CN115386215A - Preparation method of high-toughness conductive polymer composite material - Google Patents
Preparation method of high-toughness conductive polymer composite material Download PDFInfo
- Publication number
- CN115386215A CN115386215A CN202211353745.7A CN202211353745A CN115386215A CN 115386215 A CN115386215 A CN 115386215A CN 202211353745 A CN202211353745 A CN 202211353745A CN 115386215 A CN115386215 A CN 115386215A
- Authority
- CN
- China
- Prior art keywords
- polycarbonate
- conductive
- composite material
- toughness
- polymer composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 229920001940 conductive polymer Polymers 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004417 polycarbonate Substances 0.000 claims abstract description 215
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 215
- 239000011231 conductive filler Substances 0.000 claims abstract description 29
- 239000007822 coupling agent Substances 0.000 claims abstract description 23
- 239000012745 toughening agent Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 13
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 28
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- IISBACLAFKSPIT-UHFFFAOYSA-N Bisphenol A Natural products C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 239000010936 titanium Substances 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000002079 double walled nanotube Substances 0.000 claims description 12
- 239000002048 multi walled nanotube Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 7
- 230000003179 granulation Effects 0.000 claims description 7
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 83
- 239000002245 particle Substances 0.000 description 73
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 59
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 48
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 36
- KELHQGOVULCJSG-UHFFFAOYSA-N n,n-dimethyl-1-(5-methylfuran-2-yl)ethane-1,2-diamine Chemical compound CN(C)C(CN)C1=CC=C(C)O1 KELHQGOVULCJSG-UHFFFAOYSA-N 0.000 description 31
- 238000001035 drying Methods 0.000 description 29
- 239000011780 sodium chloride Substances 0.000 description 24
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 22
- 239000004408 titanium dioxide Substances 0.000 description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 20
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000005507 spraying Methods 0.000 description 16
- 238000009210 therapy by ultrasound Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 11
- 238000000227 grinding Methods 0.000 description 11
- 238000000151 deposition Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 238000010926 purge Methods 0.000 description 8
- 230000008021 deposition Effects 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 7
- 238000001132 ultrasonic dispersion Methods 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 6
- 238000010285 flame spraying Methods 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000002041 carbon nanotube Substances 0.000 description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- QLVWOKQMDLQXNN-UHFFFAOYSA-N dibutyl carbonate Chemical group CCCCOC(=O)OCCCC QLVWOKQMDLQXNN-UHFFFAOYSA-N 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000002322 conducting polymer Substances 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- -1 titanium ions Chemical class 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000009718 spray deposition Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- NXEAFRGGOHGNKQ-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Ti+4].[Ti+4] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Ti+4].[Ti+4] NXEAFRGGOHGNKQ-UHFFFAOYSA-N 0.000 description 1
- 230000021523 carboxylation Effects 0.000 description 1
- 238000006473 carboxylation reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- VKRWBTVMYISSEF-UHFFFAOYSA-N oxygen(2-);titanium(2+) Chemical group [O-2].[Ti+2] VKRWBTVMYISSEF-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
-
- 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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K2201/001—Conductive additives
-
- 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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a conductive composite material, in particular to a preparation method of a high-toughness conductive polymer composite material, which comprises the following steps of: 30-40 parts of polycarbonate, 20-25 parts of conductive polycarbonate, 3-5 parts of conductive filler, 2-3 parts of coupling agent, 1-3 parts of toughening agent and 2-6 parts of HDPE, and provides a specific preparation method. The invention solves the problem of toughness reduction caused by excessive conductive filler in the existing conductive polycarbonate, utilizes the conductive polycarbonate and the conductive filler to form a double-network conductive system, and forms the regularization of a conductive network by matching with a homogeneous material among polycarbonates, reduces the use of the conductive filler and ensures the toughness of a composite material.
Description
Technical Field
The invention belongs to a conductive composite material, and particularly relates to a preparation method of a high-toughness conductive polymer composite material.
Background
The polycarbonate has excellent comprehensive performance, good flame retardance, wide application temperature range, high dimensional stability and particularly outstanding toughness, and is engineering plastic widely applied. However, polycarbonate does not have excellent conductivity of a metal material, and application of polycarbonate to a conductive part instead of a metal material is greatly hindered. Conductive polycarbonate is produced along with market demands and technical development, but the conductive polycarbonate has the defects of poor interfacial bonding force between a conductive filler and a resin substrate, large addition amount, nonuniform dispersion of the filler, unstable conductivity of plastics, great reduction of toughness, difficult processing and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a preparation method of a high-toughness conductive polymer composite material, which solves the problem of toughness reduction caused by excessive conductive fillers in the existing conductive polycarbonate.
In order to realize the technical purpose, the technical scheme of the invention is as follows:
a preparation method of a high-toughness conductive polymer composite material comprises the following steps: 30-40 parts of polycarbonate, 20-25 parts of conductive polycarbonate, 3-5 parts of conductive filler, 2-3 parts of coupling agent, 1-3 parts of toughening agent and 2-6 parts of HDPE.
The polycarbonate adopts bisphenol A type aromatic polycarbonate with molecular weight of 20000-30000.
The conductive polycarbonate is formed by taking polycarbonate as a carrier and a titanium conductive material as a surface layer material, the polycarbonate is bisphenol A aromatic polycarbonate with the molecular weight of 20000-30000, the mass ratio of the titanium conductive material to the polycarbonate is 1:5-8, the conductive polycarbonate takes the polycarbonate as the carrier and can form homogeneous connection with polycarbonate particles, a stable clamping effect is formed on the conductive material on the surface of the conductive polycarbonate, and meanwhile, the titanium conductive material is in a wrapping state and is uniformly distributed on the polycarbonate carrier in the conductive polycarbonate to form a uniform conductive network system. The network system has good stability and is in a net-shaped connection structure all the time in subsequent treatment, so that the conductive polycarbonate provides a uniformly distributed conductive network structure. The titanium conductive material is composite titanium oxide, the composite titanium oxide is a composite shell layer of titanium monoxide and titanium dioxide, the titanium monoxide and the titanium dioxide belong to a homogeneous material, the combination of an oxidation system is formed, the excellent combination performance is achieved, and the combination force is strong, so that a firmly combined conductive shell layer structure is formed on the surface of the conductive polycarbonate, and secondly, carbon-oxygen double bonds are contained in the polycarbonate, and the carbon-oxygen double bonds are matched with the benzene rings beside the polycarbonate, so that the surface has excellent electronegativity, namely, the carbon-oxygen double bonds form polar groups of an electronegative structure; the saturated state of the titanium oxide is titanium dioxide, the titanium oxide has excellent conductivity and ultraviolet corresponding characteristics, the titanium oxide belongs to an excellent conductive material, titanium ions on the titanium oxide have electron bare and have anoxic and titanium-deficient characteristics, when the titanium oxide is combined with polycarbonate, excellent oxygen negative bare appears on the surface of a carbon-oxygen double bond in the polycarbonate carrier, the titanium oxide can be combined with the titanium oxide, the titanium oxide has excellent associativity, and the conductive material and the polycarbonate are stably combined; based on the self-process difficulty of the titanium monoxide, therefore, the conductive polycarbonate takes the polycarbonate as a carrier, sequentially takes the titanium dioxide and the titanium monoxide as intermediate layers and takes the titanium dioxide surface layer to form a multi-layer conductive structure, the titanium dioxide on the surface and the titanium monoxide form homogenization connection, and the oxygen-deficient structure on the titanium monoxide drags oxygen ions on the surface of the titanium dioxide to carry out displacement of the oxygen ions in the titanium dioxide, so that the titanium dioxide also has certain oxygen-deficient characteristic, and meanwhile, the stable structure of the titanium dioxide cannot be oxidized, therefore, the problem that the titanium monoxide is easy to oxidize can be effectively solved by wrapping the titanium dioxide, and the stability of the titanium monoxide is maintained; when the conductive polycarbonate and the polycarbonate are combined, carbon-oxygen double bonds in the polycarbonate and the titanium dioxide form stable group traction connection, the surface has excellent combination effect, and the conductive polycarbonate and the polycarbonate form a uniformly distributed conductive network structure in the polymer composite material.
Further, the preparation method of the conductive polycarbonate comprises the following steps: a1, melt-granulating polycarbonate to obtain polycarbonate granules, wherein the polycarbonate granules are prepared by the methodThe melting temperature is 250-260 ℃, and the grain diameter of the granulated polycarbonate grains is 1-2mm; the step is to melt polycarbonate by means of melting and form fine particles in the granulation process; a2, adding sodium chloride into ethanol, performing ultrasonic dispersion for 20-30min, drying to obtain fine sodium chloride particles, then adding the fine sodium chloride particles into polycarbonate particles, performing grinding treatment for 2-3h, and screening and filtering to obtain polycarbonate particles with rough surfaces, wherein the mass ratio of the sodium chloride to the ethanol is 1:8-10, the ultrasonic frequency of ultrasonic dispersion is 60-80kHz, the temperature is 40-50 ℃, the drying temperature is 80-90 ℃, the mass ratio of the sodium chloride to the polycarbonate particles is 3:1-2, the grinding pressure of the grinding treatment is 0.12-0.13MPa, the step utilizes the insolubility of the sodium chloride in the ethanol and the high-frequency dispersion effect of ultrasonic to completely disperse the sodium chloride in the ethanol to form a colloidal structure, and the fine sodium chloride particles are obtained after drying, the particle size distribution of the particles is uniform and the particles are extremely small, then the fine sodium chloride particles and the polycarbonate particles are subjected to grinding treatment, and the pressing effect of a small amount of pressure is matched to ensure that the fine sodium chloride particles form stable scratch structures on the surfaces of the polycarbonate, so as to realize the rough structures of the polycarbonate particles; a3, adding tetrabutyl titanate into diethyl ether, uniformly stirring to form a stable solution, then putting polycarbonate particles, carrying out low-temperature ultrasonic treatment for 20-30min, carrying out constant-temperature ultrasonic treatment for 5-10min to obtain a concentrated solution, filtering, and drying to obtain coated polycarbonate, wherein the concentration of tetrabutyl titanate in diethyl ether is 50-100g/L, the stirring speed is 500-1000r/min, the concentration of polycarbonate particles in the solution is 50-100g/L, the temperature of low-temperature ultrasonic treatment is 5-10 ℃, the ultrasonic frequency is 50-80kHz, the temperature of constant-temperature ultrasonic treatment is 30-40 ℃, the ultrasonic frequency is 50-70kHz, the volume of the concentrated solution is 30-50% of the original solution, and the drying temperature is 40-50 ℃; the step utilizes a low-temperature ultrasonic mode to uniformly disperse polycarbonate particles and n-butyl titanate in ether to form a homogeneous structure, a constant-temperature ultrasonic mode can not only improve the uniform distribution of n-butyl titanate, but also gradually evaporate ether to achieve a concentration effect, and along with the increase of the concentration of n-butyl titanate, the polycarbonate with a rough surface is deposited with n-butyl titanate and is shaped in the process of filteringForming a liquid film on the surface, forming surface deposition of n-butyl carbonate after the liquid film is removed, wherein the rough surface structure can promote the deposition of the n-butyl titanate based on the smoothness of the polycarbonate material and gradually form surface deposition of the n-butyl titanate on the surface in the deposition; a4, placing the coated polycarbonate into a reaction kettle, standing for 10-20min, and purging with nitrogen to obtain titanic acid coated polycarbonate; the atmosphere of the reaction kettle is nitrogen and water vapor, the volume ratio of water vapor is 8-10%, the standing temperature is 80-100 ℃, and the nitrogen purging temperature is 120-150 ℃; forming an in-situ hydrolysis system by using water-containing air as an atmosphere, and ensuring that a stable titanium hydroxide wrapping layer is formed on the surface to obtain polycarbonate particles wrapped by hydrolysis products; a5, adding nano titanium monoxide into ether, uniformly stirring, spraying the nano titanium monoxide onto the surface of polycarbonate particles, drying to form polycarbonate particles with surface deposition, then spraying n-butyl titanate ether liquid onto the surface of the polycarbonate particles, and drying to obtain multilayer coated polycarbonate particles, wherein the particle size of the nano titanium monoxide is 100-200nm, the mass ratio of the titanium monoxide to the ether is 1-10-20, the stirring speed is 100-200r/min, the solid-liquid ratio in spraying is 1:5-8, and the drying temperature is 40-50 ℃; the volume ratio of n-butyl carbonate to diethyl ether in the n-butyl titanate ethyl ether solution is 1:3-5, the spraying speed is 3-5mL/min, and the spraying area is 100-200cm 2 The drying temperature is 60-80 ℃; the method comprises the following steps of utilizing the self nano material characteristics of nano titanium monoxide, homogenizing and dispersing the nano titanium monoxide in ether, depositing the nano titanium monoxide on the surface of polycarbonate in a spray deposition mode, and solidifying the nano titanium monoxide on the surface of the polycarbonate by utilizing the self viscosity of the n-butyl titanate in cooperation with the spray deposition of n-butyl titanate ether liquid to form the effect of multiple coating; a6, standing the multilayer coated polycarbonate particles for 1-3h, and then putting the polycarbonate particles into a high-temperature furnace for flame spraying and sintering to obtain conductive polycarbonate; the standing atmosphere is a mixed atmosphere of water vapor and nitrogen, the volume ratio of the water vapor to the nitrogen is 1-12, the temperature of the flame spraying sintering is 500-600 ℃, and the time is 3-5s; the step hydrolyzes the tetrabutyl titanate on the surface by a standing way, thereby solidifying the titanium monoxide in a titanium hydroxide interlayer, and the flame spraying burnsThe hydrolyzed polycarbonate particles are sprayed to the periphery of the flame, the titanium hydroxide reaction is promoted to generate titanium dioxide by utilizing the high temperature of the flame, the influence of the temperature on the polycarbonate in the process is reduced, and the conductive polycarbonate coated by the titanium oxide is obtained. The conductive polycarbonate obtained by the process greatly improves the bonding between a titanium oxide material and a polycarbonate material based on the oxygen-deficient defect on the surface of titanium monoxide, forms good bonding force, simultaneously keeps certain activity of titanium dioxide on the surface, provides conditions for subsequent bonding, and has a titanium dioxide-titanium monoxide-titanium dioxide frame as a titanium oxide structure on the surface, so that the conductive polycarbonate has excellent supporting structure and mechanical strength, forms a stable conductive network, and improves the conductivity of the polycarbonate.
The conductive filler is a composition of a double-wall carbon nanotube and a multi-wall carbon nanotube, the mass ratio of the double-wall carbon nanotube to the multi-wall carbon nanotube is 1:2-3, the carbon nanotube has good conductivity and can improve good conductive effect. Furthermore, the conductive filler adopts carboxylated carbon nanotubes. The carboxylated carbon nanotube can be connected with carboxyl groups on the surface of a multi-wall, the carboxyl groups are utilized to improve the connection strength of the carbon nanotube and organic materials such as polycarbonate and the like, the stable combination effect is realized, meanwhile, the conductivity in the organic materials is improved, the uniform dispersion of the conductive system and the conductive network of the conductive polycarbonate is ensured, and the uniform distribution effect is achieved.
The coupling agent is titanate coupling agent, specifically TMC-201 or TMC-102. The titanate coupling agent can be chemically reacted with an organic material to be connected, meanwhile, the titanate and titanium dioxide on the conductive polycarbonate belong to homogeneous materials, and the titanium-lacking characteristic of titanium monoxide is matched, so that the titanium in the titanate can be attracted, and an excellent coupling effect is achieved.
The toughening agent adopts an ethylene-methyl acrylate copolymer.
The preparation method of the high-toughness conducting polymer composite material comprises the following steps:
step 1, placing polycarbonate and conductive polycarbonate into a reaction kettle to bake for 3-4 hours at constant temperature for later use, wherein the constant-temperature baking temperature is 100-110 ℃;
step 2, putting polycarbonate and conductive filler into a mixer, mixing and stirring at a high speed to obtain a premix, adding the coupling agent, the toughening agent and HDPE into the premix, and continuously stirring for 10-20min to obtain a mixture, wherein the stirring speed of the high-speed mixing is 400-600rpm, and the temperature is 40-60 ℃;
step 3, adding the mixture into a hopper from a main feeding port of a screw extruder, adding conductive polycarbonate into the hopper from a glass fiber port of the screw extruder, and performing extrusion granulation and bracing and grain cutting in the screw extruder to obtain a composite material; the extrusion temperature is 240-260 ℃, and the rotating speed is 200-250rpm; the conductive polycarbonate in the step keeps good stability, even if the polycarbonate in the conductive polycarbonate is softened, based on the stability of a titanium-oxygen shell structure, a titanium-oxygen structure with a conductive system still exists in the whole molten liquid, meanwhile, the polycarbonate in the conductive polycarbonate in the granulation is liquefied and then is solidified in situ again, the structure of the polycarbonate outside is not wanted, and meanwhile, an oxygen-deficient system represented by titanium dioxide still exists and can still form stable connection with the polycarbonate; the whole surface of the conductive polycarbonate particle also shows an anoxic structure, and the anoxic structure corresponds to carbon-oxygen double bonds on the polycarbonate, so that the effect of preferential curing is achieved, and at the moment, the conductive filler is added into the polycarbonate and is matched with the coupling agent, the toughening agent and the HDPE to form conductive modification; therefore, the polycarbonate mixture containing the conductive filler and the conductive polycarbonate form blending extrusion, and the two conductive systems are combined to form an evenly distributed conductive system taking a silica conductive network as a main body and taking the conductive filler as a topological network.
From the above description, it can be seen that the present invention has the following advantages:
1. the invention solves the problem of toughness reduction caused by excessive conductive filler in the existing conductive polycarbonate, utilizes the conductive polycarbonate and the conductive filler to form a double-network conductive system, and forms the regularization of a conductive network by matching with a homogeneous material among polycarbonates, thereby reducing the use of the conductive filler and ensuring the toughness of a composite material.
2. The invention utilizes titanium oxide material as conductive material of conductive polycarbonate, and adds the titanium oxide material on the polycarbonate in a wrapped shell-shaped structure to form a surface conductive network of the polycarbonate.
3 the invention uses carboxylation of conductive filler to activate the multi-wall structure of the carbon nano tube to form an active center which can form stable bond connection with high polymer material and form an external spread conductive network by using the active center as a conductive core.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to examples, but the present invention is not limited to the claims.
Example 1
A preparation method of a high-toughness conductive polymer composite material comprises the following steps: 30 parts of polycarbonate, 20 parts of conductive polycarbonate, 3 parts of conductive filler, 2 parts of coupling agent, 1 part of toughening agent and 2 parts of HDPE.
The polycarbonate adopts bisphenol A type aromatic polycarbonate with molecular weight of 20000-30000.
The conductive polycarbonate is formed by taking polycarbonate as a carrier and a titanium conductive material as a surface layer material, the polycarbonate is bisphenol A type aromatic polycarbonate with the molecular weight of 20000-30000, and the mass ratio of the titanium conductive material to the polycarbonate is 1:5.
The conductive polycarbonate takes polycarbonate as a carrier, titanium dioxide and titanium monoxide are sequentially taken as intermediate layers, and a titanium dioxide surface layer is taken to form a multilayer conductive structure; the preparation method of the conductive polycarbonate comprises the following steps: a1, melt-granulating polycarbonate to obtainPolycarbonate particles, wherein the melting temperature is 250 ℃, and the particle size of the granulated polycarbonate particles is 1mm; a2, adding sodium chloride into ethanol, performing ultrasonic dispersion for 20min, drying to obtain fine sodium chloride particles, then adding the fine sodium chloride particles into polycarbonate particles, performing grinding treatment for 2h, and performing screening and filtering to obtain polycarbonate particles with rough surfaces, wherein the mass ratio of the sodium chloride to the ethanol is 1:8, the ultrasonic frequency of ultrasonic dispersion is 60kHz, the temperature is 40 ℃, the drying temperature is 80 ℃, the mass ratio of the sodium chloride to the polycarbonate particles is 3:1, and the grinding pressure of the grinding treatment is 0.12MPa; a3, adding n-butyl titanate into diethyl ether, uniformly stirring to form a stable solution, then putting polycarbonate particles, carrying out low-temperature ultrasonic treatment for 20min, carrying out constant-temperature ultrasonic treatment for 5min to obtain a concentrated solution, filtering and drying to obtain coated polycarbonate, wherein the concentration of n-butyl titanate in diethyl ether is 50g/L, the stirring speed is 500r/min, the concentration of the polycarbonate particles in the solution is 50g/L, the temperature of the low-temperature ultrasonic treatment is 5 ℃, the ultrasonic frequency is 50kHz, the temperature of the constant-temperature ultrasonic treatment is 30 ℃, the ultrasonic frequency is 50kHz, the volume of the concentrated solution is 30% of that of the original solution, and the drying temperature is 40 ℃; a4, placing the coated polycarbonate into a reaction kettle, standing for 10min, and purging with nitrogen to obtain titanic acid coated polycarbonate; the atmosphere of the reaction kettle is nitrogen and water vapor, the volume ratio of the water vapor is 8%, the standing temperature is 80 ℃, and the nitrogen purging temperature is 120 ℃; a5, adding nano titanium monoxide into diethyl ether, uniformly stirring, spraying the nano titanium monoxide on the surface of polycarbonate particles, drying to form polycarbonate particles with surface deposition, spraying n-butyl titanate diethyl ether liquid on the surface of the polycarbonate particles, and drying to obtain multilayer coated polycarbonate particles, wherein the particle size of the nano titanium monoxide is 100nm, the mass ratio of the titanium monoxide to the diethyl ether is 1; the volume ratio of n-butyl carbonate to diethyl ether in the n-butyl titanate ethyl ether solution is 1:3, the spraying speed is 3-5mL/min, and the spraying area is 100cm 2 The drying temperature is 60 ℃; a6, standing the multilayer coated polycarbonate particles for 1h, and then putting the polycarbonate particles into a high-temperature furnace for flame spraying and sintering to obtain the conductive materialA polycarbonate; the standing atmosphere is a mixed atmosphere of water vapor and nitrogen, the volume ratio of the water vapor to the nitrogen is 1.
The conductive filler is a composition of double-wall carbon nanotubes and multi-wall carbon nanotubes, and the mass ratio of the double-wall carbon nanotubes to the multi-wall carbon nanotubes is 1:2.
The coupling agent is titanate coupling agent, and the specific type is TMC-201.
The toughening agent adopts ethylene-methyl acrylate copolymer.
The preparation method of the high-toughness conducting polymer composite material comprises the following steps:
step 1, placing polycarbonate and conductive polycarbonate into a reaction kettle to bake for 3 hours at constant temperature for later use, wherein the constant-temperature baking temperature is 100 ℃;
step 2, placing the polycarbonate and the conductive filler into a mixer for high-speed mixing and stirring to obtain a premix, then adding the coupling agent, the toughening agent and the HDPE into the premix, and continuously stirring for 10min to obtain a mixture, wherein the stirring speed of the high-speed mixing is 400rpm, and the temperature is 40 ℃;
step 3, adding the mixture into a hopper from a main feeding port of a screw extruder, adding conductive polycarbonate into the hopper from a glass fiber port of the screw extruder, and performing extrusion granulation and bracing and grain cutting in the screw extruder to obtain a composite material; the extrusion temperature is 240-260 ℃ and the rotating speed is 200rpm.
The polymer composite material prepared in example 1 was found to have a volume resistivity of 0.103. Omega./cm and an impact strength of 445J/M.
Example 2
A preparation method of a high-toughness conductive polymer composite material comprises the following steps: 40 parts of polycarbonate, 25 parts of conductive polycarbonate, 5 parts of conductive filler, 3 parts of coupling agent, 3 parts of toughening agent and 6 parts of HDPE.
The polycarbonate is bisphenol A aromatic polycarbonate with the molecular weight of 20000-30000.
The conductive polycarbonate is formed by taking polycarbonate as a carrier and a titanium conductive material as a surface layer material, the polycarbonate is bisphenol A type aromatic polycarbonate with the molecular weight of 20000-30000, and the mass ratio of the titanium conductive material to the polycarbonate is 1:8.
The conductive polycarbonate takes polycarbonate as a carrier, titanium dioxide and titanium monoxide are sequentially taken as intermediate layers, and a titanium dioxide surface layer is taken to form a multilayer conductive structure; the preparation method of the conductive polycarbonate comprises the following steps: a1, melting and granulating polycarbonate to obtain polycarbonate granules, wherein the melting temperature is 260 ℃, and the particle size of the granulated polycarbonate granules is 2mm; a2, adding sodium chloride into ethanol, performing ultrasonic dispersion for 30min, drying to obtain fine sodium chloride particles, then adding the fine sodium chloride particles into polycarbonate particles, performing grinding treatment for 3h, and performing screening and filtering to obtain polycarbonate particles with rough surfaces, wherein the mass ratio of the sodium chloride to the ethanol is 1; a3, adding n-butyl titanate into diethyl ether, uniformly stirring to form a stable solution, then putting polycarbonate particles, carrying out low-temperature ultrasonic treatment for 30min, carrying out constant-temperature ultrasonic treatment for 10min to obtain a concentrated solution, filtering, and drying to obtain coated polycarbonate, wherein the concentration of n-butyl titanate in diethyl ether is 100g/L, the stirring speed is 1000r/min, the concentration of the polycarbonate particles in the solution is 100g/L, the temperature of the low-temperature ultrasonic treatment is 10 ℃, the ultrasonic frequency is 80kHz, the temperature of the constant-temperature ultrasonic treatment is 40 ℃, the ultrasonic frequency is 70kHz, the volume of the concentrated solution is 50% of the volume of the original solution, and the drying temperature is 50 ℃; a4, placing the coated polycarbonate into a reaction kettle, standing for 20min, and purging with nitrogen to obtain titanic acid coated polycarbonate; the atmosphere of the reaction kettle is nitrogen and water vapor, the volume ratio of the water vapor is 10%, the standing temperature is 100 ℃, and the nitrogen purging temperature is 150 ℃; a5, adding nano titanium monoxide into diethyl ether, stirring uniformly, spraying the nano titanium monoxide on the surface of polycarbonate particles, drying to form polycarbonate particles with deposited surfaces, and then adding n-butyl titanate diethyl ether liquidSpraying the nano titanium oxide onto the surface of polycarbonate particles, and drying to obtain multilayer coated polycarbonate particles, wherein the particle size of the nano titanium oxide is 200nm, the mass ratio of the titanium oxide to diethyl ether is 1; the volume ratio of the n-butyl carbonate to the diethyl ether in the n-butyl titanate ethyl ether solution is 1:5, the spraying speed is 5mL/min, and the spraying area is 200cm 2 The drying temperature is 80 ℃; a6, standing the multilayer coated polycarbonate particles for 3 hours, and then putting the polycarbonate particles into a high-temperature furnace for flame spraying and sintering to obtain conductive polycarbonate; the standing atmosphere is a mixed atmosphere of water vapor and nitrogen, the volume ratio of the water vapor to the nitrogen is 1.
The conductive filler is a composition of double-wall carbon nanotubes and multi-wall carbon nanotubes, and the mass ratio of the double-wall carbon nanotubes to the multi-wall carbon nanotubes is 1:3.
The coupling agent is titanate coupling agent, and the specific model is TMC-102.
The toughening agent adopts ethylene-methyl acrylate copolymer.
The preparation method of the high-toughness conducting polymer composite material comprises the following steps:
step 1, placing polycarbonate and conductive polycarbonate into a reaction kettle to bake for 4 hours at constant temperature for later use, wherein the constant-temperature baking temperature is 110 ℃;
step 2, placing the polycarbonate and the conductive filler into a mixer for high-speed mixing and stirring to obtain a premix, then adding the coupling agent, the toughening agent and the HDPE into the premix, and continuously stirring for 20min to obtain a mixture, wherein the stirring speed of the high-speed mixing is 600rpm, and the temperature is 60 ℃;
step 3, adding the mixture into a hopper from a main feeding port of a screw extruder, adding conductive polycarbonate into the hopper from a glass fiber port of the screw extruder, and performing extrusion granulation and bracing and grain cutting in the screw extruder to obtain a composite material; the extrusion temperature was 260 ℃ and the rotation speed was 250rpm.
The volume resistivity of the polymer composite material prepared in example 1 was measured to be 0.087. Omega./cm, and the impact strength was 486J/M.
Example 3
A preparation method of a high-toughness conductive polymer composite material comprises the following steps: 35 parts of polycarbonate, 23 parts of conductive polycarbonate, 4 parts of conductive filler, 3 parts of coupling agent, 2 parts of toughening agent and 4 parts of HDPE.
The polycarbonate adopts bisphenol A type aromatic polycarbonate with molecular weight of 20000-30000.
The conductive polycarbonate is formed by taking polycarbonate as a carrier and a titanium conductive material as a surface layer material, the polycarbonate is bisphenol A type aromatic polycarbonate with the molecular weight of 20000-30000, and the mass ratio of the titanium conductive material to the polycarbonate is 1:7.
The conductive polycarbonate takes polycarbonate as a carrier, titanium dioxide and titanium monoxide are sequentially taken as middle layers, and a titanium dioxide surface layer is taken to form a multilayer conductive structure; the preparation method of the conductive polycarbonate comprises the following steps: a1, melting and granulating polycarbonate to obtain polycarbonate granules, wherein the melting temperature is 255 ℃, and the particle size of the granulated polycarbonate granules is 2mm; a2, adding sodium chloride into ethanol, performing ultrasonic dispersion for 25min, drying to obtain fine sodium chloride particles, then adding the fine sodium chloride particles into polycarbonate particles, performing grinding treatment for 3h, and performing screening and filtering to obtain polycarbonate particles with rough surfaces, wherein the mass ratio of the sodium chloride to the ethanol is 1:9, the ultrasonic frequency of the ultrasonic dispersion is 70kHz, the temperature is 45 ℃, the drying temperature is 85 ℃, the mass ratio of the sodium chloride to the polycarbonate particles is 3:1, and the grinding pressure of the grinding treatment is 0.12MPa; a3, adding n-butyl titanate into ether, uniformly stirring to form a stable solution, then putting polycarbonate particles, carrying out low-temperature ultrasonic treatment for 25min, carrying out constant-temperature ultrasonic treatment for 8min to obtain a concentrated solution, filtering and drying to obtain coated polycarbonate, wherein the concentration of n-butyl titanate in ether is 80g/L, the stirring speed is 800r/min, the concentration of polycarbonate particles in the solution is 80g/L, the temperature of low-temperature ultrasonic treatment is 8 ℃, the ultrasonic frequency is 70kHz, the temperature of constant-temperature ultrasonic treatment is 35 ℃, and the ultrasonic frequency is 6 DEG C0kHz, wherein the volume of the concentrated solution is 40 percent of that of the original solution, and the drying temperature is 45 ℃; a4, placing the coated polycarbonate into a reaction kettle, standing for 15min, and purging with nitrogen to obtain titanic acid coated polycarbonate; the atmosphere of the reaction kettle is nitrogen and water vapor, the volume ratio of the water vapor is 9%, the standing temperature is 90 ℃, and the nitrogen purging temperature is 130 ℃; a5, adding nano titanium monoxide into diethyl ether, uniformly stirring, spraying the nano titanium monoxide on the surface of polycarbonate particles, drying to form polycarbonate particles with surface deposition, spraying n-butyl titanate diethyl ether liquid on the surface of the polycarbonate particles, and drying to obtain multilayer coated polycarbonate particles, wherein the particle size of the nano titanium monoxide is 150nm, the mass ratio of the titanium monoxide to the diethyl ether is 1; the volume ratio of n-butyl carbonate to diethyl ether in the n-butyl titanate ethyl ether solution is 1:4, the spraying speed is 4mL/min, and the spraying area is 150cm 2 The drying temperature is 70 ℃; a6, standing the multilayer coated polycarbonate particles for 2 hours, and then placing the polycarbonate particles into a high-temperature furnace for flame spraying and sintering to obtain conductive polycarbonate; the standing atmosphere is a mixed atmosphere of water vapor and nitrogen, the volume ratio of the water vapor to the nitrogen is 1.
The conductive filler is a composition of double-wall carbon nanotubes and multi-wall carbon nanotubes, and the mass ratio of the double-wall carbon nanotubes to the multi-wall carbon nanotubes is 1:2.
The coupling agent is titanate coupling agent, and the specific model is TMC-201.
The toughening agent adopts an ethylene-methyl acrylate copolymer.
The preparation method of the high-toughness conducting polymer composite material comprises the following steps:
step 1, placing polycarbonate and conductive polycarbonate into a reaction kettle to be baked for 4 hours at a constant temperature for later use, wherein the constant-temperature baking temperature is 105 ℃;
step 2, placing the polycarbonate and the conductive filler into a mixer for high-speed mixing and stirring to obtain a premix, then adding the coupling agent, the toughening agent and the HDPE into the premix, and continuously stirring for 15min to obtain a mixture, wherein the stirring speed of the high-speed mixing is 500rpm, and the temperature is 50 ℃;
step 3, adding the mixture into a hopper from a main feeding port of a screw extruder, adding conductive polycarbonate into the hopper from a glass fiber port of the screw extruder, and performing extrusion granulation and bracing and grain cutting in the screw extruder to obtain a composite material; the extrusion temperature was 250 ℃ and the rotation speed was 240rpm.
Through detection, the volume resistivity of the polymer composite material prepared in example 1 is 0.97 omega/cm, and the impact strength is 461J/M
The volume resistivity described above was measured according to the method provided in ASTM D257, and the impact strength was measured according to the method provided in ASTM D4812.
The polymer composite material prepared by the invention has excellent conductivity and toughness, and can meet the requirements of industries such as electronics, automobile parts and the like.
In the above embodiment:
the ethylene-methyl acrylate copolymer was obtained from DuPont 1218AC.
The HDPE is DMDA-8920 of Dow.
The double-wall carbon nano tube adopts a double-wall carbon nano tube with the number of BKMK 2058.
The multi-walled carbon nano-tube adopts a maocao nano multi-walled carbon nano-tube.
The volume resistivity test method comprises the following steps:
a1, extruding a polymer composite material to form a square with the side length of 100mm and the thickness of 10mm; (ensure the surface to be smooth and have no defects such as cracks);
a2, placing the square into an oven, and keeping the square in the oven at 20 ℃ for 1h for testing;
and a3, at the temperature of 20 ℃, connecting the sample into a resistance tester, enabling two ends of the sample to be in complete contact with the electrodes respectively, reading data of the resistance tester after electrifying for about 1 minute, and repeatedly testing each sample for three times.
and a4, calculating the volume resistivity according to a formula.
Method for testing impact Strength (method biased to American Standard (unnotched plastic impact test))
a1, manufacturing a polymer composite material into a sample strip with the specification of 64 × 12.5 × 3.2;
and a2, placing the sample strip into a pendulum impact tester, fixing and impacting.
and a3, testing each group of samples for 3 times, and calibrating each group of tests once.
It should be understood that the detailed description of the invention is only for illustrating the invention and is not limited to the technical solutions described in the embodiments of the invention. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (10)
1. A preparation method of a high-toughness conductive polymer composite material is characterized by comprising the following steps: the high-toughness conductive polymer composite material comprises the following components in percentage by mass: 30-40 parts of polycarbonate, 20-25 parts of conductive polycarbonate, 3-5 parts of conductive filler, 2-3 parts of coupling agent, 1-3 parts of toughening agent and 2-6 parts of HDPE.
2. The method for producing a high-toughness electroconductive polymer composite material according to claim 1, wherein said polycarbonate is bisphenol A aromatic polycarbonate having a molecular weight of 20000 to 30000.
3. The method for preparing a high-toughness conductive polymer composite material according to claim 1, wherein the conductive polycarbonate is formed by using a polycarbonate as a carrier and a titanium-based conductive material as a surface layer material.
4. The method for producing a high-toughness electroconductive polymer composite material according to claim 3, wherein said polycarbonate is bisphenol A aromatic polycarbonate having a molecular weight of 20000 to 30000.
5. The method for preparing the high-toughness conductive polymer composite material according to claim 3, wherein the mass ratio of the titanium conductive material to the polycarbonate is 1:5-8.
6. The method for preparing a high-toughness conductive polymer composite material according to claim 1, wherein the conductive filler is a combination of double-walled carbon nanotubes and multi-walled carbon nanotubes.
7. The method for preparing the high-toughness conductive polymer composite material according to claim 6, wherein the mass ratio of the double-walled carbon nanotubes to the multi-walled carbon nanotubes is 1:2-3.
8. The method for preparing a high-toughness conductive polymer composite material according to claim 1, wherein a titanate coupling agent is used as the coupling agent.
9. The method for preparing a high-toughness conductive polymer composite material according to claim 1, wherein the toughening agent is an ethylene-methyl acrylate copolymer.
10. The method for preparing a high toughness conductive polymer composite according to claim 1, comprising the steps of:
step 1, placing polycarbonate and conductive polycarbonate into a reaction kettle to bake for 3-4 hours at constant temperature for later use, wherein the baking temperature at constant temperature is 100-110 ℃;
step 2, placing the polycarbonate and the conductive filler into a mixer for high-speed mixing and stirring to obtain a premix, then adding the coupling agent, the toughening agent and the HDPE into the premix, and continuously stirring for 10-20min to obtain a mixture, wherein the stirring speed of the high-speed mixing is 400-600rpm, and the temperature is 40-60 ℃;
step 3, adding the mixture into a hopper from a main feeding port of a screw extruder, adding conductive polycarbonate into the hopper from a glass fiber port of the screw extruder, and performing extrusion granulation and bracing and grain cutting in the screw extruder to obtain a composite material; the extrusion temperature is 240-260 ℃ and the rotating speed is 200-250rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353745.7A CN115386215A (en) | 2022-11-01 | 2022-11-01 | Preparation method of high-toughness conductive polymer composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211353745.7A CN115386215A (en) | 2022-11-01 | 2022-11-01 | Preparation method of high-toughness conductive polymer composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115386215A true CN115386215A (en) | 2022-11-25 |
Family
ID=84115154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211353745.7A Pending CN115386215A (en) | 2022-11-01 | 2022-11-01 | Preparation method of high-toughness conductive polymer composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115386215A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568598A (en) * | 2006-12-22 | 2009-10-28 | 第一毛织株式会社 | Electroconductive thermoplastic resin composition and plastic article |
| CN102532839A (en) * | 2010-12-29 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | High-performance conductive polycarbonate material and preparation method thereof |
| CN103788611A (en) * | 2012-10-30 | 2014-05-14 | 合肥杰事杰新材料股份有限公司 | High-strength conductive polycarbonate alloy environmental protection composite material and preparation method thereof |
| CN104744917A (en) * | 2015-04-14 | 2015-07-01 | 张家港大塚化学有限公司 | Preparation method of high-conductivity polycarbonate composite material |
-
2022
- 2022-11-01 CN CN202211353745.7A patent/CN115386215A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568598A (en) * | 2006-12-22 | 2009-10-28 | 第一毛织株式会社 | Electroconductive thermoplastic resin composition and plastic article |
| CN102532839A (en) * | 2010-12-29 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | High-performance conductive polycarbonate material and preparation method thereof |
| CN103788611A (en) * | 2012-10-30 | 2014-05-14 | 合肥杰事杰新材料股份有限公司 | High-strength conductive polycarbonate alloy environmental protection composite material and preparation method thereof |
| CN104744917A (en) * | 2015-04-14 | 2015-07-01 | 张家港大塚化学有限公司 | Preparation method of high-conductivity polycarbonate composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101135672B1 (en) | Conductive thermosets by extrusion | |
| KR101388682B1 (en) | HYBRID ELECTRODE USING Ag NANOWIRE AND GRAPHENE AND MANUFACTURING METHOD OF THE SAME | |
| JP4241070B2 (en) | Resin composition and method for producing the same | |
| US20040039096A1 (en) | Methods of forming conductive thermoplastic polyetherimide polyester compositions and articles formed thereby | |
| US8309226B2 (en) | Electrically conductive transparent coatings comprising organized assemblies of carbon and non-carbon compounds | |
| JP6927448B1 (en) | Thermoplastic resin composition and molded product for electromagnetic wave absorber | |
| CN115386215A (en) | Preparation method of high-toughness conductive polymer composite material | |
| JP5347842B2 (en) | Polyimide precursor solution composition containing fine carbon fibers and polyimide film using the same | |
| JP5708488B2 (en) | Polyimide precursor solution composition containing filler and polyimide film using the same | |
| CN101013614A (en) | Transparent conducting Composite material, film, board and method of manufacturing the same | |
| CN103540125B (en) | A kind of high temperature resistant conduction PPO/PA6 alloy material and preparation method thereof | |
| CN112266548A (en) | Long-acting antistatic foamed polyvinyl chloride | |
| KR20220017356A (en) | Conductive resin composition, method for preparing the same and molding products comprising the same | |
| CN110669296A (en) | Carbon nano material reinforced polystyrene and preparation method and application thereof | |
| CN112919450A (en) | Molecular system for uniformly and stably dispersing carbon nano tube and graphene and dispersing process | |
| KR20140129582A (en) | Glass fiber having carbom nanotube, preparation method thereof and reinforced plastic using the same | |
| JP2003286350A (en) | Molded articles of carbon fiber reinforced thermoplastic resin containing carbon nanotube and method for production thereof | |
| CN114148003B (en) | Method for preparing multilayer capacitance film modified by plasma | |
| JP7254242B2 (en) | CONDUCTIVE RESIN COMPOSITION, MANUFACTURING METHOD THEREFOR, AND MOLDED PRODUCT CONTAINING THE SAME | |
| WO2024050726A1 (en) | Flexible polyester film and preparation method therefor, composite current collector, battery and electronic product | |
| CN115891230A (en) | Preparation method of basalt fiber reinforced composite hydrogen storage bottle | |
| CN108004782B (en) | Thermoplastic inorganic fiber for plastics and preparation method thereof | |
| CN100528547C (en) | Single-walled carbon nanotube-ceramic composites and methods of use | |
| CN116836503A (en) | Polystyrene composite material and preparation method and application thereof | |
| CN115359948A (en) | Fuel cell gas diffusion layer conductive slurry, gas diffusion layer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221125 |