CN106146724A - A kind of preparation method of the pure-acrylic emulsion of building coating - Google Patents
A kind of preparation method of the pure-acrylic emulsion of building coating Download PDFInfo
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- CN106146724A CN106146724A CN201510165341.9A CN201510165341A CN106146724A CN 106146724 A CN106146724 A CN 106146724A CN 201510165341 A CN201510165341 A CN 201510165341A CN 106146724 A CN106146724 A CN 106146724A
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Abstract
The invention discloses the preparation method of the pure-acrylic emulsion of a kind of building coating, belong to building coating technical field, be that prior art is improved.This emulsion is 65 ~ 75% by deionized water by mass percentage, methyl methacrylate is 10 ~ 15%, butyl acrylate is 10-20%, methacrylic acid is 1 ~ 5%, and OP-10 is 0.4 ~ 1%, and dodecylbenzene sodium sulfonate is 0.1 ~ 0.5%, potassium peroxydisulfate is 0.1 ~ 0.6%, sodium bicarbonate is 0.1 ~ 0.5%, reactive emulsifier 0.1 ~ 0.5%, and ammonia 0.1-0.2% synthesizes.The present invention has that acid resistance, alkali resistance and impermeability are good, low temperature flexibility is good, Weatherproof ageing-resistant excellent performance, pure-acrylic emulsion viscosity are suitable, have good stability, synthesis technique is simple, cheap, non-environmental-pollution, the advantages such as the technology requirement meeting watersoluble pure acrylic emulsion for construction, have huge market application foreground.
Description
Technical field
The present invention relates to building coating field, specifically, relate to the preparation method of the pure-acrylic emulsion of a kind of building coating.
Background technology
Pure-acrylic emulsion has at home and abroad early been developed and has produced, but compared with the application request of pure-acrylic emulsion, there is also some problems mainly have minimum film formation temperature higher, and emulsion flow degeneration particularly viscosity can not be regulated effectively.In order to solve the problem that existing pure-acrylic emulsion exists, the pure-acrylic emulsion for building developing function admirable, it it is the hot subject of scientific research personnel both domestic and external research.Traditional pure-acrylic emulsion is mainly formed by methyl methacrylate, butyl acrylate and a small amount of acrylic acid copolymer.The pure-acrylic emulsion being only polymerized by these three monomer also exists many problems, as poor in film property, film-forming temperature high, strength of coating is low, the resistance to water of coating, abrasion resistance, light resistance are poor, does not reaches preferable decorative effect.The present invention uses the watersoluble pure acrylic emulsion for construction that seed dripping method is prepared, and can overcome disadvantages mentioned above, have no report at present in all searching documents.
Summary of the invention
In order to solve technical problem and the deficiency that existing pure-acrylic emulsion exists, it is an object of the invention to carry out improved properties for existing pure-acrylic emulsion, thus the preparation method of the pure-acrylic emulsion of a kind of building coating is provided.
It is a further object to provide the preparation method of this watersoluble pure acrylic emulsion for construction.
In order to realize above-mentioned purpose, the technical measures that the preparation method of the pure-acrylic emulsion of a kind of building coating that the present invention provides is taked are: carrying out proportioning make through mixing with methyl methacrylate, butyl acrylate, methacrylic acid, NPE (OP-10), detergent alkylate naphthenic acid sodium, potassium peroxydisulfate, sodium bicarbonate, ammonia, deionized water, the mass percentage content scope of its each component is:
Deionized water is 65～75%, methyl methacrylate is 10～15%, butyl acrylate is 10-20%, methacrylic acid is 1～5%, and OP-10 is 0.4～1%, and dodecylbenzene sodium sulfonate is 0.1～0.5%, potassium peroxydisulfate is 0.1～0.6%, sodium bicarbonate is 0.1～0.5%, reactive emulsifier 0.1～0.5%, ammonia 0.1-0.2%.
Wherein, upper described deionized water is redistilled water, is cooled to when 25 DEG C use.
Upper described methyl methacrylate, butyl acrylate, methacrylic acid are the domestic technical grade of use.Wherein, methyl methacrylate has certain case hardness；The resistance to water of butyl acrylate, alkali resistance, good film-forming property, lustrous surface property is high；Methacrylic acid contains polar group, and its hydrophilic, coloring and adhesion property are good, three's copolymerization, is conducive to the advantage that the film combination property making synthetic emulsion has them.
Upper (OP-10), dialkyl benzene sulfonic acids sodium, potassium peroxydisulfate describedly, sodium bicarbonate is also domestic technical grade；Wherein, (OP-10) is i.e. NPE, for nonionic emulsifier；Dodecylbenzene sodium sulfonate is i.e. anionic emulsifier；Potassium peroxydisulfate is initiator；Sodium bicarbonate acts primarily as the effect of buffer agent.
Upper described reactive emulsifier is exactly sodium vinyl sulfonate, and it contains unsaturated double-bond, can efficiently solve the problem that resistance to water after film forming is bad.Because the moon, nonionic emulsifier are bad with film forming matter compatibility, film forming procedure can produce pore, affects water resistance；Add reactive emulsifier, have the good compatibility, reduce the quantity of pore, improve resistance to water and the closure of film.
The preparation method of the pure-acrylic emulsion of a kind of building coating comprises the steps:
(1) deionized water and butyl acrylate, methyl methacrylate, methacrylic acid, NPE, dodecylbenzene sodium sulfonate, the reactive emulsifier of 4/5 are joined in emulsifying container, after carrying out emulsifying, add sodium bicarbonate, stir, make opalescent mixture；
(2) remaining 1/5 deionized water is placed in emulsifying container, heating in water bath, when temperature is at 50 DEG C, adds part potassium peroxydisulfate, be warming up between 80～88 DEG C, be incubated 1h；
(3) dripping in emulsifying container by remaining potassium peroxydisulfate, rate of addition is 120L/h, after dripping, then constant temperature 1h, it is cooled to less than 40 DEG C；
(4) adding ammonia, regulation pH value is between 7～8, i.e. obtains watersoluble pure acrylic emulsion for construction.
A kind of preparation method of the pure-acrylic emulsion of the building coating of the present invention its have the advantages that: acid resistance, alkali resistance and impermeability are good, low temperature flexibility is good, Weatherproof ageing-resistant excellent performance, pure-acrylic emulsion viscosity are suitable, have good stability, resistance to water, Ca2+The combination properties such as stability are good, synthesis technique is simple, cheap, easy construction, non-environmental-pollution.All properties can meet the technology requirement of watersoluble pure acrylic emulsion for construction, is inner-outer wall building coating first-selection emulsion, has good development prospect.
Detailed description of the invention
Below in conjunction with embodiment, a kind of watersoluble pure acrylic emulsion for construction of the present invention and preparation method thereof is described in further detail.
Embodiment 1
One, composition of raw materials:
Deionized water 75kg
Methyl methacrylate 13kg
Butyl acrylate 10kg
Methacrylic acid 1kg
OP-10 0.4kg
Dodecylbenzene sodium sulfonate 0.2kg
Potassium peroxydisulfate 0.1kg
Sodium bicarbonate 0.1kg
Reactive emulsifier 0.1kg
Ammonia 0.1kg
Two, preparation method:
(1) deionized water and butyl acrylate, methyl methacrylate, methacrylic acid, NPE, dodecylbenzene sodium sulfonate, the reactive emulsifier of 4/5 are joined in emulsifying container, after carrying out emulsifying, add sodium bicarbonate, stir, make opalescent mixture；
(2) remaining 1/5 deionized water is placed in emulsifying container, heating in water bath, when temperature is at 50 DEG C, adds part potassium peroxydisulfate, be warming up between 80～88 DEG C, be incubated 1h；
(3) dripping in there-necked flask by remaining potassium peroxydisulfate, rate of addition is 120L/h, after dripping, then constant temperature 1h, it is cooled to less than 40；
(4) adding ammonia, regulation pH value is between 7～8, i.e. obtains watersoluble pure acrylic emulsion for construction.
Embodiment 2
One, composition of raw materials:
Deionized water 65kg
Methyl methacrylate 15kg
Butyl acrylate 12kg
Methacrylic acid 5kg
0P-10 1kg
Dodecylbenzene sodium sulfonate 0.5kg
Potassium peroxydisulfate 0.6kg
Sodium bicarbonate 0.4kg
Reactive emulsifier 0.4kg
Ammonia 0.1kg
Two, preparation method is same as in Example 1.
Claims (6)
1. the preparation method of the pure-acrylic emulsion of a building coating, it is characterized in that: the most composed of the following components: deionized water is 65～75%, methyl methacrylate is 10～15%, and butyl acrylate is 10-20%, and methacrylic acid is 1～5%, OP-10 is 0.4～1%, dodecylbenzene sodium sulfonate is 0.1～0.5%, and potassium peroxydisulfate is 0.1～0.6%, and sodium bicarbonate is 0.1～0.5%, reactive emulsifier 0.1～0.5%, ammonia 0.1-0.2%.
The preparation method of the pure-acrylic emulsion of a kind of building coating the most according to claim 1, it is characterised in that: described OP-10 is NPE, belongs to nonionic emulsifier.
The preparation method of the pure-acrylic emulsion of a kind of building coating the most according to claim 1, it is characterised in that: described dodecylbenzene sodium sulfonate is anionic emulsifier.
The preparation method of the pure-acrylic emulsion of a kind of building coating the most according to claim 1, it is characterised in that: described reactive emulsifier is sodium vinyl sulfonate.
5. the preparation method of the pure-acrylic emulsion of a building coating, it is characterised in that: comprise the steps:
(1) deionized water and butyl acrylate, methyl methacrylate, methacrylic acid, NPE, dodecylbenzene sodium sulfonate, the reactive emulsifier of 4/5 are joined in emulsifying container, after carrying out emulsifying, add sodium bicarbonate, stir, make opalescent mixture；
(2) remaining 1/5 deionized water is placed in emulsifying container, heating in water bath, when temperature is at 50 DEG C, adds part potassium peroxydisulfate, be warming up between 80～88 DEG C, be incubated 1h；
(3) dripping in emulsifying container by remaining potassium peroxydisulfate, rate of addition is 120L/h, after dropping, then constant temperature 1h, it is cooled to less than 40 DEG C；
(4) adding ammonia, regulation pH value is between 7～8, i.e. obtains watersoluble pure acrylic emulsion for construction.
The preparation method of the pure-acrylic emulsion of a kind of building coating the most according to claim 5, it is characterised in that: the deionized water described in step (1) and step (2) be temperature be the redistilled water of 25 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165341.9A CN106146724A (en) | 2015-04-09 | 2015-04-09 | A kind of preparation method of the pure-acrylic emulsion of building coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510165341.9A CN106146724A (en) | 2015-04-09 | 2015-04-09 | A kind of preparation method of the pure-acrylic emulsion of building coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417850A (en) * | 2017-06-08 | 2017-12-01 | 北京东方雨虹防水技术股份有限公司 | Pure-acrylic emulsion and preparation method thereof and metal Roof waterproof antirusting paint |
| CN109651984A (en) * | 2018-12-14 | 2019-04-19 | 广州全系建材有限公司 | A kind of leakage-repairing glue and preparation method thereof persistently permeated |
-
2015
- 2015-04-09 CN CN201510165341.9A patent/CN106146724A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417850A (en) * | 2017-06-08 | 2017-12-01 | 北京东方雨虹防水技术股份有限公司 | Pure-acrylic emulsion and preparation method thereof and metal Roof waterproof antirusting paint |
| CN107417850B (en) * | 2017-06-08 | 2020-01-14 | 北京东方雨虹防水技术股份有限公司 | Pure acrylic emulsion, preparation method thereof and waterproof and antirust coating for metal roof |
| CN109651984A (en) * | 2018-12-14 | 2019-04-19 | 广州全系建材有限公司 | A kind of leakage-repairing glue and preparation method thereof persistently permeated |
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Application publication date: 20161123 |