CN103694918A - Graphite heat-conducting adhesive tape - Google Patents
Graphite heat-conducting adhesive tape Download PDFInfo
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- CN103694918A CN103694918A CN201310647193.5A CN201310647193A CN103694918A CN 103694918 A CN103694918 A CN 103694918A CN 201310647193 A CN201310647193 A CN 201310647193A CN 103694918 A CN103694918 A CN 103694918A
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Abstract
The invention discloses a graphite heat-dissipation adhesive tape which comprises a heat-conducting adhesive layer, wherein the heat-conducting adhesive layer is prepared by mixing and baking the following components in parts by weight: 100 parts of acrylate adhesive, 100-145 parts of graphite powder, 200-220 parts of solvent, 0.6-0.8 part of curing agent and 0.06-0.07 part of coupling agent. The acrylate adhesive is composed of the following components in parts by weight: 100 parts of butyl acrylate, 0.4-0.6 part of benzoperoxide, 80-90 parts of 2-ethylhexyl acrylate, 2-2.5 parts of acrylic acid, 10-12 parts of methyl methacrylate, 3 parts of vinyl acetate and 0.5-0.6 part of 2-hydroxyethyl methacrylate. The thickness ratio of the PET (polyethylene terephthalate) to the heat-conducting adhesive layer to the aluminum foil layer is 100:(200-250):(20-50); and the diameter of the graphite powder is 3-6 micrometers. The adhesive tape enhances the heat conductivity in the length and thickness directions, implements the uniformity of the heat conductivity of the adhesive tape, is beneficial to heat dissipation to avoid local overheating of the adhesive tape, and improves the properties and service life of the product.
Description
Technical field
The present invention relates to a kind of graphite heat conducting sealing tape, belong to adhesive material technical field.
Background technology
Along with the fast development of electron trade, now from common desktop computer, to notebook computer, panel computer, smart mobile phone, scientific and technical innovation is advanced by leaps and bounds.Electronic product carries more and more lighting, and volume is more and more less, and function from strength to strength, causes integrated level more and more higher like this.Cause like this volume dwindling, function grow is large, directly causes the heat radiation of electronic devices and components to require more and more higher.And the fan type radiating adopting in the past, because volume is large, can produce the problems such as noise, by market, eliminated gradually.And then produced other heat sink material, as Copper Foil, the heat radiation of aluminium foil class, but due to resource-constrained, and expensive, radiating effect is good in the imagination not also, slowly, all finding new efficient heat sink material.Secondly, due to the diversity of electronic product, existing product often needs customization, thus the difficult popularization that is suitable for concrete use occasion and has limited its application; Therefore, if design a kind of for electronic product feature there is high-performance heat radiation adhesive tape, become the direction that those of ordinary skills make great efforts.
Summary of the invention
The object of the invention is to provide a kind of graphite heat conducting sealing tape, this graphite heat conducting sealing tape has guaranteed that length and thickness direction have all improved thermal conductivity, and realized the homogeneity of adhesive tape heat conductivility, adhesive tape local superheating is also avoided in the diffusion that had both been conducive to heat, has improved performance and the life-span of product; Secondly, product versatility and convenience, can be applicable to the electronic product of different shape.
For achieving the above object, the technical solution used in the present invention is: a kind of graphite heat conducting sealing tape, comprise that a thickness is 0.004mm ~ 0.025mmPET film, this PET film upper surface plating has an aluminium foil layer, PET film lower surface is coated with heat-conducting glue adhesion coating, one interleaving paper is covered on another surface of heat-conducting glue adhesion coating, and after described heat-conducting glue adhesion coating is mixed by following parts by weight of component, baking obtains:
Acrylic ester adhesive 100,
Graphite Powder 99 100 ~ 145,
Solidifying agent 0.6 ~ 0.8,
Coupling agent 0.06 ~ 0.07;
Described acrylic ester adhesive is comprised of following parts by weight of component:
Benzoyl peroxide 0.4 ~ 0. 6,
Isooctyl acrylate monomer 80 ~ 90,
Vinyl acetate between to for plastic 3,
2-hydroxyethyl methacrylate 0.5 ~ 0.6;
The Thickness Ratio of described PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200 ~ 250:20 ~ 50;
Described Graphite Powder 99 diameter is 3 ~ 6 microns.
In technique scheme, further improved plan is as follows:
In such scheme, the Thickness Ratio of described PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200:100; Described Graphite Powder 99 diameter is 4 ~ 4.5 microns.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
1, graphite heat conducting sealing tape of the present invention, has guaranteed that length and thickness direction have all improved thermal conductivity, and has realized the homogeneity of adhesive tape heat conductivility, adhesive tape local superheating is also avoided in the diffusion that had both been conducive to heat, has improved performance and the life-span of product;
2, the present invention adopts the component of three kinds of certain content as solvent, has effectively avoided graphite granule agglomeration in the gluing system of subsequent technique acrylate, thereby is conducive to length and thickness direction heat conduction synchronously improves;
3, the present invention is specific according to its formula, adopting diameter is that the graphite of 36 microns and Thickness Ratio are the heat conduction pad pasting of 10:10 30:1 10 the PET film, heat-conducting glue adhesion coating and the aluminium foil layer that superpose successively, taking into account existing pad pasting performance simultaneously, more be conducive to spread heat and the transmission of electron device, thereby further avoided concentrating of adhesive tape amount of localized heat, the work-ing life of having improved product.
Accompanying drawing explanation
Accompanying drawing 1 is graphite heat conducting sealing tape structural representation of the present invention;
Accompanying drawing 2 is the influence curve figure of PET thickness of the present invention to heat conductivility;
Accompanying drawing 3 is the influence curve figure of churning time of the present invention to thermal conductivity;
Accompanying drawing 4 is for rotating speed of the present invention is on the impact of thermal conductivity (stirring 8H) graphic representation.
In above accompanying drawing: 1, PET film; 2, aluminium foil layer; 3, heat-conducting glue adhesion coating; 4, interleaving paper.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment: a kind of graphite heat conducting sealing tape, comprise that a thickness is 0.004mm ~ 0.025mmPET film, this PET film upper surface plating has an aluminium foil layer, PET film lower surface is coated with heat-conducting glue adhesion coating, one interleaving paper is covered on another surface of heat-conducting glue adhesion coating, and after described heat-conducting glue adhesion coating is mixed by following parts by weight of component, baking obtains:
Acrylic ester adhesive 100,
Graphite Powder 99 130,
Solidifying agent 0.8,
Coupling agent 0.07;
Described acrylic ester adhesive is comprised of following parts by weight of component:
Isooctyl acrylate monomer 90,
Vinyl acetate between to for plastic 3,
2-hydroxyethyl methacrylate 0.5;
The Thickness Ratio of described PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200 ~ 250:20 ~ 50;
The Thickness Ratio of above-mentioned PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200:50; Described Graphite Powder 99 diameter is 4 ~ 4.5 microns.
The graphite heat conducting sealing tape of above-described embodiment, comprises the following steps:
The first step: Graphite Powder 99, solvent is even, and stir and form mixed solutions 84 ~ 86 ℃ of conditions;
Second step: butyl acrylate, benzoyl peroxide, Isooctyl acrylate monomer, vinylformic acid, methyl methacrylate, vinyl acetate between to for plastic, 2-hydroxyethyl methacrylate are mixed with the mixed solution of the first step, and disperse 1 ~ 2 hour through high speed agitator, thereby mix formation mixing solutions;
The 3rd step: insulation after the mixing solutions of second step being heated to 80 85 ℃ in reactor, in insulating process, to divide and add for 1 ~ 3 time benzoyl peroxide to obtain the gluing mixed solvent of heat conduction, described soaking time is 4 ~ 10 hours;
The 4th step: the gluing mixed solvent of heat conduction that the 3rd step is obtained is coated the lower surface that upper surface has the PET film of aluminium foil layer;
The 5th step: the gluing mixed solvent of heat conduction in the 4th step is toasted and forms heat-conducting glue adhesion coating;
The 6th step: by the separated type material of fitting through another surface of heat-conducting glue adhesion coating of overbaking in the 5th step;
The 7th step: rolling.
The whipping temp of the above-mentioned the first step is 85 ℃.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (2)
1. a graphite heat conducting sealing tape, it is characterized in that: comprise that a thickness is 0.004mm ~ 0.025mmPET film, this PET film upper surface plating has an aluminium foil layer, PET film lower surface is coated with heat-conducting glue adhesion coating, one interleaving paper is covered on another surface of heat-conducting glue adhesion coating, and after described heat-conducting glue adhesion coating is mixed by following parts by weight of component, baking obtains:
Acrylic ester adhesive 100,
Graphite Powder 99 100 ~ 145,
Solvent 200 ~ 220,
Solidifying agent 0.6 ~ 0.8,
Coupling agent 0.06 ~ 0.07;
Described acrylic ester adhesive is comprised of following parts by weight of component:
Butyl acrylate 100,
Benzoyl peroxide 0.4 ~ 0. 6,
Isooctyl acrylate monomer 80 ~ 90,
Vinylformic acid 2 ~ 2.5,
Methyl methacrylate 10 ~ 12,
Vinyl acetate between to for plastic 3,
2-hydroxyethyl methacrylate 0.5 ~ 0.6;
The Thickness Ratio of described PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200 ~ 250:20 ~ 50;
Described Graphite Powder 99 diameter is 3 ~ 6 microns.
2. graphite heat conducting sealing tape according to claim 1, is characterized in that: the Thickness Ratio of described PET film, heat-conducting glue adhesion coating and aluminium foil layer is 100:200:50; Described Graphite Powder 99 diameter is 4 ~ 4.5 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647193.5A CN103694918A (en) | 2012-12-18 | 2012-12-18 | Graphite heat-conducting adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647193.5A CN103694918A (en) | 2012-12-18 | 2012-12-18 | Graphite heat-conducting adhesive tape |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210551732.0A Division CN103045117B (en) | 2012-12-18 | 2012-12-18 | Heat dissipation adhesive tape applied to electronic device and preparation process of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103694918A true CN103694918A (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310647193.5A Pending CN103694918A (en) | 2012-12-18 | 2012-12-18 | Graphite heat-conducting adhesive tape |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414649A (en) * | 2014-05-27 | 2017-02-15 | 汉高知识产权控股有限责任公司 | Enhanced pressure sensitive adhesive for thermal management applications |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202374617U (en) * | 2011-11-02 | 2012-08-08 | 杜明亮 | Ultrathin heat radiation film having electromagnetic shielding function |
| WO2012148218A2 (en) * | 2011-04-28 | 2012-11-01 | ㈜솔루에타 | Horizontal thermoelectric tape and method for manufacturing same |
-
2012
- 2012-12-18 CN CN201310647193.5A patent/CN103694918A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012148218A2 (en) * | 2011-04-28 | 2012-11-01 | ㈜솔루에타 | Horizontal thermoelectric tape and method for manufacturing same |
| CN202374617U (en) * | 2011-11-02 | 2012-08-08 | 杜明亮 | Ultrathin heat radiation film having electromagnetic shielding function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106414649A (en) * | 2014-05-27 | 2017-02-15 | 汉高知识产权控股有限责任公司 | Enhanced pressure sensitive adhesive for thermal management applications |
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Application publication date: 20140402 |