CN105315878B - Solvent free mono-composition poyurethane water-proof paint - Google Patents
Solvent free mono-composition poyurethane water-proof paint Download PDFInfo
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Abstract
The present invention relates to a kind of solvent free mono-composition poyurethane water-proof paint in field of waterproof materials, its formula is：By weight percentage, polyethers EP 330N5 ~ 10%, polyethers DL 2000D30 ~ 40%, methyl diphenylene diisocyanate 20 ~ 25%, make epoxy resin 10 ~ 15%, age resistor 0.1 ~ 0.2% by oneself, ultra-violet absorber 0.1 ~ 0.5%, defoamer 0.01 ~ 0.15%, anti-settling agent 0.1 ~ 0.5%, dispersant 0.1 ~ 0.5%, catalyst 0.1 ~ 0.15%, pigment 0.5 ~ 3%, kaolin 10 ~ 15%, talcum powder 5 ~ 10%.Instant invention overcomes existing single-component polyurethane water-proof paint to contain plasticizer and solvent, injure human body, pollute environment, the defects of film dynamic performance reduces is applied after long-term use, the solvent free mono-composition poyurethane water-proof paint of offer is ageing-resistant, service life length, environmentally friendly, cementability, the water-tolerant of coating, it is good to apply film dynamic performance.
Description
Technical field
The present invention relates to field of waterproof materials, specifically a kind of solvent free mono-composition poyurethane water-proof paint.
Background technology
Existing single-component polyurethane water-proof paint adds plasticizer and solvent, and solids content is relatively low, typically all uses
The larger toluene di-isocyanate(TDI) of toxicity, it is larger to human injury, and the volatilization environmental pollution of solvent in the curing process
It is larger.To improve product strength, the content of isocyanates need to be increased；But with the increase of isocyanate content, coating it is flexible
Property reduce, fragility increase.It is that the pliability of coating, but adding with plasticizer are ensured using addition plasticizer in the prior art
Enter, the intensity of coating declines, it is difficult to ensures the intensity of coating；And film long-term use post-plasticization agent can progressively migrate out coating,
Substantially reduce the mechanical property of film.
The content of the invention
The purpose of the present invention is to overcome existing single-component polyurethane water-proof paint to contain plasticizer and solvent, injures human body,
Environment is polluted, the defects of film dynamic performance reduces is applied after long-term use of, a kind of ageing-resistant, service life length is provided for people, it is right
It is environment-friendly, cementability, the water-tolerant of coating, apply the good solvent free mono-composition poyurethane water-proof paint of film dynamic performance.
The purpose of the present invention is realized by following technical proposals：
The formula of solvent free mono-composition poyurethane water-proof paint of the present invention is：
By weight percentage, polyethers EP-330N5 ~ 10%, polyethers DL-2000D30 ~ 40%, diphenylmethane diisocyanate
Ester 20 ~ 25%, self-control epoxy resin 10 ~ 15%, age resistor 0.1 ~ 0.2%, ultra-violet absorber 0.1 ~ 0.5%, defoamer 0.01 ~
0.15%, anti-settling agent 0.1 ~ 0.5%, dispersant 0.1 ~ 0.5%, catalyst 0.1 ~ 0.15%, pigment 0.5 ~ 3%, kaolin 10 ~ 15%,
Talcum powder 5 ~ 10%.
The preparation method of solvent free mono-composition poyurethane water-proof paint of the present invention is：
Polyethers, self-control epoxy resin, anti-settling agent and dispersant are added in reactor by above-mentioned formula, stirring is warming up to 60
DEG C, kaolin, talcum powder and pigment are gradually added, is warming up to 120 ± 2 DEG C, is dehydrated 3 hours；It is cooled to 85 ± 2 DEG C, then by two
Methylenebis phenyl isocyanate is added dropwise to reactor, is reacted 2 hours at 80 ± 2 DEG C, adds catalyst, and it is small to be further continued for reaction 0.5
When, less than 70 DEG C are cooled to, adds age resistor, ultra-violet absorber and defoamer, discharge packaging after stirring.
In such scheme, the self-control epoxy resin, its preparation method is：
By the bisphenol-A of 5 parts by weight（BPA）With the epoxychloropropane of 14 parts by weight（ECH）Add in dissolution kettle, at 45 DEG C
Stirring 1 hour, the sodium hydroxide of 0.07 parts by weight is added, is stirred 4 hours at 60 ~ 62 DEG C；Then the material in dissolution kettle is sent
Enter reactor, under 60 ~ 65 DEG C, vacuum 20kPa, with the flow of 0.75 parts by weight/hour, it is 50% to add 3 parts by weight concentration
The sodium hydrate aqueous solution of percentage by weight；Adding and 70 DEG C are warming up to after the completion of alkali, be dehydrated 10 minutes, vacuum brings up to 18kPa,
It is persistently overheating to 130 DEG C, obtain crude resin；Crude resin is transferred to refining kettle, is stirred evenly with the hexone of 5.4 parts by weight,
Add the parts by weight of water 1.6, be then hydrogenated with the parts by weight of sodium oxide molybdena 0.965,45 minutes time, after adding sodium hydroxide, at 86 ~ 88 DEG C
Two and one-half- hours are incubated, then the parts by weight of methylate isobutyl ketone 4.5, add the parts by weight of water 5.5, stir 10 minutes, static 30 points
Clock；Liquid separation, wash, filtering, derived from epoxy resin processed.
Through being formulated contrast verification, using the MPa of single-component polyurethane water-proof paint tensile strength 12.8 of plasticizer, at heat
Reason elongation at break 404%, adhesion strength 2.3Mpa, and the solvent free mono-composition poyurethane water-proof paint tensile strength of the present invention
14.5 MPa, it is heat-treated elongation at break 370%, adhesion strength 4.3Mpa, hence it is evident that improve caking property of the coating to basic unit, apply
The tensile strength of material is not reduced, and elongation at break is not also decreased obviously after heat treatment.
The solvent free mono-composition poyurethane water-proof paint of the present invention does not add any solvent, in use without volatilizable
Thing is produced, and environment will not be polluted；Plasticizer is replaced with self-control epoxy resin, solids content is high, and fugitive constituent is low, avoids
The migration of long-term use of post-plasticization agent reduces coating property.Toxicity is replaced using the less methyl diphenylene diisocyanate of toxicity
Larger toluene di-isocyanate(TDI), removes crosslinking agent, and film is substantially reduced by the moisture-curable film forming among absorption air
Injury to human body.Intensity is high, is adapted to key project waterproof construction.It is rich in color, it can be mixed colours according to concrete engineering application demand.
Therefore, instant invention overcomes existing single-component polyurethane water-proof paint to contain plasticizer and solvent, injures human body, dirty
Contaminate environment, the defects of film dynamic performance reduces applied after long-term use of, there is provided solvent free mono-composition poyurethane water-proof paint it is resistance to old
Change, service life length, environmentally friendly, cementability, the water-tolerant of coating, it is good to apply film dynamic performance.
Embodiment
The invention is further illustrated by the following examples, and the present invention is not limited only to the embodiment.
Embodiment one
The formula of the solvent free mono-composition poyurethane water-proof paint of this example is：
By weight percentage, polyethers EP-330N：5%, polyethers DL-2000D：40%, methyl diphenylene diisocyanate：
20%, make epoxy resin by oneself：10%, age resistor：0.1%, ultra-violet absorber：0.1%, defoamer：0.01%, anti-settling agent：0.1%,
Dispersant：0.5%, catalyst：0.1%, pigment：3%, kaolin：15%, talcum powder：6.09%.
Age resistor is age resistor 168, and ultra-violet absorber is ultra-violet absorber UV531, and defoamer is defoamer 6800,
Anti-settling agent is anti-settling agent CP-88, and catalyst is dibutyl tin laurate T-12；Pigment is iron oxide.
Preparation method is：
Polyethers, self-control epoxy resin, anti-settling agent and dispersant are added in reactor by above-mentioned formula, stirring is warming up to 60
DEG C, kaolin, talcum powder and pigment are gradually added, is warming up to 120 ± 2 DEG C, is dehydrated 3 hours；It is cooled to 85 ± 2 DEG C, then by two
Methylenebis phenyl isocyanate is added dropwise to reactor, is reacted 2 hours at 80 ± 2 DEG C, adds catalyst, and it is small to be further continued for reaction 0.5
When, less than 70 DEG C are cooled to, adds age resistor, ultra-violet absorber and defoamer, discharge packaging after stirring.
Self-control epoxy resin preparation method be：
By the bisphenol-A of 5 parts by weight（BPA）With the epoxychloropropane of 14 parts by weight（ECH）Add in dissolution kettle, at 45 DEG C
Stirring 1 hour, the sodium hydroxide of 0.07 parts by weight is added, is stirred 4 hours at 60 ~ 62 DEG C；Then the material in dissolution kettle is sent
Enter reactor, under 60 ~ 65 DEG C, vacuum 20kPa, with the flow of 0.75 parts by weight/hour, it is 50% to add 3 parts by weight concentration
The sodium hydrate aqueous solution of percentage by weight；Adding and 70 DEG C are warming up to after the completion of alkali, be dehydrated 10 minutes, vacuum brings up to 18kPa,
It is persistently overheating to 130 DEG C, obtain crude resin；Crude resin is transferred to refining kettle, is stirred evenly with the hexone of 5.4 parts by weight,
Add the parts by weight of water 1.6, be then hydrogenated with the parts by weight of sodium oxide molybdena 0.965,45 minutes time, after adding sodium hydroxide, at 86 ~ 88 DEG C
Two and one-half- hours are incubated, then the parts by weight of methylate isobutyl ketone 4.5, add the parts by weight of water 5.5, stir 10 minutes, static 30 points
Clock；Liquid separation, wash, filtering, derived from epoxy resin processed.
Embodiment two
The formula of the solvent free mono-composition poyurethane water-proof paint of this example is：
By weight percentage, polyethers EP-330N：10%, polyethers DL-2000D：30%, methyl diphenylene diisocyanate：
25%, make epoxy resin by oneself：15%, age resistor：0.2%, ultra-violet absorber：0.5%, defoamer：0.15%, anti-settling agent：0.5%,
Dispersant：0.1%, catalyst：0.15%, pigment：0.5%, kaolin：10%, talcum powder：7.9%.
Age resistor is age resistor 1010, and pigment is phthalocyanine blue.
Remaining is the same as embodiment one.
Embodiment three
The formula of the solvent free mono-composition poyurethane water-proof paint of this example is：
By weight percentage, polyethers EP-330N：8%, polyethers DL-2000D：33.5%, diphenylmethane diisocyanate
Ester：21%, make epoxy resin by oneself：10%, age resistor：0.2%, ultra-violet absorber：0.15%, defoamer：0.15%, anti-settling agent：
0.3%, dispersant：0.1%, catalyst：0.1%, pigment：1.5%, kaolin：15%, talcum powder：10%.
Pigment is iron oxide yellow.
Remaining is the same as embodiment one.
Example IV
The formula of the solvent free mono-composition poyurethane water-proof paint of this example is：
By weight percentage, polyethers EP-330N：10%, polyethers DL-2000D：35%, methyl diphenylene diisocyanate：
25%, make epoxy resin by oneself：10%, age resistor：0.2%, ultra-violet absorber：0.3%, defoamer：0.1%, anti-settling agent：0.5%,
Dispersant：0.5%, catalyst：0.1%, pigment：3%, kaolin：10.3%, talcum powder：5%.
Remaining is the same as embodiment one.
Claims (1)
1. a kind of solvent free mono-composition poyurethane water-proof paint, it is characterised in that formulation for coating material is：
By weight percentage, polyethers EP-330N5 ~ 10%, polyethers DL-2000D30 ~ 40%, methyl diphenylene diisocyanate 20
~ 25%, self-control epoxy resin 10 ~ 15%, age resistor 0.1 ~ 0.2%, ultra-violet absorber 0.1 ~ 0.5%, defoamer 0.01 ~ 0.15%,
Anti-settling agent 0.1 ~ 0.5%, dispersant 0.1 ~ 0.5%, catalyst 0.1 ~ 0.15%, pigment 0.5 ~ 3%, kaolin 10 ~ 15%, talcum powder 5
~10%；
It is described self-control epoxy resin preparation method be：
The bisphenol-A of 5 parts by weight and the epoxychloropropane of 14 parts by weight are added in dissolution kettle, stirred 1 hour at 45 DEG C, is added
The sodium hydroxide of 0.07 parts by weight, stir 4 hours at 60 ~ 62 DEG C；Then the material in dissolution kettle is sent into reactor, 60 ~
65 DEG C, under vacuum 20kPa, with the flow of 0.75 parts by weight/hour, add the hydrogen that 3 parts by weight concentration are 50% percentage by weight
Aqueous solution of sodium oxide；Add and 70 DEG C are warming up to after the completion of alkali, be dehydrated 10 minutes, vacuum brings up to 18kPa, persistently overheating to 130
DEG C, obtain crude resin；Crude resin is transferred to refining kettle, is stirred evenly with the hexone of 5.4 parts by weight, adds the parts by weight of water 1.6,
Then the parts by weight of sodium oxide molybdena 0.965 are hydrogenated with, 45 minutes time, after adding sodium hydroxide, it is small that two and half are incubated at 86 ~ 88 DEG C
When, then the parts by weight of methylate isobutyl ketone 4.5, add the parts by weight of water 5.5, stir 10 minutes, static 30 minutes；Liquid separation, washing,
Filtering, derived from epoxy resin processed；
The preparation method of the solvent free mono-composition poyurethane water-proof paint is：
Polyethers, self-control epoxy resin, anti-settling agent and dispersant are added in reactor by formula, stirring is warming up to 60 DEG C, progressively
Kaolin, talcum powder and pigment are added, is warming up to 120 ± 2 DEG C, is dehydrated 3 hours；It is cooled to 85 ± 2 DEG C, then by diphenyl methane
Diisocyanate is added dropwise to reactor, is reacted 2 hours at 80 ± 2 DEG C, adds catalyst, is further continued for reaction 0.5 hour, is cooled to
Less than 70 DEG C, age resistor, ultra-violet absorber and defoamer are added, discharge packaging after stirring.
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| CN107286835B (en) * | 2016-04-01 | 2019-10-29 | 新疆科能防水防护技术股份有限公司 | A kind of monocomponent high elastic silylated polyurethane water-repellent paint and its production method |
| CN106243979A (en) * | 2016-08-26 | 2016-12-21 | 江苏格桑花涂料有限公司 | A kind of PU EP type dam water-repellent paint and preparation method thereof |
| CN107722228A (en) * | 2017-09-07 | 2018-02-23 | 河南金拇指防水科技股份有限公司 | A kind of superpower caking property polyurethane waterproof material manufacture method and waterproof material |
| CN108102058B (en) * | 2018-01-11 | 2020-09-11 | 山东扬名新材料技术有限公司 | Single-component solvent-free self-leveling polyurethane elastomer |
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| CN111087917A (en) * | 2019-12-31 | 2020-05-01 | 武汉楚辰新材料科技有限公司 | Solvent-free single-component polyurethane waterproof coating and preparation method thereof |
| CN112409911A (en) * | 2020-11-27 | 2021-02-26 | 四川蜀羊防水材料有限公司 | Polyurethane waterproof coating capable of being used on wet base surface and preparation method thereof |
| CN113444442A (en) * | 2021-07-29 | 2021-09-28 | 福建省三棵树新材料有限公司 | Near-zero VOC solvent-free MDI system single-component polyurethane waterproof coating and preparation thereof |
| CN113652159A (en) * | 2021-07-29 | 2021-11-16 | 南通科顺建筑新材料有限公司 | Epoxy resin modified polyurethane waterproof coating and preparation method and application thereof |
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| CN102816137A (en) * | 2011-06-10 | 2012-12-12 | 中国石油化工集团公司 | Preparation method of bisphenol A liquid epoxy resin |
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| CN100528920C (en) * | 2004-08-05 | 2009-08-19 | 复旦大学 | Process for preparing high solid single component polyurethane elastor and its use |
| CN104293157A (en) * | 2014-09-16 | 2015-01-21 | 潍坊市宏源防水材料有限公司 | Solvent-free single-component polyurethane waterproof coating and production process thereof |
| CN104497832A (en) * | 2014-11-03 | 2015-04-08 | 武汉市恒星防水材料有限公司 | Single-composition polyurethane waterproof paint and preparation method thereof |
| CN104974656B (en) * | 2015-06-26 | 2017-10-27 | 中科院广州化学有限公司南雄材料生产基地 | Moisturecuring one-component polyacrylate modified polyurethane water-repellent paint and its preparation |
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| CN102816137A (en) * | 2011-06-10 | 2012-12-12 | 中国石油化工集团公司 | Preparation method of bisphenol A liquid epoxy resin |
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| 水性环氧改性聚氨酯涂料的研制;许戈文等;《涂料工业》;19981231(第11期);第30-32页 * |
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Address after: Yuantong Industrial Point, Chongzhou Industrial Development Zone, Chengdu City, Sichuan Province, 611200 Patentee after: Beixin Waterproof (Chengdu) Co.,Ltd. Address before: Yuantong Industrial Point, Chongzhou Industrial Development Zone, Chengdu City, Sichuan Province, 611200 Patentee before: SICHUAN SHUYANG WATERPROOF MATERIAL Co.,Ltd. |
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