CN106928421A - A kind of clothing leather soft bed material and preparation method thereof - Google Patents
A kind of clothing leather soft bed material and preparation method thereof Download PDFInfo
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- CN106928421A CN106928421A CN201710241138.4A CN201710241138A CN106928421A CN 106928421 A CN106928421 A CN 106928421A CN 201710241138 A CN201710241138 A CN 201710241138A CN 106928421 A CN106928421 A CN 106928421A
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- clothing leather
- bed material
- soft bed
- polyurethane resin
- waterborne polyurethane
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3234—Polyamines cycloaliphatic
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6523—Compounds of group C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
- C08G18/6529—Compounds of group C08G18/3225 or polyamines of C08G18/38
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/69—Polymers of conjugated dienes
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08L75/08—Polyurethanes from polyethers
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Abstract
The present invention provides a kind of clothing leather soft bed material and its production and use, and clothing leather includes 80~120 parts of waterborne polyurethane resin with soft bed material；0.1~0.4 part of defoamer；0.3~0.6 part of wetting agent；0.5~3 part of thickener.The present invention uses homemade special-purpose aqueous polyurethane resin as the primary raw material of the soft bed material of clothing leather, on the one hand the flexibility of obtained clothing leather can be improved, preferable feel is made it have, on the other hand, waterborne polyurethane resin environment-protecting asepsis, disclosure satisfy that environmental requirement.
Description
Technical field
The present invention relates to clothing leather field, more particularly to a kind of clothing leather soft bed material and preparation method thereof.
Background technology
Clothing leather requirement comfortable feel, relatively soft, water-fastness especially alkaline water etc..Clothing leather except base fabric used and
Precoat is reached outside requirement, and bed material must also reach above-mentioned requirements.Bed material can cause clothing leather feel poor firmly partially, stiff.And make
It is adhesive, adhesion strength is high on the one hand to need it to solidify, and peel strength need to reach requirement, prevent clothing leather fabric in use
Delamination.On the other hand require that low its molecular polarity in other words of its modulus is small, so can just reach the requirement of softness.And low point
Sub- polarity and its peel strength higher are contradiction, how to solve this problem with so that bed material reaches use requirement, while
Accomplish that environment-protecting asepsis are met at this stage to the pursuit of ecological, environmental protective, be nowadays clothing leather industry urgent problem.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of clothing leather with soft bed material and its
Preparation method, for solve clothing leather bed material of the prior art cause firmly partially clothing leather feel difference and the feature of environmental protection difference ask
Topic.
In order to achieve the above objects and other related objects, the present invention provides a kind of soft bed material of clothing leather, the clothing leather
Include following raw material components and weight portion with soft bed material：
Preferably, the waterborne polyurethane resin is 90~100 parts.
Preferably, the defoamer is 0.3~0.4 part.
Preferably, the wetting agent is 0.5~0.6 part.
Preferably, the thickener is 1~2 part.
Preferably, the clothing leather is 8000~12000mpa.s with the viscosity of soft bed material.
Preferably, the clothing leather is 10000mpa.s with the viscosity of soft bed material.
Preferably, the waterborne polyurethane resin includes following raw material components and weight portion：
Preferably, the defoamer be selected from organic silicon, polyethers in one or two.
Preferably, organic silicon defoamer is dimethyl silicone polymer, and polyethers defoamer is polyoxypropylene ethylene oxide
Glycerin ether.
Preferably, the wetting agent is selected from anionic alkyl sulfate, aliphatic acid, fatty acid ester sulfate, carboxylic soap
Class, phosphate, nonionic polyoxyethylene alkyl phenol ether, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymerization
One or more in thing.
Preferably, the thickener be selected from polyacrylate, association type polyurethane in one or two.
Preferably, the preparation process of the waterborne polyurethane resin is as follows：First by macromolecular polyol and polyisocyanates
1~3h of hybrid reaction is carried out at 80~100 DEG C；By temperature adjustment to 70~90 DEG C, hydrophilic chain extender, catalyst and dilute are added
Release agent, 1~3h of hybrid reaction；By temperature adjustment to 10~80 DEG C, organosilicon modifier, 0.5~2h of hybrid reaction are added；Regulation
Temperature is to 50~60 DEG C, plus diluent and mixes；0~25 DEG C is adjusted the temperature to, nertralizer is added, 1~5min of the time is neutralized
Afterwards under high velocity agitation plus emulsified water so that be dispersed into after emulsion state chain extension reagent after adding and reacted, the reaction time 0.1
~1h, finally removes diluent and obtains waterborne polyurethane resin.Its preparation principle is：Diisocyanate and macromolecular polyol are anti-
Should generate base polyurethane prepolymer for use as, then with hydrophilic chain extender reaction, generate the performed polymer containing hydrophilic radical chain link, with nertralizer with
Its reaction, hydrophilic radical is transformed into corresponding salt ion, and water-wetness is more preferable；Disperse at a high speed again, hydrophilic radical ion is by polyurethane
Macromolecular is wrapped up, and is dispersed in water, and forms the form of emulsion, and rear chain extension reagent has activity higher, is added to be formed
Emulsion in after be diffused into emulsion colloidal, further with the isocyanate groups reaction of polyurethane end position, molecular weight is further
Increase, waterborne polyurethane resin can be obtained after finally removing diluent.Waterborne polyurethane resin using macromolecular polyol and
Polyisocyanates provides the soft segment structure of macromolecular, polyisocyanates as the primary raw material for synthesizing, wherein macromolecular polyol
The hard segment structure of macromolecular is provided；Hydrophilic chain extender provides the hydrophilic radical of molecular resin so that aqueous structure is more stable；Catalysis
Agent can promote the reaction to carry out completely, especially low and in the case that polyisocyanic acid ester content is relatively low in reaction temperature, Neng Goujia
What speed was reacted is carried out completely；Added before emulsification diluent be used to reduce in building-up process and before emulsification performed polymer viscosity；Neutralize
Agent can neutralize the hydrophilic radical in hydrophilic chain extender, improve the water-wetness of strand；Emulsified water uses deionized water, for dividing
Scattered macromolecular makes it into emulsion state；Chain extension reagent further improves the molecular weight of resin afterwards, improves mechanical strength of resin and provides hard section.
Preferably, the diluent for being added together with hydrophilic chain extender is 5~10 parts, is added after addition organosilicon modifier
Diluent is 100~150 parts.
Preferably, the macromolecular polyol is selected from polypropylene oxide glycol, castor oil, polyisoprene glycol, poly- different
One or more in butylene glycol, poly- ethanedioic acid isoprene esterdiol, PTMG；The polyisocyanates is selected from
One or more in TDI, MDI, IPDI, HDI, NDI, HMDI；The hydrophilic chain extender is DMPA；The catalyst is selected to be had
One or two in machine bismuth, organic zinc；The organosilicon modifier is amino containing silane coupling agent；The nertralizer is three second
Amine,；The rear chain extension reagent is selected from ethylenediamine, isobutyl diamines, hexamethylene diamine, p dimethylamine, O-phthalic amine, isophorone two
One or more in amine, hexamethylene dimethylamine；The diluent is acetone or butanone.
Preferably, the organo-bismuth is Bismuth Octoate, and the organic zinc is zinc octoate.
Preferably, diluent is removed by way of vacuum distillation, concrete operation step is：At 30~60 DEG C, vacuumize-
Under conditions of 0.07~-0.09MPa, stirring or rotation 2~5h, test result be without acetone or butanone taste odorless, and survey
Examination solid content is up to standard.
Preferably, the amount ratio of the material of the polyisocyanates and macromolecular polyol is 1.5~3.5；It is described hydrophilic
The mass ratio that chain extender accounts for waterborne polyurethane resin gross mass is 1~5%；The organosilicon modifier accounts for waterborne polyurethane resin
The mass ratio of gross mass is 0.1~10%；The amount of the material of the nertralizer account for the amount of the material of hydrophilic chain extender 80%~
120%；The amount of the material of the rear chain extension reagent accounts for the 5%~40% of the amount of the material of the polyisocyanates.
In order to achieve the above objects and other related objects, present invention offer one kind prepares foregoing clothing leather and uses soft bottom
The method of material, it is characterised in that comprise the following steps：Waterborne polyurethane resin, defoamer, wetting agent are stirred mixing,
Thickener is added under the mixing speed of 500~2000r/min so that viscosity obtains clothes by increasing to predetermined viscosity again
Leather uses soft bed material.
In order to achieve the above objects and other related objects, the present invention provides a kind of using such as any one of claim 1 to 8
Described clothing leather carries out the method that clothing leather is manufactured with soft bed material, it is characterised in that comprise the following steps：1) in release liners
The slurry of fabric is scratched, then is baked to be cured to obtain precoat；2) primer is scraped on precoat；3) by base fabric or clothes
Dress leather bass roll-in is fitted on the face for scribbling bed material of precoat, then is baked to solidification acquisition clothing leather.
As described above, clothing leather of the invention soft bed material and preparation method thereof, has the advantages that：Using self-control
Waterborne polyurethane resin as the primary raw material of the soft bed material of clothing leather, on the one hand can improve the softness of obtained clothing leather
Property, preferable feel is made it have, on the other hand, waterborne polyurethane resin environment-protecting asepsis disclosure satisfy that environmental requirement.
Specific embodiment
The present invention is expanded on further with reference to embodiment.It should be understood that embodiment is merely to illustrate the present invention, and it is unrestricted
The scope of the present invention.
It is the proportioning of each raw material components of the soft bed material of clothing leather of the invention in embodiment 1-4 in table 1.
The proportioning of each raw material components of the soft bed material of the clothing leather of table 1
Wherein, each raw material components of the waterborne polyurethane resin in embodiment 1-4 and its proportioning are as shown in table 2：
Each raw material components and its proportioning of the waterborne polyurethane resin of table 2
Embodiment one：
1st, waterborne polyurethane resin is prepared
1) polypropylene oxide glycol 150kg and TDI 35kg are carried out into hybrid reaction 1h at 80 DEG C；
2) by temperature adjustment to 80 DEG C, DMPA3kg, Bismuth Octoate 0.4kg and diluent acetone 5kg, hybrid reaction are added
2h；
3) by temperature adjustment to 20 DEG C, amino containing silane coupling agent KH5501kg, hybrid reaction 1h are added；
4) adjust the temperature to 50 DEG C, plus diluent acetone 120kg and mix；Adjust the temperature to the emulsifying temperature 10 of needs
DEG C, addition triethylamine 2kg is neutralized, and adds emulsified water 300kg under high velocity agitation after neutralizing time 2min so that be dispersed into breast
Add ethylenediamine 1kg after liquid status to be reacted, reaction time 1h；
5) 30 DEG C, vacuumize -0.07MPa under conditions of carry out vacuum distillation, after stirring 2h, test result is without acetone
Taste odorless, and test solid content it is up to standard, will diluent acetone removal, and then obtain waterborne polyurethane resin.
2nd, the soft bed material of clothing leather is prepared
Waterborne polyurethane resin 80kg, the dimethyl silicone polymer (organic silicon defoamer) that will be prepared in step 1
0.2kg, aliphatic acid (wetting agent) 0.4kg are stirred mixing, then thickener poly- third is added under the mixing speed of 600r/min
Olefin(e) acid salt 0.5kg so that viscosity obtains the soft bed material of clothing leather of the invention by increasing to predetermined viscosity 8000mpa.s.
3rd, prepared by clothing leather sample
1) slurry of fabric is scratched in release liners, then is baked to be cured to obtain precoat；
2) bed material of step 2 preparation is scraped on precoat；
3) base fabric or clothing leather bass roll-in are fitted on the face for scribbling bed material of precoat, then are baked to solidification
Obtain clothing leather.
Embodiment two：
1st, waterborne polyurethane resin is prepared
1) polyisoprene glycol 170kg and IPDI 30kg is carried out into hybrid reaction 1.5h at 90 DEG C；
2) by temperature adjustment to 70 DEG C, DMPA5kg, zinc octoate 0.1kg and diluent acetone 8kg, hybrid reaction are added
3h；
3) by temperature adjustment to 10 DEG C, amino containing silane coupling agent KH5500.5kg, hybrid reaction 0.5h are added；
4) adjust the temperature to 55 DEG C, plus diluent acetone 140kg and mix；Adjust the temperature to the emulsifying temperature 15 of needs
DEG C, addition triethylamine 4kg is neutralized, and adds emulsified water 400kg under high velocity agitation after neutralizing time 1min so that be dispersed into breast
Add hexamethylene diamine 4kg after liquid status to be reacted, reaction time 0.6h；
5) 50 DEG C, vacuumize -0.08MPa under conditions of carry out vacuum distillation, after stirring 3h, test result is without acetone
Taste odorless, and test solid content it is up to standard, will diluent acetone removal, and then obtain waterborne polyurethane resin.
2nd, the soft bed material of clothing leather is prepared
Waterborne polyurethane resin 90kg, polyoxypropylene ethylene oxide glycerin ether (the polyethers froth breaking that will be prepared in step 1
Agent) 0.3kg, phosphate (wetting agent) 0.3kg are stirred mixing, then addition thickener gathers under the mixing speed of 800r/min
Acrylates 1kg so that viscosity obtains the soft bed material of clothing leather of the invention by increasing to predetermined viscosity 10000mpa.s.
3rd, prepared by clothing leather sample
1) slurry of fabric is scratched in release liners, then is baked to be cured to obtain precoat；
2) bed material prepared by step 2 is scratched on precoat；
3) base fabric or clothing leather bass roll-in are fitted on the face for scribbling bed material of precoat, then are baked to solidification
Obtain clothing leather.
Embodiment three
1st, waterborne polyurethane resin is prepared
1) PTMG 190kg and NDI40kg is carried out into hybrid reaction 2h at 100 DEG C；
2) by temperature adjustment to 90 DEG C, DMPA4kg, Bismuth Octoate 0.3kg and diluent butanone 10kg, hybrid reaction are added
1h；
3) by temperature adjustment to 50 DEG C, amino containing silane coupling agent Si-6023kg, hybrid reaction 2h are added；
4) adjust the temperature to 60 DEG C, plus diluent butanone 150kg and mix；Adjust the temperature to the emulsifying temperature 25 of needs
DEG C, addition triethylamine 5kg is neutralized, and adds emulsified water 500kg under high velocity agitation after neutralizing time 5min so that be dispersed into breast
Add O-phthalic amine 5kg after liquid status to be reacted, reaction time 0.2h；
5) 60 DEG C, vacuumize -0.09MPa under conditions of carry out vacuum distillation, after stirring 4h, test result is without butanone
Taste odorless, and test solid content it is up to standard, will diluent butanone removing, and then obtain waterborne polyurethane resin.
2nd, the soft bed material of clothing leather is prepared
Waterborne polyurethane resin 100kg, polyoxypropylene ethylene oxide glycerin ether (the polyethers froth breaking that will be prepared in step 1
Agent) 0.1kg, nonionic polyoxyethylene alkyl phenol ether (wetting agent) 0.6kg be stirred mixing, then stirring in 1000r/min
Mix addition thickener association type polyurethane 2kg under speed so that viscosity is obtained by increasing to predetermined viscosity 10000mpa.s
The soft bed material of clothing leather of the invention.
3rd, prepared by clothing leather sample
1) slurry of fabric is scratched in release liners, then is baked to be cured to obtain precoat；
2) bed material prepared by step 2 is scratched on precoat；
3) base fabric or clothing leather bass roll-in are fitted on the face for scribbling bed material of precoat, then are baked to solidification
Obtain clothing leather.
Example IV：
1st, waterborne polyurethane resin is prepared
1) castor oil 200kg and HMDI 37kg are carried out into hybrid reaction 3h at 80 DEG C；
2) by temperature adjustment to 90 DEG C, DMPA4kg, zinc octoate 0.5kg and diluent butanone 5kg, hybrid reaction are added
1h；
3) by temperature adjustment to 80 DEG C, amino containing silane coupling agent Si-6024kg, hybrid reaction 1h are added；
4) adjust the temperature to 50 DEG C, plus diluent butanone 150kg and mix；Adjust the temperature to the emulsifying temperature 10 of needs
DEG C, addition triethylamine 3kg is neutralized, and adds emulsified water 350kg under high velocity agitation after neutralizing time 5min so that be dispersed into breast
Add hexamethylene dimethylamine 3kg after liquid status to be reacted, reaction time 0.4h；
5) 60 DEG C, vacuumize -0.09MPa under conditions of carry out vacuum distillation, after stirring 5h, test result is without butanone
Taste odorless, and test solid content it is up to standard, will diluent butanone removing, and then obtain waterborne polyurethane resin.
2nd, the soft bed material of clothing leather is prepared
Waterborne polyurethane resin 120kg, polyoxypropylene ethylene oxide glycerin ether (the polyethers froth breaking that will be prepared in step 1
Agent) 0.4kg, polyoxyethylene aliphatic alcohol ether (wetting agent) 0.5kg be stirred mixing, then under the mixing speed of 1000r/min
Addition thickener association type polyurethane 3kg so that viscosity obtains of the invention by increasing to predetermined viscosity 12000mpa.s
The soft bed material of clothing leather.
3rd, prepared by clothing leather sample
1) slurry of fabric is scratched in release liners, then is baked to be cured to obtain precoat；
2) bed material prepared by step 2 is scratched on precoat；
3) base fabric or clothing leather bass roll-in are fitted on the face for scribbling bed material of precoat, then are baked to solidification
Obtain clothing leather.
Test result：
Essential characteristic parameter testing is carried out to embodiment 1-4 waterborne polyurethane resins, as a result as shown in table 3：
The essential characteristic parameter testing result of the waterborne polyurethane resin of table 3
Physical and mechanical properties to the waterborne polyurethane resin of embodiment 1-4 is tested, as a result as shown in table 4：
The physical and mechanical properties parameter testing result of the waterborne polyurethane resin of table 4
| Test performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 100% modulus (MPa) | 0.52 | 0.6 | 0.48 | 0.39 |
| Fracture strength (MPa) | 9 | 10 | 8 | 7 |
| Elongation at break (%) | 1200 | 1400 | 1500 | 1300 |
As shown in Table 4,100% modulus of waterborne polyurethane resin of the invention is relatively low, fracture strength and extension at break
Rate is higher, and this illustrates that the soft bed material of clothing leather of the invention not only has preferable intensity also with preferable flexibility, protects
The flexibility of the prepared clothing leather feel of card.
The test of application performance parameter is carried out to the bed material prepared by embodiment 1-4, as a result as shown in table 5：
The bed material application performance parameter testing result of table 5
As can be seen from Table 5：In application of fitting, its peeling force is larger, the clothes after laminating for the bed material of embodiment 1~4
Less than 20%, peeling force loss is less than after resistance to 10%NaOH aqueous solution soakings 18h for peeling force loss after removing from office resistance to 60 DEG C of washings 5min
20%, 70 DEG C of constant temperature and humidities of humidity 90% place peeling force loss in 3 weeks and are less than 30%, the obtained clothing leather of this explanation with compared with
Intensity high, also, prepared clothing leather is soft.
As can be seen here, on the one hand institute can be improved as the primary raw material of clothing leather bed material using waterborne polyurethane resin
The flexibility of obtained clothing leather, with preferable feel, strengthens use intensity；On the other hand, waterborne polyurethane resin environmental protection
It is nontoxic, disclosure satisfy that environmental requirement.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. the soft bed material of a kind of clothing leather, it is characterised in that the clothing leather includes following raw material components and weight with soft bed material
Part：
2. the soft bed material of clothing leather according to claim 1, it is characterised in that：The clothing leather is with the viscosity of soft bed material
8000~12000mpa.s.
3. the soft bed material of clothing leather according to claim 1, it is characterised in that the waterborne polyurethane resin includes following
Raw material components and weight portion：
4. the soft bed material of clothing leather according to claim 1, it is characterised in that：The defoamer is selected from organic silicon, gathers
One or two in ethers.
5. the soft bed material of clothing leather according to claim 1, it is characterised in that：The wetting agent is selected from anionic alkyl
Sulfate, aliphatic acid, fatty acid ester sulfate, carboxylic acid soaps, phosphate, nonionic polyoxyethylene alkyl phenol ether, polyoxy second
One or more in alkene fatty alcohol ether, polyoxyethylene polyoxypropylene block copolymer.
6. the soft bed material of clothing leather according to claim 1, it is characterised in that：The thickener be selected from polyacrylate,
One or two in association type polyurethane.
7. the soft bed material of clothing leather according to claim 3, it is characterised in that the preparation step of the waterborne polyurethane resin
It is rapid as follows：Macromolecular polyol and polyisocyanates are first carried out into 1~3h of hybrid reaction at 80~100 DEG C；By temperature adjustment extremely
70~90 DEG C, add hydrophilic chain extender, catalyst and diluent, 1~3h of hybrid reaction；By temperature adjustment to 10~80 DEG C,
Add organosilicon modifier, 0.5~2h of hybrid reaction；Adjust the temperature to 50~60 DEG C, plus diluent and mix；Regulation temperature
To 0~25 DEG C, nertralizer is added, add emulsified water under high velocity agitation after neutralizing 1~5min of the time so that be dispersed into emulsion state
Chain extension reagent is reacted after adding afterwards, 0.1~1h of reaction time, is finally removed diluent and is obtained waterborne polyurethane resin.
8. the soft bed material of clothing leather according to claim 7, it is characterised in that：The macromolecular polyol is selected from polycyclic oxygen
Propane diol, castor oil, polyisoprene glycol, polyisobutene glycol, poly- ethanedioic acid isoprene esterdiol, PolyTHF
One or more in ether；The polyisocyanates is selected from one or more in TDI, MDI, IPDI, HDI, NDI, HMDI；Institute
Hydrophilic chain extender is stated for DMPA；The catalyst be selected from organo-bismuth, organic zinc in one or two；The organosilicon modifier
It is amino containing silane coupling agent；The nertralizer is triethylamine；The rear chain extension reagent be selected from ethylenediamine, isobutyl diamines, hexamethylene diamine,
One or more in p dimethylamine, O-phthalic amine, isophorone diamine, hexamethylene dimethylamine；The emulsified water for go from
Sub- water；The diluent is acetone or butanone.
9. a kind of clothing leather prepared as any one of claim 1 to 8 method of soft bed material, it is characterised in that bag
Include following steps：Waterborne polyurethane resin, defoamer, wetting agent are stirred mixing, then stirring in 500~2000r/min
Mix and add thickener under speed so that viscosity obtains the soft bed material of clothing leather by increasing to predetermined viscosity.
10. a kind of clothing leather using as any one of claim 1 to 8 carries out the side that clothing leather is manufactured with soft bed material
Method, it is characterised in that comprise the following steps：
1) slurry of fabric is scratched in release liners, then is baked to be cured to obtain precoat；
2) primer is scraped on precoat；
3) base fabric or clothing leather bass roll-in are fitted on the face for scribbling bed material of precoat, then are baked to solidification and obtained
Clothing leather.
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| CN108948315A (en) * | 2018-06-15 | 2018-12-07 | 合肥安利聚氨酯新材料有限公司 | Phenyl modified non yellowing type synthetic leather dry process surface layer polyurethane resin and preparation method thereof |
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| CN110643013A (en) * | 2019-10-08 | 2020-01-03 | 浙江合力革业有限公司 | Novel synthetic leather material and preparation method thereof |
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