CN108948322A - A kind of waterborne polyurethane resin for sofa artificial leather, preparation method and applications - Google Patents
A kind of waterborne polyurethane resin for sofa artificial leather, preparation method and applications Download PDFInfo
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- CN108948322A CN108948322A CN201810555981.4A CN201810555981A CN108948322A CN 108948322 A CN108948322 A CN 108948322A CN 201810555981 A CN201810555981 A CN 201810555981A CN 108948322 A CN108948322 A CN 108948322A
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- polyurethane resin
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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
- C08G18/70—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
-
- 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
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/28—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
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
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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
- C08G18/28—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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
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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
- C08G18/28—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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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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
- C08G18/28—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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
-
- 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
- C08G18/70—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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- 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
- C08G18/70—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
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
-
- 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
- C08G18/70—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
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7678—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing condensed aromatic rings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention provides a kind of waterborne polyurethane resin for sofa artificial leather, preparation method and applications, and waterborne polyurethane resin includes following raw material components and parts by weight: 150~200 parts of macromolecular polyol；30~45 parts of polyisocyanates；3~5 parts of hydrophilic chain extender；0.1~0.5 part of catalyst；0.5~4 part of organosilicon modifier；2~5 parts of neutralizer；300~400 parts of emulsified water；1~5 part of chain extension reagent afterwards.Waterborne polyurethane resin prepared by the present invention, it is on the one hand environment-protecting and non-poisonous, it can satisfy environmental requirement；On the other hand, prepared resin can fully meet service performance requirement for sofa artificial leather, and have fine flexibility and wear-resisting property；A step feeding method is used in resin synthesis process simultaneously, greatly reduces manpower and material resources cost.
Description
Technical field
The present invention relates to polymeric material fields, more particularly to a kind of waterborne polyurethane resin for sofa artificial leather, system
Preparation Method and its application.
Background technique
Sofa artificial leather requires feel softer, and flexibility is good, and wear-resisting property is excellent.Sofa artificial leather is reached in addition to base fabric used and precoat
Outer to requiring, bottom material must also reach above-mentioned requirements.Bottom material will cause that sofa artificial leather feel is poor, and stiff, comfort is poor, and makees firmly partially
For adhesive, on the one hand needing it to solidify, adhesion strength is high, and peel strength need to reach requirement, guarantee during long term wear not
It can delamination.On the other hand it requires low its molecular polarity in other words of its modulus small, just can achieve flexible requirement in this way.And it is low
Molecular polarity with its higher peel strength be it is contradictory, solvent borne polyurethane adhesive can reach preferable effect at present, but
Solvent type sofa artificial leather has used a large amount of organic solvent DMF in the fabrication process, not only causes pollution, but also product to environment
In remaining solvent also endanger the health of consumer.Waterborne polyurethane resin is widely applied to sofa artificial leather field, is free of benzene
It is the organic solvents such as object, DMF, has the advantages that asepsis environment-protecting, is liked by more and more consumers.But it is existing aqueous poly-
Urethane resin causes made sofa artificial leather to remain unchanged there are flexibility and wear-resisting property are poor etc. and asks there are technical limitation
Topic, and in the prior art, the preparation method of sofa artificial leather resin is cumbersome, and the period is long, consumes a large amount of manpower and material resources.Cause
This, needs to develop the above problem existing for the novel waterborne polyurethane resin solution sofa artificial leather of one kind.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of waterborne polyurethane resins, system
Preparation Method and its application, for solving the above problems.
In order to achieve the above objects and other related objects, the present invention provides a kind of waterborne polyurethane resin, described aqueous poly-
Urethane resin includes following raw material components and parts by weight:
Preferably, the macromolecular polyol is 140~190 parts.
Preferably, the polyisocyanates is 35~38 parts.
Preferably, the hydrophilic chain extender is 4~5 parts.
Preferably, the catalyst is 0.3~0.4 part.
Preferably, the organosilicon modifier is 1~3 part.
Preferably, the neutralizer is 2~4 parts.
Preferably, the emulsified water is 350~400 parts.
Preferably, the rear chain extension reagent is 1~4 part.
Preferably, the macromolecular polyol is selected from polycarbonate glycol, castor oil, polyisoprene glycol, gathers in oneself
One of esterdiol, poly- ethanedioic acid isoprene esterdiol, polytetrahydrofuran ether are a variety of.
Preferably, the polyisocyanates is selected from one of TDI, MDI, IPDI, HDI, NDI, HMDI or a variety of.
Preferably, the mass ratio of the material example of the polyisocyanates and macromolecular polyol is 1.5~3.5.
Preferably, the hydrophilic chain extender is DMPA.
The catalyst is selected from one or both of organo-bismuth, organic zinc.
Preferably, the organo-bismuth is Bismuth Octoate, and the organic zinc is zinc octoate.
Preferably, it is 1~5% that the hydrophilic chain extender, which accounts for the mass ratio of waterborne polyurethane resin gross mass,.
Preferably, the organosilicon modifier is amino containing silane coupling agent.
Preferably, it is 0.1~10% that the organosilicon modifier, which accounts for the mass ratio of waterborne polyurethane resin gross mass,.
Preferably, the neutralizer is triethylamine, and the emulsified water is deionized water.
Preferably, the amount of the substance of the neutralizer accounts for the 80%~120% of the amount of the substance of hydrophilic chain extender.
Preferably, the rear chain extension reagent is selected from ethylenediamine, isobutyl diamines, hexamethylene diamine, p dimethylamine, O-phthalic
One of amine, isophorone diamine, hexamethylene dimethylamine are a variety of.
Preferably, the amount of the substance of the rear chain extension reagent accounts for the 5%~40% of the amount of the substance of the polyisocyanates.
In order to achieve the above objects and other related objects, the present invention, which provides, a kind of prepares foregoing aqueous polyurethane tree
The method of rouge, includes the following steps:
1) by 150~200 parts of macromolecular polyol, 30~45 parts of polyisocyanates, 3~5 parts of hydrophilic chain extenders, 0.1
~0.5 part of catalyst and diluent are stirred to react 6~8h at 60~80 DEG C, and mixing speed is 500~800r/min；
2) the temperature was then adjusted to 30~80 DEG C, 0.5~4 part of organosilicon modifier is added, continue to be stirred to react 0.5~
2h, mixing speed remain 500~800r/min；
3) 50~60 DEG C are adjusted the temperature to, diluent is added and is mixed；0~25 DEG C is adjusted the temperature to, is added in 2~5 parts
And agent, raising mixing speed are 1000~1200r/min, neutralize continue after 1~5min of time under high velocity agitation plus 300~
500 parts of emulsified waters are reacted so that adding 1~5 part of rear chain extension reagent after being dispersed into emulsion state, and the reaction time 0.1~
1h；
4) removing diluent obtains waterborne polyurethane resin.
Preferably, the diluent being added in the step 1) is 5~10 parts, and the diluent being added in the step 3) is
100~150 parts, diluent is acetone or butanone.
Preferably, diluent, concrete operation step are removed by way of vacuum distillation in the step 4) are as follows: 30~
60 DEG C, under conditions of vacuumizing -0.07~-0.09MPa, 2~5h of stirring or rotation, wherein mixing speed is 300~500
Turn/min, the content for testing acetone or butanone is lower than 0.02%, and while testing solid content up to 35%~40% stops reaction.
Preferably, it is added and uses while the macromolecular polyol, polyisocyanates, hydrophilic chain extender and catalyst is added
In the solvent for adjusting solution concentration, the solvent is acetone, butanone, methyl ethyl ketone, N-Methyl pyrrolidone and N, N- dimethyl methyl
One of amide is a variety of.
The effect of the solvent is to adjust the viscosity of reaction solution.The additive amount of the solvent can need to add according to reaction
Add.
11, the solvent is distilled removing in the vacuum distillation stage.Concrete operation step are as follows: at 30~60 DEG C, vacuumize-
Under conditions of 0.07~-0.09MPa, 2~5h of stirring or rotation, wherein mixing speed is 300~500r/min, tests acetone
Or the content of butanone is lower than 0.02%, and while testing solid content up to 35%~40% stops reaction.
The invention also discloses the methods that above-mentioned waterborne polyurethane resin is applied to sofa artificial leather, including sofa artificial leather bottom material
The preparation of preparation and sofa artificial leather sample, the specific steps are as follows:
Step 1: take 80~100 parts the waterborne polyurethane resin according to prepared by claim 8~10,0.1~0.5
The organic silicon defoaming agent, 0.2~1 part of wetting agent of part are stirred mixing, then the mixing speed in 600~1200r/min
Lower 0.5~4 part of addition thickener, so that viscosity increases to scheduled 8000~14000mpa.s of viscosity and obtains sofa artificial leather bottom
Material；
Step 2: the slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；On precoat
Scrape the bottom material of step 1 preparation；
Step 3: base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then dried
Solidization obtains sofa artificial leather.
The main original of waterborne polyurethane resin of the invention using macromolecular polyol and polyisocyanates as synthesis
Material, wherein macromolecular polyol provides the soft segment structure of macromolecular, and polyisocyanates provides the hard segment structure of macromolecular；Hydrophilic expansion
Chain agent provides the hydrophilic radical of molecular resin, so that aqueous structure is more stable；Catalyst can promote fully reacting to carry out, especially
In the case where reaction temperature is low and the lower situation of polyisocyanic acid ester content, the complete progress of reaction can speed up；It is added before emulsification
Diluent is for reducing the viscosity in synthesis process with performed polymer before cream；Neutralizer can neutralize the hydrophilic group in hydrophilic chain extender
Group, improves the water-wetness of strand；Emulsified water uses deionized water, makes it at lotion state for dispersing macromolecular；Chain extension tries afterwards
Agent further increases the molecular weight of resin, improves mechanical strength of resin and provides hard section.
As described above, waterborne polyurethane resin and preparation method thereof of the invention, has the advantages that of the invention
Waterborne polyurethane resin, it is on the one hand environment-protecting and non-poisonous, it can satisfy environmental requirement；On the other hand, prepared binding material is for sand
Hair leather can fully meet service performance requirement, and have quite excellent flexibility and wear-resisting property, while prepared by resin
A step feeding method is used in journey, can substantially reduce manpower and material resources cost.
Specific embodiment
Below with reference to embodiment, the present invention is further explained.It should be understood that embodiment is merely to illustrate the present invention, rather than limit
The scope of the present invention.
Table 1 is each raw material component and its proportion of the waterborne polyurethane resin in embodiment 1-4:
The each raw material component and its proportion of 1 waterborne polyurethane resin of table
Embodiment one
1, waterborne polyurethane resin is prepared
1) by polycarbonate glycol 150g, TDI35g, DMPA4g, Bismuth Octoate 0.3g and diluent acetone 5g, at 60 DEG C
It is stirred to react 7h, mixing speed 600r/min；
2) adjust the temperature to 50 DEG C, KH550 1g be added, continue to be stirred to react 0.5h, mixing speed remain 600 turns/
min；
3) 50 DEG C are adjusted the temperature to, diluent acetone 120g is added and is mixed, 5 DEG C of emulsifying temperature of needs are adjusted the temperature to,
Addition triethylamine 3g is neutralized, and raising mixing speed is 1100r/min, continues to add under high velocity agitation after neutralizing time 2min
Emulsified water 320g is reacted, reaction time 1h so that adding ethylenediamine 2g after being dispersed into emulsion state；
4) 30 DEG C, vacuumize -0.07MPa under conditions of be evaporated under reduced pressure, stir 2h after, wherein mixing speed is
300r/min, the content for testing acetone or butanone is 0.02%, and while testing solid content up to 38% stops reaction；I.e. by diluent
Acetone removal, and then obtain waterborne polyurethane resin.
2, sofa artificial leather bottom material is prepared
The waterborne polyurethane resin 80g prepared in step 1, dimethyl silicone polymer 0.2g, fatty acid 0.4g is taken to be stirred
Mix mixing, then under the mixing speed of 600r/min add thickener polyacrylate 0.5g so that viscosity increase to it is scheduled
Viscosity 8000mpa.s obtains sofa artificial leather bottom material.
3, prepared by sofa artificial leather sample
1) slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；
2) bottom material of step 2 preparation is scraped on precoat；
3) base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then are baked to solidify
Obtain sofa artificial leather.
Embodiment two
1, waterborne polyurethane resin is prepared
1) by polycaprolactone glycol 150g and IPDI40g, DMPA4g, zinc octoate 0.3g and diluent acetone 8g, 65
DEG C it is stirred to react 7h, mixing speed 600r/min；
2) 50 DEG C are adjusted the temperature to, KH550 1.5g is added, continues to be stirred to react 0.5h, mixing speed remains 600r/
min；
3) 50 DEG C are adjusted the temperature to, diluent acetone 120g is added and is mixed, 15 DEG C of emulsifying temperature of needs are adjusted the temperature to,
Addition triethylamine 3g is neutralized, and raising mixing speed is 1200r/min, continues to add under high velocity agitation after neutralizing time 2min
Emulsified water 328g is reacted, reaction time 1h so that adding hexamethylene diamine 2g after being dispersed into emulsion state；
4) 50 DEG C, vacuumize -0.08MPa under conditions of be evaporated under reduced pressure, stir 3h after, wherein mixing speed is
500r/min, the content for testing acetone or butanone is 0.02%, and while testing solid content up to 38% stops reaction, i.e., by diluent
Acetone removal, and then obtain waterborne polyurethane resin.
2, sofa artificial leather is prepared with soft bottom material
By the waterborne polyurethane resin 90g prepared in step 1, polyoxypropylene ethylene oxide glycerin ether 0.3g, phosphate
0.3g is stirred mixing, then thickener polyacrylate 1g is added under the mixing speed of 800r/min, so that viscosity increases
Sofa artificial leather bottom material is obtained to scheduled viscosity 10000mpa.s.
3, prepared by sofa artificial leather sample
1) slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；
2) bottom material prepared by step 2 is scratched on precoat；
3) base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then are baked to solidify
Obtain sofa artificial leather.
Embodiment three
1, waterborne polyurethane resin is prepared
1) it by polycarbonate glycol 150g and NDI 38kg, DMPA4g, Bismuth Octoate 0.3g and diluent butanone 10g, mixes
It closes reaction and is stirred to react 7h, mixing speed 800r/min at 70 DEG C；
2) the temperature was then adjusted to 50 DEG C, amino containing silane coupling agent Si-602 2g is added, continues to be stirred to react 0.5h, stir
Speed remains 800r/min；
3) 50 DEG C are adjusted the temperature to, diluent butanone 150g is added and is mixed；25 DEG C of emulsifying temperature of needs are adjusted the temperature to,
Addition triethylamine 3g is neutralized, and raising mixing speed is 1200r/min, continues to add under high velocity agitation after neutralizing time 2min
Emulsified water 325g is reacted, reaction time 1h so that adding O-phthalic amine 2g after being dispersed into emulsion state；
4) 60 DEG C, vacuumize -0.09MPa under conditions of be evaporated under reduced pressure, stir 4h after, wherein mixing speed is
500r/min, the content for testing acetone or butanone is 0.02%, and while testing solid content up to 38% stops reaction, i.e., by diluent
Butanone removing, and then obtain waterborne polyurethane resin.
2, sofa artificial leather bottom material is prepared
By the waterborne polyurethane resin 100g prepared in step 1, polyoxypropylene ethylene oxide glycerin ether 0.1g, non-ionic
Polyoxyethylated alkyl phenol 0.6g is stirred mixing, then adds thickener association type under the mixing speed of 1000r/min and gather
Urethane 2g, so that viscosity increases to scheduled viscosity 10000mpa.s and obtains sofa artificial leather bottom material.
3, prepared by sofa artificial leather sample
1) slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；
2) bottom material prepared by step 2 is scratched on precoat；
3) base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then are baked to solidify
Obtain sofa artificial leather.
Example IV
1, waterborne polyurethane resin is prepared
1) by polycaprolactone glycol 150g and HMDI 43g, DMPA4g, zinc octoate 0.3g and diluent butanone 5g 75
DEG C it is stirred to react 7h, mixing speed 800r/min；
2) the temperature was then adjusted to 80 DEG C, amino containing silane coupling agent Si-602 2g is added, continues to be stirred to react 0.5h, stir
Speed remains 800r/min；
3) 50 DEG C are adjusted the temperature to, diluent butanone 150g is added and is mixed；10 DEG C of emulsifying temperature of needs are adjusted the temperature to,
Addition triethylamine 3g is neutralized, and raising mixing speed is 1200r/min, continues to add under high velocity agitation after neutralizing time 5min
Emulsified water 335g is reacted, reaction time 1h so that adding hexamethylene dimethylamine 2g after being dispersed into emulsion state；
4) 60 DEG C, vacuumize -0.09MPa under conditions of be evaporated under reduced pressure, stir 5h after, wherein mixing speed is
500r/min, the content for testing acetone or butanone is 0.02%, and while testing solid content up to 38% stops reaction, i.e., by diluent
Butanone removing, and then obtain waterborne polyurethane resin.
2, sofa artificial leather bottom material is prepared
By the waterborne polyurethane resin 120g prepared in step 1, polyoxypropylene ethylene oxide glycerin ether 0.4g, polyoxyethylene
Fatty alcohol ether 0.5g is stirred mixing, then thickener association type polyurethane 3g is added under the mixing speed of 1000r/min, makes
It obtains viscosity and increases to scheduled viscosity 12000mpa.s acquisition sofa artificial leather bottom material.
3, prepared by sofa artificial leather sample
1) slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；
2) bottom material prepared by step 2 is scratched on precoat；
3) base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then are baked to solidify
Obtain sofa artificial leather.
Test result:
Performance parameter test is carried out to embodiment 1-4 waterborne polyurethane resin, the results are shown in Table 2:
The essential characteristic parameter testing result of 2 waterborne polyurethane resin of table
Test can be carried out to the Physical Mechanical of the waterborne polyurethane resin of embodiment 1-4, the results are shown in Table 3:
The physical mechanical property parameter testing result of 3 waterborne polyurethane resin of table
| Test performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 100% modulus (MPa) | 1.52 | 1.6 | 1.66 | 1.8 |
| Breaking strength (MPa) | 14 | 15.5 | 15 | 18 |
| Elongation at break (%) | 554 | 605 | 590 | 580 |
As shown in Table 3,100% modulus of waterborne polyurethane resin of the invention is lower, and breaking strength is higher, this illustrates this
The sofa artificial leather bottom material of invention, which not only has preferable intensity also, has preferable flexibility, guarantees prepared sofa artificial leather feel
Has good wear-resisting property while flexible.
The test of application performance parameter is carried out to bottom material prepared by embodiment 1-4, the results are shown in Table 4:
4 bottom material application performance parameter testing result of table
As can be seen from Table 4: the bottom material of Examples 1 to 4 is in fitting application, and peeling force is larger, the sofa after fitting
Peeling force loss is less than 20% after removing from office resistance to 60 DEG C of washings 5min, and peeling force loss is less than after resistance to 10%NaOH aqueous solution soaking 18h
20%, 70 DEG C of 90% constant temperature and humidities of humidity place peeling force loss in 3 weeks less than 30%, and up to 80,000 times or more, this says wear-resisting property
The bright intensity with higher of the sofa artificial leather as obtained by waterborne polyurethane resin of the invention, good flexibility and higher resistance to
Grind performance.
It can be seen that the primary raw material using waterborne polyurethane resin of the invention as sofa artificial leather bottom material, one side energy
Enough flexibilities for improving obtained sofa artificial leather not only have preferable feel, also have good wear-resisting property, and can enhance
Use intensity；On the other hand, waterborne polyurethane resin is environment-protecting and non-poisonous, can satisfy environmental requirement, while in resin preparation process
Using a step feeding method, manpower and material resources cost can be substantially reduced.
So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of waterborne polyurethane resin, which is characterized in that the waterborne polyurethane resin includes following raw material components and weight
Part:
2. waterborne polyurethane resin according to claim 1, it is characterised in that: the macromolecular polyol is selected from poly- carbonic acid
Esterdiol, castor oil, polyisoprene glycol, polycaprolactone glycol, poly- ethanedioic acid isoprene esterdiol, polytetrahydrofuran ether
One of or it is a variety of.
3. waterborne polyurethane resin according to claim 1, it is characterised in that: the polyisocyanates be selected from TDI, MDI,
One of IPDI, HDI, NDI, HMDI or a variety of.
4. waterborne polyurethane resin according to claim 1, it is characterised in that: the hydrophilic chain extender is DMPA；It is described
Catalyst is selected from one or both of organo-bismuth, organic zinc.
5. waterborne polyurethane resin according to claim 1, it is characterised in that: the organosilicon modifier is amino containing silane
Coupling agent.
6. waterborne polyurethane resin according to claim 1, it is characterised in that: the neutralizer is triethylamine；The cream
Change water is deionized water；Chain extension reagent is selected from ethylenediamine, isobutyl diamines, hexamethylene diamine, p dimethylamine, O-phthalic after described
One of amine, isophorone diamine, hexamethylene dimethylamine are a variety of.
7. a kind of method for preparing the waterborne polyurethane resin as described in any in claim 1 to 6, which is characterized in that including
Following steps:
1) by 150~200 parts of macromolecular polyol, 30~45 parts of polyisocyanates, 3~5 parts of hydrophilic chain extenders, 0.1~0.5
Part catalyst and diluent are stirred to react 6~8h at 60~80 DEG C, and mixing speed is 500~800r/min；
2) the temperature was then adjusted to 30~80 DEG C, 0.5~4 part of organosilicon modifier is added, continues to be stirred to react 0.5~2h, stir
It mixes speed and remains 500~800r/min；
3) 50~60 DEG C are adjusted the temperature to, diluent is added and is mixed；0~25 DEG C is adjusted the temperature to, 2~5 parts of neutralizer is added,
Raising mixing speed is 1000~1200r/min, continues to add 300~500 parts of creams under high velocity agitation after neutralizing 1~5min of time
Change water, is reacted so that adding 1~5 part of rear chain extension reagent after being dispersed into emulsion state, 0.1~1h of reaction time；
4) removing diluent obtains waterborne polyurethane resin.
8. the method according to claim 7 for preparing waterborne polyurethane resin, it is characterised in that: be added in the step 1)
Diluent be 5~10 parts, the diluent being added in the step 3) is 100~150 parts, and diluent is acetone or butanone.
9. the method according to claim 7 for preparing waterborne polyurethane resin, which is characterized in that pass through in the step 4)
The mode of vacuum distillation removes diluent, concrete operation step are as follows: at 30~60 DEG C, vacuumizes the item of -0.07~-0.09MPa
Under part, 2~5h of stirring or rotation, wherein mixing speed is 300~500r/min, and the content for testing acetone or butanone is lower than
0.02%, and while testing solid content up to 35%~40%, stops reaction.
10. waterborne polyurethane resin according to claims 1 to 6 or according to prepared by claim 7~9 it is aqueous poly-
Urethane resin is applied to the method for sofa artificial leather, the preparation of preparation and sofa artificial leather sample including sofa artificial leather bottom material, and feature exists
In:
Step 1: take 80~100 parts the waterborne polyurethane resin according to prepared by claim 8~10,0.1~0.5 part
Organic silicon defoaming agent, 0.2~1 part of wetting agent are stirred mixing, then add under the mixing speed of 600~1200r/min
Add 0.5~4 part of thickener, so that viscosity increases to scheduled 8000~14000mpa.s of viscosity and obtains sofa artificial leather bottom material；
Step 2: the slurry of fabric is scratched in release paper, then is baked to be cured to obtain precoat；It is scratched on precoat
Scrape the bottom material of step 1 preparation；
Step 3: base fabric or sofa artificial leather bass roll-in are fitted on the face for being coated with bottom material of precoat, then are baked to solid
Change and obtains sofa artificial leather.
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Application publication date: 20181207 |