CN107383326A - A kind of novel synthetic leather aqueous polyurethane and preparation method - Google Patents
A kind of novel synthetic leather aqueous polyurethane and preparation method Download PDFInfo
- Publication number
- CN107383326A CN107383326A CN201710682656.XA CN201710682656A CN107383326A CN 107383326 A CN107383326 A CN 107383326A CN 201710682656 A CN201710682656 A CN 201710682656A CN 107383326 A CN107383326 A CN 107383326A
- Authority
- CN
- China
- Prior art keywords
- parts
- aqueous polyurethane
- synthetic leather
- novel synthetic
- macleaya cordata
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
-
- 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
- C08G18/348—Hydroxycarboxylic acids
-
- 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
-
- 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
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 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
- C08G18/28—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
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0058—Biocides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- 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
- D06N3/148—(cyclo)aliphatic polyisocyanates
Abstract
The invention discloses a kind of novel synthetic leather aqueous polyurethane and preparation method, belong to technical field of synthetic leather.The aqueous polyurethane is made up of polyether Glycols, IPDI and auxiliary agent, and waterborne polyurethane resin of the invention is not only environmentally friendly, and manufactured leather has good water vapor permeability, gas permeability.But also with the ability of certain sterilization expelling parasite, the taste of leather is further improved, alleviates peculiar smell sense.
Description
Technical field
The present invention relates to chemical material field, more particularly to a kind of waterborne polyurethane for synthetic leather and preparation method.
Background technology
Aqueous polyurethane refers to that polyurethane is dissolved in a kind of polyaminoester emulsion in water or being dispersed in water and being formed.20
Since the 60's of century, solvent borne polyurethane is widely used in a variety of applications, however organic solvent using when cause air pollution,
With more or less toxicity, in recent years, people's environmental consciousness constantly strengthens, and this facilitate the exploitation of water-base polyurethane material.
Aqueous polyurethane using water as basic medium, have the advantages that it is free from environmental pollution, save, operate it is easy to process, by people's
Pay attention to.
Aqueous polyurethane has the advantages that environment-friendly, nontoxic, nonflammable and is widely used in environment friend using water as solvent
In good type coating and adhesive, and show a series of excellent properties.Although aqueous polyurethane with many excellent performances,
But still there are many weak points.Compared with corium, there is wearability, poor air permeability, the problems such as peculiar smell is dense.
The content of the invention
It is an object of the invention to provide a kind of novel synthetic leather aqueous polyurethane and preparation method.
The purpose of the present invention is achieved through the following technical solutions, and the novel synthetic leather aqueous polyurethane is by polyethers two
First alcohol 50-55 parts, IPDI 30-35 parts, dihydromethyl propionic acid 2-4 parts, the cinnamic acid 0.2- of dibutyl tin two
0.4 part, triethylamine 2-3 parts, ethylenediamine 2-4 parts, macleaya cordata powder 1-2 parts is made.
Preferably, the novel synthetic leather aqueous polyurethane is by 53 parts of polyether Glycols, IPDI 33
Part, 3 parts of dihydromethyl propionic acid, 0.3 part of two cinnamic acid of dibutyl tin, 2.5 parts of triethylamine, 3 parts of ethylenediamine, 1.5 parts of macleaya cordata powder
It is made.
Preparation method：In the four-hole boiling flask equipped with thermometer, condensing reflux pipe and agitator, first polyester diol is existed
N2In 100-110 DEG C of vacuum dehydration 2h under protection, be then cooled to 70-80 DEG C, add metering IPDI,
Dihydromethyl propionic acid, macleaya cordata powder and the cinnamic acid of dibutyl tin two, after reacting 5-7h, judge reaction eventually with di-n-butylamine titration
Point, is cooled to 60 DEG C, is added dropwise in triethylamine and 40min-60min, obtains performed polymer, then adds into reaction system a certain amount of
Water, low sheraing disperse 10-20min, then high shear dispersion, and add ethylenediamine chain extension 35min, and the water-based polyoxy of the present invention is made
Ester dispersion liquid.
The macleaya cordata powder is the distilled water immersion 50min for adding its 10 times of parts by weight by the macleaya cordata of certain part by weight, is added
Heat to boiling slow fire keeps 30min, and with six layers of filtered through gauze, the dregs of a decoction add 6 times of parts by weight distilled water again, is heated to boiling slow fire and protects
40min is held, six layers of filtered through gauze, merges 2 filtrates and is concentrated and dried, the powder for being processed into diameter 80-90nm is made.
Experimental data
The measure of light transmittance：Emulsion light transmittance is determined using visible spectrophotometer.
Sample is placed in thermostatic chamber by rotary viscosity measure（26℃±3℃）, turn according to range of viscosities selection is suitable
Son.The viscosity of sample is measured on rotary-type viscosimeter.The reading on instruction disk is read after pointer is stable.Result of calculation：Rotation
Turn viscosity（mPa·s）Reading * rotor coefficients on=instruction disk.
Dewatering ability：Emulsion dewatering ability, test condition are tested using centrifugal：3000rpm, 30min,
Emulsion, which does not produce layering or precipitates to sentence, to be passed through.
Bin stability：Stored using artificial acceleration condition, to test the bin stability of emulsion, test condition：53±
2 DEG C, 30d, phenomena such as emulsion does not produce cohesion, precipitation, is sentenced and passes through.
Aqueous polyurethane emulsion (WPU) determination of solid content of the present invention：The emulsion of certain mass is accurately weighed in culture dish,
It is dried at room temperature for being molded, then untill being dried in 80 DEG C of baking oven no significant change of weighing twice.Solid content is as the following formula
Calculate：Solid content=(M2-M1)/M0× 100%, M in formula2For the quality after culture dish and WPU drying, M1The quality of culture dish,
M0For the quality of resin sample, each mass unit is g.
Aqueous polyurethane resin emulsion performance evaluation of the present invention, emulsion appearance, solid content, stability etc. are that emulsion makes
The master data that used time should refer to, and the performance directly perceived of the other physical properties of waterborne polyurethane resin.We are routinely
Solvent-borne type aqueous polyurethane is set to control group made from method, and observation group is set to the aqueous polyurethane of the present invention.Measure reality
Data are as follows.
| Numbering | Control group | Observation group |
| Light transmittance（%） | 42.3 | 41.7 |
| Solid content（%） | 29.88 | 30.11 |
| Rotary viscosity（mpa·s） | 311 | 320 |
| Dewatering ability | Pass through | Pass through |
| Slightly deposit stability | Pass through | Pass through |
To be tested more than, water-base polyurethane material of the invention achieves preferable experimental result, meanwhile, reduce
Pollution to environment.
The performance test of polyurethane laminate：We are set to pair using solvent-borne type aqueous polyurethane glued membrane made from conventional method
According to group, observation group is set to glued membrane made from the aqueous polyurethane of the present invention.The present invention is tested using Zwick/Roell Z020
The tensile property of aqueous polyurethane film.Testing standard is GB 16421-1996, and test temperature is 26 DEG C, test speed 50mm/
Min, test result such as following table.
| Title | Tensile strength/MP | Elongation at break/% |
| Control group | 29.9 | 2254 |
| Observation group | 29.5 | 2236 |
By experimental result, after observation group adds macleaya cordata powder, tensile strength and elongation at break have declined, but change
Unobvious.
Using aqueous polyurethane of the present invention, traditionally manufactured synthetic leather closes with traditionally manufactured solvent-borne type
Every Testing index such as following table of finished leather.
The measure of peel strength：The synthetic leather processed is cut off along broadwise medium line, superficial layer is to superficial layer with special
Adhesive is pasted, rolled, drying.Wide 30mm, long 100mm bar samples are radially cut into again, are then drawn with constant speed elongation type
Force tester is stretched, and angle is the peel strength of 180 ° of stripping, measure superficial layer and matrix interlayer.
Wearability determines：Specimen size external diameter 100mm, internal diameter 8mm, the sticky paper of the identical size of back side note.
Taber emery wheels H-22.Counterweight weight：1000g（Deadweight 250g+750g counterweights）.Rotational speed：70 RPM.As a result
Judge：It is as unqualified to expose base.
Folding fastness determines：Normal temperature folding fastness machine, lower folder is fixed, and upper folder is with 35 ° of reciprocating motions of knuckle.Rotate
100 ± 5 times/min of speed.
Resistance to blocking determines：Materials 8 pieces, 4 groups of samples, to amounting to 4 groups, are clipped in two pieces by coating respectively with coat side
In 60mm × 60mm × 3mm glass intermediate plate, and on intermediate plate press 10N load weight, being put into temperature is（75±5）DEG C
In constant temperature oven with air-blast device, sample is taken out after constant temperature 3h, is placed in 30min at room temperature, the examination of pairing is then opened with hand
Sample.The judgement of experimental result is carried out by the following method.
5 grades：Can gently it peel off.
4 grades：Slightly firmly peel off.
3 grades：It could be peeled off with certain power, surface is not destroyed.
2 grades：Peel off under gravity, and imperfect stripping occur.
1 grade：It can not peel off.
The minimum of four groups of samples is taken as experimental result.
| Test event | Control group | Observation group |
| Peel strength | 26.9N | 31.4N |
| Wearability | >=600 turns | >=650 turns |
| Folding resistance | >=53000 times | >=53000 turns |
| Resistance to blocking | 4 grades | 4 grades |
By a conventional method to leather water vapor permeability, gas permeability, the experimental result such as following table for sterilizing insect-repellent.
| Style title | Water vapor permeability g/m2•24h | Gas permeability mL/cm2•h | Sterilize insect-repellent |
| Control group | 880 | 6540 | Nothing |
| Observation group | 1090 | 8210 | Preferably |
Tested more than, waterborne polyurethane resin of the invention is not only environmentally friendly, and manufactured leather has good
Water vapor permeability, gas permeability.The particularly appropriate addition of macleaya cordata powder, can form the gas for not influenceing mechanical property on the periphery of powder
Road, make it have good gas permeability；Because powder is finally inlayed in the leather, make leather that there is the energy of certain sterilization expelling parasite
Power, the taste of leather is further improved, alleviate peculiar smell sense.
By aqueous polyurethane of the present invention, traditionally manufactured synthetic leather synthesizes with traditionally manufactured solvent-borne type
Leather exposure in atmosphere, after a period of time, samples, using 9cm to 3 places S1, S2, S3 of two kinds of synthetic leather respectively
Plating medium, exposure 20min, cultivates 60h at 35 DEG C, calculates the clump count of two kinds of synthetic leather.Unit：Individual/plate.
| Title | S1 | S2 | S3 | Average value |
| Synthetic leather of the present invention | 7 | 6 | 5 | 6 |
| Solvent type synthetic leather | 31 | 27 | 35 | 31 |
From statistical result as can be seen that being closed using the sedimentation bacterium colony made of aqueous polyurethane of the present invention on synthetic leather and solvent-borne type
Sedimentation bacterium colony on finished leather has pole significant difference（P<0.01）, i.e., synthetic leather of the invention has clearly to the microorganism in environment
Elimination effect.
Embodiment
The novel synthetic leather aqueous polyurethane is by polyether Glycols 52g, IPDI 32g, dihydroxy first
Base propionic acid 3g, the cinnamic acid 0.3g of dibutyl tin two, triethylamine 2.3g, ethylenediamine 3g, macleaya cordata powder 1g are made.Equipped with temperature
In the four-hole boiling flask of meter, condensing reflux pipe and agitator, first by polyester diol in N2In 105 DEG C of vacuum dehydration 2h under protection,
Then 75 DEG C are cooled to, adds IPDI, dihydromethyl propionic acid, macleaya cordata powder and the dibutyl tin two of metering
Cinnamic acid, after reacting 6h, judge reaction end with di-n-butylamine titration, be cooled to 60 DEG C, in dropwise addition triethylamine and 50min,
Performed polymer is obtained, then a certain amount of water is added into reaction system, low sheraing disperses 15min, then high shear dispersion, and adds
Ethylenediamine chain extension 35min, aqueous polyurethane dispersing liquid of the present invention is made.The macleaya cordata powder is the macleaya cordata by certain part by weight
Add the distilled water immersion 50min of its 10 times of parts by weight, be heated to the slow fire holding 30min that seethes with excitement, with six layers of filtered through gauze, the dregs of a decoction are again
Add 6 times of parts by weight distilled water, be heated to the slow fire holding 40min that seethes with excitement, six layers of filtered through gauze, merge 2 filtrates and be concentrated and dried, add
Work is made into diameter 85nm powder.
Claims (4)
1. a kind of novel synthetic leather aqueous polyurethane, it is characterised in that the aqueous polyurethane is by polyether Glycols 50-55 parts, different
Isophorone diisocyanate 30-35 parts, dihydromethyl propionic acid 2-4 parts, the cinnamic acid 0.2-0.4 parts of dibutyl tin two, triethylamine 2-3
Part, ethylenediamine 2-4 parts, macleaya cordata powder 1-2 parts are made.
2. a kind of novel synthetic leather aqueous polyurethane as claimed in claim 1, it is characterised in that the aqueous polyurethane is by gathering
53 parts of ether dihydric alcohol, 33 parts of IPDI, 3 parts of dihydromethyl propionic acid, 0.3 part of two cinnamic acid of dibutyl tin, three
2.5 parts of ethamine, 3 parts of ethylenediamine, 1.5 parts of macleaya cordata powder are made.
A kind of 3. novel synthetic leather aqueous polyurethane as claimed in claim 1, it is characterised in that the macleaya cordata powder be by
The macleaya cordata of certain part by weight adds the distilled water immersion 50min of its 10 times of parts by weight, is heated to the slow fire holding 30min that seethes with excitement, uses
Six layers of filtered through gauze, the dregs of a decoction add 6 times of parts by weight distilled water again, are heated to the slow fire holding 40min that seethes with excitement, six layers of filtered through gauze, close
And 2 filtrates are concentrated and dried, the powder for being processed into diameter 80-90nm is made.
4. a kind of preparation method of novel synthetic leather aqueous polyurethane, it is characterised in that equipped with thermometer, condensing reflux pipe
In the four-hole boiling flask of agitator, first by polyester diol in N2In 100-110 DEG C of vacuum dehydration 2h under protection, then it is cooled to
70-80 DEG C, IPDI, dihydromethyl propionic acid, macleaya cordata powder and the cinnamic acid of dibutyl tin two of metering are added,
After reacting 5-7h, judge reaction end with di-n-butylamine titration, be cooled to 60 DEG C, in dropwise addition triethylamine and 40min-60min,
Performed polymer is obtained, then a certain amount of water is added into reaction system, low sheraing disperses 10-20min, then high shear dispersion, and
Ethylenediamine chain extension 35min is added, aqueous polyurethane dispersing liquid of the present invention is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682656.XA CN107383326A (en) | 2017-08-10 | 2017-08-10 | A kind of novel synthetic leather aqueous polyurethane and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710682656.XA CN107383326A (en) | 2017-08-10 | 2017-08-10 | A kind of novel synthetic leather aqueous polyurethane and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107383326A true CN107383326A (en) | 2017-11-24 |
Family
ID=60355311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710682656.XA Pending CN107383326A (en) | 2017-08-10 | 2017-08-10 | A kind of novel synthetic leather aqueous polyurethane and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107383326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564938A (en) * | 2021-07-26 | 2021-10-29 | 温州市巨特鞋业有限公司 | Breathable mildew-proof polyurethane leather and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005154580A (en) * | 2003-11-26 | 2005-06-16 | Mitsui Chemicals Inc | Self-emulsifying aqueous polyurethane resin and its application |
| CN1740206A (en) * | 2005-09-22 | 2006-03-01 | 上海市合成树脂研究所 | Prepn process of water thinned polyurethane emulsion |
| CN105442342A (en) * | 2015-11-23 | 2016-03-30 | 东华理工大学 | Plant antibacterial and odor-resistant type polyurethane artificial leather and preparation method thereof |
-
2017
- 2017-08-10 CN CN201710682656.XA patent/CN107383326A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005154580A (en) * | 2003-11-26 | 2005-06-16 | Mitsui Chemicals Inc | Self-emulsifying aqueous polyurethane resin and its application |
| CN1740206A (en) * | 2005-09-22 | 2006-03-01 | 上海市合成树脂研究所 | Prepn process of water thinned polyurethane emulsion |
| CN105442342A (en) * | 2015-11-23 | 2016-03-30 | 东华理工大学 | Plant antibacterial and odor-resistant type polyurethane artificial leather and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 刘葵等: "《药学综合技能与实训》", 30 April 2012, 人民军医出版社 * |
| 张佳军: "合成革用水性聚氨酯的无溶剂合成与性能", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 郭建生等: "《实用临床中药手册》", 31 March 2016, 湖南科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564938A (en) * | 2021-07-26 | 2021-10-29 | 温州市巨特鞋业有限公司 | Breathable mildew-proof polyurethane leather and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ma et al. | In situ formed active and intelligent bacterial cellulose/cotton fiber composite containing curcumin | |
| CN102808357A (en) | Super-hydrophobic paper and production method thereof | |
| CN104893485B (en) | A kind of highlight water-based oil polish of environment-friendly type and preparation method thereof | |
| CN114086421B (en) | Fluorine-free waterproof and oil-proof agent and preparation method and application thereof | |
| CN110294867B (en) | Novel nano-silicon aerogel packaging composite film and preparation method thereof | |
| CN107383326A (en) | A kind of novel synthetic leather aqueous polyurethane and preparation method | |
| Liu et al. | Microbial dyes: dyeing of poplar veneer with melanin secreted by Lasiodiplodia theobromae isolated from wood | |
| Hu et al. | Development of photochromic wood material by microcapsules | |
| Atef El-Sayed et al. | Application of prepared waterborne polyurethane extended with chitosan to impart antibacterial properties to acrylic fabrics | |
| Zhang et al. | Preparation and characterization of polyurethane based on dimer acid for environment-friendly controlled release fertilizers | |
| CN107383315A (en) | A kind of environment-friendly type waterborne polyurethane for synthetic leather and preparation method | |
| CN109777169A (en) | A kind of preparation method of the antibacterial toy coating of high heat resistance | |
| CN111876063A (en) | Water-based adhesive and application thereof | |
| CN108560148A (en) | A kind of preparation method of Kynoar composite cellulosic membrane | |
| Chen et al. | Effect of tannin on the bonding performance and mildew resistance of soybean meal-based adhesive | |
| CN110845696A (en) | Waterborne polyurethane resin and preparation method thereof | |
| CN106046216A (en) | High-temperature-resistant and high-humidity humidity-sensitive polymer, method for preparing same and capacitive sensor prepared on basis of high-temperature-resistant and high-humidity humidity-sensitive polymer | |
| CN109512700A (en) | A kind of copolymerization Colour nail polish and preparation method thereof | |
| CN105524290A (en) | Transparent flexible cellulosic material-based solid-solid phase-change membrane | |
| CN109575226B (en) | Preparation method of environment-friendly extinction type waterborne polyurethane resin | |
| Zou et al. | A thermochromic wood that can change colour at 24–40℃ and collect heat for heating flooring | |
| CN106883371A (en) | A kind of modified polyurethane resin and preparation method thereof | |
| Liao et al. | Effect of rosin based quaternary ammonium salt on mechanical, hydrophily, antibacterial of cornstarch/polydopamine film for food packaging | |
| CN104312419B (en) | A kind of ultraviolet light curing glass paint with antibacterial functions and preparation method thereof | |
| CN106947388A (en) | One breeding flock point group mark coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171124 |