CN109280501A - A kind of smart phone soaking pressure sensitive adhesive tape - Google Patents
A kind of smart phone soaking pressure sensitive adhesive tape Download PDFInfo
- Publication number
- CN109280501A CN109280501A CN201810962079.4A CN201810962079A CN109280501A CN 109280501 A CN109280501 A CN 109280501A CN 201810962079 A CN201810962079 A CN 201810962079A CN 109280501 A CN109280501 A CN 109280501A
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- China
- Prior art keywords
- pet film
- graphite
- parts
- adhesive tape
- smart phone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
-
- 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
- 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
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/005—Presence of polyester in the release coating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Carbon And Carbon Compounds (AREA)
- Adhesive Tapes (AREA)
Abstract
The present invention provides a kind of smart phone soaking pressure sensitive adhesive tapes, for a two-sided pad pasting of heat dissipation, and it fits between radiating piece and heat generating components, the two-sided pad pasting of the heat dissipation includes light strippable PET film and re-releases type PET film, this light strippable PET film and re-releases and is disposed with the first thermally conductive adhesive layer, graphite linings and the second thermally conductive adhesive layer between type PET film.The present invention avoids adhesive tape hot-spot, while realizing the uniformity of adhesive tape heating conduction, improves heat dissipation performance stability, the reliability of product, greatly reduces the cost of product.
Description
Technical field
The present invention relates to double faced adhesive chip technology fields, more particularly to a kind of smart phone soaking pressure sensitive adhesive tape.
Background technique
The trend of development of computer is to develop lighter and thinner product, for example, tablet computer and laptop are more next
It is more popular, because of their dexterous shapes.Due to becoming smaller in size for these products, heat dissipation is one considerable always
Aspect, high temperature can reduce the performance, reliability and service life of electronic equipment.Therefore, Current electronic industry is for as thermal control
The heat sink material of system core component proposes increasingly higher demands, and there is an urgent need to a kind of high-efficiency heat conduction, light material are rapid
It transfers heat away from, ensures that electronic equipment operates normally.Equal backing is that one kind is transmitted between heat source and secondary unit
The heat exchanger of heat, surface region and shape are more advantageous to heat dissipation compared with heat source.By equal backing, the heat generated by heat source
" diffusion " is able to eliminate the heat accumulation in heat source well in this way to secondary unit.
Kapton is mostly used for flexible circuit board in the prior art, is obtained although having using polyimide film sintered
Graphite heat radiation fin, to be covered on heat source, but be constrained to Kapton product quality and performances the good and the bad not
Together, influenced the performance of the two-sided pad pasting heat dissipation performance of heat dissipation, there are following technical problems: heat dissipation is uneven, adhesive tape easily occurs
Hot-spot, the heat dissipation performance for improving product is unstable, reliability performance is poor, is unfavorable for product quality management control, influences product
Competitiveness, how to overcome above-mentioned technical problem become those skilled in the art make great efforts direction.
Summary of the invention
It is an object of the present invention to provide a kind of soaking pressure sensitive adhesive tapes for smart phone, this is used for the equal hot pressing of smart phone
Sensitive tape improves heating conduction in the vertical direction and the horizontal direction, avoids adhesive tape hot-spot, realizes adhesive tape thermal conductivity
While the uniformity of energy, heat dissipation performance stability, the reliability of product are improved, the cost of product is greatly reduced.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of soaking pressure sensitive adhesive tape for smart phone,
The two-sided pad pasting of heat dissipation fits between radiating piece and heat generating components, and the two-sided pad pasting of heat dissipation includes light strippable PET film
With re-release type PET film, this light strippable PET film and re-release and be disposed with the first thermally conductive adhesive layer, stone between type PET film
Layer of ink and the second thermally conductive adhesive layer；The graphite linings are obtained by following process, this process the following steps are included:
Step 1: Kapton is risen to 250 DEG C from room temperature, room temperature is down to after 400 DEG C are risen to after heat preservation；
Step 2: the upper and lower surfaces in the Kapton Jing Guo step 1 are coated with one layer graphite modified dose and are handled
Kapton afterwards, graphite modified dose of the viscosity are 30000 ~ 48000CP；
The graphite modified dose of group by following parts by weight is grouped as: 25 parts of benzophenone tetracarboxylic dianhydride, pyromellitic acid anhydride
17 parts, 22 parts of diaminodiphenylmethane, 33 parts of dimethylformamide, 1.6 parts of ethylene glycol, 2.7 parts of dimethyl silicone polymer；
Step 3: by treated, Kapton is warming up to 800 DEG C, is being warming up to 1200 DEG C after heat preservation, cooling after heat preservation,
To obtain the carbonized film of pre-burned；
Step 4: rolling the carbonized film of the pre-burned of the step 4 using calender；
Step 5: being warming up to 2400 DEG C, 2900 DEG C are warming up to after heat preservation again, it is cooling after heat preservation, to obtain the graphite of main firing
Film；
Step 6: then the graphite film of the resulting main firing of step 5 carries out calendering to obtain the graphite linings.
Further improved scheme is as follows in above-mentioned technical proposal:
1, in above scheme, the step 4 is obtained into graphite film and carries out calendering process.
2, in above scheme, the grammes per square metre of the light strippable PET film stripping power is 5 ~ 10g/m 2, described to re-release type
The grammes per square metre of PET film peeling force is 50 ~ 100g/m 2.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art:
The present invention is used for the soaking pressure sensitive adhesive tape of smart phone, and graphite linings are coated with one layer of graphite by upper and lower surfaces in structure
The Kapton of modifying agent is prepared, and improves heating conduction in the vertical direction and the horizontal direction, avoids adhesive tape office
Portion's overheat, realizes the uniformity of adhesive tape heating conduction；Secondly, it is located at graphite modified dose of Kapton surface by two
Benzophenone tetracid dianhydride, pyromellitic acid anhydride, diaminodiphenylmethane, dimethylformamide, ethylene glycol, polydimethylsiloxanes
Alkane composition, is coated on Kapton, the pin hole being filled in heating process improves crystallinity simultaneously, also overcomes
Be heat-shrinked it is excessive caused by it is uneven, improve graphite linings biaxial tension performance；Again, Kapton surface has graphite
Modifying agent improves graphite linings and thermally conductive adhesive layer heating conduction in two-sided pad pasting, and rolls the pre-burned using calender
Carbonized film, avoid fold and be graphitized sintering process in volume contraction, improve compactness and crystallinity, further mention
High heating conduction in the vertical direction and the horizontal direction.
Detailed description of the invention
Fig. 1 is the soaking pressure sensitive adhesive tape structural schematic diagram that the present invention is used for smart phone；
Fig. 2 is the soaking pressure sensitive adhesive tape application schematic diagram that the present invention is used for smart phone；
Fig. 3 is the partial structural diagram of attached drawing 2.
In figure: 1, radiating piece；2, heat generating components；3, light strippable PET film；4, type PET film is re-released；5, the first heat-conducting glue
Adhesion coating；6, graphite linings；7, the second thermally conductive adhesive layer.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment: a kind of soaking pressure sensitive adhesive tape for smart phone, the two-sided pad pasting of heat dissipation fit in 1 He of radiating piece
Between heat generating components 2, the two-sided pad pasting of heat dissipation includes light strippable PET film 3 and re-releases type PET film 4, this is light exfoliated
It PET film 3 and re-releases and is disposed with the first thermally conductive adhesive layer 5, graphite linings 6 and the second thermally conductive adhesive layer 7 between type PET film 4；
The graphite linings 6 are obtained by following process, this process the following steps are included:
Step 1: Kapton is risen to 250 DEG C from room temperature with 4 ~ 6 degree/min speed, kept for 0.9 ~ 1.1 hour,
Then with 2.5 ~ 3.5 degree/min, 400 DEG C are risen to, is down to room temperature after being kept for 1 hour；
Step 2: the upper and lower surfaces in the Kapton Jing Guo step 1 are coated with one layer graphite modified dose and are handled
Kapton afterwards, the graphite modified dose of group by following parts by weight are grouped as: 25 parts of benzophenone tetracarboxylic dianhydride,
17 parts of pyromellitic dianhydride, 22 parts of diaminodiphenylmethane, 33 parts of dimethylformamide, 1.6 parts of ethylene glycol, polydimethylsiloxanes
2.7 parts of alkane；
Graphite modified dose of viscosity of embodiment is 35000CP.
Step 3: rising to 800 DEG C with the speed of 4 ~ 6 degree/min, kept for 0.9 ~ 1.1 hour；Again with 9 ~ 11 degree/
The speed of min rises to 1200 DEG C, cooling after saving 0.9 ~ 1.1 hour, to obtain the carbonized film of pre-burned；
Step 4: rolling the carbonized film of the pre-burned of the step 4 using calender；
Step 5: rising to 2400 DEG C with the speed of 19 ~ 21 degree/min, kept for 0.9 ~ 1.1 hour, then with 19 ~ 21 degree/
The speed of min rises to 2900 DEG C, cooling after being kept for 1.8 ~ 2.2 hours, to obtain the graphite film of main firing；
Step 6: then the graphite film of the resulting main firing of step 5 carries out calendering to obtain the graphite linings 6.
The step 6 is obtained into graphite linings and carries out calendering process.
The grammes per square metre of above-mentioned light 1 peeling force of strippable PET film is 5 ~ 10g/m 2, described to re-release 2 peeling force of type PET film
Grammes per square metre be 50 ~ 100g/m 2.
When using the above-mentioned soaking pressure sensitive adhesive tape for smart phone, graphite linings are coated with by upper and lower surfaces in structure
One layer graphite modified dose of Kapton is prepared, and improves heating conduction in the vertical direction and the horizontal direction, keeps away
Exempt from adhesive tape hot-spot, realizes the uniformity of adhesive tape heating conduction；Secondly, its graphite for being located at Kapton surface changes
Property agent is by benzophenone tetracarboxylic dianhydride, pyromellitic acid anhydride, diaminodiphenylmethane, dimethylformamide, ethylene glycol, poly- two
Methylsiloxane composition, is coated on Kapton, and the pin hole being filled in heating process improves crystallinity simultaneously,
It is excessive caused uneven to also overcome thermal contraction, improves graphite linings biaxial tension performance；Again, Kapton surface
With graphite modified dose, graphite linings and thermally conductive adhesive layer heating conduction in two-sided pad pasting are improved, and institute is rolled using calender
The carbonized film for stating pre-burned, the volume contraction for avoiding fold and being graphitized in sintering process, improves compactness and crystallinity,
Further improve heating conduction in the vertical direction and the horizontal direction.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (3)
1. a kind of smart phone soaking pressure sensitive adhesive tape, special piece is, is a two-sided pad pasting of heat dissipation, and fit in radiating piece
(1) between heat generating components (2), the two-sided pad pasting of heat dissipation includes light strippable PET film (3) and re-releases type PET film (4),
It this light strippable PET film (3) and re-releases and is disposed with the first thermally conductive adhesive layer (5), graphite linings (6) between type PET film (4)
With the second thermally conductive adhesive layer (7)；It is characterized by: the graphite linings (6) are obtained by following process, this process packet
Include following steps:
Step 1: Kapton is risen to 250 DEG C from room temperature, room temperature is down to after 400 DEG C are risen to after heat preservation；
Step 2: the upper and lower surfaces in the Kapton Jing Guo step 1 are coated with one layer graphite modified dose and are handled
Kapton afterwards, graphite modified dose of the viscosity are 30000 ~ 48000CP；
The graphite modified dose of group by following parts by weight is grouped as: 25 parts of benzophenone tetracarboxylic dianhydride, pyromellitic acid anhydride
17 parts, 22 parts of diaminodiphenylmethane, 30 ~ 35 parts of dimethylformamide, 1.5 ~ 2.5 parts of ethylene glycol, polydimethylsiloxanes
2.7 parts of alkane；
Step 3: by treated, Kapton is warming up to 800 DEG C, is being warming up to 1200 DEG C after heat preservation, cooling after heat preservation,
To obtain the carbonized film of pre-burned；
Step 4: rolling the carbonized film of the pre-burned of the step 4 using calender；
Step 5: being warming up to 2400 DEG C, 2900 DEG C are warming up to after heat preservation again, it is cooling after heat preservation, to obtain the graphite of main firing
Film；
Step 6: then the graphite film of the resulting main firing of step 5 carries out calendering to obtain the graphite linings (6).
2. smart phone according to claim 1 soaking pressure sensitive adhesive tape, it is characterised in that: the step 4 is obtained stone
Layer of ink carries out calendering process.
3. smart phone according to claim 1 soaking pressure sensitive adhesive tape, it is characterised in that: the light strippable PET film
The grammes per square metre of peeling force is 5 ~ 10g/m 2, and the grammes per square metre for re-releasing type PET film peeling force is 50 ~ 100g/m 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962079.4A CN109280501A (en) | 2018-08-22 | 2018-08-22 | A kind of smart phone soaking pressure sensitive adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962079.4A CN109280501A (en) | 2018-08-22 | 2018-08-22 | A kind of smart phone soaking pressure sensitive adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109280501A true CN109280501A (en) | 2019-01-29 |
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ID=65182911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810962079.4A Pending CN109280501A (en) | 2018-08-22 | 2018-08-22 | A kind of smart phone soaking pressure sensitive adhesive tape |
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| Country | Link |
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| CN (1) | CN109280501A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381083A (en) * | 2014-01-26 | 2017-02-08 | 斯迪克新型材料（江苏）有限公司 | Isothermal pressure-sensitive adhesive tape used for intelligent mobile phones |
-
2018
- 2018-08-22 CN CN201810962079.4A patent/CN109280501A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381083A (en) * | 2014-01-26 | 2017-02-08 | 斯迪克新型材料（江苏）有限公司 | Isothermal pressure-sensitive adhesive tape used for intelligent mobile phones |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |
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| RJ01 | Rejection of invention patent application after publication |