CN108977008A - A kind of thermally conductive anti-spread coated paint - Google Patents
A kind of thermally conductive anti-spread coated paint Download PDFInfo
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- CN108977008A CN108977008A CN201810943371.1A CN201810943371A CN108977008A CN 108977008 A CN108977008 A CN 108977008A CN 201810943371 A CN201810943371 A CN 201810943371A CN 108977008 A CN108977008 A CN 108977008A
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions 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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention discloses a kind of thermally conductive anti-spread coated paints, belong to technical field of polymer materials.According to parts by weight, it successively weighs: 40~50 parts of silicone modified polyester resins, 5~6 parts of amino resins, 4~5 parts of glass powder with low melting point, 8~15 parts of dispersant B YK180,8~16 parts of coalescing agents, 50~65 parts of mixed solvents, 15~25 parts of modified fillers and 12~20 parts of additives；Silicone modified polyester resin is mixed with amino resins, obtain thermally conductive anti-spread coated paint blank, glass powder with low melting point is mixed with coalescing agent, obtain mixture, thermally conductive anti-spread coated paint blank is mixed with mixture, is 35~48 DEG C in temperature, revolving speed is under conditions of 300~400r/min, after being stirred 30~60min, thermally conductive anti-spread coated paint is obtained.The thermally conductive anti-spread coated paint of gained of the invention has excellent heating conduction and scratch resistant performance.
Description
Technical field
The invention discloses a kind of thermally conductive anti-spread coated paints, belong to technical field of polymer materials.
Background technique
Heat exchanger is the equipment for carrying out heat exchange to cold fluid and hot fluid, and the power for carrying out heat exchange is existing for cold fluid and hot fluid
Temperature difference, heat pass to the low fluid of temperature through the heat exchange tube wall of heat exchanger from the high fluid of temperature, and two fluids only carries out
The exchange of quality may be not present in the exchange of heat, is chemical engineering industry, petroleum industry, power industry, food-processing industry and other
The common apparatus of many industrial departments.Heat exchanger general applicability as existing for it and occupy in field of industrial production important
Status, according to statistics, the investment cost of heat exchanger accounts for about 10%~40% of gross investment or so in general chemical plant, and in oil plant
In, investment cost proportion height to 35%~40%, and then almost all is made of desalination process device heat exchanger.By
In heat exchanger in field of industrial production, economy and reliability to product quality, capacity usage ratio and system play important
Effect, be rapidly developed in nearly more than two decades, various types of high efficiency heat exchanger emerges one after another.But by
It is complex in the use environment of heat exchanger, such as various hot environments, acidic environment, dusty gas environment, so that heat exchanger
Occur the various problems such as high temperature corrosion, acid etching, abrasion in use, heat-conductive heat-exchanger is destroyed, to influence to change
The heat exchange efficiency of hot device shortens the service life of heat exchanger, and therefore, the etching problem for how solving heat exchanger early has become everybody
The common research topic of researcher, and effective heat exchanger anticorrosive measure can undoubtedly bring huge economic benefit.
To guarantee that the coating of anticorrosive coating has enough adhesive force, corrosion resistance and mechanical performance to substrate, apply
Matrix resin in material component must occupy certain proportion, and general matrix resin is mostly insulation or low thermally conductive organic polymer
Object, therefore common erosion shield, have negative effect to thermal conductivity.The research of heat-conductive coating, such as Leivo are ground now
Study carefully discovery, by having the filler grain of high thermal conductivity coefficient to polymer addition, the thermal coefficient of polymer can be increased；And Lu
The study found that the BN and silicone material after compound are the coatings with high heat dispersion and insulation performance, it can be used as electrical material
Material；After Fukushima H etc. is the study found that be added nylon material for nano graphite flakes, the thermal coefficient of composite nylon material with
Be added nano graphite flakes content increase and increase, when graphite addition content be total volume 20% when, nylon material
Thermal coefficient is nearly 10 times of nylon material thermal coefficient for being not added with graphite flake.Coating heat transfer performance traditional at present is not
Good, scratch resistant performance can not further increase, and also need to study it.
Summary of the invention
The present invention solves the technical problem of: bad for the scratch resistant coating heat transfer performance of tradition, scratch resistant performance can not
The problem of further increasing provides a kind of thermally conductive anti-spread coated paint.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of thermally conductive anti-spread coated paint, is made of the raw material of following parts by weight: 40~50 parts of silicone modified polyester resins, and 5
~6 parts of amino resins, 4~5 parts of glass powder with low melting point, 8~15 parts of dispersant B YK180,8~16 parts of coalescing agents and 50~65
Part mixed solvent；The thermally conductive anti-spread coated paint further include: 15~25 parts of modified fillers and 12~20 parts of additives；
The modified filler the preparation method comprises the following steps:
Bismuth meal is mixed with lead powder 2.5:1.0 in mass ratio, and 1.5~1.6 times of lead powder quality of glass putty and lead powder quality is added
200~350 times of atoleine obtains atoleine mixture after high-temperature stirring reaction, after the cooling of atoleine mixture,
0.0004~0.0010 times of atoleine mixture quality of stearic acid is added, after being stirred, is cooled to room temperature, it is mixed to obtain alloy
Blank is closed, after the centrifuge separation of alloy mixing blank, supernatant liquor is removed, obtains pretreatment modification filler blank, pretreatment is changed
Property filler blank mixed with chloroform 50:1~50:5 in mass ratio, ultrasonic disperse is centrifugated, and is filtered, dry, obtains modified filler
Blank mixes modified filler blank with ethyl alcohol 1:10~1:20 in mass ratio, and be added modified filler blank quality 0.5~
0.8 times of silane coupling agent after being stirred, filters, dry, obtains modified filler；
The additive the preparation method comprises the following steps:
Graphene oxide-carboxyl carbon nanotube mixture pH to 8~9 is adjusted, and graphene oxide-carboxyl carbon nanotube is added
The polyethylene polyamine that 0.2~0.3 times of mixture quality, after being stirred, ultrasonic disperse obtains preconditioned mixture, will pre-process
Mixture is mixed with glucose β lactones aqueous solution 30:1~30:3 in mass ratio, and after being stirred, ultrasonic disperse is stood, mistake
Filter, washing, dry, pulverize, obtain additive blank, additive blank and low-melting alloy 1:10~1:15 in mass ratio are mixed
It closes, after being heated to low-melting alloy fusing, is stirred, filters, freezing obtains additive.
The coalescing agent be talcum powder is mixed with mica powder 2:1 in mass ratio, and be added talcum powder quality 0.7~
0.8 times of aluminium triphosphate after being stirred, obtains coalescing agent.
The mixed solvent is that by dimethylbenzene, 1:2~1:1 is mixed in molar ratio with butyl acetate, and diformazan benzene mole is added
0.3~0.6 times of glycol methyl ether acetate, is stirred, obtains mixed solvent.
The silane coupling agent is silane resin acceptor kh-550, in silane coupling agent KH-560 or Silane coupling reagent KH-570
Any one.
The polyethylene polyamine is triethylene tetramine, any one in diethylenetriamine or ethylenediamine.
The low-melting alloy is lead bismuth alloy, and wherein the mass fraction of bismuth is 53%, and the mass fraction of lead is 32%, tin
Mass fraction is 15%.
The graphene oxide-carboxyl carbon nanotube mixture is by graphene oxide and water 1:250~1 in mass ratio:
300 mixing, and 2~3 times of graphene oxide quality of carboxyl carbon nanotube is added, after being stirred, ultrasonic disperse obtains oxidation stone
Black alkene-carboxyl carbon nanotube mixture.
The beneficial effects of the present invention are:
(1) modified filler is added when preparing thermally conductive anti-spread coated paint by the present invention, firstly, modified filler is low-melting alloy, is adding
It after entering in product, can be uniformly distributed in product when product is by heat cure, to make the thermal conductivity of product improve, secondly, changing
Property filler in low-melting alloy be nanoparticle structure, be added product in after, newborn male structure can be formed in product surface, thus
Make product that there is good scratch resistant performance；
(2) additive is added when preparing thermally conductive anti-spread coated paint by the present invention, on the one hand, contains graphene oxide and carbon in additive
Nanotube can be such that the heating conduction of product further increases, also, due to the lamella of graphene oxide after being added in product
Structure can protect product surface after being added in product, and then improve the scratch resistant performance of product, on the other hand, add
Add graphene oxide and carbon nanotube in agent that can form three-dimensional net structure with polyethylene polyamine, to be formed in the product certain
Network path, after product is scraped, low-melting alloy can fuses when heated again, and by network path at scratch into
Row repairing, and then improve the scratch resistant performance of product.
Specific embodiment
Bismuth meal and lead powder 2.5:1.0 in mass ratio are mixed in three-necked flask, and lead powder matter is added into three-necked flask
Measure 1.5~1.6 times of glass putty and 200~350 times of lead powder quality of atoleine, in temperature be 300~350 DEG C, revolving speed 200
Under conditions of~300r/min, after being stirred to react 10~12min, atoleine mixture is obtained, atoleine mixture is cooled down
To 150 DEG C, and after 60~70min of constant temperature holding, atoleine mixture quality is added into atoleine mixture drop
0.0004~0.0010 times of stearic acid is 180~185 DEG C in temperature, under conditions of revolving speed is 400~600r/min, stirs
After mixing 8~9h, be cooled to room temperature, obtain alloy mixing blank, by alloy mixing blank in revolving speed be 3000~4000r/min
Under the conditions of be centrifugated 5~10min after, remove supernatant liquor, pretreatment modification filler blank is obtained, by pretreatment modification filler base
Material is mixed with chloroform 50:1~50:5 in mass ratio, under conditions of frequency is 45~65kHz after 5~10min of ultrasonic disperse, from
Heart separation, filtering obtain modified filler blank, and modified filler blank and ethyl alcohol 1:10~1:20 in mass ratio are mixed in beaker
In, and into beaker be added 0.5~0.8 times of modified filler blank quality silane coupling agent, in temperature be 45~65 DEG C, revolving speed
Under conditions of 300~380r/min, after being stirred 2~3h, filtering obtains filter cake, by filter cake in temperature be 50~60 DEG C
Under the conditions of after dry 2~3h, obtain modified filler；Graphene oxide-is adjusted with the sodium hydroxide solution that mass fraction is 8~15%
The pH to 8~9 of carboxyl carbon nanotube mixture, and graphite oxide is added into graphene oxide-carboxyl carbon nanotube mixture
Alkene -0.2~0.3 times of carboxyl carbon nanotube mixture quality polyethylene polyamine, in temperature be 45~55 DEG C, revolving speed be 300~
Under conditions of 400r/min, after being stirred 40~60min, and in frequency be 45~55kHz under conditions of ultrasonic disperse 20~
After 30min, preconditioned mixture is obtained, the glucose β lactones aqueous solution that preconditioned mixture is 10~15% with mass fraction is pressed
Mass ratio 30:1~30:3 mixing is 35~45 DEG C in temperature, under conditions of revolving speed is 300~400r/min, is stirred 30
After~60min, and under conditions of frequency is 45~55kHz after 20~30min of ultrasonic disperse, in stand 24 under room temperature~
After 25h, filtering obtains pretreatment additive blank, after pretreatment additive blank is washed with water 8~12 times, freeze-drying 40
~50h is crushed, is obtained additive blank, additive blank is mixed with low-melting alloy 1:10~1:15 in mass ratio, is heated to
After low-melting alloy fusing, after being stirred 10~20min under conditions of revolving speed is 300~500r/min, filtering obtains pre- place
Additive is managed, after freezing 1~2h under conditions of being 0~3 DEG C in temperature by pretreatment additive, obtains additive；In parts by weight
Meter, successively weighs: 40~50 parts of silicone modified polyester resins, 5~6 parts of amino resins, 4~5 parts of glass powder with low melting point, 8~
15 parts of dispersant B YK180,8~16 parts of coalescing agents, 50~65 parts of mixed solvents, 15~25 parts of modified fillers and 12~20 parts
Additive；Silicone modified polyester resin and amino resins are mixed in blender, and dispersing agent is added into blender
BYK180 and mixed solvent are 45~55 DEG C in temperature, under conditions of revolving speed is 300~350r/min, it is stirred 30~
After 60min, thermally conductive anti-spread coated paint blank is obtained, glass powder with low melting point and coalescing agent are mixed in batch mixer, and to batch mixer
Middle addition modified filler and additive are 30~40 DEG C in temperature, under conditions of revolving speed is 300~600r/min, are stirred
After 20~40min, mixture is obtained, thermally conductive anti-spread coated paint blank is mixed with mixture, is 35~48 DEG C in temperature, revolving speed is
Under conditions of 300~400r/min, after being stirred 30~60min, thermally conductive anti-spread coated paint is obtained.The coalescing agent is by talcum
Powder is mixed with mica powder 2:1 in mass ratio, and 0.7~0.8 times of talcum powder quality of aluminium triphosphate is added, after being stirred,
Obtain coalescing agent.The mixed solvent is that by dimethylbenzene, 1:2~1:1 is mixed in molar ratio with butyl acetate, and dimethylbenzene is added
Mole 0.3~0.6 times of glycol methyl ether acetate, is stirred, obtains mixed solvent.The silane coupling agent is silane coupling agent
Any one in KH-550, silane coupling agent KH-560 or Silane coupling reagent KH-570.The polyethylene polyamine is triethylene four
Any one in amine, diethylenetriamine or ethylenediamine.The low-melting alloy is lead bismuth alloy, and wherein the mass fraction of bismuth is
53%, the mass fraction of lead is 32%, and the mass fraction of tin is 15%.The graphene oxide-carboxyl carbon nanotube mixture is will
Graphene oxide is mixed with water 1:250~1:300 in mass ratio, and 2~3 times of graphene oxide quality of carboxyl carbon nanometer is added
Pipe, after being stirred, ultrasonic disperse obtains graphene oxide-carboxyl carbon nanotube mixture.
Bismuth meal and lead powder 2.5:1.0 in mass ratio are mixed in three-necked flask, and lead powder matter is added into three-necked flask
Measure 1.6 times of glass putty and 350 times of lead powder quality of atoleine, in temperature be 350 DEG C, under conditions of revolving speed is 300r/min,
After being stirred to react 12min, atoleine mixture is obtained, atoleine mixture is cooled to 150 DEG C, and constant temperature keeps 70min
Afterwards, 0.0010 times of atoleine mixture quality of stearic acid is added into atoleine mixture drop, in temperature be 185 DEG C,
Under conditions of revolving speed is 600r/min, after being stirred 9h, it is cooled to room temperature, obtains alloy mixing blank, by alloy mixing blank
After being centrifugated 10min under conditions of revolving speed is 4000r/min, supernatant liquor is removed, pretreatment modification filler blank is obtained, it will
Pretreatment modification filler blank is mixed with chloroform 50:5 in mass ratio, the ultrasonic disperse 10min under conditions of frequency is 65kHz
Afterwards, it being centrifugated, filtering obtains modified filler blank, modified filler blank and ethyl alcohol 1:20 in mass ratio is mixed in beaker,
And the silane coupling agent of 0.8 times of modified filler blank quality is added into beaker, it is 65 DEG C in temperature, revolving speed is 380r/min's
Under the conditions of, after being stirred 3h, filtering obtains filter cake, under conditions of being 60 DEG C in temperature by filter cake after dry 3h, must be modified and fill out
Material；The sodium hydroxide solution adjusting graphene oxide-carboxyl carbon nanotube mixture pH to 9 for being 15% with mass fraction, and to
It is more that graphene oxide -0.3 times of carboxyl carbon nanotube mixture quality is added in graphene oxide-carboxyl carbon nanotube mixture
Ethylene polyamine, in temperature be 55 DEG C, revolving speed be 400r/min under conditions of, after being stirred 60min, and in frequency be 55kHz
Under conditions of after ultrasonic disperse 30min, obtain preconditioned mixture, the glucose β for being 15% by preconditioned mixture and mass fraction
Lactones aqueous solution 30:3 in mass ratio mixing is 45 DEG C in temperature, under conditions of revolving speed is 400r/min, is stirred 60min
Afterwards, and under conditions of frequency is 55kHz it after ultrasonic disperse 30min, after standing 25h under room temperature, filters, must pre-process
Additive blank after pretreatment additive blank is washed with water 12 times, is freeze-dried 50h, crushes, obtain additive blank, will
Additive blank is mixed with low-melting alloy 1:15 in mass ratio, be heated to low-melting alloy fusing after, in revolving speed be 500r/
After being stirred 20min under conditions of min, filtering obtains pretreatment additive, the item for being 3 DEG C in temperature by pretreatment additive
After freezing 2h under part, additive is obtained；According to parts by weight, it successively weighs: 50 parts of silicone modified polyester resins, 6 parts of amino trees
Rouge, 5 parts of glass powder with low melting point, 15 parts of dispersant B YK180,16 parts of coalescing agents, 65 parts of mixed solvents, 25 parts of modified fillers and
20 parts of additives；Silicone modified polyester resin and amino resins are mixed in blender, and dispersion is added into blender
Agent BYK180 and mixed solvent are 55 DEG C in temperature, under conditions of revolving speed is 350r/min, after being stirred 60min, obtain thermally conductive
Glass powder with low melting point and coalescing agent are mixed in batch mixer, and modified filler are added into batch mixer by anti-spread coated paint blank
And additive, it is 40 DEG C in temperature, under conditions of revolving speed is 600r/min, after being stirred 40min, obtains mixture, it will be thermally conductive
Anti- spread coated paint blank is mixed with mixture, in temperature be 48 DEG C, revolving speed be 400r/min under conditions of, after being stirred 60min,
Obtain thermally conductive anti-spread coated paint.The coalescing agent is to mix talcum powder with mica powder 2:1 in mass ratio, and talcum powder quality is added
0.8 times of aluminium triphosphate after being stirred, obtains coalescing agent.The mixed solvent is to massage dimethylbenzene and butyl acetate
You mix than 1:1, and 0.6 times of diformazan benzene mole of glycol methyl ether acetate is added, and are stirred, obtain mixed solvent.The silicon
Alkane coupling agent is silane resin acceptor kh-550.The polyethylene polyamine is triethylene tetramine.The low-melting alloy is the conjunction of lead bismuth
Gold, wherein the mass fraction of bismuth is 53%, and the mass fraction of lead is 32%, and the mass fraction of tin is 15%.The graphene oxide-
Carboxyl carbon nanotube mixture is to mix graphene oxide with water 1:300 in mass ratio, and be added 3 times of graphene oxide quality
Carboxyl carbon nanotube, after being stirred, ultrasonic disperse obtains graphene oxide-carboxyl carbon nanotube mixture.
With mass fraction be 15% sodium hydroxide solution adjust graphene oxide-carboxyl carbon nanotube mixture pH to
9, and graphene oxide-carboxyl carbon nanotube mixture quality 0.3 is added into graphene oxide-carboxyl carbon nanotube mixture
Times polyethylene polyamine, be 55 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 60min, and in frequency be
Under conditions of 55kHz after ultrasonic disperse 30min, preconditioned mixture is obtained, the Portugal for being 15% by preconditioned mixture and mass fraction
Grape sugar β lactones aqueous solution 30:3 in mass ratio mixing is 45 DEG C in temperature, under conditions of revolving speed is 400r/min, is stirred
After 60min, and under conditions of frequency is 55kHz after ultrasonic disperse 30min, after standing 25h under room temperature, filtering is obtained
Pretreatment additive blank after pretreatment additive blank is washed with water 12 times, is freeze-dried 50h, crushes, obtain additive base
Material, additive blank is mixed with low-melting alloy 1:15 in mass ratio, after being heated to low-melting alloy fusing, is in revolving speed
After being stirred 20min under conditions of 500r/min, filtering, obtain pretreatment additive, by pretreatment additive in temperature be 3 DEG C
Under conditions of freeze 2h after, obtain additive；According to parts by weight, it successively weighs: 50 parts of silicone modified polyester resins, 6 parts of ammonia
Base resin, 5 parts of glass powder with low melting point, 15 parts of dispersant B YK180,16 parts of coalescing agents, 65 parts of mixed solvents and 20 parts of additions
Agent；Silicone modified polyester resin and amino resins are mixed in blender, and dispersant B YK180 is added into blender
And mixed solvent, it is 55 DEG C in temperature, under conditions of revolving speed is 350r/min, after being stirred 60min, obtains thermally conductive anti-spread coated paint
Glass powder with low melting point and coalescing agent are mixed in batch mixer, and additive are added into batch mixer by blank, in temperature be 40
DEG C, under conditions of revolving speed is 600r/min, after being stirred 40min, mixture is obtained, by thermally conductive anti-spread coated paint blank and mixture
Mixing is 48 DEG C in temperature, under conditions of revolving speed is 400r/min, after being stirred 60min, obtains thermally conductive anti-spread coated paint.It is described
Coalescing agent is to mix talcum powder with mica powder 2:1 in mass ratio, and 0.8 times of talcum powder quality of aluminium triphosphate is added,
After being stirred, coalescing agent is obtained.The mixed solvent is that by dimethylbenzene, 1:1 is mixed in molar ratio with butyl acetate, and is added
0.6 times of diformazan benzene mole of glycol methyl ether acetate, is stirred, obtains mixed solvent.The silane coupling agent is silane coupled
Agent KH-550.The polyethylene polyamine is triethylene tetramine.The low-melting alloy is lead bismuth alloy, wherein the mass fraction of bismuth
It is 53%, the mass fraction of lead is 32%, and the mass fraction of tin is 15%.The graphene oxide-carboxyl carbon nanotube mixture is
Graphene oxide is mixed with water 1:300 in mass ratio, and 3 times of graphene oxide quality of carboxyl carbon nanotube is added, is stirred
After mixing, ultrasonic disperse obtains graphene oxide-carboxyl carbon nanotube mixture.
Bismuth meal and lead powder 2.5:1.0 in mass ratio are mixed in three-necked flask, and lead powder matter is added into three-necked flask
Measure 1.6 times of glass putty and 350 times of lead powder quality of atoleine, in temperature be 350 DEG C, under conditions of revolving speed is 300r/min,
After being stirred to react 12min, atoleine mixture is obtained, atoleine mixture is cooled to 150 DEG C, and constant temperature keeps 70min
Afterwards, 0.0010 times of atoleine mixture quality of stearic acid is added into atoleine mixture drop, in temperature be 185 DEG C,
Under conditions of revolving speed is 600r/min, after being stirred 9h, it is cooled to room temperature, obtains alloy mixing blank, by alloy mixing blank
After being centrifugated 10min under conditions of revolving speed is 4000r/min, supernatant liquor is removed, pretreatment modification filler blank is obtained, it will
Pretreatment modification filler blank is mixed with chloroform 50:5 in mass ratio, the ultrasonic disperse 10min under conditions of frequency is 65kHz
Afterwards, it being centrifugated, filtering obtains modified filler blank, modified filler blank and ethyl alcohol 1:20 in mass ratio is mixed in beaker,
And the silane coupling agent of 0.8 times of modified filler blank quality is added into beaker, it is 65 DEG C in temperature, revolving speed is 380r/min's
Under the conditions of, after being stirred 3h, filtering obtains filter cake, under conditions of being 60 DEG C in temperature by filter cake after dry 3h, must be modified and fill out
Material；According to parts by weight, it successively weighs: 50 parts of silicone modified polyester resins, 6 parts of amino resins, 5 parts of glass powder with low melting point,
15 parts of dispersant B YK180,16 parts of coalescing agents, 65 parts of mixed solvents, 25 parts of modified fillers；By silicone modified polyester resin
Be mixed in blender with amino resins, and dispersant B YK180 and mixed solvent be added into blender, in temperature be 55 DEG C,
Revolving speed be 350r/min under conditions of, after being stirred 60min, obtain thermally conductive anti-spread coated paint blank, by glass powder with low melting point at
Film auxiliary agent is mixed in batch mixer, and modified filler is added into batch mixer, is 40 DEG C in temperature, revolving speed is the item of 600r/min
Under part, after being stirred 40min, mixture is obtained, thermally conductive anti-spread coated paint blank is mixed with mixture, is 48 DEG C in temperature, turns
Under conditions of speed is 400r/min, after being stirred 60min, thermally conductive anti-spread coated paint is obtained.The coalescing agent be by talcum powder with
Mica powder 2:1 in mass ratio mixing, and 0.8 times of talcum powder quality of aluminium triphosphate is added, after being stirred, obtains film forming and help
Agent.The mixed solvent is that by dimethylbenzene, 1:1 is mixed in molar ratio with butyl acetate, and is added the two of 0.6 times of diformazan benzene mole
Alcohol methyl ether acetate, is stirred, and obtains mixed solvent.The silane coupling agent is silane resin acceptor kh-550.More ethylene
Polyamines is triethylene tetramine.The low-melting alloy is lead bismuth alloy, and wherein the mass fraction of bismuth is 53%, the mass fraction of lead
It is 32%, the mass fraction of tin is 15%.The graphene oxide-carboxyl carbon nanotube mixture is to press graphene oxide and water
Mass ratio 1:300 mixing, and 3 times of graphene oxide quality of carboxyl carbon nanotube is added, after being stirred, ultrasonic disperse is obtained
Graphene oxide-carboxyl carbon nanotube mixture.
Comparative example: the anti-spread coated paint of Shanghai new material Co., Ltd production.
The anti-spread coated paint of 1 to 3 gained of example and comparative example product are subjected to performance detection, the specific detection method is as follows:
Thermal coefficient is detected according to ASTM E1461；Above-mentioned coating institute is carried out at paint film with identical power and contact angle scratch resistant
Test, and observe surface of the paint film feature.Specific testing result is as shown in table 1:
Table 1: performance detection table
By 1 testing result of table it is found that the thermally conductive anti-spread coated paint of present invention gained has excellent heating conduction and scratch resistant performance.
Claims (7)
1. a kind of thermally conductive anti-spread coated paint, is made of the raw material of following parts by weight: 40~50 parts of silicone modified polyester resins,
5~6 parts of amino resins, 4~5 parts of glass powder with low melting point, 8~15 parts of dispersant B YK180,8~16 parts of coalescing agents and 50~65
Part mixed solvent；It is characterized by: the thermally conductive anti-spread coated paint further include: 15~25 parts of modified fillers and 12~20 parts of additions
Agent；
The modified filler the preparation method comprises the following steps:
Bismuth meal is mixed with lead powder 2.5:1.0 in mass ratio, and 1.5~1.6 times of lead powder quality of glass putty and lead powder quality is added
200~350 times of atoleine obtains atoleine mixture after high-temperature stirring reaction, after the cooling of atoleine mixture,
0.0004~0.0010 times of atoleine mixture quality of stearic acid is added, after being stirred, is cooled to room temperature, it is mixed to obtain alloy
Blank is closed, after the centrifuge separation of alloy mixing blank, supernatant liquor is removed, obtains pretreatment modification filler blank, pretreatment is changed
Property filler blank mixed with chloroform 50:1~50:5 in mass ratio, ultrasonic disperse is centrifugated, and is filtered, dry, obtains modified filler
Blank mixes modified filler blank with ethyl alcohol 1:10~1:20 in mass ratio, and be added modified filler blank quality 0.5~
0.8 times of silane coupling agent after being stirred, filters, dry, obtains modified filler；
The additive the preparation method comprises the following steps:
Graphene oxide-carboxyl carbon nanotube mixture pH to 8~9 is adjusted, and graphene oxide-carboxyl carbon nanotube is added
The polyethylene polyamine that 0.2~0.3 times of mixture quality, after being stirred, ultrasonic disperse obtains preconditioned mixture, will pre-process
Mixture is mixed with glucose β lactones aqueous solution 30:1~30:3 in mass ratio, and after being stirred, ultrasonic disperse is stood, mistake
Filter, washing, dry, pulverize, obtain additive blank, additive blank and low-melting alloy 1:10~1:15 in mass ratio are mixed
It closes, after being heated to low-melting alloy fusing, is stirred, filters, freezing obtains additive.
2. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the coalescing agent be by talcum powder with
Mica powder 2:1 in mass ratio mixing, and the aluminium triphosphate for being added 0.7~0.8 times of talcum powder quality is obtained into after being stirred
Film auxiliary agent.
3. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the mixed solvent be by dimethylbenzene with
1:2~1:1 is mixed butyl acetate in molar ratio, and 0.3~0.6 times of diformazan benzene mole of glycol methyl ether acetate is added, stirring
Mixing, obtains mixed solvent.
4. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the silane coupling agent is silane coupled
Any one in agent KH-550, silane coupling agent KH-560 or Silane coupling reagent KH-570.
5. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the polyethylene polyamine is triethylene four
Any one in amine, diethylenetriamine or ethylenediamine.
6. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the low-melting alloy is the conjunction of lead bismuth
Gold, wherein the mass fraction of bismuth is 53%, and the mass fraction of lead is 32%, and the mass fraction of tin is 15%.
7. the thermally conductive anti-spread coated paint of one kind according to claim 1, it is characterised in that: the graphene oxide-carboxyl carbon is received
Nanotube mixture is to mix graphene oxide with water 1:250~1:300 in mass ratio, and graphene oxide quality 2~3 is added
Carboxyl carbon nanotube again, after being stirred, ultrasonic disperse obtains graphene oxide-carboxyl carbon nanotube mixture.
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| CN108329830A (en) * | 2018-02-01 | 2018-07-27 | 云南中宣液态金属科技有限公司 | A kind of high heat conduction composite heat interfacial material and preparation method thereof |
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| CN101935498A (en) * | 2010-09-25 | 2011-01-05 | 江门市制漆厂有限公司 | Heat-resisting organic silicon antiseptic inner tank coating |
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| WO2013086814A1 (en) * | 2011-12-16 | 2013-06-20 | 新高电子材料（中山）有限公司 | Weather-resistant coating with high thermal conductivity, heat-dissipating solar back sheet, and highly efficient solar cell panel |
| CN108329830A (en) * | 2018-02-01 | 2018-07-27 | 云南中宣液态金属科技有限公司 | A kind of high heat conduction composite heat interfacial material and preparation method thereof |
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Application publication date: 20181211 |