CN107722920A - A kind of bi-component heat conductive flame-retarding gel and preparation method thereof - Google Patents
A kind of bi-component heat conductive flame-retarding gel and preparation method thereof Download PDFInfo
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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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- 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
- C09J11/02—Non-macromolecular additives
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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Abstract
The present invention relates to Heat Conduction Material field, specifically relates to a kind of bi-component heat conductive flame-retarding gel and preparation method thereof；The bi-component heat conductive flame-retarding gel includes A glue and B glue：The A glue includes following components in percentage by weight：Organic siliconresin, vinyl silicone oil, containing hydrogen silicone oil, silane coupler, silica gel inhibitor, aluminum oxide, boron nitride, fireproof powder；The B glue includes following components in percentage by weight：Organic siliconresin, vinyl silicone oil, containing hydrogen silicone oil, platinum water, silane coupler, silica gel tackifier, aluminum oxide, boron nitride, fireproof powder.The bi-component heat conductive flame-retarding gel of the present invention, with excellent heat conductivility, the bonding force between product and component can be improved, easy to use, service life length, and be glued available for the dispensing at the irregular position of component, its preparation technology is simple, production efficiency is high, the properties of product of preparation are stable, available for industrialized production.
Description
Technical field
The present invention relates to Heat Conduction Material field, specifically relates to a kind of bi-component heat conductive flame-retarding gel and preparation method thereof.
Background technology
With the continuous progress of science and technology, electronic component and electronic equipment develop to minimizing and being miniaturized direction, but its
Because also getting worse, heat dissipation design turn into the important of hyundai electronicses electrical apparatus industry therewith for the negative effect that heat dissipation problem is brought
Part, now then need the insulating materials of heat conduction that caused heat sheds, it is more to export heat using fin
Conventional heat dissipating method.
Traditional heat conduction product mainly has the uncured thermally conductive gel of one pack system, one pack system solidification thermally conductive gel, heat-conducting cream, leads
Hot silica gel piece, heat conduction silica gel piece, heat conduction casting glue, later develop into heat-conducting silica gel sheet etc., wherein one pack system solidification thermally conductive gel
In the presence of the shortcomings of environmentally friendly dangerous, solidification process has bigger shrinkage factor, and heat conductivility is low；The uncured heat conduction of one pack system is coagulated
Oil yield height, short life, the shortcomings of reprocessing not easy-clear be present in glue and heat-conducting cream；It is big product hardness to be present in heat conduction casting glue, leads
Hot property is low, and it is too big mobility during use to be present, the shortcomings of bad dispensing；Heat-conducting silica gel sheet is present to irregular first device
The bad fitting of part, easily comes off, the shortcomings of influenceing heat conductivility；It is low heat conductivility to be present in heat conduction silica gel piece, surface tack free,
To the bad fitting of component, the shortcomings of easily coming off.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of bi-component heat conductive flame-retarding gel, its
With excellent heat conductivility, the bonding force between product and component can be improved, easy to use, service life is grown, and can
Dispensing for the irregular position of component is glued.
It is a further object of the present invention to provide the preparation method of bi-component heat conductive flame-retarding gel, this method preparation technology letter
List, production efficiency are high, the properties of product of preparation are stable, available for industrialized production.
The purpose of the present invention is achieved through the following technical solutions：
A kind of bi-component heat conductive flame-retarding gel, the bi-component heat conductive flame-retarding gel include A glue and B glue：
The A glue includes following components in percentage by weight：
Organic siliconresin 6-14%
Vinyl silicone oil 5-12%
Containing hydrogen silicone oil 0.5-1.2%
Silane coupler 0.05-0.12%
Silica gel inhibitor 0.02-0.1%
Aluminum oxide 54-70%
Boron nitride 5-10%
Fireproof powder surplus.
The B glue includes following components in percentage by weight：
Organic siliconresin 6-14%
Vinyl silicone oil 5-12%
Containing hydrogen silicone oil 0.5-1.2%
Platinum water 0.8-1.6%
Silane coupler 0.05-0.12%
Silica gel tackifier 0.12-0.5%
Aluminum oxide 54-70%
Boron nitride 5-10%
Fireproof powder surplus；
Preferably, the mass ratio of the A glue and B glue is：1:0.75-1.25.
The A glue of the present invention and each component of B glue cooperate, and network-like close packed structure, effectively prevent small molecule silicon
Oil oozes out, and oil yield is low, is easy to removing and reprocesses；The product A glue and B glue of the present invention, into paste, is adapted for use with dispensing and sets
Standby to be operated, production efficiency is high；Bi-component heat conductive flame-retarding gel after being used in mixed way has good heat conductivility, with first device
The adhesion strength of part is high.
Preferably, the aluminum oxide is made up of the component of following parts by weight：Ball-aluminium oxide 40-50 parts, irregular oxidation
Aluminium 14-20 parts.The spherical rate height of particle of ball-aluminium oxide, size distribution are wide, can carry out high density filling to product, bi-component be led
Thermal resistance combustion gel pyroconductivity is high, thermal diffusivity it is good because its outward appearance is spherical, the abrasion to equipment substantially reduces, can extension device
Service life；Irregular aluminum oxide has larger ratio surface agent and adhesive force；The present invention is by ball-aluminium oxide and irregular oxygen
Change aluminium compounding, in follow-up mixed process, ball-aluminium oxide and irregular aluminum oxide move together, effectively prevent aluminum oxide
Agglomeration, in the irregular alumina filled gap between the various gaps of organic siliconresin and ball-aluminium oxide,
Aluminum oxide is more uniformly spread, makes heat conductive flame-retarding is solidifying to form netted close packed structure, improves packed density, led so as to improve
Thermal resistance combustion solidifying heat conductivility and thermal diffusivity, improve mechanical performance.
Preferably, the hydrogeneous mass fraction of the containing hydrogen silicone oil is 0. 16-0.20%.
Preferably, the hydrogeneous mass fraction of the platinum water is 0.4-0.6%, is 4000-6000PPM containing platinum.Platinum water
For silicone oil type platinum catalyst, high catalytic efficiency, side reaction adjoint in Si-Vi and Si-H courses of reaction can be suppressed, avoided
The generation of atrament, and improve the fire resistance of bi-component heat conductive flame-retarding gel.
Preferably, the silica gel inhibitor is acetylene basic ring ethanol, and acetylene basic ring ethanol stores as addition-type silicon rubber
Stabilizer, hydrosilylation inhibitor, can as heat conductive flame-retarding gel drier and with platinum catalysis be used cooperatively, improve
The combination property of product, and it is used as corrosion inhibitors for acidic media.
Preferably, the silica gel tackifier are Silane coupling reagent KH-570, available for improvement bi-component heat conductive flame-retarding gel
Adhesive property, with and can improve the mechanical performance and weatherability of bi-component heat conductive flame-retarding gel.
Preferably, the fireproof powder is aluminium hydroxide.Aluminium hydroxide can not only be fire-retardant as fire retardant, and can prevent
Smoke, droppings not being produced, does not produce toxic gas, aluminium hydroxide and platinum aqueous phase coordinate, and improve the anti-flammability of the present invention
Energy.
The present invention also provides a kind of preparation method of bi-component heat conductive flame-retarding gel, comprises the following steps：
（1）A glue and B glue are prepared respectively；
（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
Preferably, the preparation method of the A glue comprises the following steps：
A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；
A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.7~-0.9MPa；
A4, the A glue extracted is filled into container；
The preparation method of the B glue comprises the following steps：
B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；
B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.7~-0.9MPa；
B4, the B glue extracted is filled into container.
The application of bi-component heat conductive flame-retarding gel of the present invention, using spot gluing equipment by A, B glue according to 1:0.75-1.25
Ratio it is well mixed after, dispensing is in the specified location of component.
Beneficial effects of the present invention：
（1）The present invention includes the A glue and B glue of separate configurations, is independently dispensed using preceding A glue and B glue, avoids A glue and B glue from mixing
The adverse effect of conjunction, can store at normal temperatures, storage life limit for length, during use only need to will A glue and B mix after can carry out dispensing,
It is easy to use；
（2）The bi-component heat conductive flame-retarding gel of the present invention has excellent heat conductivility, the bonding force chamber with component, can be used for
The dispensing applying glue at the irregular position of component, the heat conduction and heat radiation performance for improving component, the service life for extending component, improve
The stability of product, is easy to that removing is reprocessed and good flame retardation effect, environmental pollution are small；
（3）The properties of product that method preparation technology of the invention is simple, production efficiency is high, prepares are stable, big available for industrialization
Production.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1
In the present embodiment, a kind of bi-component heat conductive flame-retarding gel, the bi-component heat conductive flame-retarding gel includes A glue and B glue：
The A glue includes following components in percentage by weight：Organic siliconresin 6%, vinyl silicone oil 12%, containing hydrogen silicone oil 0.5%,
Silane coupler 0.05%, silica gel inhibitor 0.02%, aluminum oxide 70%, boron nitride 5%, fireproof powder surplus.
The B glue includes following components in percentage by weight：Organic siliconresin 6%, vinyl silicone oil 12%, containing hydrogen silicone oil
0.5%th, platinum water 0.8%, silane coupler 0.12%, silica gel tackifier 0.12%, aluminum oxide 70%, boron nitride 5%, more than fireproof powder
Amount.
Preferably, the aluminum oxide is made up of the component of following parts by weight：40 parts of ball-aluminium oxide, irregular aluminum oxide 14
Part.
Preferably, the hydrogeneous mass fraction of the containing hydrogen silicone oil is 0.016%.
Preferably, the hydrogeneous mass fraction of the platinum water is 0.4%, is 4000PPM containing platinum.
Preferably, the silica gel inhibitor is acetylene basic ring ethanol.Further, the acetylene basic ring ethanol is marked for Guangdong
U.S. fluosilicic new material Co., Ltd model HRO1 acetylene basic ring ethanol.
Preferably, the silica gel tackifier are Silane coupling reagent KH-570.
Preferably, the fireproof powder is aluminium hydroxide.
The present invention also provides a kind of preparation method of bi-component heat conductive flame-retarding gel, comprises the following steps：
（1）A glue and B glue are prepared respectively；
（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
Preferably, the preparation method of the A glue comprises the following steps：
A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；
A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.7MPa；
A4, the A glue extracted is filled into container；
Preferably, the preparation method of the B glue comprises the following steps：
B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；
B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.7MPa；
B4, the B glue extracted is filled into container.
The present embodiment also provides the application process of bi-component heat conductive flame-retarding gel, i.e., using spot gluing equipment by A, B glue according to
1:After 0.75 ratio is well mixed, dispensing is in the specified location of component.
In the present embodiment, the thermal conductivity factor of the bi-component heat conductive flame-retarding gel is
Embodiment 2
In the present embodiment, a kind of bi-component heat conductive flame-retarding gel, the bi-component heat conductive flame-retarding gel includes A glue and B glue：
The A glue includes following components in percentage by weight：Organic siliconresin 14%, vinyl silicone oil 5%, containing hydrogen silicone oil 1.2%,
Silane coupler 0.05%, silica gel inhibitor -0.1%, aluminum oxide 54%, boron nitride 10%, fireproof powder surplus.
The B glue includes following components in percentage by weight：Organic siliconresin 14%, vinyl silicone oil 5%, containing hydrogen silicone oil
1.2%th, platinum water 1.6%, silane coupler 0.05%, silica gel tackifier 0.5%, aluminum oxide 54%, boron nitride 10%, more than fireproof powder
Amount.
Preferably, the aluminum oxide is made up of the component of following parts by weight：50 parts of ball-aluminium oxide, irregular aluminum oxide 20
Part.
Preferably, the hydrogeneous mass fraction of the containing hydrogen silicone oil is 0.20%.
Preferably, the hydrogeneous mass fraction of the platinum water is 00.6%, is 6000PPM containing platinum.
Preferably, the silica gel inhibitor is acetylene basic ring ethanol.Further, the acetylene basic ring ethanol is marked for Guangdong
U.S. fluosilicic new material Co., Ltd model HRO1 acetylene basic ring ethanol.
Preferably, the silica gel tackifier are Silane coupling reagent KH-570.
Preferably, the fireproof powder is aluminium hydroxide.
The present invention also provides a kind of preparation method of bi-component heat conductive flame-retarding gel, comprises the following steps：
（1）A glue and B glue are prepared respectively；
（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
Preferably, the preparation method of the A glue comprises the following steps：
A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；
A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.8MPa；
A4, the A glue extracted is filled into container；
Preferably, the preparation method of the B glue comprises the following steps：
B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；
B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.8MPa；
B4, the B glue extracted is filled into container.
The present embodiment also provides the application process of bi-component heat conductive flame-retarding gel, i.e., using spot gluing equipment by A, B glue according to
1:After 1.25 ratio is well mixed, dispensing is in the specified location of component.
Embodiment 3
In the present embodiment, a kind of bi-component heat conductive flame-retarding gel, the bi-component heat conductive flame-retarding gel includes A glue and B glue：
The A glue includes following components in percentage by weight：Organic siliconresin 10%, vinyl silicone oil 9%, containing hydrogen silicone oil 0.9%,
Silane coupler 0.08%, silica gel inhibitor 0.06%, aluminum oxide 62%, boron nitride 8%, fireproof powder surplus.
The B glue includes following components in percentage by weight：Organic siliconresin 10%, vinyl silicone oil 9%, containing hydrogen silicone oil
0.9%th, platinum water 1.2%, silane coupler 0.8%, silica gel tackifier 0.3%, aluminum oxide 62%, boron nitride 8%, fireproof powder surplus.
Preferably, the aluminum oxide is made up of the component of following parts by weight：45 parts of ball-aluminium oxide, irregular aluminum oxide 17
Part.
Preferably, the hydrogeneous mass fraction of the containing hydrogen silicone oil is 0.18%.
Preferably, the hydrogeneous mass fraction of the platinum water is 0.5%, is 5000PPM containing platinum.
Preferably, the silica gel inhibitor is acetylene basic ring ethanol.Further, the acetylene basic ring ethanol is marked for Guangdong
U.S. fluosilicic new material Co., Ltd model HRO1 acetylene basic ring ethanol.
Preferably, the silica gel tackifier are Silane coupling reagent KH-570.
Preferably, the fireproof powder is aluminium hydroxide.
The present invention also provides a kind of preparation method of bi-component heat conductive flame-retarding gel, comprises the following steps：
（1）A glue and B glue are prepared respectively；
（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
Preferably, the preparation method of the A glue comprises the following steps：
A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；
A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.8MPa；
A4, the A glue extracted is filled into container；
Preferably, the preparation method of the B glue comprises the following steps：
B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；
B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.8MPa；
B4, the B glue extracted is filled into container.
The bi-component heat conductive flame-retarding gel of the present invention may be used at PCBA chips, plastic cement material shell and other devices etc., has
There are the effects such as superior cementability, efficient thermal diffusivity and good buffering, protection component.
Bi-component heat conductive flame-retarding gel can use on PCBA, by spot gluing equipment by A, B glue according to 1：1 ratio is fully mixed
Close, by the glue point of fixed dosage PCBA board material other devices, such as CPU, FPGA, DSP core mainstream chip and screening cover it
Between, after natural conditions solidification, play good radiating, buffering effect.
Bi-component heat conductive flame-retarding gel can use on plastic cement material shell, by spot gluing equipment by A, B glue according to 1：1 ratio
It is sufficiently mixed, puts in plastic casing material specified location, using the superior cementability of heat conductive flame-retarding gel, makes heat conductivility, makes
Plastic casing, glue and other devices three possess good contact, and play optimal radiating, buffering, adhesive effect.
Embodiment 4
In the present embodiment, a kind of bi-component heat conductive flame-retarding gel, the bi-component heat conductive flame-retarding gel includes A glue and B glue：
The A glue includes following components in percentage by weight：Organic siliconresin 10%, vinyl silicone oil 8%, containing hydrogen silicone oil 0.8%,
Silane coupler 0.1%, silica gel inhibitor 0.05%, aluminum oxide 60%, boron nitride 8%, fireproof powder surplus.
The B glue includes following components in percentage by weight：Organic siliconresin 10%, vinyl silicone oil 8%, containing hydrogen silicone oil
0.8%th, platinum water 1.0%, silane coupler 0.12%, silica gel tackifier 0.3%, aluminum oxide 65%, boron nitride 6%, more than fireproof powder
Amount.
The mass ratio of the A glue and B glue is：1:0.75-1.25.
Preferably, the aluminum oxide is made up of the component of following parts by weight：Ball-aluminium oxide 40-50 parts, irregular oxidation
Aluminium 14-20 parts.
Preferably, the hydrogeneous mass fraction of the containing hydrogen silicone oil is 0.016-0.18%.
Preferably, the hydrogeneous mass fraction of the platinum water is 0.4-0.6%, is 4000-6000PPM containing platinum.
Preferably, the silica gel inhibitor is acetylene basic ring ethanol.Further, the acetylene basic ring ethanol is marked for Guangdong
U.S. fluosilicic new material Co., Ltd model HRO1 acetylene basic ring ethanol.
Preferably, the silica gel tackifier are Silane coupling reagent KH-570.
Preferably, the fireproof powder is aluminium hydroxide.
The present invention also provides a kind of preparation method of bi-component heat conductive flame-retarding gel, comprises the following steps：
（1）A glue and B glue are prepared respectively；
（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
Preferably, the preparation method of the A glue comprises the following steps：
A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；
A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.7~-0.9MPa；
A4, the A glue extracted is filled into container；
Preferably, the preparation method of the B glue comprises the following steps：
B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed
Material is mediated, and obtains the first compound；
B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；
B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.8MPa；
B4, the B glue extracted is filled into container.
The other guide of the present embodiment is same as Example 3, repeats no more here.
Bi-component heat conductive flame-retarding gel made from embodiment 1-4 is subjected to dispensing using spot gluing equipment, put respectively in PCBA
On plate and plastic casing material plate, it is set to be subsequently placed in into diameter about 1cm stack type matter in vibratory sieve, time of vibration is 2 hours,
Do not occur, without glue phenomenon is fallen, showing that bi-component heat conductive flame-retarding gel has stronger adhesiveness.
The bi-component heat conductive flame-retarding gelling performance parameter cm2 as shown in the table of the present invention
| Project | Performance |
| Thermal conductivity factor W/m.k（20℃） | 2.0-2.4 |
| Density kg/L | 2.3-2.5 |
| Viscosity MPa.s | 4900-5100 |
| Density kg/L | 190-225 |
| Anti-flammability | V-0 |
The bi-component heat conductive flame-retarding gel of the present invention has superior combination property, is compared with one pack system solidification thermally conductive gel, ring
Protect reliably, there is more preferable heat conduction and heat radiation performance, higher product stability；Thermally conductive gel uncured with one pack system and heat conduction
Cream, there is lower oil yield, it is easier to which removing is reprocessed, and product stability is more preferable；Compared with heat conduction casting glue, have more preferable
Cementability, more preferable heat conduction and heat radiation performance, dispensing operation of being more convenient for；Compared with heat-conducting silica gel sheet, there is more preferable cementability, energy
Enough adapt to the heat conduction and heat radiation requirement of irregular device, more preferable production efficiency；Compared with heat conduction silica gel piece, have higher
Heat conduction and heat radiation performance, more preferable hardness controllability, more preferable cementability.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
- A kind of 1. bi-component heat conductive flame-retarding gel, it is characterised in that：The bi-component heat conductive flame-retarding gel includes A glue and B glue：The A glue includes following components in percentage by weight：Organic siliconresin 6-14%Vinyl silicone oil 5-12%Containing hydrogen silicone oil 0.5-1.2%Silane coupler 0.05-0.12%Silica gel inhibitor 0.02-0.1%Aluminum oxide 54-70%Boron nitride 5-10%Fireproof powder surplus；The B glue includes following components in percentage by weight：Organic siliconresin 6-14%Vinyl silicone oil 5-12%Containing hydrogen silicone oil 0.5-1.2%Platinum water 0.8-1.6%Silane coupler 0.05-0.12%Silica gel tackifier 0.12-0.5%Aluminum oxide 54-70%Boron nitride 5-10%Fireproof powder surplus.
- 2. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The mass ratio of the A glue and B glue For：1:0.75-1.25.
- 3. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The aluminum oxide is by following parts by weight Component composition：Ball-aluminium oxide 40-50 parts, irregular aluminum oxide 14-20 parts.
- 4. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The hydrogeneous quality of the containing hydrogen silicone oil Fraction is 0. 16-0.20%.
- 5. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The hydrogeneous quality of the platinum water point Number is 0.4-0.6%, is 4000-6000PPM containing platinum.
- 6. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The silica gel inhibitor is acetenyl Ring ethanol.
- 7. bi-component heat conductive flame-retarding gel according to claim 1, it is characterised in that：The fireproof powder is aluminium hydroxide.
- A kind of 8. preparation method of any described bi-component heat conductive flame-retarding gels of claim 1-6, it is characterised in that:Including with Lower step：（1）A glue and B glue are prepared respectively；（2）The A glue prepared and B glue is individually filling, obtain the bi-component heat conductive flame-retarding gel for including A glue and B glue.
- 9. the preparation method of bi-component heat conductive flame-retarding gel according to claim 7, it is characterised in that：The preparation method of the A glue comprises the following steps：A1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed Material is mediated, and obtains the first compound；A2, containing hydrogen silicone oil and silica gel inhibitor put into the first compound, stir, obtain A glue；A3, by the A glue being stirred and carry out vacuum drawn, vacuum is -0.7~-0.9MPa；A4, the A glue extracted is filled into container；The preparation method of the B glue comprises the following steps：B1, organic siliconresin, vinyl silicone oil, silane coupler, aluminum oxide, boron nitride, fireproof powder are proportionally added into, are mixed Material is mediated, and obtains the first compound；B2, platinum water and silica gel tackifier are put into the second compound, stir, obtain B glue；B3, by the B glue being stirred and carry out vacuum drawn, vacuum is -0.7~-0.9MPa；B4, the B glue extracted is filled into container.
- 10. the application of any bi-component heat conductive flame-retarding gels of claim 1-8, it is characterised in that：Will using spot gluing equipment A, B glue is according to 1:After 0.75-1.25 ratio is well mixed, dispensing is carried out.
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| CN114479466A (en) * | 2021-12-17 | 2022-05-13 | 江阴市鸿萌橡塑制品有限公司 | High-resilience high-wear-resistance peristaltic pump tube and manufacturing method thereof |
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