CN104341134A - Polymer cement water-proof coating and preparation method thereof - Google Patents
Polymer cement water-proof coating and preparation method thereof Download PDFInfo
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- CN104341134A CN104341134A CN201310732389.4A CN201310732389A CN104341134A CN 104341134 A CN104341134 A CN 104341134A CN 201310732389 A CN201310732389 A CN 201310732389A CN 104341134 A CN104341134 A CN 104341134A
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Abstract
The invention provides a polymer cement waterproof coating. The polymer cement waterproof coating comprises a liquid material and a powder material in a mass ratio of 1: (1.0-2.5), wherein the liquid material comprises the following components in percentage by weight: 85-95wt% of polymer emulsion, 0.5-1.0wt% of a defoaming agent, 0.02-0.1wt% of a preservative and 4-14wt% of water; the powder material comprises the following components in percentage by weight: 30-50wt% of cement, 39-50wt% of quartz sand, 10-20wt% of heavy calcium carbonate and 0.05-1.6wt% of a dust suppressant, wherein the dust suppressant is one or more of C2-C8 dihydric alcohol, oligomers of dihydric alcohol and esters of the oligomers of dihydric alcohol and the degrees of polymerization of the oligomers of dihydric alcohol are less than 10. The polymer cement waterproof coating disclosed by the invention has the advantages of good environmental friendliness and good strength and elongation properties and no dust is generated during production, transportation, storage and use of the polymer cement waterproof coating.
Description
Technical field
The present invention relates to chemical building material field, particularly polymer cement waterproof paint and preparation method thereof.
Background technology
Two components reaction volatile-type waterproof paints that polymer cement waterproof paint is liquid material based on polymer emulsion and is composited with the powder that cement, quartz sand, coarse whiting and additive etc. form.Due to rigidity and the good cohesiveness of its existing cement-based material, there are again polymer emulsion snappiness and splitting resistance, the dark welcome by vast design, especially constructor and favorable comment.Formulation and the quality and popularization implemented ensureing polymer cement waterproof paint of industry standard JC/T864 and standard GB/T/T23445 " polymer cement waterproof paint " play positive effect.
Polymer cement waterproof paint is very successful in applying of China.According to the investigation of China Building Materials Industry Association, within 2008, waterproof paint accounts for 33.6% of waterproof construction area, and polymer cement waterproof paint is 42.5% in the ratio of waterproof paint.Along with developing rapidly of Building Trade in China, the usage quantity of polymer cement waterproof paint with annual 15 ~ 17% speed increment, the usage quantity of China's polymer cement waterproof paint in 2010 reaches 500,000 tons.In range of application, polymer cement waterproof paint is mainly applicable between the bath of lavatory, the waterproof construction of balcony, on a small quantity for the waterproof construction of vault.
At the initial stage that polymer cement waterproof paint is produced and promoted, the multiplex ammoniacal liquor of benzene emulsion that manufacturer uses, as neutralizing agent, regulates the pH value of emulsion.During construction, after liquid material and powder mix according to the ratio that producer provides, the ammoniacal liquor in benzene emulsion cements out by cement and emulsion reaction, discharges with the form of ammonia, it is many that smelling good compared by ammonia taste and the thinner of polyurethane water-proof paint, and many constructors receive ammonia taste.
Originally the factor allowing people's acceptable ammonia taste become construction worker at leisure to complain in construction process.Ammonia thick taste, especially constructs under the environment of improper ventilation, and the eyes of meeting stimulation applications person, the polymer cement waterproof paint therefore without ammonia taste arises at the historic moment.
Epoch are improving, and whenever stronger constructor is than the past to the concern of own health.Meanwhile, China is after experienced by fast development, and create some environmental problems, such as, topsoil, stream pollution etc. are more and more serious.Each metropolitan PM2.5 index is often beyond the upper limit of local testing tool.People is known, and the source of city haze is: burning of coal, vehicle exhaust, building airborne dust, kitchen fume etc.Powder in polymer cement waterproof paint can produce airborne dust, contaminate environment in production, packaging, storage and use procedure, affects the healthy of constructor.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of polymer cement waterproof paint and preparation method thereof, and described polymer cement waterproof paint is without airborne dust, and the feature of environmental protection is good.
The invention discloses a kind of polymer cement waterproof paint, be made up of liquid material and powder, the mass ratio of liquid material and powder is 1:1.0 ~ 2.5;
Described liquid material comprises following component:
85 ~ 95wt% polymer emulsion;
0.5 ~ 1.0wt% defoamer;
0.02 ~ 0.1wt% sanitas;
4 ~ 14wt% water;
Described powder comprises following component:
30 ~ 50wt% cement;
39 ~ 50wt% quartz sand;
10 ~ 20wt% coarse whiting;
0.05 ~ 1.6wt% dust-inhibitor;
Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more;
The polymerization degree of the polymkeric substance of described dibasic alcohol is less than 10.
Preferably, described dust-inhibitor be ethylene glycol, the polymerization degree be 3 ~ 8 polyoxyethylene glycol, propylene glycol, the polymerization degree be 2 ~ 6 polypropylene glycol or the polymerization degree be the dibenzonate of 2 ~ 6.
Preferably, described powder comprises 0.08 ~ 1.3wt% dust-inhibitor.
Preferably, described polymer emulsion is the polymer emulsion not containing polyoxyethylene octylphenol ether.
Preferably, described Macroscopic single crystal emulsion is one or both in acrylic ester emulsion, benzene emulsion, polychloroprene latex and ethylene-vinyl acetate copolymer emulsion.
Preferably, described quartz sand is the grating of 40 ~ 70 order quartz sands, 50 ~ 100 order quartz sands or 100 ~ 200 order quartz sands.
The invention also discloses a kind of preparation method of polymer cement waterproof paint, comprise the following steps:
(A) by 85 ~ 95wt% polymer emulsion, 0.5 ~ 1.0wt% defoamer, 0.02 ~ 0.1wt% sanitas and 4 ~ 14wt% water mix and blend, liquid material is obtained;
0.05 ~ 1.6wt% dust-inhibitor of heating atomization is joined in the mixture of 30 ~ 50wt% cement, 39 ~ 50wt% quartz sand and 10 ~ 20wt% coarse whiting, obtain powder; Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more;
The polymerization degree of the polymkeric substance of described dibasic alcohol is less than 10;
(B) be that 1:1.5 ~ 2.5 mix with powder according to mass ratio by liquid material, obtain polymer cement waterproof paint.
Preferably, the temperature of described heating atomization is 60 ~ 90 DEG C.
Compared with prior art, Inventive polymers cement waterproof paint, is made up of liquid material and powder, and the mass ratio of liquid material and powder is 1:1.0 ~ 2.5; Described liquid material comprises liquid material described in following component and comprises following component: 85 ~ 95wt% polymer emulsion; 0.5 ~ 1.0wt% defoamer; 0.02 ~ 0.1wt% sanitas; 4 ~ 14wt% water; Described powder comprises following component: 30 ~ 50wt% cement; 39 ~ 50wt% quartz sand; 10 ~ 20wt% coarse whiting; 0.05 ~ 1.6wt% dust-inhibitor; Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more; The polymerization degree of the oligopolymer of described dibasic alcohol is less than 10.In the present invention, the ester selecting the dibasic alcohol polymkeric substance of small molecules dibasic alcohol, low polymerization degree or dibasic alcohol oligopolymer to be formed is dust-inhibitor, described dust-inhibitor and other raw material have good consistency, and described dust-inhibitor has oiliness, the surface of extremely small airborne dust particle can be wrapped in, increase the particle diameter of airborne dust particle, thus do not produce dust raising phenomenon, therefore polymer cement waterproof paint of the present invention does not all have airborne dust in production, transport, storage and use procedure, and the feature of environmental protection is good.Secondly, because described dust-inhibitor has plastification, its and other raw material interaction, makes final polymer cement waterproof paint have good extension property, can adapt to basic unit's expansion to a certain degree and contraction.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
The embodiment of the invention discloses a kind of polymer cement waterproof paint, be made up of liquid material and powder, the mass ratio of liquid material and powder is 1:1.0 ~ 2.5;
Described liquid material comprises following component:
85 ~ 95wt% polymer emulsion;
0.5 ~ 1.0wt% defoamer;
0.02 ~ 0.1wt% sanitas;
4 ~ 14wt% water;
Described powder comprises following component:
30 ~ 50wt% cement;
39 ~ 50wt% quartz sand;
10 ~ 20wt% coarse whiting;
0.05 ~ 1.6wt% dust-inhibitor;
Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more; The polymerization degree of the oligopolymer of described dibasic alcohol is less than 10.
In the present invention, polymer cement waterproof paint is made up of liquid material and powder, and the mass ratio of liquid material and powder is 1:1.0 ~ 2.5, is preferably 1:1.2 ~ 2.2.
Described liquid material comprises polymer emulsion, defoamer, sanitas and water.For reaching cleaner production and the good object of the feature of environmental protection, the polymer emulsion that described polymer emulsion preferably has no irritating odor, be more preferably the polymer emulsion not containing polyoxyethylene octylphenol ether (APEO) class emulsifying agent, most preferably be one or both in acrylic ester emulsion, benzene emulsion, ethene-vinyl acetate copolymer emulsion, styrene-butadiene latex, polychloroprene latex.The present invention is not particularly limited for the source of described polymer emulsion, commercially available prod.In liquid material, the content of described polymer emulsion is 85 ~ 95wt%, is preferably 88 ~ 93wt%.
Described defoamer is preferably ethylenedistearamide, oleic acid diethylenetriamine, phosphoric acid ester, dibutyl phosphate or silicone antifoam agent.The present invention is not particularly limited for the source of described defoamer, commercially available prod.In liquid material, the content of described defoamer is 0.5 ~ 1.0wt%, is preferably 0.7 ~ 0.9wt%.
The present invention is not particularly limited for the kind of described sanitas and source, selects according to kind well known to those skilled in the art.In liquid material, the content of described sanitas is 0.02 ~ 0.1wt%, is preferably 0.04 ~ 0.08wt%.
The environmentfriendly products that all preferably have no irritating odor of described sanitas and defoamer in the present invention.
In liquid material, also comprise aqueous solvent, the content of described water is 4 ~ 14wt%, is preferably 8 ~ 12wt%.
According to the present invention, described powder comprises cement, quartz sand, coarse whiting and dust-inhibitor.Described cement is not particularly limited, and is preferably composite Portland cement, silicate cement, white cement, high-alumina cement, sulphur aluminium cement or sulphur aluminium sulphur iron cement, is more preferably ordinary Portland cement.In powder, the content of described cement is 30 ~ 60wt%, is preferably 35 ~ 50wt%.
Described quartz sand is preferably the grating of 40 ~ 70 order quartz sands, 50 ~ 100 order quartz sands or 100 ~ 200 order quartz sands.The present invention is not particularly limited for the source of quartz sand, commercially available prod.In powder, the content of described quartz sand is 40 ~ 50wt%, is preferably 44 ~ 48wt%.
The fineness of described coarse whiting is preferably 100 ~ 800 orders, is more preferably 200 ~ 600 orders, most preferably is 300 ~ 500 orders.The present invention is not particularly limited for the source of described coarse whiting, commercially available prod.In powder, the content of described coarse whiting is 10 ~ 20wt%, is preferably 13 ~ 18wt%.
Described dust-inhibitor and other raw material have good consistency, and described dust-inhibitor has oiliness, the surface of extremely small airborne dust particle can be wrapped in, increase the particle diameter of airborne dust particle, thus can not dust raising phenomenon be there is, therefore polymer cement waterproof paint of the present invention does not all have airborne dust in production, transport, storage and use procedure, and the feature of environmental protection is good.Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more; The polymerization degree of the oligopolymer of described dibasic alcohol is less than 10.The polyoxyethylene glycol that described dust-inhibitor is preferably ethylene glycol, the polymerization degree is 3 ~ 8, propylene glycol, the polymerization degree be 2 ~ 6 polypropylene glycol or the polymerization degree be the dibenzonate of 2 ~ 6.The polymkeric substance of high molecular and other raw materials incompatible, cannot for the preparation of polymer cement waterproof paint.The present invention is not particularly limited for the source of described dust-inhibitor, commercially available prod.In powder, the content of described dust-inhibitor is 0.05 ~ 1.6wt%, is preferably 0.08 ~ 1.3wt%.
The invention also discloses the preparation method of the polymer cement waterproof paint described in technique scheme, comprise the following steps:
(A) by 85 ~ 95wt% polymer emulsion, 0.5 ~ 1.0wt% defoamer, 0.02 ~ 0.1wt% sanitas and 4 ~ 14wt% water mix and blend, liquid material is obtained;
0.05 ~ 1.6wt% dust-inhibitor of heating atomization is joined in the mixture of 30 ~ 50wt% cement, 39 ~ 50wt% quartz sand and 10 ~ 20wt% coarse whiting, obtain powder; Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more;
The polymerization degree of the oligopolymer of described dibasic alcohol is less than 10;
(B) be that 1:1.0 ~ 2.5 mix with powder according to mass ratio by liquid material, obtain polymer cement waterproof paint.
In the present invention, liquid material and powder is prepared first respectively.In preparation liquid material process, by polymer emulsion, defoamer, sanitas and water mix and blend, the rotating speed of described stirring is preferably 500 ~ 800rmp, and the time of described stirring is preferably 20 ~ 40 minutes.
When preparing powder, after dust-inhibitor heating atomization, its mixture with cement, quartz sand and coarse whiting being mixed, can powder be obtained.The temperature of described heating atomization is preferably 60 ~ 95 DEG C, is more preferably 70 ~ 90 DEG C.The dust-inhibitor of atomization forms the drop of oiliness, and the molecule being wrapped in airborne dust is outside, increases the particle diameter of particle, makes it occur without airborne dust.
After obtaining liquid material and powder, both are mixed, can polymer cement waterproof paint be obtained.
To the water resistance of the polymer cement waterproof paint obtained, intensity, extension property, dust suppression performance are tested, and result represents, polymer cement paint water resistance of the present invention is good, and environmental protection, without airborne dust.
In order to understand the present invention further, be described polymer cement waterproof paint provided by the invention and preparation method thereof below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
Embodiment 1
In a mixing bowl, add benzene emulsion 1000Kg, under stirring at low speed, add water 150Kg successively, defoamer 10Kg, sanitas 0.5Kg.Stir 20 minutes, by 50 order filter screen filtration, be liquid material, put into plastic tank and seal for subsequent use.
By 42.5 ordinary Portland cement 100Kg, quartz sand 125Kg, coarse whiting 30Kg adds in powder mixier successively, stirs 4 minutes, mixes; Dust-inhibitor dipropylene glycol dibenzoate 3Kg is heated to 75 DEG C, puts into spraying gun; Under whipped state, dust-inhibitor is joined in mixture with the form of atomization, liquid and powder is fully mixed, is powder.Pack with plastic bag sealing.Liquid material mixed with the weight ratio of powder by 1:2.2, blade coating is on Teflon mould at twice.Build controls at (1.5 ± 0.2) mm, maintenance 4 days under standard conditions, places 2 days in the baking oven of 40 DEG C, then according to the method test that GB/T23445-2009 " polymer cement waterproof paint " specifies.The physicals of the waterproof paint of the present embodiment meets every technical requirements of III type product in GB GB/T23445-2009, in table 1.
The salient features of table 1 embodiment and comparative example polymer cement waterproof paint
Carry out airborne dust recruitment evaluation to the polymer cement waterproof paint obtained, appraisal procedure is:
1) take 500g powder and put into the plastics bag that size is 280mm*400mm.Tighten after being full of air in plastics bag and seal, press timing register, acutely rock 120 seconds.
2) stop rocking, in stink cupboard, open plastics bag immediately, estimate in plastics bag and the density of plastic bag mouth place airborne dust, standard is as follows:
In 0-plastics bag and plastic bag mouth place does not all have airborne dust;
There is a little airborne dust in 1-plastics bag, do not have dust to overflow from plastic bag mouth;
There is observable airborne dust at 2-plastic bag mouth place;
3-plastic bag mouth place airborne dust is obvious.
Liquid material in polymer cement waterproof paint in embodiment 1, airborne dust grade is 0.If do not add dust-inhibitor in powder, the airborne dust grade of corresponding powder is 3.The airborne dust of powder can be effectively suppressed to produce adding of dust-inhibitor as can be seen here.
Embodiment 2
In a mixing bowl, add acrylic ester emulsion 1000Kg, add successively under stirring at low speed, water 70Kg, defoamer 6Kg, sanitas 0.5Kg.Stir 20 minutes, by 50 order filter screen filtration, be liquid material, put into plastic tank and seal for subsequent use.
By 42.5 ordinary Portland cement 100Kg, quartz sand 120Kg, coarse whiting 30Kg adds in powder mixier successively, stirs 4 minutes, mixes; Mixture (weight ratio the is 50/50) 3Kg of dust-inhibitor diethylene glycol dibenzoate and dipropylene glycol dibenzoate is heated to 75 DEG C, puts into spraying gun; Under whipped state, dust-inhibitor is joined in mixture with the form of atomization, liquid and powder is fully mixed, is powder.Pack with plastic bag sealing.
Liquid material is mixed with the weight ratio of powder by 1:1.2, obtains polymer cement waterproof paint.
Adopt the method for embodiment 1 to carry out airborne dust recruitment evaluation, result shows, the liquid material in the polymer cement waterproof paint in embodiment 2, and airborne dust grade is 0.
Embodiment 3
In a mixing bowl, add ethene-vinyl acetate copolymer emulsion 1000Kg, under stirring at low speed, add water 120Kg successively, defoamer 8Kg, sanitas 0.5Kg.Stir 20 minutes, by 50 order filter screen filtration, be liquid material, put into plastic tank and seal for subsequent use.
By composite Portland cement 80Kg, quartz sand 120Kg, coarse whiting 50Kg adds in powder mixier successively, stirs 4 minutes, mixes; Dust-inhibitor dipropylene glycol dibenzoate 3Kg is heated to 75 DEG C, puts into spraying gun; Under whipped state, dust-inhibitor is joined in mixture with the form of atomization, liquid and powder is fully mixed, is powder.Pack with plastic bag sealing.
Liquid material is mixed with the weight ratio of powder by 1:1.5, obtains polymer cement waterproof paint.
Adopt the method for embodiment 1 to carry out airborne dust recruitment evaluation, result shows, the liquid material in the polymer cement waterproof paint in embodiment 3, and airborne dust grade is 0.
Comparative example 1
In a mixing bowl, add ethene-vinyl acetate copolymer emulsion 1000Kg, add water 150Kg successively under stirring at low speed, defoamer 10Kg stirs 20 minutes, by 50 order filter screen filtration, is liquid material, puts into plastic tank and seals for subsequent use.
By 42.5 ordinary Portland cement 100Kg, quartz sand 125Kg, coarse whiting 25Kg adds in powder mixier successively, stirs 4 minutes, mixes, be powder.Pack with plastic bag sealing.
Liquid material is mixed with the weight ratio of powder by 1:2.2, obtains polymer cement waterproof paint.
Adopt the method for embodiment 1 to carry out airborne dust recruitment evaluation, result shows, the liquid material in the polymer cement waterproof paint in comparative example 1, and airborne dust grade is 3.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a polymer cement waterproof paint, is made up of liquid material and powder, and the mass ratio of liquid material and powder is 1:1.0 ~ 2.5;
Described liquid material comprises following component:
85 ~ 95wt% polymer emulsion;
0.5 ~ 1.0wt% defoamer;
0.02 ~ 0.1wt% sanitas;
4 ~ 14wt% water;
Described powder comprises following component:
30 ~ 50wt% cement;
39 ~ 50wt% quartz sand;
10 ~ 20wt% coarse whiting;
0.05 ~ 1.6wt% dust-inhibitor;
Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more;
The polymerization degree of the oligopolymer of described dibasic alcohol is less than 10.
2. polymer cement waterproof paint according to claim 1, it is characterized in that, described dust-inhibitor is ethylene glycol, polyoxyethylene glycol that the polymerization degree is 3 ~ 8, propylene glycol, the polymerization degree be 2 ~ 6 polypropylene glycol or the polymerization degree be the dibenzonate of 2 ~ 6.
3. polymer cement waterproof paint according to claim 1, is characterized in that, described powder comprises 0.08 ~ 1.3wt% dust-inhibitor.
4. polymer cement waterproof paint according to claim 1, is characterized in that, described polymer emulsion is the polymer emulsion not containing polyoxyethylene octylphenol ether class emulsifying agent.
5. polymer cement waterproof paint according to claim 4, is characterized in that, described Macroscopic single crystal emulsion is one or both in acrylic ester emulsion, benzene emulsion, polychloroprene latex and ethylene-vinyl acetate copolymer emulsion.
6. polymer cement waterproof paint according to claim 1, is characterized in that, described quartz sand is the grating of 40 ~ 70 order quartz sands, 50 ~ 100 order quartz sands or 100 ~ 200 order quartz sands.
7. a preparation method for polymer cement waterproof paint, comprises the following steps:
(A) by 85 ~ 95wt% polymer emulsion, 0.5 ~ 1.0wt% defoamer, 0.02 ~ 0.1wt% sanitas and 4 ~ 14wt% water mix and blend, liquid material is obtained;
0.05 ~ 1.6wt% dust-inhibitor of heating atomization is joined in the mixture of 30 ~ 50wt% cement, 39 ~ 50wt% quartz sand and 10 ~ 20wt% coarse whiting, obtain powder; Described dust-inhibitor be the dibasic alcohol of C2 ~ C8, the oligopolymer of dibasic alcohol and dibasic alcohol oligopolymer formed ester in one or more;
The polymerization degree of the polymkeric substance of described dibasic alcohol is less than 10;
(B) be that 1:1.0 ~ 2.5 mix with powder according to mass ratio by liquid material, obtain polymer cement waterproof paint.
8. preparation method according to claim 7, is characterized in that, the temperature of described heating atomization is 60 ~ 90 DEG C.
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