CN105926308A - Formula and technology for producing synthetic leather from graphene modified waterborne polyurethane - Google Patents

Formula and technology for producing synthetic leather from graphene modified waterborne polyurethane Download PDF

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Publication number
CN105926308A
CN105926308A CN201610311936.5A CN201610311936A CN105926308A CN 105926308 A CN105926308 A CN 105926308A CN 201610311936 A CN201610311936 A CN 201610311936A CN 105926308 A CN105926308 A CN 105926308A
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Prior art keywords
graphene modified
synthetic leather
aqueous polyurethane
coating
modified aqueous
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CN201610311936.5A
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Chinese (zh)
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宋婷婷
宋金火
宋林涛
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宋婷婷
宋林涛
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Priority to CN201610311936.5A priority Critical patent/CN105926308A/en
Publication of CN105926308A publication Critical patent/CN105926308A/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02Organic and inorganic ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/09Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098Metal salts of carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056Artificial 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
    • D06N3/0063Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12Artificial 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
    • D06N3/14Artificial 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
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2203/00Macromolecular materials of the coating layers
    • D06N2203/06Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/068Polyurethanes
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2205/00Condition, form or state of the materials
    • D06N2205/04Foam
    • D06N2205/045Froth
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/04Properties of the materials having electrical or magnetic properties
    • D06N2209/046Anti-static
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/06Properties of the materials having thermal properties
    • D06N2209/067Flame resistant, fire resistant
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/12Permeability or impermeability properties
    • D06N2209/121Permeability to gases, adsorption
    • D06N2209/123Breathable
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, 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
    • D06N2209/00Properties of the materials
    • D06N2209/14Properties of the materials having chemical properties
    • D06N2209/142Hydrophobic

Abstract

The invention discloses a formula for producing synthetic leather from graphene modified waterborne polyurethane. The formula comprises a coating solution. The coating solution comprises 51-88.999% of waterborne polyurethane emulsion, 5-15% of filler, 3-10% of stearic acid ammonium emulsion, 0.5-3% of foaming agent, 0.001-1% of graphene, 0.5-10% of water-based color paste, 0.5-2% of ammonium hydroxide, 0.5-5% of flatting agent and 1-3% of thickener. The technology comprises the steps of adding raw materials in the formula, and conducting stirring, filtration and viscosity regulation to obtain the coating solution; making the coating solution into coating foams, and applying the coating foams onto a leather base cloth; conducting drying to obtain a foam base; conducting aftertreatment to obtain the graphene modified waterborne polyurethane synthetic leather. By producing the foaming synthetic leather from graphene modified waterborne polyurethane, the wear resistance of a membrane is improved greatly, the dry transfer coating procedure is omitted, and antistatic, flame retardant and waterproof effects are realized.

Description

A kind of Graphene modified aqueous polyurethane produces formula and the technique of synthetic leather
[technical field]
The present invention relates to synthetic leather and the technical field of after-finishing of textile products technology, particularly a kind of Graphene changes Property aqueous polyurethane produce the formula of synthetic leather and the technical field of technique.
[background technology]
China as artificial leather synthetic leather big producing country, enterprise production, total industrial output value steady-state growth same Time, the pressure faced is the most increasing, especially exports European market.Europe chemistry management board formally announces 8th batch pays high attention to material candidate list, including DMF (DMF).These rule Fixed appearance, proposes baptism to synthetic leather manufacturing enterprise again.Manufacturing enterprise of China uses substantially Traditional solvent type polyurethane resin manufactures synthetic leather, and solvent is poisonous as the disperse medium major part of resin The organic solvents such as harmful dimethylformamide, toluene, acetone, butanone, its content in resin is up to 70 %-80%.These solvents can't reclaim at present completely, not only causes environmental pollution, Er Qie at product end In production process, serious harm employee is healthy.
Synthetic leather in the market has oiliness and aqueous two kinds, and oiliness synthetic leather is substantial amounts of molten owing to employing Agent and be phased out, the production technology of a kind of so-called Waterborne synthetic leather mainly uses aqueous Polyurethane first carries out coating in leather base cloth, then carries out solidification solidification in the water containing calcium chloride, due to Solidification process has certain gas produce, the most comparatively speaking the feel of bass can be had some improvement, But effect is not clearly.At present the production technology of oiliness and Waterborne synthetic leather be typically all bass pad pasting again after Processing, the wear resistance being primarily due to bass is inadequate, is only increased the wear resistance on its surface by pad pasting, But synthetic leather all can affect feel after pad pasting, and cost also can be significantly increased, and aqueous foaming bass passes through Just not having breathability after pad pasting, this is maximum product defects.
[summary of the invention]
The purpose of the present invention solves the problems of the prior art exactly, proposes a kind of poly-ammonia of Graphene modified water-soluble Ester produces the formula of synthetic leather and technique, by Graphene modified aqueous polyurethane, and producing foamed synthetic leather, The wear resistance of its film has had and has been substantially improved, and saves the operation of dry-method film coating, and give synthetic leather antistatic, Fire-retardant and waterproof special-effect.
For achieving the above object, the present invention proposes a kind of Graphene modified aqueous polyurethane and produces synthetic leather Formula, including coating solution;Described coating solution includes that following components and each component ratio are:
As preferably, described ammonium stearate emulsion includes component: stearic acid, ammonia, sodium lauryl sulphate, Water.
As preferably, described ammonia is 20% ammonia, ammonium stearate emulsion component ratio be stearic acid 15%~35%, Ammonia 6%~14%, sodium lauryl sulphate 1%~3%, surplus are water.
The present invention proposes a kind of Graphene modified aqueous polyurethane and produces the technique of synthetic leather, including specifically walking Rapid as follows:
A) prepared coating liquid, puts into container by coating solution raw material in addition to thickening agent according to formula proportion, with dispersion Blender stirs, and after filtration, adds thickening agent regulation viscosity;
B) coating solution prepared is made coating foams by Intelligent Dynamic foam maker, then coating is steeped Foam body is coated in leather base cloth, and coating amount is accurately controlled by computer, and applied thickness is according to difference leather system Product require to adjust;
C) by oven for drying after having applied, Graphene modified aqueous polyurethane foaming bass is obtained;
D) by Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
As preferably, in described a) step, the mixing speed of dispersator is 500~2900 revs/min.
As preferably, in described b) step, leather base cloth includes looped fabric, woven fabric, non-woven fabrics, super fine nothing Spin cloth, corium.
As preferably, in described b) step, the expansion ratio of coating solution is 1~15 times.
As preferably, in described b) step, the mode of coating foam application to leather base cloth is cutter painting, roller coating Or roller coat.
As preferably, in described c) step, the drying temperature of baking oven is 50 DEG C~200 DEG C, carries out multistage temperature Control, temperature-gradient method.
Beneficial effects of the present invention: the present invention passes through Graphene modified aqueous polyurethane, uses intumescent coating Method produces the technique of synthetic leather bass, the aqueous polyurethane modification by Graphene, the foaming produced Bass, the wear resistance of its film is considerably beyond traditional pad pasting fastness, and breathability is the best, and feel is more Add plentiful smooth softness.Imparting synthetic leather antistatic, fire-retardant and waterproof special-effect, this is that aqueous is gathered The important breakthrough again of urethane synthetic leather production technology.
Inventive feature and advantage will be described in detail by embodiment.
[detailed description of the invention]
The present invention a kind of Graphene modified aqueous polyurethane produces the formula of synthetic leather, including coating solution;Described Coating solution includes that following components and each component ratio are:
Described ammonium stearate emulsion includes component: stearic acid, ammonia, sodium lauryl sulphate, water.Described Ammonia is 20% ammonia, and ammonium stearate emulsion component ratio is stearic acid 20%, ammonia 7%, lauryl sulphate acid Sodium 1%, surplus are water.
A kind of Graphene modified aqueous polyurethane produces the technique of synthetic leather, including specifically comprising the following steps that
A) prepared coating liquid, puts into container by coating solution raw material in addition to thickening agent according to formula proportion, with dispersion Blender stirs, and after filtration, adds thickening agent regulation viscosity;
B) coating solution prepared is made coating foams by Intelligent Dynamic foam maker, then coating is steeped Foam body is coated in leather base cloth, and coating amount is accurately controlled by computer, and applied thickness is according to difference leather system Product require to adjust;
C) by oven for drying after having applied, Graphene modified aqueous polyurethane foaming bass is obtained;
D) by Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
In described a) step, the mixing speed of dispersator is 500~2900 revs/min.Described b) step In Zhou, leather base cloth includes looped fabric, woven fabric, non-woven fabrics, super fine non-woven fabrics, corium.Described b) step In, the expansion ratio of coating solution is 1~15 times.In described b) step, coating foam application is to leather base cloth Mode be cutter be coated with, roller coating or roller coat.In described c) step, the drying temperature of baking oven is 50 DEG C~200 DEG C, carry out multistage temperature control, temperature-gradient method.
Embodiment 1:
Prepared coating liquid, in following ratio:
It is sequentially added into the raw material in addition to thickening agent of formula ratio in a reservoir, uniform with dispersator, The mixing speed of dispersator is 1200 revs/min, after filtration, adds thickening agent regulation viscosity, is coated with Layer liquid.
The coating solution prepared is made 8 times of coating foams by Intelligent Dynamic foam maker, then will be coated with Layer foam application in leather base cloth, application pattern be cutter be coated with, roller coating or roller coat, coating amount is by computer Accurately controlling, applied thickness requires to adjust according to different leather goods.
By oven for drying after having applied, carrying out multistage temperature control, temperature-gradient method, temperature is 50 DEG C~160 DEG C, obtain feel the most soft whippy Graphene modified aqueous polyurethane foaming bass.
By Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
Embodiment 2:
Prepared coating liquid, in following ratio:
It is sequentially added into the raw material in addition to thickening agent of formula ratio in a reservoir, uniform with dispersator, The mixing speed of dispersator is 1500 revs/min, after filtration, adds thickening agent regulation viscosity, is coated with Layer liquid.
The coating solution prepared is made 10 times of coating foams by Intelligent Dynamic foam maker, then will be coated with Layer foam application in leather base cloth, application pattern be cutter be coated with, roller coating or roller coat, coating amount is by computer Accurately controlling, applied thickness requires to adjust according to different leather goods.
By oven for drying after having applied, carrying out multistage temperature control, temperature-gradient method, temperature is 50 DEG C~180 DEG C, obtain feel the most soft whippy Graphene modified aqueous polyurethane foaming bass.
By Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
Embodiment 3:
Prepared coating liquid, in following ratio:
It is sequentially added into the raw material in addition to thickening agent of formula ratio in a reservoir, uniform with dispersator, The mixing speed of dispersator is 1800 revs/min, after filtration, adds thickening agent regulation viscosity, is coated with Layer liquid.
The coating solution prepared is made 15 times of coating foams by Intelligent Dynamic foam maker, then will be coated with Layer foam application in leather base cloth, application pattern be cutter be coated with, roller coating or roller coat, coating amount is by computer Accurately controlling, applied thickness requires to adjust according to different leather goods.
By oven for drying after having applied, carrying out multistage temperature control, temperature-gradient method, temperature is 50 DEG C~200 DEG C, obtain feel the most soft whippy Graphene modified aqueous polyurethane foaming bass.
By Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
The present invention, by Graphene modified aqueous polyurethane, uses the method for intumescent coating to produce synthetic leather shellfish This technique, the aqueous polyurethane modification by Graphene, the foaming bass produced, its film wear-resisting Fastness is considerably beyond traditional pad pasting fastness, and breathability is the best, the most plentiful smooth softness of feel. Imparting synthetic leather antistatic, fire-retardant and waterproof special-effect, this is that waterborne polyurethane synthetic leather produces skill The important breakthrough again of art.
Above-described embodiment is the description of the invention, is not limitation of the invention, any simple to the present invention Scheme after conversion belongs to protection scope of the present invention.

Claims (9)

1. Graphene modified aqueous polyurethane produces a formula for synthetic leather, including coating solution;Described coating solution bag Include following components and each component ratio be:
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 1 produces the formula of synthetic leather, its feature It is: described ammonium stearate emulsion includes component: stearic acid, ammonia, sodium lauryl sulphate, water.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 2 produces the formula of synthetic leather, its feature Being: described ammonia is 20% ammonia, ammonium stearate emulsion component ratio is stearic acid 15%~35%, ammonia Water 6%~14%, sodium lauryl sulphate 1%~3%, surplus are water.
4. the technique that a Graphene modified aqueous polyurethane produces synthetic leather, it is characterised in that: include concrete steps As follows:
A) prepared coating liquid, puts into container by coating solution raw material in addition to thickening agent according to formula proportion, with dispersion Blender stirs, and after filtration, adds thickening agent regulation viscosity;
B) coating solution prepared is made coating foams by Intelligent Dynamic foam maker, then coating is steeped Foam body is coated in leather base cloth, and coating amount is accurately controlled by computer, and applied thickness is according to difference leather system Product require to adjust;
C) by oven for drying after having applied, Graphene modified aqueous polyurethane foaming bass is obtained;
D) by Graphene modified aqueous polyurethane foaming bass carry out post processing, post processing include embossing, stamp, Printing or tan stricture of vagina, obtain Graphene modified aqueous polyurethane ecological synthetic leather.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 4 produces the technique of synthetic leather, its feature Being: in described a) step, the mixing speed of dispersator is 500~2900 revs/min.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 4 produces the technique of synthetic leather, its feature Be: in described b) step, leather base cloth include looped fabric, woven fabric, non-woven fabrics, super fine non-woven fabrics, Corium.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 4 produces the technique of synthetic leather, its feature Being: in described b) step, the expansion ratio of coating solution is 1~15 times.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 4 produces the technique of synthetic leather, its feature Be: in described b) step, the mode of coating foam application to leather base cloth be cutter be coated with, roller coating or Roller coat.
A kind of Graphene modified aqueous polyurethane the most as claimed in claim 4 produces the technique of synthetic leather, its feature Being: in described c) step, the drying temperature of baking oven is 50 DEG C~200 DEG C, carries out multistage temperature control, point Duan Shengwen.
CN201610311936.5A 2016-05-12 2016-05-12 Formula and technology for producing synthetic leather from graphene modified waterborne polyurethane CN105926308A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
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CN106519636A (en) * 2016-11-02 2017-03-22 广东顺德艺冠云膜科技股份有限公司 Phytene soft touch film, preparation method and application thereof
CN106702750A (en) * 2016-12-30 2017-05-24 康伦国 Graphene-organosilicon modified urethane resin synthetic leather
CN106948183A (en) * 2017-02-28 2017-07-14 佛山市高明威仕达塑料有限公司 A kind of super abrasive aqueous coating PVC leather and processing technology
CN106988127A (en) * 2017-04-14 2017-07-28 安徽宝博合成革有限公司 A kind of preparation technology of environmentally friendly TPU synthetic leather
CN107022295A (en) * 2017-04-12 2017-08-08 北欧牧风成都家居用品有限公司 Formula of coating solution and preparation method and application
CN107164971A (en) * 2017-04-24 2017-09-15 北欧牧风成都家居用品有限公司 The preparation method of leather and application
CN107904960A (en) * 2017-10-28 2018-04-13 长沙秋点兵信息科技有限公司 A kind of preparation method of smooth type artificial synthetic leather
CN108505350A (en) * 2018-06-01 2018-09-07 广州可那派英皮具有限公司 A kind of composite leather and its manufacturing method
CN108587425A (en) * 2017-05-03 2018-09-28 宋金火 A kind of formula and technique of the photocatalyst aqueous Synthetic Leather of antibacterial
CN108774454A (en) * 2018-07-18 2018-11-09 苏州瑞高新材料有限公司 A kind of preparation method and applications of wear-resisting scratch resistance waterborne surface treatment agent for automobile leather
CN108912653A (en) * 2018-07-18 2018-11-30 华伦皮塑(苏州)有限公司 The preparation method of graphene/waterborne polyurethane conductive composite material for civilian leather and its preparation method of graphene dispersing solution
CN109023985A (en) * 2018-07-18 2018-12-18 苏州瑞高新材料有限公司 A kind of high-tensile waterborne surface treatment agent and preparation method thereof for automobile leather
CN109023977A (en) * 2018-10-22 2018-12-18 江西泽晞新材料有限公司 A kind of water-soluble polyurethane leather beth preparation method
CN109112846A (en) * 2018-07-23 2019-01-01 南通中奥车用新材料有限公司 A kind of high-strength abrasion-proof plated film PVC artificial leather

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Application publication date: 20160907