CN105133366A - Environment-protective synthetic leather and preparation method thereof - Google Patents
Environment-protective synthetic leather and preparation method thereof Download PDFInfo
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- CN105133366A CN105133366A CN201510423159.9A CN201510423159A CN105133366A CN 105133366 A CN105133366 A CN 105133366A CN 201510423159 A CN201510423159 A CN 201510423159A CN 105133366 A CN105133366 A CN 105133366A
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Abstract
The invention relates to environment-protective synthetic leather and a preparation method thereof. The synthetic leather includes following components, by weight, 35-50 parts of thermoplastic polyurethane, 20-35 parts of N,N-dimethyl formamide, 15-25 parts of melamine co-polymer resin, 7-9 parts of nano titanium oxide-Ag antibacterial agent, 3-5 parts of additives, 4-8 parts of honey and 1-3 parts of elm powder. The synthetic leather is excellent in abrasion resistance, is good in moisture permeability and breathability, is reduced in potential damage on environment and human body, is enhanced in glossiness and cold and hot fatigue, is improved in moisture permeability and breathability, is enhanced real leather sense, is improved in abrasion resistance and is prolonged in service life.
Description
Technical field
The present invention relates to synthetic leather field, particularly relate to one and be conducive to improving synthetic leather anti-wear performance, water vapour permeability, permeability, reduce environmental synthetic leather of environment and human body potential threat and preparation method thereof.
Background technology
Need in people's daily life to apply a large amount of synthetic leather, and owing to adding the materials such as a large amount of plasticizer when producing synthetic leather, the synthetic leather gloss making to produce, feel are all undesirable.Want to reach better, comparatively ideal result of use, surface treatment must be carried out to synthetic leather in the production process of synthetic leather, give smooth, soft, the delustring in synthetic leather surface, waterproof, the comfortable feel such as antifouling, beautiful outward appearance.
It is soft that Synthetic Leather has gloss, nature, soft, kishke feel is strong, resistance toly disturb song, the anti-aging feature waiting excellence, it is the ideal substitute of natural leather, be widely used in clothes, shoemaking, case and bag, the industries such as furniture, but Synthetic Leather is in the market in poisture-penetrability, anti-wear performance aspect and natural leather gap too large, the Synthetic Leather goods of water vapour permeability difference can make us feeling sultry, clammy, for these shortcomings, performance at present mainly through changing Synthetic Leather slurry is improved, but the technique changing Synthetic Leather slurry poisture-penetrability and ABRASION RESISTANCE is in the market more complicated, cost is higher, DeGrain.Mill base used when synthetic leather is painted is much the mill base of chemical industry synthesis, can produce pollution to environment.Need to use a large amount of chemical substances in existing synthetic leather manufacture is produced, therefore very large harmfulness is created to environmental protection and health, along with progress and the growth in the living standard of society, material requirement is also along with raising, and healthy and environmental protection proposes new requirement to synthetic leather product.
Summary of the invention
The object of the invention is to solve existing Synthetic Leather in poisture-penetrability, anti-wear performance is poor, the defect of very large harmfulness created to environmental protection and health and provides one to be conducive to improving synthetic leather anti-wear performance, water vapour permeability, permeability, reducing the environmental synthetic leather to environment and human body potential threat.
Another object of the present invention is the preparation method in order to provide this synthetic leather.
To achieve these goals, the present invention is by the following technical solutions:
A kind of environmental synthetic leather, is made up of the component of following weight: 35-50 part thermoplastic polyurethane, 20-35 part N, dinethylformamide, 15-25 part melamine copolymer resins, 7-9 part nano-titanium oxide-Ag antiseptic, 3-5 part auxiliary agent, 4-8 part honey, 1-3 part elm powder.In the technical program, melamine copolymer resins has good hardness and wear resistance, easily disperses, and can strengthen fineness, cool-hot fatigue.Invention increases synthetic leather breathable moisture permeability, increase kishke feel, improve the ABRASION RESISTANCE of synthetic leather, extend the service life of synthetic leather.
As preferably, the preparation method of nano-titanium oxide-Ag antiseptic is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.3-0.5mol/L again, pH value 13-14.6, in 60-85 DEG C of water bath, apply the magnetic field of 0.5T-1.2T, evenly nano-titanium oxide is added in 5-10min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.1T-2.6T, and open the ultrasonic vibration of 65-85kw simultaneously, time 4-6h, then dry 12-18h at vacuum 210-320 DEG C, 10h is irradiated under ultraviolet light after drying is complete, obtained nano-titanium oxide-Ag antiseptic.
As preferably, auxiliary agent is the mixture of nano zircite, ethyl palmitate and glass microballoon, and the mass ratio of nano zircite, ethyl palmitate and glass microballoon is 1:5:3.In the technical program, nano-titanium oxide-Ag antiseptic and nano zircite act synergistically and further increase anti-microbial property, simultaneously nano zircite add the anti-wear performance and Resisting fractre toughness that can improve synthetic leather.Glass microballoon high dispersive, good fluidity, have more good mobility than sheet, needle-like or erose filler in liquid resin, improves the flow leveling of product, improve acid-proof alkaline simultaneously.
As preferably, elm powder 1200-2400 object elm powder.In the technical program, carry out alternative lignin with elm powder, more environmental protection.
Described in a kind of preparation method of environmental synthetic leather, preparation method is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.3-0.5mol/L again, pH value 13-14.6, in 60-85 DEG C of water bath, apply the magnetic field of 0.5T-1.2T, evenly nano-titanium oxide is added in 5-10min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.1T-2.6T, and open the ultrasonic vibration of 65-85kw simultaneously, time 4-6h, then dry 12-18h at vacuum 210-320 DEG C, 10h is irradiated under ultraviolet light after drying is complete, obtained nano-titanium oxide-Ag antiseptic, then mixed by all the other raw materials, stir 45-60min with 450-600r/min, then stir 60-75min with 2200-3200r/min, add banbury after filtration, 180-200 DEG C of plasticizing, opens refining, obtains slurry for 220-240 DEG C, slurry and base cloth are by four-roll calender calender lamination at 200-220 DEG C, and speed is 20-30m/min, and cooling rolling, product is through surface effect process, and quality inspection is qualified, can dispatch from the factory.
As preferably, described surface-treated surface conditioning agent is made up of ethyl lactate, melamine copolymer resins, DMF, sweet mellow wine, sodium alginate, dextrosan, nano zircite, sodium polymethacrylate, nano-cellulose and glass microballoon.
As preferably, in surface conditioning agent, the weight of each raw material is as follows: ethyl lactate 70-80 part, melamine copolymer resins 10-15 part, N, dinethylformamide 5-18 part, sweet mellow wine 7-9 part, sodium alginate 2-5 part, dextrosan 3-7 part, nano zircite 4-9 part, sodium polymethacrylate 10-12 part, nano-cellulose 15-20 part and glass microballoon 20-25 part.
As preferably, by melamine copolymer resins and N, dinethylformamide drops in reactor, stirring solvent is added after being heated to 85-90 DEG C, ordering in launching sweet mellow wine, sodium alginate, dextrosan and nano zircite after stirring, continue to be heated to 120-135 DEG C, sodium polymethacrylate, nano-cellulose and glass microballoon is dropped into after insulation 2h, holding temperature is at 120-135 DEG C of insulation 4h, ultrasonic vibration simultaneously, be cooled to 0 DEG C, grind 5-8 time at 0 DEG C with sand mill, filter and package obtained surface conditioning agent.
The invention has the beneficial effects as follows:
1) synthetic leather anti-wear performance of the present invention, water vapour permeability, permeability, reduces environment and human body potential threat;
2) synthetic leather of the present invention can strengthen fineness, cool-hot fatigue;
3) synthetic leather of the present invention improves synthetic leather breathable moisture permeability, increases kishke feel, improves the ABRASION RESISTANCE of synthetic leather, extend the service life of synthetic leather.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with embodiment, the present invention is described in further detail.
Raw material of the present invention all can be buied from market.
Embodiment 1
A kind of environmental synthetic leather, is made up of the component of following weight: 35 parts of thermoplastic polyurethanes, 20 parts of DMFs, 15 parts of melamine copolymer resinses, 7 parts of nano-titanium oxide-Ag antiseptics, 3 parts of auxiliary agents, 4 parts of honey, 1 part of elm powder.
Auxiliary agent is the mixture of nano zircite, ethyl palmitate and glass microballoon, and the mass ratio of nano zircite, ethyl palmitate and glass microballoon is 1:5:3; Elm powder 1200 object elm powder.
A kind of preparation method of environmental synthetic leather, described preparation method is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.3mol/L again, pH value 13, in 60 DEG C of water bath, apply the magnetic field of 0.5T, evenly nano-titanium oxide is added in 5min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.1T, and open the ultrasonic vibration of 65kw, time 4h, then dry 12h at 210 DEG C, vacuum simultaneously, 10h is irradiated under ultraviolet light, obtained nano-titanium oxide-Ag antiseptic after drying is complete;
Then mixed by all the other raw materials, stir 45min with 450r/min, then stir 60min with 2200r/min, add banbury after filtration, 180 DEG C of plasticizings, open refining, obtain slurry for 220 DEG C; Slurry and base cloth are by four-roll calender calender lamination at 200 DEG C, and speed is 20m/min, cooling rolling, and product is through surface effect process, and quality inspection is qualified, can dispatch from the factory;
In surface conditioning agent, the weight of each raw material is as follows: ethyl lactate 70 parts, melamine copolymer resins 10 parts, N, dinethylformamide 5 parts, 7 parts, sweet mellow wine, sodium alginate 2 parts, dextrosan 3 parts, nano zircite 4 parts, sodium polymethacrylate 10 parts, nano-cellulose 15 parts and glass microballoon 20 parts.
The preparation method of surface conditioning agent is: by melamine copolymer resins and N, dinethylformamide drops in reactor, stirring solvent is added after being heated to 85 DEG C, ordering in launching sweet mellow wine, sodium alginate, dextrosan and nano zircite after stirring, continue to be heated to 120 DEG C, sodium polymethacrylate, nano-cellulose and glass microballoon is dropped into after insulation 2h, holding temperature is at 120 DEG C of insulation 4h, ultrasonic vibration simultaneously, be cooled to 0 DEG C, grind 5 times at 0 DEG C with sand mill, filter and package obtained surface conditioning agent.
Through properties of product test, this products radial tensile load 287.9N, broadwise tensile load 231.2N, radial fragmentation percentage elongation 9.3%, broadwise elongation at break 16.1%, radial direction tears load 25.1N, and broadwise tears load 27.7N, and degradation does not ftracture.
Embodiment 2
A kind of environmental synthetic leather, is made up of the component of following weight: 45 parts of thermoplastic polyurethanes, 25 parts of DMFs, 20 parts of melamine copolymer resinses, 8 parts of nano-titanium oxide-Ag antiseptics, 4 parts of auxiliary agents, 6 parts of honey, 2 parts of elm powder.
Auxiliary agent is the mixture of nano zircite, ethyl palmitate and glass microballoon, and the mass ratio of nano zircite, ethyl palmitate and glass microballoon is 1:5:3; Elm powder 2000 object elm powder.
A kind of preparation method of environmental synthetic leather, described preparation method is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.4mol/L again, pH value 13.6, in 75 DEG C of water bath, apply the magnetic field of 0.8T, evenly nano-titanium oxide is added in 8min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.3T, and open the ultrasonic vibration of 70kw, time 5h, then dry 16h at 240 DEG C, vacuum simultaneously, 10h is irradiated under ultraviolet light, obtained nano-titanium oxide-Ag antiseptic after drying is complete;
Then mixed by all the other raw materials, stir 50min with 500r/min, then stir 70min with 2800r/min, add banbury after filtration, 195 DEG C of plasticizings, open refining, obtain slurry for 230 DEG C; Slurry and base cloth are by four-roll calender calender lamination at 210 DEG C, and speed is 25m/min, cooling rolling, and product is through surface effect process, and quality inspection is qualified, can dispatch from the factory;
In surface conditioning agent, the weight of each raw material is as follows: ethyl lactate 75 parts, melamine copolymer resins 13 parts, N, dinethylformamide 10 parts, 8 parts, sweet mellow wine, sodium alginate 4 parts, dextrosan 5 parts, nano zircite 6 parts, sodium polymethacrylate 11 parts, nano-cellulose 18 parts and glass microballoon 2. parts.
The preparation method of surface conditioning agent is: by melamine copolymer resins and N, dinethylformamide drops in reactor, stirring solvent is added after being heated to 88 DEG C, ordering in launching sweet mellow wine, sodium alginate, dextrosan and nano zircite after stirring, continue to be heated to 130 DEG C, sodium polymethacrylate, nano-cellulose and glass microballoon is dropped into after insulation 2h, holding temperature is at 123 DEG C of insulation 4h, ultrasonic vibration simultaneously, be cooled to 0 DEG C, grind 6 times at 0 DEG C with sand mill, filter and package obtained surface conditioning agent.
Through properties of product test, this products radial tensile load 285.3N, broadwise tensile load 225.7N, radial fragmentation percentage elongation 11.2%, broadwise elongation at break 14.5%, radial direction tears load 22.4N, and broadwise tears load 23.7N, and degradation does not ftracture.
Embodiment 3
A kind of environmental synthetic leather, is made up of the component of following weight: 50 parts of thermoplastic polyurethanes, 35 parts of DMFs, 25 parts of melamine copolymer resinses, 9 parts of nano-titanium oxide-Ag antiseptics, 5 parts of auxiliary agents, 8 parts of honey, 3 parts of elm powder.
Auxiliary agent is the mixture of nano zircite, ethyl palmitate and glass microballoon, and the mass ratio of nano zircite, ethyl palmitate and glass microballoon is 1:5:3; Elm powder 2400 object elm powder.
A kind of preparation method of environmental synthetic leather, described preparation method is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.5mol/L again, pH value 14.6, in 85 DEG C of water bath, apply the magnetic field of 1.2T, evenly nano-titanium oxide is added in 10min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.6T, and open the ultrasonic vibration of 85kw, time 6h, then dry 18h at 320 DEG C, vacuum simultaneously, 10h is irradiated under ultraviolet light, obtained nano-titanium oxide-Ag antiseptic after drying is complete;
Then mixed by all the other raw materials, stir 60min with 600r/min, then stir 75min with 3200r/min, add banbury after filtration, 200 DEG C of plasticizings, open refining, obtain slurry for 240 DEG C; Slurry and base cloth are by four-roll calender calender lamination at 220 DEG C, and speed is 30m/min, cooling rolling, and product is through surface effect process, and quality inspection is qualified, can dispatch from the factory;
In surface conditioning agent, the weight of each raw material is as follows: ethyl lactate 80 parts, melamine copolymer resins 15 parts, N, dinethylformamide 18 parts, 9 parts, sweet mellow wine, sodium alginate 5 parts, dextrosan 7 parts, nano zircite 9 parts, sodium polymethacrylate 12 parts, nano-cellulose 20 parts and glass microballoon 25 parts.
The preparation method of surface conditioning agent is: by melamine copolymer resins and N, dinethylformamide drops in reactor, stirring solvent is added after being heated to 90 DEG C, ordering in launching sweet mellow wine, sodium alginate, dextrosan and nano zircite after stirring, continue to be heated to 135 DEG C, sodium polymethacrylate, nano-cellulose and glass microballoon is dropped into after insulation 2h, holding temperature is at 135 DEG C of insulation 4h, ultrasonic vibration simultaneously, be cooled to 0 DEG C, grind 8 times at 0 DEG C with sand mill, filter and package obtained surface conditioning agent.
Through properties of product test, this products radial tensile load 280.1N, broadwise tensile load 223.4N, radial fragmentation percentage elongation 10.3%, broadwise elongation at break 15.6%, radial direction tears load 18.5N, and broadwise tears load 20.3N, and degradation does not ftracture.
Claims (8)
1. an environmental synthetic leather, it is characterized in that, be made up of the component of following weight: 35-50 part thermoplastic polyurethane, 20-35 part DMF, 15-25 part melamine copolymer resins, 7-9 part nano-titanium oxide-Ag antiseptic, 3-5 part auxiliary agent, 4-8 part honey, 1-3 part elm powder.
2. a kind of environmental synthetic leather according to claim 1, it is characterized in that, the preparation method of nano-titanium oxide-Ag antiseptic is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.3-0.5mol/L again, pH value 13-14.6, in 60-85 DEG C of water bath, apply the magnetic field of 0.5T-1.2T, evenly nano-titanium oxide is added in 5-10min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.1T-2.6T, and open the ultrasonic vibration of 65-85kw simultaneously, time 4-6h, then dry 12-18h at vacuum 210-320 DEG C, 10h is irradiated under ultraviolet light after drying is complete, obtained nano-titanium oxide-Ag antiseptic.
3. a kind of environmental synthetic leather according to claim 1, is characterized in that, auxiliary agent is the mixture of nano zircite, ethyl palmitate and glass microballoon, and the mass ratio of nano zircite, ethyl palmitate and glass microballoon is 1:5:3.
4. a kind of environmental synthetic leather according to claim 1 or 2 or 3, is characterized in that, elm powder 1200-2400 object elm powder.
5. the preparation method of an environmental synthetic leather as claimed in claim 1, it is characterized in that, described preparation method is: NaOH is instilled liquor argenti nitratis ophthalmicus and drip the silver-colored ammonium salt solution that ammoniacal liquor prepares 0.3-0.5mol/L again, pH value 13-14.6, in 60-85 DEG C of water bath, apply the magnetic field of 0.5T-1.2T, evenly nano-titanium oxide is added in 5-10min, after adding nano-titanium oxide completely, magnetic field intensity is increased to 2.1T-2.6T, and open the ultrasonic vibration of 65-85kw simultaneously, time 4-6h, then dry 12-18h at vacuum 210-320 DEG C, 10h is irradiated under ultraviolet light after drying is complete, obtained nano-titanium oxide-Ag antiseptic, then mixed by all the other raw materials, stir 45-60min with 450-600r/min, then stir 60-75min with 2200-3200r/min, add banbury after filtration, 180-200 DEG C of plasticizing, opens refining, obtains slurry for 220-240 DEG C, slurry and base cloth are by four-roll calender calender lamination at 200-220 DEG C, and speed is 20-30m/min, and cooling rolling, product is through surface effect process, and quality inspection is qualified, can dispatch from the factory.
6. the preparation method of a kind of environmental synthetic leather according to claim 5, it is characterized in that, described surface-treated surface conditioning agent is made up of ethyl lactate, melamine copolymer resins, DMF, sweet mellow wine, sodium alginate, dextrosan, nano zircite, sodium polymethacrylate, nano-cellulose and glass microballoon.
7. the preparation method of a kind of environmental synthetic leather according to claim 6, it is characterized in that, in surface conditioning agent, the weight of each raw material is as follows: ethyl lactate 70-80 part, melamine copolymer resins 10-15 part, DMF 5-18 part, sweet mellow wine 7-9 part, sodium alginate 2-5 part, dextrosan 3-7 part, nano zircite 4-9 part, sodium polymethacrylate 10-12 part, nano-cellulose 15-20 part and glass microballoon 20-25 part.
8. the preparation method of a kind of environmental synthetic leather according to claim 6 or 7, it is characterized in that, by melamine copolymer resins and N, dinethylformamide drops in reactor, stirring solvent is added after being heated to 85-90 DEG C, ordering in launching sweet mellow wine after stirring, sodium alginate, dextrosan and nano zircite, continue to be heated to 120-135 DEG C, sodium polymethacrylate is dropped into after insulation 2h, nano-cellulose and glass microballoon, holding temperature is at 120-135 DEG C of insulation 4h, ultrasonic vibration simultaneously, be cooled to 0 DEG C, grind 5-8 time at 0 DEG C with sand mill, filter and package obtained surface conditioning agent.
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| CN111979788A (en) * | 2020-07-08 | 2020-11-24 | 佛山市三水联美化工有限公司 | Waterborne polyurethane synthetic leather and application thereof |
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Application publication date: 20151209 |