CN113882165A - Anti-corrosion PU synthetic leather and preparation method thereof - Google Patents
Anti-corrosion PU synthetic leather and preparation method thereof Download PDFInfo
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- CN113882165A CN113882165A CN202111186069.4A CN202111186069A CN113882165A CN 113882165 A CN113882165 A CN 113882165A CN 202111186069 A CN202111186069 A CN 202111186069A CN 113882165 A CN113882165 A CN 113882165A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 39
- 239000002649 leather substitute Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims description 27
- 238000000576 coating method Methods 0.000 claims abstract description 75
- 239000011248 coating agent Substances 0.000 claims abstract description 74
- 239000010410 layer Substances 0.000 claims abstract description 39
- 239000002344 surface layer Substances 0.000 claims abstract description 32
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 238000007761 roller coating Methods 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 6
- 239000004417 polycarbonate Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 78
- 230000007797 corrosion Effects 0.000 claims description 28
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 10
- 239000008399 tap water Substances 0.000 claims description 10
- 235000020679 tap water Nutrition 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 8
- 229920005862 polyol Polymers 0.000 claims description 8
- 150000003077 polyols Chemical class 0.000 claims description 8
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000005282 brightening Methods 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 abstract description 63
- 239000010985 leather Substances 0.000 abstract description 19
- 229920002635 polyurethane Polymers 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 206010059866 Drug resistance Diseases 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 229940079593 drug Drugs 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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
-
- 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
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
-
- 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
- D06N3/0088—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 directly applying the resin
-
- 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
- D06N2209/105—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
- D06N2211/26—Vehicles, transportation
- D06N2211/263—Cars
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention provides an anti-corrosion PU synthetic leather which comprises a surface layer, an adhesive layer, a surface layer, a back bottom layer and a lining layer, and is prepared by sequentially carrying out blade coating and drying molding by a scraper device through three coating scrapers, wherein the coating speed is 10 +/-3 m/min, the gap of a roller coating part is 1.0 +/-0.3 mm, the coating roller speed is 14 +/-2 m/min, and the temperature of an oven is 130 +/-5 ℃; the anti-corrosion PU synthetic leather prepared by the invention uses polycarbonate type polyurethane as a resin raw material, and combines roller coating printing and layer-by-layer drying forming, so that air holes in the leather are reduced, the compactness is improved, and the anti-corrosion performance of the PU synthetic leather is improved.
Description
Technical Field
The invention relates to the technical field of polyurethane material modification preparation, in particular to an anti-corrosion PU synthetic leather and a preparation method thereof.
Background
The color and the decoration design of the automotive interior need to fully consider the requirements of humanity, the quality of the interior is mainly reflected in the aspects of the color, the texture, the luster, the material, the appearance decoration and the like of interior parts, a safe, comfortable and pleasant driving space is created for customers, and then a high-quality feeling is created, so that the automobile interior is an important means for winning the customers. In recent years, with the development of social economy and the transformation of market supply and demand relations, consumers have changed consumption ideas of passenger cars, so that the demands on car functions and the demands on quality and culture of cars are added more, the influence of car interiors on the sensory quality of the cars is focused, and the details are paid more attention. Polyurethane (abbreviated as PU) is a short name for Polyurethane, and is widely used in many fields of national economy due to its excellent properties.
For the corrosion-resistant and drug-resistant steering wheel PU leather, at the initial stage of development at home and abroad at present, with the requirement of durability of vehicle interior trim in future, the market demands for the product are more and more, and the market prospect is wide, but the research and development of the current corrosion-resistant and drug-resistant steering wheel PU leather synthetic leather need to solve the technical problems of components, a manufacturing method or a manufacturing process of the corrosion-resistant and drug-resistant steering wheel PU leather and evaluation of the physical effect of the corrosion-resistant and drug-resistant steering wheel PU leather; therefore, the invention provides the corrosion-resistant PU synthetic leather and the preparation method thereof.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an anti-corrosion PU synthetic leather which comprises a surface layer, an adhesive layer, a surface layer, a back bottom layer and a lining layer.
In order to achieve the purpose, the invention provides an anti-corrosion PU synthetic leather, which comprises a surface layer, an adhesive layer, a surface layer, a back bottom layer and a lining layer (hereinafter referred to as lining layer for short) woven in a circular weaving mode; preparing the liquid of the surface layer by weight, wherein DMF (dimethyl formamide) is 10-40 parts, polycarbonic acid ester is 30-60 parts, pigment paste is 5-30 parts, and MEK (methyl ethyl ketone) is 10-40 parts; sequentially adding into a stirring barrel, placing on a stirrer with the rotation speed of 200 plus 400rmp, stirring for 30-60min, and sealing in an environment with the temperature of 10-40 ℃ for later use.
The liquid of the adhesive layer comprises component A liquid and component B liquid, wherein the component A liquid is prepared from 40-90 parts by weight of ecological glue, 10-50 parts by weight of flame retardant and 0.5-3 parts by weight of catalyst, 40-90 parts by weight of polyol are sequentially added, and then the mixture is placed on a stirrer with the rotating speed of 200-400rmp for stirring for 30-60 min;
the component B liquid is prepared by sequentially adding 40-90 parts by weight of polyhydric alcohol, 10-50 parts by weight of flame retardant and 0.5-3 parts by weight of catalyst, and then stirring the mixture for 30-60min on a stirrer with the rotation speed of 200-400 rmp;
the viscosity of the component A liquid and the viscosity of the component B liquid are respectively controlled to be 5000-8000cps, and then the component A liquid and the component B liquid are sealed and stored in an environment with the temperature of 10-40 ℃ for later use, and the mixing ratio of the component A liquid to the component B liquid is 0.4-0.95: 1.
the preparation of the liquid of the surface layer comprises, by weight, 10-80 parts of a delustering agent, 10-80 parts of a brightening agent, 0.3-5 parts of a flatting agent, 2-8 parts of a hand feeling agent, 0-5 parts of a thickening agent, 1-10 parts of a cross-linking agent and 0-40 parts of tap water; the raw materials are added into a stirrer with the rotating speed of 200 plus 400rmp and stirred for 30-60min, the viscosity is controlled at 200 plus 500cps, and the mixture is filtered by 200-mesh sand cloth and stored in a normal temperature environment for later use.
The preparation of the liquid of the back bottom layer comprises, by weight, 40-100 parts of resin and 10-60 parts of tap water, the materials are added once and then placed on a stirrer with the rotation speed of 200-800rmp for stirring for 30-60min, the viscosity is controlled at 12000-22000cps, and then the mixture is stored in a normal temperature environment for later use.
In order to achieve the above object, the present invention also provides a preparation method of the corrosion-resistant PU synthetic leather, the preparation method comprising the steps of:
s1, carrying out first coating, namely coating the prepared surface layer liquid on release paper by a first coating scraper in linkage type three-coating scraper equipment, controlling the temperature of the equipment to be 130 +/-5 ℃ and the speed to be 10 +/-3 m/min, and finishing first coating and scraping processing;
s2, performing second coating, namely coating the prepared adhesive layer liquid on release paper with the surface layer by a second coating scraper in linkage type three-coating scraper equipment, controlling the temperature of an equipment oven at 80-120 ℃ and the speed at 10 +/-3 m/min, and finishing second coating and scraping;
s3, gluing, namely gluing the lining layer on the adhesive layer, wherein the gluing gap is 0.3-1.0mm, the gluing pressure is 3-8MPa, and after the lining layer is aged in an aging oven at the temperature of 130 +/-5 ℃, the lining layer and release paper are peeled off to obtain PU grey cloth;
s4, roller coating, namely uniformly coating the prepared surface layer liquid on the PU grey cloth through roller coating equipment at a coating speed of 10 +/-3 m/min, a roller coating part gap of 1.0 +/-0.3 mm, a coating roller speed of 14 +/-2 m/min and an oven temperature of 130 +/-5 ℃, and processing to obtain a PU semi-finished product;
s5, third coating, namely coating the prepared back bottom layer liquid on the back of the PU semi-finished product by a third coating scraper in a scraper device, and drying and molding at the coating speed of 10 +/-3 m/min and the temperature of 160 +/-10 ℃ to form the corrosion-resistant PU synthetic leather.
Compared with the prior art, the invention has the following beneficial effects:
1. the corrosion-resistant PU synthetic leather for the automotive interior has a multilayer structure, adopts multi-pass blade coating in the manufacturing process by using polycarbonate polyurethane as a resin raw material and combines roller coating printing and layer-by-layer drying molding, thereby reducing air holes in the leather and improving the compactness, and further improving the corrosion resistance of the PU synthetic leather. When the anti-corrosion PU synthetic leather bottom blank is prepared by a coating process method, the high-temperature release paper with the texture is used for processing, the processed semi-finished product has the texture desired by a customer, an embossing process is not needed, one process is omitted, the cost is reduced, and the influence on PU artificial leather is reduced by reducing the one-step thermal forming process.
2. The PU synthetic leather prepared by the invention improves the drug resistance of the steering wheel, increases the durability of the steering wheel, and has the key functions that the dry friction meets 2000 times, the wet friction meets 2000 times, the alcohol friction meets 1000 times, the gasoline friction meets 1000 times, and the alkaline sweat friction meets 1000 times and is still intact.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, so that those skilled in the art can fully understand the technical contents of the present invention. It should be understood that the following examples are intended to further illustrate the present invention and should not be construed as limiting the scope of the present invention, and that certain insubstantial modifications and adaptations of the invention by those skilled in the art based on the foregoing description are intended to be covered by the present invention. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
The invention provides a preparation method of corrosion-resistant PU synthetic leather, which comprises the following steps of firstly carrying out one-time blade coating in linkage type three-coating scraper equipment, carrying out blade coating on a prepared surface layer liquid on release paper, controlling the temperature of the equipment at 130 +/-5 ℃ and the speed at 10 +/-3 m/min, and processing through a coating section; secondly, coating the prepared adhesive layer liquid on release paper with surface liquid by using secondary coating in a linkage type three-coating scraper device, controlling the temperature of an equipment oven at 80-120 ℃ and the speed at 10 +/-3 m/min; then, the lining cloth is stuck on the adhesive layer, and the sticking gap is 0.3-1.0 mm; bonding pressure is 3-8MPa, after aging is carried out by an aging oven at the temperature of 130 +/-5 ℃, lining and release paper are peeled, and lining (PU grey cloth) is curled on a trolley for the next project; then uniformly coating the prepared surface layer liquid on PU grey cloth by roller coating equipment, wherein the processing speed of the equipment setting conditions is 10 +/-3 m/min, the gap of a roller coating part is 1.0 +/-0.3 mm, the speed of a coating roller is 14 +/-2 m/min, the temperature of an oven is 130 +/-5 ℃, and after processing, the semi-finished PU leather is curled on a trolley for the next engineering; secondly, the prepared liquid of the back bottom layer is scraped and coated on the back of the PU semi-finished leather for three times by a scraper device, the device is set under the conditions that the speed is 10 +/-3 m/min and the temperature is 160 +/-10 ℃, and the processed PU product is curled on a trolley to finally form the PU synthetic leather for the steering wheel with ultrahigh drug resistance.
Example 1:
in the preparation method of the corrosion-resistant PU synthetic leather provided in this example, the surface layer liquid is prepared by weight, DMF (dimethylformamide): 10 parts of (A); 30 parts of polycarbonate; 5 parts of pigment paste, MEK (methyl ethyl ketone): 10 parts of (A); after the materials are added in sequence, the mixture is put on a stirrer with the rotation speed of 200rmp for stirring for 30min, and then the mixture is sealed and stored in the environment with the room temperature of 10 ℃ for standby. Preparing 40 parts of ecological glue from the component A liquid by weight of the adhesive layer liquid; preparing 40 parts of polyol from the component B liquid; 10 parts of flame retardant, 0.5 part of catalyst and 40 parts of polyol; after 10 parts of flame retardant and 0.5 part of catalyst are added in turn, the mixture is put on a stirrer with the rotation speed of 200rmp for stirring for 30min, the viscosity of the A/B component liquid is respectively controlled at 5000cps, and then the A/B component liquid is sealed and stored in the environment with the room temperature of 10 ℃ for standby, and the mixing ratio of the A/B when in use is 0.4; preparation of surface layer liquid by weight, 10 parts of matting agent; 10 parts of a brightening agent; 0.3 part of a leveling agent; 2 parts of a hand feeling agent, 0 part of a thickening agent, 1 part of a cross-linking agent and 1 part of tap water; adding the above medicinal materials once, stirring for 30min with a stirrer at 200rmp, controlling viscosity at 200cps, filtering with 200 mesh gauze once, and storing at room temperature. The preparation method of the back bottom layer liquid comprises the steps of adding 40 parts by weight of resin and 10 parts by weight of tap water into the back bottom layer liquid at one time, stirring the mixture for 30min on a stirrer with the rotation speed of 200rmp, controlling the viscosity to be 12000cps, and storing the mixture in a normal temperature environment for later use.
The preparation method of the PU synthetic leather comprises the steps of firstly coating a prepared surface layer liquid on release paper by using a first coating in a linkage type three-coating scraper device, controlling the temperature of the device to be 125 ℃ and the speed to be 7m/min, coating the prepared adhesive layer liquid on the release paper with the surface layer liquid by using a second coating in the linkage type three-coating scraper device through the processing of a first coating section, controlling the temperature of an equipment oven to be 80 ℃ and the speed to be 7m/min, and then pasting a lining layer on the adhesive layer with the pasting gap of 0.3 mm; the bonding pressure is 3MPa, after the fabric is aged by an aging oven at the temperature of 125 ℃, the lining layer and release paper are peeled off, and the lining layer (PU semi-finished product) is curled on a trolley for the next project; then uniformly coating the prepared surface layer liquid on a PU semi-finished product by using roller coating equipment, wherein the equipment setting condition processing speed is 7m/min, the gap of a roller coating part is 0.7mm, the coating roller speed is 12m/min, the oven temperature is 125 ℃, and after processing, the semi-finished PU leather is curled on a trolley for the next project; and finally, scraping the prepared gum liquid on the back of the PU semi-finished leather by scraper equipment, setting conditions of the equipment, setting the speed to be 7m/min and the temperature to be 150 ℃, curling the processed PU product on a trolley, and finally forming the PU leather of the steering wheel with ultrahigh corrosion resistance and drug resistance.
Example 2:
in the preparation method of the corrosion-resistant PU synthetic leather provided by the embodiment, the surface layer liquid is prepared by the following components in parts by weight: DMF (dimethylformamide): 20 parts of (1); 40 parts of polycarbonate; 10 parts of pigment paste, MEK (methyl ethyl ketone): 20 parts of (1); after the materials are added in sequence, the mixture is put on a stirrer with the rotating speed of 250rmp for stirring for 40min, and then the mixture is sealed and stored in the environment with the room temperature of 20 ℃ for standby.
Preparation of adhesive layer liquid by weight: 50 parts of ecological glue is prepared from the component A liquid; preparing 50 parts of polyol from the component B liquid; 40 parts of flame retardant, 2 parts of catalyst and 50 parts of polyol; and (3) sequentially adding 20 parts of flame retardant and 1 part of catalyst, placing the mixture on a stirrer with the rotating speed of 300rmp, stirring for 40min, respectively controlling the viscosity of the A/B component liquid to be 6000cps, and then sealing the mixture to the room temperature of 20 ℃ for later use, wherein the mixing ratio of the A/B when in use is 0.6.
Preparation of the table layer liquid by weight: 30 parts of a flatting agent; 30 parts of a brightening agent; 1 part of a leveling agent; 3 parts of a hand feeling agent, 1 part of a thickening agent, 2 parts of a cross-linking agent and 20 parts of tap water; adding the above medicinal materials once, stirring for 40min with a stirrer at 250rmp, controlling viscosity at 300cps, filtering with 200 mesh gauze once, and storing at room temperature.
Preparation of the back bottom layer liquid by weight: 500 parts of resin and 20 parts of tap water, the materials are added at one time and then put on a stirrer with the rotating speed of 300rmp for stirring for 40min, the viscosity is controlled at 13000cps, and then the mixture is stored in a normal temperature environment for standby.
The preparation method of the PU synthetic leather comprises the steps of firstly coating a prepared surface layer liquid on release paper by using a first coating in a linkage type three-coating scraper device, controlling the temperature of the device at 130 ℃ and the speed at 10m/min, coating the prepared adhesive layer liquid on the release paper with the surface layer liquid by using a second coating in the linkage type three-coating scraper device through the processing of a first coating section, controlling the temperature of an equipment oven at 100 ℃ and the speed at 10m/min, and then pasting a lining layer on the adhesive layer with the pasting gap of 0.5 mm; the bonding pressure is 5MPa, the lining layer and the release paper are peeled off after the lining layer is aged by an aging oven at the temperature of 130 ℃, and the lining layer (PU semi-finished product) is curled on a trolley for the next project. And uniformly coating the prepared surface treatment liquid on the PU semi-finished product by using roller coating equipment, wherein the equipment setting conditions comprise that the processing speed is 10m/min, the gap of a roller coating part is 1.0mm, the coating roller speed is 14m/min, the oven temperature is 130 ℃, and after processing, the semi-finished PU leather is curled on a trolley for the next project. And finally, scraping the prepared gum liquid on the back of the PU semi-finished leather by scraper equipment, setting conditions of the equipment, setting the speed to be 10m/min and the temperature to be 160 ℃, curling the processed PU product on a trolley, and finally forming the PU leather of the steering wheel with ultrahigh corrosion resistance and drug resistance.
Example 3:
in the preparation method of the corrosion-resistant PU synthetic leather provided by the embodiment, the surface layer liquid is prepared by the following components in parts by weight: DMF (dimethylformamide): 40 parts of a mixture; 60 parts of polycarbonate; 30 parts of pigment paste, MEK (methyl ethyl ketone): 40 parts of a mixture; after the materials are added in sequence, the mixture is put on a stirrer with the rotating speed of 400rmp for stirring for 60min, and then the mixture is sealed and stored in the environment with the room temperature of 40 ℃ for standby.
Preparation of adhesive layer liquid by weight: 90 parts of ecological glue is prepared from the component A liquid; preparing 90 parts of polyol from the component B liquid; 50 parts of flame retardant, 3 parts of catalyst and 90 parts of polyol; 50 parts of flame retardant and 3 parts of catalyst are added in turn, and then the mixture is put on a stirrer with the rotation speed of 400rmp to be stirred for 60min, the viscosity of the A/B component liquid is controlled at 8000cps respectively, and then the A/B component liquid is sealed to be stored in the environment with the room temperature of 40 ℃ for standby, and the mixing ratio of the A/B when in use is 0.95.
Preparation of the table layer liquid by weight: 80 parts of a flatting agent; 80 parts of a brightening agent; 5 parts of a leveling agent; 8 parts of a hand feeling agent, 5 parts of a thickening agent, 10 parts of a cross-linking agent and 40 parts of tap water; adding the above medicinal materials once, stirring for 60min with a stirrer at 400rmp, controlling viscosity at 500cps, filtering with 200 mesh gauze once, and storing at room temperature.
Preparation of the back bottom layer liquid by weight: 100 parts of resin and 60 parts of tap water, the materials are added at one time and then put on a stirrer with the rotating speed of 800rmp for stirring for 60min, the viscosity is controlled at 22000cps, and then the mixture is stored in a normal temperature environment for later use.
The preparation method of the PU synthetic leather comprises the steps of firstly coating a prepared surface layer liquid on release paper by using a first coating in a linkage type three-coating scraper device, controlling the temperature of the device at 135 ℃ and the speed at 13m/min, coating the prepared adhesive layer liquid on the release paper with the surface layer liquid by using a second coating in the linkage type three-coating scraper device through the processing of a first coating section, controlling the temperature of an equipment oven at 120 ℃ and the speed at 13m/min, and then pasting a lining layer on the adhesive layer with the pasting gap of 1.0 mm; the bonding pressure is 8MPa, the lining layer and the release paper are peeled off after the lining layer is aged by an aging oven at the temperature of 135 ℃, and the lining layer (PU semi-finished product) is curled on a trolley for the next project. And uniformly coating the prepared surface treatment liquid on the PU semi-finished product by using roller coating equipment, wherein the equipment setting conditions comprise the processing speed of 13m/min, the gap of a roller coating part is 1.3mm, the coating roller speed is 16m/min, the oven temperature is 135 ℃, and after processing, the semi-finished PU leather is curled on a trolley for the next project. And finally, scraping the prepared gum liquid on the back of the PU semi-finished leather by a scraper device, setting conditions of the device, setting the speed to be 13m/min and the temperature to be 170 ℃, curling the processed PU product on a trolley, and finally forming the PU leather of the steering wheel with ultrahigh corrosion resistance and drug resistance.
The evaluation method is that the ultrahigh corrosion-resistant and drug-resistant steering wheel PU leather is dry-wiped for 2000 times according to the QB/T2537 detection standard; wet rubbing for 2000 times; resisting alcohol for 1000 times; gasoline resistance is carried out for 1000 times; the alkaline sweat is wiped 1000 times. The synthetic leathers prepared according to the above method were subjected to property tests, and the results are shown in Table 1.
TABLE 1 detection results of the properties of corrosion-resistant PU synthetic leather
By the method, the PU leather of the steering wheel with ultrahigh corrosion resistance and drug resistance can be developed, and the key functions are shown; dry rub through 2000 rubs, wet rub through 2000 rubs, alcohol rub through 1000 rubs, gasoline rub through 1000 rubs, alkaline sweat rub through 1000 rubs as per QB/T2537 test method. The invention can improve the corrosion resistance and the drug resistance of the steering wheel and increase the durability of the steering wheel.
It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides an anticorrosive PU synthetic leather, includes superficial layer, adhesive layer, surface layer, back of the body bottom layer and lining cloth layer, its characterized in that: the preparation of the liquid of the surface layer comprises, by weight, 10-40 parts of dimethylformamide, 30-60 parts of polycarbonate, 5-30 parts of pigment paste and 10-40 parts of butanone; sequentially adding into a stirring barrel, placing on a stirrer with the rotation speed of 200 plus 400rmp, stirring for 30-60min, and sealing in an environment with the temperature of 10-40 ℃ for later use.
2. The corrosion-resistant PU synthetic leather of claim 1, wherein: the liquid of the adhesive layer comprises component A liquid and component B liquid, wherein the component A liquid is prepared from 40-90 parts by weight of ecological glue, 10-50 parts by weight of flame retardant and 0.5-3 parts by weight of catalyst, 40-90 parts by weight of polyol are sequentially added, and then the mixture is placed on a stirrer with the rotating speed of 200-400rmp for stirring for 30-60 min; the mixing ratio of the component A liquid to the component B liquid is 0.4-0.95: 1.
3. the corrosion-resistant PU synthetic leather of claim 2, wherein: the component B liquid is prepared by sequentially adding 40-90 parts by weight of polyhydric alcohol, 10-50 parts by weight of flame retardant and 0.5-3 parts by weight of catalyst, and then stirring the mixture for 30-60min on a stirrer with the rotation speed of 200-400 rmp.
4. The corrosion-resistant PU synthetic leather of claim 2, wherein: the viscosity of the component A liquid and the viscosity of the component B liquid are respectively controlled at 5000-8000cps, and then the components are sealed and stored in an environment with the temperature of 10-40 ℃ for later use.
5. The corrosion-resistant PU synthetic leather of claim 1, wherein: the components of the surface layer are calculated by weight, 10-80 parts of delustering agent, 10-80 parts of brightening agent, 0.3-5 parts of flatting agent, 2-8 parts of hand feeling agent, 0-5 parts of thickening agent, 1-10 parts of cross-linking agent and 0-40 parts of tap water.
6. The corrosion-resistant PU synthetic leather of claim 5, wherein: the preparation of the liquid of the surface layer is that the raw materials of the surface layer are completely added and then put on a stirrer with the rotating speed of 200-400rmp for stirring for 30-60min, the viscosity is controlled at 200-500cps, and the mixture is filtered by 200-mesh sand cloth and then stored in the normal temperature environment for later use.
7. The corrosion-resistant PU synthetic leather of claim 1, wherein: the preparation of the liquid of the back bottom layer comprises the steps of adding 40-100 parts by weight of resin and 10-60 parts by weight of tap water at one time, stirring the mixture for 30-60min on a stirrer with the rotating speed of 200-800rmp, controlling the viscosity to 12000-22000cps, and storing the mixture in a normal temperature environment for later use.
8. A method for preparing corrosion-resistant PU synthetic leather according to any one of claims 1 to 7, characterized by comprising the following steps:
s1, carrying out first coating, namely coating the prepared surface layer liquid on release paper by a first coating scraper in linkage type three-coating scraper equipment, controlling the temperature of the equipment to be 130 +/-5 ℃ and the speed to be 10 +/-3 m/min, and finishing first coating and scraping processing;
s2, performing second coating, namely coating the prepared adhesive layer liquid on release paper with the surface layer by a second coating scraper in linkage type three-coating scraper equipment, controlling the temperature of an equipment oven at 80-120 ℃ and the speed at 10 +/-3 m/min, and finishing second coating and scraping;
s5, third coating, namely coating the prepared back bottom layer liquid on the back of the PU semi-finished product by a third coating scraper in a scraper device, and drying and forming at the coating speed of 10 +/-3 m/min and the temperature of 160 +/-10 ℃ by the device to form the corrosion-resistant PU synthetic leather.
9. The method for preparing the anti-corrosion PU synthetic leather according to claim 8, wherein the method comprises the following steps: and the method also comprises the step of S3 gluing, wherein the lining layer is adhered to the adhesive layer, the adhering gap is 0.3-1.0mm, the adhering pressure is 3-8MPa, and after the lining layer and the release paper are peeled off after the ageing treatment in an ageing oven with the temperature of 130 +/-5 ℃, the PU grey cloth is obtained.
10. The method for preparing the anti-corrosion PU synthetic leather according to claim 8, wherein the method comprises the following steps: and step S4, roller coating is carried out, the prepared surface layer liquid is uniformly coated on PU grey cloth through roller coating equipment, the coating speed is 10 +/-3 m/min, the gap of a roller coating part is 1.0 +/-0.3 mm, the coating roller speed is 14 +/-2 m/min, the oven temperature is 130 +/-5 ℃, and the PU semi-finished product is obtained after processing.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191693A (en) * | 2011-05-16 | 2011-09-21 | 福州福营塑胶制品有限公司 | Method for producing high-visibility polyurethane artificial leather |
| CN102352100A (en) * | 2011-06-15 | 2012-02-15 | 浙江华峰合成树脂有限公司 | Fast cured two-liquid type non-yellowing polyurethane bonding layer resin for synthetic leather and preparation method thereof |
| KR20120133210A (en) * | 2011-05-31 | 2012-12-10 | 코오롱글로텍주식회사 | Method of polyurethane artificial leather for interior materials of automobile |
| CN103255640A (en) * | 2013-04-19 | 2013-08-21 | 晋江市闽高纺织科技有限公司 | Environmentally-friendly flame retardant polyurethane synthetic leather, preparation method and product thereof |
| CN103255639A (en) * | 2013-04-19 | 2013-08-21 | 晋江市闽高纺织科技有限公司 | Environmentally-friendly polyurethane leather, preparation method and product thereof |
| CN108193506A (en) * | 2018-02-02 | 2018-06-22 | 天守(福建)超纤科技股份有限公司 | A kind of automotive trim graphene superfine fiber chemical leather |
| CN108797133A (en) * | 2018-05-22 | 2018-11-13 | 佛山市高明区生产力促进中心 | A kind of PU artificial leathers with acid-proof alkaline |
| CN108797148A (en) * | 2018-05-22 | 2018-11-13 | 佛山市高明区生产力促进中心 | A kind of PU leather and preparation method thereof with wear-resisting scratch-resisting |
| CN110144738A (en) * | 2019-05-13 | 2019-08-20 | 浙江禾欣新材料有限公司 | Folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance |
| CN110373912A (en) * | 2019-07-23 | 2019-10-25 | 东风汽车集团有限公司 | A kind of PVC artificial leather and preparation method thereof, the automotive seat containing the PVC artificial leather |
| CN110670377A (en) * | 2019-10-10 | 2020-01-10 | 福建宝利特科技股份有限公司 | Solvent-free flame-retardant synthetic leather and preparation method thereof |
| WO2020067850A1 (en) * | 2018-09-28 | 2020-04-02 | 주식회사 엘지하우시스 | Artificial leather for automotive interior material and manufacturing method thereof |
| CN111809404A (en) * | 2020-07-07 | 2020-10-23 | 世联汽车内饰（苏州）有限公司 | Waterborne polyurethane composite leather and preparation method thereof |
| CN112593419A (en) * | 2020-12-07 | 2021-04-02 | 安徽安利材料科技股份有限公司 | Preparation method of water-based low-temperature printing environment-friendly polyurethane synthetic leather |
| US20210222361A1 (en) * | 2018-09-28 | 2021-07-22 | Lg Hausys, Ltd. | Artificial leather for automotive interior materials and method of manufacturing the same |
-
2021
- 2021-10-12 CN CN202111186069.4A patent/CN113882165A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191693A (en) * | 2011-05-16 | 2011-09-21 | 福州福营塑胶制品有限公司 | Method for producing high-visibility polyurethane artificial leather |
| KR20120133210A (en) * | 2011-05-31 | 2012-12-10 | 코오롱글로텍주식회사 | Method of polyurethane artificial leather for interior materials of automobile |
| CN102352100A (en) * | 2011-06-15 | 2012-02-15 | 浙江华峰合成树脂有限公司 | Fast cured two-liquid type non-yellowing polyurethane bonding layer resin for synthetic leather and preparation method thereof |
| CN103255640A (en) * | 2013-04-19 | 2013-08-21 | 晋江市闽高纺织科技有限公司 | Environmentally-friendly flame retardant polyurethane synthetic leather, preparation method and product thereof |
| CN103255639A (en) * | 2013-04-19 | 2013-08-21 | 晋江市闽高纺织科技有限公司 | Environmentally-friendly polyurethane leather, preparation method and product thereof |
| CN108193506A (en) * | 2018-02-02 | 2018-06-22 | 天守(福建)超纤科技股份有限公司 | A kind of automotive trim graphene superfine fiber chemical leather |
| CN108797133A (en) * | 2018-05-22 | 2018-11-13 | 佛山市高明区生产力促进中心 | A kind of PU artificial leathers with acid-proof alkaline |
| CN108797148A (en) * | 2018-05-22 | 2018-11-13 | 佛山市高明区生产力促进中心 | A kind of PU leather and preparation method thereof with wear-resisting scratch-resisting |
| WO2020067850A1 (en) * | 2018-09-28 | 2020-04-02 | 주식회사 엘지하우시스 | Artificial leather for automotive interior material and manufacturing method thereof |
| US20210222361A1 (en) * | 2018-09-28 | 2021-07-22 | Lg Hausys, Ltd. | Artificial leather for automotive interior materials and method of manufacturing the same |
| CN110144738A (en) * | 2019-05-13 | 2019-08-20 | 浙江禾欣新材料有限公司 | Folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance |
| CN110373912A (en) * | 2019-07-23 | 2019-10-25 | 东风汽车集团有限公司 | A kind of PVC artificial leather and preparation method thereof, the automotive seat containing the PVC artificial leather |
| CN110670377A (en) * | 2019-10-10 | 2020-01-10 | 福建宝利特科技股份有限公司 | Solvent-free flame-retardant synthetic leather and preparation method thereof |
| CN111809404A (en) * | 2020-07-07 | 2020-10-23 | 世联汽车内饰（苏州）有限公司 | Waterborne polyurethane composite leather and preparation method thereof |
| CN112593419A (en) * | 2020-12-07 | 2021-04-02 | 安徽安利材料科技股份有限公司 | Preparation method of water-based low-temperature printing environment-friendly polyurethane synthetic leather |
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Application publication date: 20220104 |