CN109485983A - A kind of conductive plastic base particle and its processing technology - Google Patents

A kind of conductive plastic base particle and its processing technology Download PDF

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CN109485983A
CN109485983A CN201811190503.4A CN201811190503A CN109485983A CN 109485983 A CN109485983 A CN 109485983A CN 201811190503 A CN201811190503 A CN 201811190503A CN 109485983 A CN109485983 A CN 109485983A
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plastic base
conductive plastic
base particle
carbon fiber
parts
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黄国飞
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/22Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04Homopolymers or copolymers of ethene
    • C08J2423/08Copolymers of ethene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10Homopolymers or copolymers of propene
    • C08J2423/12Polypropene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
    • C08K2003/0806Silver
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/08Metals
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
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    • C08K7/06Elements
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/02Ingredients treated with inorganic substances
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00Use of pretreated ingredients
    • C08K9/12Adsorbed ingredients, e.g. ingredients on carriers

Abstract

The invention discloses a kind of conductive plastic base particles, are formed by the Raw material processing of following parts by weight: 15-20 parts of ethylene-octene copolymer, 10-14 parts of acrylic resin, 35-45 parts of composite conducting object, 15-18 parts of modified carbon fiber, 0.1-0.4 parts of antioxidant, 0.2-0.3 parts of lubricant;The invention also discloses the processing technology of the conductive plastic base particle, including raw material drying, the first mixed material of preparation, the second mixture of preparation, melt blending extruding pelletization and etc..The present invention passes through using ethylene-octene copolymer and acrylic resin as macromolecule matrix; composite conducting object is conductive filler; modified carbon fiber is reinforcing filler; composite conducting object is the compound of graphene-supported nano silver; to make conductive plastic base particle obtain splendid electric conductivity, while its direct addition will not destroy matrix physical mechanical property, simultaneously; modified carbon fiber plays the effect of toughening to plastic master batch, so that conductive plastic base particle shows excellent mechanical property.

Description

A kind of conductive plastic base particle and its processing technology
Technical field
The invention belongs to plastic master batch technical fields, and in particular, to a kind of conductive plastic base particle and its processing technology.
Background technique
Plastic matrix (PlasticMasterbatch) be plastic additive super quantity is attached to it is manufactured in resin Condensation product;When manufacturing plastic products, it is not necessary to add this kind of plastic additive, need to only be proportionally added into this with super quantity Masterbatch.Therefore plastic matrix is a kind of novel high polymer material processing PP Pipe Compound.Kind is varied, such as filling is female Material, color masterbatch, flame-retardant master batch, antistatic master batch, wear-resisting masterbatch, multifunctional concentrate etc..
Under normal conditions, product made of plastics is all insulator, i.e., cannot be conductive, but more and more practical applications In, need plastic products that there is certain electric conductivity, such as, conductive plastics can be a kind of with good antistatic property The material or electromagnetic shielding material of energy.In the prior art, classify according to the production method of conductive plastics, structure can be divided into Type conductive plastics and composite conductive plastic, structural type macromolecule conducting material mainly have: (1) pi-conjugated system's macromolecule: such as poly- second Alkynes, (Sr) n, line style polyphenyl, stratiform high polymer etc.;(2) metallo-chelate: such as polyketone phthalocyanine;(3) charge mobile model macromolecule network Close object: such as polycation, CQ complex compound.High production cost, the technology difficulty of usually this kind of high molecular material are big, there is no so far Mass production.Widely applied conductive polymer material is typically all composite polymer material, filler in the prior art Matter mainly has metal dispersion system, carbon black system, organic complex disperse system;Wherein, the filler material of carbon black system is often because of its black Cause its application limited, moreover, conductive carbon black filler is not easy to be added (generally below 35%), and dispersion is uneven in the base It is even, it can not embody the excellent electric conductivity of conductive black, it is often more important that larger to the destruction of matrix physical property and easy to pollute Production environment;And metal dispersion system is often difficult to through the filter list in plastic molten melt elementary process after being filled into matrix Member causes the pressure of filter excessive, often can not normally produce or production cost is excessively high.
Summary of the invention
The purpose of the present invention is to provide a kind of conductive plastic base particle and its processing technologys, by being copolymerized with ethylene-octene Object and acrylic resin are macromolecule matrix, and composite conducting object is conductive filler, and modified carbon fiber is reinforcing filler, composite conducting Object is the compound of graphene-supported nano silver, to make conductive plastic base particle obtain splendid electric conductivity, while it is directly Addition will not destroy matrix physical mechanical property, meanwhile, modified carbon fiber plays the effect of toughening to plastic master batch, so that leading Electric plastic master batch shows excellent mechanical property.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of conductive plastic base particle is formed by the Raw material processing of following parts by weight: 15-20 parts of ethylene-octene copolymer gathers 10-14 parts of allyl resin, 35-45 parts of composite conducting object, 15-18 parts of modified carbon fiber, 0.1-0.4 parts of antioxidant, lubricant 0.2-0.3 parts;
The conductive plastic base particle is process by following steps:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, by ethylene-octene copolymer, composite conducting object, the antioxidant after drying be added to torque rheometer into In row melt blending, blending temperature is 180-190 DEG C, screw speed 50r/min, incorporation time 10min, then obtains the One mixed material;
Step S3, acrylic resin, modified carbon fiber and the lubricant after drying are added in high-speed mixer, are heated up To 165 DEG C, 5-6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, obtained pellet dry 8- at 80 DEG C Conductive plastic base particle is prepared in 9h.
Further, the antioxidant is one or more of antioxidant 1010, irgasfos 168, antioxidant 330.
Further, the lubricant is one or more of PE wax, zinc stearate, monoglyceride.
Further, the composite conducting object is prepared by the following method:
(1) it weighs 0.1g graphene to be placed in 100mL dehydrated alcohol, ultrasonic disperse 30min is configured to graphene-ethyl alcohol Dispersion liquid;
(2) it weighs 0.17g silver nitrate and is added in 10mL dehydrated alcohol and make it completely dissolved, the ammonium hydroxide for being 25% by concentration It is slowly dropped in silver nitrate alcoholic solution, guarantees that precipitating just disappears when last drop ammonium hydroxide is added, adjusting pH value is 9, is obtained Silver ammino solution;
(3) silver ammino solution is mixed with graphene-alcohol dispersion liquid, 0.1g polyvinylpyrrolidone and ultrasonic disperse is added 30min is transferred to temperature for magnetic agitation in 60 DEG C of water-baths, under 60 DEG C of constant temperature stirring conditions, by the 0.3mol/L's of 60mL Glucose ethanol solution is slowly dropped in mixed solution using constant pressure funnel, and reaction is terminated after heating stirring 60min, from It is so cooled to room temperature, products therefrom is centrifuged under 8000r/min high speed, takes lower sediment, then 2-3 is washed with deionized The dry 5-6h of air dry oven that is secondary, will being finally deposited in 80 DEG C, obtains composite conducting object.
Further, the graphene is prepared by the following method:
1) 3g metallic potassium and 1.5g graphite are weighed in single-necked flask, is vacuumized in 108 DEG C, it is rear to keep vacuum condition heating To 156 DEG C of reaction 22h, stops heating, 15mL hexamethylene is added after cooling;
2) it then to inner addition 30mL dehydrated alcohol, is filtered after ultrasonic 60min, successively uses HCl, the deionization of 0.8moL/L Water, DMF are cleaned three times;Cleaning is completed to be placed in homogenizer to stir 20min under 4500r/min, stands 12h, upper layer is taken to disperse Liquid carries out centrifugation optimization to dispersion liquid, supernatant is taken after 10000r/min centrifugation 10min, it is heavy that 3000r/min centrifugation 20min takes It forms sediment, precipitating is dried, graphene is made.
Further, the modified carbon fiber is prepared by the following method:
Carbon fiber is put into dehydrated alcohol, wherein the ratio between carbon fiber and dehydrated alcohol are 1g:5-6mL, ultrasonic disperse 8min, the carbon fiber after dispersion, which is put into acetone, impregnates 12h, and soaking temperature is 82 DEG C, and pulling out and placing into mass fraction is 68% Nitric acid in impregnate 2h, 92 DEG C of soaking temperature, after the completion of immersion, pull out, be placed in 76 DEG C of air dry oven dry 8-9h, obtain To modified carbon fiber.
A kind of processing technology of conductive plastic base particle, includes the following steps:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, by ethylene-octene copolymer, composite conducting object, the antioxidant after drying be added to torque rheometer into In row melt blending, blending temperature is 180-190 DEG C, screw speed 50r/min, incorporation time 10min, then obtains the One mixed material;
Step S3, acrylic resin, modified carbon fiber and the lubricant after drying are added in high-speed mixer, are heated up To 165 DEG C, 5-6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, obtained pellet dry 8- at 80 DEG C Conductive plastic base particle is prepared in 9h.
Further, extrusion process temperature parameter is 210 DEG C of area's temperature, 220 DEG C of two area's temperature, three Qu Wen in step S4 Spend 225 DEG C, 230 DEG C of four area's temperature, 240 DEG C of five area's temperature, 250 DEG C of six area's temperature.
Beneficial effects of the present invention:
(1) conductive plastic base particle of the invention is using composite conducting object as conductive filler, and the composite conducting object used is stone The compound of black alkene loading nano silvery, the graphene surface after loading nano silvery is smooth, and without fold, edge is not also rolled up It is bent;For the nano-Ag particles of graphene surface load in uniform spherical, size is uniform, realizes nano-Ag particles and graphene It comes into full contact with, increases the contact between nano-Ag particles, more conductive paths can be formed, be conducive to the raising of electric conductivity;It will When electrically conductive composite is dispersed in matrix resin, graphene film is equivalent to a bridge and is mounted in and receive because of its biggish surface area Gap between rice Argent grain forms more conductive paths using its excellent electric conductivity in matrix resin, is formed More electronics flowings, cause resistivity to decline, electric conductivity improves;
(2) present invention is added to modified carbon fiber in the raw material of plastic master batch, by being modified processing to carbon fiber It adding in resin matrix, modification mainly plays the role of three aspects to carbon fiber, first is that the impurity of carbon fiber surface is removed, It prevents these impurity from forming weak binding interface in subsequent plastic master batch preparation process, reduces the mechanical property of plastic master batch;Two It is that acid with strong oxidizing property (nitric acid) can etch carbon fiber surface, fiber surface gully is made to become changeable depth, the surface area of increased fiber And roughness, improve the mechanical snap degree of carbon fiber and resin matrix;Third is that generating some oxygen-containing officials of polarity in carbon fiber surface It can roll into a ball, increase the compatibility and intermolecular force of carbon fiber surface polarity and carbon fiber and resin matrix;Modified carbon fiber is equal Even to be scattered in resin matrix, external loads are transmitted on intensity higher carbon fiber from matrix when by external force, carbon fiber Dimension can effectively eliminate external loading, the toughness of matrix be improved, to improve the toughness of plastic master batch;Meanwhile utilizing nitric acid Treated good interface adhesion and compatibility between carbon fiber and resin matrix, interface adhesion can be broken well More energy are carried in the process, show excellent mechanical property;
(3) plastic master batch of the invention, using ethylene-octene copolymer and acrylic resin as macromolecule matrix, composite guide Electric object is conductive filler, and modified carbon fiber is reinforcing filler, and composite conducting object is the compound of graphene-supported nano silver, thus Conductive plastic base particle is set to obtain splendid electric conductivity, while its direct addition will not destroy matrix physical mechanical property, together When, modified carbon fiber plays the effect of toughening to plastic master batch, so that conductive plastic base particle shows excellent mechanical property;By This, such conductive plastic base particle with preferable electric conductivity is particularly suitable for production package of electronic products material, produces electronics The packaging of product has the effect of antistatic.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected Range.
A kind of conductive plastic base particle is formed by the Raw material processing of following parts by weight: ethylene-octene copolymer (POE) 15-20 Part, 10-14 parts of acrylic resin, 35-45 parts of composite conducting object, 15-18 parts of modified carbon fiber, 0.1-0.4 parts of antioxidant, lubrication 0.2-0.3 parts of agent;
The antioxidant is one or more of antioxidant 1010, irgasfos 168, antioxidant 330;
The lubricant is one or more of PE wax, zinc stearate, monoglyceride;
The composite conducting object is prepared by the following method:
1) 3g metallic potassium and 1.5g graphite are weighed in single-necked flask, is vacuumized in 108 DEG C, it is rear to keep vacuum condition heating To 156 DEG C of reaction 22h, stops heating, 15mL hexamethylene is added after cooling;
2) it then to inner addition 30mL dehydrated alcohol, is filtered after ultrasonic 60min, successively uses HCl, the deionization of 0.8moL/L Water, DMF are cleaned three times;Cleaning is completed to be placed in homogenizer to stir 20min under 4500r/min, stands 12h, upper layer is taken to disperse Liquid (the 3/4 of total dispersion liquid volume) carries out centrifugation optimization to dispersion liquid, takes supernatant after 10000r/min centrifugation 10min, 3000r/min centrifugation 20min takes precipitating, is dried to precipitating, graphene is made;
By vacuum high-temperature environment, K vaporization, which enters between graphite flake layer, forms KC8, expand graphite flake layer spacing, then benefit Graphene is removed from intercalated graphite with solvent liquid phase stripping method, the graphene sheet layer lamella being prepared out is not only big and structure Completely, the graphene being prepared is having a size of micron level;
(1) it weighs 0.1g graphene to be placed in 100mL dehydrated alcohol, ultrasonic disperse 30min is configured to graphene-ethyl alcohol Dispersion liquid;
(2) it weighs 0.17g silver nitrate and is added in 10mL dehydrated alcohol and make it completely dissolved, the ammonium hydroxide for being 25% by concentration It is slowly dropped in silver nitrate alcoholic solution, guarantees that precipitating just disappears when last drop ammonium hydroxide is added, adjusting pH value is 9, is obtained Silver ammino solution;
(3) silver ammino solution is mixed with graphene-alcohol dispersion liquid, 0.1g polyvinylpyrrolidone (PVP) is added and surpassed Sound disperses 30min, is transferred to temperature for magnetic agitation in 60 DEG C of water-baths, under 60 DEG C of constant temperature stirring conditions, by 60mL's The glucose ethanol solution of 0.3mol/L is slowly dropped in mixed solution using constant pressure funnel, after heating stirring 60min Reaction is terminated, products therefrom is centrifuged under 8000r/min high speed, takes lower sediment, then use deionization by cooled to room temperature Water washing 2-3 times, the dry 5-6h of air dry oven that will finally be deposited in 80 DEG C, obtains composite conducting object;
The composite conducting object being prepared is the compound of graphene-supported nano silver, the graphene table after loading nano silvery Face is smooth, and without fold, edge is not also crimped;The nano-Ag particles of graphene surface load are in uniform spherical shape, greatly It is small uniform, coming into full contact with for nano-Ag particles and graphene is realized, the contact between nano-Ag particles is increased, can be formed more Conductive path, be conducive to the raising of electric conductivity;When electrically conductive composite is dispersed in matrix resin, graphene film is larger because of its Surface area, the gap that a bridge is mounted between nano-Ag particles is equivalent to, using its excellent electric conductivity, in matrix More conductive paths are formd in resin, are formd more electronics flowings, are caused resistivity to decline, electric conductivity improves;
POE is with amorphous structure and with the property of elastomer, therefore POE molecule segment arranges more unordered and molecule Chain activity is strong, and after twin-screw extrusion, graphene microchip is easier to be distributed between molecule segment, makes graphene in POE The probability inside to contact with each other increases, it is easier to form conductive network;
The modified carbon fiber is prepared by the following method:
Carbon fiber is put into dehydrated alcohol, wherein the ratio between carbon fiber and dehydrated alcohol are 1g:5-6mL, ultrasonic disperse 8min, the carbon fiber after dispersion, which is put into acetone, impregnates 12h, and soaking temperature is 82 DEG C, and pulling out and placing into mass fraction is 68% Nitric acid in impregnate 2h, 92 DEG C of soaking temperature, after the completion of immersion, pull out, be placed in 76 DEG C of air dry oven dry 8-9h, obtain To modified carbon fiber;
Modification, which mainly plays the role of three aspects to carbon fiber, prevents these first is that removing the impurity of carbon fiber surface Impurity forms weak binding interface in subsequent plastic master batch preparation process, reduces the mechanical property of plastic master batch;Second is that Strong oxdiative Property sour (nitric acid) carbon fiber surface can be etched, so that fiber surface gully is become changeable depth, the surface area and roughness of increased fiber, Improve the mechanical snap degree of carbon fiber and resin matrix;Third is that generating some polarity oxygen-containing functional groups in carbon fiber surface, increase The compatibility and intermolecular force of carbon fiber surface polarity and carbon fiber and resin matrix;Modified carbon fiber is dispersed in tree In aliphatic radical body, external loads are transmitted on intensity higher carbon fiber from matrix when by external force, and carbon fiber can be effective External loading is eliminated, the toughness of matrix is improved, to improve the toughness of plastic master batch;Meanwhile utilizing the carbon after nitric acid treatment There are good interface adhesion and compatibility between fiber and resin matrix, interface adhesion can carry well in fracture process More energy show excellent mechanical property;
The processing technology of the conductive plastic base particle, includes the following steps:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, by ethylene-octene copolymer, composite conducting object, the antioxidant after drying be added to torque rheometer into In row melt blending, blending temperature is 180-190 DEG C, screw speed 50r/min, incorporation time 10min, then obtains the One mixed material;
Step S3, acrylic resin, modified carbon fiber and the lubricant after drying are added in high-speed mixer, are heated up To 165 DEG C, 5-6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, obtained pellet dry 8- at 80 DEG C Conductive plastic base particle is prepared in 9h;
Wherein, extrusion process temperature parameter is 210 DEG C of area's temperature, 220 DEG C of two area's temperature, 225 DEG C of three area's temperature, 4th area 230 DEG C of temperature, 240 DEG C of five area's temperature, 250 DEG C of six area's temperature.
Embodiment 1
A kind of conductive plastic base particle is formed by the Raw material processing of following parts by weight: 15 parts of ethylene-octene copolymer (POE), 10 parts of acrylic resin, 35 parts of composite conducting object, 15 parts of modified carbon fiber, 0.1 part of antioxidant 1010,0.2 part of PE wax;
The conductive plastic base particle is process by the following method:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, ethylene-octene copolymer, composite conducting object, the antioxidant 1010 after drying are added to torque rheology Instrument carries out in melt blending, and blending temperature is 180 DEG C, screw speed 50r/min, incorporation time 10min, then obtains the One mixed material;
Step S3, acrylic resin, modified carbon fiber and the PE wax after drying are added in high-speed mixer, are warming up to 165 DEG C, 5min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, and obtained pellet is dry at 80 DEG C Conductive plastic base particle is prepared in 8h.
Embodiment 2
A kind of conductive plastic base particle is formed by the Raw material processing of following parts by weight: 18 parts of ethylene-octene copolymer (POE), 12 parts of acrylic resin, 40 parts of composite conducting object, 17.5 parts of modified carbon fiber, 0.2 part of irgasfos 168,0.25 part of zinc stearate;
The conductive plastic base particle is process by the following method:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, ethylene-octene copolymer, composite conducting object, the irgasfos 168 after drying are added to torque rheometer It carries out in melt blending, blending temperature is 185 DEG C, screw speed 50r/min, incorporation time 10min and then obtains first Mixed material;
Step S3, acrylic resin, modified carbon fiber and the zinc stearate after drying are added in high-speed mixer, are risen Temperature mixes 5.5min under the revolving speed of 1000r/min, obtains the second mixture to 165 DEG C;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, and obtained pellet is dry at 80 DEG C Conductive plastic base particle is prepared in 8.5h.
Embodiment 3
A kind of conductive plastic base particle is formed by the Raw material processing of following parts by weight: 20 parts of ethylene-octene copolymer (POE), 14 parts of acrylic resin, 45 parts of composite conducting object, 18 parts of modified carbon fiber, 0.1-0.4 parts of antioxidant 330, monoglyceride 0.2-0.3 Part;
The conductive plastic base particle is process by the following method:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, ethylene-octene copolymer, composite conducting object, the antioxidant 330 after drying are added to torque rheometer It carries out in melt blending, blending temperature is 190 DEG C, screw speed 50r/min, incorporation time 10min and then obtains first Mixed material;
Step S3, acrylic resin, modified carbon fiber and the monoglyceride after drying are added in high-speed mixer, are heated up To 165 DEG C, 6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out Nose towing is at item, by cooling in sink, is cut into pellet using pelleter, and obtained pellet is dry at 80 DEG C Conductive plastic base particle is prepared in 9h.
First hot pressing 2min, the temperature 185 under vulcanizing press of the conductive plastic base particle that embodiment 1-3 is prepared DEG C, then it is cold-pressed 4min at room temperature, obtained specification is that diameter is 7cm, and thickness is the disc-shaped test sample of 3.5mm, to sample It can be carried out following test:
(1) according to plastic resistance rate testing standard GB/T 1410-2006, by the disc-shaped samples dried of 7cm × 3.5mm Afterwards, it is put into megger test box, adjusts suitable voltage and resistance value range, carry out volume resistance test, test voltage 200- 500V calculates volume resistivity according to formula ρ=(R*S)/H, wherein R is resistance test value, and S is test specimens effective area, H For sample thickness, test result is as follows table:
Embodiment 1 Embodiment 2 Embodiment 3
Volume resistivity/Ω cm 0.004 0.005 0.005
It is found that the volume resistivity for the conductive plastic base particle that the present invention is prepared has higher up to 0.005 Ω cm Electric conductivity;
(2) the tensile property test of sample, is carried out, rate of extension 50mm/min by GB/T 1040-2006;Sample Impact property test by GB/T 1043-2008 carry out, U-shaped breach, range 4J, every group of test sample take 5-8 sample into Row test, finally using average value as last test as a result, test result is as follows table:
Embodiment 1 Embodiment 2 Embodiment 3
Tensile strength/MPa 46.7 48.9 48.5
Elongation at break/% 250 320 290
Impact strength/kJm2 49.6 47.5 48.1
It is found that the tensile strength for the plastic master batch that the present invention is prepared is higher than 46.7MPa, elongation at break reaches 250%, impact strength reaches 47.5kJm2, illustrate that conductive plastic base particle of the invention has preferably mechanical property.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (8)

1. a kind of conductive plastic base particle, which is characterized in that formed by the Raw material processing of following parts by weight: ethylene-octene copolymer 15-20 parts, 10-14 parts of acrylic resin, 35-45 parts of composite conducting object, 15-18 parts of modified carbon fiber, antioxidant 0.1-0.4 Part, 0.2-0.3 parts of lubricant;
The conductive plastic base particle is process by following steps:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, ethylene-octene copolymer, composite conducting object, the antioxidant after drying are added to torque rheometer and melted Melt in blending, blending temperature is 180-190 DEG C, screw speed 50r/min, incorporation time 10min, and it is mixed then to obtain first Close material;
Step S3, acrylic resin, modified carbon fiber and the lubricant after drying are added in high-speed mixer, are warming up to 165 DEG C, 5-6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out head It is distracted into item, by cooling in sink, is cut into pellet using pelleter, obtained pellet dry 8-9h at 80 DEG C, Conductive plastic base particle is prepared.
2. a kind of conductive plastic base particle according to claim 1, which is characterized in that the antioxidant be antioxidant 1010, One or more of irgasfos 168, antioxidant 330.
3. a kind of conductive plastic base particle according to claim 1, which is characterized in that the lubricant is PE wax, stearic acid One or more of zinc, monoglyceride.
4. a kind of conductive plastic base particle according to claim 1, which is characterized in that the composite conducting object is by the following method Preparation:
(1) it weighs 0.1g graphene to be placed in 100mL dehydrated alcohol, ultrasonic disperse 30min, is configured to graphene-ethyl alcohol dispersion Liquid;
(2) it weighs 0.17g silver nitrate and is added in 10mL dehydrated alcohol and make it completely dissolved, the ammonium hydroxide for being 25% by concentration is slow It is added drop-wise in silver nitrate alcoholic solution, guarantees that precipitating just disappears when last drop ammonium hydroxide is added, adjusting pH value is 9, obtains silver-colored ammonia Solution;
(3) silver ammino solution is mixed with graphene-alcohol dispersion liquid, 0.1g polyvinylpyrrolidone and ultrasonic disperse is added 30min is transferred to temperature for magnetic agitation in 60 DEG C of water-baths, under 60 DEG C of constant temperature stirring conditions, by the 0.3mol/L's of 60mL Glucose ethanol solution is slowly dropped in mixed solution using constant pressure funnel, and reaction is terminated after heating stirring 60min, from It is so cooled to room temperature, products therefrom is centrifuged under 8000r/min high speed, takes lower sediment, then 2-3 is washed with deionized The dry 5-6h of air dry oven that is secondary, will being finally deposited in 80 DEG C, obtains composite conducting object.
5. a kind of conductive plastic base particle according to claim 4, which is characterized in that the graphene is made by the following method It is standby:
1) 3g metallic potassium and 1.5g graphite are weighed in single-necked flask, is vacuumized in 108 DEG C, it is rear that vacuum condition is kept to be warming up to 156 DEG C of reaction 22h stop heating, 15mL hexamethylene are added after cooling;
2) then to inner addition 30mL dehydrated alcohol, filtered after ultrasonic 60min, successively with the HCl of 0.8moL/L, deionized water, DMF is cleaned three times;Cleaning is completed to be placed in homogenizer to stir 20min under 4500r/min, stands 12h, takes upper layer dispersion liquid, Centrifugation optimization is carried out to dispersion liquid, supernatant is taken after 10000r/min centrifugation 10min, 3000r/min centrifugation 20min takes precipitating, Precipitating is dried, graphene is made.
6. a kind of conductive plastic base particle according to claim 1, which is characterized in that the modified carbon fiber is by the following method Preparation:
Carbon fiber is put into dehydrated alcohol, wherein the ratio between carbon fiber and dehydrated alcohol be 1g:5-6mL, ultrasonic disperse 8min, Carbon fiber after dispersion, which is put into acetone, impregnates 12h, and soaking temperature is 82 DEG C, pulls out and places into the nitric acid that mass fraction is 68% Middle immersion 2h, after the completion of immersion, is pulled out by 92 DEG C of soaking temperature, is placed in 76 DEG C of air dry oven dry 8-9h, is modified Carbon fiber.
7. a kind of processing technology of conductive plastic base particle, which comprises the steps of:
Step S1, in 80 DEG C of vacuum oven, by ethylene-octene copolymer and the dry 10h of acrylic resin;
Step S2, ethylene-octene copolymer, composite conducting object, the antioxidant after drying are added to torque rheometer and melted Melt in blending, blending temperature is 180-190 DEG C, screw speed 50r/min, incorporation time 10min, and it is mixed then to obtain first Close material;
Step S3, acrylic resin, modified carbon fiber and the lubricant after drying are added in high-speed mixer, are warming up to 165 DEG C, 5-6min is mixed under the revolving speed of 1000r/min, obtains the second mixture;
Step S4, the first mixture and the second mixture are added twin-screw extrude melt blending to be modified, through squeezing out head It is distracted into item, by cooling in sink, is cut into pellet using pelleter, obtained pellet dry 8-9h at 80 DEG C, Conductive plastic base particle is prepared.
8. a kind of processing technology of conductive plastic base particle according to claim 7, which is characterized in that squeeze out work in step S4 Skill temperature parameter is 210 DEG C of area's temperature, 220 DEG C of two area's temperature, 225 DEG C of three area's temperature, 230 DEG C of four area's temperature, five Qu Wendu 240 DEG C, 250 DEG C of six area's temperature.
CN201811190503.4A 2018-10-12 2018-10-12 A kind of conductive plastic base particle and its processing technology Pending CN109485983A (en)

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