CN110144737A - A kind of preparation method of super-hydrophobic ecological, environmental protective super fiber leather - Google Patents
A kind of preparation method of super-hydrophobic ecological, environmental protective super fiber leather Download PDFInfo
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- CN110144737A CN110144737A CN201910468732.6A CN201910468732A CN110144737A CN 110144737 A CN110144737 A CN 110144737A CN 201910468732 A CN201910468732 A CN 201910468732A CN 110144737 A CN110144737 A CN 110144737A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/38—Polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2205/00—Condition, form or state of the materials
- D06N2205/02—Dispersion
- D06N2205/023—Emulsion, aqueous dispersion, latex
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Abstract
The present invention provides a kind of preparation methods of super-hydrophobic ecological, environmental protective super fiber leather, include the following steps: Step 1: preparing aqueous polyurethane superfine fiber synthetic leather semi-finished product；It include leather coating compound penetrant in super-hydrophobic arrangement composite mortar Step 2: carrying out super-hydrophobic arrangement on the surface of aqueous polyurethane superfine fiber synthetic leather semi-finished product.The invention has the following advantages: (1) whole process organic solvent-free participates in, the safer environmental protection of production process greatly reduces discharge of poisonous waste；(2) auxiliary agent is improved to the permeability of leather, is imparted the stable super-hydrophobicity of aqueous polyurethane superfine fiber synthetic leather, is increased its tolerance, makes it more resistant to growth that is dirty durable, and reducing surface bacteria.
Description
Technical field
The present invention relates to a kind of preparation methods of super-hydrophobic ecological, environmental protective super fiber leather, and the ecological, environmental protective super fiber leather environmental protection is without dirt
Dye, flexible, breathable is ageing-resistant, and has super-hydrophobic functional characteristic, and the invention belongs to synthetic leather production technical fields.
Background technique
In recent years, increasingly stringent to the limitation of volatile organic matter and Toxic with the enhancing of people's environmental consciousness, and
Aqueous polyurethane is increasingly becoming research hotspot, closes to aqueous polyurethane since the low characteristic of its environmental protection, energy consumption is increasingly paid attention to
The research and application of finished leather technology also enter an important period.
But at present in rtificial leather technical field, many rtificial leathers after being prepared into clothes or shoes, surface
Hydrophobicity is poor.Although there is leather surface preferable waterproof effect to cause leather to get wet it since hydrophobicity is poor
Afterwards, water droplet remains in leather surface.Water droplet is too long in leather surface retention time, is easy that leather surface is caused to breed bacterium or hair
It is mould, cause the performance of leather to be affected.And if leather is without hydrophobic finishing, will show poor adaptability with it is durable
Property.
Patent " a kind of new waterproof type synthetic leather slurry and preparation method thereof " (publication number CN104389190A) discloses
A kind of preparation method of water proof type synthetic leather, synthetic leather toughness made from the method is strong, and waterproof performance is good.Patent is " a kind of aqueous poly-
Urethane Waterproof Breathable coated fabric " (publication number CN104448220A) discloses a kind of aqueous polyurethane Waterproof Breathable coated fabric
And preparation method thereof, which has been made the coated fabric of a kind of high elongation at tear, high moisture-inhibiting gas permeability, effectively improves and changes
The performances such as elongation at break, moisture-penetrable ventilated property, ageing resistance, anti-flammability and the antistatic property of property polyurethane.
Patent " a kind of aqueous polyurethane upper leather production technology " (publication number CN105178053A) discloses a kind of aqueous
Polyurethane shoe upper leather production technology, comprising the following steps: (1) coat aqueous composite mortar bottom in release paper, be sent to
It is dried in wave infrared heating oven；(2) aqueous composite mortar surface layer is coated on aqueous composite mortar bottom, and it is red to be sent to medium wave
It is bonded drying with aqueous polyurethane superfine fiber synthetic leather bass after drying in additional oven heat, obtains water-based polyurethane upper leather
Semi-finished product；(3) by the aqueous poly- cruel upper leather semi-finished product of ammonia after washing, scratch resistance, waterproof, antifouling process, throw off release paper to get
Aqueous polyurethane upper leather.
Aqueous poly- ammonia disclosed in patent " a kind of aqueous polyurethane upper leather production technology " (publication number CN105178053A)
Ester upper leather, has the following technical problems: (1) water droplet is not easy to slide after getting wet, and influences performance；(2) it easily stains；(3) tolerance
Difference, Yi Zisheng bacterium；(4) since permeance property of the super-hydrophobic auxiliary agent to leather is poor, it is easy to cause auxiliary agent that can not penetrate into leather
Layer, to cause the super-hydrophobic auxiliary agent of leather surface that can not construct stable super hydrophobic functional film, and washing fastness is poor.
Summary of the invention
The technical problems to be solved by the present invention are: super-hydrophobic auxiliary agent is poor to the permeance property of leather, it is easy to cause auxiliary agent
Leather inner layer can not be penetrated into, thus cause the super-hydrophobic auxiliary agent of leather surface that can not construct stable super hydrophobic functional film, and
Washing fastness is poor.
In order to solve the above-mentioned technical problems, the present invention provides a kind of preparation method of super-hydrophobic super fiber leather, including it is as follows
Step:
(1) aqueous polyurethane superfine fiber synthetic leather semi-finished product are prepared；
(2) super-hydrophobic arrangement is carried out on the surface of superfine fiber chemical leather semi-finished product, super-hydrophobic arrangement process uses super
It include leather coating compound penetrant in hydrophobic finishing composite mortar.
In some embodiments, step (1) includes following subdivided step: uniformly coating aqueous polyurethane on silicone oil paper surface
Compound starch adhesive is simultaneously dried, and is then bonded with aqueous polyurethane superfine fiber synthetic leather bass, and aqueous polyurethane superfine fibre is obtained
Synthetic leather semi-finished product.
In some embodiments, step (2) includes following subdivided step: by aqueous polyurethane superfine fiber synthetic leather half at
Product are cleaned, sprayed after Wear-resistant Treatment or are coated or impregnated with super-hydrophobic arrangement composite mortar, and high temperature is torn silicone oil paper after baking,
Obtain aqueous polyurethane superfine fiber synthetic leather finished product.
In some embodiments, the compound starch adhesive of aqueous polyurethane is as follows by the component proportion of mass fraction: aqueous polyurethane
50-80 parts of resin, 0.5-2 parts of superfine modified micronized polyethylene wax, aqueous siloxanes 1-3 parts, Sodium Polyacrylate 0.1-0.5
Part, 0.1-0.5 parts of glycerin polyoxyethylene ether, 0.5-2 parts of cumyl peroxide, 0.5-2 parts of superfine white carbon black, ammonium stearate cream
5-10 parts of liquid, 0.2-0.5 parts of silicone softening agent, 3-10 parts of water stain.
In some embodiments, take microwave heating or infrared heating to the compound starch adhesive of the aqueous polyurethane on silicone oil paper surface
It is dried, 50-150 DEG C of heating temperature.
In some embodiments, microwave heating, microwave frequency 1000-3500MHz are taken, the microwave time is 1-10min,
Temperature is 50-150 DEG C.
In some embodiments, super-hydrophobic arrangement composite mortar is as follows by the component proportion of mass fraction: leather coating is multiple
Close bleeding agent 0.5-2 parts, 5-10 parts of hydroxypropyl terminated polysiloxane modified aqueous polyurethane, 35-50 parts of water.
In some embodiments, leather coating compound penetrant is made by a variety of proportion of surfactant, surfactant
More than two classes selected from following surfactant: cationic surfactant, anionic surfactant, non-ionic surface active
Agent, oil-based surfactant, chelate surfactant.
In some embodiments, leather coating compound penetrant is obtained by being sufficiently mixed with the various ingredients in the following group: ten
Dialkyl benzene sulfonic acids sodium, fatty alcohol polyoxyethylene ether, linolenic acid, aerosol-OT salt, styrene, ethylenediamine tetrem
Acid, sodium alklyarylsulfonate, fatty alcohol succinate.
In some embodiments, hydroxypropyl terminated polysiloxane modified aqueous polyurethane is by the preparation side that includes the following steps
Method is made:
(1) containing hydrogen silicone oil and propenyl are sequentially added in the reaction vessel, the mass fraction of containing hydrogen silicone oil and propenyl is matched
Than for 1:(2-5), microwave heating is to 40-55 DEG C after uniform stirring；
(2) 15-25ppm catalyst reaction 5-10min is added in the reaction vessel, continues thereafter with microwave heating to 60-
75 DEG C of reaction 2-4h；
(3) finally decompression rotary evaporation removes low-boiling-point substance, obtains hydroxypropyl terminated polysiloxane modified aqueous polyurethane.
Compared with the existing technology, the invention has the following advantages:
(1) the whole organic solvent-free of the present invention participates in, and the safer environmental protection of production process greatly reduces harmful substance row
It puts.
(2) present invention improves auxiliary agents to the permeability of leather, imparts stable super-hydrophobic of aqueous polyurethane super fiber leather
Property, considerably increases the tolerance of super fiber leather, and super fiber leather is made to greatly reduce the taste of super fiber leather surface bacteria more resistant to dirty durable
It is raw.
Specific embodiment
This patent provides a kind of production method of super-hydrophobic ecological, environmental protective super fiber leather, can be applied to vamp, household, car
Decorations etc..The production method guarantees that imparting synthetic leather is excellent while production process safety and environmental protection using aqueous polyurethane as primary raw material
Different physical property and softness, ventilative feel.The production method is that super fiber leather has been superimposed super hydrophobic functional, after leather gets wet,
Water droplet still keeps dry and comfortable, improves super fiber leather since leather surface ultra-hydrophobicity quickly slides from surface after so that leather surface is got wet
Durability and adaptability.
The production method of above-mentioned super-hydrophobic ecological, environmental protective super fiber leather includes the following steps:
Step 1
The compound starch adhesive of aqueous polyurethane is uniformly coated on silicone oil paper surface, then uses microwave drying, is then gathered with aqueous
The fitting of urethane superfine fiber chemical leather bass, obtains aqueous polyurethane superfine fiber synthetic leather semi-finished product.The microwave drying microwave
Frequency is 1000-3500MHz, and the microwave time is 1-10min, and temperature is 50-150 DEG C.The advantages of microwave drying, is: avoiding
Local polyurethane reduces being adhered between polyurethane and fiber in fiber surface drying and forming-film.It can be dried using other heating
Dry mode, such as infrared heating etc..
The above-mentioned compound starch adhesive of aqueous polyurethane is made of the auxiliary agent of following mass fraction: 50-80 parts of waterborne polyurethane resin,
0.5-2 parts of superfine modified micronized polyethylene wax, aqueous siloxanes 1-3 parts, 0.1-0.5 parts of Sodium Polyacrylate, glycerol polyoxy second
0.1-0.5 parts of alkene ether, 0.5-2 parts of cumyl peroxide, 0.5-2 parts of superfine white carbon black, 0.2-0.5 parts of silicone softening agent,
3-10 parts of water stain.This formula is with water as solvent, safety and environmental protection.
The Action Specification of the above various auxiliary agents is as follows: superfine modified micronized polyethylene wax (i.e. wax powder) is aqueous for increasing
Polyurethane resin and other auxiliary agents are too strong in superfine fiber chemical leather surface adhesion force, and elimination superfine fiber chemical leather surface
Gloss, make it closer to natural animal leather texture, increase feeling of high class.Aqueous siloxanes promotes silicone oil paper as levelling agent
The waterborne polyurethane resin on surface forms a flat and smooth film.Sodium Polyacrylate is as thickener.Glycerin polyoxyethylene
Ether is as defoaming agent.For cumyl peroxide as crosslinking agent, effect is exactly to generate chemical bond between the molecule of line style, is made
Linear molecule is connected with each other, and is formed reticular structure, is improved the intensity and elasticity of waterborne polyurethane resin layer in this way.It is ultra-fine white
Carbon black (i.e. Nano-meter SiO_22) it is used for delustring, and increase the intensity and tolerance of waterborne polyurethane resin layer.Silicone softening agent
Assign the attribute of waterborne polyurethane resin layer softness.Water stain is the coloring of waterborne polyurethane resin layer.
Step 2
Aqueous polyurethane superfine fiber synthetic leather semi-finished product are cleaned, sprayed after Wear-resistant Treatment or are coated or impregnated with super
Hydrophobic finishing composite mortar, high temperature are torn silicone oil paper after baking, and obtain super-hydrophobic ecological, environmental protective super fiber leather.High temperature, which bakes, takes microwave
Heating or infrared heating, 80-120 DEG C of temperature.
Above-mentioned super-hydrophobic arrangement composite mortar is grouped as by the group of following mass fraction: leather coating compound penetrant 0.5-
2 parts, 5-10 parts of hydroxypropyl terminated polysiloxane modified aqueous polyurethane, 35-50 parts of water.
Further, above-mentioned leather coating compound penetrant is vigorously stirred ultrasound after being mixed according to a certain ratio by following components
Disperse: 5-10 parts of neopelex, 5-10 parts of fatty alcohol polyoxyethylene ether, 1-2 parts of linolenic acid, sulfosuccinate
5-10 parts of dioctyl ester sodium salt, 2-5 parts of ethylenediamine tetra-acetic acid, 2-5 parts of sodium alklyarylsulfonate, 5-10 parts of fatty alcohol succinate.
Further, above-mentioned hydroxypropyl terminated polysiloxane modified aqueous polyurethane the preparation method is as follows: equipped with stirring
Mix in the container of device, thermometer, condensing unit with 1:(2-5) ratio sequentially adds containing hydrogen silicone oil, propenyl, and it is micro- after uniform stirring
Wave heating is added catalyst (complex compound of platinum) 15-25ppm and reacts 5-10min, continue thereafter with microwave heating extremely to 40-55 DEG C
60-75 DEG C of reaction 2-4h finally depressurizes rotary evaporation and removes low-boiling-point substance, obtain product.
Embodiment 1
The compound starch adhesive of aqueous polyurethane is uniformly coated on silicone oil paper surface, then uses microwave drying, is then gathered with aqueous
The fitting of urethane superfine fiber chemical leather bass, obtains aqueous polyurethane superfine fiber synthetic leather semi-finished product.
Composite mortar surface layer is made of the auxiliary agent of following mass fraction: 60 parts of waterborne polyurethane resin, superfine modified micro mist
1 part of polyethylene wax of change, 1 part of aqueous siloxanes, 0.5 part of Sodium Polyacrylate, 0.5 part of glycerin polyoxyethylene ether, peroxidating diisopropyl
0.5 part of benzene, 0.5 part of superfine white carbon black, 5 parts of ammonium stearate emulsion, 0.5 part of silicone softening agent, 1 part of water stain.Originally match
Side is with water as solvent, safety and environmental protection.The microwave drying microwave frequency is 2000MHz, and the microwave time is 2min, temperature 80
℃。
Aqueous polyurethane superfine fiber synthetic leather semi-finished product are cleaned, sprayed after Wear-resistant Treatment or are coated or impregnated with super
Hydrophobic finishing composite mortar, high temperature are torn silicone oil paper after baking, and obtain super-hydrophobic ecological, environmental protective super fiber leather.The super-hydrophobic arrangement is multiple
Close slurry to be grouped as by the group of following mass fraction: 0.5 part of leather coating compound penetrant, hydroxypropyl terminated polysiloxane is modified
5 parts of aqueous polyurethane, 35 parts of water.The high temperature, which bakes, takes microwave heating or infrared heating, and 80 DEG C of temperature.
Above-mentioned leather coating compound penetrant is vigorously stirred ultrasonic disperse after being mixed according to a certain ratio by following components and forms:
5 parts of neopelex, 5 parts of fatty alcohol polyoxyethylene ether, 1 part of linolenic acid, 5 parts of aerosol-OT salt, second
2 parts of ethylenediamine tetraacetic acid (EDTA), 2 parts of sodium alklyarylsulfonate, 5 parts of fatty alcohol succinate.
Above-mentioned hydroxypropyl terminated polysiloxane modified aqueous polyurethane the preparation method is as follows: be equipped with blender, temperature
Meter, condensing unit container in containing hydrogen silicone oil, propenyl sequentially added with 1:2 ratio, after uniform stirring microwave heating to 40 DEG C,
Catalyst (complex compound of platinum) 15ppm is added and reacts 5min, continues thereafter with microwave heating to 60 DEG C of reaction 2h, finally decompression rotation
Evaporative removal low-boiling-point substance, obtains product.
Embodiment 2
The compound starch adhesive of aqueous polyurethane is uniformly coated on silicone oil paper surface, then uses microwave drying, is then gathered with aqueous
The fitting of urethane superfine fiber chemical leather bass, obtains aqueous polyurethane superfine fiber synthetic leather semi-finished product.The composite mortar surface layer
It is made of the auxiliary agent of following mass fraction: 80 parts of waterborne polyurethane resin, 2 parts of superfine modified micronized polyethylene wax, aqueous silicon
It is 2 parts of oxygen alkane, 1 part of Sodium Polyacrylate, 1 part of glycerin polyoxyethylene ether, 1 part of cumyl peroxide, 1 part of superfine white carbon black, stearic
10 parts of sour ammonium lotion, 1 part of silicone softening agent, 5 parts of water stain.This formula is with water as solvent, safety and environmental protection.The microwave
Drying microwave frequency is 2500MHz, and the microwave time is 5min, and temperature is 100 DEG C.
Aqueous polyurethane superfine fiber synthetic leather semi-finished product are cleaned, sprayed after Wear-resistant Treatment or are coated or impregnated with super
Hydrophobic finishing composite mortar, high temperature are torn silicone oil paper after baking, and obtain super-hydrophobic ecological, environmental protective super fiber leather.The super-hydrophobic arrangement is multiple
Slurry is closed to be grouped as by the group of following mass fraction: 2 parts of leather coating compound penetrant, hydroxypropyl terminated polysiloxane modified water
10 parts of polyurethane, 50 parts of water of property.The high temperature, which bakes, takes microwave heating or infrared heating, and 120 DEG C of temperature.
Above-mentioned leather coating compound penetrant is vigorously stirred ultrasonic disperse after being mixed according to a certain ratio by following components and forms:
10 parts of neopelex, 10 parts of fatty alcohol polyoxyethylene ether, 2 parts of linolenic acid, 10 parts of aerosol-OT salt,
5 parts of ethylenediamine tetra-acetic acid, 5 parts of sodium alklyarylsulfonate, 10 parts of fatty alcohol succinate.
Above-mentioned hydroxypropyl terminated polysiloxane modified aqueous polyurethane the preparation method is as follows: be equipped with blender, temperature
Meter, condensing unit container in containing hydrogen silicone oil, propenyl sequentially added with 1:5 ratio, after uniform stirring microwave heating to 55 DEG C,
Catalyst (complex compound of platinum) 25ppm is added and reacts 10min, continues thereafter with microwave heating to 75 DEG C of reaction 4h, finally decompression rotation
Turn evaporative removal low-boiling-point substance, obtains product.
Compared with prior art, super-hydrophobic ecological, environmental protective super fiber leather provided by the invention has the advantage that
(1) leather stable ultra-hydrophobic performance is assigned, water droplet quickly slides after leather gets wet, and keeps leather surface dry and comfortable；
(2) ultra-hydrophobicity of leather surface enables water droplet to take away spot while leather surface quickly slides, and imparts leather surface
Certain self-cleaning performance；
(3) ultra-hydrophobicity of leather surface makes leather surface be not easy to remain water droplet, so that the leather surface moment be made to keep dry and comfortable, avoids
The growth of bacterium, and the effect of hydrophobic anti-pollution has delayed the aging of leather, increases service life.
(4) auxiliary agent is improved to the permeability of leather, imparts the stable super-hydrophobicity of aqueous polyurethane super fiber leather, significantly
The tolerance for increasing super fiber leather makes super fiber leather greatly reduce the growth of super fiber leather surface bacteria more resistant to dirty durable.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of preparation method of super-hydrophobic super fiber leather, which comprises the steps of:
(1) aqueous polyurethane superfine fiber synthetic leather semi-finished product are prepared；
(2) super-hydrophobic arrangement is carried out on the surface of the aqueous polyurethane superfine fiber synthetic leather semi-finished product, it is described super-hydrophobic whole
It include leather coating compound penetrant in the super-hydrophobic arrangement composite mortar that reason process uses.
2. a kind of preparation method of super-hydrophobic super fiber leather according to claim 1, which is characterized in that step (1) includes such as
Lower subdivided step: uniformly coating the compound starch adhesive of aqueous polyurethane on silicone oil paper surface and dry, then ultra-fine with aqueous polyurethane
The fitting of fiber synthetic leather bass, obtains the aqueous polyurethane superfine fiber synthetic leather semi-finished product.
3. a kind of preparation method of super-hydrophobic super fiber leather according to claim 2, which is characterized in that step (2) includes such as
Lower subdivided step: spraying after the aqueous polyurethane superfine fiber synthetic leather semi-finished product are carried out cleaning and Wear-resistant Treatment or coating
Or the dipping super-hydrophobic arrangement composite mortar, high temperature are torn the silicone oil paper after baking, and obtain aqueous polyurethane superfine fibre
Synthetic leather products.
4. a kind of preparation method of super-hydrophobic super fiber leather according to claim 2, which is characterized in that the aqueous polyurethane
Compound starch adhesive is as follows by the component proportion of mass fraction: 50-80 parts of waterborne polyurethane resin, superfine modified micronized polyethylene wax
0.5-2 parts, aqueous siloxanes 1-3 parts, 0.1-0.5 parts of Sodium Polyacrylate, 0.1-0.5 parts of glycerin polyoxyethylene ether, peroxidating two
It is 0.5-2 parts of isopropylbenzene, 0.5-2 parts of superfine white carbon black, 5-10 parts of ammonium stearate emulsion, 0.2-0.5 parts of silicone softening agent, aqueous
3-10 parts of colorant.
5. a kind of preparation method of super-hydrophobic super fiber leather according to claim 2, which is characterized in that take microwave heating or
Infrared heating dries the compound starch adhesive of aqueous polyurethane on the silicone oil paper surface, and 50-150 DEG C of heating temperature.
6. a kind of preparation method of super-hydrophobic super fiber leather according to claim 5, which is characterized in that microwave heating is taken to dry
Dry, microwave frequency 1000-3500MHz, the microwave time is 1-10min, and temperature is 50-150 DEG C.
7. a kind of preparation method of super-hydrophobic super fiber leather according to claim 1, which is characterized in that the super-hydrophobic arrangement
Composite mortar is as follows by the component proportion of mass fraction: 0.5-2 parts of the leather coating compound penetrant, hydroxypropyl terminated poly- silicon
5-10 parts of siloxane modified aqueous polyurethane, 35-50 parts of water.
8. a kind of preparation method of super-hydrophobic super fiber leather according to claim 7, which is characterized in that the leather coating is multiple
It closes bleeding agent to be made by a variety of proportion of surfactant, the surfactant is selected from two classes of following surfactant or more:
Cationic surfactant, anionic surfactant, nonionic surfactant, oil-based surfactant, chelating type surface
Activating agent.
9. a kind of preparation method of super-hydrophobic super fiber leather according to claim 8, which is characterized in that the leather coating is multiple
It is obtained by being sufficiently mixed with the various ingredients in the following group to close bleeding agent: neopelex, fatty alcohol polyoxyethylene ether, Asia
Numb acid, aerosol-OT salt, styrene, ethylenediamine tetra-acetic acid, sodium alklyarylsulfonate, fatty alcohol succinate.
10. a kind of preparation method of super-hydrophobic super fiber leather according to claim 7, which is characterized in that the hydroxypropyl envelope
Polysiloxane-modified aqueous polyurethane is held to be made by the preparation method included the following steps:
(1) containing hydrogen silicone oil and propenyl, the quality point of the containing hydrogen silicone oil and the propenyl are sequentially added in the reaction vessel
Number proportion is 1:(2-5), and microwave heating is to 40-55 DEG C after uniform stirring；
(2) 15-25ppm catalyst reaction 5-10min is added in the reaction vessel, subsequent microwave heating is to 60-75 DEG C
React 2-4h；
(3) finally decompression rotary evaporation removes low-boiling-point substance, obtains the hydroxypropyl terminated polysiloxane modified aqueous polyurethane.
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