CN106811143B - Structural adhesive paper - Google Patents
Structural adhesive paper Download PDFInfo
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- CN106811143B CN106811143B CN201510860913.5A CN201510860913A CN106811143B CN 106811143 B CN106811143 B CN 106811143B CN 201510860913 A CN201510860913 A CN 201510860913A CN 106811143 B CN106811143 B CN 106811143B
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- structural adhesive
- adhesive paper
- layer
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- base material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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Abstract
The invention provides a structural adhesive paper which is used for being stuck on an object to be stuck. The dyne value of the outer surface of the structural adhesive paper opposite to the adhered object is 20 dyn/cm-28 dyn/cm. The structural adhesive paper comprises: an adhesive agent layer for adhering to an object to be adhered; and a base material, one surface of which is adhered to the adhesive layer, and the other surface of which is itself an outer surface of the structural adhesive paper opposite to the adhered object, or the other surface of which is subjected to surface treatment and the surface treated is an outer surface of the structural adhesive paper opposite to the adhered object. The structural adhesive paper can eliminate the bulge of the active material layer at the edge of the structural adhesive paper. The structural adhesive paper can improve the utilization rate of active substances, avoid the waste of the active substances, and improve the energy density, the quick charge and quick discharge and the heat dissipation performance of the battery.
Description
Technical Field
The invention relates to the field of adhesive paper, in particular to structural adhesive paper.
Background
At present, before the pole piece coating of lithium ion battery, the position of utmost point ear needs to be reserved on the mass flow body, guarantees that the welding position of utmost point ear is the empty paper tinsel district of the active substance layer of uncoated of the mass flow body. In the prior art, adhesive paper with a conventional structure is added at the position of the tab before coating, the adhesive surface of the adhesive paper is corresponding to an empty foil area, and the adhesive paper is removed after the coating operation is finished, so that the position of the tab can be reserved. In the coating process, an active substance layer covers the empty foil area and the adhesive tape, then two temperature areas are set in a drying channel in the drying process, wherein the former temperature area is an active substance layer drying temperature area, the latter temperature area is an adhesive tape heating and stripping temperature area, and the purpose of reserving the empty foil area on the active substance layer is achieved through drying of the active substance layer and heating, curling and stripping of the adhesive tape.
However, the use of conventional structural adhesive papers has the following problems: referring to fig. 13, since the application of the active material layer 3 ' is a quantitative application, the structural adhesive sheet 1 occupies a part of the space of the active material layer 3, resulting in a protrusion of the active material layer 3 ' formed at the edge of the structural adhesive sheet 1 ' with a certain height difference. After the structural adhesive paper 1 is heated, curled and peeled, the protrusion at the edge of the peeling edge can not be eliminated, and when the subsequent rolling process is carried out, the current collector 2' at the protrusion can be subjected to an excessively high shearing force to cause the foil to become brittle and even to break, so that the process can not be normally carried out. In addition, the thickness of the active material layer 3 ' at the edge where the conventional structure adhesive paper 1 ' is peeled off is larger than that of the active material layer 3 ' in the normal region, resulting in a more likely occurrence of tape breakage at the subsequent rolling process.
Disclosure of Invention
In view of the problems in the background art, an object of the present invention is to provide a structural adhesive paper that can eliminate the protrusion of an active material layer at the edge of the structural adhesive paper.
Another objective of the present invention is to provide a structural adhesive paper, which can improve the utilization rate of active materials, avoid the waste of active materials, and improve the energy density, fast charge and fast discharge, and heat dissipation performance of the battery.
In order to achieve the above object, in one aspect of the present invention, there is provided a structural adhesive paper for attaching to an object to be bonded. The dyne value of the outer surface of the structural adhesive paper opposite to the adhered object is 20 dyn/cm-28 dyn/cm. The structural adhesive paper comprises: an adhesive agent layer for adhering to an object to be adhered; and a base material, one surface of which is adhered to the adhesive layer, and the other surface of which is itself an outer surface of the structural adhesive paper opposite to the adhered object, or the other surface of which is subjected to surface treatment and the surface treated is an outer surface of the structural adhesive paper opposite to the adhered object.
Compared with the prior art, the invention has the beneficial effects that:
the surface of the structural adhesive paper opposite to the adhered object has a lower dyne value, so that the surface energy is lower, the bulge of the active material layer at the edge of the structural adhesive paper can be eliminated, and the problem of edge bulge at the position of the tab of the active material layer is solved.
The structural adhesive paper can improve the utilization rate of active substances, avoid the waste of the active substances, and improve the energy density, the quick charge and quick discharge and the heat dissipation performance of the battery.
The structural adhesive paper can meet the requirement of batch production of batteries, and improves the productivity and the quality rate of the batteries.
Drawings
Fig. 1 is a perspective view of an adherend current collector to which the structural adhesive paper according to the present invention is applied;
fig. 2 is a perspective view of the structural adhesive paper according to the present invention adhered to a current collector to be adhered;
FIG. 3 is a perspective view of a structural adhesive paper coated with an active material layer according to the present invention;
FIG. 4 is a perspective view of the structural adhesive paper according to the present invention after peeling;
fig. 5 is a perspective view of another embodiment of the structural adhesive paper according to the present invention adhered to an adherend current collector;
fig. 6 is a perspective view of still another embodiment of the structural adhesive paper according to the present invention adhered to an adherend current collector;
FIG. 7 is a perspective view of one embodiment of a substrate for a structural adhesive paper in accordance with the present invention;
FIG. 8 is a perspective view of another embodiment of a substrate for a structural adhesive paper according to the present invention;
FIG. 9 is a perspective view of yet another embodiment of a substrate for a structural adhesive paper according to the present invention;
FIG. 10 is a perspective view of yet another embodiment of a substrate for a structural adhesive paper according to the present invention;
FIG. 11 is a cross-sectional view taken along line A-A of the structural adhesive paper of FIG. 3;
FIG. 12 is an enlarged view of the circled portion of FIG. 11;
fig. 13 is a cross-sectional view of a prior art structural adhesive paper coated with an active material layer applied to a current collector.
Wherein the reference numerals are as follows:
1, 1' structure adhesive paper
11 adhesive layer
12 base material
121 sublayer
122 sublayer
2, 2' bonded object
21 reserved area
3, 3' active substance layer
S、Si、St、Si1、Si2、St1、St2Surface of
W width direction
L longitudinal direction
T thickness direction
Detailed Description
The structural adhesive paper according to the present invention is described in detail below.
Referring to fig. 1 to 4, the structural adhesive sheet 1 of the present invention is used for attachment to an object 2 to be bonded. The dyne value of the outer surface S of the structural adhesive paper 1 opposite to the object 2 to be bonded is 20dyn/cm to 28 dyn/cm. Referring to fig. 5 to 6, the structural adhesive paper 1 includes: an adhesive layer 11 for adhering to the adhered object 2; and a substrate 12. One surface of the base material 12 is stuck on the adhesive layer 11, and the other surface S of the base material 12 is itselfi(i.e., the surface of the base material 12 opposite to the one surface adhered to the adhesive layer 11) as the outer surface S of the structural adhesive paper 1 opposite to the adhered object 2, or the other surface of the base material 12 (i.e., the surface of the base material 12 opposite to the one surface adhered to the adhesive layer 11) is subjected to surface treatment and the surface S subjected to surface treatmenttAs the outer surface S of the structural adhesive sheet 1 opposite to the adhered object 2. Wherein FIG. 5 shows the other surface of the base substrate 12 itself SiFIG. 6 shows the surface S of the base material 12 after surface treatmentt. Surface SiAnd a surface StCan be used as the outer surface S of the structural adhesive sheet 1 opposite to the adhered object 2. The dyne value of the outer surface S of the structural adhesive paper 1 opposite to the bonded object 2 can be obtained by a dyne pen test.
In the structural adhesive paper 1 of the present invention, referring to fig. 1 to 4, the bonded object 2 may be a current collector. Before the slurry of the active material layer 3 is coated on the current collector, the structural adhesive paper 1 is adhered to the reserved area 21 of the current collector for forming the tab, and after the slurry is coated on the current collector, the slurry is dried. And after drying, stripping the structural adhesive paper 1 to form a reserved area 21 of the tab.
In the structural adhesive sheet 1 of the present invention, referring to fig. 11 to 12, when the slurry of the active material layer 3 is applied to the outer surfaces of the object 2 to be bonded and the structural adhesive sheet 1, since the dyne value of the outer surface S of the structural adhesive paper 1 opposite to the adhered object 2 is low, the binding force of the slurry at the edge of the structural adhesive paper 1 by the structural adhesive paper 1 is small, therefore, the slurry at the edge of the structural adhesive paper 1 is gradually contracted toward the nearby adherend 2 side (toward the adherend 2 in the width direction W in fig. 7) by the surface tension of the slurry, simultaneously, the drying process of thick liquids also is going on in step, and when the solvent residual volume in the thick liquids reached a definite value, thick liquids no longer migrated, and at this moment, the protruding migration through thick liquids of 1 edges of structure adhesive tape has been eliminated, and the thick liquids forms active substance layer 3 after drying, and the arch can not appear in active substance layer 3. When the structural adhesive paper 1 is heated, curled and peeled, no protrusion appears at the peeling edge, so that the problem of edge protrusion at the pole ear position of the active material layer 3 is solved, and the phenomenon of belt breakage in the subsequent rolling process is avoided; meanwhile, the utilization rate of the active substances is improved, the waste of the active substances is avoided, and the energy density, the quick charging and discharging and the heat dissipation performance of the battery are further improved.
When the active material slurry is used for a lithium ion battery, the viscosity of the active material slurry for the lithium ion battery is generally 1000mpa.s to 30000 mpa.s. For the high viscosity active substance slurry (such as 30000mpa.s > viscosity >8000mpa.s), when the dyne value of the outer surface S of the structural adhesive paper 1 exceeds the upper limit, the edge bulge of the structural adhesive paper 1 can not be completely eliminated under a specific condition (time control) due to the poor fluidity of the high viscosity active substance slurry; when the cause value of the outer surface S of the structural adhesive paper 1 is lower than the lower limit, the interaction force between the sizing agent and the outer surface S of the structural adhesive paper 1 is too low, which easily causes the complete migration of the sizing agent on the outer surface S of the structural adhesive paper 1, and conversely, causes the edge protrusion to be aggravated. Preferably, the dyne value range of the outer surface S of the structural adhesive paper 1 satisfies 20dyn/cm to 24 dyn/cm. For low viscosity actives slurries (e.g., 8000mpa.s > viscosity >1000mpa.s), when the dyne value is below the lower limit, due to the good flowability of the low viscosity actives slurry, under certain conditions, excessive slurry migration is likely to occur, which leads to increased edge lifting, and even when the dyne value exceeds the upper limit, edge lifting cannot be completely eliminated. Preferably, the dyne value range of the outer surface S of the structural adhesive paper 1 satisfies 24dyn/cm to 28 dyn/cm.
A first type of structural adhesive paper 1 according to the invention is described below. Referring to fig. 5, the structural adhesive paper 1 may include an adhesive layer 11 and a base material 12. The adhesive layer 11 is used for attaching to the adherend 2. One surface of the base material 12 is stuck on the adhesive layer 11, and the other surface S of the base material 12 is itselfiAs the outer surface S of the structural adhesive sheet 1 opposite to the adhered object 2, and the other surface S of the base material 12iThe dyne value of (A) is 20dyn/cm to 28 dyn/cm. In the first type of structural adhesive paper, the base substrate 12 having a low surface energy is directly used to control the outer surface S of the structural adhesive paper 1 (i.e., the other surface S of the base substrate 12 itself S)i) The dyne value of the angle is 20 dyn/cm-28 dyn/cm, thereby achieving the purpose of eliminating the edge bulge. In one embodiment of the first type of structural adhesive paper, referring to FIG. 7, the base substrate 12 may have a single layer structure, with the surface S of the base substrate 12 having a single layer structurei1As the other surface S of the base material 12iIn this case, the substrate 12 may be a polyfluoroolefin.
In another embodiment of the first type of structural adhesive paper, referring to fig. 8, the base substrate 12 may have N sub-layers, N being equal to or greater than 2. One surface of the sub-layer 121 of the base material 12 close to the adhesive layer 11 (not shown) is adhered to the adhesive layer 11, and the outer surface S of the sub-layer 122 of the base material 12 far from the adhesive layer 11 and at the outermost side of the base material 12i2As the other surface S of the substrate 12iAnd the material of the sub-layer 122 of the substrate 12, which is far away from the adhesive layer 11 and is located at the outermost side of the substrate 12, may be polyfluoroolefin. The base material 12 may have a multi-layer structure as long as the material of the sub-layer 122 of the base material 12, which is far from the adhesive layer 11 and is located at the outermost side of the base material 12, is ensured to be polyfluoroolefin, and the material of the remaining sub-layers is not limited. Referring to fig. 8, the base substrate 12 has a two-layer structure as long as the material of the sub-layer 122 is polyfluoroolefin, and the material of the sub-layer 121 is not limited. Preferably, the material of the sublayer 121 may be polyethylene terephthalateAlcohol esters (PET), Polyimides (PI) or Polyamideimides (PAI).
The dyne value of the surface of the polyfluoroolefin can be 20 dyn/cm-28 dyn/cm. Preferably, the polyfluoroolefins have a symmetrical structure. The polyfluoroolefin may be polytetrafluoroethylene or polyvinylidene fluoride. The fluorocarbon bonds in the polytetrafluoroethylene or polyvinylidene fluoride are symmetrical so that polar bond interactions cancel each other out. Meanwhile, the fluorine atom has strong electronegativity and strong electron capturing capability, so that the dispersion force is small due to the fact that a positive center and a negative center are not overlapped due to the instant movement of electrons, and therefore the surface tension is small and the surface energy is low. When the outer surface of the base material 12 using the polyfluoroolefin is in contact with the active material slurry, the acting force between the outer surface of the base material 12 and atoms or molecules of the active material slurry is small, the friction coefficient is low, and the purpose of eliminating the edge bulge is easily achieved.
In the first type of structural adhesive paper, the material of the adhesive layer 11 may be an acrylic resin or polyurethane.
In the first type of structural adhesive paper, the binder layer 11 may contain a foaming agent. When the structural adhesive paper 1 is heated, the foaming agent foams to enable the structural adhesive paper 1 to curl towards the middle part from two opposite side edges in the width direction W, so that the curling direction of the structural adhesive paper 1 is effectively controlled; and the middle part of the structural adhesive paper 1 is adhered to the adhered object 2 without peeling, so that the effective adhesion area can be ensured, and the structural adhesive paper 1 is prevented from falling off from the adhered object 2 in the heating process. The blowing agent may be an Azodicarbonamide (AC) blowing agent or a 4, 4-oxybis-benesulfonylhydrazide (OBSH) blowing agent. The particle diameter of the blowing agent may be less than 30 μm. When the foaming agent is contained in the adhesive layer 11, it is required that the thickness of the adhesive layer 11 may be larger than the particle diameter of the foaming agent and smaller than 70 μm. The thickness of the base material 12 is not limited, and may preferably be less than 30 μm.
In the first type of structural adhesive paper, the base material 12 may be rectangular to facilitate subsequent tab welding.
The second type of structural adhesive paper 1 according to the invention is explained next. Referring to fig. 6, the structural adhesive paper 1 may include an adhesive layer 11 and a base material 12. The adhesive layer 11 is used for being stuck on a quiltKnot object 2. One surface of the base material 12 is stuck on the adhesive layer 11, the other surface of the base material 12 is surface-treated and the surface S after the surface treatmenttThe surface S of the base material 12, which is the outer surface S of the structural adhesive paper 1 opposite to the object 2 to be bondedtThe dyne value of (A) is 20dyn/cm to 28 dyn/cm.
In the second type of structural adhesive paper, the surface treatment area of the other surface of the base substrate 12 is at least the entire peripheral portion of the other surface of the base substrate 12 to reduce the surface energy of the peripheral portion of the base substrate 12 for the purpose of eliminating the edge protrusion later. Preferably, the surface treatment area to the other surface of the base substrate 12 is the entire area of the other surface of the base substrate 12.
In the second type of structural adhesive paper, the surface-treated surface S of the base material 12 can be obtained by coating the other surface of the base material 12 with silicone oilt. The molecule chain segment of the organic silicone oil is soft and smooth, the intermolecular force is small, and the silicon-oxygen bond is easy to rotate. The oxygen atoms on the molecular chain skeleton are combined with the outer surface of the structural adhesive paper through intermolecular force, so that methyl groups and other groups in the organic silicon oil with low surface energy are regularly arranged on the outer surface of the structural adhesive paper in an oriented manner, the methyl groups and other groups in the organic silicon oil have low electron attractiveness, a low surface energy interface is formed, the orientation stability of the organic silicon oil can be kept within the temperature range of minus 40-250 ℃, and the stable isolation effect is achieved.
In the second type of structural adhesive paper, the silicone oil can be selected from one or more of polydimethylsiloxane, cyclomethicone, aminosiloxane and polymethylphenylsiloxane. The coating thickness of the silicone oil may be 0.2 μm to 1 μm. The silicone oil is applied to at least the entire peripheral portion of the other surface of the base substrate 12 to reduce the surface energy of the base substrate 12 for subsequent removal of edge bead.
In the second type of structural adhesive paper, the surface-treated surface S of the base material 12 may also be obtained by subjecting the other surface of the base material 12 to a fluorination treatmentt. Watch after fluorination treatmentThe surface can be grafted with fluorine groups or fluorocarbon groups of non-polar functional groups to achieve the purpose of reducing the surface energy. The fluorination treatment is applied to at least the entire periphery of the other surface of the substrate 12 to reduce the surface energy of the substrate 12 for subsequent removal of edge bead. Specifically, the surface-treated surface can be obtained by subjecting the other surface of the substrate to a fluorination treatment using a plasma gas containing fluorine. The fluorine-containing plasma gas may be CF4Of plasma gas or CF4And CH4The mixed plasma gas of (1).
In one embodiment of the second type of structural adhesive paper, referring to FIG. 9, the base substrate 12 may have a single-layer structure, and the other surface S of the base substrate 12 has a single-layer structuret1Surface-treated surface S of the base material 12 is obtained by surface treatmentt. By applying a single layer structure to the other surface S of the base material 12t1Surface-treated surface S of base material 12 obtained by coating with silicone oil or by fluorinationtAnd thus the material of the base material 12 itself is not limited. Preferably, the substrate 12 may be polyethylene terephthalate (PET), Polyimide (PI), or Polyamideimide (PAI). The base substrate 12 may also be a heat shrinkable material.
In another embodiment of the second type of structural adhesive paper, referring to fig. 10, the base substrate 12 may also have an N-layer structure, where N is 2 or greater. One surface of the sub-layer 121 of the base material 12 close to the adhesive layer 11 (not shown) is adhered to the adhesive layer 11, and the outer surface S of the sub-layer 122 of the base material 12 far from the adhesive layer 11 and at the outermost side of the base material 12t2Surface-treated surface S of base material 12 obtained by surface treatmentt. Due to the fact that the outer surface S of the sub-layer 122 which is far away from the adhesive layer 11 and is positioned at the outermost side of the base material 12 passes through the base material 12t2Surface-treated surface S of base material 12 obtained by coating with silicone oil or by fluorinationtAnd thus the material of the sub-layer 122 of the substrate 12 that is distal from the adhesive layer 11 and that is at the outermost side of the substrate 12 is not limited. Preferably, the material of the sub-layer 122 of the substrate 12, which is far away from the adhesive layer 11 and is located at the outermost side of the substrate 12, may be polyethylene terephthalate (PET), poly (ethylene terephthalate)Imide (PI) or Polyamideimide (PAI). The material of the sub-layer 122 of the base substrate 12 remote from the adhesive layer 11 and at the outermost side of the base substrate 12 may also be a heat shrinkable material. The material of the remaining part-layer 121 is also not limited, and may preferably be polyethylene terephthalate (PET), Polyimide (PI), or Polyamideimide (PAI).
In the case where the base material 12 includes a heat-shrinkable material, when the structural adhesive paper 1 is heated, the heat-shrinkable material shrinks to curl the structural adhesive paper 1 from opposite side edges in the width direction W toward the middle portion, effectively controlling the curling direction of the structural adhesive paper 1; and the middle part of the structural adhesive paper 1 is adhered to the adhered object 2 without peeling, so that the effective adhesion area can be ensured, and the structural adhesive paper 1 is prevented from falling off from the adhered object 2 in the heating process. The heat-shrinkable material may be a polyvinyl chloride (PVC) heat-shrinkable film, a low molecular weight polyethylene terephthalate (PET) heat-shrinkable film, or a biaxially oriented Polyolefin (POF) heat-shrinkable film. Where the substrate 12 comprises a heat shrinkable material, the thickness of the substrate 12 may be less than 45 μm. The thickness of the adhesive layer 11 is not limited, and may preferably be less than 10 μm.
In the second type of structural adhesive paper, the material of the adhesive layer 11 may be an acrylic resin or polyurethane.
In the second type of structural adhesive paper, a foaming agent may be contained in the adhesive layer 11. The particle diameter of the blowing agent may be less than 30 μm. When the foaming agent is contained in the adhesive layer 11, it is required that the thickness of the adhesive layer 11 may be larger than the particle diameter of the foaming agent and smaller than 70 μm. The thickness of the base material 12 is not limited, and may preferably be less than 30 μm.
In a second type of structural adhesive paper, the base substrate 12 may be rectangular to facilitate subsequent tab welding.
Claims (10)
1. A structural adhesive paper for adhering to an object to be adhered,
the dyne value of the outer surface of the structural adhesive paper opposite to the adhered object is 20 dyn/cm-28 dyn/cm;
the structural adhesive paper comprises:
an adhesive agent layer for adhering to an object to be adhered; and
a base material, one surface of which is adhered to the adhesive layer, and the other surface of which is subjected to surface treatment and which is used as the outer surface of the structural adhesive paper opposite to the adhered object; and is
The surface treatment is surface fluorination treatment.
2. The structural adhesive paper according to claim 1, wherein the substrate has a single-layer structure.
3. The structural adhesive paper according to claim 1, wherein the substrate has N sublayers, N being 2 or more;
one surface of the sublayer of the base material close to the adhesive layer is adhered to the adhesive layer, the outer surface of the sublayer of the base material, which is far away from the adhesive layer and is positioned at the outermost side of the base material, serves as the other surface of the base material, the other surface of the base material is subjected to surface treatment, and the surface subjected to surface treatment serves as the outer surface of the structural adhesive paper opposite to an adhered object.
4. The structural adhesive paper of claim 2, wherein the substrate is a polyfluoroolefin.
5. The structural adhesive paper according to claim 3, wherein the material of the sub-layer of the substrate which is far away from the adhesive layer and is located at the outermost side of the substrate is polyfluoroolefin.
6. The structural adhesive paper according to claim 2, wherein the substrate is polyethylene terephthalate, polyimide or polyamideimide, or the substrate is a heat-shrinkable material.
7. The structural adhesive paper as claimed in claim 3, wherein the material of the sub-layer of the substrate, which is far away from the adhesive layer and is located at the outermost side of the substrate, is polyethylene terephthalate, polyimide or polyamide imide, or the material of the sub-layer of the substrate, which is far away from the adhesive layer and is located at the outermost side of the substrate, is a heat-shrinkable material.
8. The structural adhesive paper according to claim 6 or 7, wherein the heat-shrinkable material is a polyvinyl chloride heat-shrinkable film, a low molecular weight polyethylene terephthalate heat-shrinkable film, or a biaxially oriented polyolefin heat-shrinkable film.
9. The structural adhesive paper according to claim 1, wherein the surface-treated region of the other surface of the base material is at least the entire peripheral portion of the other surface of the base material.
10. The structural adhesive paper according to claim 1, wherein the binder layer contains a foaming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510860913.5A CN106811143B (en) | 2015-12-01 | 2015-12-01 | Structural adhesive paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510860913.5A CN106811143B (en) | 2015-12-01 | 2015-12-01 | Structural adhesive paper |
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| CN106811143A CN106811143A (en) | 2017-06-09 |
| CN106811143B true CN106811143B (en) | 2020-07-10 |
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| CN201510860913.5A Active CN106811143B (en) | 2015-12-01 | 2015-12-01 | Structural adhesive paper |
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| CN112289980A (en) * | 2020-11-05 | 2021-01-29 | 珠海冠宇电池股份有限公司 | Pole piece and cleaning method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377619A (en) * | 1981-05-08 | 1983-03-22 | Bell Telephone Laboratories, Incorporated | Prevention of surface mass migration by means of a polymeric surface coating |
| CN1446371A (en) * | 2000-08-07 | 2003-10-01 | 3M创新有限公司 | Antisoiling hard coat |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013047321A (en) * | 2011-07-28 | 2013-03-07 | Nitto Denko Corp | Pressure-sensitive adhesive sheet |
| CN104073179B (en) * | 2013-03-29 | 2019-05-07 | 日东电工（上海松江）有限公司 | Adhesive tape for electrochemical device |
| CN103342969A (en) * | 2013-07-09 | 2013-10-09 | 苏州百骐电子材料有限公司 | Printed circuit board (PCB) shading tape and preparation method thereof |
| CN104861889B (en) * | 2015-06-02 | 2017-09-08 | 日东电工（上海松江）有限公司 | A kind of adhesive tape |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377619A (en) * | 1981-05-08 | 1983-03-22 | Bell Telephone Laboratories, Incorporated | Prevention of surface mass migration by means of a polymeric surface coating |
| CN1446371A (en) * | 2000-08-07 | 2003-10-01 | 3M创新有限公司 | Antisoiling hard coat |
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