CN109266130A - A kind of preparation method of conductive coating - Google Patents
A kind of preparation method of conductive coating Download PDFInfo
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- CN109266130A CN109266130A CN201811098744.6A CN201811098744A CN109266130A CN 109266130 A CN109266130 A CN 109266130A CN 201811098744 A CN201811098744 A CN 201811098744A CN 109266130 A CN109266130 A CN 109266130A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- 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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- 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
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- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
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- C—CHEMISTRY; METALLURGY
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
Abstract
The invention discloses a kind of preparation methods of conductive coating, belong to technical field of polymer materials.Coir fibre, Bacillus pasteurii bacterium solution, nutrient solution, water mixed fermentation are then added dropwise copper nitrate solution, are stirred by the present invention, are filtered, dry, charing, and cooling is to get modified coir fibre;Nano metal powder and low-melting alloy 1:5~1:10 in mass ratio heating are melted, metal mixing is obtained;By metal mixing and zeolite 5:1~10:1 mixing and ball milling in mass ratio, then heating melting, liquid nitrogen frozen is crushed, and obtains modified zeolite;According to parts by weight, by 40~60 parts of acrylic resins, 60~80 parts of solvents, 10~20 parts of modified coir fibres, 10~20 parts of modified zeolites, 8~10 parts of curing agent, 3~5 parts of silane coupling agents are stirred to get conductive coating.Conductive coating provided by the invention has excellent electric conductivity.
Description
Technical field
The invention discloses a kind of preparation methods of conductive coating, belong to technical field of polymer materials.
Background technique
In recent decades, conductive coating is in a variety of military, civilian industrial circles such as electronics, electric appliance, aviation, chemical industry, printing
In be applied.With this corresponding, the theoretical research of conductive coating is also rapidly developed, and promote application technology increasingly at
It is ripe with it is perfect.For the electric conductivity of conductive coating, usually there are three types of characterizations: volume resistivity or conductivity;Surface resistivity;
Electrostatic attenuation rate.Intrinsical can be divided into according to application material classification and mix type, intrinsically conducting coating refers to is led with Intrinsical
Electric polymer is conductive coating made by film forming matter.Preparation method of the conducting polymer for conductive coating has focused largely on
Directly using conducting polymer make film-forming resin, conducting polymer and other resins be used in mixed way, conductive polymer material as
Conductive filler uses etc., wherein it is more active that most typical representative, which has polyaniline, polypyrrole, polythiophene, poly quinoline etc.,
A research field.Intrinsically conducting coating is mainly used in anticorrosion and antistatic paint, antiradar coatings, electromagnetic screen coating
Deng, it has been developed that a variety of polyaniline antistatic anticorrosive paints.Doping type conductive coating refers to based on high molecular polymer
Conductive materials are added, using the electric action of conductive materials, to reach coating conductivity in 10-12S/m or more.It, which both has, leads
Electricity Functional, while can be adjusted according to the needs of use in a big way with many excellent characteristics of high molecular polymer again
The electricity and mechanical property of coating, and cost is relatively low, it is simple and easy, thus obtain relatively broad application.Doping type is conductive
Coating is made of high molecular polymer, conductive filler, solvent and auxiliary agent etc..Common conductive filler has metal system filler, carbon system
Filler, metal oxide system filler, compounded mix, novel nano conductive filler etc..Carbon series conductive coating is dosage biggish one
Kind functional paint, has many advantages, such as that at low cost, light, structure is high, nontoxic.Conductive filler master as carbon series conductive coating
There are graphite, graphite fibre, carbon fiber, high-temperature calcination petroleum coke, various carbon blacks and silicon carbide etc..It is especially carbon black filled to lead
Electric polymer has been widely used, and it is excellent that because conductive black has, cheap, density is small, not easily settled, corrosion resistance is strong etc.
Point, but electric conductivity is relatively poor;Simultaneously because a large amount of polar group is contained on surface, there is the disadvantages of difficult dispersion, easily flocculation, most
Simple and effective solution first is that be added dispersing agent reduce carbon black particle between attraction and cohesiveness, thus can
Uniformly and stably it is dispersed in matrix.Carbon series conductive coating is usually made of conductive filler, matrix resin, auxiliary agent and solvent, warp
It is coated on electrical insulator surface of bottom material after mechanical mixture, one layer of special cured film is formed, to generate conductive effect.But
Traditional conductive coating Shortcomings on electric conductivity are reinforced particularly important to the research of the electric conductivity of conductive coating and urgent
It cuts.
Summary of the invention
The present invention solves the technical problem of: it can not further be promoted for the electric conductivity of traditional conductive coating
The problem of, provide a kind of conductive coating.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
(1) according to parts by weight, by 20~30 parts of coir fibres, 3~5 parts of Bacillus pasteurii bacterium solutions, 2~3 portions of nutrient solutions, 30
~50 parts of water mixed fermentations, are then added dropwise copper nitrate solution, are stirred, and filter, dry, charing, and cooling is to get modified coconut husk
Fiber;
(2) nano metal powder and low-melting alloy 1:5~1:10 in mass ratio heating are melted, obtains metal mixing;
(3) by metal mixing and zeolite 5:1~10:1 mixing and ball milling in mass ratio, then heating is melted, and liquid nitrogen frozen crushes, and is obtained
Modified zeolite;
(4) according to parts by weight, by 40~60 parts of acrylic resins, 60~80 parts of solvents, 10~20 parts of modified coir fibres, 10
~20 parts of modified zeolites, 8~10 parts of curing agent, 3~5 parts of silane coupling agents are stirred to get conductive coating.
Step (1) the coir fibre length is 0.11~0.15mm, and diameter is 0.75~1.00 μm.
Step (1) the Bacillus pasteurii bacterium solution is made of the raw material of following parts by weight: 2~3 parts of Pasteur's gemma
Bacillus, 1~2 part of glycerol, 1~2 part of polyethylene glycol, 10~20 parts of deionized waters.
Step (1) described nutrient solution is made of the raw material of following parts by weight: 1~2 part of glucose, 1~2 part of fructose, and 2
~3 parts of urea, 20~30 parts of water.
Step (2) nano metal powder is nano-silver powder, any one in nano zinc powder or nanometer iron powder.
Step (2) low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%
(ω), tin account for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).
Step (4) solvent is ethyl acetate, any one in acetone or n,N-Dimethylformamide.
Step (4) curing agent is Lauxite, in melamine resin or Polyamide-Polyamsne-Epichlorohydrin
Any one.
Step (4) silane coupling agent is silane resin acceptor kh-550, silane coupling agent KH-560 or silane coupling agent
Any one in KH-570.
The beneficial effects of the present invention are:
The present invention is by adding modified coir fibre, and during the preparation process, coir fibre is raw using microorganism through everfermentation first
At enzyme activation coir fibre so that the absorption property of coir fibre gets a promotion, then, by the way that copper nitrate solution is added dropwise, by
It is negatively charged in Bacillus pasteurii cell surface, it can be enriched with positively charged copper ion, so that copper ion is gathered in coconut husk fibre
In dimension, then in carbonization process, coir fibre is carbonized first, generates tar during charing state basic policy, the generation of tar, so that
Interface cohesion between modified coir fibre and matrix resin gets a promotion, so that between modified coir fibre and matrix resin
Contact resistance decline, so that the electric conductivity of system gets a promotion, the simple substance charcoal energy as temperature is gradually increasing, in system
Enough so that copper ion is reduced into elemental copper, in use, the elemental copper in modified coir fibre is obtained with the exudation of tar
To be filled into modified coir fibre and matrix resin instep junction, thus further reduced the contact resistance of system, thus
So that the electric conductivity of system is further promoted.
Specific embodiment
According to parts by weight, by 2~3 parts of Bacillus pasteuriis, 1~2 part of glycerol, 1~2 part of polyethylene glycol, 10~20 parts
Deionized water is placed in No. 1 beaker, and No. 1 beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, in temperature be 30~35
DEG C, under the conditions of revolving speed is 300~500r/min, 40~60min of heating stirring obtains Bacillus pasteurii bacterium solution;In parts by weight
Meter, by 1~2 part of glucose, 1~2 part of fructose, 2~3 parts of urea, 20~30 parts of water are placed in No. 2 beakers, in revolving speed be 300~
Under the conditions of 500r/min, 40~60min is stirred to get nutrient solution;According to parts by weight, by 20~30 parts of coir fibres, 3
~5 parts of Bacillus pasteurii bacterium solutions, 2~3 portions of nutrient solutions, 30~50 parts of water are placed in fermentation cauldron, in temperature be 30~35 DEG C of items
Under part, mixed fermentation 3~5 days, then into fermentation cauldron be added dropwise mass fraction be 5~8% copper nitrate solution, in revolving speed be 300
Under the conditions of~500r/min, after being stirred 40~60min, filtering obtains filter residue, then filter residue is placed in baking oven, in temperature
It is dry to constant weight under the conditions of 105~110 DEG C, dry filter residue is obtained, then dry filter residue is placed in retort, and with 60~
90mL/min rate is filled with nitrogen into furnace, under the conditions of temperature is 850~850 DEG C, after carbonizing 2~3h, is down to room temperature with furnace,
Up to modified coir fibre;Nano metal powder and low-melting alloy 1:5~1:10 in mass ratio are placed in reaction kettle, Yu Wen
Under the conditions of degree is 190~220 DEG C, heating fusing obtains metal mixing;Metal mixing and zeolite 5:1~10:1 in mass ratio are set
The mixing and ball milling in ball mill obtains ball milling material, and then ball milling material is placed in crucible, then heating melting, blend melt, then
Blend melt is placed in liquid nitrogen frozen, obtains frozen block, frozen block is then placed in 40~60min of crushing in pulverizer, obtains modification
Zeolite;According to parts by weight, by 40~60 parts of acrylic resins, 60~80 parts of solvents, 10~20 parts of modified coir fibres, 10~
20 parts of modified zeolites, 8~10 parts of curing agent, 3~5 parts of silane coupling agents are placed in batch mixer, in revolving speed be 300~500r/min
Under the conditions of, 40~60min is stirred to get conductive coating.The coir fibre length is 0.11~0.15mm, diameter
It is 0.75~1.00 μm.The nano metal powder is nano-silver powder, any one in nano zinc powder or nanometer iron powder.It is described
Low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for
8%(ω), indium accounts for 11%(ω).The solvent is ethyl acetate, any one in acetone or n,N-Dimethylformamide.It is described solid
Agent is Lauxite, any one in melamine resin or Polyamide-Polyamsne-Epichlorohydrin.It is described silane coupled
Agent is silane resin acceptor kh-550, any one in silane coupling agent KH-560 or Silane coupling reagent KH-570.
Example 1
According to parts by weight, by 3 parts of Bacillus pasteuriis, 2 parts of glycerol, 2 parts of polyethylene glycol, 20 parts of deionized waters are placed in No. 1 burning
In cup, and No. 1 beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, is 35 DEG C in temperature, revolving speed is 500r/min condition
Under, heating stirring 60min obtains Bacillus pasteurii bacterium solution;According to parts by weight, by 2 parts of glucose, 2 parts of fructose, 3 parts of urea,
30 parts of water are placed in No. 2 beakers, under the conditions of revolving speed is 500r/min, are stirred 60min to get nutrient solution;By weight
Number meter, by 30 parts of coir fibres, 5 parts of Bacillus pasteurii bacterium solutions, 3 portions of nutrient solutions, 50 parts of water are placed in fermentation cauldron, are in temperature
Under the conditions of 35 DEG C, mixed fermentation 5 days, the copper nitrate solution that mass fraction is 8% is then added dropwise into fermentation cauldron, is in revolving speed
Under the conditions of 500r/min, after being stirred 60min, filtering, obtain filter residue, then filter residue be placed in baking oven, in temperature be 110 DEG C
Under the conditions of, it is dry to constant weight, dry filter residue is obtained, then dry filter residue is placed in retort, and with 90mL/min rate to furnace
It is inside filled with nitrogen, under the conditions of temperature is 850 DEG C, after carbonizing 3h, is down to room temperature with furnace to get modified coir fibre;By nanometer
Metal powder and low-melting alloy 1:10 in mass ratio are placed in reaction kettle, and under the conditions of temperature is 220 DEG C, heating fusing is obtained
Metal mixing;Metal mixing and zeolite 10:1 in mass ratio are placed in mixing and ball milling in ball mill, ball milling material is obtained, then by ball milling
Material is placed in crucible, and then blend melt is then placed in liquid nitrogen frozen, obtains frozen block by heating melting, blend melt, then will
Frozen block, which is placed in pulverizer, crushes 60min, obtains modified zeolite;According to parts by weight, by 60 parts of acrylic resins, 80 parts molten
Agent, 20 parts of modified coir fibres, 20 parts of modified zeolites, 10 parts of curing agent, 5 parts of silane coupling agents are placed in batch mixer, in revolving speed
Under the conditions of 500r/min, 60min is stirred to get conductive coating.The coir fibre length is 0.15mm, diameter
It is 0.75 μm.The nano metal powder is nano-silver powder.The low-melting alloy is bismuth tin alloy, each component in bismuth tin alloy
Mass content are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).The solvent is ethyl acetate,
Any one in acetone or N,N-dimethylformamide.The curing agent is Lauxite.The silane coupling agent is that silane is even
Join agent KH-550.
Example 2
Nano metal powder and low-melting alloy 1:10 in mass ratio are placed in reaction kettle, under the conditions of temperature is 220 DEG C, added
Heat fusing, obtains metal mixing;Metal mixing and zeolite 10:1 in mass ratio are placed in mixing and ball milling in ball mill, obtain ball milling material,
Then ball milling material is placed in crucible, then blend melt is then placed in liquid nitrogen frozen, obtained cold by heating melting, blend melt
Freeze block, then frozen block is placed in pulverizer and crushes 60min, obtains modified zeolite;According to parts by weight, by 60 parts of acrylic acid trees
Rouge, 80 parts of solvents, 20 parts of coir fibres, 20 parts of modified zeolites, 10 parts of curing agent, 5 parts of silane coupling agents are placed in batch mixer, in
Under the conditions of revolving speed is 500r/min, 60min is stirred to get conductive coating.The coir fibre length is 0.15mm,
Diameter is 0.75 μm.The nano metal powder is nano-silver powder.The low-melting alloy is bismuth tin alloy, each in bismuth tin alloy
Constituent mass content are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).The solvent is acetic acid
Any one in ethyl ester, acetone or n,N-Dimethylformamide.The curing agent is Lauxite.The silane coupling agent is silicon
Alkane coupling agent KH-550.
Example 3
According to parts by weight, by 3 parts of Bacillus pasteuriis, 2 parts of glycerol, 2 parts of polyethylene glycol, 20 parts of deionized waters are placed in No. 1 burning
In cup, and No. 1 beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, is 35 DEG C in temperature, revolving speed is 500r/min condition
Under, heating stirring 60min obtains Bacillus pasteurii bacterium solution;According to parts by weight, by 2 parts of glucose, 2 parts of fructose, 3 parts of urea,
30 parts of water are placed in No. 2 beakers, under the conditions of revolving speed is 500r/min, are stirred 60min to get nutrient solution;By weight
Number meter, by 30 parts of coir fibres, 5 parts of Bacillus pasteurii bacterium solutions, 3 portions of nutrient solutions, 50 parts of water are placed in fermentation cauldron, are in temperature
Under the conditions of 35 DEG C, mixed fermentation 5 days, the copper nitrate solution that mass fraction is 8% is then added dropwise into fermentation cauldron, is in revolving speed
Under the conditions of 500r/min, after being stirred 60min, filtering, obtain filter residue, then filter residue be placed in baking oven, in temperature be 110 DEG C
Under the conditions of, it is dry to constant weight, dry filter residue is obtained, then dry filter residue is placed in retort, and with 90mL/min rate to furnace
It is inside filled with nitrogen, under the conditions of temperature is 850 DEG C, after carbonizing 3h, is down to room temperature with furnace to get modified coir fibre;By weight
Number meter, by 60 parts of acrylic resins, 80 parts of solvents, 20 parts of modified coir fibres, 10 parts of curing agent, 5 parts of silane coupling agents are set
In batch mixer, under the conditions of revolving speed is 500r/min, 60min is stirred to get conductive coating.The coir fibre
Length is 0.15mm, and diameter is 0.75 μm.The nano metal powder is nano-silver powder.The low-melting alloy is the conjunction of bismuth tin
Gold, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).
The solvent is ethyl acetate, any one in acetone or n,N-Dimethylformamide.The curing agent is Lauxite.It is described
Silane coupling agent is silane resin acceptor kh-550.
Comparative example: the conductive coating of Science and Technology Ltd. of Shenzhen production.
Example 1 to the resulting conductive coating of example 3 and comparative example product are subjected to performance detection, specific detection method is such as
Under:
Electric conductivity: the resistivity of conductive coating is detected according to GB/T 26004.
Specific testing result is as shown in table 1:
1 Conductive Paints testing result of table
Detection project | Example 1 | Example 2 | Example 3 | Comparative example |
Resistivity/× 10-4Ω·cm | 0.32 | 0.55 | 0.68 | 0.95 |
By 1 testing result of table it is found that the conductive coating of technical solution of the present invention preparation has the characteristics that excellent electric conductivity,
It has broad prospects in the development of high polymer material technology industry.
Claims (9)
1. a kind of preparation method of conductive coating, it is characterised in that specific preparation process is as follows:
(1) according to parts by weight, by 20 ~ 30 parts of coir fibres, 3 ~ 5 parts of Bacillus pasteurii bacterium solutions, 2 ~ 3 portions of nutrient solutions, 30 ~ 50
Part water mixed fermentation, is then added dropwise copper nitrate solution, is stirred, and filters, dry, charing, and cooling is fine to get coconut husk is modified
Dimension;
(2) nano metal powder and low-melting alloy 1:5 ~ 1:10 in mass ratio heating are melted, obtains metal mixing;
(3) by metal mixing and zeolite 5:1 ~ 10:1 mixing and ball milling in mass ratio, then heating is melted, and liquid nitrogen frozen crushes, and is obtained
Modified zeolite;
(4) according to parts by weight, by 40 ~ 60 parts of acrylic resins, 60 ~ 80 parts of solvents, 10 ~ 20 parts of modified coir fibres, 10 ~ 20
Part modified zeolite, 8 ~ 10 parts of curing agent, 3 ~ 5 parts of silane coupling agents are stirred to get conductive coating.
2. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (1) coconut husk
Fibre length is 0.11~0.15mm, and diameter is 0.75~1.00 μm.
3. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (1) Pasteur's gemma
Bacillus bacterium solution is made of the raw material of following parts by weight: 2 ~ 3 parts of Bacillus pasteuriis, 1 ~ 2 part of glycerol, 1 ~ 2 part of polyethylene glycol,
10 ~ 20 parts of deionized waters.
4. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (1) described nutrient solution is
It is made of the raw material of following parts by weight: 1 ~ 2 part of glucose, 1 ~ 2 part of fructose, 2 ~ 3 parts of urea, 20 ~ 30 parts of water.
5. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (2) described nano metal
Powder is nano-silver powder, any one in nano zinc powder or nanometer iron powder.
6. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (2) low melting point is closed
Gold is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%(ω), indium
Account for 11%(ω).
7. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (4) solvent is second
Any one in acetoacetic ester, acetone or n,N-Dimethylformamide.
8. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (4) described curing agent is
Any one in Lauxite, melamine resin or Polyamide-Polyamsne-Epichlorohydrin.
9. a kind of preparation method of conductive coating according to claim 1, it is characterised in that: step (4) is described silane coupled
Agent is silane resin acceptor kh-550, any one in silane coupling agent KH-560 or Silane coupling reagent KH-570.
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CN109971044A (en) * | 2019-02-25 | 2019-07-05 | 黄智慧 | A kind of electromagnetic shielding preparation method of composite conductive rubber |
CN110144188A (en) * | 2019-05-30 | 2019-08-20 | 刘勇 | A kind of microelectronics Packaging epoxy resin-matrix conducting resinl |
CN114316842A (en) * | 2022-01-13 | 2022-04-12 | 东莞市刚刚好玩具有限公司 | Spray glue for handheld model and preparation method and spray process thereof |
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CN110144188A (en) * | 2019-05-30 | 2019-08-20 | 刘勇 | A kind of microelectronics Packaging epoxy resin-matrix conducting resinl |
CN114316842A (en) * | 2022-01-13 | 2022-04-12 | 东莞市刚刚好玩具有限公司 | Spray glue for handheld model and preparation method and spray process thereof |
CN114316842B (en) * | 2022-01-13 | 2023-05-26 | 东莞市刚刚好玩具有限公司 | Spraying adhesive for hand models, preparation method thereof and spraying process |
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