CN101412862A - Aqueous epoxy putty, and preparation and use method thereof - Google Patents
Aqueous epoxy putty, and preparation and use method thereof Download PDFInfo
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- CN101412862A CN101412862A CNA200810217808XA CN200810217808A CN101412862A CN 101412862 A CN101412862 A CN 101412862A CN A200810217808X A CNA200810217808X A CN A200810217808XA CN 200810217808 A CN200810217808 A CN 200810217808A CN 101412862 A CN101412862 A CN 101412862A
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Abstract
The invention relates to an aqueous epoxy putty and a preparation method thereof. The preparation method comprises the following steps: 1. 13 to 18 weight portions of water is added with 0.2 to 0.5 weight portion of thickening agent under the stirring at the speed of 500 to 800 revolutions/minutes, is stirred and is fully dissolved; 2. 0.3 to 0.6 weight portion of a defoaming agent and 0.1 to 0.5 weight portion of wetting agent are sequentially added into the mixture and are evenly stirred; 3. 50 to 70 weight portions of powdered whiting and 7.5 to 15 weight portions of talcum powder are added into the mixture; under the rotational speed of 500 to 800 revolutions/minute, all composition are mixed; and if water is too little to stir the compositions evenly, 3 to 5 weight portions of an aqueous epoxy resin is added into the mixture, is stirred for 5 to 8 minutes till the fineness is between 30 and 40 microns at the rotational speed of 1,200 to1,500 revolutions/minute; 4. at the middle rotational speed, the residual amount of the aqueous epoxy resin is fully replenished to 15 to 20 weight portions totally and is evenly stirred; and 5. the mixture is continuously added with 0.1 to 0.2 weight portion of antiseptic and 3 to 5 weight portions of water, is stirred for 7 to 19 minutes at low speed, and is filtered to obtain the aqueous epoxy putty. According to weight ratio of 6 to 4, an aqueous epoxy curing agent and water are mixed to obtain a special matched curing agent; and according to weight ratio of 20 to 1, the aqueous epoxy putty and the curing agent are mixed for use. The aqueous epoxy putty can solve the problem that oily paint dissolves a polystyrene plate due to the fact that an aqueous epoxy primer is leaked to paint or the thickness of the painted primer does not meet the requirement, and can well decorate and protect a coating layer.
Description
Technical field
The present invention relates to a kind of coating, especially relate to a kind ofly be applied in skin or the external insulation system, with epoxy primer supporting aqueous epoxy putty and preparation method thereof and using method.
Background technology
In developed country, the applicating history in existing more than 60 year of External Thermal Insulation Technology for External, through practice for many years, confirm to adopt the building of outer heat preservation system, prolong work-ing life, and the lifetime expense reduces, simultaneously various outer decorative effects can be arranged, and the heat-insulating and energy-saving effect obviously is better than interior insulation, also can save lagging material about 40%, and overall economic efficiency is remarkable.Heat insulating work implements that the time in 10 years is arranged approximately outside China, the basic way of general outer heat insulating work is: expansion polyphenyl (EPS, XPS) plate thinly plastered external insulation system of outer wall, expansion polyphenyl (EPS) granule exterior wall outer heat preservation system and silicate thermal insulating coating etc., external wall outer insulation engineering rules JGJ144-200 regulation: under the condition of correct use and conventional maintenance, should not be less than 25 years the working life of external wall outer insulation engineering.Based on this reason, more user is partial on thermal insulation layer and selects high-grade paint to make the decoration of finish coat, so oiliness urethane of imitation aluminium plate effect, fluorine carbon lacquer is extensively promoted, but solvent in the solvent based coating such as N-BUTYL ACETATE, dimethylbenzene etc. can both dissolved polystyrene plate (EPS, XPS), also normal generation the in construction process owing to solvent infiltration is downwards dissolved, thereby destroyed the polyphenyl plate heat preserving layer, so in this case, water-base epoxy priming paint has obtained wideling popularize, because it both can solve oil-base paint dissolved polystyrene plate problem, can reach oiliness epoxy primer performance again.And water-base epoxy priming paint is also particularly important for the selection of putty layer, how to select the supporting with it supporting subject matter of present water-base epoxy priming paint product that becomes of a kind of putty.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of aqueous epoxy putty, this aqueous epoxy putty both can solve owing to water-base epoxy priming paint holiday or the thickness that is coated with do not reach the problem that requires to make oil-base paint dissolved polystyrene plate, can decorate well again and the protective surface coating; The present invention also provides the preparation method and the using method of this aqueous epoxy putty.
In order to solve the technical problem, the invention provides a kind of aqueous epoxy putty, make by the component of following weight proportion:
Thickening material: 0.2-0.5
Defoamer: 0.3-0.6
Wetting agent: 0.1-0.5
Water-ground limestone: 50-70
Talcum powder: 7.5-15
Aqueous epoxy resins: 15-20
Sanitas: 0.1-0.2
Water: 16-23;
Described aqueous epoxy resins is liquid aqueous Resins, epoxy, and solids content is 55 ± 1%; Epoxy equivalent (weight) is 950-1120.
Described aqueous epoxy resins is to adopt to contain polyoxyethylene polyoxypropylene segmental glycidyl ethers by dihydroxyphenyl propane chain extension and low-molecular-weight epoxy resin reaction, the polyoxyethylene polyoxypropylene segment is incorporated into the product that obtains in the Resins, epoxy molecular chain, and this product water and gylcol ether dilution just can obtain liquid described aqueous epoxy resin emulsion.
The preferred weight proportion of described each component is:
100,000 Natvosols as thickening material: 0.3
Defoamer: 0.4
Wetting agent: 0.3
Water-ground limestone: 60
Talcum powder: 10
Aqueous epoxy resins: 17
Sanitas: 0.15
Water: 17.5.
Described thickening material is 100,000 Natvosols.
Described water-ground limestone is 800 purpose water-ground limestones, and described talcum powder is 800 order talcum powder.
Described defoamer is a kind of silicone antifoam agent; Described wetting agent is a kind of organic silicon surfactant.
Described sanitas be a kind of by 5-chloro-2-methyl-4-isothiazoline-3-ketone the mixture formed of 2-methyl-4-isothiazoline-3-ketone and formaldehyde enriched material.
The present invention also provides a kind of preparation method of described aqueous epoxy putty, comprises the steps:
Step 1. adding entry 13-18 weight part in producing cylinder, is slowly to add thickening material 0.2-0.5 weight part under the state of 500-800r/min at mixing speed, stirs 10-15min and dissolves fully to thickening material;
Step 2. add defoamer 0.3-0.6, wetting agent 0.1-0.5 successively down by the stirring of first step rotating speed, stirred 10-15 minute, to even fully;
Step 3. add stopping composition water-ground limestone 50-70 weight part and talcum powder 7.5-15 weight part, high speed dispersion 20-30 minute, under the rotating speed of 500-800r/min, make the component of producing in the cylinder be mixed to uniform state, behind about 5-8min, change at a high speed to 1200-1500r/min, disperse more than 20 minutes, to fineness be the 30-40 micron;
Step 4. under the situation that reaches fineness requirement fully, change middling speed, add aqueous epoxy resins 15-20 weight part, stir 10-15min, make it fully evenly;
Step 5. continue to add sanitas 0.1-0.2 weight part, water 3-5 weight part, after stirring at low speed 7-10 minute, filter and package and promptly get described aqueous epoxy putty.
The present invention also provides the another kind of preparation method of described aqueous epoxy putty, comprises the steps:
Step 1. adding entry 13-18 weight part in producing cylinder, is slowly to add thickening material 0.2-0.5 weight part under the state of 500-800r/min at mixing speed, stirs 10-15min and dissolves fully to thickening material;
Step 2. add defoamer 0.3-0.6, wetting agent 0.1-0.5 successively down by the stirring of first step rotating speed, stirred 10-15 minute, to even fully;
Step 3. slowly add stopping composition water-ground limestone 50-70 weight part and talcum powder 7.5-15 weight part according to quantity, after adding, the component of producing in the cylinder is mixed, add aqueous epoxy resins: about 3-5 weight part, behind about 5-8min, change at a high speed to 1200-1500r/min, disperse more than 20 minutes, to fineness be the 30-40 micron;
Step 4. under the situation that reaches fineness requirement fully, change middling speed, the residual content of supplying aqueous epoxy resins stirs 10-15min, makes it fully evenly; The aqueous epoxy resins sum of described step 3 and step 4 is the 15-20 weight part;
Step 5. continue to add sanitas 0.1-0.2 weight part, water 3-5 weight part, after stirring at low speed 7-10 minute, filter and package and promptly get described aqueous epoxy putty.
The present invention also provides a kind of using method of described aqueous epoxy putty, it is characterized in that: described water-base epoxy sealing putty and special-purpose complete curing agent are mixed by weight 20:1, treat both slaking 10-15 minutes after, carry out knife-coat application and get final product; The complete curing agent of described special use is mixed by the component of following weight ratio:
Aqueous epoxy curing agent: 60
Water: 40.
Aqueous epoxy putty of the present invention, the aqueous epoxy resins in its component are film forming bases, and its application is directly connected to the quality of described epoxy putty film-forming properties.This resin has excellent sticking power, closure, alkali-resistivity and chemical-resistant.Paint film behind the film-forming can be with the sticking power of oiliness epoxy putty, and performances such as chemical resistant properties match in excellence or beauty, and wetting agent, defoamer, mainly is the workability that changes product.Add wetting agent and be because: aqueous epoxy putty is to be the dispersion system of medium with water, the surface tension of water is very big, be 7.2N/m2, for the surface tension that reduces system will add a certain amount of base material wetting agent, the system that makes is easy to wetting formation level and is penetrated into play good alkali resistant sealing process in the base material.Defoamer mainly has been the froth breaking effect, and the froth breaking mechanism of defoamer is to be penetrated on the foam film that is produced by system and constantly will to spread on film by wetting, the uneven and broken bubble of the surface tension that makes foam film.Filler is one of indispensable raw material in the putty prescription, is the assurance of the disposable brushing coating thickness of putty, also is the polishing performance that has improved coating to a certain extent, is the high soul material that contains the putty formula system admittedly.The addition of general filler is 50～70%.
Aqueous epoxy putty of the present invention can be applicable to styrofoam (EPS, XPS) external wall outer insulation with oiliness finish paint and water epoxy seal coat supporting putty layer and polished putty, the putty layer of the aqueous fluorine-carbon paint that perhaps is used to have relatively high expectations, the silicon third outer wall paint, elastic coating.Have following advantage:
1. not only have plurality of advantages such as the good and chemical resistance excellence of hardness height, the sticking power of solvent-borne type epoxy putty, the more important thing is the provide protection that has strengthened the p-poly-phenyl plate.Because the construction thickness of aqueous epoxy putty is thick more than water-base epoxy sealing alkali resistant priming paint, if then may produce because water-base epoxy priming paint holiday or brushing thickness low LCL are directed at the solvent of oiliness top coat layer is penetrated on the styrofoam without aqueous epoxy putty, and use aqueous epoxy putty just in time to remedy this defective.Thereby increased the work-ing life of this outer insulation application system.
2. the good and easily polishing of application property.
3. aqueous epoxy putty as dispersion medium, does not contain the volatile organic solvent of toluene, dimethylbenzene and so on water, can not cause environmental pollution, and the security in storage, transportation and the use is protected, and eliminates disaster hidden-trouble, meets current environmental protection requirement.
4. can in wet environment, use, the substrate surface of humidity is had good cohesiveness equally. the solvent-borne type epoxy putty requires very high for ground, concrete must very dryly could be constructed; Water-based ring putty then has coating preferably to moist concrete, and especially the concrete for new cast has good sticking power, as long as concrete is dry slightly and have certain rigidity and just can construct, and old base material is also had good recoatability.
5. the coating film gloss after solidifying is soft, and texture is better, and has unidirectional vapour transmission.Paint film defect such as can avoid the solvent-borne type epoxy putty to cause steam in the concrete to ooze out owing to paint film is too fine and close causing producing hollowing even peel off.
Embodiment
Each component of the present invention all adopts currently available products, and each component that aqueous epoxy putty embodiment selects and weight and part component model can be but listed product type in being not limited to show as shown in Table 1.
Table one
Aqueous epoxy resins WATERPOXY1455 is by being meant that being dispersed in water with particulate or drop form is the stable dispersion of preparing in the dispersion medium of external phase.It is to adopt to contain polyoxyethylene polyoxypropylene segmental glycidyl ethers by dihydroxyphenyl propane chain extension and low-molecular-weight epoxy resin reaction, the polyoxyethylene polyoxypropylene segment is incorporated in the Resins, epoxy molecular chain, and this product water and gylcol ether dilution just can obtain aqueous epoxy resin emulsion WATERPOXY1455.Its solids content is 55 ± 1%; Epoxy equivalent (weight) is 950-1120.
Wetting agent BYK346 is the aqueous systems organic silicon surfactant, and it makes surface tension reduce the wetting and levelling of ground that this just causes excellence strongly.This auxiliary agent can not produce foam stabilizationization, but can not influence recoatability.
Defoamer BYK022 is a silicone antifoam agent, excellent long-acting stability is arranged and to microvesicle utmost point effective force.
Thickening material is 100,000 Natvosols of high-adhesive, mainly is the working viscosity that increases aqueous epoxy putty.
Coarse whiting is a pigment extender, mainly plays a part to fill and reduce cost, and disposable batch of assurance of scraping film forming thickness of coating also is the polishing performance that has improved coating to a certain extent, and general addition in the putty prescription is 50～70%.
Talcum powder is a kind of Magnesium Silicate q-agent mineral, has three-dimensional crystalline structure, with its distinctive dried sliding property, hardness is little and have the fusing point height, electricity and heat is all had good insulation performance, expand and convergent force low, its dispersiveness height, strong covering power, oil suction and hydrophobicity are good.Thereby satiny degree makes greatly the easier and easier polishing of application property, coefficient of friction is little, chemical property is stable.Antiacid, alkali corrodes.
Sanitas HF-1 be a kind of by 5-chloro-2-methyl-4-isothiazoline-3-ketone the mixture formed of 2-methyl-4-isothiazoline-3-ketone and formaldehyde enriched material.
Below in conjunction with specific embodiment technical scheme of the present invention is described.
Embodiment 1:
Prepare aqueous epoxy putty master lacquer of the present invention:
Get each component according to " embodiment 1 " listed weight in the table one, the preparation method is according to following steps:
Step 1. in producing cylinder, add the water 13kg in the prescription, under the state that middling speed stirs, slowly add 100,000 Natvosol 0.2kg, stir 10-15min to 10 ten thousand Natvosols and dissolve fully.
Step 2. add defoamer BYK022:0.3kg, wetting agent BYK346:0.1kg according to weight proportion, stirred 10-15 minute, to even fully.
Step 3. add water-ground limestone 70kg, talcum powder 7.5kg, high speed dispersion 20-30 minute according to weight proportion, under the rotating speed of 500-800r/min, make it with auxiliary agent with water to uniform state, if it is inhomogeneous that water very little, stirs, can mend into aqueous epoxy resins WATERPOXY1455: about 3kg, behind about 5-8min, change at a high speed to 1200-1500r/min, disperse 20-30min, to fineness be the 30-40 micron, in this time range, disperse not reach this fineness, but the proper extension jitter time.
Step 4. under the situation that reaches fineness requirement fully, change middling speed, the residual content of supplying aqueous epoxy resins WATERPOXY1455: total amount need reach 15kg, stirs 10-15min, makes it fully evenly.
Step 5. add sanitas HF-1:0.2kg, water 3kg in the prescription, after stirring at low speed 7-10 minute, 100 mesh filter screens filter the aqueous epoxy putty that is present embodiment.
Prepare aqueous epoxy putty of the present invention special-purpose assorted solidifying agent arranged: with aqueous epoxy curing agent (the peaceful WATERPOXY751 of German section) and water according to weight proportion 6Kg:4Kg, add and produce in the container, stirring at low speed 7-10 minute, 300 mesh filter screens filter, pack, promptly obtain the complete curing agent of described aqueous epoxy putty.
Using method: described aqueous epoxy putty and described solidifying agent are mixed by weight 20:1, criticize after slaking 10-15 minute and scrape construction. seasoning 4-6 hour, promptly obtain the aqueous epoxy putty coating.The traditional performance detected result is shown in 1 corresponding data of case study on implementation in the table one.
Embodiment 2:
With each listed composition weight of " embodiment 2 " in the table one, repeat the foregoing description 1 described method (only each composition weight changes), prepare aqueous epoxy putty master lacquer; The component, proportioning and the preparation method that repeat solidifying agent among the embodiment 1 prepare the aqueous epoxy putty solidifying agent; To lead the lacquer and thinner mix according to 20:1, then according to embodiment 1 described method construct with drying after obtain the aqueous epoxy putty paint film.
The traditional performance detected result is shown in " embodiment 2 " corresponding data in the table two.
Embodiment 3:
With " embodiment 3 " listed each composition weight in the table one, repeat embodiment 1 described method (only each composition weight changes), prepare aqueous epoxy putty master lacquer; The component, proportioning and the preparation method that repeat solidifying agent among the embodiment 1 prepare the aqueous epoxy putty solidifying agent; To lead the lacquer and thinner mix according to 20:1, then according to embodiment 1 described method construct with drying after obtain the aqueous epoxy putty paint film.The traditional performance detected result is shown in " embodiment 3 " corresponding data in the table two.
Table two
| Sequence number | Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| 1 | Application property | Well | Excellent | Well |
| 2 | Grinability | Can polish by hand | The grinability excellence | Well |
| 3 | Cohesive strength/MPa | ≥0.6 | ≥0.6 | ≥0.6 |
| 4 | Water tolerance | 96 | 96 | 96 |
| 5 | The 5%NaoH aqueous solution | 126 | 144 | 168 |
| 6 | Thermotolerance | Good | Good | Good |
Claims (10)
1. aqueous epoxy putty, make by the component of following weight proportion:
Thickening material: 0.2-0.5
Defoamer: 0.3-0.6
Wetting agent: 0.1-0.5
Water-ground limestone: 50-70
Talcum powder: 7.5-15
Aqueous epoxy resins: 15-20
Sanitas: 0.1-0.2
Water: 16-23;
Described aqueous epoxy resins is liquid aqueous Resins, epoxy, and solids content is 55 ± 1%; Epoxy equivalent (weight) is 950-1120.
2. aqueous epoxy putty according to claim 1, it is characterized in that, described aqueous epoxy resins is to adopt to contain polyoxyethylene polyoxypropylene segmental glycidyl ethers by dihydroxyphenyl propane chain extension and low-molecular-weight epoxy resin reaction, the polyoxyethylene polyoxypropylene segment is incorporated into the product that obtains in the Resins, epoxy molecular chain, and this product water and gylcol ether dilution just can obtain liquid described aqueous epoxy resin emulsion.
3. aqueous epoxy putty according to claim 1 is characterized in that, described each composition weight proportioning is:
100,000 Natvosols as thickening material: 0.3
Defoamer: 0.4
Wetting agent: 0.3
Water-ground limestone: 60
Talcum powder: 10
Aqueous epoxy resins: 17
Sanitas: 0.15
Water: 17.5.
4. aqueous epoxy putty according to claim 1 and 2 is characterized in that, described thickening material is 100,000 Natvosols.
5. according to each described aqueous epoxy putty of claim 1～3, it is characterized in that described water-ground limestone is 800 purpose water-ground limestones, described talcum powder is 800 order talcum powder.
6. according to each described aqueous epoxy putty of claim 1～3, it is characterized in that described defoamer is a kind of silicone antifoam agent; Described wetting agent is a kind of organic silicon surfactant.
7. according to each described aqueous epoxy putty of claim 1～3, it is characterized in that, described sanitas be a kind of by 5-chloro-2-methyl-4-isothiazoline-3-ketone the mixture formed of 2-methyl-4-isothiazoline-3-ketone and formaldehyde enriched material.
8. the preparation method of the described aqueous epoxy putty of claim 1 comprises the steps:
Step 1. adding entry 13-18 weight part in producing cylinder, is slowly to add thickening material 0.2-0.5 weight part under the state of 500-800r/min at mixing speed, stirs 10-15min and dissolves fully to thickening material;
Step 2. add defoamer 0.3-0.6, wetting agent 0.1-0.5 successively down by the stirring of first step rotating speed, stirred 10-15 minute, to even fully;
Step 3. add stopping composition water-ground limestone 50-70 weight part and talcum powder 7.5-15 weight part, high speed dispersion 20-30 minute, under the rotating speed of 500-800r/min, make the component of producing in the cylinder be mixed to uniform state, behind about 5-8min, change at a high speed to 1200-1500r/min, disperse more than 20 minutes, to fineness be the 30-40 micron;
Step 4. under the situation that reaches fineness requirement fully, change middling speed, add aqueous epoxy resins 15-20 weight part, stir 10-15min, make it fully evenly;
Step 5. continue to add sanitas 0.1-0.2 weight part, water 3-5 weight part, after stirring at low speed 7-10 minute, filter and package and promptly get described aqueous epoxy putty.
9. the preparation method of the described aqueous epoxy putty of claim 1 comprises the steps:
Step 1. adding entry 13-18 weight part in producing cylinder, is slowly to add thickening material 0.2-0.5 weight part under the state of 500-800r/min at mixing speed, stirs 10-15min and dissolves fully to thickening material;
Step 2. add defoamer 0.3-0.6, wetting agent 0.1-0.5 successively down by the stirring of first step rotating speed, stirred 10-15 minute, to even fully;
Step 3. slowly add stopping composition water-ground limestone 50-70 weight part and talcum powder 7.5-15 weight part according to quantity, after adding, the component of producing in the cylinder is mixed, add aqueous epoxy resins: about 3-5 weight part, behind about 5-8min, change at a high speed to 1200-1500r/min, disperse more than 20 minutes, to fineness be the 30-40 micron;
Step 4. under the situation that reaches fineness requirement fully, change middling speed, the residual content of supplying aqueous epoxy resins stirs 10-15min, makes it fully evenly; The aqueous epoxy resins sum of described step 3 and step 4 is the 15-20 weight part;
Step 5. continue to add sanitas 0.1-0.2 weight part, water 3-5 weight part, after stirring at low speed 7-10 minute, filter and package and promptly get described aqueous epoxy putty.
10. using method of using claim 1 or 8 or 9 described aqueous epoxy putties, it is characterized in that: the complete curing agent of described water-base epoxy sealing putty with special use mixed by weight 20:1, after treating both slaking 10-15 minutes, carry out knife-coat application and get final product; The complete curing agent of described special use is mixed by the component of following weight ratio:
Aqueous epoxy curing agent: 60
Water: 40.
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| CN101993645B (en) * | 2010-11-22 | 2013-06-19 | 洛阳七维防腐工程材料有限公司 | Water-based heavy corrosion protection ceramic paint |
| CN103788829A (en) * | 2013-12-17 | 2014-05-14 | 江苏德威涂料有限公司 | High-anticorrosion epoxy undercoat for low-level substrate treatment |
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| CN105694575A (en) * | 2016-04-13 | 2016-06-22 | 腰正钊 | Carbon fiber reinforced composite honeycomb-structured putty and preparation and construction methods thereof |
| CN105860637A (en) * | 2016-04-28 | 2016-08-17 | 山西大同大学 | Waterborne environment-friendly multifunctional modifier for inner wall putty |
| CN106978004A (en) * | 2017-06-06 | 2017-07-25 | 合肥月煌新型装饰材料有限公司 | A kind of building decoration engineering inner wall putty and preparation method thereof |
| CN108165080A (en) * | 2017-12-11 | 2018-06-15 | 河北晨阳工贸集团有限公司 | Aqueous putty and preparation method thereof |
| CN111064128A (en) * | 2019-12-31 | 2020-04-24 | 青岛天源伟业保温防水工程有限公司 | Cable sleeve end plugging method |
| CN112094563A (en) * | 2020-08-19 | 2020-12-18 | 上海汉中涂料有限公司 | Water-based epoxy crack sealer |
| CN112662277A (en) * | 2020-12-24 | 2021-04-16 | 绵阳惠利环氧工程有限公司 | Exterior wall putty modified epoxy resin primer and application method thereof |
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