CN212242515U - TPU protection film - Google Patents
TPU protection film Download PDFInfo
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- CN212242515U CN212242515U CN202020333179.3U CN202020333179U CN212242515U CN 212242515 U CN212242515 U CN 212242515U CN 202020333179 U CN202020333179 U CN 202020333179U CN 212242515 U CN212242515 U CN 212242515U
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Abstract
The utility model discloses a TPU protection film, from the bottom up includes in proper order: the first base material layer, the second base material layer and the third base material layer, first base material layer and third base material layer are TPU basic unit, the second base material layer is the gluing agent layer of UV solidification. The double-layer TPU protective film has excellent wear resistance and high-strength mechanical property; the second substrate layer is as gluing agent of bonding first third substrate layer, through UV curing technique, can improve the crosslinking curing speed to do not have whitening (shadow glue), environmental protection, low VOC discharge, be convenient for the construction.
Description
Technical Field
The utility model belongs to electron product protection film, high strength glass and panel substrate layer field especially relate to a TPU protection film.
Background
At present, with the continuous progress and development of electronic technology, the technology content of most of electronic products with screens is higher and higher, electronic products adopting liquid crystal screens are more and more, and people can basically stick a protective film on the screens in order to prevent the screens from being damaged, so that the screens are not easy to be damaged under the protection of the protective film. The existing protective film has various products, the quality of the existing protective film is mainly determined by the strength of the protective film, if the strength is too poor, the protective film is easy to damage, a screen is damaged when the strength is serious, the screen needs to be replaced, and the cost for replacing the screen is also high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a TPU protection film is the double-deck TPU protection film of UV solidification, can the quick cross-linking solidification to no whitening (shadow is glued), environmental protection, low VOC (volatile organic compounds) discharge, better elasticity, excellent mechanical properties, the double-deck TPU protection film of being convenient for construction.
In order to solve the above problem, the technical scheme of the utility model is that:
the TPU protective film comprises a first base material layer, a second base material layer and a third base material layer from bottom to top in sequence; the first base material layer and the third base material layer are TPU (thermoplastic polyurethane elastomer rubber) base layers, and the second base material layer is an UV-cured adhesive layer.
The utility model discloses a preferred embodiment, the thickness of first substrate layer is 0.05 ~ 2mm, and TPU thickness is too thin, and mechanical properties can not reach the requirement, if TPU thickness is too thick, light transmissivity variation, therefore the thickness of the TPU basic unit of first substrate layer is preferred at 0.05 ~ 2 mm's within range.
In the utility model discloses a preferred embodiment, the thickness of third substrate layer is 0.05 ~ 2 mm.
In a preferred embodiment of the present invention, the thickness of the UV-cured adhesive layer is 0.03-0.08 mm, the thickness of the UV-cured adhesive layer is too thin, the adhesiveness is not good, and the mechanical properties of the whole TPU protective film are also affected; if the thickness of the adhesive layer is too thick, the curing speed is slow, the preparation time process influences the efficiency, and therefore the thickness of the UV-cured adhesive layer is preferably 0.03-0.08 mm.
In a preferred embodiment of the present invention, the thickness of the first substrate layer and the thickness of the third substrate layer are equal.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
the TPU elastomer has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, weather resistance and the like which are incomparable with other plastic materials, and simultaneously has a plurality of excellent functions of high waterproofness, moisture permeability, wind resistance, cold resistance and the like. The utility model compounds the TPU film layer in double layers, further improving the overall performance; through the UV curing technology, the cross-linking curing speed of the adhesive can be improved, and the UV curing adhesive is simple in structure, free of whitening (shadow glue), environment-friendly, low in VOC (volatile organic compounds) emission and convenient to construct.
Drawings
Fig. 1 is a schematic structural diagram of the TPU protective layer of the present invention.
Description of reference numerals: 1-a first substrate layer; 2-a second substrate layer; 3-a third substrate layer.
Detailed Description
The TPU protective layer of the present invention will be described in further detail with reference to the accompanying drawings and specific examples. 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 sequentially comprises a first substrate layer 1, a second substrate layer 2 and a third substrate layer 3 from bottom to top; the first substrate layer 1 and the third substrate layer 3 are TPU base layers, and the second substrate layer 2 is an adhesive layer cured by UV.
In a preferred embodiment, the thickness of the first substrate layer 1 is 0.05-2 mm, the first substrate layer 1 is a TPU base layer, the TPU thickness is too thin, the mechanical property does not meet the requirement, and if the TPU thickness is too thick, the light transmittance is poor, so the thickness of the TPU base layer of the first substrate layer 1 is preferably in the range of 0.05-2 mm, and the thickness of the third substrate layer 3 is the same.
In a preferred embodiment, the thickness of the third substrate layer 3 is 0.05-2 mm.
In a preferred embodiment, the thickness of the UV-cured adhesive layer is 0.03-0.08 mm, the thickness of the UV-cured adhesive layer is too thin, the adhesiveness is poor, and the mechanical property of the whole TPU protective film is also affected; if the thickness of the adhesive layer is too thick, the curing speed is slow, the preparation time process influences the efficiency, and therefore the thickness of the UV-cured adhesive layer is preferably 0.03-0.08 mm.
In a preferred embodiment, the thickness of the first substrate layer 1 and the thickness of the third substrate layer 3 are equal.
The TPU elastomer has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, weather resistance and the like which are incomparable with other plastic materials, and simultaneously has a plurality of excellent functions of high waterproofness, moisture permeability, wind resistance, cold resistance and the like. In the embodiment, the TPU film layer is compounded in a double-layer manner, so that the overall performance is further improved, the strength of the protective film is particularly enhanced, and the protective film is particularly suitable for a high-strength glass interlayer; in addition, the present embodiment adopts common UV adhesives in the market, such as urethane acrylate, bisphenol a epoxy acrylate, novolac epoxy acrylate, unsaturated polyester, and other types of prepolymers, and the UV adhesives have high curing speed, high light transmittance, environmental protection, and no solvent volatilization, and through the UV curing technology, the crosslinking curing speed of the adhesives can be improved, and the structure is simple, no whitening (shadow glue), environmental protection, low VOC emission, and convenient for construction.
The preparation method of the TPU protective film provided in this example is as follows:
(1) extruding and casting the TPU into a film in an extrusion mode to form a first base material layer 1;
(2) coating the adhesive which is not cured by UV on the surface of the TPU film through coating;
(3) compounding two layers of TPU films coated with adhesive which is not cured by UV through wet compounding;
(4) the double-layer TPU film after being compounded is irradiated by ultraviolet rays, so that the adhesive is rapidly UV-cured to form a second base material layer 2 and a third base material layer 3.
The TPU protective film provided by the embodiment is prepared by adopting common materials in the market and a simple preparation method, and finally obtains the UV-cured double-layer TPU protective film which is particularly suitable for being applied to a high-strength glass interlayer.
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 (5)
1. The TPU protective film is characterized by comprising a first base material layer, a second base material layer and a third base material layer from bottom to top in sequence; the first base material layer and the third base material layer are TPU base layers, and the second base material layer is an adhesive layer cured by UV.
2. The TPU protective film of claim 1, wherein the first substrate layer has a thickness of 0.05 to 2 mm.
3. The TPU protective film of claim 1, wherein the thickness of the third substrate layer is 0.05 to 2 mm.
4. The TPU protective film of claim 1, wherein the thickness of the UV cured adhesive layer is 0.03 to 0.08 mm.
5. The TPU protective film of claim 1 wherein the thickness of the first substrate layer and the thickness of the third substrate layer are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333179.3U CN212242515U (en) | 2020-03-17 | 2020-03-17 | TPU protection film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333179.3U CN212242515U (en) | 2020-03-17 | 2020-03-17 | TPU protection film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212242515U true CN212242515U (en) | 2020-12-29 |
Family
ID=73991900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020333179.3U Active CN212242515U (en) | 2020-03-17 | 2020-03-17 | TPU protection film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212242515U (en) |
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2020
- 2020-03-17 CN CN202020333179.3U patent/CN212242515U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211115 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 |