CN206157087U - Multilayer double -sided tape - Google Patents
Multilayer double -sided tape Download PDFInfo
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- CN206157087U CN206157087U CN201621207994.5U CN201621207994U CN206157087U CN 206157087 U CN206157087 U CN 206157087U CN 201621207994 U CN201621207994 U CN 201621207994U CN 206157087 U CN206157087 U CN 206157087U
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- sensitive adhesive
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Abstract
An object of the utility model is to provide a multilayer double -sided tape, a serial communication port, including release film layer, a pressure sensitive adhesive layer, the 2nd pressure sensitive adhesive layer, substrate layer, the 3rd pressure sensitive adhesive layer, the fourth pressure sensitive adhesive layer who laminates in proper order, a pressure sensitive adhesive layer's initial peel strength is less than the 2nd pressure sensitive adhesive layer's initial peel strength, fourth pressure sensitive adhesive layer's initial peel strength is less than the 3rd pressure sensitive adhesive layer's initial peel strength. The utility model has the advantages of the adhesion strength is high, doing over again nature is good, waterproof dustproof.
Description
【Technical field】
The utility model is related to technical field of macromolecules, more particularly to a kind of adhesive waterproof tape.
【Background technology】
With electronics, the fast development of communications industry, various adhesive tapes start to be applied to such industry.With mobile phone, TV, electricity
The electronic product multifunction such as brain, navigator or notebook, lighting and highly integrated, need to be combined multiple parts,
And because adhesive tape can effectively combine this base part and make outward appearance clean and tidy, therefore be widely used.Especially miniature electric
Equipment is that multiple parts are integrated with phone housing, and now, from the beginning of the occlusion portion of shell, its internal structure becomes very multiple
It is miscellaneous, and be configured between the various parts of enclosure and shell and can form gap, accordingly, it would be desirable to fill its clearance portion
Point, allow it to resist external environment condition, thus, it is desirable to configure the component of sealing and shock absorbing, now, adhesive tape is had
Effect is utilized.
At present the bonding of mobile phone framework mainly adopt PET multilayer two-sided tapes, foam multilayer two-sided tape, VHB adhesive tapes with
And the technique such as dispensing, have that adhesion strength is low, doing over again property when boning using PET multilayer two-sided tapes, foam multilayer two-sided tape
The shortcomings of difference；Although adhesion strength is big but die cuttability is poor and the later stage cannot do over again when being bondd using VHB adhesive tapes, while VHB adhesive tapes
Expensive utilization rate is low；Although gluing process can be prevented effectively from low adhesion strength, doing over again property difference shortcoming but be unable to reach
The purpose of water proof and dust proof.
【Utility model content】
The purpose of this utility model is to provide a kind of multilayer two-sided tape, and adhesion strength is high, doing over again property is good and with preventing
The dust-proof advantage of water.
The technical solution of the utility model is：
A kind of multilayer two-sided tape, it is characterised in that including the release film layer fitted successively, the first pressure-sensitive adhesive layer, second
Pressure-sensitive adhesive layer, substrate layer, the 3rd pressure-sensitive adhesive layer, the 4th pressure-sensitive adhesive layer, the initial bonding strength of first pressure-sensitive adhesive layer is less than
The initial bonding strength of the second pressure-sensitive adhesive layer, the initial bonding strength of the 4th pressure-sensitive adhesive layer is first less than the 3rd pressure-sensitive adhesive layer
Beginning peel strength.
Above-mentioned release film layer is two-sided film release liners, is easy to batching from the back side for adhesive tape, cost-effective, processing technology letter
It is single, due to using two-sided film, without the need for carrying out humidification process to material in coating process, to prevent its dehydration shrinkage.
The ratio of the two sides off-type force of above-mentioned two-sided film release liners is 1:1-1:3, the anti-stripping of glue-line is prevented, it is simple to operate.
Above-mentioned first pressure-sensitive adhesive layer includes thermally expanded microballoon and is distributed in the pressure-sensitive of thermally expanded microballoon surrounding
Glue, thermally expanded microballoon (being called foam microspheres), be a kind of shell be by being inside high molecular polymer (acrylonitrile copolymer)
Hydrocarbon, is being heated in the case of (100-150 DEG C), and shell softens, and hydrocarbon is gasified by liquid, so that shell is swollen
Swollen increase, removes the high molecular polymer for changing shell.Thermally expanded microballoon refer to by heating make expandable microspheres (be called foaming it is micro-
Ball) hollow particle of expansion process is completed, therefore will not expand after heating, while also certain cushioning effect.
Above-mentioned 4th pressure-sensitive adhesive layer includes thermally expanded microballoon and is distributed in the pressure-sensitive of thermally expanded microballoon surrounding
Glue, thermally expanded microballoon refers to and make expandable microspheres (being called foam microspheres) complete the hollow particle of expansion process by heating, because
This will not expand after heating, while also certain cushioning effect.
The addition of above-mentioned thermally expanded microballoon is the 3-50% for being pressure sensitive adhesive solid content in this layer of pressure-sensitive adhesive layer, this
Addition can both meet shock-absorbing capacity, can also ensure the adhesive property of adhesive.
The particle diameter of above-mentioned thermally expanded microballoon is 5-50 μm, is easy to the filling of adhesive, and can reach the effect of buffering
Really.
The thickness of above-mentioned first pressure-sensitive adhesive layer is 10-50 μm, and the thickness of the second pressure-sensitive adhesive layer is 30-100 μm, in this interval
Thickness ensure the adhesive performance in adhesive tape later stage, and can easily control the cost.
The thickness of above-mentioned 4th pressure-sensitive adhesive layer is 10-50 μm, and the thickness of the 3rd pressure-sensitive adhesive layer is 30-100 μm, in this interval
Thickness ensure the adhesive performance in adhesive tape later stage, and can easily control the cost.
The thickness of above-mentioned substrate layer is 10-50 μm, it is ensured that the operability of product and followability.
The pressure sensitive adhesive of above-mentioned first pressure-sensitive adhesive layer and the 4th pressure-sensitive adhesive layer is cross-linking type natural rubber pressure sensitive glue；Described
The pressure sensitive adhesive of two pressure-sensitive adhesive layers and the 3rd pressure-sensitive adhesive layer is natural rubber pressure sensitive glue, one kind of synthetic rubber pressure sensitive adhesive.
The utility model has following beneficial technique effect：The utility model adopts sandwich construction, different by controlling
The initial bonding strength of pressure-sensitive adhesive layer, it is possible to achieve determine in the relatively low convenience of the laminating pressure-sensitive adhesive layer peel strength of initial stage first and the 4th
Position is done over again, after heated or pressure second and the 3rd adhesive layer glue infiltrate into first and the 4th pressure-sensitive adhesive layer respectively, make glue
The dramatic raising of peel strength of band, reaches fixed effect；The thermally expanded microballoon that the utility model addition has expanded is obtained
Low adhesion glue-line first and the 4th pressure-sensitive adhesive layer, facilitate positioning product timely adhesive tape gluing initial stage peel strength is relatively low
Do over again, peel strength lifting is larger after heated or pressing is processed, and reaches the effect being permanently fixed；The utility model is using appropriate
Material as each Rotating fields, cohesive strength is high after adhesive tape, peel strength Datong District when temperature tolerance also greatly improve, with fabulous
Die cuttability, it is to avoid during cross cutting the problems such as excessive glue, wire drawing, and the requirement of water proof and dust proof can be reached；The utility model can lead to
Cross the technique of lamination coating to realize, process is simple, production efficiency is high, good in economic efficiency.
【Description of the drawings】
Fig. 1 is the structural representation of embodiment one
Description of symbols：1, off-style paper layer；201, the first pressure-sensitive adhesive layer；202, the second pressure-sensitive adhesive layer；3, substrate layer；401, the
Four pressure-sensitive adhesive layers；402, the 3rd pressure-sensitive adhesive layer；5, thermally expanded microballoon.
【Specific embodiment】
Below in conjunction with specific embodiment, the utility model is described further.
Embodiment provided below and being not used to limits the scope that the utility model is covered, and described step is not yet
It is to limit its execution sequence.Those skilled in the art do to the utility model with reference to existing common knowledge and obviously change
Enter, also fall within the protection domain of the utility model requirement.
Embodiment one
A kind of multilayer two-sided tape, as shown in figure 1, including the release film layer 1 fitted successively, the first pressure-sensitive adhesive layer 201,
At the beginning of two pressure-sensitive adhesive layers 202, substrate layer 3, the 3rd pressure-sensitive adhesive layer 402, the 4th pressure-sensitive adhesive layer 401, first pressure-sensitive adhesive layer 201
Beginning peel strength is less than the initial bonding strength of the second pressure-sensitive adhesive layer 202, the initial bonding strength of the 4th pressure-sensitive adhesive layer 401
Less than the initial bonding strength of the 3rd pressure-sensitive adhesive layer 402.
Release film layer 1 is 1 for the ratio of two sides off-type force:2 two-sided film release liners.
The thickness of substrate layer 3 is 20 μm, uses PET film.
First pressure-sensitive adhesive layer 201 is 20 μm, the thermally expanded microballoon 5 of 3% addition and is distributed in including particle diameter
The pressure sensitive adhesive of the surrounding of microballoon 5 of thermal expansion, the pressure sensitive adhesive is cross-linking type natural rubber pressure sensitive glue.4th pressure-sensitive adhesive layer 401 includes
Particle diameter is 20 μm, 20 additions thermally expanded microballoon 5 and be distributed in the pressure-sensitive of the thermally expanded surrounding of microballoon 5
Glue.First pressure-sensitive adhesive layer 201, the second pressure-sensitive adhesive layer 202, the 4th pressure-sensitive adhesive layer 401, the 3rd pressure-sensitive adhesive layer 402 thickness successively
For 25 μm, 30 μm, 25 μm, 30 μm.It is natural that the pressure sensitive adhesive of the first pressure-sensitive adhesive layer 201 and the 4th pressure-sensitive adhesive layer 401 is cross-linking type
Rubber pressure sensitive glue；The pressure sensitive adhesive of the second pressure-sensitive adhesive layer 202 and the 3rd pressure-sensitive adhesive layer 402 is synthetic rubber pressure sensitive adhesive.
The adhesive tape initial stage peel strength≤200g/25mm of the present embodiment, peel strength is relatively low, conveniently does over again for positioning,
The great lifting of peel strength after heated or placement, higher than 1500g/25mm, to reach the effect of stable fixation, and adds heat
Product after the microballoon of expansion has certain damping and waterproof efficacy.
Embodiment two
A kind of multilayer two-sided tape, including the release film layer 1 fitted successively, the first pressure-sensitive adhesive layer 201, the second pressure-sensitive adhesive layer
202nd, substrate layer 3, the 3rd pressure-sensitive adhesive layer 402, the 4th pressure-sensitive adhesive layer 401, the initial bonding strength of first pressure-sensitive adhesive layer 201
Less than the initial bonding strength of the second pressure-sensitive adhesive layer 202, the initial bonding strength of the 4th pressure-sensitive adhesive layer 401 is less than the 3rd pressure
The initial bonding strength of quick glue-line 402.
Release film layer 1 is 1 for the ratio of two sides off-type force:1 two-sided film release liners.
The thickness of substrate layer 3 is 10 μm, uses PVC film.
First pressure-sensitive adhesive layer 201 is 10 μm, the thermally expanded microballoon 5 of 50% addition and is distributed in including particle diameter
The pressure sensitive adhesive of the surrounding of microballoon 5 of thermal expansion, the pressure sensitive adhesive is cross-linking type natural rubber pressure sensitive glue.4th pressure-sensitive adhesive layer 401 includes
Particle diameter is the thermally expanded microballoon 5 of 10 μm, 50 additions and the pressure sensitive adhesive for being distributed in the thermally expanded surrounding of microballoon 5.
First pressure-sensitive adhesive layer 201, the second pressure-sensitive adhesive layer 202, the 4th pressure-sensitive adhesive layer 401, the thickness ratio of the 3rd pressure-sensitive adhesive layer 402 are followed successively by
50μm、100μm、50μm、100μm.The pressure sensitive adhesive of the first pressure-sensitive adhesive layer 201 and the 4th pressure-sensitive adhesive layer 401 is esters of acrylic acid
Pressure sensitive adhesive；The pressure sensitive adhesive of the second pressure-sensitive adhesive layer 202 and the 3rd pressure-sensitive adhesive layer 402 is natural rubber pressure sensitive glue.
The adhesive tape initial stage peel strength≤200g/25mm of the present embodiment, peel strength is relatively low, conveniently does over again for positioning,
The great lifting of peel strength after heated or placement, higher than 1500g/25mm, to reach the effect of stable fixation, and adds heat
Product after the microballoon of expansion has certain damping and waterproof efficacy.
Embodiment three
A kind of multilayer two-sided tape, as shown in figure 1, including the release film layer 1 fitted successively, the first pressure-sensitive adhesive layer 201,
At the beginning of two pressure-sensitive adhesive layers 202, substrate layer 3, the 3rd pressure-sensitive adhesive layer 402, the 4th pressure-sensitive adhesive layer 401, first pressure-sensitive adhesive layer 201
Beginning peel strength is less than the initial bonding strength of the second pressure-sensitive adhesive layer 202, the initial bonding strength of the 4th pressure-sensitive adhesive layer 401
Less than the initial bonding strength of the 3rd pressure-sensitive adhesive layer 402.
Release film layer 1 is 1 for the ratio of two sides off-type force:3 two-sided film release liners.
The thickness of substrate layer 3 is 50 μm, uses PI films.
First pressure-sensitive adhesive layer 201 is 30 μm, the thermally expanded microballoon 5 of 15% addition and is distributed in including particle diameter
The pressure sensitive adhesive of the surrounding of microballoon 5 of thermal expansion, the pressure sensitive adhesive is cross-linking type natural rubber pressure sensitive glue.4th pressure-sensitive adhesive layer 401 includes
Particle diameter is the thermally expanded microballoon 5 of 30 μm, 15 additions and the pressure sensitive adhesive for being distributed in the thermally expanded surrounding of microballoon 5.
First pressure-sensitive adhesive layer 201, the second pressure-sensitive adhesive layer 202, the 4th pressure-sensitive adhesive layer 401, the thickness ratio of the 3rd pressure-sensitive adhesive layer 402 are followed successively by
15μm、50μm、15μm、50μm.It is pressure-sensitive that the pressure sensitive adhesive of the first pressure-sensitive adhesive layer 201 and the 4th pressure-sensitive adhesive layer 401 is polyurethanes
Glue；The pressure sensitive adhesive of the second pressure-sensitive adhesive layer 202 and the 3rd pressure-sensitive adhesive layer 402 is butadiene-styrene rubber pressure sensitive adhesive.
The adhesive tape initial stage peel strength≤200g/25mm of the present embodiment, peel strength is relatively low, conveniently does over again for positioning,
The great lifting of peel strength after heated or placement, higher than 1500g/25mm, to reach the effect of stable fixation, and adds heat
Product after the microballoon of expansion has certain damping and waterproof efficacy.
Example IV
A kind of multilayer two-sided tape, as shown in figure 1, including the release film layer 1 fitted successively, the first pressure-sensitive adhesive layer 201,
At the beginning of two pressure-sensitive adhesive layers 202, substrate layer 3, the 3rd pressure-sensitive adhesive layer 402, the 4th pressure-sensitive adhesive layer 401, first pressure-sensitive adhesive layer 201
Beginning peel strength is less than the initial bonding strength of the second pressure-sensitive adhesive layer 202, the initial bonding strength of the 4th pressure-sensitive adhesive layer 401
Less than the initial bonding strength of the 3rd pressure-sensitive adhesive layer 402.
Release film layer 1 is 1 for the ratio of two sides off-type force:2.5 two-sided film release liners.
The thickness of substrate layer 3 is 30 μm, uses TPU film.
First pressure-sensitive adhesive layer 201 is 50 μm, the thermally expanded microballoon 5 of 20% addition and is distributed in including particle diameter
The pressure sensitive adhesive of the surrounding of microballoon 5 of thermal expansion, the pressure sensitive adhesive is cross-linking type natural rubber pressure sensitive glue.4th pressure-sensitive adhesive layer 401 includes
Particle diameter is that the foaming of 15 μm, 20 additions microballoon 5 and has been distributed in the pressure sensitive adhesive of the thermally expanded surrounding of microballoon 5.First
Pressure-sensitive adhesive layer 201, the second pressure-sensitive adhesive layer 202, the 4th pressure-sensitive adhesive layer 401, the thickness ratio of the 3rd pressure-sensitive adhesive layer 402 are followed successively by 10 μ
m、30μm、10μm、30μm.The pressure sensitive adhesive of the first pressure-sensitive adhesive layer 201 and the 4th pressure-sensitive adhesive layer 401 is cross-linking type natural rubber pressure
Quick glue；The pressure sensitive adhesive of the second pressure-sensitive adhesive layer 202 and the 3rd pressure-sensitive adhesive layer 402 is pressure-sensitive acrylate.
The adhesive tape initial stage peel strength≤200g/25mm of the present embodiment, peel strength is relatively low, conveniently does over again for positioning,
The great lifting of peel strength after heated or placement, higher than 1500g/25mm, to reach the effect of stable fixation, and adds heat
Product after the microballoon of expansion has certain damping and waterproof efficacy.
Claims (10)
1. a kind of multilayer two-sided tape, it is characterised in that including release film layer (1), the first pressure-sensitive adhesive layer fitted successively
(201), the second pressure-sensitive adhesive layer (202), substrate layer (3), the 3rd pressure-sensitive adhesive layer (402), the 4th pressure-sensitive adhesive layer (401), described
The initial bonding strength of one pressure-sensitive adhesive layer (201) is less than the initial bonding strength of the second pressure-sensitive adhesive layer (202), and the described 4th is pressure-sensitive
Initial bonding strength of the initial bonding strength of glue-line (401) less than the 3rd pressure-sensitive adhesive layer (402).
2. multilayer two-sided tape according to claim 1, it is characterised in that the release film layer (1) for two-sided film from
Type paper.
3. multilayer two-sided tape according to claim 2, it is characterised in that the two sides of the two-sided film release liners is release
The ratio of power is 1:1-1:3.
4. multilayer two-sided tape according to claim 1, it is characterised in that first pressure-sensitive adhesive layer (201) is including
The microballoon (5) of thermal expansion and it is distributed in the pressure sensitive adhesive of thermally expanded microballoon (5) surrounding.
5. multilayer two-sided tape according to claim 1, it is characterised in that the 4th pressure-sensitive adhesive layer (401) is including
The microballoon (5) of thermal expansion and it is distributed in the pressure sensitive adhesive of thermally expanded microballoon (5) surrounding.
6. the multilayer two-sided tape according to claim 4 or 5, it is characterised in that the grain of the thermally expanded microballoon (5)
Footpath is 5-50 μm.
7. the multilayer two-sided tape according to claim 4 or 5, it is characterised in that the addition of the thermally expanded microballoon (5)
Measure as the 3-50% of this layer of pressure sensitive adhesive solid content.
8. multilayer two-sided tape according to claim 1, it is characterised in that the thickness of first pressure-sensitive adhesive layer (201)
For 10-50 μm, the thickness of the second pressure-sensitive adhesive layer (202) is 30-100 μm.
9. multilayer two-sided tape according to claim 1, it is characterised in that the thickness of the 4th pressure-sensitive adhesive layer (401)
For 10-50 μm, the thickness of the 3rd pressure-sensitive adhesive layer (402) is 30-100 μm.
10. multilayer two-sided tape according to claim 1, it is characterised in that the thickness of the substrate layer (3) is 10-50 μ
m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207994.5U CN206157087U (en) | 2016-11-09 | 2016-11-09 | Multilayer double -sided tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207994.5U CN206157087U (en) | 2016-11-09 | 2016-11-09 | Multilayer double -sided tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206157087U true CN206157087U (en) | 2017-05-10 |
Family
ID=58657781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207994.5U Active CN206157087U (en) | 2016-11-09 | 2016-11-09 | Multilayer double -sided tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206157087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114940870A (en) * | 2022-06-15 | 2022-08-26 | 苏州环明电子科技有限公司 | Self-adhesive fixing adhesive tape for light guide plate and preparation method thereof |
| EP4245462A1 (en) * | 2022-03-14 | 2023-09-20 | 3M Innovative Properties Company | Grinding wheel, assemblies and processes for assembling a grinding wheel |
-
2016
- 2016-11-09 CN CN201621207994.5U patent/CN206157087U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4245462A1 (en) * | 2022-03-14 | 2023-09-20 | 3M Innovative Properties Company | Grinding wheel, assemblies and processes for assembling a grinding wheel |
| WO2023175455A1 (en) * | 2022-03-14 | 2023-09-21 | 3M Innovative Properties Company | Grinding wheel, assemblies and processes for assembling a grinding wheel |
| CN114940870A (en) * | 2022-06-15 | 2022-08-26 | 苏州环明电子科技有限公司 | Self-adhesive fixing adhesive tape for light guide plate and preparation method thereof |
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