reaction, part, as a kind of fine particle stopping composition, is filled among macromolecular material again simultaneously, so just has influence on the performance of original macromolecular material, particularly its tensile property, only makes discussion to its tensile property impact herein.Test shows, the mass ratio of liquid material and powder (hereinafter to be referred as powder/liquor ratio), curing temperature, curing age and dimensional effect are larger on its tensile property impact.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of polymer cement composite waterproofing paint.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of preparation method of polymer cement composite waterproofing paint, comprises the steps:
Water, emulsifying agent and monomer are added in reactor and be mixed with pre-emulsion, and wherein water, emulsifying agent, monomer are that 1:1:1～1:3:1 mixes according to mass ratio;
Described emulsion is carried out to heat treated until temperature rises to 70 ℃～95 ℃, then add initiator to obtain latex A, the initiator wherein adding accounts for 10%～20% of whole quality of the emulsion;
Take and add initiator as start time, drip monomer after 20～50min again, wherein monomer accounts for 5% of whole quality of the emulsion;
Monomer add complete after, be warming up to 80～95 ℃ and continue reaction 0.5～2h, be then cooled to 30～50 ℃, finish reaction and obtain styrene-acrylic latex;
Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add dispersion agent, film coalescence aid, defoamer, make liquid material, wherein styrene-acrylic latex, dispersion agent, film coalescence aid, defoamer are that 5:1:1:1～8:1:1:1 mixes according to mass ratio;
Under agitation condition, cement and mineral filler are evenly mixed, make powder, wherein cement, mineral filler are that 1:1～4:1 mixes according to mass ratio;
By liquid material and powder, according to mass ratio, be that 1:1～1:3 is mixed into polymer cement composite waterproofing paint.
On the basis of technique scheme, the present invention can also do following improvement.
Further, monomer of the present invention refers to low molecular compound undersaturated, ring-type or that contain two or more functional groups.
Further, described mineral filler is any one or the two or more mixing in water-ground limestone, talcum powder, silica powder, is any quality proportioning during two or more mixing.
Described water-ground limestone belongs to low-pole material, plays active function when the moulding of polymer cement composite coating, improves apparent row energy and the mobility of coating.
Described talcum powder, silica powder can improve apparent row energy and the mobility of coating equally, but have more advantage improving aspect the tensile strength of polymer cement composite coating, elongation at break.
Further, described cement, water-ground limestone, talcum powder, silica powder, film coalescence aid, dispersion agent defoamer are commercially available work.
Described film coalescence aid is the alcohol ester 12 that purity is greater than 99%.
Described dispersion agent comprises inorganic dispersant, organic dispersing agent, and wherein inorganic dispersant has silicates, water glass for example, alkali metal phosphate class, for example tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and trisodium phosphate; Organic dispersing agent has triethyl hexyl phosphoric acid, sodium lauryl sulphate, methyl amyl alcohol, derivatived cellulose, polyacrylamide, guar gum, fatty acid polyglycol ester.
Described defoamer organo-siloxane, polyethers, silicon and ether grafting, containing amine, imines and amides.
Above illustrative example is applicable the present invention all, but is not limited to the scope of application of the present invention.
The invention has the beneficial effects as follows: preparation method is simple to operate, with low cost, resulting polymers cementitious composite waterproof paint has the features such as tensile strength is high, strong adaptability, environmentally safe.Wherein the tensile strength of gained composite coating is 0.54～0.94MPa, and elongation at break is 480%～590%.
Accompanying drawing explanation
Fig. 1 is the preparation method's of a kind of polymer cement composite waterproofing paint of the present invention schema;
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of preparation method of polymer cement composite waterproofing paint, comprises the steps:
Water, emulsifying agent and monomer are added in reactor and be mixed with pre-emulsion, and wherein water, emulsifying agent, monomer are that 1:1:1～1:3:1 mixes according to mass ratio;
Described emulsion is carried out to heat treated until temperature rises to 70 ℃～95 ℃, then add initiator to obtain latex A, the initiator wherein adding accounts for 10%～20% of whole quality of the emulsion;
Take and add initiator as start time, drip monomer after 20～50min again, wherein monomer accounts for 5% of whole quality of the emulsion;
Monomer add complete after, be warming up to 80～95 ℃ and continue reaction 0.5～2h, be then cooled to 30～50 ℃, finish reaction and obtain styrene-acrylic latex;
Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add dispersion agent, film coalescence aid, defoamer, make liquid material, wherein styrene-acrylic latex, dispersion agent, film coalescence aid, defoamer are that 5:1:1:1～8:1:1:1 mixes according to mass ratio;
Under agitation condition, cement and mineral filler are evenly mixed, make powder, wherein cement, mineral filler are that 1:1～4:1 mixes according to mass ratio;
By liquid material and powder, according to mass ratio, be that 1:1～1:3 is mixed into polymer cement composite waterproofing paint.
Embodiment 1
10g water, 10g emulsifying agent and 10g monomer are added and in reactor, be mixed with pre-emulsion; Described emulsion is carried out to heat treated until temperature rises to 70 ℃, then add 3g initiator to obtain latex A in batches; Take and add initiator as start time, after 20min, drip again 1.65g monomer; Monomer add complete after, be warming up to 80 ℃ and continue reaction 0.5h, be then cooled to 30 ℃, finish reaction and obtain styrene-acrylic latex; Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add respectively 6.6g water glass, 6.6g alcohol ester 12,6.6g organo-siloxane, make liquid material; Under agitation condition, 15g cement and 15g mineral filler water-ground limestone are evenly mixed, make powder; 40g liquid material and 80g powder are mixed into polymer cement composite waterproofing paint, and wherein the tensile strength of gained composite coating is 0.94MPa, and elongation at break is 480%.
Embodiment 2
10g water, 20g emulsifying agent and 10g monomer are added and in reactor, be mixed with pre-emulsion; Described emulsion is carried out to heat treated until temperature rises to 80 ℃, then add 6g initiator to obtain latex A in batches; Take and add initiator as start time, after 30min, drip residue 2.3g monomer; Monomer add complete after, be warming up to 85 ℃ and continue reaction 1h, be then cooled to 40 ℃, finish reaction and obtain styrene-acrylic latex; Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add respectively 8.6g tripoly phosphate sodium STPP, 8.6g alcohol ester 12,8.6g polyethers, make liquid material; Under agitation condition, 30g cement and 15g mineral filler talcum powder are evenly mixed, make powder; 40g liquid material and 40g powder are mixed into polymer cement composite waterproofing paint, and wherein the tensile strength of gained composite coating is 0.71MPa, and elongation at break is 566%.
Embodiment 3
10g water, 30g emulsifying agent and 10g monomer are added and in reactor, be mixed with pre-emulsion; Described emulsion is carried out to heat treated until temperature rises to 95 ℃, then add 10g initiator to obtain latex A in batches; Take and add initiator as start time, after 50min, drip residue 3g monomer; Monomer add complete after, be warming up to 95 ℃ and continue reaction 2h, be then cooled to 50 ℃, finish reaction and obtain styrene-acrylic latex; Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add respectively 6.3g methyl amyl alcohol, 6.3g alcohol ester 12,6.3g silicon and ether grafting, make liquid material; Under agitation condition, 60g cement and 15g mineral filler silica powder are evenly mixed, make powder; 40g liquid material and 120g powder are mixed into polymer cement composite waterproofing paint, and wherein the tensile strength of gained composite coating is 0.54MPa, and elongation at break is 590%.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a preparation method for polymer cement composite waterproofing paint, is characterized in that, comprises the steps:
Water, emulsifying agent and monomer are added in reactor and be mixed with pre-emulsion, and wherein water, emulsifying agent, monomer are that 1:1:1～1:3:1 mixes according to mass ratio;
Described emulsion is carried out to heat treated until temperature rises to 70 ℃～95 ℃, then add initiator to obtain latex A, the initiator wherein adding accounts for 10%～20% of whole quality of the emulsion;
Take and add initiator as start time, drip monomer after 20～50min again, wherein monomer accounts for 5% of whole quality of the emulsion;
Monomer add complete after, be warming up to 80～95 ℃ and continue reaction 0.5～2h, be then cooled to 30～50 ℃, finish reaction and obtain styrene-acrylic latex;
Under agitation condition at the uniform velocity, in described styrene-acrylic latex, add dispersion agent, film coalescence aid, defoamer, make liquid material, wherein styrene-acrylic latex, dispersion agent, film coalescence aid, defoamer are that 5:1:1:1～8:1:1:1 mixes according to mass ratio;
Under agitation condition, cement and mineral filler are evenly mixed, make powder, wherein cement, mineral filler are that 1:1～4:1 mixes according to mass ratio;
By liquid material and powder, according to mass ratio, be that 1:1～1:3 is mixed into polymer cement composite waterproofing paint.
2. a kind of preparation method of polymer cement composite waterproofing paint according to claim 1, it is characterized in that, described mineral filler is any one or the two or more mixing in water-ground limestone, talcum powder, silica powder, is any quality proportioning during two or more mixing.
3. a kind of film coalescence aid according to claim 1, is characterized in that, described film coalescence aid is the alcohol ester 12 that purity is greater than 99%.
4. a kind of film coalescence aid according to claim 1, is characterized in that, described dispersion agent comprises inorganic dispersant, organic dispersing agent, wherein inorganic dispersant has silicates, water glass for example, alkali metal phosphate class, for example tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and trisodium phosphate; Organic dispersing agent comprises triethyl hexyl phosphoric acid, sodium lauryl sulphate, methyl amyl alcohol, derivatived cellulose, polyacrylamide, guar gum, fatty acid polyglycol ester.
5. a kind of film coalescence aid according to claim 1, is characterized in that, described defoamer comprises organic siloxane, polyethers, silicon and ether grafting, containing amine, imines and amides.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366990A (en) * | 2015-11-23 | 2016-03-02 | 安徽酉阳防水科技有限公司 | Polymer cement composite waterproof paint and preparation method thereof |
| CN106189580A (en) * | 2016-07-11 | 2016-12-07 | 湖南中汉高分子材料科技有限公司 | A kind of thermal-insulation energy-conservation water paint |
| CN106699066A (en) * | 2017-01-07 | 2017-05-24 | 成都市嘉洲新型防水材料有限公司 | Two-component polyacrylate waterproof coating and waterproof engineering construction method thereof |
| CN107793095A (en) * | 2017-09-30 | 2018-03-13 | 张建仁 | A kind of energy-saving environment-protecting type waterproof construction method |
| CN109554054A (en) * | 2018-12-07 | 2019-04-02 | 东联北方科技(北京)有限公司 | Polymer cement waterproof paint and preparation method thereof |
| CN116063889A (en) * | 2023-02-20 | 2023-05-05 | 承德天大钒业有限责任公司 | Water-based waterproof paint |
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| CN101967049A (en) * | 2010-04-02 | 2011-02-09 | 上海东方雨虹防水技术有限责任公司 | Bi-component waterproof paint for roads and bridges and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366990A (en) * | 2015-11-23 | 2016-03-02 | 安徽酉阳防水科技有限公司 | Polymer cement composite waterproof paint and preparation method thereof |
| CN106189580A (en) * | 2016-07-11 | 2016-12-07 | 湖南中汉高分子材料科技有限公司 | A kind of thermal-insulation energy-conservation water paint |
| CN106699066A (en) * | 2017-01-07 | 2017-05-24 | 成都市嘉洲新型防水材料有限公司 | Two-component polyacrylate waterproof coating and waterproof engineering construction method thereof |
| CN107793095A (en) * | 2017-09-30 | 2018-03-13 | 张建仁 | A kind of energy-saving environment-protecting type waterproof construction method |
| CN107793095B (en) * | 2017-09-30 | 2020-11-20 | 无锡华虹建设有限公司 | Energy-saving environment-friendly waterproof construction method |
| CN109554054A (en) * | 2018-12-07 | 2019-04-02 | 东联北方科技(北京)有限公司 | Polymer cement waterproof paint and preparation method thereof |
| CN116063889A (en) * | 2023-02-20 | 2023-05-05 | 承德天大钒业有限责任公司 | Water-based waterproof paint |
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Application publication date: 20140205 |