CN105315878A - Solvent-free one-component polyurethane waterproof coating - Google Patents
Solvent-free one-component polyurethane waterproof coating Download PDFInfo
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- CN105315878A CN105315878A CN201510879435.2A CN201510879435A CN105315878A CN 105315878 A CN105315878 A CN 105315878A CN 201510879435 A CN201510879435 A CN 201510879435A CN 105315878 A CN105315878 A CN 105315878A
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Abstract
The invention relates to a solvent-free one-component polyurethane waterproof coating in the field of waterproof materials. A formula of the solvent-free one-component polyurethane waterproof coating comprises the following components in weight percent: 5-10% of polyether EP-330N, 30-40% of polyether DL-2000D, 20-25% of diphenylmethane diisocyanate, 10-15% of self-made epoxy resin, 0.1-0.2% of an anti-aging agent, 0.1-0.5% of an ultraviolet absorber, 0.01-0.15% of a defoaming agent, 0.1-0.5% of an anti-settling agent, 0.1-0.5% of a dispersing agent, 0.1-0.15% of a catalyst, 0.5-3% of pigment, 10-15% of kaolin and 5-10% of talcum powder. The solvent-free one-component polyurethane waterproof coating provided by the invention overcomes the defects that the existing one-component polyurethane waterproof coating contains a plasticizer and a solvent, does harm to a human body and pollutes the environment and mechanical properties of a film are reduced after long-term use; and the provided solvent-free one-component polyurethane waterproof coating is anti-aging, long in service life and environment-friendly, the adhesion and water resistance of the coating are good, and mechanical properties of the film are good.
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 softening agent and solvent, and solids content is lower, generally all adopts the tolylene diisocyanate that toxicity is larger, comparatively large to human injury, and the volatilization environmental pollution of solvent is in the curing process larger.For improving product strength, the content of isocyanic ester need be strengthened; But along with the increase of isocyanate content, the snappiness of coating reduces, and fragility strengthens.Adopt to add softening agent to ensure the snappiness of coating in prior art, but adding along with softening agent, the strength degradation of coating, is difficult to the intensity ensureing coating; And the agent of film life-time service post-plasticization progressively can move out of coating, greatly reduces the mechanical property of film.
Summary of the invention
The object of the invention is to overcome existing single-component polyurethane water-proof paint and contain softening agent and solvent, injury human body, contaminate environment, the defect that film dynamic performance reduces is coated with after life-time service, for people provide a kind of ageing-resistant, long service life, environmentally friendly, the cementability of coating, water-tolerant, be coated with the solvent free mono-composition poyurethane water-proof paint that film dynamic performance is good.
The object of the invention is to be 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%, diphenylmethanediisocyanate 20 ~ 25%, self-control epoxy resin 10 ~ 15%, anti-aging agent 0.1 ~ 0.2%, UV light absorber 0.1 ~ 0.5%, defoamer 0.01 ~ 0.15%, anti-settling agent 0.1 ~ 0.5%, dispersion agent 0.1 ~ 0.5%, catalyzer 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:
By above-mentioned formula, polyethers, self-control epoxy resin, anti-settling agent and dispersion agent are added in reactor, stir and be warming up to 60 DEG C, progressively add kaolin, talcum powder and pigment, be warming up to 120 ± 2 DEG C, dewater 3 hours; Be cooled to 85 ± 2 DEG C, then diphenylmethanediisocyanate is added dropwise to reactor, react 2 hours at 80 ± 2 DEG C, add catalyzer, then continue reaction 0.5 hour, be cooled to less than 70 DEG C, add anti-aging agent, UV light absorber and defoamer, discharging packaging after stirring.
In such scheme, described self-control epoxy resin, its preparation method is:
The dihydroxyphenyl propane (BPA) of 5 weight parts and the epoxy chloropropane (ECH) of 14 weight parts are added in dissolution kettle, stirs 1 hour at 45 DEG C, add the sodium hydroxide of 0.07 weight part, stir 4 hours at 60 ~ 62 DEG C; Then by dissolution kettle material send into reactor, at 60 ~ 65 DEG C, under vacuum tightness 20kPa, with 0.75 weight part/hour flow, add the aqueous sodium hydroxide solution that 3 weight part concentration are 50% weight percent; Add after alkali completes and be warmed up to 70 DEG C, dewater 10 minutes, vacuum tightness brings up to 18kPa, persistently overheating to 130 DEG C, obtains crude resin; Crude resin proceeds to refining kettle, stir evenly with the hexone of 5.4 weight parts, add water 1.6 weight parts, then hydro-oxidation sodium 0.965 weight part, 45 minutes time, after adding sodium hydroxide, two and one-half-hours are incubated at 86 ~ 88 DEG C, then methylate isobutyl ketone 4.5 weight part, add water 5.5 weight parts, stir 10 minutes, static 30 minutes; Separatory, washing, filters, obtains self-control epoxy resin.
Through formula contrast verification, use the single-component polyurethane water-proof paint tensile strength 12.8MPa of softening agent, thermal treatment elongation at break 404%, cohesive strength 2.3Mpa, and solvent free mono-composition poyurethane water-proof paint tensile strength 14.5MPa of the present invention, thermal treatment elongation at break 370%, cohesive strength 4.3Mpa, significantly improve the cohesiveness of coating to basic unit, the tensile strength of coating does not reduce, and after thermal treatment, elongation at break does not also obviously decline.
Solvent free mono-composition poyurethane water-proof paint of the present invention does not add any solvent, in use raw without volatilizable produce, can not to environment; Replace softening agent with self-control epoxy resin, solids content is high, and fugitive constituent is low, and the migration avoiding the agent of life-time service post-plasticization reduces coating property.Adopt the diphenylmethanediisocyanate that toxicity is less to replace the tolylene diisocyanate that toxicity is larger, remove linking agent, film, by absorbing the moisture-curable film forming in the middle of air, substantially reduces the injury to human body.Intensity is high, is applicable to priority project waterproof construction.Rich color, can mix colours according to concrete engineering application demand.
Therefore, instant invention overcomes existing single-component polyurethane water-proof paint and contain softening agent and solvent, injury human body, contaminate environment, be coated with the defect that film dynamic performance reduces after life-time service, the solvent free mono-composition poyurethane water-proof paint provided is ageing-resistant, long service life, environmentally friendly, the cementability of coating, water-tolerant, be coated with film dynamic performance good.
Embodiment
The invention is further illustrated by the following examples, and the present invention is not limited only to described 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%, diphenylmethanediisocyanate: 20%, self-control epoxy resin: 10%, anti-aging agent: 0.1%, UV light absorber: 0.1%, defoamer: 0.01%, anti-settling agent: 0.1%, dispersion agent: 0.5%, catalyzer: 0.1%, pigment: 3%, kaolin: 15%, talcum powder: 6.09%.
Anti-aging agent is anti-aging agent 168, and UV light absorber is UV light absorber UV531, and defoamer is defoamer 6800, and anti-settling agent is anti-settling agent CP-88, and catalyzer is dibutyl tin laurate T-12; Pigment is ferric oxide.
Preparation method is:
By above-mentioned formula, polyethers, self-control epoxy resin, anti-settling agent and dispersion agent are added in reactor, stir and be warming up to 60 DEG C, progressively add kaolin, talcum powder and pigment, be warming up to 120 ± 2 DEG C, dewater 3 hours; Be cooled to 85 ± 2 DEG C, then diphenylmethanediisocyanate is added dropwise to reactor, react 2 hours at 80 ± 2 DEG C, add catalyzer, then continue reaction 0.5 hour, be cooled to less than 70 DEG C, add anti-aging agent, UV light absorber and defoamer, discharging packaging after stirring.
The preparation method of self-control epoxy resin is:
The dihydroxyphenyl propane (BPA) of 5 weight parts and the epoxy chloropropane (ECH) of 14 weight parts are added in dissolution kettle, stirs 1 hour at 45 DEG C, add the sodium hydroxide of 0.07 weight part, stir 4 hours at 60 ~ 62 DEG C; Then by dissolution kettle material send into reactor, at 60 ~ 65 DEG C, under vacuum tightness 20kPa, with 0.75 weight part/hour flow, add the aqueous sodium hydroxide solution that 3 weight part concentration are 50% weight percent; Add after alkali completes and be warmed up to 70 DEG C, dewater 10 minutes, vacuum tightness brings up to 18kPa, persistently overheating to 130 DEG C, obtains crude resin; Crude resin proceeds to refining kettle, stir evenly with the hexone of 5.4 weight parts, add water 1.6 weight parts, then hydro-oxidation sodium 0.965 weight part, 45 minutes time, after adding sodium hydroxide, two and one-half-hours are incubated at 86 ~ 88 DEG C, then methylate isobutyl ketone 4.5 weight part, add water 5.5 weight parts, stir 10 minutes, static 30 minutes; Separatory, washing, filters, obtains self-control epoxy resin.
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%, diphenylmethanediisocyanate: 25%, self-control epoxy resin: 15%, anti-aging agent: 0.2%, UV light absorber: 0.5%, defoamer: 0.15%, anti-settling agent: 0.5%, dispersion agent: 0.1%, catalyzer: 0.15%, pigment: 0.5%, kaolin: 10%, talcum powder: 7.9%.
Anti-aging agent is anti-aging agent 1010, and pigment is phthalocyanine blue.
All the other are with 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%, diphenylmethanediisocyanate: 21%, self-control epoxy resin: 10%, anti-aging agent: 0.2%, UV light absorber: 0.15%, defoamer: 0.15%, anti-settling agent: 0.3%, dispersion agent: 0.1%, catalyzer: 0.1%, pigment: 1.5%, kaolin: 15%, talcum powder: 10%.
Pigment is iron oxide yellow.
All the other are with embodiment one.
Embodiment four
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%, diphenylmethanediisocyanate: 25%, self-control epoxy resin: 10%, anti-aging agent: 0.2%, UV light absorber: 0.3%, defoamer: 0.1%, anti-settling agent: 0.5%, dispersion agent: 0.5%, catalyzer: 0.1%, pigment: 3%, kaolin: 10.3%, talcum powder: 5%.
All the other are with embodiment one.
Claims (3)
1. a solvent free mono-composition poyurethane water-proof paint, is characterized in that formulation for coating material is:
By weight percentage, polyethers EP-330N5 ~ 10%, polyethers DL-2000D30 ~ 40%, diphenylmethanediisocyanate 20 ~ 25%, self-control epoxy resin 10 ~ 15%, anti-aging agent 0.1 ~ 0.2%, UV light absorber 0.1 ~ 0.5%, defoamer 0.01 ~ 0.15%, anti-settling agent 0.1 ~ 0.5%, dispersion agent 0.1 ~ 0.5%, catalyzer 0.1 ~ 0.15%, pigment 0.5 ~ 3%, kaolin 10 ~ 15%, talcum powder 5 ~ 10%.
2. solvent free mono-composition poyurethane water-proof paint according to claim 1, is characterized in that its preparation method is:
By formula, polyethers, self-control epoxy resin, anti-settling agent and dispersion agent are added in reactor, stir and be warming up to 60 DEG C, progressively add kaolin, talcum powder and pigment, be warming up to 120 ± 2 DEG C, dewater 3 hours; Be cooled to 85 ± 2 DEG C, then diphenylmethanediisocyanate is added dropwise to reactor, react 2 hours at 80 ± 2 DEG C, add catalyzer, then continue reaction 0.5 hour, be cooled to less than 70 DEG C, add anti-aging agent, UV light absorber and defoamer, discharging packaging after stirring.
3. solvent free mono-composition poyurethane water-proof paint according to claim 1, is characterized in that the preparation method of described self-control epoxy resin is:
The epoxy chloropropane of the dihydroxyphenyl propane of 5 weight parts and 14 weight parts is added in dissolution kettle, stirs 1 hour at 45 DEG C, add the sodium hydroxide of 0.07 weight part, stir 4 hours at 60 ~ 62 DEG C; Then by dissolution kettle material send into reactor, at 60 ~ 65 DEG C, under vacuum tightness 20kPa, with 0.75 weight part/hour flow, add the aqueous sodium hydroxide solution that 3 weight part concentration are 50% weight percent; Add after alkali completes and be warmed up to 70 DEG C, dewater 10 minutes, vacuum tightness brings up to 18kPa, persistently overheating to 130 DEG C, obtains crude resin; Crude resin proceeds to refining kettle, stir evenly with the hexone of 5.4 weight parts, add water 1.6 weight parts, then hydro-oxidation sodium 0.965 weight part, 45 minutes time, after adding sodium hydroxide, two and one-half-hours are incubated at 86 ~ 88 DEG C, then methylate isobutyl ketone 4.5 weight part, add water 5.5 weight parts, stir 10 minutes, static 30 minutes; Separatory, washing, filters, obtains self-control epoxy resin.
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Cited By (10)
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| 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 |
| CN107286835A (en) * | 2016-04-01 | 2017-10-24 | 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 |
| 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 |
| CN108102058A (en) * | 2018-01-11 | 2018-06-01 | 山东扬名新材料技术有限公司 | Single-component solvent-free self-leveling polyurethane elastomer |
| CN109777269A (en) * | 2019-01-24 | 2019-05-21 | 广州秀珀化工涂料有限公司 | Water power water conservancy one-component carbamide paint and preparation method thereof |
| CN110452610A (en) * | 2019-08-23 | 2019-11-15 | 辽宁女娲防水建材科技集团有限公司 | A kind of epoxy resin modification monocomponent polyurethane water proof anti-corrosive paint and preparation method |
| 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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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107286835A (en) * | 2016-04-01 | 2017-10-24 | 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 |
| 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 |
| CN108102058A (en) * | 2018-01-11 | 2018-06-01 | 山东扬名新材料技术有限公司 | Single-component solvent-free self-leveling polyurethane elastomer |
| 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 |
| CN109777269A (en) * | 2019-01-24 | 2019-05-21 | 广州秀珀化工涂料有限公司 | Water power water conservancy one-component carbamide paint and preparation method thereof |
| CN110452610A (en) * | 2019-08-23 | 2019-11-15 | 辽宁女娲防水建材科技集团有限公司 | A kind of epoxy resin modification monocomponent polyurethane water proof anti-corrosive paint and preparation method |
| 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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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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