CN1124322C - Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process - Google Patents
Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process Download PDFInfo
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- CN1124322C CN1124322C CN 00100383 CN00100383A CN1124322C CN 1124322 C CN1124322 C CN 1124322C CN 00100383 CN00100383 CN 00100383 CN 00100383 A CN00100383 A CN 00100383A CN 1124322 C CN1124322 C CN 1124322C
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- paint
- polyethers
- base polyurethane
- isocyanic ester
- component water
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- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention discloses waterproof single-component asphalt-base polyurethane paint without needing a solvent, which is the wet-solidified paint synthesized by adding auxiliary materials of petroleum pitch, a solubilizer, stone powder, low-viscosity oil, a plasticizing agent, catalysts, etc. to a polyurethane prepolymer which is used as a main material and is synthesized with isocyanate with large molecular weight and polyether with large molecular weight. After coating on a surface, the waterproof paint is exposed to the moisture in the air so as to be solidified to form an integral seamless waterproof layer, and therefore, the waterproof paint is suitable for the construction for water resistance of underground engineering, bathrooms, roofs (with protective layers), non-potable water pools, etc. The present invention has the advantages of no toxin, no pollution, easy control, convenient construction and favorable effect of water resistance.
Description
Technical field
The invention belongs to construction industry polyurethane water-proof paint technical field.
Background technology
Polyurethane water-proof paint is a kind of synthetic macromolecular waterproof coating, can be divided into two-component type and one-pack type.Require weigh batching and in batching, mix quantitative volatile solvent during the two-component type construction, carry out brute force then and stir.The use of volatile solvent is easy to cause fire, and is very unfavorable to environment protection.One-pack type polyurethane water-proof paint construction is comparatively easy, need not mix stirring, and tackify not before the brushing has certain advantage.External existing multiple monocomponent polyurethane waterproof paint, its physicals is basic identical with two component products.The monocomponent polyurethane waterproof paint that U.S.'s " wound is high " company produces is exactly one of them.
At present, the domestic polyurethane water-proof paint of China all is two component solvent-borne type products basically, and is very unfavorable to environment protection.Along with the raising day by day of environmental requirement, the use of volatile solvent progressively is restricted in chemical building material production and the construction process, therefore is necessary to develop the polyurethane water-proof paint that helps decontamination and easy construction.
Summary of the invention
Purpose of the present invention just provides a kind of non-solvent single-component water-proof asphalt-base polyurethane paint that helps environment protection.Be viscous liquid before this coating brushing, the moisture content in the ingress of air of brushing back solidify to form the integral seamless waterproof layer, is suitable between underground works, lavatory bath, the waterproof construction at engineering positions such as roofing (matcoveredn), undrinkable water pond.
The present invention realizes by following scheme.Non-solvent single-component water-proof asphalt-base polyurethane paint is that polyethers synthetic base polyurethane prepolymer for use as with the isocyanic ester of macromolecule and macromolecule is as material of main part, by subsidiary material such as admixture petroleum pitch, solubilisation aids, stone flour, low viscosity oils, softening agent, catalyzer and a kind of wet-cured type coating of synthetic.In order to make product not have volatile solvent and to guarantee to have lower viscosity to be suitable for constructing operation, must earlier synthetic low viscous base polyurethane prepolymer for use as.In general, the polymer substance molecular weight is bigger, viscosity is also bigger, isocyanic ester and the polyethers bigger with molecular weight synthesize the physicals that can guarantee product, but to avoid occurring chain extending reaction in synthetic, otherwise product viscosity can increase, so the equivalence ratio of isocyanic ester and polyethers will be controlled at the degree greater than 3, so that suppress chain extending reaction; Next is strict control reaction temperature and reaction times, has less viscosity to guarantee the synthetic performed polymer.Because performed polymer and auxiliary material blending also can increase viscosity, therefore will be diluted with thinner.Selected thinner is a low viscosity oil.This thinner is nonpoisonous and tasteless non-volatile, can stably be dispersed in the urethane petroleum pitch system not separate out, and can soak into waterproof matrix preferably to guarantee adhesiveproperties.This thinner admixture 6% just can make product viscosity reach service requirements, realizes the application target of coating solvent free.
Description of drawings
Also the present invention will be further described for example below in conjunction with accompanying drawing.Fig. 1 is technological process of production figure of the present invention.Technical process of the present invention is: metering input polyethers and heating in a still, intensification adds the isocyanic ester that measures after reaching requirement, stirs then.Temperature rises to 85 ℃ and carries out insulation reaction; Other subsidiary material are metered in another still, heat up 105 ℃ to carry out vacuum hydro-extraction again; With mixing of materials in two stills, stir back metering packing (seeing accompanying drawing 1).
Embodiment
The present invention by the polyethers synthetic base polyurethane prepolymer for use as of the isocyanic ester of macromolecule and macromolecule as material of main part, by subsidiary material such as admixture petroleum pitch, solubilisation aids, stone flour, low viscosity oils, softening agent, catalyzer and a kind of wet-cured type coating of synthetic.Because petroleum pitch is two kinds of polymer substances that polarity is different with urethane, so can not be directly miscible.For guaranteeing that product stablizes not stratifiedly at lay up period, make petroleum pitch and these two kinds of materials of urethane on macroscopic view, reach the purpose of mixing homogeneous in the mode of mixing solubilisation aids.The solid powder sedimentation phenomenon that product takes place at lay up period is also solved by the admixture fine particle calcium carbonate except selecting the higher solid powder of fineness for use.Fine particle calcium carbonate can absorb a part of oily matter, and suspends therein, makes the whole retrogradation of material but does not increase viscosity, thereby prevent the powder sedimentation effectively, has guaranteed the operability of product construction.Polyurethane water-proof paint is a response type coating.The speed of response of chemical reaction is subjected to the influence of envrionment temperature.Usually temperature of reaction differs 10 ℃, and speed of response differs 2-4 doubly.In normally used envrionment temperature (35 ℃ to-5 ℃) variation range, have than big difference the set time of product, need a certain amount of catalyzer of admixture to adjust, but admixture catalyzer product summer stable upon storage relatively poor, therefore prescription should be divided into more than one, to adapt to the construction needs of Various Seasonal.Material mixture ratio of the present invention is:
(weight part)
Polyethers 30
Isocyanic ester 8
Petroleum pitch 20
Solubilisation aids 10
Stone flour 26
Low viscosity oil 6
Catalyzer 0.5 technology controlling and process of the present invention is:
1, polyethers metering feeds intake, and weighing error is less than ± 1.0Kg.
2, polyethers is preheating to 40 ℃, stops to heat up, and is metered into isocyanic ester, and weighing error is little
In ± 1.0Kg and stirring.
3, be warming up to 85 ℃, and thermal reacting for two hours, temperature control fluctuates less than ± 2 ℃.
4, other subsidiary material are metered in another still, are warming up to 105 ℃, vacuum hydro-extraction two hours.
5, sampling respectively in two stills in advance mixes the back under 85 ℃ of temperature, after insulation half an hour,
Measure NCO% (performed polymer) content.
6, be cooled to 50 ℃ after with mixing of materials in two stills, stir metering packing after half an hour.
The non-solvent single-component water-proof asphalt-base polyurethane paint warp of being produced by above-mentioned composition and engineering Detecting its tensile strength is 2.63Mpa, and percentage elongation is 480%. By the examination of multiple execution conditions, Easy construction of the present invention, good water-proof effect, non-volatility solvent, nontoxic pollution-free, production technology Simply, be easy to control, storage period is long, is conducive to environmental protection.
Non-solvent single-component water-proof asphalt-base polyurethane paint has the weighing of need not to be mixed, and material can connect The continuous input brushed the not characteristics of tackify of front coating, is suitable for the mechanically spraying construction.
Claims (2)
1, a kind of non-solvent single-component water-proof asphalt-base polyurethane paint, it is characterized in that this waterproof paint be polyethers synthetic base polyurethane prepolymer for use as by the isocyanic ester of macromolecule and macromolecule as material of main part, form by admixture petroleum pitch, solubilisation aids, stone flour, low viscosity oils, softening agent, catalyzer subsidiary material; The equivalence ratio of isocyanic ester and polyethers is controlled at the degree greater than 3; The proportioning of described waterproof paint material is:
(weight part)
Isocyanic ester 8
Polyethers 30
Petroleum pitch 20
Solubilisation aids 10
Stone flour 26
Low viscosity oil 6
Catalyzer 0.5
2, a kind of method that generates non-solvent single-component water-proof asphalt-base polyurethane paint as claimed in claim 1, it is characterized in that, in a still, measure the polyethers that feeds intake, weighing error is less than ± 1.0Kg, polyethers is preheating to 40 ℃, stop to heat up, be metered into isocyanic ester again, weighing error stirs then less than ± 1.0Kg; Temperature is risen to 85 ℃, and the temperature control fluctuation is less than ± 2 ℃ and thermal reacting for two hours; Other subsidiary material are metered in another still, are warming up to 105 ℃, carried out vacuum hydro-extraction two hours; In two stills, take a sample respectively earlier, mix the back and under 85 ℃ of temperature, be incubated half an hour, measure performed polymer content then; With mixing of materials in two stills, stir metering packing after half an hour after being cooled to 50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100383 CN1124322C (en) | 2000-01-20 | 2000-01-20 | Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100383 CN1124322C (en) | 2000-01-20 | 2000-01-20 | Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1306053A CN1306053A (en) | 2001-08-01 |
| CN1124322C true CN1124322C (en) | 2003-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00100383 Expired - Fee Related CN1124322C (en) | 2000-01-20 | 2000-01-20 | Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process |
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| CN (1) | CN1124322C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885665A (en) * | 2014-11-28 | 2016-08-24 | 天津市禹神建筑防水材料有限公司 | One-component polyurethane waterproof coating |
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| CN100422277C (en) * | 2003-12-12 | 2008-10-01 | 孙锡宁 | A kind of wet solidified anticorrosion coating of polyurethane epoxy coal tar |
| CN103773025A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Polyurethane asphalt material |
| CN105086807B (en) * | 2015-09-15 | 2017-07-04 | 南通万邦采涂料有限公司 | A kind of preparation method of the affine water-repellent paint of nano-ZnO asphalt polyurethane bicomponent |
| CN108047948A (en) * | 2017-11-21 | 2018-05-18 | 广西武宣金牌防水材料科技有限公司 | A kind of polyurethane-modified asphalt waterproofing paint and preparation method thereof |
| CN107903819A (en) * | 2017-11-21 | 2018-04-13 | 广西武宣金牌防水材料科技有限公司 | Polyurethane-modified asphalt waterproofing paint of antimicrobial form and preparation method thereof |
| CN107955534A (en) * | 2017-11-21 | 2018-04-24 | 广西武宣金牌防水材料科技有限公司 | Polyurethane-modified asphalt waterproofing paint of mould-proof-type and preparation method thereof |
| CN109439177A (en) * | 2018-10-19 | 2019-03-08 | 铁科创恒新材料科技有限公司 | A kind of concrete bridge deck no-solvent type polyurethane water-proof paint and preparation method thereof |
| CN110016290B (en) * | 2019-03-15 | 2021-03-23 | 河北宇阳泽丽防水材料有限公司 | Normal-temperature rapid-reaction type non-cured rubber asphalt waterproof coating and application thereof |
| CN111548722B (en) * | 2020-06-22 | 2023-10-31 | 安徽三棵树涂料有限公司 | Domestic drinking water contact-level polyurethane waterproof coating and preparation method thereof |
| CN112282221A (en) * | 2020-11-25 | 2021-01-29 | 中铁二十局集团第四工程有限公司 | Roof waterproof structure and construction method thereof |
| CN115433519A (en) * | 2022-10-10 | 2022-12-06 | 宁夏恒耀建设工程有限公司 | Waterproof infiltration formula for hydraulic engineering and construction method thereof |
-
2000
- 2000-01-20 CN CN 00100383 patent/CN1124322C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885665A (en) * | 2014-11-28 | 2016-08-24 | 天津市禹神建筑防水材料有限公司 | One-component polyurethane waterproof coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1306053A (en) | 2001-08-01 |
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