CN207047146U - A kind of heat-conducting silica gel sheet - Google Patents
A kind of heat-conducting silica gel sheet Download PDFInfo
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- CN207047146U CN207047146U CN201720846134.4U CN201720846134U CN207047146U CN 207047146 U CN207047146 U CN 207047146U CN 201720846134 U CN201720846134 U CN 201720846134U CN 207047146 U CN207047146 U CN 207047146U
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- silica gel
- heat
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Abstract
The utility model discloses a kind of heat-conducting silica gel sheet, including silica gel substrate, the bottom of silica gel substrate is bonded with self-adhesive layer by crosslinking agent, the top of silica gel substrate is bonded with functional layer by crosslinking agent, side of the functional layer away from silica gel substrate is provided with surface modifier, the top of silica gel substrate, which is run through, is bonded with snubber block layer, the inside of functional layer is extended at the top of snubber block layer, functional layer is by Heat Conduction Material according to a certain percentage, insulating materials, encapsulant and fire proofing sequentially add reactor, it is stirred under vacuum with high speed motive force mixer, obtain well mixed mixture, it the utility model is related to silica gel piece technical field.The heat-conducting silica gel sheet, the requirement higher to process technology is reduced, shortens the price of production cost, preferably improves good heat conduction, insulation, sealing and fire-retardant performance, the utilization rate applied on thin small accurate product is improved, meets the requirement that modernization uses.
Description
Technical field
Silica gel piece technical field is the utility model is related to, specially a kind of heat-conducting silica gel sheet.
Background technology
Heat-conducting silica gel sheet is using silica gel as base material, the various auxiliary materials such as addition metal oxide, is synthesized by special process
A kind of heat-conducting medium material, in industry, also known as thermal conductive silicon rubber cushion, heat conduction silica gel piece, soft heat conductive pad, heat conductive silica gel pad
Etc., it is to be produced exclusively for the design that heat is transmitted using gap, being capable of blind, completion heating position and radiating part
The heat transfer of interdigit, while the effect such as insulation, damping, sealing is also acted as, it disclosure satisfy that device miniaturization and the design of ultrathin
It is required that be great manufacturability and usability, and thickness is applied widely, a kind of splendid conductive filler material.Heat-conducting silica gel sheet
For the control mainboard of electric equipment products, the backing plate and foot pad in the inside and outside portion of motor, electronic apparatus, automobile mechanical, computer master
Machine, notebook computer, DVD, VCD and the material of any required filling and heat radiation module.
At present, although used heat-conducting silica gel sheet thermal conductivity ratio heat-conducting silicone grease is high on the market, thermal resistance is equally
Higher than heat conductive silica gel, below thickness 0.5mm heat conductive silica gel machining process is complicated, higher to the technical requirements of processing, raw
It is high to produce cost price, and lacks good heat conduction, insulation, sealing and fire-retardant performance, reduces and applies thin small accurate
Utilization rate on product, it is impossible to meet the requirement that modernization uses.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of heat-conducting silica gel sheet, solves production cost price
Height, and lack good heat conduction, insulation, sealing and fire-retardant performance, reduces to apply and is used on thin small accurate product
The problem of rate.
To realize object above, the utility model is achieved by the following technical programs：A kind of heat-conducting silica gel sheet, including
Silica gel substrate, the bottom of the silica gel substrate is bonded with self-adhesive layer by crosslinking agent, and passes through crosslinking at the top of silica gel substrate
Agent is bonded with functional layer, and side of the functional layer away from silica gel substrate is provided with surface modifier, and the top of silica gel substrate
Portion extends to the inside of functional layer, and functional layer is by according to one through snubber block layer is bonded with the top of the snubber block layer
Heat Conduction Material, insulating materials, encapsulant and the fire proofing of certainty ratio sequentially add reactor, true with high speed motive force mixer
Sky stirring, obtains well mixed mixture.
Preferably, the self-adhesive layer is dimethyl silicone polymer, and dimethyl silicone polymer is uniformly applied by crosslinking agent
It is overlying on the surface of silica gel substrate.
Preferably, the surface modifier is containing a kind of in vinyl, acrylic, cyclobutenyl, pentenyl or hexenyl
Silane coupler.
Preferably, the Heat Conduction Material is that the one kind synthesized by silica, graphite and aluminium nitride by special process is led
Thermal medium material.
Preferably, the encapsulant adds cure site monomer as monomer using acrylate and synthesized by suspension polymerization.
Preferably, the quantity of the snubber block layer is at least three, and snubber block layer is arranged in a manner of equidistant.
The utility model provides a kind of heat-conducting silica gel sheet.Possesses following beneficial effect：The heat-conducting silica gel sheet, passes through silica gel
The bottom of base material is bonded with self-adhesive layer by crosslinking agent, and the top of silica gel substrate is bonded with functional layer, functional layer by crosslinking agent
Side away from silica gel substrate is provided with surface modifier, and the top of silica gel substrate, which is run through, is bonded with snubber block layer, snubber block layer
Top extend to the inside of functional layer, although solving current heat-conducting silica gel sheet thermal conductivity ratio heat conduction used on the market
Silicone grease is high, but the thermal resistance equally also situation higher than heat conductive silica gel, avoids the heat-conducting silica gel sheet processing below thickness 0.5mm
Complex process, the requirement higher to process technology is reduced, shorten the price of production cost, preferably improve good lead
Heat, insulation, sealing and fire-retardant performance, improve the utilization rate applied on thin small accurate product, meeting modernization makes
It is required that.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the structural representation of the utility model functional layer.
Fig. 3 is the structural representation of the utility model Heat Conduction Material.
Fig. 4 is the structural representation of the utility model encapsulant.
In figure：1 silica gel substrate, 2 crosslinking agents, 3 self-adhesive layers, 4 functional layers, 41 Heat Conduction Materials, 411 silica, 412 stones
Ink, 413 aluminium nitride, 42 insulating materials, 43 encapsulants, 431 acrylate, 432 cure site monomers, 44 fire proofings, 5 surfaces
Modifying agent, 6 snubber block layers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-4 are referred to, the utility model provides a kind of technical scheme：A kind of heat-conducting silica gel sheet, including silica gel substrate 1,
The bottom of silica gel substrate 1 is bonded with self-adhesive layer 3 by crosslinking agent 2, and crosslinking agent 2 is the methyl hydrogen that hydrogen content is 0.05~0.7%
Polysiloxanes, self-adhesive layer 3 are dimethyl silicone polymer, and the chemical state dimethicone of dimethyl silicone polymer is colourless or shallow
Yellow liquid, tasteless, transparency is high, have heat resistance, cold resistance, viscosity vary with temperature small, water proofing property, surface tension it is small,
With thermal conductivity, thermal conductivity factor 0.134-0.159W/M*K, translucency is light transmittance 100%, and dimethicone is nonpoisonous and tasteless,
With physiological inertia, good chemical stability, electrical insulating property and weatherability, hydrophobicity are good, and have very high anti-shearing energy
Power, can be long-term use of at -50 DEG C~200 DEG C, has excellent physical characteristic, can be directly used for damp proof insulation, damps, subtract
Shake, defoam, lubrication, polishing etc., be widely used as insulation lubrication, shockproof, grease proofing dirt, dielectric liquid and heat carrier.And it is used as
Defoaming, releasing agent, paint and chemical product additive, and dimethyl silicone polymer is evenly applied to silica gel base by crosslinking agent 2
The surface of material 1, and the top of silica gel substrate 1 is bonded with functional layer 4 by crosslinking agent 2, and functional layer 4 is away from silica gel substrate 1
Side is provided with surface modifier 5, and surface modifier 5 is containing in vinyl, acrylic, cyclobutenyl, pentenyl or hexenyl
A kind of silane coupler, and the top of silica gel substrate 1 uses elastic rubber through snubber block layer 6, snubber block layer 6 is bonded with
Glue, the effect of damping can be preferably played, the quantity of snubber block layer 6 is at least three, and snubber block layer 6 is with equidistant side
Formula arranges, and the top of snubber block layer 6 extends to the inside of functional layer 4, and functional layer 4 is by Heat Conduction Material according to a certain percentage
41st, insulating materials 42, encapsulant 43 and fire proofing 44 sequentially add reactor, are stirred under vacuum with high speed motive force mixer,
Obtain well mixed mixture, insulating materials 42 is using phenolic resin cloth base enhancing PFCC, therefore flexible, plasticity, molten
It can be dissolved in agent, heating can melt, hardness and the less feature of fragility, and fire proofing 44 is efficient using PP efficient flame-retarding agents, PP
Fire retardant is the reactive flame retardant of the elements such as efficient brominated, phosphorus, nitrogen, with traditional addition type bromide fire retardant decabrominated dipheny
, the good flame retardation effects, it is not necessary to add three oxidations two few compared to addition such as the double S ethers of ether, tetrabromobisphenol A, eight bromo ether, eight bromines, TBC
Antimony, bromine content is low, while the fire retardant also has very excellent processing heat surely, and Heat Conduction Material 41 is by silica 411, stone
A kind of heat-conducting medium material that ink 412 and aluminium nitride 413 are synthesized by special process, encapsulant 43 are with acrylate 431
Monomer adds cure site monomer 432 and synthesized by suspension polymerization, and encapsulant 43 has good physical and mechanical property, returned
Elasticity is high, compression set is small, sealed reliable, easy to process and service life length.Silicone rubber sealant energy high temperature resistant and low
It is temperature, radiation hardness, vacuum-resistant, pollution-free, nontoxic；Polysulfide rubber sealant has excellent resistance to aviation fuel performance, is also exactly
It is high temperature resistant, high pressure resistant, rub resistance, pressure-resistant.
In summary：The heat-conducting silica gel sheet, self-adhesive layer 3, silicon are bonded with by crosslinking agent 2 by the bottom of silica gel substrate 1
The top of gum base materials 1 is bonded with functional layer 4 by crosslinking agent 2, and side of the functional layer 4 away from silica gel substrate 1 is provided with surface and changed
Property agent 5, through snubber block layer 6 is bonded with, the top of snubber block layer 6 extends to the inside of functional layer 4 for the top of silica gel substrate 1,
Although solving at present, used heat-conducting silica gel sheet thermal conductivity ratio heat-conducting silicone grease is high on the market, and thermal resistance is equally also than leading
Hot silica gel wants high situation, and the heat conductive silica gel machining process avoided below thickness 0.5mm is complicated, reduces to process technology
Higher requirement, shortens the price of production cost, preferably improves good heat conduction, insulation, sealing and fire-retardant performance,
The utilization rate applied on thin small accurate product is improved, meets the requirement that modernization uses.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present ".
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of heat-conducting silica gel sheet, including silica gel substrate（1）, it is characterised in that：The silica gel substrate（1）Bottom pass through crosslinking
Agent（2）It is bonded with self-adhesive layer（3）, and silica gel substrate（1）Top pass through crosslinking agent（2）It is bonded with functional layer（4）, the work(
Ergosphere（4）Away from silica gel substrate（1）Side be provided with surface modifier（5）, and silica gel substrate（1）Top through bonding
There is snubber block layer（6）, the snubber block layer（6）Top extend to functional layer（4）Inside.
A kind of 2. heat-conducting silica gel sheet according to claim 1, it is characterised in that：The self-adhesive layer（3）For poly dimethyl silicon
Oxygen alkane, and dimethyl silicone polymer passes through crosslinking agent（2）It is evenly applied to silica gel substrate（1）Surface.
A kind of 3. heat-conducting silica gel sheet according to claim 1, it is characterised in that：The snubber block layer（6）Quantity at least
For three, and snubber block layer（6）Arranged in a manner of equidistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846134.4U CN207047146U (en) | 2017-07-13 | 2017-07-13 | A kind of heat-conducting silica gel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846134.4U CN207047146U (en) | 2017-07-13 | 2017-07-13 | A kind of heat-conducting silica gel sheet |
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| Publication Number | Publication Date |
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| CN207047146U true CN207047146U (en) | 2018-02-27 |
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| CN201720846134.4U Expired - Fee Related CN207047146U (en) | 2017-07-13 | 2017-07-13 | A kind of heat-conducting silica gel sheet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732931A (en) * | 2020-06-29 | 2020-10-02 | 王朝鹏 | Heat-conducting adhesive silica gel |
| CN113322018A (en) * | 2021-05-26 | 2021-08-31 | 上海亥博胶粘材料有限公司 | Adhesive tape with reliability-enhancing adhesive and application method |
| CN114104866A (en) * | 2020-08-28 | 2022-03-01 | 扬中市华龙橡塑电器有限公司 | Novel flame-retardant shockproof foam adhesive tape |
-
2017
- 2017-07-13 CN CN201720846134.4U patent/CN207047146U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732931A (en) * | 2020-06-29 | 2020-10-02 | 王朝鹏 | Heat-conducting adhesive silica gel |
| CN114104866A (en) * | 2020-08-28 | 2022-03-01 | 扬中市华龙橡塑电器有限公司 | Novel flame-retardant shockproof foam adhesive tape |
| CN113322018A (en) * | 2021-05-26 | 2021-08-31 | 上海亥博胶粘材料有限公司 | Adhesive tape with reliability-enhancing adhesive and application method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 202, room 48, Huli garden, East Sea area, Tongan, Fujian Province, Tongan, Fujian Patentee after: Xiamen nexus new materials Co., Ltd Address before: 361000 Room 202, No.48, huliyuan, Huandong sea area industrial zone, Tong'an District, Xiamen City, Fujian Province Patentee before: XIAMEN NAIKOS INDUSTRY AND TRADE Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20200713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |