CN107057552A - A kind of leather surface treatment agent and preparation method thereof - Google Patents

A kind of leather surface treatment agent and preparation method thereof Download PDF

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Publication number
CN107057552A
CN107057552A CN201710346840.7A CN201710346840A CN107057552A CN 107057552 A CN107057552 A CN 107057552A CN 201710346840 A CN201710346840 A CN 201710346840A CN 107057552 A CN107057552 A CN 107057552A
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China
Prior art keywords
leather
modified
surface treatment
treatment agent
soybean oil
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CN201710346840.7A
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Inventor
刘洪安
何瑞芳
陈仕亨
邓小路
郑建明
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Guangzhou Mingzhi Leather Products Co Ltd
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Guangzhou Mingzhi Leather Products Co Ltd
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Priority to CN201710346840.7A priority Critical patent/CN107057552A/en
Publication of CN107057552A publication Critical patent/CN107057552A/en
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    • 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
    • C09D175/08Polyurethanes from polyethers
    • 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
    • C09D191/00Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
    • 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1606Antifouling paints; Underwater paints characterised by the anti-fouling agent
    • C09D5/1612Non-macromolecular compounds
    • C09D5/1618Non-macromolecular compounds 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1656Antifouling paints; Underwater paints characterised by the film-forming substance
    • C09D5/1662Synthetic film-forming substance
    • 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/32Radiation-absorbing paints
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C11/00Surface finishing of leather
    • C14C11/003Surface finishing of leather using macromolecular compounds
    • C14C11/006Surface finishing of leather using macromolecular compounds using polymeric products of isocyanates (or isothiocyanates) with compounds having active hydrogen
    • 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
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The invention provides a kind of leather surface treatment agent and preparation method thereof.Modified colza and epoxidized soybean oil modified polyurethane resin in leather treatment provided by the present invention effectively can be permeated in leather, leather is set to absorb a certain amount of grease, it is strong to UV absorbing properties, resultant Leather is glossy after stuffing feels, it effectively prevent that leather is hardened, jackknifing, be worthy to be popularized and use;On the other hand, Al2O3Sol-gel modified Leather Waste micro mist forms a kind of polymer with double-layer nanometer layer so that the coating that the leather surface handled by the surface conditioning agent has, and with more stable lasting superpower water repellent, refuses oil, antifouling properties;Touch leather original surface nano-particle can and the bumps of original surface carry out the connection of deep combination, further increase coating and leather, greasy dirt or moisture is not penetrated into inside leather directly, substantially increase water repellent, refuse oil and antifouling property.

Description

A kind of leather surface treatment agent and preparation method thereof
Technical field
The present invention relates to leather processing preparation technique field, and in particular to a kind of leather surface treatment agent and its preparation side Method.
Background technology
With the development of technology, leather and fur products has been realized in diversified production, enriches the life of people.Surface is applied Decorations are the essential processes of leather processing, and it not only assigns leather beautiful outward appearance, it is often more important that obtain the physical property of leather To lifting, as against weather, water resistance, softness, ventilative, permeable etc..In leather finish, in order to reach that high-quality cover with paint, lacquer, colour wash, etc. is imitated Really, the fashion pursuit of people that consumer is continually changing is met, finish auxiliary is very crucial and indispensable.It can adjust covering with paint slurry The levelability of material, improves the film forming of film forming agent, improves the physical property of finished leather, assigns the sense organ style of leather fashion.
But, existing leather surface treatment agent is coated in after leather surface, and its persistence is not good, easily causes the mill of coating Damage, influence the attractive in appearance of leather and use.
Therefore, it is necessary to provide a kind of lasting water repellent, refuse oil, the leather surface treatment agent of antifouling properties and its preparation side Method.
The content of the invention
In order to solve the above problems, the invention provides a kind of leather surface treatment agent and preparation method thereof.
In a first aspect, the invention provides a kind of leather surface treatment agent, the raw material of the leather surface treatment agent, by weight Number meter is measured, including:15~25 parts of modified colza, 30~45 parts of epoxidized soybean oil modified polyurethane resin, deionized water 30 ~45 parts, 1~4 part of silicone emulsion, 0.5~2 part of organic silicon defoamer, 1~5 part of polyurethane associative thickener, gelatin 0.1~ 0.5 part, Al2O3Sol-gel modified 1~5 part of Leather Waste micro mist.
It is further preferred that in the raw material of the leather surface treatment agent, the modified colza and the epoxy soybean The mass ratio of oil modified urethanes resin is 1:1~3.
It is further preferred that in the raw material of the leather surface treatment agent, the modified colza and the epoxy soybean The mass ratio of oil modified urethanes resin is 1:1、1:1.5、1:2、1:2.5 or 1:3.
Preferably, the preparation method of the modified colza, comprises the following steps:According to rapeseed oil, ethylenediamine, three oxidations The mass ratio of aluminium is 100:1.5~3:1~1.5 ratio, the mixture of rapeseed oil, ethylenediamine and alchlor is warming up to 100~120 DEG C, 3~4h of insulation reaction, the mass ratio according still further to acrylic acid and rapeseed oil is 5~10:100 ratio, adds third Olefin(e) acid, is warming up to 125~135 DEG C, modified colza is made in 3~4h of insulation reaction.
It is further preferred that the condition of the ultrasonic processing method is:Frequency be 10~60kHz, power be 100~ 500W。
Preferably, the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, comprises the following steps:
Take the raw material of the epoxidized soybean oil modified polyurethane resin of following portions by weight:It is 15~20 parts of polyisocyanates, many First 20~35 parts of alcohol, 10~20 parts of epoxidized soybean oil, 10~15 parts of diethanol amine, 10~15 parts of the first chain extender, the second chain extension 5~7 parts of agent, 0.1~0.5 part of organic bismuth catalyst, 2~4 parts of organic solvent;After epoxidized soybean oil and diethanol amine are mixed, 50~60 DEG C are warming up under inert gas shielding, 2~3h of insulation reaction obtains the epoxidized soybean oil of open loop;Again by higher alcohols After sulfosuccinate, PPG and the mixing of the epoxidized soybean oil of open loop, 75~85 DEG C are warming up to, 2~3h of insulation reaction, Not higher than 60 DEG C are cooled to, the first chain extender, the second chain extender and organic bismuth catalyst and organic solvent is being added, 65~ 85 DEG C of 3~4h of reaction, after cooling, neutralizing, add frozen water and emulsify at a high speed, 10~15min is reacted adding ethylenediamine dilution, The polyurethane resin that epoxidized soybean oil is modified is made.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyalcohol bag Include but be not limited to polytetramethylene ether diol, polycaprolactone polyol, polycarbonate polyol, PolyTHF ethoxylated polyhydric alcohol, One or more in polyethylene oxide polyol, polyoxypropylene polyol and end hydroxy butadiene.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyalcohol For polytetramethylene ether diol.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyisocyanic acid Ester includes but is not limited to higher alcohols sulfosuccinate, toluene di-isocyanate(TDI), IPDI, diphenyl methane Diisocyanate, hexamethylene diisocyanate, XDI, naphthalene -1,5- diisocyanate, polymethylene are more Phenyl isocyanate, tetramethylxylylene diisocyanate, Methylcyclohexyl diisocyanate and dicyclohexyl methyl hydride two One or more in isocyanates.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, many isocyanides Acid esters is higher alcohols sulfosuccinate.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, first chain extension Agent include but is not limited to dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl valeric acid and dihydroxymethyl octanoic acid in one kind or It is several.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, described first expands Chain agent is dihydromethyl propionic acid.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, second chain extension Agent include but is not limited to ethylene glycol, diglycol, 1,4- butanediols, 2,3- butanediols, 1,6-HD, neopentyl glycol, One or more in diethylene glycol (DEG), glycerine, sorbierite, trimethylolpropane and hydroxymethyl-cyclohexane.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, described second expands Chain agent is 1,4- butanediols.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organo-bismuth is urged One kind that agent includes but is not limited in Coscat83, organo-bismuth 1610, organo-bismuth 2010, organo-bismuth 2810, organo-bismuth 2808 Or it is several.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organo-bismuth Catalyst is organo-bismuth 1610.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organic solvent Including but not limited to acetone.
Preferably, the Al2O3The preparation method of sol-gel modified Leather Waste micro mist, comprises the following steps:By Leather Waste Micro mist is mixed with deionized water stirring, is instilled Alumina gel with 10~15d/min speed, is warming up to and is not less than 60 DEG C, insulation is stirred 1~2h of reaction is mixed, is dried with spray dryer and Al is made2O3Sol-gel modified Leather Waste micro mist, it is standby, wherein, the waste and old skin It is 1 to remove from office micro mist, deionized water, the mass ratio of Alumina gel:3:0.25.
It is 0.05~2nm of average length, straight it is further preferred that the mass fraction of solid is 7~15% in the Alumina gel 0.005~2nm of footpath, in threadiness.
Second aspect, present invention also offers a kind of preparation method of leather surface treatment agent, comprises the following steps:
Take the raw material of the leather surface treatment agent of following portions by weight:15~25 parts of modified colza, epoxidized soybean oil change Property 30~45 parts of polyurethane resin, 30~45 parts of deionized water, 1~4 part of silicone emulsion, 0.5~2 part of organic silicon defoamer, poly- 1~5 part of urethane association thickener, 0.1~0.5 part of gelatin, Al2O3Sol-gel modified 1~5 part of Leather Waste micro mist;
By modified colza, epoxidized soybean oil modified polyurethane resin, deionized water, silicone emulsion, organic silicon defoamer 0.5~2h is mixed, 30~40 DEG C are warming up to, added after gelatin, then first 5~30min of ultrasonication, ground, mistake Filter, obtains emulsion;Polyurethane associative thickener is added, after mixing, Al is added2O3Sol-gel modified Leather Waste micro mist, then second Secondary 10~60min of ultrasonication, is made leather surface treatment agent.
Preferably, in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the modified colza and institute The mass ratio for stating epoxidized soybean oil modified polyurethane resin is 1:1~3.
Preferably, in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the modified colza and institute The mass ratio for stating epoxidized soybean oil modified polyurethane resin is 1:1、1:1.5、1:2、1:2.5 or 1:3.
Preferably, in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the inert gas include but It is not limited to the one or more in nitrogen, argon gas, argon gas, helium.
Preferably, the preparation method of the modified colza, comprises the following steps:According to rapeseed oil, ethylenediamine, three oxidations The mass ratio of aluminium is 100:1.5~3:1~1.5 ratio, rapeseed oil, ethylenediamine, alchlor are mixed, it is warming up to 100~ 120 DEG C, 3~4h of insulation reaction, the mass ratio according still further to acrylic acid and rapeseed oil is 5~10:100 ratio, adds acrylic acid, It is warming up to after 125~135 DEG C, 3~4h of insulation reaction, modified colza is made.
Preferably, the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, comprises the following steps:
Take the raw material of the epoxidized soybean oil modified polyurethane resin of following portions by weight:It is 15~20 parts of polyisocyanates, many First 20~35 parts of alcohol, 10~20 parts of epoxidized soybean oil, 10~15 parts of diethanol amine, 10~15 parts of the first chain extender, the second chain extension 5~7 parts of agent, 0.1~0.5 part of organic bismuth catalyst, 2~4 parts of organic solvent;After epoxidized soybean oil and diethanol amine are mixed, 50~60 DEG C are warming up under the protection of inert gas, 2~3h of insulation reaction obtains the epoxidized soybean oil of open loop;Again by high-carbon After alcohol sulfosuccinate, PPG and the mixing of the epoxidized soybean oil of open loop, 75~85 DEG C are warming up to, insulation reaction 2~ 3h, is cooled to not higher than 60 DEG C, adds the first chain extender, the second chain extender and organic bismuth catalyst and organic solvent, 65~85 DEG C of 3~4h of reaction, are emulsified after cooling, neutralization, are added ethylenediamine dilution and are reacted 10~15min, epoxy is made Soybean oil modified polyurethane resin.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyalcohol bag Include but be not limited to polytetramethylene ether diol, polycaprolactone polyol, polycarbonate polyol, PolyTHF ethoxylated polyhydric alcohol, One or more in polyethylene oxide polyol, polyoxypropylene polyol and end hydroxy butadiene.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyalcohol For polytetramethylene ether diol.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the polyisocyanic acid Ester includes but is not limited to higher alcohols sulfosuccinate, toluene di-isocyanate(TDI), IPDI, diphenyl methane Diisocyanate, hexamethylene diisocyanate, XDI, naphthalene -1,5- diisocyanate, polymethylene are more Phenyl isocyanate, tetramethylxylylene diisocyanate, Methylcyclohexyl diisocyanate and dicyclohexyl methyl hydride two One or more in isocyanates.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, many isocyanides Acid esters is higher alcohols sulfosuccinate.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, first chain extension Agent include but is not limited to dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl valeric acid and dihydroxymethyl octanoic acid in one kind or It is several.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, described first expands Chain agent is dihydromethyl propionic acid.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, second chain extension Agent include but is not limited to ethylene glycol, diglycol, 1,4- butanediols, 2,3- butanediols, 1,6-HD, neopentyl glycol, One or more in diethylene glycol (DEG), glycerine, sorbierite, trimethylolpropane and hydroxymethyl-cyclohexane.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, described second expands Chain agent is 1,4- butanediols.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organo-bismuth is urged One kind that agent includes but is not limited in Coscat83, organo-bismuth 1610, organo-bismuth 2010, organo-bismuth 2810, organo-bismuth 2808 Or it is several.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organo-bismuth Catalyst is organo-bismuth 1610.
It is further preferred that in the preparation method for the polyurethane resin that the epoxidized soybean oil is modified, the organic solvent Including but not limited to acetone.
Preferably, the Al2O3The preparation method of sol-gel modified Leather Waste micro mist, comprises the following steps:By Leather Waste After micro mist is mixed with water, Alumina gel is instilled with 10~15d/min speed, is warming up to and is not less than 60 DEG C, insulated and stirred reaction 1~ 2h, is dried with spray dryer and Al is made2O3Sol-gel modified Leather Waste micro mist, it is standby, wherein, the Leather Waste micro mist, go Ionized water, the mass ratio of Alumina gel are 1:2~4:0.05~0.5.
It is 0.05~2nm of average length, straight it is further preferred that the mass fraction of solid is 7~15% in the Alumina gel 0.005~2nm of footpath, in threadiness.
Preferably, the condition of the first time ultrasonication is:Frequency is that 10~60kHz, power are 100~500W.
Preferably, the condition of second of ultrasonication is:Frequency is that 10~60kHz, power are 100~500W.
Preferably, present invention also offers a kind of leather surface treatment agent, the leather surface treatment agent is using this hair The preparation method of leather surface treatment agent described in bright second aspect is made.
Beneficial effect of the present invention relative to prior art:
(1) modified colza and epoxidized soybean oil modified polyurethane resin effectively can be permeated in leather, absorb leather A certain amount of grease, strong to UV absorbing properties, resultant Leather is glossy after stuffing feels, effectively prevent leather it is hardened, folding Split, be worthy to be popularized and use;
(2)Al2O3Sol-gel modified Leather Waste micro mist forms a kind of polymer with nanometer layer so that pass through the surface The coating that the leather surface of inorganic agent processing has, with more stable lasting superpower water repellent, refuses oil, antifouling properties;Contact To leather original surface nano-particle can and the bumps of original surface carry out deep combination, further increase coating and leather Connection, makes greasy dirt or moisture not to penetrate into inside leather directly, substantially increases water repellent, refuses oil and antifouling property.
Embodiment
Below by embodiment, the present invention is described in detail.
Embodiment 1
The embodiments of the invention provide a kind of preparation method of leather surface treatment agent, comprise the following steps:
(1) preparation of modified colza:Mass ratio according to rapeseed oil, ethylenediamine, alchlor is 100:2:1 ratio Example, rapeseed oil, ethylenediamine, alchlor are mixed, 100 DEG C are warming up to, insulation reaction 3h, according still further to acrylic acid and rapeseed oil Mass ratio is 8:100 ratio, adds acrylic acid, is warming up to after 125 DEG C, insulation reaction 4h, and modified colza is made, standby;
(2) preparation for the polyurethane resin that epoxidized soybean oil is modified:Take the epoxidized soybean oil of following portions by weight to be modified to gather The raw material of urethane resin:15 parts of higher alcohols sulfosuccinate, 20 parts of PPG (Mn=1000, N-210), epoxy soybean 10 parts of oil, 10 parts of diethanol amine, 10 parts of dihydromethyl propionic acid, 5 parts of diethylene glycol (DEG), 1,610 0.2 parts of organo-bismuth, 2 parts of acetone;By ring Oxygen soybean oil and diethanol amine are added in four-hole bottle, 50 DEG C are warming up under the protection of nitrogen, insulation reaction 2h obtains open loop Epoxidized soybean oil, then by after the mixing of higher alcohols sulfosuccinate, PPG and the epoxidized soybean oil of open loop, it is warming up to 85 DEG C, insulation reaction 2h is cooled to not higher than 60 DEG C, adds dihydromethyl propionic acid, diethylene glycol (DEG) and organo-bismuth 1610 and acetone, 4h is reacted at 65 DEG C, after cooling, neutralizing, frozen water is added and emulsifies at a high speed, ethylenediamine dilution reaction 10min is added, is made The polyurethane resin that epoxidized soybean oil is modified, it is standby;
(3)Al2O3The preparation of sol-gel modified Leather Waste micro mist:Leather Waste micro mist is mixed with deionized water stirring, with 10d/min speed instills Alumina gel, and (in Alumina gel, the mass fraction of solid is 7%, and average length 1nm, diameter 0.5nm are in Threadiness) 60 DEG C are warming up to, insulated and stirred reaction 1h is dried with spray dryer and Al is made2O3Sol-gel modified Leather Waste is micro- Powder, it is standby, wherein, the Leather Waste micro mist, deionized water, the mass ratio of Alumina gel are 1:3:0.25;
(4) preparation of leather surface treatment agent:Modified colza obtained by step (1), the epoxy obtained by step (2) is big Soya-bean oil modified polyurethane resin, deionized water, silicone emulsion, organic silicon defoamer mix 2h, are warming up to 35 DEG C, add bright Glue, then in frequency be that 50kHz, power are that ground, filtering obtains emulsion under conditions of 500W after ultrasonication 10min;Again Polyurethane associative thickener is added, is stirred, the Al obtained by step (3) is added2O3Sol-gel modified Leather Waste micro mist, then It is that 50kHz, power are ultrasonication 20min under conditions of 500W in frequency, leather surface treatment agent one is made;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Sequence number Material name Parts by weight/part
1 Modified colza obtained by step (1) 30
2 Epoxidized soybean oil modified polyurethane resin obtained by step (2) 30
3 Deionized water 40
4 Silicone emulsion 2
5 Organic silicon defoamer 1
6 Gelatin 0.2
7 Polyurethane associative thickener 2
8 Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist 4
Embodiment 2
In order to further illustrate beneficial effects of the present invention, the step of repeating the embodiment of the present invention 1 (1), step (2) and Step (3), then by the modified colza obtained by step (1), the epoxidized soybean oil modified polyurethane resin obtained by step (2), go Ionized water, silicone emulsion, organic silicon defoamer mix 2h, are warming up to 35 DEG C, add gelatin, then in frequency are 50kHz, work( After rate is ultrasonication 10min under conditions of 500W, ground, filtering obtains emulsion;Add the thickening of polyurethane association type Agent, stirs, and adds the Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist, then in frequency be that 50kHz, power are Ultrasonication 20min under conditions of 500W, is made leather surface treatment agent two;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Sequence number Material name Parts by weight/part
1 Modified colza obtained by step (1) 20
2 Epoxidized soybean oil modified polyurethane resin obtained by step (2) 30
3 Deionized water 40
4 Silicone emulsion 2
5 Organic silicon defoamer 1
6 Gelatin 0.2
7 Polyurethane associative thickener 2
8 Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist 4
Embodiment 3
In order to further illustrate beneficial effects of the present invention, the step of repeating the embodiment of the present invention 1 (1), step (2) and Step (3), then by the modified colza obtained by step (1), the epoxidized soybean oil modified polyurethane resin obtained by step (2), go Ionized water, silicone emulsion, organic silicon defoamer mix 2h, are warming up to 35 DEG C, add gelatin, then in frequency are 50kHz, work( After rate is ultrasonication 10min under conditions of 500W, ground, filtering obtains emulsion;Add the thickening of polyurethane association type Agent, stirs, and adds the Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist, then in frequency be that 50kHz, power are Ultrasonication 20min under conditions of 500W, is made leather surface treatment agent three;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Embodiment 4
In order to further illustrate beneficial effects of the present invention, the step of repeating the embodiment of the present invention 1 (1), step (2) and Step (3), then by the modified colza obtained by step (1), the epoxidized soybean oil modified polyurethane resin obtained by step (2), go Ionized water, silicone emulsion, organic silicon defoamer mix 2h, are warming up to 35 DEG C, add gelatin, then in frequency are 50kHz work( After rate is ultrasonication 10min under conditions of 500W, ground, filtering obtains emulsion;Add the thickening of polyurethane association type Agent, stirs, and adds the Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist, then in frequency be that 50kHz power is Ultrasonication 20min under conditions of 500W, is made leather surface treatment agent four;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Sequence number Material name Parts by weight/part
1 Modified colza obtained by step (1) 18
2 Epoxidized soybean oil modified polyurethane resin obtained by step (2) 45
3 Deionized water 40
4 Silicone emulsion 2
5 Organic silicon defoamer 1
6 Gelatin 0.2
7 Polyurethane associative thickener 2
8 Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist 4
Embodiment 5
In order to further illustrate beneficial effects of the present invention, the step of repeating the embodiment of the present invention 1 (1), step (2) and Step (3), then by the modified colza obtained by step (1), the epoxidized soybean oil modified polyurethane resin obtained by step (2), go Ionized water, silicone emulsion, organic silicon defoamer mix 2h, are warming up to 35 DEG C, add gelatin, then in frequency are 50kHz work( After rate is ultrasonication 10min under conditions of 500W, ground, filtering obtains emulsion;Add the thickening of polyurethane association type Agent, stirs, and adds the Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist, then in frequency be that 50kHz power is Ultrasonication 20min under conditions of 500W, is made leather surface treatment agent five;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Effect example 1
Inorganic agent obtained by embodiment 1~5 is used to handle with batch leather, and performance survey is carried out to the leather after processing It is fixed, as a result as shown in table 1.
Influence of the different disposal agent of table 1 to leather texture
As shown in Table 1, with modified colza and epoxidized soybean oil modified polyurethane resin weight than increase, leather table The pliability of face inorganic agent is significantly increased, when the weight ratio is 1:During 1~3 interval, the pliability change of leather surface treatment agent It is unobvious;And when modified colza and epoxidized soybean oil modified polyurethane resin weight ratio are 1:When 2, leather surface treatment agent pair Mould inhibiting rate is best.
Embodiment 6
The embodiments of the invention provide a kind of preparation method of leather surface treatment agent, comprise the following steps:
(1) preparation of modified colza:Mass ratio according to rapeseed oil, ethylenediamine, alchlor is 100:3:1.5 ratio Example, rapeseed oil, ethylenediamine, alchlor are mixed, 120 DEG C are warming up to, insulation reaction 4h, according still further to acrylic acid and rapeseed oil Mass ratio is 5:100 ratio, adds acrylic acid, is warming up to after 135 DEG C, insulation reaction 3h and modified colza is made, standby;
(2) preparation for the polyurethane resin that epoxidized soybean oil is modified:Take the epoxidized soybean oil of following portions by weight to be modified to gather The raw material of urethane resin:20 parts of higher alcohols sulfosuccinate, 35 parts of PPG (Mn=1000, N-210), epoxy soybean 17 parts of oil, 15 parts of diethanol amine, 15 parts of dihydromethyl propionic acid, 7 parts of diethylene glycol (DEG), 1,610 0.2 parts of organo-bismuth, 4 parts of acetone;By ring Oxygen soybean oil and diethanol amine are added in four-hole bottle, 60 DEG C are warming up under the protection of nitrogen, insulation reaction 3h obtains open loop Epoxidized soybean oil, then by after the mixing of higher alcohols sulfosuccinate, PPG and the epoxidized soybean oil of open loop, it is warming up to 75 DEG C, insulation reaction 3h is cooled to not higher than 60 DEG C, sequentially adds dihydromethyl propionic acid, diethylene glycol (DEG) and the and of organo-bismuth 1610 Acetone, 3h is reacted at 75 DEG C, after cooling, neutralizing, and is added frozen water and is emulsified at a high speed, adds ethylenediamine dilution reaction 15min, The polyurethane resin that epoxidized soybean oil is modified is made, it is standby;
(3)Al2O3The preparation of sol-gel modified Leather Waste micro mist:Leather Waste micro mist is mixed with deionized water stirring, with 15d/min speed instill Alumina gel (in Alumina gel, the mass fraction of solid is 15%, average length 1nm, diameter 0.1nm, In threadiness) 60 DEG C are warming up to, insulated and stirred reaction 1h is dried with spray dryer and Al is made2O3Sol-gel modified Leather Waste is micro- Powder, it is standby, wherein, the Leather Waste micro mist, deionized water, the mass ratio of Alumina gel are 1:4:0.5;
(4) preparation of leather surface treatment agent:Modified colza obtained by step (1), the epoxy obtained by step (2) is big Soya-bean oil modified polyurethane resin, deionized water, silicone emulsion, organic silicon defoamer mix 0.5h, are warming up to 35 DEG C, addition Gelatin, then in frequency be that 50kHz, power are that ground, filtering obtains emulsion under conditions of 500W after ultrasonication 10min; Polyurethane associative thickener is added, is stirred, the Al obtained by step (3) is added2O3Sol-gel modified Leather Waste micro mist, It is again that 50kHz, power are ultrasonication 20min under conditions of 500W in frequency, leather surface treatment agent six is made;
Wherein, in step (4), the parts by weight of each raw material are as follows:
Sequence number Material name Parts by weight/part
1 Modified colza obtained by step (1) 20
2 Epoxidized soybean oil modified polyurethane resin obtained by step (2) 40
3 Deionized water 40
4 Silicone emulsion 2
5 Organic silicon defoamer 1
6 Gelatin 0.2
7 Polyurethane associative thickener 2
8 Al obtained by step (3)2O3Sol-gel modified Leather Waste micro mist 4
Embodiment 7
In order to further illustrate beneficial effects of the present invention, step (1) in the embodiment of the present invention 6, step (2), step are repeated Suddenly (3), step (4), by the step of the embodiment of the present invention 6 (4) " mix 0.5h " be substituted for " mix 1h ", it is " mixed Stirring 2h " is closed, " 3h " is mixed, " mixes 4h ", leather surface treatment agent seven, leather surface treatment agent is respectively prepared 8th, leather surface treatment agent nine, leather surface treatment agent ten.
Effect example 2
Inorganic agent obtained by embodiment 6~7 is used to handle with batch leather, and performance survey is carried out to the leather after processing It is fixed, as a result as shown in table 2.
Influence of the different disposal agent of table 2 to leather texture and fungistatic effect
As shown in Table 2, with the increase of the time of mixing, Al is conducive to2O3Sol-gel modified Leather Waste micro mist formation one The polymer with nanometer layer is planted so that the coating that the leather surface handled by the surface conditioning agent has, with more steady Determine lasting superpower water repellent, refuse oil, antifouling properties;Touching the nano-particle of leather original surface can enter with the bumps of original surface The deep combination of row, further the connection of increase coating and leather, makes greasy dirt or moisture not to penetrate into inside leather directly, significantly Improve water repellent, refuse oil and antifouling property.
Embodiment 7
In order to further illustrate beneficial effects of the present invention, the step of repeating the embodiment of the present invention 3 (1), step (2), step Suddenly (3) and step (4), then by " rapeseed oil " in step (1) replace respectively into " tung oil ", " soybean oil ", " sunflower oil ", " peanut oil ", is made leather surface treatment agent 11, leather surface treatment agent 12, leather surface treatment agent 13, skin respectively Remove from office surface conditioning agent 14.
Effect example 3
Inorganic agent obtained by embodiment 6 is used to handle with batch leather, and performance measurement is carried out to the leather after processing, As a result it is as shown in table 3.
Influence of the different disposal agent of table 3 to leather texture and fungistatic effect
As shown in Table 3, it is best using the fungistatic effect of rapeseed oil leather surface treatment agent three made from raw material, and pliability Most preferably.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's Protection domain.

Claims (10)

1. a kind of leather surface treatment agent, it is characterised in that the raw material of the leather surface treatment agent, is counted by weight, bag Include:15~25 parts of modified colza, 30~45 parts of epoxidized soybean oil modified polyurethane resin, 30~45 parts of deionized water, emulsification 1~4 part of silicone oil, 0.5~2 part of organic silicon defoamer, 1~5 part of polyurethane associative thickener, 0.1~0.5 part of gelatin, Al2O3 Sol-gel modified 1~5 part of Leather Waste micro mist.
2. leather surface treatment agent as claimed in claim 1, it is characterised in that in the raw material of the leather surface treatment agent, The mass ratio of the modified colza and the epoxidized soybean oil modified polyurethane resin is 1:1~3.
3. leather surface treatment agent as claimed in claim 1, it is characterised in that in the raw material of the leather surface treatment agent, The mass ratio of the modified colza and the epoxidized soybean oil modified polyurethane resin is 1:1、1:1.5、1:2、1:2.5 or 1: 3。
4. a kind of preparation method of leather surface treatment agent, it is characterised in that comprise the following steps:
Take the raw material of the leather surface treatment agent of following portions by weight:15~25 parts of modified colza, epoxidized soybean oil are modified poly- 30~45 parts of urethane resin, 30~45 parts of deionized water, 1~4 part of silicone emulsion, 0.5~2 part of organic silicon defoamer, polyurethane 1~5 part of association thickener, 0.1~0.5 part of gelatin, Al2O3Sol-gel modified 1~5 part of Leather Waste micro mist;
Modified colza, epoxidized soybean oil modified polyurethane resin, deionized water, silicone emulsion, organic silicon defoamer are mixed 0.5~2h is stirred, 30~40 DEG C are warming up to, added after gelatin, then first time 5~30min of ultrasonication, ground, filtering, Obtain emulsion;Polyurethane associative thickener is added, is stirred, Al is added2O3Sol-gel modified Leather Waste micro mist, then second Secondary 10~60min of ultrasonication, is made leather surface treatment agent.
5. the preparation method of leather surface treatment agent as claimed in claim 4, it is characterised in that the system of the modified colza Preparation Method, comprises the following steps:Mass ratio according to rapeseed oil, ethylenediamine, alundum (Al2O3) is 100:1.5~3:1~1.5 Ratio, by the mixture of rapeseed oil, ethylenediamine and alchlor, is warming up to 100~120 DEG C, 3~4h of insulation reaction, according still further to The mass ratio of acrylic acid and rapeseed oil is 5~10:100 ratio, adds acrylic acid, is warming up to 125~135 DEG C, insulation reaction 3 Modified colza is made after~4h.
6. the preparation method of leather surface treatment agent as claimed in claim 4, it is characterised in that the epoxidized soybean oil is modified Polyurethane resin preparation method, comprise the following steps:
Take the raw material of the epoxidized soybean oil modified polyurethane resin of following portions by weight:15~20 parts of polyisocyanates, polyalcohol 20~35 parts, 10~20 parts of epoxidized soybean oil, 10~15 parts of diethanol amine, 10~15 parts of the first chain extender, the second chain extender 5~ 7 parts, 0.1~0.5 part of organic bismuth catalyst, 2~4 parts of organic solvent;After epoxidized soybean oil and diethanol amine are mixed, in inertia 50~60 DEG C are warming up under gas shield, 2~3h of insulation reaction obtains the epoxidized soybean oil of open loop;Again by higher alcohols sulfo group amber After amber acid esters, PPG and the mixing of the epoxidized soybean oil of open loop, 75~85 DEG C are warming up to, 2~3h of insulation reaction is cooled to Not higher than 60 DEG C, the first chain extender, the second chain extender and organic bismuth catalyst and organic solvent are added, it is anti-at 75~85 DEG C 3~4h is answered, is emulsified after cooling, neutralization, ethylenediamine dilution is added and reacts 10~15min, epoxidized soybean oil is made and is modified Polyurethane resin.
7. the preparation method of leather surface treatment agent as claimed in claim 4, it is characterised in that the Al2O3It is sol-gel modified useless The preparation method of old leather micro mist, comprises the following steps:Leather Waste micro mist is mixed with deionized water stirring, with 10~15d/ Min speed instills Alumina gel, is warming up to and is not less than 60 DEG C, insulated and stirred reacts 1~2h, is dried and be made with spray dryer Al2O3Sol-gel modified Leather Waste micro mist, it is standby, wherein, the Leather Waste micro mist, deionized water, the mass ratio of Alumina gel are 1:3:0.25。
8. the preparation method of leather surface treatment agent as claimed in claim 7, it is characterised in that solid in the Alumina gel Mass fraction is 7~15%, 0.05~2nm of average length, 0.005~2nm of diameter, in threadiness.
9. the preparation method of leather surface treatment agent as claimed in claim 4, it is characterised in that at the first time ultrasonic wave The condition of reason is:Frequency is that 10~60kHz, power are 100~500W;The condition of second of ultrasonication is:Frequency It is 100~500W for 10~60kHz, power.
10. a kind of leather surface treatment agent, it is characterised in that be using at the leather surface as described in claim 3~9 is any The preparation method for managing agent is made.
CN201710346840.7A 2017-05-16 2017-05-16 A kind of leather surface treatment agent and preparation method thereof Pending CN107057552A (en)

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Inventor after: Xiong Shaowen

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Application publication date: 20170818