CN103965761A - Waterborne polyurethane anti-bacteria composite film material - Google Patents
Waterborne polyurethane anti-bacteria composite film material Download PDFInfo
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- CN103965761A CN103965761A CN201410197212.3A CN201410197212A CN103965761A CN 103965761 A CN103965761 A CN 103965761A CN 201410197212 A CN201410197212 A CN 201410197212A CN 103965761 A CN103965761 A CN 103965761A
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Abstract
The invention relates to a waterborne polyurethane anti-bacteria composite film material. The coating is characterized by comprising the following raw materials in parts by weight: 40-60 parts of waterborne hydroxyl polyacrylate dispersion, 12-25 parts of polyacrylic acid, 20-30 parts of polyisocyanate, 30-40 parts of cross-linking agent, 10-15 parts of filler, 10-15 parts of titanium dioxide, 80-100 parts of water, 2-5 parts of polyisocyanate curing agent, 1-2 parts of N, N-dimethylethanolamine, 0.2-0.5 part of cosolvent, 1-2 parts of antifreezing agent, 0.2-0.5 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.1-0.3 part of thickening agent, 0.1-0.3 part of wetting agent, 1-2 parts of preservative and 5-10 parts of anti-bacteria complex.
Description
Technical field
The invention belongs to coating and paint technology field, specifically the antibacterial composite film material of a kind of aqueous polyurethane.
Background technology
Polyurethane coating has the performance of many excellences, and as strong adhesion, wear resistance is good, and elasticity is adjustable, and good acid resistance, alkali resistance, resistant of high or low temperature etc., be therefore widely used at aspects such as national defence, building, chemical industry, vehicle, woodenware, aircrafts.At present, China's polyurethane coating annual production approaches 800,000 t, is mainly solvent-type double-component polyurethane coating.But along with the restriction to conventional solvent type coating volatile organic compounds (VOC) and hazardous air pollutants (HAP) discharge, open
Send out high-performance water-based polyurethane coating imperative.Aqueous polyurethane coating, taking water as main dispersing medium, does not fire, environmentally friendly.Aqueous polyurethane coating is divided into two kinds of single component and two-packs.Wherein monocomponent waterborne polyurethane coating application is convenient, but the chemical mediator-resitant property of its film cannot match in excellence or beauty with corresponding solvent based coating.
Every coating that uses water as solvent or make dispersion medium, all can be described as water-borne coatings.Water-borne coatings comprises three kinds of water soluble paints, water-reducible coatings, water-dispersible paint, water soluble paint is taking water soluble resin as film forming matter, taking polyvinyl alcohol and various modifier thereof as representative, in addition also has water-soluble Synolac, water-soluble epoxy resin and inorganic polymer water-base resin etc.; Water-reducible coatings refers to that rear emulsification emulsion becomes the coating of film thing preparation, that solvent type resin is dissolved in organic solvent, and then make resin dispersion in water, form emulsion by strong mechanical stirring under the help of emulsifying agent, be called rear emulsification emulsion, the coating of making used water in construction is diluted; Water-dispersion coating mainly refers to the coating of the preparation taking synthetic resin emulsion as film forming matter.Conventional is that synthetic resin emulsion or vinylformic acid are base-material at present, and adds various fillers, pigment and auxiliary agent etc.The main drawback of this coating be coated with film elasticity easily aging, cause extensibility to decline, can not effectively protect the intensity of wall plaster bottom, thereby produce metope cracking, come off, not only affect buildings attractive in appearance, and metope cracking, cause metope to leak.
Aqueous polyurethane coating with bi component is because film cross-linking density is high, there is excellent physical and mechanical properties and chemical mediator-resitant property, can replace solvent-borne type product of the same type as car paint, high-class woodenware coating, plastic paint and industrial antisepsis coating etc., meet different performance requriementss.Aqueous polyurethane coating with bi component is made up of water-based hydroxyl component and polyisocyanate curing agent.Water-based hydroxyl component comprises waterborne polymeric polyalcohol emulsion and aqueous dispersion, and the active group crosslinked with solidifying agent is not only provided, and also the emulsification of necessary energy and dispersion solidifying agent, have good consistency with solidifying agent.The performance impact of hydroxy component the final performance of diffusion in dispersion stabilization, the film process of solidifying agent in water and crosslinked and film.
Summary of the invention
The object of the present invention is to provide the antibacterial composite film material of a kind of aqueous polyurethane.
Object of the present invention can be achieved through the following technical solutions:
The antibacterial composite film material of a kind of aqueous polyurethane, it is characterized in that, this coating is made up of the raw material of following parts by weight, water-based hydroxyl polyacrylate dispersion 40-60 part, polyacrylic acid 12-25 part, polyisocyanates 20-30 part, linking agent 30-40 part, filler 10-15 part, titanium dioxide 10-15 part, water 80-100 part, polyisocyanate curing agent 2-5 part, N, N-dimethylethanolamine 1-2 part, solubility promoter 0.2-0.5 part, frostproofer 1-2 part, wetting agent 0.2-0.5 part, defoamer 0.2-0.5 part, thickening material 0.1-0.3 part, wetting agent 0.1-0.3 part, sanitas 1-2 part, antibacterial mixture 5-10 part.
Described titanium dioxide adopts Rutile type Titanium Dioxide.The preparation method of described antibacterial mixture is:
Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.
Described frostproofer adopts propylene glycol.
Described thickening material adopts the oxyethyl group urethane water-soluble thickener of hydrophobic grouping modification, and described defoamer adopts mineral oil defoaming agent; Described wetting agent adopts nonionogenic tenside; Described sanitas adopts isothiazolinone sanitas; Described antibacterial mixture 5-10 part adopts the antibacterial mixture 5-10 of organic amine part.
Described linking agent is Vinylstyrene, and described filler is titanium dioxide.
A preparation method for aqueous polyurethane elastic coating, gets each raw material by the formula described in claim 1～7 any one; Comprise the following steps:
The water of water gross weight 60% will be accounted for, polyacrylic acid, polyisocyanates, account for the defoamer of defoamer weight 1/2, wetting agent, sanitas, antibacterial mixture 5-10 part, N, N-dimethylethanolamine, solubility promoter joins and disperses in cylinder, under the rotating speed of 300～400rpm, stir evenly, add divided titanium dioxide to be dissipated to without adding thickening material three after goose pimples, under 1000～1500rpm rotating speed, be dispersed to fineness≤50 μ m, then add remaining water and remaining defoamer, add again water-based hydroxyl polyacrylate dispersion, under 100～300rpm rotating speed, disperse 10 minutes to system without bubble, adding thickening material regulation system to viscosity is 1000KU, by the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C, moulding, adopts plastic film blowing machine to extrude blown film, obtains product, described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.
Beneficial effect of the present invention: the antibacterial composite film material of aqueous polyurethane of the present invention combines the advantage of polyurethane coating and polypropylerie paint, has wear-resisting, corrosion-resistant and bright, water tolerance and the good characteristic of mechanical property.In addition, the film of urethane can be made the film of high rigidity, also can make the elasticity film that snappiness is good, has greatly strengthened the range of application of polyurethane coating.There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.
Embodiment
The present invention is described in further detail below.
The antibacterial composite film material of a kind of aqueous polyurethane, it is characterized in that, this coating is made up of the raw material of following parts by weight, water-based hydroxyl polyacrylate dispersion 40-60 part, polyacrylic acid 12-25 part, polyisocyanates 20-30 part, linking agent 30-40 part, filler 10-15 part, titanium dioxide 10-15 part, water 80-100 part, polyisocyanate curing agent 2-5 part, N, N-dimethylethanolamine 1-2 part, solubility promoter 0.2-0.5 part, frostproofer 1-2 part, wetting agent 0.2-0.5 part, defoamer 0.2-0.5 part, thickening material 0.1-0.3 part, wetting agent 0.1-0.3 part, sanitas 1-2 part, antibacterial mixture 5-10 part.
Described titanium dioxide adopts Rutile type Titanium Dioxide.The preparation method of described antibacterial mixture is:
Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.
Described frostproofer adopts propylene glycol.
Described thickening material adopts the oxyethyl group urethane water-soluble thickener of hydrophobic grouping modification, and described defoamer adopts mineral oil defoaming agent; Described wetting agent adopts nonionogenic tenside; Described sanitas adopts isothiazolinone sanitas; Described antibacterial mixture 5-10 part adopts the antibacterial mixture 5-10 of organic amine part.
Described linking agent is Vinylstyrene, and described filler is titanium dioxide.
A preparation method for aqueous polyurethane elastic coating, described formula is got each raw material; Comprise the following steps:
The water of water gross weight 60% will be accounted for, polyacrylic acid, polyisocyanates, account for the defoamer of defoamer weight 1/2, wetting agent, sanitas, antibacterial mixture 5-10 part, N, N-dimethylethanolamine, solubility promoter joins and disperses in cylinder, under the rotating speed of 300～400rpm, stir evenly, add divided titanium dioxide to be dissipated to without adding thickening material three after goose pimples, under 1000～1500rpm rotating speed, be dispersed to fineness≤50 μ m, then add remaining water and remaining defoamer, add again water-based hydroxyl polyacrylate dispersion, under 100～300rpm rotating speed, disperse 10 minutes to system without bubble, adding thickening material regulation system to viscosity is 1000KU, by the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C, moulding, adopts plastic film blowing machine to extrude blown film, obtains product, described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.
Performance test
(1) dispersion relative molecular mass and distribution thereof: adopt the gel permeation chromatograph (GPC of Waters company, 1515 pumps are joined 2414 differential refraction detectors) measure, separator column model is StyragelHT2+Styragel HT3+Styragel HT4, column temperature is 36 DEG C, moving phase is tetrahydrofuran (THF), and standard substance is polystyrene.
(2) dispersion particle diameters and size distribution: adopt Mastersizer 2000 laser particle size analyzers of Malvern company to measure.
(3) film performance: prepare film according to GB/T 1727-1992 " the general preparation method of film ", and detect the properties of film by corresponding GB, it is as shown in the table for result.
Coating of the present invention, in the time of construction, requires building wall to want water in advance mud putty to criticize flat, dry, and brushing back cover coating 1-2 road is dry.Then, the coating of the present invention of constructing, method can be for spraying, throwing are coated with, bullet is coated with, and thickness is that 2-3 millimeter is advisable, and then carries out roll-in with grain roller at once, forms uniform decorative pattern; After complete drying, can brush coloured finish paint or clear finish.There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.
Above-described embodiment only, for explanation technical conceive of the present invention and feature, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. the antibacterial composite film material of aqueous polyurethane, it is characterized in that, this coating is made up of the raw material of following parts by weight, water-based hydroxyl polyacrylate dispersion 40-60 part, polyacrylic acid 12-25 part, polyisocyanates 20-30 part, linking agent 30-40 part, filler 10-15 part, titanium dioxide 10-15 part, water 80-100 part, polyisocyanate curing agent 2-5 part, N, N-dimethylethanolamine 1-2 part, solubility promoter 0.2-0.5 part, frostproofer 1-2 part, wetting agent 0.2-0.5 part, defoamer 0.2-0.5 part, thickening material 0.1-0.3 part, wetting agent 0.1-0.3 part, sanitas 1-2 part, antibacterial mixture 5-10 part.
2. the antibacterial composite film material of aqueous polyurethane according to claim 1, is characterized in that, described titanium dioxide adopts Rutile type Titanium Dioxide; The preparation method of described antibacterial mixture is:
Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.
3. the antibacterial composite film material of aqueous polyurethane according to claim 1, is characterized in that, described frostproofer adopts propylene glycol.
4. the antibacterial composite film material of aqueous polyurethane according to claim 1, is characterized in that, described thickening material adopts the oxyethyl group urethane water-soluble thickener of hydrophobic grouping modification, and described defoamer adopts mineral oil defoaming agent; Described wetting agent adopts nonionogenic tenside; Described sanitas adopts isothiazolinone sanitas; Described antibacterial mixture adopts the antibacterial mixture of organic amine.
5. the antibacterial composite film material of aqueous polyurethane according to claim 1, is characterized in that, described linking agent is Vinylstyrene, and described filler is titanium dioxide.
6. a preparation method for aqueous polyurethane elastic coating, is characterized in that, gets each raw material by the formula described in claim 1～7 any one; Comprise the following steps:
The water of water gross weight 60% will be accounted for, polyacrylic acid, polyisocyanates, account for the defoamer of defoamer weight 1/2, wetting agent, sanitas, antibacterial mixture, N, N-dimethylethanolamine, solubility promoter joins and disperses in cylinder, under the rotating speed of 300～400rpm, stir evenly, add divided titanium dioxide to be dissipated to without adding thickening material three after goose pimples, under 1000～1500rpm rotating speed, be dispersed to fineness≤50 μ m, then add remaining water and remaining defoamer, add again water-based hydroxyl polyacrylate dispersion, under 100～300rpm rotating speed, disperse 10 minutes to system without bubble, adding thickening material regulation system to viscosity is 1000KU, by the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C, moulding, adopts plastic film blowing machine to extrude blown film, obtains product, described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.
7.1) water is dropped into a mixing bowl, under 300-500 rev/min of speed, add cellulose thickener;
2) stir after 10 minutes and add dispersion agent, defoamer, wetting agent, silicon powder, under 800-1200 rev/min of speed, disperse 30 minutes, sand milling, is less than 50 microns to fineness;
3) then under 300-500 rev/min of speed, add elastomeric propylene yogurt liquid, antifreezing agent, film coalescence aid, the swelling thickening material of alkali, sterilant, stir 30 minutes to even;
4) proceed to kneader, under agitation add hollow glass micropearl, pearlstone, vermiculite power, sericite in powder, flyash slowly, in batches, to evenly obtaining described coating.
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| CN201410197212.3A CN103965761A (en) | 2014-05-12 | 2014-05-12 | Waterborne polyurethane anti-bacteria composite film material |
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| CN201410197212.3A CN103965761A (en) | 2014-05-12 | 2014-05-12 | Waterborne polyurethane anti-bacteria composite film material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153908A (en) * | 2015-09-14 | 2015-12-16 | 南阳百草堂天然艾草制品有限公司 | Preparation method of wormwood paint |
| CN110051592A (en) * | 2019-05-25 | 2019-07-26 | 艾依诺科技有限公司 | A kind of folium artemisiae argyi essence moisturizing is spraying and its spray bottle |
| CN112194970A (en) * | 2020-10-16 | 2021-01-08 | 贵州黔鳌信息技术有限公司 | Heat-insulating noise-reducing waste gas-removing vehicle paint and manufacturing method thereof |
| CN114621663A (en) * | 2022-04-19 | 2022-06-14 | 上海立邦长润发涂料有限公司 | Water-based two-component gloss finish paint and preparation method thereof |
| CN114921134A (en) * | 2022-06-16 | 2022-08-19 | 烟台中科先进材料与绿色化工产业技术研究院 | High-permeability flexible self-crosslinking waterproof material and application thereof |
-
2014
- 2014-05-12 CN CN201410197212.3A patent/CN103965761A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153908A (en) * | 2015-09-14 | 2015-12-16 | 南阳百草堂天然艾草制品有限公司 | Preparation method of wormwood paint |
| CN110051592A (en) * | 2019-05-25 | 2019-07-26 | 艾依诺科技有限公司 | A kind of folium artemisiae argyi essence moisturizing is spraying and its spray bottle |
| CN112194970A (en) * | 2020-10-16 | 2021-01-08 | 贵州黔鳌信息技术有限公司 | Heat-insulating noise-reducing waste gas-removing vehicle paint and manufacturing method thereof |
| CN114621663A (en) * | 2022-04-19 | 2022-06-14 | 上海立邦长润发涂料有限公司 | Water-based two-component gloss finish paint and preparation method thereof |
| CN114621663B (en) * | 2022-04-19 | 2022-12-09 | 上海立邦长润发涂料有限公司 | Water-based two-component glossy finish paint and preparation method thereof |
| CN114921134A (en) * | 2022-06-16 | 2022-08-19 | 烟台中科先进材料与绿色化工产业技术研究院 | High-permeability flexible self-crosslinking waterproof material and application thereof |
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