CN213680507U - Double-layer PU closed-cell foam waterproof adhesive tape - Google Patents
Double-layer PU closed-cell foam waterproof adhesive tape Download PDFInfo
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- CN213680507U CN213680507U CN202021908222.0U CN202021908222U CN213680507U CN 213680507 U CN213680507 U CN 213680507U CN 202021908222 U CN202021908222 U CN 202021908222U CN 213680507 U CN213680507 U CN 213680507U
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Abstract
The utility model discloses a cotton waterproof tape of double-deck PU obturator bubble, including substrate layer, the cotton layer of first PU obturator bubble, first installation glue film, the cotton layer of first PU obturator bubble is located one side of substrate layer, and the cotton layer of first PU obturator bubble sets up between substrate layer and first installation glue film, still includes the cotton layer of second PU obturator bubble, and the cotton layer of second PU obturator bubble is located the opposite side of substrate layer. The double-layer PU closed-cell foam waterproof adhesive tape is reasonable in structure and has a good buffering and damping effect.
Description
Technical Field
The utility model relates to a waterproof adhesive tape especially relates to a cotton waterproof adhesive tape of double-deck PU obturator bubble.
Background
In the applications of sealing of 3C electronic products and photoelectric products, buffering and joint filling of electronic products and the like, products such as PE and EVA foam base materials, acrylic foam and the like have the functions of buffering, shock absorption and double-sided adhesive bonding at present.
The adhesive comprises a release film protective layer, a modified acrylic adhesive layer, a PET bottom lining film layer and a PU foam layer as described in CN 209428449U; and the foam adhesive tape is sequentially provided with a release film protective layer, a modified acrylic acid adhesive layer, a PET bottom lining film layer, a PU foam layer, a modified acrylic acid adhesive layer and a release film protective layer from top to bottom.
Foretell bubble cotton sticky tape, because only the cotton layer of one deck PU bubble, its buffering shock attenuation effect is comparatively general.
Therefore, there is a need for an improved foam waterproof tape in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a cotton waterproof sticky tape of double-deck PU obturator bubble, have good buffering shock attenuation effect.
In order to realize the technical effects, the utility model adopts the technical scheme that: the utility model provides a cotton waterproof tape of double-deck PU obturator bubble, includes the cotton layer of substrate layer, first PU obturator bubble, first installation glue film, first PU obturator bubble set up in the substrate layer with between the first installation glue film, the cotton layer of first PU obturator bubble is located one side of substrate layer, its characterized in that still includes the cotton layer of second PU obturator bubble, the cotton layer of second PU obturator bubble is located the opposite side of substrate layer.
The preferable technical scheme is that the packaging structure further comprises a second mounting adhesive layer, and the second PU closed-cell foam layer is arranged between the substrate layer and the second mounting adhesive layer.
The preferable technical scheme is that the first PU closed-cell foam layer, the substrate layer and the second PU closed-cell foam layer are connected in a laminated manner.
The preferable technical scheme is that the base material layer is a PET layer.
The preferred technical scheme is that the first mounting adhesive layer is a first pressure-sensitive adhesive layer or a first hot-pressing adhesive layer.
The preferable technical scheme is that the second mounting adhesive layer is a second pressure-sensitive adhesive layer or a second hot-pressing adhesive layer.
The preferred technical scheme does, the thickness of first installation glue film is 10 ~ 100um, the thickness on the cotton layer of first PU obturator bubble is 50 ~ 300um, the thickness of substrate layer is 4 ~ 50um, the thickness on the cotton layer of second PU obturator bubble is 50 ~ 300um, the thickness of second installation glue film is 10 ~ 100 um.
The utility model has the advantages and the beneficial effects that: the utility model discloses cotton waterproof sticky tape of double-deck PU obturator bubble is through designing the cotton layer of double-deck PU obturator bubble to reach good shock attenuation buffering effect, can promote mechanical properties simultaneously by a wide margin, have excellent tensile tear strength.
Drawings
FIG. 1 is a schematic structural view of example 1 of a double-layer PU closed-cell foam waterproof tape of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the double-layer PU closed-cell foam waterproof tape
In the figure: 1. a PET layer; 2. a first PU closed-cell foam layer; 3. a first hot-pressing glue layer; 4. a second PU closed-cell foam layer; 5. a second hot-pressing glue layer; 6. and a release layer.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Substrate layer
The substrate layer is the PET layer, and the cotton waterproof tape of bubble has set up the PET layer, can improve its stability.
PU closed-cell foam layer
The PU closed-cell foam is prepared by coating a polyurethane material and a closed-cell foam body, and has waterproof property and excellent buffering and damping functions.
The first mounting adhesive layer and the second mounting adhesive layer
The first mounting adhesive layer and the second mounting adhesive layer can be both pressure-sensitive adhesive and hot-pressing adhesive, and one layer of the first mounting adhesive layer and the other layer of the second mounting adhesive layer can be both pressure-sensitive adhesive and hot-pressing adhesive. The first mounting adhesive layer and the second mounting adhesive layer are used for being bonded with the surface of a product.
The surfaces of the first installation adhesive layer and the second installation adhesive layer are also provided with release layers in a bonding mode, and the release layers are used for protecting the installation adhesive layers before production, transportation and use.
Example 1
As shown in fig. 1, the double-layer PU closed-cell foam waterproof tape of embodiment 1 includes a release layer 6, a first thermal pressure adhesive layer 3, a first PU closed-cell foam layer 2, a PET layer 1, and a second PU closed-cell foam layer 4, which are sequentially stacked from outside to inside.
The thickness of leaving type layer 6 is 50um, and the thickness of first hot-pressing adhesive layer 3 is 25um, and the thickness of first PU obturator bubble cotton layer 2 and second PU obturator bubble cotton layer 4 is 150um, and the thickness on PET layer 1 is 12 um.
The double-layer PU closed-cell foam waterproof adhesive tape in the embodiment 1 can be used as a buffering single-sided material, only one side is needed for bonding, the overall thickness is reduced, and the application range is wider; meanwhile, the double-sided PU closed-cell foam layer effectively improves the buffering and damping effects.
Example 2
As shown in fig. 2, the embodiment 2 is based on the embodiment 1, and is different in that a second thermal compression adhesive layer 5 is further included, the second thermal compression adhesive layer 5 is coated on the other side of the second PU closed cell foam layer 4, and a release layer 6 is further bonded to the surface of the second thermal compression adhesive layer 5.
The thickness of the second thermal compression glue layer 5 is 25 um.
The double-layer PU closed-cell foam waterproof adhesive tape of the embodiment 2 is additionally provided with the second hot-pressing adhesive layer 5, can be bonded on two sides, and is suitable for mounting a display patch and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a cotton waterproof tape of double-deck PU obturator bubble, includes the cotton layer of substrate layer, first PU obturator bubble, first installation glue film, the cotton layer of first PU obturator bubble is located one side of substrate layer, the cotton layer of first PU obturator bubble set up in the substrate layer with between the first installation glue film, its characterized in that still includes the cotton layer of second PU obturator bubble, the cotton layer of second PU obturator bubble is located the opposite side of substrate layer.
2. The double-layer PU closed-cell foam waterproof tape according to claim 1, further comprising a second mounting adhesive layer, wherein the second PU closed-cell foam layer is disposed between the substrate layer and the second mounting adhesive layer.
3. The double-layer PU closed-cell foam waterproof tape according to claim 1, wherein the first PU closed-cell foam layer, the substrate layer and the second PU closed-cell foam layer are connected in a laminated manner.
4. The double-layer PU closed-cell foam waterproof tape according to claim 1, wherein the substrate layer is a PET layer.
5. The double-layer PU closed-cell foam waterproof tape according to claim 1, wherein the first mounting adhesive layer is a first pressure sensitive adhesive layer or a first hot-press adhesive layer.
6. The double-layer PU closed-cell foam waterproof tape according to claim 2, wherein the second mounting adhesive layer is a second pressure sensitive adhesive layer or a second hot-pressing adhesive layer.
7. The double-layer PU closed-cell foam waterproof tape according to claim 2, wherein the thickness of the first mounting adhesive layer is 10-100 um, the thickness of the first PU closed-cell foam layer is 50-300 um, the thickness of the substrate layer is 4-50 um, the thickness of the second PU closed-cell foam layer is 50-300 um, and the thickness of the second mounting adhesive layer is 10-100 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908222.0U CN213680507U (en) | 2020-09-04 | 2020-09-04 | Double-layer PU closed-cell foam waterproof adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021908222.0U CN213680507U (en) | 2020-09-04 | 2020-09-04 | Double-layer PU closed-cell foam waterproof adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213680507U true CN213680507U (en) | 2021-07-13 |
Family
ID=76746242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021908222.0U Active CN213680507U (en) | 2020-09-04 | 2020-09-04 | Double-layer PU closed-cell foam waterproof adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213680507U (en) |
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2020
- 2020-09-04 CN CN202021908222.0U patent/CN213680507U/en active Active
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