CN212770543U - TPU protection film with separation salt fog steam - Google Patents
TPU protection film with separation salt fog steam Download PDFInfo
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- CN212770543U CN212770543U CN202020363147.8U CN202020363147U CN212770543U CN 212770543 U CN212770543 U CN 212770543U CN 202020363147 U CN202020363147 U CN 202020363147U CN 212770543 U CN212770543 U CN 212770543U
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Abstract
The utility model discloses a TPU protective film with the function of blocking salt mist and water vapor, which sequentially comprises an alumina layer, a substrate layer and an anti-scratch self-repairing layer from bottom to top; wherein the base material layer is a TPU film and an ethylene-vinyl alcohol copolymer co-extrusion layer. The aliphatic TPU adhesive tape film has the advantages of simple structure, low processing cost, salt mist and water vapor blocking, UV resistance and scratch resistance.
Description
Technical Field
The utility model belongs to expose the protection film of warship, steamer etc. in atmosphere or sea water, especially relate to a TPU protection film with separation salt fog steam.
Background
The topsides, the exteriors of superstructures, weather decks and deck outfitting parts and the like of warships and ships are located in a marine atmosphere exposed area, and the parts are located in humid marine atmosphere for years, are corroded by salt mist water vapor and the like, are often exposed to sunlight and sometimes are impacted by sea waves, have great damage to original finish paint, and need to be protected by attaching a TPU protective film with wear resistance, ultraviolet aging resistance, salt mist resistance, high-temperature water vapor resistance and sea wave erosion resistance. At present, the special material is monopolized abroad. With the continuous development of ships and warships and the modernized construction of army in China, more rigorous requirements on the safety performance and the service life of equipment under severe conditions are provided, and the localization work of special materials is urgent.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a TPU protection film with separation salt fog steam, this protection film simple structure, processing cost are low, have separation salt fog steam, resistant UV, anti scratch function's aliphatic TPU takes the glued membrane.
In order to solve the above problem, the technical scheme of the utility model is that:
the TPU protective film with the function of blocking salt mist and water vapor sequentially comprises an aluminum oxide layer, a base material layer and an anti-scratch self-repairing layer from bottom to top;
the base material layer is a TPU film containing an ultraviolet-resistant auxiliary agent and an ethylene-vinyl alcohol copolymer co-extrusion layer, and the addition amount of the ultraviolet-resistant auxiliary agent is 0.2-0.4 wt%.
Preferably, the aluminum oxide layer is arranged on the lower surface of the aluminum oxide layer.
Further preferably, still include from the type rete, it sets up to leave the type rete the lower surface of pressure-sensitive glued membrane.
Preferably, the thickness of the aluminum oxide layer is 1-10 μm.
Preferably, the thickness of the scratch-resistant self-repairing layer is 2-20 μm.
Preferably, the thickness of the pressure-sensitive adhesive layer is 10 μm to 100 μm.
Preferably, the thickness of the release film layer is 1 μm to 5 μm.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
the utility model has simple structure and low processing cost, and has good performance of resisting UV and blocking salt mist and water vapor through the co-extrusion of aliphatic TPU with UV resistant auxiliary agent and EVOH (ethylene-vinyl alcohol copolymer); by coating with Al2O3A layer having a dual salt spray water vapor barrier function; by coating the scratch-resistant self-repairing layer, the original finish paint can be well protected, and scratches can be self-repaired.
Drawings
Fig. 1 is the cross section structure schematic diagram of the TPU protection film in the utility model.
Description of reference numerals: 1-a substrate layer; 2-alumina layer (Al)2O3A layer); 3-a pressure sensitive adhesive layer; 4-a release film layer; 5-anti-scratch self-repairing layer.
Detailed Description
The TPU protective film with salt mist and water vapor barrier function provided by the present invention is further described in detail with reference to the accompanying drawings and the specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Referring to fig. 1, the TPU protective film with salt mist and water vapor barrier function sequentially comprises an aluminum oxide layer 2, a substrate layer 1 and an anti-scratch self-repairing layer 5 from bottom to top;
the ultraviolet-resistant auxiliary agent is a co-extruded layer of a TPU (thermoplastic polyurethane elastomer rubber) film containing an ultraviolet-resistant auxiliary agent and EVOH (ethylene-vinyl alcohol copolymer), the addition amount of the ultraviolet-resistant auxiliary agent is 0.2-0.4 wt%, the ultraviolet-resistant auxiliary agent is generally a benzotriazole ultraviolet absorbent, the upper layer is TPU, and the lower layer is EVOH. The scratch-resistant self-repairing layer is generally made of polyurethane acrylic resin.
Preferably, the aluminum oxide protective film further comprises a pressure-sensitive adhesive layer 3, wherein the pressure-sensitive adhesive layer 3 is arranged on the lower surface of the aluminum oxide layer 2, the pressure-sensitive adhesive layer 3 can be used for being adhered to the surface of a product needing to be protected, and the pressure-sensitive adhesive is generally selected from one or more of acrylic adhesive, rubber adhesive and organic silicon adhesive.
Further preferably, still include from type rete 4, it is in to set up from type rete 4 the lower surface of pressure sensitive adhesive layer 3, from type rete 4 is the TPU protection film that is used for protecting final preparation and has separation salt fog steam, can choose polyethylene material from type membrane, polypropylene material from type membrane, polyvinyl chloride material from type membrane, polyethylene glycol terephthalate material from type membrane, exhaust formula from type membrane, the compound type membrane of primer from among the type membrane.
Preferably, the thickness of the aluminum oxide layer 2 is 1-10 μm, the rigidity of the protective film with the excessively thick aluminum oxide layer is increased, the flexibility is reduced, and the salt mist and water vapor blocking effect is poor when the protective film is excessively thin.
Preferably, the thickness of the scratch-resistant self-repairing layer 5 is 2 μm to 20 μm, the rigidity of the protective film is increased when the thickness of the scratch-resistant self-repairing layer is too thick, the flexibility is reduced, and the protective effect of scratch resistance on the surface of a product is not good when the protective film is too thin.
Preferably, the thickness of the pressure-sensitive adhesive layer 3 is 10 μm to 100 μm.
Preferably, the thickness of the release film layer 4 is 1 μm to 5 μm.
The preparation method of the TPU protective film capable of blocking salt mist and water vapor in the embodiment comprises the following steps:
(1) mixing a UV (ultraviolet) auxiliary agent into TPU (thermoplastic polyurethane), and then extruding the TPU added with the UV auxiliary agent and EVOH (ethylene vinyl alcohol) to form a film in a casting manner in a co-extrusion mode to form a substrate layer 1;
(2) coating Al2O3Coating on the lower surface of the TPU film, Al2O3Controlling the thickness to be 1-10 microns to form an aluminum oxide layer 2;
(3) coating the pressure-sensitive adhesive on Al by a coating mode2O3The thickness of the pressure-sensitive adhesive on the lower surface of the layer 3 is controlled to be 10 micrometers to 100 micrometers, so that a pressure-sensitive adhesive layer 3 is formed;
(4) covering a release film on the lower surface of the pressure-sensitive adhesive, wherein the thickness of the release film is 1-5 micrometers, and forming a release film layer 4;
(5) and coating the anti-scratch self-repairing layer 5 on the upper surface of the TPU film in a coating mode, wherein the thickness of the anti-scratch self-repairing layer 5 is controlled to be 2-20 micrometers, and thus the anti-scratch self-repairing layer 5 is formed.
The TPU protective film with the salt mist water vapor barrier function provided by the embodiment has the advantages of simple structure, low processing cost and simple preparation method, and has good UV resistance and salt mist water vapor barrier performance through the co-extrusion of the aliphatic TPU with the UV resistant auxiliary agent and the EVOH (ethylene-vinyl alcohol copolymer); by coating with Al2O3Layer 3, which has a double salt mist and water vapor barrier function; by coating the scratch-resistant self-repairing layer 5, the original finish paint can be well protected, and scratches can be self-repaired.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes still fall within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. The TPU protective film capable of blocking salt mist and water vapor is characterized by sequentially comprising an aluminum oxide layer, a base material layer and an anti-scratching self-repairing layer from bottom to top;
wherein the base material layer is a TPU film and an ethylene-vinyl alcohol copolymer co-extrusion layer.
2. The TPU protective film with salt fog and water vapor barrier function of claim 1, further comprising a pressure sensitive adhesive layer disposed on the lower surface of the substrate layer.
3. The TPU protective film with the barrier against salt fog and water vapor as claimed in claim 2, further comprising a release film layer disposed on the lower surface of the pressure-sensitive adhesive film.
4. The TPU protective film with the salt spray water vapor barrier function of claim 1 or 3, wherein the thickness of the aluminum oxide layer is 1-10 μm.
5. The TPU protective film with the salt fog and water vapor barrier function of claim 1 or 3, wherein the thickness of the scratch-resistant self-repairing layer is 2 to 20 μm.
6. The TPU protective film with the salt fog and water vapor barrier function of claim 2, wherein the thickness of the pressure sensitive adhesive layer is 10 to 100 μm.
7. The TPU protective film with the salt fog and water vapor barrier function of claim 3, wherein the thickness of the release film layer is 1-5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020363147.8U CN212770543U (en) | 2020-03-20 | 2020-03-20 | TPU protection film with separation salt fog steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020363147.8U CN212770543U (en) | 2020-03-20 | 2020-03-20 | TPU protection film with separation salt fog steam |
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| Publication Number | Publication Date |
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| CN212770543U true CN212770543U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020363147.8U Active CN212770543U (en) | 2020-03-20 | 2020-03-20 | TPU protection film with separation salt fog steam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715953A (en) * | 2023-08-10 | 2023-09-08 | 中裕软管科技股份有限公司 | Antistatic self-repairing polyurethane material suitable for marine environment and preparation method and application thereof |
-
2020
- 2020-03-20 CN CN202020363147.8U patent/CN212770543U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116715953A (en) * | 2023-08-10 | 2023-09-08 | 中裕软管科技股份有限公司 | Antistatic self-repairing polyurethane material suitable for marine environment and preparation method and application thereof |
| CN116715953B (en) * | 2023-08-10 | 2023-10-24 | 中裕软管科技股份有限公司 | Antistatic self-repairing polyurethane material suitable for marine environment and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211116 Address after: Room 4075, building B, 555 Dongchuan Road, Minhang District, Shanghai 200241 Patentee after: Shanghai zitu New Material Technology Co., Ltd Address before: No. 88, Dongfang Road, Binhai Industrial Park, Qidong City, Nantong City, Jiangsu Province Patentee before: Jiangsu TuYan New Material Technology Co., Ltd |
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| TR01 | Transfer of patent right |