CN106833414A - A kind of super-thin electronic foam tape and its production method - Google Patents
A kind of super-thin electronic foam tape and its production method Download PDFInfo
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- CN106833414A CN106833414A CN201611259267.8A CN201611259267A CN106833414A CN 106833414 A CN106833414 A CN 106833414A CN 201611259267 A CN201611259267 A CN 201611259267A CN 106833414 A CN106833414 A CN 106833414A
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
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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
- C09J7/22—Plastics; Metallised plastics
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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
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
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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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
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- 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
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
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- C09J2433/00—Presence of (meth)acrylic polymer
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Adhesive Tapes (AREA)
Abstract
A kind of super-thin electronic foam tape, including the continuous base material of bubble, foam tape is followed successively by the continuous base material of pressure-sensitive adhesive layer, corona processing layer, bubble, corona processing layer, pressure-sensitive adhesive layer, double silicon release liners from top to bottom, the continuous thickness of bubble is 100 ± 10um, it is continuous first-selected as base material using high density foaming bubble, because its high density make the continuous elasticity of bubble more preferably, deflection more preferably, even if not increasing thickness also can reach good filling and buffering effect, break through the conventional people cognition partially thick to traditional foam tape thickness.The addition that the present invention passes through sodium bicarbonate particle and toner mixture, can be effectively improved the radiating mode inside the continuous base material of bubble, its radiating effect be significantly improved, so as to provide a kind of new type superthin electronics foam tape for possessing good heat radiating function.
Description
Technical field
The present invention relates to a kind of foam tape, more particularly to a kind of super-thin electronic foam tape and its production method.
Background technology
Electronic product such as notebook computer, panel computer, smart mobile phone etc., lasting trend is all the more frivolous small in design
Skilful route, therefore interior fittings must also make relative adjustment, wherein an interior fittings foam tape also has sizable
Change.Foam tape is indispensable critical material, and its purposes is gap filling buffering, is required between any two hardware
Filling or padded coaming are set, it is to avoid because accident collision or fall and caused by electronic product damage, the continuous expansion density of tradition bubble is low,
Poor flexibility, partially softness, to reach good filling or buffering effect, the thickness for steeping silk floss is typically all thicker, with electronic product
Frivolous compact trend is obvious all the more, and we can break through tradition in selection, selects expansion density bubble high continuous to improve
Integral, flexible and deflection and then reduction steep continuous required thickness, but high density foaming is steeped silk floss and there is also obvious defect, is exactly surface
Excessively smooth to have with adhesive and well then easily cause coating degumming.
Meanwhile, existing adhesive tape is used primarily in electronic component, and electronic component is often in the working condition of high temperature,
When the heat dispersion of adhesive tape is not good, electronic component can be caused to be failed because local heating is too high, damaged, and in the prior art
Adhesive tape often only serve sealing and fixation, not only can not heat conduction well, also because its thermal insulation be more unfavorable for radiating；
Therefore, existing adhesive tape how is improved, preferable heat dispersion is reached, is the technical barrier of this area urgent need to resolve.
The content of the invention
The invention technical problem to be solved
The present invention is intended to provide a kind of super-thin electronic foam tape and its production method.
Technical scheme
To realize above-mentioned technical purpose, the present invention uses the continuous base of following technical scheme, a kind of super-thin electronic foam tape, including bubble
Material, described foam tape is followed successively by pressure-sensitive adhesive layer, corona processing layer, the continuous base material of bubble, corona processing layer, pressure-sensitive from top to bottom
Adhesive layer, double silicon release liners, the bubble silk floss thickness is 100 ± 10um.
Preferably, described pressure-sensitive adhesive layer is mixed type acrylic pressure sensitive gluing layer.
Preferably, described bubble silk floss base material is continuous using high density foaming PE bubbles.
A kind of production method of super-thin electronic foam tape, comprises the following steps：
S1, selection, choose the continuous bubble silk floss base material as super-thin electronic foam tape of high density foaming PE bubbles, and base material thickness is 100
±10um ；
S2, mixed type acrylic pressure sensitive gluing agent is prepared, the parameter according to adhesive layer first chooses the macromolecule of respective component
Acrylate pressure sensitive adhesive, then the amount according to high molecular weight acrylic pressure sensitive adhesive choose rosin resin, rosin resin and macromolecule third
Ratio between olefin(e) acid pressure sensitive adhesive is 1-5g：100g, rosin resin is first dissolved before calling in acrylate pressure sensitive adhesive with toluene,
The ratio of rosin resin and toluene is 1：2, rosin resin is stirred until homogeneous after adding toluene, the rosin tree that will have been dissolved afterwards
Fat pours into acrylate pressure sensitive adhesive, and adhesive is then stirred the flowing to form scroll, and mixing time is 5-10min, is stirred
Temperature is mixed for 20-25 DEG C, then bridging agent is added in the adhesive prepared, bridging agent is first diluted with toluene, bridging agent
Ratio between toluene is 1：10, bridging agent is slowly poured into adhesive after dilution, and addition stirs 10-15min after finishing
It is uniform to adhesive；S3, sided corona treatment, it is first continuous to bubble with the two-sided corona machine of three-phase before laminating is coated to the continuous base material of bubble
Base material carries out two-sided sided corona treatment, makes its rough surface, and output voltage is 15kv, closes corona after the completion of sided corona treatment immediately
Machine；
S4, coating, after the completion of sided corona treatment, are coated with mixed type acrylic pressure sensitive gluing layer, during gluing on the continuous base material of bubble immediately
The mixed type acrylic pressure sensitive gluing agent that optional step S2 is prepared, the coating in the continuous face of base material first of bubble is to turn to apply, first by adhesive
It is coated in double silicon release liners, double silicon release liners carry out receipts of fitting with the continuous base material of bubble when after coater oven baking to coating tail
Volume, the coating in the face of base material second is to turn to apply, and first adhesive is coated in processing procedure release liners, to painting after coater oven is toasted
Processing procedure release liners carry out winding of fitting with the continuous base material of bubble during cloth tail, peel off processing procedure release liners after laminating and reclaim, coater oven
Maximum temperature is arranged on 100-110 DEG C；
S5, high-temperature baking, after coating is completed, high temperature roaster are immediately fed into before the also not complete solidification of glue-line by semi-finished product adhesive tape
Baking, oven temperature is set to 50-60 DEG C, gel bed permeability is improved the adhesive force continuous with bubble using high temperature.
Preferably, the corona machine used in the step S3 is the G304 two-sided corona machines of type three-phase.
Preferably, corona machine input voltage is 380 ± 38V of AC three-phases.
Further, the continuous base material of the bubble also includes following component：The mixture of sodium bicarbonate particle and carbon dust, and this is mixed
The particle diameter of compound is less than 0.1mm.
Further, when the super-thin electronic foam tape is just used, the hot blast blown out by hair-dryer is heated to
More than 50 DEG C, heating is stopped after continuing 30S.
Beneficial effect
The beneficial effects of the present invention are：
1）The purpose frivolous to realize adhesive tape, we are continuous first-selected as base material using high density foaming bubble, because its high density makes bubble continuous
Elasticity more preferably, deflection more preferably, even if not increasing thickness also can reach good filling and buffering effect, break through conventional people to tradition
The partially thick cognition of type foam tape thickness, and the problem of continuous tack is steeped in high density in order to overcome, we pass through equipment and work
Skill realizes that bubble silk floss belongs to non-polar material, and it is poor that it throws anchor rate, and the continuous flatness of high density bubble is relatively higher, improves bubble silk floss
The difficulty adhered to adhesive, our Selection utilization sided corona treatments increase the tack on the continuous surface of bubble, can in coated on one side
Do sided corona treatment, if but the second face be coated with when do sided corona treatment have electrical breakdown bubble silk floss cause the first face glue surface degumming or it is release not
Good problem, because bubble silk floss is foaming body, there is gap in itself, we select two-sided corona machine to overcome this problem in equipment
Point, disposably will bubble it is continuous it is two-sided do sided corona treatment, do the second face gluing immediately after the first face gluing, gluing immediately will after finishing
Semi-finished product are sent into 50 °C~60 °C time about 24hrs of high temperature roaster, are made using high temperature before the also not complete solidification of glue-line
Gel bed permeability improves the adhesive force continuous with bubble；
2）Foam tape is all in need between both hardwares any, thus designed collocation adhesive also it is required can with it is various
Material has good pasting.We focus on two emphasis-initial bonding strengths and follow-up confining force when such adhesive is designed, outstanding
It is first viscous can be pasted in various coarse or out-of-flatness surface, and outstanding follow-up confining force is more long in the time of pasting more can play height
Dynamics is sticked together to keep not tilting, but for acrylate pressure sensitive adhesive, both performances are cannot be while possess because being mutually to conflict
, therefore we devise mixed type acrylate pressure sensitive adhesive to reach effect：Rosin resin is added in polymeric pressure sensitive adhesive
Regulation colloid improves initial bonding strength.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure：1st, foam base material；2nd, corona processing layer；3rd, pressure-sensitive adhesive layer；4th, double silicon release liners.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection, or two connections of element internal, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Reference picture 1 describes a kind of super-thin electronic foam tape according to embodiments of the present invention, including the continuous base material 1 of bubble, described
Foam tape be followed successively by pressure-sensitive adhesive layer 3, corona processing layer 2, the continuous base material 1 of bubble, corona processing layer 2, pressure sensitive adhesive from top to bottom
Glutinous layer 3, double silicon release liners 4, continuous 1 thickness of bubble is 100 ± 10um.
Preferably, described pressure-sensitive adhesive layer 3 is mixed type acrylic pressure sensitive gluing layer.
Preferably, described bubble silk floss base material 1 is continuous using high density foaming PE bubbles.
A kind of production method of super-thin electronic foam tape, comprises the following steps：
S1, selection, choose the continuous bubble silk floss base material as super-thin electronic foam tape of high density foaming PE bubbles, and base material thickness is 100
±10um ；
S2, mixed type acrylic pressure sensitive gluing agent is prepared, the parameter according to adhesive layer first chooses the macromolecule of respective component
Acrylate pressure sensitive adhesive, then the amount according to high molecular weight acrylic pressure sensitive adhesive choose rosin resin, rosin resin and macromolecule third
Ratio between olefin(e) acid pressure sensitive adhesive is 1-5g：100g, rosin resin is first dissolved before calling in acrylate pressure sensitive adhesive with toluene,
The ratio of rosin resin and toluene is 1：2, rosin resin is stirred until homogeneous after adding toluene, the rosin tree that will have been dissolved afterwards
Fat pours into acrylate pressure sensitive adhesive, and adhesive is then stirred the flowing to form scroll, and mixing time is 5-10min, is stirred
Temperature is mixed for 20-25 DEG C, then bridging agent is added in the adhesive prepared, bridging agent is first diluted with toluene, bridging agent
Ratio between toluene is 1：10, bridging agent is slowly poured into adhesive after dilution, and addition stirs 10-15min after finishing
It is uniform to adhesive；
S3, sided corona treatment, before laminating is coated to the continuous base material of bubble, are first carried out double with the two-sided corona machine of three-phase to the continuous base material of bubble
Face sided corona treatment, makes its rough surface, and output voltage is 15kv, closes corona machine after the completion of sided corona treatment immediately；
S4, coating, after the completion of sided corona treatment, are coated with mixed type acrylic pressure sensitive gluing layer, during gluing on the continuous base material of bubble immediately
The mixed type acrylic pressure sensitive gluing agent that optional step S2 is prepared, the coating in the continuous face of base material first of bubble is to turn to apply, first by adhesive
It is coated in double silicon release liners, double silicon release liners carry out receipts of fitting with the continuous base material of bubble when after coater oven baking to coating tail
Volume, the coating in the face of base material second is to turn to apply, and first adhesive is coated in processing procedure release liners, to painting after coater oven is toasted
Processing procedure release liners carry out winding of fitting with the continuous base material of bubble during cloth tail, peel off processing procedure release liners after laminating and reclaim, coater oven
Maximum temperature is arranged on 100-110 DEG C；
S5, high-temperature baking, after coating is completed, high temperature roaster are immediately fed into before the also not complete solidification of glue-line by semi-finished product adhesive tape
Baking, oven temperature is set to 50-60 DEG C, gel bed permeability is improved the adhesive force continuous with bubble using high temperature.
Preferably, the corona machine used in the step S3 is the G304 two-sided corona machines of type three-phase.
Preferably, corona machine input voltage is 380 ± 38V of AC three-phases.
The beneficial effects of the present invention are：1）The purpose frivolous to realize adhesive tape, we using high density foaming bubble it is continuous as
Base material is first-selected, because its high density make the continuous elasticity of bubble more preferably, deflection more preferably, even if not increasing thickness also can reach good filling and slow
Effect is rushed, the conventional people cognition partially thick to traditional foam tape thickness is broken through, and in order to overcome in the continuous attachment of high density bubble
Property problem, we realize through equipment and technique, bubble silk floss belong to non-polar material, its throw anchor rate it is poor, and high density bubble silk floss
Flatness is relatively higher, improves the continuous difficulty with adhesive attachment of bubble, and our Selection utilization sided corona treatments increase the continuous surface of bubble
Tack, can do sided corona treatment in coated on one side, if but the second face sided corona treatment is done when being coated with to have electrical breakdown bubble continuous
The first face glue surface degumming or release bad problem are caused, because bubble silk floss is foaming body, itself has gap, and we select in equipment
Two-sided corona machine is selected to overcome this problem points, disposably will bubble it is continuous it is two-sided do sided corona treatment, do the immediately after the first face gluing
Semi-finished product are sent into 50 °C~60 °C time about 24hrs of high temperature roaster by two face gluings, gluing immediately after finishing, in glue-line
Gel bed permeability is set to improve the adhesive force continuous with bubble using high temperature before also not complete solidification；2）Foam tape is in both hardwares any
Between it is all in need, therefore the adhesive of designed collocation also must have good pasting with various materials.We are in design
Focus on two emphasis-initial bonding strengths and follow-up confining force during such adhesive, it is outstanding it is first viscous can be in various coarse or out-of-flatness table
Face is pasted, and outstanding follow-up confining force is more long in the time of pasting more can play height and sticks together dynamics and keeps not tilting, but for third
For olefin(e) acid pressure sensitive adhesive, both performances are cannot be while possess because being afoul, therefore we devise mixed type propylene
Sour pressure sensitive adhesive reaches effect：Rosin resin is added in polymeric pressure sensitive adhesive to adjust colloid raising initial bonding strength.
Meanwhile, in the present embodiment, the continuous base material of bubble also includes following component：The mixture of sodium bicarbonate particle and carbon dust, and
The particle diameter of the mixture is less than 0.1mm.When the super-thin electronic foam tape is just used, by hair-dryer blow out hot blast by its
More than 50 DEG C are heated to, heating is stopped after continuing 30S.Because solid sodium bicarbonate starts gradually to decompose generation two more than 50 DEG C
Carbonoxide, carbon dioxide is generated inside the continuous base material of bubble so that the continuous base material of bubble is internally formed porous small ventilating structure, favorably
In the heat convection of the continuous base material of bubble（Because above-mentioned ventilating structure is small, can't form larger to the watertightness performance of the continuous base material of bubble
Influence）；Meanwhile, while the continuous base material internal porous ventilating structure of bubble is formed, a part of carbon dust can automatically be packed into the continuous base of bubble
In hole inside material, toner passage is formed, so as to be internally formed the heat conduction via based on toner passage in the continuous base material of bubble,
Be conducive to steeping the heat transfer of continuous base material.By the addition of sodium bicarbonate particle above and toner mixture, bubble can be effectively improved
Radiating mode inside continuous base material, significantly improves its radiating effect, so as to provide a kind of possess the new super of good heat radiating function
Thin electronics foam tape.（This application case is China Patent No.：201510549936.4 further improvement）.
Claims (8)
1. a kind of super-thin electronic foam tape, including the continuous base material of bubble, it is characterised in that described foam tape is from top to bottom successively
It is pressure-sensitive adhesive layer, corona processing layer, the continuous base material of bubble, corona processing layer, pressure-sensitive adhesive layer, double silicon release liners, the bubble is continuous thick
It is 100 ± 10um to spend.
2. the super-thin electronic foam tape according to claim 1, it is characterised in that described pressure-sensitive adhesive layer is mixing
Type acrylic pressure sensitive gluing layer.
3. the super-thin electronic foam tape according to claim 1, it is characterised in that described bubble silk floss base material is using highly dense
Degree foaming PE bubbles are continuous.
4. the production method of the super-thin electronic foam tape according to claim 1 to 3 any one, it is characterised in that
Comprise the following steps：
S1, selection, choose the continuous bubble silk floss base material as super-thin electronic foam tape of high density foaming PE bubbles, and base material thickness is 100
±10um ；
S2, mixed type acrylic pressure sensitive gluing agent is prepared, the parameter according to adhesive layer first chooses the macromolecule of respective component
Acrylate pressure sensitive adhesive, then the amount according to high molecular weight acrylic pressure sensitive adhesive choose rosin resin, rosin resin and macromolecule third
Ratio between olefin(e) acid pressure sensitive adhesive is 1-5g：100g, rosin resin is first dissolved before calling in acrylate pressure sensitive adhesive with toluene,
The ratio of rosin resin and toluene is 1：2, rosin resin is stirred until homogeneous after adding toluene, the rosin tree that will have been dissolved afterwards
Fat pours into acrylate pressure sensitive adhesive, and adhesive is then stirred the flowing to form scroll, and mixing time is 5-10min, is stirred
Temperature is mixed for 20-25 DEG C, then bridging agent is added in the adhesive prepared, bridging agent is first diluted with toluene, bridging agent
Ratio between toluene is 1：10, bridging agent is slowly poured into adhesive after dilution, and addition stirs 10-15min after finishing
It is uniform to adhesive；
S3, sided corona treatment, before laminating is coated to the continuous base material of bubble, are first carried out double with the two-sided corona machine of three-phase to the continuous base material of bubble
Face sided corona treatment, makes its rough surface, and output voltage is 15kv, closes corona machine after the completion of sided corona treatment immediately；
S4, coating, after the completion of sided corona treatment, are coated with mixed type acrylic pressure sensitive gluing layer, during gluing on the continuous base material of bubble immediately
The mixed type acrylic pressure sensitive gluing agent that optional step S2 is prepared, the coating in the continuous face of base material first of bubble is to turn to apply, first by adhesive
It is coated in double silicon release liners, double silicon release liners carry out receipts of fitting with the continuous base material of bubble when after coater oven baking to coating tail
Volume, the coating in the face of base material second is to turn to apply, and first adhesive is coated in processing procedure release liners, to painting after coater oven is toasted
Processing procedure release liners carry out winding of fitting with the continuous base material of bubble during cloth tail, peel off processing procedure release liners after laminating and reclaim, coater oven
Maximum temperature is arranged on 100-110 DEG C；
S5, high-temperature baking, after coating is completed, high temperature roaster are immediately fed into before the also not complete solidification of glue-line by semi-finished product adhesive tape
Baking, oven temperature is set to 50-60 DEG C, gel bed permeability is improved the adhesive force continuous with bubble using high temperature.
5. the production method according to claim 4, it is characterised in that the corona machine used in the step S3 is G304
The two-sided corona machine of type three-phase.
6. the production method according to claim 5, it is characterised in that corona machine input voltage be AC three-phases 380 ±
38V。
7. the super-thin electronic foam tape according to claim 1, it is characterised in that the bubble silk floss base material also includes following
Composition：The mixture of sodium bicarbonate particle and carbon dust, and the particle diameter of the mixture is less than 0.1mm.
8. super-thin electronic foam tape according to claim 7, it is characterised in that：When the super-thin electronic foam tape just makes
Used time, the hot blast blown out by hair-dryer is heated to more than 50 DEG C, and heating is stopped after continuing 30S.
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| CN201611259267.8A CN106833414A (en) | 2016-12-30 | 2016-12-30 | A kind of super-thin electronic foam tape and its production method |
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| CN110964455A (en) * | 2019-12-30 | 2020-04-07 | 太仓金煜电子材料有限公司 | Production method of ultrathin foam composite film adhesive tape and adhesive tape |
| CN113889444A (en) * | 2021-09-13 | 2022-01-04 | 云南中宣液态金属科技有限公司 | Packaging structure and packaging method of circuit board containing liquid metal and circuit board |
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Application publication date: 20170613 |