CN102911580B - Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof - Google Patents
Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof Download PDFInfo
- Publication number
- CN102911580B CN102911580B CN201210412736.0A CN201210412736A CN102911580B CN 102911580 B CN102911580 B CN 102911580B CN 201210412736 A CN201210412736 A CN 201210412736A CN 102911580 B CN102911580 B CN 102911580B
- Authority
- CN
- China
- Prior art keywords
- component
- emulsion
- water
- preparation
- persulphate
- 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.)
- Active
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a preparation method of a crosslinked acrylic emulsion for waterproofing paints, which comprises the following components in percentage by weight of the emulsion: 35-40% of butyl acrylate, 10-15% of styrene, 0.5-1% of hydroxymethyl acrylamide, 1.0-1.5% of diacetone-acryloamide, 1-3% of emulsifier, 0.2-0.5% of persulfate, 0.05-0.08% of adipic dihydrazide, 0.3% of defoamer, 40-50% of water and neutralizer, wherein the use amount of neutralizer is enough for adjusting the pH value of the emulsion to 6.5-7.5. According to the invention, hydroxymethyl acrylamide and diacetone-acryloamide are used as crosslinking monomers and adipic dihydrazide serves as a curing agent; and after being crosslinked and cured, a paint film is high in crosslinking density and excellent in adhesion to a cement base material. The crosslinked acrylic emulsion has the advantages of high crosslinking density, strong adhesion, high film strength, excellent cement coagulation delaying capability and is applicable to both single-component and double-component waterproofing paints.
Description
Technical field
The present invention relates to a kind of building coating, relate in particular to a kind of cross-linking type waterproof coating acrylic emulsion; Also relate to the preparation method of this emulsion.
Background technology
Water-proof acrylic acid paint is taking polymer emulsions such as acrylate as basis, the building water-proof paint that adds cement or other fillers, auxiliary agent to make.By adjusting the ratio of each component in emulsion, can meet different engine requests.In water-proof acrylic acid paint, polymer emulsion is the key of waterproofing quality, waterproof paint is in the market the simple mixing of polymkeric substance and cement or other fillers, exist and can not form cured film, poor to substrate adhesion, with the problem of cement compatibility slow setting ability.
Summary of the invention
It is large that technical problem to be solved by this invention is to provide a kind of cross-linking density, and strong adhesion, to cement retardative ability excellence, is applicable to the preparation method of the cross-linking type waterproof coating acrylic emulsion of single double-component waterproof coating material simultaneously.
For solving the problems of the technologies described above, technical scheme of the present invention is, the preparation method of cross-linking type waterproof coating acrylic emulsion, and in described emulsion, each composition accounts for the per-cent of emulsion weight and is: butyl acrylate: 35～40%; Vinylbenzene: 10～15%; N-methylolacrylamide: 0.5～1%; Diacetone-acryloamide(DAA): 1.0～1.5%; Emulsifying agent: 1～3%; Persulphate: 0.2～0.5%; Own acid dihydrazide: 0.05～0.08%; Defoamer: 0.3%; Water: 40～50%; Neutralizing agent: operating weight is for making ph value of emulsion be adjusted to 6.5～7.5 aequums; Its preparation process is:
First, synthetic polymer, uses Acrylic Acid Monomer synthetic polymer, and concrete steps are:
A) emulsifying agent described in water described in 17～23% and 2～2.5% is added to pre-emulsification tank, start stirring, be sequentially added into after described butyl acrylate, described vinylbenzene, described n-methylolacrylamide, described diacetone-acryloamide(DAA) pre-emulsification as component one is for subsequent use;
B) emulsifying agent described in water described in 17～20.5% and 0.2～0.5% is added to reactor, heat up;
C) be that component two is for subsequent use by persulphate stirring and dissolving described in water described in 0.75～1.5% and 0.2～0.35%;
D) the described persulphate of 3～5% described water and 0.03～0.1% is dissolved as to component three for subsequent use;
E) when described temperature of reaction kettle rises to 70～75 DEG C, add component one described in 18～22 ㎏ to continue to heat up, temperature adds described component two while rising to 80～85 DEG C, insulation reaction 25～35 minutes;
F) after reaction finishes, temperature-stable, between 80～83 DEG C, starts to drip remaining described component one and described component and drips for three, 4～4.5 hours;
G) insulation finishes, and is cooled to 60～70 DEG C and carries out rear elimination;
Secondly, cooling neutralization, neutralizes synthetic polymkeric substance with described neutralizing agent, and concrete steps are:
H) be cooled to below 45 DEG C, being neutralized to pH value with described neutralizing agent is 6.5～7.5;
Finally, add described own acid dihydrazide to stir evenly filtration discharging, concrete steps are:
I) add described own acid dihydrazide and described defoamer to stir evenly filtration discharging.
As preferred technical scheme, described neutralizing agent is ammoniacal liquor.
As preferred technical scheme, described persulphate is ammonium persulphate.
Owing to having adopted technique scheme, cross-linking type waterproof coating acrylic emulsion, in emulsion, each composition accounts for the per-cent of emulsion weight and is, butyl acrylate: 35～40%; Vinylbenzene: 10～15%; N-methylolacrylamide: 0.5～1%; Diacetone-acryloamide(DAA): 1.0～1.5%; Emulsifying agent: 1～3%; Persulphate: 0.2～0.5%; Own acid dihydrazide: 0.05～0.08%; Defoamer: 0.3%; Water: 40～50%; Neutralizing agent: operating weight is for making ph value of emulsion be adjusted to 6.5～7.5 aequums; It is cross-linking monomer that the present invention adopts described n-methylolacrylamide and described diacetone-acryloamide(DAA), described own acid dihydrazide is solidifying agent, after paint film crosslinking curing, paint film cross-linking density is large, intensity is high, to cementitious substrate sticking power excellence, metal substrate is had to certain antirust passivation, utilize the present invention to prepare cement waterproof paint, after mixed preparing, slow setting ability is strong, after tested, in confined conditions, by a certain percentage with cement mixing after, under 45 DEG C of constant temperatures, deposit and never degenerate for 7 days, can avoid on-the-spot preparation link; The waterproof paint that utilizes the present invention to prepare, can be widely used in the waterproofing works such as the interior exterior wall of buildings, tunnel, swimming pool, treatment tank and roofing, effect is more superior than prior art, cross-linking density of the present invention is large, strong adhesion, coating strength is large, to cement retardative ability excellence, is applicable to single double-component waterproof coating material simultaneously.
Embodiment
Below in conjunction with embodiment, further set forth the present invention.In the following detailed description, only by the mode of explanation, some example embodiment of the present invention has been described.Undoubtedly, those of ordinary skill in the art can recognize, without departing from the spirit and scope of the present invention in the situation that, can revise described embodiment by various mode.Therefore, being described in is illustrative in essence, instead of for limiting the protection domain of claim.
To make one ton of cross-linking type waterproof coating acrylic emulsion as example:
Each composition weight ratio is prepared, described butyl acrylate 35%, described vinylbenzene 15%, described n-methylolacrylamide 1%, described diacetone-acryloamide(DAA) 1.5%, emulsifying agent 2.4% described in Vinyl Ether sodium sulfonate; Described ammonium persulphate 0.25%, described own acid dihydrazide 0.07%, described defoamer 0.3%, described water 44.48%, described ammoniacal liquor is appropriate.
Above starting material are carried out to step once:
First, emulsifying agent described in water described in 18.5% and 2.15% is added to pre-emulsification tank, start stirring, be sequentially added into after 35% described butyl acrylate, 15% described vinylbenzene, 1% described n-methylolacrylamide, 1.5% described diacetone-acryloamide(DAA) pre-emulsification as component one is for subsequent use.
Secondly, emulsifying agent described in water described in 18% and 0.25% is added to reactor, heat up.
Again, be that component two is for subsequent use by ammonium persulphate stirring and dissolving described in water described in 1% and 0.2%.
Then, ammonium persulphate described in water described in 4% and 0.05% is dissolved as to component three for subsequent use, other raw material for standby.
When described temperature of reaction kettle rises to 75 DEG C, add component one described in 20 ㎏ to continue to heat up.Temperature adds described component two while rising to 80 DEG C, insulation reaction 30 minutes.
After reaction finishes, temperature-stable, between 80～83 DEG C, starts to drip remaining described component one and described component and drips for three, 4～4.5 hours.
Insulation finishes, and is cooled to 60～70 DEG C and carries out rear elimination.
Be cooled to below 45 DEG C, qualified to pH value with described ammonia neutralization.
Finally, add described in 0.07% solidifying agent defoamer described in own acid dihydrazide and 0.3% to stir evenly filtration discharging.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (3)
1. the preparation method of cross-linking type waterproof coating acrylic emulsion, is characterized in that, in described emulsion, each composition accounts for the per-cent of emulsion weight and is: butyl acrylate: 35～40%; Vinylbenzene: 10～15%; N-methylolacrylamide: 0.5～1%; Diacetone-acryloamide(DAA): 1.0～1.5%; Emulsifying agent: 1～3%; Persulphate: 0.2～0.5%; Own acid dihydrazide: 0.05～0.08%; Defoamer: 0.3%; Water: 40～50%; Neutralizing agent: operating weight is for making ph value of emulsion be adjusted to 6.5～7.5 aequums; Its preparation process is:
First, synthetic polymer, uses Acrylic Acid Monomer synthetic polymer, and concrete steps are:
A) emulsifying agent described in water described in 17～23% and 2～2.5% is added to pre-emulsification tank, start stirring, be sequentially added into after described butyl acrylate, described vinylbenzene, described n-methylolacrylamide, described diacetone-acryloamide(DAA) pre-emulsification as component one is for subsequent use;
B) emulsifying agent described in water described in 17～20.5% and 0.2～0.5% is added to reactor, heat up;
C) be that component two is for subsequent use by persulphate stirring and dissolving described in water described in 0.75～1.5% and 0.2～0.35%;
D) the described persulphate of 3～5% described water and 0.03～0.1% is dissolved as to component three for subsequent use;
E) when described temperature of reaction kettle rises to 70～75 DEG C, add component one described in 18～22 ㎏ to continue to heat up, temperature adds described component two while rising to 80～85 DEG C, insulation reaction 25～35 minutes;
F) after reaction finishes, temperature-stable, between 80～83 DEG C, starts to drip remaining described component one and described component and drips for three, 4～4.5 hours;
G) insulation finishes, and is cooled to 60～70 DEG C and carries out rear elimination;
Secondly, cooling neutralization, neutralizes synthetic polymkeric substance with described neutralizing agent, and concrete steps are:
H) be cooled to below 45 DEG C, being neutralized to pH value with described neutralizing agent is 6.5～7.5;
Finally, add described own acid dihydrazide to stir evenly filtration discharging, concrete steps are:
I) add described own acid dihydrazide and described defoamer to stir evenly filtration discharging.
2. the preparation method of cross-linking type waterproof coating acrylic emulsion as claimed in claim 1, is characterized in that, described neutralizing agent is ammoniacal liquor.
3. the preparation method of cross-linking type waterproof coating acrylic emulsion as claimed in claim 1, is characterized in that, described persulphate is ammonium persulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412736.0A CN102911580B (en) | 2012-10-25 | 2012-10-25 | Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412736.0A CN102911580B (en) | 2012-10-25 | 2012-10-25 | Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102911580A CN102911580A (en) | 2013-02-06 |
| CN102911580B true CN102911580B (en) | 2014-11-05 |
Family
ID=47610168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210412736.0A Active CN102911580B (en) | 2012-10-25 | 2012-10-25 | Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102911580B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017521519A (en) | 2014-07-01 | 2017-08-03 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Dispersion of (meth) acrylate copolymer containing hydroxyalkyl (meth) acrylate functional monomer units for flexible cement waterproofing |
| CN105585658A (en) * | 2015-02-04 | 2016-05-18 | 喻冬秀 | Normal-temperature self-crosslinking fluorine-containing acrylate emulsion for woodware and preparation method thereof |
| CN109181594A (en) * | 2018-11-08 | 2019-01-11 | 东莞市彩龙包装材料有限公司 | A kind of liquid glue and preparation method thereof |
| CN109971281A (en) * | 2019-04-15 | 2019-07-05 | 苏州市姑苏新型建材有限公司 | A kind of rapid-curing cutback building water-proof paint |
| WO2023213719A1 (en) | 2022-05-05 | 2023-11-09 | Basf Se | Dispersion of (meth)acrylate copolymer and use thereof as a binder for cementitious materials |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060954B (en) * | 2010-11-23 | 2013-04-03 | 广州慧谷化学有限公司 | Acrylic emulsion as well as preparation method and application thereof |
| CN102391411A (en) * | 2011-08-29 | 2012-03-28 | 华南理工大学 | Low-temperature self-crosslinking polyacrylate pigment printing binding agent and preparation method thereof |
-
2012
- 2012-10-25 CN CN201210412736.0A patent/CN102911580B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102911580A (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102911580B (en) | Crosslinked acrylic emulsion for waterproofing paints and preparation method thereof | |
| CN105037648B (en) | It is a kind of to protect collapse water reducing type polycarboxylate water-reducer and its low-temperature rapid preparation method | |
| CN105367698B (en) | A kind of elastic water-proof emulsion | |
| CN103242007B (en) | Preparation method of graphene oxide modified polymer cement waterproof coating | |
| CN106366228A (en) | Polyacrylic emulsion transparent waterproof glue and preparation method thereof | |
| CN103183491B (en) | The preparation method of crosslinking polymer cement waterproofing paint | |
| CN105385279A (en) | Polymer cement waterproof paint and preparing method thereof | |
| CN111171662B (en) | Roof waterproof coating and preparation method thereof | |
| CH636891A5 (en) | AQUEOUS VINYL CHLORIDE COPOLYMER DISPERSION, THEIR PRODUCTION AND USE. | |
| CN111320440B (en) | Anticorrosive quick-drying cement-based waterproof coating and preparation method thereof | |
| CN103772868B (en) | A kind of powder-acrylate composite grouting material and preparation method thereof and application | |
| CN108441167A (en) | Acrylate material and preparation method and application thereof | |
| CN105315413A (en) | Novel modified acrylate emulsion adhesive and preparation method thereof | |
| CN105419545A (en) | Polymer cement waterproof coating and preparation method thereof | |
| CN109111547B (en) | Silicone-acrylic modified emulsion waterproof agent and preparation method and application thereof | |
| CN104327647A (en) | Ultralow-temperature roofing reflective, heat insulation and waterproof coating and preparation method thereof | |
| CN103553426A (en) | Preparation method of polymer and cement composite waterproof coating | |
| CN101608087A (en) | Polymer cement waterproof coating acrylic emulsion | |
| CN101885889B (en) | Acrylic ester elastic emulsion and preparation method thereof | |
| CN106632791A (en) | Primer styrene-acrylic emulsion resistant to fresh cement efflorescence and preparation method of primer styrene-acrylic emulsion | |
| CN105566582A (en) | Preparation method of aqueous anti-corrosive epoxy resin acrylate emulsion | |
| US6709710B2 (en) | Method for producing coated mineral shaped bodies | |
| CN108314946A (en) | A kind of composite aqueous paint | |
| JP4609186B2 (en) | Polymer cement composition | |
| CN110015862A (en) | Waterproof and anticorrosion ardealite compound additive and waterproof and anticorrosion ardealite construction material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |