CN114308588A - Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material - Google Patents
Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material Download PDFInfo
- Publication number
- CN114308588A CN114308588A CN202111617622.5A CN202111617622A CN114308588A CN 114308588 A CN114308588 A CN 114308588A CN 202111617622 A CN202111617622 A CN 202111617622A CN 114308588 A CN114308588 A CN 114308588A
- Authority
- CN
- China
- Prior art keywords
- solvent
- free
- polyurethane
- layer
- slurry
- 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
- 239000004814 polyurethane Substances 0.000 title claims abstract description 61
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000004417 polycarbonate Substances 0.000 title description 30
- 229920006289 polycarbonate film Polymers 0.000 title description 2
- 239000010410 layer Substances 0.000 claims abstract description 54
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 238000001035 drying Methods 0.000 claims abstract description 39
- 239000002344 surface layer Substances 0.000 claims abstract description 36
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 21
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 239000012948 isocyanate Substances 0.000 claims abstract description 3
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 229920005749 polyurethane resin Polymers 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 8
- 238000009835 boiling Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 3
- 150000002513 isocyanates Chemical class 0.000 abstract description 2
- 238000006757 chemical reactions by type Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 239000003431 cross linking reagent Substances 0.000 description 6
- 239000002518 antifoaming agent Substances 0.000 description 5
- 239000002562 thickening agent Substances 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 239000005056 polyisocyanate Substances 0.000 description 4
- 229920001228 polyisocyanate Polymers 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012994 photoredox catalyst Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006561 solvent free reaction Methods 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a preparation method and application of a water-based solvent-free polyurethane/PC film composite material, wherein the preparation method mainly comprises the following steps: coating surface layer slurry on release paper and drying to form a polyurethane dry surface layer; coating middle layer slurry on the surface of the polyurethane dry-method surface layer and drying to form a middle layer; coating a bicomponent solvent-free slurry on the surface of the middle layer to form a solvent-free foaming layer, wherein the bicomponent solvent-free slurry is combined with a material A consisting of 100 parts by weight of polyester polyol CC6945/5315C-A, 0-60 parts by weight of calcium carbonate and 0.1-0.5 part by weight of a catalyst, and a material B consisting of isocyanate prepolymer CC 6945/5315C-B; and finally, adhering a PC film, and curing to obtain the water-based solvent-free polyurethane/PC film composite material. The process has no solvent residue and low odor, and the solvent-free material is a reaction type material, is combined with the PC film through a chemical bond, has high bonding strength and good constant temperature and humidity performance and hydrolysis resistance, and can meet the test requirements of high temperature and high humidity and boiling resistance of electronic products.
Description
Technical Field
The invention belongs to the technical field of polyurethane synthetic leather, and particularly relates to a preparation method and application of a water-based solvent-free polyurethane/PC film composite material.
Background
The raw materials of the existing electronic packages and certificates, such as mobile phone covers, tablet computer covers and other certificate covers, are mainly TPU, PC, metal and the like, but the materials have single appearance and touch feeling and are mainly used in some low-end products. Later in order to promote the whole grade of product, regard TPU, PC, metal etc. as interior lining use, play the supporting role, the surface reuse PU or the TPU who pastes the face provide line and sense of touch.
The traditional processing flow mainly comprises the following steps: the production process of the technology is overlong, the yield is difficult to guarantee, the odor problem exists due to the adoption of glue, most electronic accessory factories mainly focus on a very small subdivision link, the factories mainly take charge of assembly work, the flows such as compounding, cutting and the like are generally divided and distributed to cooperative factories, and the increase of a supply chain further increases the cost.
By directly compounding the polyurethane PU and the PC film, the process flow can be shortened and the problem of odor can be avoided. For example, in chinese patent application publication No. CN101190585A, a method for producing PU with PC film is proposed, which uses solvent type polyurethane semi-dry-bonding process to compound PU and PC film through PU adhesive layer, but because PC film usually has no air-permeable micropores, organic solvent cannot be discharged after bonding, the solvent residue of the obtained finished product is serious, and the problem of heavy odor still exists, which cannot meet the needs of customers.
The Chinese patent application with the publication number of CN112571905A provides a TPU/PC composite material and a preparation method and application thereof, wherein tackified aqueous polyurethane resin is used as an adhesive layer, but the aqueous polyurethane is mainly bonded by hydrogen bonds due to the structure, the hydrogen bonding capability under high temperature and high humidity is reduced, and the high temperature and high humidity test requirements of electronic products cannot be met.
Disclosure of Invention
In view of the above, the present invention needs to provide a method for preparing an aqueous solvent-free polyurethane/PC film composite material, in which aqueous polyurethane is used as a surface layer and an intermediate layer, and a solvent-free adhesive layer is used, the method has no solvent residue and low odor, and the solvent-free adhesive material is a reactive material, and is bonded with a PC film through a chemical bond, so that the adhesive strength is high, the constant temperature and humidity performance and the boiling resistance are good, and the requirements of high temperature and high humidity and boiling resistance tests of electronic products can be met.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention firstly provides a preparation method of a water-based solvent-free polyurethane/PC film composite material, which comprises the following steps:
coating surface layer slurry on release paper and drying to form a polyurethane dry surface layer;
coating middle layer slurry on the surface of the polyurethane dry-method surface layer and drying to form a middle layer;
and coating a two-component solvent-free slurry on the surface of the middle layer to form a solvent-free foaming layer, wherein the two-component solvent-free slurry is prepared from the following components in percentage by mass (1.5-2.5): 1, wherein the material A is prepared by mixing 100 parts of polyester polyol CC6945/5315C-A, 0-60 parts of calcium carbonate and 0.1-0.5 part of catalyst according to parts by weight, and the material B is isocyanate prepolymer CC 6945/5315C-B;
and (3) adhering a PC film on the surface of the solvent-free foaming layer, and curing to obtain the water-soluble polyurethane/PC composite material.
In a further scheme, the polyurethane dry-process surface layer is formed by the following specific processes: coating the surface layer slurry on release paper, and treating for 3-5min at 70-130 ℃ according to a step program to obtain the polyurethane dry surface layer.
Further, the surface layer slurry comprises, by weight, 80-120 parts of aqueous polyurethane resin, 5-15 parts of a colorant and 0.10-0.50 part of a leveling agent, wherein the colorant is selected from toner and/or color paste.
In a further scheme, the forming of the intermediate layer comprises the following specific processes: and coating the intermediate layer slurry on the surface of the polyurethane dry-process surface layer, and treating for 3-5min at 70-130 ℃ according to a step program to obtain the intermediate layer.
Further, the intermediate layer slurry comprises 80-120 parts by weight of waterborne polyurethane resin, 5-15 parts by weight of colorant and 0.10-0.50 part by weight of leveling agent, wherein the colorant is selected from toner and/or color paste.
In a further scheme, the formation of the solvent-free foaming layer comprises the following specific processes: and coating the surface of the middle layer with two-component solvent-free slurry, and pre-drying to form a solvent-free foaming layer.
In a further scheme, the pre-drying temperature is 80-120 ℃, and the time is 2-4 min.
In a further scheme, the curing temperature is 80-120 ℃, and the curing time is 10-20 min.
In a further scheme, the thickness of the PC film is 0.05-0.3 mm.
The invention further provides an application of the water-based solvent-free polyurethane/PC film composite material in an electronic product, wherein the electronic product is selected from a tablet personal computer protective sleeve, an external keyboard or a mobile phone shell, and the water-based solvent-free polyurethane/PC film composite material is prepared by adopting the preparation method of any one of the above.
Compared with the prior art, the invention has the following beneficial effects:
the water-based solvent-free polyurethane/PC film composite material can be formed at one time, so that the process flow is reduced, and the production efficiency is improved. The use of hot melt adhesive or solvent type PU is avoided, so that the production process has no glue or solvent residue, has low smell and conforms to the environmental protection trend; and the solvent-free reaction type material is combined with the PC film through a chemical bond, so that the bonding strength is high, the constant temperature and humidity performance and the boiling resistance are good, and the high temperature and high humidity and boiling resistance test requirements of electronic products can be met.
Detailed Description
The present invention is illustrated below by way of specific examples, which are intended to be illustrative only and not to limit the scope of the present invention in any way, and reagents and materials used therein are commercially available, unless otherwise specified, and conditions or steps thereof are not specifically described.
The raw material information used in the examples and comparative examples is specifically as follows:
the waterborne polyurethane resin WPU-345B is aliphatic waterborne polyurethane resin produced by Xiamen large industry Co.Ltd;
the aqueous polyurethane resin DS-M938 is aliphatic aqueous polyurethane resin produced by Jiangsu Dorsen chemical Co., Ltd;
the water-based color paste is purchased from Shanghai Fukun Enable industry Co., Ltd;
the aqueous leveling agent DS-5333 is purchased from Jiangsu Dorsen chemical Co., Ltd;
the aqueous crosslinking agent XR5588, the aqueous defoaming agent DF-2459 and the aqueous thickening agent RM-4456 are purchased from Steyr Fine coatings, Inc.;
polyether polyol prepolymer A material CC6945/5315C-A, polyisocyanate prepolymer B material CC6945/5315C-B and catalyst CC6945/5315C-90CC are purchased from BASF polyurethane (China) Co., Ltd;
the superfine calcium carbonate is purchased from Anhui river nanotechnology GmbH, Anhui province;
PC films were purchased from electronics materials, Inc. before the sale of Dongguan.
Example 1
Coating surface layer slurry with the thickness of 0.1mm on release paper, setting the step program of drying temperature to 70/90/110 ℃ and the drying time to 5min to obtain a polyurethane dry-process surface layer, wherein the surface layer slurry is prepared by mixing 100 parts of waterborne polyurethane WPU-345B and 10 parts of waterborne color paste according to parts by weight;
coating middle layer slurry with the thickness of 0.2mm on the surface of the polyurethane dry-process surface layer, setting the step program of drying temperature to 70/90/110 ℃, and drying for 5min to obtain the water-based middle layer, wherein the middle layer slurry is prepared by mixing 100 parts of water-based polyurethane DS-M938, 1 part of cross-linking agent XR5588, 1 part of water-based thickening agent RM-4456, 15 parts of water-based color paste, 0.5 part of water-based leveling agent DS-5333 and 0.4 part of water-based defoaming agent DF-2459;
100 parts of polyether polyol prepolymer A material CC6945/5315C-A, 0.05 part of catalyst CC6945/90C-CC and 20 parts of superfine calcium carbonate are mixed into a combined A material in advance, then the combined A material and polyisocyanate B material CC6945/5315C-B are mixed by a high-speed mixing coating gun, coated on the surface of an aqueous intermediate layer with the thickness of 0.2mm, and pre-dried for 4min at 80 ℃ to enable the aqueous intermediate layer to have certain viscosity, so as to form a solvent-free layer;
and (3) adhering 0.05mm of PC film to the solvent-free layer, then sending the mixture into an oven for curing at the curing temperature of 80 ℃ for 20min, and cooling and stripping to obtain the water-based solvent-free polyurethane/PC film composite material.
Example 2
Coating surface layer slurry with the thickness of 0.08mm on release paper, setting the step program of drying temperature to 80/100/120 ℃ and the drying time to be 4min, and obtaining a polyurethane dry-process surface layer, wherein the surface layer slurry is prepared by mixing 100 parts of waterborne polyurethane WPU-345B and 10 parts of waterborne color paste according to parts by weight;
coating middle layer slurry with the thickness of 0.18mm on the surface of the polyurethane dry-process surface layer, setting the step program of drying temperature to 90/110/130 ℃, and drying for 4min to obtain the water-based middle layer, wherein the middle layer slurry is prepared by mixing 100 parts of water-based polyurethane DS-M938, 1 part of cross-linking agent XR5588, 1 part of water-based thickening agent RM-4456, 15 parts of water-based color paste, 0.4 part of water-based leveling agent DS-5333 and 0.3 part of water-based defoaming agent DF-2459;
100 parts of polyether polyol prepolymer A material CC6945/5315C-A, 0.05 part of catalyst CC6945/90C-CC and 20 parts of superfine calcium carbonate are mixed into a combined A material in advance, then the combined A material and polyisocyanate B material CC6945/5315C-B are mixed by a high-speed mixing coating gun, coated on the surface of an aqueous intermediate layer with the thickness of 0.22mm, and pre-dried for 3min at 100 ℃ to enable the aqueous intermediate layer to have certain viscosity, so as to form a solvent-free layer;
and (3) adhering 0.1mm of PC film to the solvent-free layer, then sending the mixture into an oven for curing at the curing temperature of 100 ℃ for 15min, and cooling and stripping to obtain the water-based solvent-free polyurethane/PC film composite material.
Example 3
Coating surface layer slurry with the thickness of 0.12mm on release paper, setting the step program of drying temperature to 90/110/130 ℃ and drying time to be 3min to obtain a polyurethane dry-process surface layer, wherein the surface layer slurry is prepared by mixing 100 parts of waterborne polyurethane WPU-345B and 10 parts of waterborne color paste according to parts by weight;
coating middle layer slurry with the thickness of 0.18mm on the surface of the polyurethane dry-process surface layer, setting the step program of drying temperature to 80/105/130 ℃, and drying for 3min to obtain the water-based middle layer, wherein the middle layer slurry is prepared by mixing 100 parts of water-based polyurethane DS-M938, 1 part of cross-linking agent XR5588, 1 part of water-based thickening agent RM-4456, 15 parts of water-based color paste, 0.3 part of water-based leveling agent DS-5333 and 0.2 part of water-based defoaming agent DF-2459;
100 parts of polyether polyol prepolymer A material CC6945/5315C-A, 0.05 part of catalyst CC6945/90C-CC and 20 parts of superfine calcium carbonate are mixed into a combined A material in advance, then the combined A material and polyisocyanate B material CC6945/5315C-B are mixed by a high-speed mixing coating gun, coated on the surface of an aqueous intermediate layer with the thickness of 0.18mm, and pre-dried at 120 ℃ for 2min to enable the aqueous intermediate layer to have certain viscosity, so as to form a solvent-free layer;
and (3) adhering 0.3mm of PC film to the solvent-free layer, then sending the mixture into an oven for curing at the temperature of 120 ℃ for 10min, and cooling and stripping to obtain the water-based solvent-free polyurethane/PC film composite material.
Comparative example 1
Coating surface layer slurry with the thickness of 0.08mm on release paper, setting the step program of drying temperature to 80/100/120 ℃ and the drying time to be 4min, and obtaining a polyurethane dry-process surface layer, wherein the surface layer slurry is prepared by mixing 100 parts of waterborne polyurethane WPU-345B and 10 parts of waterborne color paste according to parts by weight;
coating middle layer slurry with the thickness of 0.18mm on the surface of the polyurethane dry-process surface layer, setting the step program of drying temperature to 90/110/130 ℃, and drying for 4min to obtain the water-based middle layer, wherein the middle layer slurry is prepared by mixing 100 parts of water-based polyurethane DS-M938, 1 part of cross-linking agent XR5588, 1 part of water-based thickening agent RM-4456, 15 parts of water-based color paste, 0.4 part of water-based leveling agent DS-5333 and 0.3 part of water-based defoaming agent DF-2459;
coating water-based adhesive layer slurry with the thickness of 0.18mm on the surface of the water-based middle layer, setting the step procedure of drying at 90/110/130 ℃ and drying for 4min to obtain a water-based adhesive layer, wherein the water-based adhesive layer slurry is prepared by mixing 100 parts of water-based polyurethane WPU-616 (produced by Xiamen large and commercial Co., Ltd.) and 1 part of cross-linking agent XR 5588;
and (3) adhering 0.1mm of PC film to the aqueous adhesive layer, then delivering the adhered film into an oven for curing at the curing temperature of 100 ℃ for 15min, and cooling and stripping to obtain the aqueous polyurethane/PC film composite material.
Test example
The composite materials prepared in the examples and comparative examples were respectively subjected to the relevant performance tests, and the test results are shown in table 1.
Table 1 composite material performance test results
The test results in table 1 show that the water-based solvent-free polyurethane/PC film composite material has better peeling force, excellent boiling resistance, constant temperature and humidity performance, high bonding strength, good constant temperature and humidity performance and boiling resistance, and better environmental protection property without solvent residue compared with the conventional solvent-based composite material.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The preparation method of the water-based solvent-free polyurethane/PC film composite material is characterized by comprising the following steps:
coating surface layer slurry on release paper and drying to form a polyurethane dry surface layer;
coating middle layer slurry on the surface of the polyurethane dry-method surface layer and drying to form a middle layer;
and coating a two-component solvent-free slurry on the surface of the middle layer to form a solvent-free foaming layer, wherein the two-component solvent-free slurry is prepared from the following components in percentage by mass (1.5-2.5): 1, wherein the material A is prepared by mixing 100 parts of polyester polyol CC6945/5315C-A, 0-60 parts of calcium carbonate and 0.1-0.5 part of catalyst according to parts by weight, and the material B is isocyanate prepolymer CC 6945/5315C-B;
and (3) adhering a PC film on the surface of the solvent-free foaming layer, and curing to obtain the waterborne polyurethane/PC composite material.
2. The preparation method of claim 1, wherein the polyurethane dry-process surface layer is formed by the following specific processes: coating the surface layer slurry on release paper, and treating for 3-5min at 70-130 ℃ according to a step program to obtain the polyurethane dry surface layer.
3. The preparation method of claim 1, wherein the surface layer slurry comprises 80 to 120 parts by weight of aqueous polyurethane resin, 5 to 15 parts by weight of a colorant and 0.10 to 0.50 part by weight of a leveling agent, wherein the colorant is selected from toner and/or color paste.
4. The method according to claim 1, wherein the intermediate layer is formed by a specific process comprising: and coating the intermediate layer slurry on the surface of the polyurethane dry-process surface layer, and treating for 3-5min at 70-130 ℃ according to a step program to obtain the intermediate layer.
5. The preparation method of claim 1, wherein the intermediate layer slurry comprises 80 to 120 parts by weight of aqueous polyurethane resin, 5 to 15 parts by weight of a colorant and 0.10 to 0.50 part by weight of a leveling agent, wherein the colorant is selected from a toner and/or a color paste.
6. The method according to claim 1, wherein the solvent-free foamed layer is formed by a process comprising: and coating the surface of the middle layer with two-component solvent-free slurry, and pre-drying to form a solvent-free foaming layer.
7. The method of claim 6, wherein the pre-baking is performed at a temperature of 80-120 ℃ for 2-4 min.
8. The method according to claim 1, wherein the aging temperature is 80-120 ℃ and the aging time is 10-20 min.
9. The method of claim 1, wherein the PC film has a thickness of 0.05 to 0.3 mm.
10. The application of the water-based solvent-free polyurethane/PC film composite material in electronic products, wherein the electronic products are selected from tablet personal computer protective sleeves, external keyboards or mobile phone shells, and the water-based solvent-free polyurethane/PC film composite material is prepared by the preparation method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111617622.5A CN114308588A (en) | 2021-12-27 | 2021-12-27 | Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111617622.5A CN114308588A (en) | 2021-12-27 | 2021-12-27 | Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114308588A true CN114308588A (en) | 2022-04-12 |
Family
ID=81014598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111617622.5A Pending CN114308588A (en) | 2021-12-27 | 2021-12-27 | Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114308588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117143377A (en) * | 2023-09-13 | 2023-12-01 | 哈尔滨理工大学 | Preparation method and application of polycarbonate and polyurethane blend type film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133372A (en) * | 2015-09-29 | 2015-12-09 | 安徽安利材料科技股份有限公司 | Preparation method of polyurethane synthetic leather used for TPU electronic packages and stationery certificates |
| CN110541312A (en) * | 2019-08-26 | 2019-12-06 | 安徽安利材料科技股份有限公司 | Skin-friendly environment-friendly polyurethane synthetic leather for earphone sleeves and preparation method thereof |
| CN112571905A (en) * | 2020-11-30 | 2021-03-30 | 苏州瑞高新材料有限公司 | TPU/PC composite material and preparation method and application thereof |
| JP2021066031A (en) * | 2019-10-18 | 2021-04-30 | 凸版印刷株式会社 | Laminate film, packaging bag, method for producing laminate film, and method for producing packaging bag |
| CN113699804A (en) * | 2021-09-22 | 2021-11-26 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for football shoes and preparation method thereof |
-
2021
- 2021-12-27 CN CN202111617622.5A patent/CN114308588A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133372A (en) * | 2015-09-29 | 2015-12-09 | 安徽安利材料科技股份有限公司 | Preparation method of polyurethane synthetic leather used for TPU electronic packages and stationery certificates |
| CN110541312A (en) * | 2019-08-26 | 2019-12-06 | 安徽安利材料科技股份有限公司 | Skin-friendly environment-friendly polyurethane synthetic leather for earphone sleeves and preparation method thereof |
| JP2021066031A (en) * | 2019-10-18 | 2021-04-30 | 凸版印刷株式会社 | Laminate film, packaging bag, method for producing laminate film, and method for producing packaging bag |
| CN112571905A (en) * | 2020-11-30 | 2021-03-30 | 苏州瑞高新材料有限公司 | TPU/PC composite material and preparation method and application thereof |
| CN113699804A (en) * | 2021-09-22 | 2021-11-26 | 安徽安利材料科技股份有限公司 | Polyurethane synthetic leather for football shoes and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117143377A (en) * | 2023-09-13 | 2023-12-01 | 哈尔滨理工大学 | Preparation method and application of polycarbonate and polyurethane blend type film |
| CN117143377B (en) * | 2023-09-13 | 2024-05-10 | 哈尔滨理工大学 | Preparation method and application of polycarbonate and polyurethane blend type film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020118746A1 (en) | Soft solvent-free flame-retardant polyurethane synthetic leather and preparation method therefor | |
| CN105401460A (en) | Solvent-free synthetic leather and manufacturing method thereof | |
| CN101417579B (en) | Decorating film | |
| CN110644255B (en) | Waterborne foaming velvet solvent-free composite polyurethane synthetic leather for sofa and preparation method thereof | |
| CN107313263A (en) | The preparation method of organic solvent-resistant polyurethane synthetic leather for sofa furniture | |
| CN110086898B (en) | Mobile terminal component and preparation method thereof | |
| CN103555172A (en) | Automobile trim PU (Poly Urethane) double-component plastic paint as well as preparation method and construction method thereof | |
| CN104032587A (en) | Method for preparing embossable solvent-free synthetic leather | |
| CN103756531A (en) | Double-component polyester hand feeling coating for carbon fiber composite material | |
| CN107503168A (en) | A kind of high flame retardant no-solvent polyurethane synthetic leather and preparation method thereof | |
| CN101503861A (en) | Two-liquid type rapid stripping synthetic leather composite overlay | |
| CN108246586A (en) | External coating technique and plank | |
| CN114308588A (en) | Preparation method and application of water-based solvent-free polyurethane/PC (polycarbonate) film composite material | |
| CN106120364A (en) | A kind of manufacture method of TPU sports play shoes Synthetic Leather | |
| CN111645393A (en) | Automobile interior decoration plate with self-repairing function and preparation method thereof | |
| CN106833115B (en) | Silk-screen printing ink for in-mold decoration and preparation method thereof | |
| CN101285271A (en) | High temperature resistant, elastic and color-changing resin composition for chemical leather | |
| CN102533030A (en) | Coating for vehicle, and preparation method for coating | |
| CN103770390B (en) | A kind of ultra-thin composite material sheet of continuous fiber with different surfaces pattern and its preparation method and application | |
| CN106192439A (en) | A kind of preparation method of environmental protection easy decontamination synthetic leather | |
| CN112515321B (en) | Nail patch and method for manufacturing same | |
| CN112195663B (en) | Regenerated silk water-based solvent-free polyurethane synthetic leather for packaging and preparation method thereof | |
| CN111995894A (en) | Extinction paper-removing additive for thermal transfer powder coating | |
| CN101209613A (en) | Method of preparing slip surface waterproof membrane and its applying cloth | |
| CN113550173B (en) | Micro-grid release paper 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220412 |
|
| RJ01 | Rejection of invention patent application after publication |