CN101434818A - Isocyanate modified aqueous polymer waterproof coating material - Google Patents
Isocyanate modified aqueous polymer waterproof coating material Download PDFInfo
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- CN101434818A CN101434818A CNA2007100314723A CN200710031472A CN101434818A CN 101434818 A CN101434818 A CN 101434818A CN A2007100314723 A CNA2007100314723 A CN A2007100314723A CN 200710031472 A CN200710031472 A CN 200710031472A CN 101434818 A CN101434818 A CN 101434818A
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- waterproof coating
- coating material
- isocyanate modified
- modified aqueous
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Abstract
The invention discloses an isocyanate modified water-based polymer waterproof coating, comprising a component A and a component B, wherein, the component A comprises a water solution containing the polymer of hydroxyl group or a dispersion mixture; and the component B comprises isocyanate polymer. The invention also discloses a preparation method of the waterproof coating which comprises the steps as follows: (1) the component A and the component B are respectively prepared; (2) according to the weight ratio of 100:5-20, the component A and the component B are mixed so as to carry out the crosslinking reaction; and (3) the isocyanate modified water-based polymer waterproof coating is prepared. The isocyanate modified water-based polymer waterproof coating has the advantages of being widely applied to the waterproofing and surface protection of materials such as wood, bamboos, bakelite, fiber substrate, cement, gypsum board, unsaturated polyester, and the like.
Description
Technical field
The present invention relates to the chemical industry technology, be specifically related to a kind of isocyanate modified aqueous polymer waterproof coating material that mixes, can be used for timber and other fibrous substrates, cement material, plasterboard waterproof by A component and B component.
Background technology
Polymer waterproof coating material mainly is made up of vinylformic acid or SBR, EVA and mineral compound component in the market.This series products has intensity height, no seam, strong, the cold construction of bonding force, characteristics such as nontoxic.But the defective that obviously has poor water resistance in the practice process after using, suction, swelling can occur, return white, strength degradation and influence waterproof effect in underground works.Do not have a kind of aqueous polymer waterproof coating material both to can be used for cement flooring or metope waterproof at present and can be used for simultaneously waterproofing wood, fibrous substrate waterproof yet.In the indoor and outdoor decoration engineering, often need to carry out waterproof, mildew-resistant processing to following closely in the core-board on metope and ground.If adopt paint, then contain virose organic volatile and discharge, harmful to human body and environment.
Polyurethane water-proof paint in the market, mainly be contain solvent type.Be used for waterproof construction, the water ratio that requires basic unit is less than 9%, otherwise can separate with basic unit and come off.Have a strong impact on effect, but in building site basic unit drying difficulty, basement engineering especially, underground waterproof basic unit drying is difficulty more.
Summary of the invention
At the existing existing above-mentioned deficiency of coating that discharges water, the objective of the invention is, isocyanate modified aqueous polymer waterproof coating material that a kind of water resistance is good, tensile strength is high, tension set is good, curing speed is fast and preparation method thereof is provided.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is:
Isocyanate modified aqueous polymer waterproof coating material is characterized in that, it includes A component and B component; Described component A comprises one of the aqueous solution of the polymkeric substance that contains hydroxyl or dispersion aqueous mixture of hydroxyl polymer-containing at least; Described B component comprises isocyanate polymer at least; Described A component and B component weight ratio are 100:5～20.
Wherein said A component also comprises polyvinyl alcohol water solution.
Wherein said A component also comprises the emulsion of vinyl acetate or ethylene-vinyl acetate copolymer or the emulsion of ethylene-vinyl acetate-vinyl chloride copolymer.
Wherein said A component also comprises the butadiene polymer emulsion.
Wherein said A component also comprises the emulsion and the butadiene polymer emulsion of vinyl acetate or ethylene-vinyl acetate copolymer or ethylene-vinyl acetate-vinyl chloride copolymer.
Wherein said A component comprises plasticizer, filler, mould inhibitor, defoamer.
Wherein said A component comprises anionic or nonionic emulsifier.
Wherein said A component also comprises one or more anti-heavy, sag prevention auxiliary agents.
Wherein said A component also comprises one or more leveling auxiliary agents.
The preparation method of aforementioned isocyanate modified aqueous polymer waterproof coating material, it comprises the steps:
(1) prepares A component and B component respectively;
(2), make it that crosslinking reaction take place with A component and B component weight ratio thorough mixing according to 100:5～20;
(3) make isocyanate modified aqueous polymer waterproof coating material.
The prepared isocyanate modified aqueous polymer waterproof coating material advantage of the present invention is:
1. the waterproof that not only can be used for cement, metope and gypsum board simultaneously but also can be used for the waterproof of timber, bamboo wood, core-board, clamping plate and other fiber containing base material.A kind of product has versatility, is particularly well-suited in indoor and outdoor decoration.
2. solve that in the market polyurethane water-proof paint contains that dimethylbenzene etc. is poisonous, organic solvent volatile matter and the high problem of free TDI.Waterproof paint A component of the present invention is a water-latex type, does not contain the dimethylbenzene organic volatile; Do not contain free formaldehyde; The B component is selected 100% solid content isocyanate polymer for use, and when using polymeric MDI, then toxicity is more much lower than TDI class urethane.
3. solve the problem of the water-repellancy difference of polymer waterproof coating material in the market.Form network-like polyurethane coating film after A component of the present invention and the B component mixing application, have good resistance to boiling water.More than general polymer waterproof paint water-tolerant, the pond, vault, the outdoor water-proof engineering that are particularly suitable for contacting with water are for a long time used.
The main chemical reactions that the present invention relates to is as follows:
1. carbimide and hydroxy polymer reaction
OCN-RNCO+HO-R′→R′O-CONH-R-NHCO-OR′
2. the reaction of isocyanic ester and water:
2RNCO+H
2O→RNHCONHR+CO
2
3. isocyanic ester and carboxyl polymer reaction:
R-NCO+R′-COOH→R-NH-CO-R′+CO
2
The present invention is further described below in conjunction with embodiment.
Embodiment
Embodiment: the isocyanate modified aqueous polymer waterproof coating material that present embodiment provides, it includes A component and B component; Described component A comprises one of the aqueous solution of the polymkeric substance that contains hydroxyl or dispersion aqueous mixture of hydroxyl polymer-containing at least; Described B component comprises isocyanate polymer at least; Described A component and B component weight ratio are 100:5～20.Concrete:
The A component comprises the polymer emulsion of hydroxyl or dispersed mixture, filler, tensio-active agent, defoamer, mildew-resistant, anti-settling agent, plasticizer, flow agent; Hydroxy-containing component in the A component is the PVA aqueous solution or contains PVAC or the divinyl emulsions such as EVA or ethylene-vinyl acetate-vinyl chloride copolymer and SBR that PVA makes emulsifying agent; PVA selects polymerization degree 300-2500 for use, and saponification deg 80-98% is for well, and low polymerization degree water-repellancy and speed of response are more bad, can be PVA is soluble in water when making with hot water, and usage quantity can be 3-10%.
Described B component adopts one of polymeric MDI, HDI or polymerization TDI; But the employing polymeric MDI reacts comparatively quick, fast drying, and free TDI is few, but easy xanthochromia, for the bottom waterproof paint, the useful cement protective layer in upper strata, and do not affect the appearance.
Tensio-active agent can be joined the A component, can make easily emulsification in water of isocyanate polymer in the B component, thereby make isocyanic ester hydroxyl reaction easily and in the A component, tensio-active agent can be anionic or nonionic surface active agent.
Consider to make and use froth breaking and deaeration requirement arranged, must consider to use the defoamer of 0.1-0.5%.Consider the levelling effect of requirement of filming of use, must consider to use the flow agent of 0.1-0.5%.
In filler adding, storage and the transportation and use in the A component, certain preventing is heavy, the selection of the auxiliary agent of sag prevention is used, and also is necessary.Usually these auxiliary agents have aerosil, Mierocrystalline cellulose, diatomite, reach wilkinite etc.General add-on is 0.1-1%.
The A component is mainly the raw material and the inorganic raw material of water-based, contains easily to make the putrescible microorganism of A component, and in order to prolong the stability of storage, the formaldehydeless class sanitas that can add 0.1-0.5% is restrained easily corruption microorganism.
Polyvinyl acetate (PVA) and ethylene vinyl acetate in the A component, and contain the emulsion of divinyl such as SBR etc., all cement, metope and fibrous base material there are good adhesive, they also are the filmogens of A component.Add-on is 10-50%, and the composite crosslinking of they and PVA fellowship and isocyanic ester forms the waterproof polyurethane to fiber materials such as cement basal plane and timber.
Behind A component and the B component cross-linking reaction, the available plasticizer of filming improves plasticity, and addition can be 1-10%, and plasticizer can use DOP, DBP etc.DBP is than the difficult migration of DOP, and the adding of plasticizer has minimal effect to the surface drying of filming, and surface drying can be slow, and add-on overbrushing film can be more pliable and tougher.
The use of filler also is necessary in the A component, and appropriate filler increases water-repellancy, coating strength, and suitable opacifying power, and filler can be lime carbonate, talcum powder, kaolin, barium sulfate, titanium dioxide etc., filler uses cement also to be suitable method.The employing of cement can with polymer interpenetration network, adopt cement of high index better usually.When using cement to make filler, independent packaging from the A component separately, when using application, the side adds in the A component.
The add-on of filler is that 5-50% is suitable in the A component.
In the A component, add, can give A component shades of colour and make various chromatic waterproof paints such as red iron oxide, iron oxide black, iron oxide yellow, titanium dioxide and other mineral dye.And can increase the alkali-resistivity of filming, general addition is 3-15%.
A component integral formula sees the following form:
The B component adopts polymeric MDI.
Claims (10)
1. isocyanate modified aqueous polymer waterproof coating material is characterized in that, it includes A component and B component; Described component A comprises one of the aqueous solution of the polymkeric substance that contains hydroxyl or dispersion aqueous mixture of hydroxyl polymer-containing at least; Described B component comprises isocyanate polymer at least; Described A component and B component weight ratio are 100:5～20.
2. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that, wherein said A component also comprises polyvinyl alcohol water solution.
3. isocyanate modified aqueous polymer waterproof coating material according to claim 1, it is characterized in that wherein said A component also comprises the emulsion of vinyl acetate or ethylene-vinyl acetate copolymer or the emulsion of ethylene-vinyl acetate-vinyl chloride copolymer.
4. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that, wherein said A component also comprises the butadiene polymer emulsion.
5. isocyanate modified aqueous polymer waterproof coating material according to claim 1, it is characterized in that wherein said A component also comprises the emulsion and the butadiene polymer emulsion of vinyl acetate or ethylene-vinyl acetate copolymer or ethylene-vinyl acetate-vinyl chloride copolymer.
6. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that, wherein said A component comprises plasticizer, filler, mould inhibitor, defoamer.
7. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that wherein the A component comprises anionic or nonionic emulsifier.
8. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that, wherein said A component also comprises one or more anti-heavy, sag prevention auxiliary agents.
9. isocyanate modified aqueous polymer waterproof coating material according to claim 1 is characterized in that, wherein said A component also comprises one or more leveling auxiliary agents.
10. according to preparation method, it is characterized in that it comprises the steps: according to the described isocyanate modified aqueous polymer waterproof coating material of claim 1
(1) prepares A component and B component respectively;
(2), make it that crosslinking reaction take place with described A component and B component weight ratio thorough mixing according to 100:5～20;
(3) make isocyanate modified aqueous polymer waterproof coating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100314723A CN101434818A (en) | 2007-11-15 | 2007-11-15 | Isocyanate modified aqueous polymer waterproof coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100314723A CN101434818A (en) | 2007-11-15 | 2007-11-15 | Isocyanate modified aqueous polymer waterproof coating material |
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| Publication Number | Publication Date |
|---|---|
| CN101434818A true CN101434818A (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100314723A Pending CN101434818A (en) | 2007-11-15 | 2007-11-15 | Isocyanate modified aqueous polymer waterproof coating material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925081A (en) * | 2012-11-12 | 2013-02-13 | 抚顺哥俩好化学有限公司 | High-strength double-component laminating glue, and preparation method thereof |
| CN103518002A (en) * | 2011-04-08 | 2014-01-15 | 普兰西欧洲股份公司 | Tubular target having protective device |
| CN107201691A (en) * | 2017-06-26 | 2017-09-26 | 广东阿博特数码纸业有限公司 | The backing material and application method of a kind of paper grade (stock) |
| CN113185936A (en) * | 2021-05-06 | 2021-07-30 | 万华化学集团股份有限公司 | Preparation and application of formaldehyde-free veneering glue for artificial board |
-
2007
- 2007-11-15 CN CNA2007100314723A patent/CN101434818A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518002A (en) * | 2011-04-08 | 2014-01-15 | 普兰西欧洲股份公司 | Tubular target having protective device |
| CN109609917A (en) * | 2011-04-08 | 2019-04-12 | 普兰西欧洲股份公司 | Tubular target including protective device |
| US10978279B2 (en) | 2011-04-08 | 2021-04-13 | Plansee Se | Tubular target having a protective device |
| CN102925081A (en) * | 2012-11-12 | 2013-02-13 | 抚顺哥俩好化学有限公司 | High-strength double-component laminating glue, and preparation method thereof |
| CN107201691A (en) * | 2017-06-26 | 2017-09-26 | 广东阿博特数码纸业有限公司 | The backing material and application method of a kind of paper grade (stock) |
| CN113185936A (en) * | 2021-05-06 | 2021-07-30 | 万华化学集团股份有限公司 | Preparation and application of formaldehyde-free veneering glue for artificial board |
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Open date: 20090520 |