CN116377733A - Polyurethane synthetic leather and preparation method and application thereof - Google Patents
Polyurethane synthetic leather and preparation method and application thereof Download PDFInfo
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- CN116377733A CN116377733A CN202211605164.8A CN202211605164A CN116377733A CN 116377733 A CN116377733 A CN 116377733A CN 202211605164 A CN202211605164 A CN 202211605164A CN 116377733 A CN116377733 A CN 116377733A
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 128
- 239000004814 polyurethane Substances 0.000 title claims abstract description 128
- 239000002649 leather substitute Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002344 surface layer Substances 0.000 claims abstract description 40
- 239000004744 fabric Substances 0.000 claims abstract description 39
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000012790 adhesive layer Substances 0.000 claims abstract description 26
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims description 51
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- 239000008367 deionised water Substances 0.000 claims description 21
- 229910021641 deionized water Inorganic materials 0.000 claims description 21
- 239000012948 isocyanate Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 17
- -1 isocyanate compound Chemical class 0.000 claims description 16
- 239000004925 Acrylic resin Substances 0.000 claims description 15
- 229920000178 Acrylic resin Polymers 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
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- 239000002131 composite material Substances 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 10
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Images
Classifications
-
- 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
- D06N3/145—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 two or more layers of polyurethanes
-
- 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
-
- 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
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/105—Resistant to abrasion, scratch
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses polyurethane synthetic leather, a preparation method and application thereof, wherein the polyurethane synthetic leather takes low-viscosity aqueous acrylic acid type bio-based polyurethane as a surface layer and takes a bio-based polyurethane coating as an intermediate layer; the high-solid-content water-based acrylic polyurethane resin is used as an adhesive layer, and after the adhesive layer is attached to a 3mm mesh cloth base cloth, the prepared synthetic leather has the advantages of light weight, good rebound resilience, no peculiar smell and low VOC emission. The 3mm mesh fabric base fabric has the functions of the leather base fabric and the sponge, omits a composite sponge process in the prior art, and solves the problems of peculiar smell, VOC emission, high cost and the like caused by the composite process of the composite sponge process automotive interior material in the prior art.
Description
Technical Field
The invention belongs to the field of polyurethane synthetic leather, and particularly relates to polyurethane synthetic leather and a preparation method and application thereof.
Background
Polyurethane synthetic leather (Polyurethane Synthetic Leather) belongs to the polyurethane elastomer category, has the appearance of soft and natural luster, soft hand feeling and strong leather feel, has excellent mechanical properties of adhesion with a base material, wear resistance, flexing resistance, aging resistance and the like, has the advantages of good cold resistance, ventilation, washability, convenient processing, low price and the like, and is the most ideal material for replacing natural leather products in the world at present. The synthetic leather is mainly applied to the fields of shoes, bags, balls, furniture, automobiles and the like, and along with the improvement of the living standard of people, people have higher requirements on environmental protection and light weight of the synthetic leather.
In the aspect of automotive interior materials, no matter be the polyurethane synthetic leather for the cladding of door plant or car seat, generally through compound bonding 1mm-10mm sponge at polyurethane synthetic leather's substrate back to increase interior material's thickness, compliance and elasticity, compound mode mainly is glue bonding and flame burning sponge bonding two kinds, and both glue bonding or flame burning sponge bonding all have the problem that peculiar smell and VOC distribute, on the other hand, compound process also causes the cost in the aspect of manpower and the equipment operation maintenance.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a polyurethane synthetic leather, a method for preparing the same and an application thereof, wherein the polyurethane synthetic leather uses a low-viscosity aqueous acrylic type bio-based polyurethane as a surface layer and uses a bio-based polyurethane coating as an intermediate layer; the high-solid-content water-based acrylic polyurethane resin is used as an adhesive layer, and after the mesh cloth substrate is attached, the prepared synthetic leather has the advantages of light weight, good rebound resilience, no peculiar smell and low VOC emission, thereby solving the problems of peculiar smell, VOC emission, high cost and the like caused by the composite sponge process automotive interior material composite process in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the first object of the invention is to provide polyurethane synthetic leather, which comprises a water-based acrylic acid type bio-based polyurethane surface layer, a bio-based polyurethane intermediate layer, a water-based acrylic acid type bio-based polyurethane bonding layer and a mesh fabric substrate layer from outside to inside in sequence; the specification of the mesh cloth substrate layer is preferably 3mm; wherein:
the aqueous acrylic acid type bio-based polyurethane surface layer is prepared from the following aqueous acrylic acid type bio-based polyurethane surface layer slurry consisting of the following components in parts by weight: 100 parts of acrylic resin, 50-70 parts of isocyanate compound, 1-2 parts of ultraviolet absorber, 1-2 parts of flatting agent, 50-200 parts of deionized water and 10-20 parts of water-based color paste. The aqueous acrylic acid type bio-based polyurethane surface layer slurry is low-viscosity slurry. Polyurethane modification is carried out on the water-based acrylic ester through isocyanate, and the coating has both the rigidity of polyacrylate and the flexibility of polyurethane resin; the physical and mechanical properties are shown to be stronger in bending resistance and wear resistance.
The bio-based polyurethane intermediate layer is prepared from the following bio-based polyurethane intermediate layer slurry consisting of the following components in parts by weight: 100 parts of bio-based polyurethane resin, 30-50 parts of deionized water, 1-2 parts of ultraviolet absorber and 15-20 parts of water-based color paste. Compared with the traditional polyurethane resin coating, the bio-based polyurethane resin has lower biological cytotoxicity and better biocompatibility. Wherein: the bio-based polyurethane resin is at least one of bio-based aromatic polyether polyurethane, bio-based aromatic polyester polyurethane and bio-based aromatic polycarbonate polyurethane.
The aqueous acrylic acid type bio-based polyurethane adhesive layer is prepared from the following aqueous acrylic acid type bio-based polyurethane adhesive layer slurry consisting of the following components in parts by weight: 100 parts of acrylic resin, 30-50 parts of isocyanate compound, 1-2 parts of leveling agent, 20-50 parts of deionized water and 10-20 parts of water-based color paste. The aqueous acrylic acid type bio-based polyurethane bonding layer slurry is high-solid-content slurry, the solid content is 80% -95%, the bio-based content is 45% +/-5%, the aqueous acrylic acid type bio-based polyurethane bonding layer, the aqueous acrylic acid type bio-based polyurethane surface layer and the coating formed by the intermediate layer improve the bio-based carbon content of the product, and the bio-based carbon content of the product reaches about 35%.
Further, the leveling agent is a polyorganosiloxane compound.
A second object of the present invention is to provide a method for producing polyurethane synthetic leather as in the first object, comprising the steps of:
s1, coating aqueous acrylic acid type bio-based polyurethane surface layer slurry on the surface of release paper, heating and drying at 115-135 ℃ to obtain an aqueous acrylic acid type bio-based polyurethane surface layer on the surface of the release paper; the gap between cutter heads used for coating the aqueous acrylic acid type bio-based polyurethane surface layer slurry is 10-20 filaments;
s2, coating a bio-based polyurethane intermediate layer slurry on the surface of the water-based acrylic acid type bio-based polyurethane surface layer, and heating and drying at 105-125 ℃ to prepare a bio-based polyurethane intermediate layer; the gap between cutter heads used for coating the bio-based polyurethane intermediate layer slurry is 10-20 filaments;
s3, coating aqueous acrylic acid type bio-based polyurethane bonding layer slurry on the surface of the bio-based polyurethane intermediate layer, and heating the slurry at 105-130 ℃ to form an aqueous acrylic acid type bio-based polyurethane bonding layer through crosslinking reaction of polyalcohol in aqueous acrylic acid and isocyanate in isocyanate;
s4, attaching a 3mm mesh fabric base cloth to the aqueous acrylic acid type bio-based polyurethane adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather
A third object of the present invention is to provide the use of polyurethane synthetic leather as in the first object as an automotive interior material.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, low-viscosity water-based acrylic acid type bio-based polyurethane is used as a surface layer, and a bio-based polyurethane coating is used as an intermediate layer; after the high-solid-content water-based acrylic polyurethane resin is used as an adhesive layer and is adhered to the mesh fabric base cloth, compared with the conventional synthetic leather base cloth, the mesh fabric is made of terylene and cotton blended cloth, and the surface of the mesh fabric contains a large number of hydroxyl groups, so that the mesh fabric has good reactivity, can react with active groups in the adhesive layer, and enhances the adhesive property of the mesh fabric, thereby improving the peeling composite strength. Glue bonding or fire of automotive interior material in the prior artFlame burning sponge bonding all has the problem that peculiar smell and VOC give off, and on the other hand, compound process also causes the cost in the aspect of manpower and equipment operation maintenance. The 3mm mesh fabric base fabric has the functions of the leather base fabric and the sponge, omits a composite sponge process in the prior art, and solves the problems of peculiar smell, VOC emission, high cost and the like caused by the composite process of the composite sponge process automotive interior material in the prior art. The odor grade of the material is less than or equal to 3 grades, and the TVOC emission quantity is less than or equal to 0.5mg/m 3 Apparent density is less than or equal to 200g/cm 3 。
Drawings
FIG. 1 is a longitudinal sectional view of polyurethane synthetic leather provided by the invention;
reference numerals: 1-water-based acrylic acid type bio-based polyurethane surface layer, 2-bio-based polyurethane intermediate layer, 3-water-based acrylic acid type bio-based polyurethane adhesive layer and 4-mesh fabric substrate layer.
Detailed Description
In order that the invention may be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated below. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The raw materials, their models and manufacturers used in the following examples are as follows;
the manufacturer of the acrylic resin is Shanghai chemical industry Co., ltd, and the brand is BR-85.
The manufacturer of the isocyanate compound is Wanhua chemical group Co., ltd, and the brand is 9068;
the manufacturer of the ultraviolet absorbent is double bond chemical industry Co., ltd, and the brand is CS1300;
the manufacturer of the leveling agent is Pick chemistry with the brand of BYK-9565;
the manufacturer of the water-based color paste is Suzhou Shiming scientific and technical Co., ltd, and the marks are S19-LR08, S19-LR03, S19-LR04, S19-LR10, S19-LR11 or S19-LR51;
the manufacturer of the bio-based polyurethane resin is Henschel chemical industry trade (Shanghai) limited, and the trade name is A85E6046DP.
The manufacturer of the mesh fabric base fabric is Yaohhong textile limited company in Suzhou, and the specification is 3mm;
the above reagents are merely illustrative of the sources and ingredients of the reagents used in the experiments of the invention and are well disclosed and do not represent the inability to practice the invention using other reagents of the same type or provided by other suppliers.
Referring to fig. 1, the polyurethane synthetic leather provided by the invention sequentially comprises a water-based acrylic acid type bio-based polyurethane surface layer 1, a bio-based polyurethane intermediate layer 2, a water-based acrylic acid type bio-based polyurethane bonding layer 3 and a 3mm mesh fabric substrate layer 4 from outside to inside.
Example 1
The polyurethane synthetic leather and the preparation method thereof in the embodiment comprise the following steps:
s1, preparing a polyurethane composite layer: coating the surface layer polyurethane slurry on the surface of release paper by adopting a cutter head gap of 10 wires, and heating and drying at 115 ℃ to prepare a surface layer; then the middle layer polyurethane slurry is coated on the surface layer by adopting a cutter head gap of 10 threads, and is heated and dried at 105 ℃ to obtain the middle layer, wherein the surface layer polyurethane slurry consists of 100 parts of acrylic resin, 50 parts of isocyanate compound, 1 part of ultraviolet absorbent, 1 part of flatting agent, 5 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass; the middle layer polyurethane slurry consists of 100 parts of bio-based polyurethane resin, 30 parts of deionized water, 1 part of ultraviolet absorber and 15 parts of water-based color paste S19-LR08 according to parts by mass;
s2, coating high-solid-content acrylic polyurethane slurry on the surface of the middle layer, and drying at 105 ℃ to obtain an adhesive layer, wherein the high-solid-content acrylic polyurethane resin slurry consists of 100 parts of acrylic resin, 30 parts of isocyanate compound, 1 part of flatting agent, 20 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass;
and S3, attaching a 3mm mesh cloth base cloth on the adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather for the composite-free automobile interior trim.
Example 2
The polyurethane synthetic leather and the preparation method thereof in the embodiment comprise the following steps:
s1, preparing a polyurethane composite layer: coating the surface layer polyurethane slurry on the surface of release paper by adopting a 15-wire cutter head gap, and heating and drying at 125 ℃ to prepare a surface layer; then the middle layer polyurethane slurry is coated on the surface layer by adopting a cutter head gap of 15 threads, and is heated and dried at 115 ℃ to obtain a middle layer, wherein the middle layer polyurethane slurry consists of 100 parts of acrylic resin, 60 parts of isocyanate compound, 1.5 parts of ultraviolet absorbent, 1.5 parts of flatting agent, 125 parts of deionized water and 15 parts of water-based color paste S19-LR11 according to parts by mass, and the middle layer polyurethane slurry consists of 100 parts of bio-based polyurethane resin, 40 parts of deionized water, 1.5 parts of ultraviolet absorbent and 17.5 parts of water-based color paste S19-LR11 according to parts by mass;
s2, coating high-solid-content acrylic polyurethane slurry on the surface of the middle layer, and drying at 120 ℃ to obtain an adhesive layer, wherein the high-solid-content acrylic polyurethane resin slurry consists of 100 parts of acrylic resin, 40 parts of isocyanate compound, 1.5 parts of flatting agent, 35 parts of deionized water and 15 parts of water-based color paste S19-LR11 according to parts by mass;
and S3, attaching a 3mm mesh cloth base cloth on the adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather for the composite-free automobile interior trim.
Example 3
The polyurethane synthetic leather and the preparation method thereof in the embodiment comprise the following steps:
s1, preparing a polyurethane composite layer: coating the surface layer polyurethane slurry on the surface of release paper by adopting a cutter head gap of 10 wires, and heating and drying at 115 ℃ to prepare a surface layer; and then the middle layer polyurethane slurry is coated on the surface layer by adopting a cutter head gap of 10 threads, and is heated and dried at 105 ℃ to obtain the middle layer, wherein the surface layer polyurethane slurry consists of 100 parts of acrylic resin, 70 parts of isocyanate compound, 2 parts of ultraviolet absorbent, 2 parts of flatting agent, 200 parts of deionized water and 20 parts of water-based color paste S19-LR11 according to parts by mass, and the middle layer polyurethane slurry consists of 100 parts of bio-based polyurethane resin, 50 parts of deionized water, 2 parts of ultraviolet absorbent and 20 parts of water-based color paste S19-LR11 according to parts by mass. The method comprises the steps of carrying out a first treatment on the surface of the
S2, coating high-solid-content acrylic polyurethane slurry on the surface of the middle layer, and drying at 130 ℃ to obtain an adhesive layer, wherein the high-solid-content acrylic polyurethane resin slurry consists of 100 parts of acrylic resin, 50 parts of isocyanate compound, 2 parts of flatting agent, 50 parts of deionized water and 20 parts of water-based color paste S19-LR11 according to parts by mass;
and S3, attaching a 3mm mesh cloth base cloth on the adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather for the composite-free automobile interior trim.
Comparative example 1
S1, preparing a polyurethane composite layer: coating the surface layer polyurethane slurry on the surface of release paper by adopting a cutter head gap of 10 wires, and heating and drying at 115 ℃ to prepare a surface layer; then, the middle layer polyurethane slurry is coated on the surface layer by adopting a cutter head gap of 10 threads, and is heated and dried at 105 ℃ to obtain a middle layer, wherein the surface layer polyurethane slurry consists of 100 parts of acrylic resin, 50 parts of isocyanate compound, 1 part of ultraviolet absorbent, 1 part of flatting agent, 5 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass, and the middle layer polyurethane slurry consists of 100 parts of bio-based polyurethane resin, 30 parts of deionized water, 1 part of ultraviolet absorbent and 15 parts of water-based color paste S19-LR08 according to parts by mass;
s2, coating high-solid-content acrylic polyurethane slurry on the surface of the middle layer, and drying at 140 ℃ to obtain an adhesive layer, wherein the high-solid-content acrylic polyurethane resin slurry consists of 100 parts of acrylic resin, 30 parts of isocyanate compound, 1 part of flatting agent, 20 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass;
and S3, attaching a 3mm mesh cloth base cloth on the adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather for the composite-free automobile interior trim.
Comparative example 2
S1, preparing a polyurethane composite layer: coating the surface layer polyurethane slurry on the surface of release paper by adopting a cutter head gap of 10 wires, and heating and drying at 115 ℃ to prepare a surface layer; then, the middle layer polyurethane slurry is coated on the surface layer by adopting a cutter head gap of 10 threads, and is heated and dried at 105 ℃ to obtain a middle layer, wherein the surface layer polyurethane slurry consists of 100 parts of acrylic resin, 50 parts of isocyanate compound, 1 part of ultraviolet absorbent, 1 part of flatting agent, 5 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass, and the middle layer polyurethane slurry consists of 100 parts of bio-based polyurethane resin, 30 parts of deionized water, 1 part of ultraviolet absorbent and 15 parts of water-based color paste S19-LR08 according to parts by mass;
s2, coating high-solid-content acrylic polyurethane slurry on the surface of the middle layer, and drying at 100 ℃ to obtain an adhesive layer, wherein the high-solid-content acrylic polyurethane resin slurry consists of 100 parts of acrylic resin, 30 parts of isocyanate compound, 1 part of flatting agent, 20 parts of deionized water and 10 parts of water-based color paste S19-LR08 according to parts by mass;
and S3, attaching a 3mm mesh cloth base cloth on the adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather for the composite-free automobile interior trim.
Test example:
the polyurethane synthetic leather obtained in example 1, example 3, comparative example 1, comparative example 2 and the commercially available glue composite automotive interior leather were respectively subjected to test comparison of apparent density, odor and TVOC content-related properties.
The results of performance tests on the products of examples 1, 3, comparative examples 1, 2 and the commercial glue composite automotive interior leather are shown in table 1 below:
TABLE 1
Note that: the apparent density was measured as specified in QB/T4194-2011 at 6.3.2, the peel composite strength was measured as specified in QB/T4194-2011 at 6.8, the odor was measured as specified in QB/T4043-2010 at 6.30, the TVOC content was measured as specified in QB/T5249-2018, the folding endurance was measured as specified in QB/T2714-2005, and the abrasion resistance was measured as specified in QB/T4194-2011 at 6.11.
From the detection result, the apparent density of the invention is smaller than that of the glue composite automotive interior leather in the prior art, and the odor grade and TVOC emission are far lower than those of the glue composite automotive interior leather in the prior art. In comparative example 1, the temperature of the adhesive layer was increased and the peel composite strength was improved, but too high a temperature caused decomposition and oxidation of groups such as side methyl groups in polyurethane into VOC molecules such as formaldehyde, which were manifested as deterioration in odor and increase in TVOC content; in comparative example 2, the temperature of the adhesive layer was lowered, the small molecules in the adhesive layer were not likely to participate in the polymerization crosslinking curing reaction, the peel composite strength of the product was improved, the residual organic small molecules were continuously released, the odor was deteriorated, and the TVOC content was increased. In combination, the drying temperature of the adhesive layer should be controlled to 105-130 ℃.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. A polyurethane synthetic leather, characterized in that: the outer part of the fabric is sequentially provided with a water-based acrylic acid type bio-based polyurethane surface layer, a bio-based polyurethane intermediate layer, a water-based acrylic acid type bio-based polyurethane bonding layer and a mesh fabric substrate layer from outside to inside; the aqueous acrylic acid type bio-based polyurethane adhesive layer is prepared from the following aqueous acrylic acid type bio-based polyurethane adhesive layer slurry consisting of the following components in parts by weight: 100 parts of acrylic resin, 30-50 parts of isocyanate compound, 1-2 parts of leveling agent, 20-50 parts of deionized water and 10-20 parts of water-based color paste.
2. The polyurethane synthetic leather of claim 1, wherein: the aqueous acrylic acid type bio-based polyurethane surface layer is prepared from the following aqueous acrylic acid type bio-based polyurethane surface layer slurry consisting of the following components in parts by weight: 100 parts of acrylic resin, 50-70 parts of isocyanate compound, 1-2 parts of ultraviolet absorber, 1-2 parts of flatting agent, 50-200 parts of deionized water and 10-20 parts of water-based color paste.
3. The polyurethane synthetic leather according to claim 1 or 2, characterized in that: the leveling agent is a polyorganosiloxane compound.
4. The polyurethane synthetic leather of claim 1, wherein: the bio-based polyurethane intermediate layer is prepared from the following bio-based polyurethane intermediate layer slurry consisting of the following components in parts by weight: 100 parts of bio-based polyurethane resin, 30-50 parts of deionized water, 1-2 parts of ultraviolet absorber and 15-20 parts of water-based color paste.
5. The polyurethane synthetic leather of claim 4, wherein: the bio-based polyurethane resin is at least one of bio-based aromatic polyether polyurethane, bio-based aromatic polyester polyurethane and bio-based aromatic polycarbonate polyurethane.
6. The method for producing polyurethane synthetic leather according to any one of claims 1 to 5, wherein: the method comprises the following steps:
s1, coating aqueous acrylic acid type bio-based polyurethane surface layer slurry on the surface of release paper, and drying to obtain an aqueous acrylic acid type bio-based polyurethane surface layer on the surface of the release paper;
s2, coating a bio-based polyurethane intermediate layer slurry on the surface of the water-based acrylic acid type bio-based polyurethane surface layer, and drying to obtain a bio-based polyurethane intermediate layer;
s3, coating aqueous acrylic acid type bio-based polyurethane bonding layer slurry on the surface of the bio-based polyurethane intermediate layer to form an aqueous acrylic acid type bio-based polyurethane bonding layer;
and S4, attaching the mesh fabric base cloth to the aqueous acrylic acid type bio-based polyurethane adhesive layer, and then rolling and stripping to obtain the polyurethane synthetic leather.
7. The method for producing polyurethane synthetic leather according to claim 6, wherein: in the step S1, the gap between cutter heads used for coating the aqueous acrylic acid type bio-based polyurethane surface layer slurry is 10-20 filaments; the temperature of the drying is 115-135 ℃.
8. The method for producing polyurethane synthetic leather according to claim 6, wherein: in the step S2, the gap between the cutter heads used for coating the bio-based polyurethane intermediate layer slurry is 10-20 filaments; the temperature of the drying is 105-125 ℃.
9. Use of the polyurethane synthetic leather according to any one of claims 1 to 5 as an automotive interior material.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440151A (en) * | 2008-12-19 | 2009-05-27 | 合肥安利化工有限公司 | Wet-type polyurethane grafting polyacrylic acid copolymerized resin for embossed leather and preparation thereof |
| CN103835144A (en) * | 2014-03-04 | 2014-06-04 | 合肥市科天化工有限公司 | Environmental-friendly and water-pressure-resistant tent leather and preparation method thereof |
| CN107100011A (en) * | 2017-06-30 | 2017-08-29 | 朱燕萍 | A kind of Synthetic Leather and preparation method thereof |
| CN107973892A (en) * | 2017-12-04 | 2018-05-01 | 昆山阿基里斯人造皮有限公司 | A kind of automobile polyester tack coat used for artificial leather and its preparation method and application |
| CN111016310A (en) * | 2019-11-04 | 2020-04-17 | 安徽安利材料科技股份有限公司 | High-durability durable solvent-free embossed grain-absorbing polyurethane synthetic leather and preparation method thereof |
-
2022
- 2022-12-14 CN CN202211605164.8A patent/CN116377733A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440151A (en) * | 2008-12-19 | 2009-05-27 | 合肥安利化工有限公司 | Wet-type polyurethane grafting polyacrylic acid copolymerized resin for embossed leather and preparation thereof |
| CN103835144A (en) * | 2014-03-04 | 2014-06-04 | 合肥市科天化工有限公司 | Environmental-friendly and water-pressure-resistant tent leather and preparation method thereof |
| CN107100011A (en) * | 2017-06-30 | 2017-08-29 | 朱燕萍 | A kind of Synthetic Leather and preparation method thereof |
| CN107973892A (en) * | 2017-12-04 | 2018-05-01 | 昆山阿基里斯人造皮有限公司 | A kind of automobile polyester tack coat used for artificial leather and its preparation method and application |
| CN111016310A (en) * | 2019-11-04 | 2020-04-17 | 安徽安利材料科技股份有限公司 | High-durability durable solvent-free embossed grain-absorbing polyurethane synthetic leather and preparation method thereof |
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