CN108997605A - A kind of composite conducting foaming agent and preparation method thereof - Google Patents

A kind of composite conducting foaming agent and preparation method thereof Download PDF

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Publication number
CN108997605A
CN108997605A CN201811030188.9A CN201811030188A CN108997605A CN 108997605 A CN108997605 A CN 108997605A CN 201811030188 A CN201811030188 A CN 201811030188A CN 108997605 A CN108997605 A CN 108997605A
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CN
China
Prior art keywords
foaming agent
parts
carbon black
shape
composite conducting
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
Application number
CN201811030188.9A
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Chinese (zh)
Inventor
高攀亮
黄晓红
徐佳楠
余文博
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Ningxia Zhongke Skyline Lightning Protection Research Institute Co Ltd
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Ningxia Zhongke Skyline Lightning Protection Research Institute Co Ltd
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Publication date
Application filed by Ningxia Zhongke Skyline Lightning Protection Research Institute Co Ltd filed Critical Ningxia Zhongke Skyline Lightning Protection Research Institute Co Ltd
Priority to CN201811030188.9A priority Critical patent/CN108997605A/en
Publication of CN108997605A publication Critical patent/CN108997605A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon

Abstract

This application provides a kind of composite conducting foaming agent materials and preparation method thereof, wherein the foaming agent material includes: shape-memory polymer, foaming agent, conductive filler and crosslinking agent；The shape-memory polymer includes: isocyanates and polyether polyol；The conductive filler includes: that acetylene carbon black and Te Migao lead carbon black；It is 45-55 parts that each component is respectively as follows: the shape-memory polymer in parts by weight；The foaming agent is 3-5 parts；The acetylene carbon black is 33-37 parts；It is 38-42 parts that the Te Migao, which leads carbon black,；The crosslinking agent is 0.8-1.2 parts.After composite conducting foaming agent material filling metal material, it can effectively solve the problem that existing metallic ground pole weight is big, corrosion resistance is poor, and the problem that service life is short.

Description

A kind of composite conducting foaming agent and preparation method thereof
Technical field
This application involves conductive coating preparation fields more particularly to a kind of composite conducting foaming agent and preparation method thereof.
Background technique
In order to solve to build the accident smashed by thunder and lightning, usually draw thunder dress on building top and internal installing lightning rod etc. It sets, so that dangerous thunder and lightning is introduced underground by thunder carrying-off device, prevents thunder and lightning from directly contacting building, or hoard and cause under construction Dangerous hidden danger.Thunder carrying-off device introduce underground part be earthing pole, earthing pole refer to the metallic conductor directly contacted with soil or Conductor group is widely used in lightning protection and transmission system.No matter in lightning protection or in transmission system, earthing pole is made For one end of electric current conduction, needs to remain excellent electric conductivity, can effectively transmit thunder and lightning, play the role of drawing thunder.
In the prior art, in order to which guarantee earthing pole draws thunder effect, bulk metal component is generallyd use as earthing pole, but It is the weight that can greatly increase earthing pole in this way, increases the cost of transport and maintenance, and anti-corrosive properties are poor, service life is shorter.For The practicability for improving earthing pole, is usually made as metal shell or metal framework for integral ground pole metal component, utilizes Other conductive materials are filled, and other lightweight non-metallic materials, such as coke blacking etc. is generally mostly used to be filled.
But in practical applications, due to the interference by extraneous factor, there will necessarily be gap between coke powder particles, Conductive and corrosion resistance is caused to be greatly reduced；And coke blacking is coated in the effect of metal outer and persistence is all difficult to ensure, And coke blacking is also difficult to transport and make, overall weight is still bigger after filling, and the substances such as coke blacking are once scattered, and is also easy Pollute surrounding soil.
Summary of the invention
This application provides a kind of composite conducting foaming agents and preparation method thereof, utilize composite conducting foaming agent material After filling metal material, it can effectively solve the problem that existing metallic ground pole weight is big, corrosion resistance is poor, and the problem that service life is short.
The application first aspect provides a kind of composite conducting foaming agent material, and the foaming agent material includes: shape note Recall polymer, foaming agent, conductive filler and crosslinking agent；
The shape-memory polymer includes: isocyanates and polyether polyol；
The conductive filler includes: that acetylene carbon black and Te Migao lead carbon black；
Each component is respectively as follows: in parts by weight
The shape-memory polymer is 45-55 parts；
The foaming agent is 3-5 parts；
The acetylene carbon black is 33-37 parts；
It is 38-42 parts that the Te Migao, which leads carbon black,；
The crosslinking agent is 0.8-1.2 parts.
With reference to first aspect, the first in first aspect can be in realization mode, and the isocyanates is different using toluene two Cyanate or benzhydryl methane diisocyanate.
With reference to first aspect, in second of achievable mode of first aspect, the polyether polyol uses polyoxygenated Propylene glycol or polypropylene oxide triol.
With reference to first aspect, the third in first aspect can be in realization mode, and the foaming agent uses two formyl of azo Amine foaming agent.
With reference to first aspect, in the 4th kind of achievable mode of first aspect, the crosslinking agent is different using peroxidating two Propyl benzene.
The application second aspect provides a kind of preparation method of composite conducting foaming agent material, the preparation method packet It includes:
S100, shape-memory polymer and conductive filler are dried, obtain dry isocyanates, polyether polyols Alcohol, acetylene carbon black and Te Migao lead carbon black；
S200, the isocyanates of the drying and the conductive black of the drying are stirred in organic solvent, mixes 10- After 15 minutes, the first mixture is obtained；
S300, it the Te Migao of the pure and mild drying of the polyether polyols of the drying is led into carbon black stirs in organic solvent, After mixing 10-15 minutes, the second mixture is obtained；
S400, first mixture and second mixture are stirred in cross-linking agent solution, and hybrid reaction 20- After 30 minutes, third mixture is obtained；
S500, foaming agent is slowly added to the third mixture, and stirred at low speed 10-20 minutes, obtain composite conducting Foam agent material.
By the above technology it is found that this application provides a kind of composite conducting foaming agent materials and preparation method thereof, wherein institute Stating foaming agent material includes: shape-memory polymer, foaming agent, conductive filler and crosslinking agent；The shape-memory polymer packet It includes: isocyanates and polyether polyol；The conductive filler includes: that acetylene carbon black and Te Migao lead carbon black；Each component is by weight It is 45-55 parts that number, which is respectively as follows: the shape-memory polymer,；The foaming agent is 3-5 parts；The acetylene carbon black is 33-37 Part；It is 38-42 parts that the Te Migao, which leads carbon black,；The crosslinking agent is 0.8-1.2 parts.In use, using high molecular material as base Body is added conductive filler as conductive materials in matrix, conductive composite polymer material is formed, specifically, due to containing There is shape-memory polymer, therefore, foaming agent material can constitute various shape easily, to meet the external knot for needing to fill Structure；Foaming agent can enable foaming agent material form porous structure；Conductive filler can enable foaming agent material have excellent conduction Property, therefore, it can enable the foaming filled metal structure of agent material that still there is good electric conductivity；Crosslinking agent can enable foaming Each ingredient in agent material uniformly combines.Composite conducting foaming agent density of material provided herein is small, light weight, has well Absorption shock loading ability, corrosion resistance is excellent, heat-resist, conductivity is high and pollution-free to soil.Changing significantly While kind earthing pole overall weight, reduction and maintenance cost, electric conductivity is effectively ensured.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor, It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the preparation method of composite conducting foaming agent material provided by the present application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
For a long time, high molecular material is very popular by its excellent performance, but people always return high molecular material For insulating materials, until the doping type polyacetylene (Poly acetylene, PA) that Hideki Shirakawas in 1977 and Mac are studied can This traditional idea is just broken after electric conductivity to reach bismuth metal, then, the new term for academia occur is " conductive high Molecular material ", meanwhile, its discovery and development creates a novel cross discipline --- conductive polymer subdomains.Later People have found that polyaniline, polyphenylene sulfide, polypyrrole, polythiophene etc. also have similar metallic conductivity in succession again, although leading The research and development of electric high molecular material start to walk compared with Dinner, but it has lighter weight, the available simple and easy methods such as casting, molding of peeping form, are easy to Synthesis and carry out Molecular Design, raw material sources than it is wide the advantages that so that in recent years, conductive ion molecule receives generation The favor of the large quantities of researchers in various countries of boundary, also achieves significant progress.
Conductive polymer material generally can be divided into structural type and compound two class.Structural conductive macromolecular material, such as Polyethylene, although having the conductivity close to copper, since its environmental stability problem is not resolved always, application foundation The Comparision for studying aspect is weak, later in order to overcome environmental stability poor, and the polypyrrole, polythiophene, poly- occurred in succession Aniline and its derivative have become the principal item of conducting polymer.The nineties, part-structure type conductive polymer material is Into practical stage, but in view of the shortcomings that its own and its material is limited by factors, structural conductive macromolecular material The market occupied is still very limited.In contrast, conductive polymeric composite is then quickly grown, and is widely used in medicine Engineering, electromagnetic shielding material, absorbing material, photoelectric material, anti-static material, anti-corrosion of metal material, gas sensitive, electrochromism The exploitation and application of the materials such as material.Compound-type conducting material is that a certain number of lead is added using high molecular polymer as matrix The material that isoelectric substance is made up of different combination process has the processability of high molecular material and the electric conductivity of metal concurrently.With Metal phase ratio, compound-type conducting material has good processability, simple process, corrosion-resistant, resistivity adjustable extent is big, price is low etc. Advantage.
The phenomenon that carbon black/PE composite material shows ptc characteristics is Frydman1945 first discovery, but until 1966, Kohler was mixed with LDPE with carbon black, and after obtaining obviously PTC effect, this phenomenon just causes widely to close Note, and put into the research and development to this material.Conductive foaming agent is and pure as one of carbon black/PE composite material Polymers Phase ratio, it has many valuable performances.Such as, density is small, specific strength is high, has the ability, heat-insulated for absorbing impact load Property is good, sound insulation capabilities are strong.And in foaming process, the special cellular structure of foamed material can be to nanofiller mechanism of action It is relocated, to control in foaming material charge level and conductivity therethrough, and then instructs its application range.Therefore, Conductive foaming composite material may be applied to the numerous areas such as automobile or electronic product as novel substitute products at present.
Although normal metal material conducts electricity very well, but quality is excessive, if biggish conductive member all uses Metal material is made, then will cause various difficulties such as transport, maintenance, installation and disassembly, therefore, it is necessary to use a germplasm Light and conductive substance partially to replace metal material.
Embodiment one
This application provides a kind of composite conducting foaming agent material, the foaming agent material includes:
Shape-memory polymer, foaming agent, conductive filler and crosslinking agent；
The shape-memory polymer includes: isocyanates and polyether polyol；
The conductive filler includes: that acetylene carbon black and Te Migao lead carbon black；
Each component is respectively as follows: in parts by weight
The shape-memory polymer is 45-55 parts；
The foaming agent is 3-5 parts；
The acetylene carbon black is 33-37 parts；
It is 38-42 parts that the Te Migao, which leads carbon black,；
The crosslinking agent is 0.8-1.2 parts.
Composite conducting foaming agent material provided in this embodiment substantially belongs to conductive polymer material, by macromolecule material Material is used as matrix, is added conductive filler as conductive materials in matrix, forms conductive composite polymer material, specifically Ground, due to containing shape-memory polymer, foaming agent material can constitute various shape easily, need to fill out to meet The external structure filled；Foaming agent can enable foaming agent material form porous structure；Conductive filler can enable foaming agent material have Therefore excellent electric conductivity can enable the foaming filled metal structure of agent material still have good electric conductivity；Crosslinking agent Each ingredient in foaming agent material can be enabled uniformly to combine.Composite conducting foaming agent density of material provided herein is small, matter Amount is light, has that the good ability for absorbing shock loading, corrosion resistance are excellent, heat-resist, conductivity is high and to soil without dirt Dye.While substantially improving earthing pole overall weight, reduction and maintenance cost, electric conductivity is effectively ensured.
Embodiment two
The embodiment of the present application provides a kind of composite conducting foaming agent material, comprising: 45 parts of shape-memory polymers；3 parts Foaming agent；33 parts of acetylene carbon blacks；38 parts of Te Migao lead carbon black；0.8 part of crosslinking agent.
Embodiment three
The embodiment of the present application provides a kind of composite conducting foaming agent material, comprising: 55 parts of shape-memory polymers；5 parts Foaming agent；37 parts of acetylene carbon blacks；42 parts of Te Migao lead carbon black；1.2 parts of crosslinking agents.
Example IV
The embodiment of the present application provides a kind of composite conducting foaming agent material, comprising: 50 parts of shape-memory polymers；4 parts Foaming agent；35 parts of acetylene carbon blacks；40 parts of Te Migao lead carbon black；1 part of crosslinking agent.
Embodiment five
The embodiment of the present application provides a kind of composite conducting foaming agent material, and toluene diisocyanate can be selected in the isocyanates One of acid esters and benzhydryl methane diisocyanate.
Embodiment six
The embodiment of the present application provides a kind of composite conducting foaming agent material, and polyoxygenated third can be selected in the polyether polyol One of enediol and polypropylene oxide triol.
Embodiment seven
The embodiment of the present application provides a kind of composite conducting foaming agent material, and the foaming agent is sent out using azodicarbonamide Infusion.
In order to improve bubbling efficiency, chemical foaming agent is generally selected, the application mainly selects azo (AC) foaming agent, excellent Select azodicarbonamide foaming agent.AC foaming agent gas forming amount is big, superior performance and widely used, adaptable.The present embodiment is adopted Foaming agent performance is stable, nonflammable, pollution-free, will not impact to soil, and under normal pressure or pressurized conditions It can foam, and uniform in foaming, pore-forming is tiny, and structure is ideal.
Embodiment eight
This application provides a kind of composite conducting foaming agent material, the crosslinking agent uses cumyl peroxide.
The application uses DPC crosslinking agent, and the substance after crosslinking can be improved hot property, mechanical performance and have very high modulus With heat distortion temperature, heat resistance can be effectively improved, resistance to room temperature shrinkage also can be improved, and can be improved proof stress cracking Property, the transparency and tensile strength.
Embodiment nine
Referring to Fig. 1, a kind of flow chart of the preparation method of composite conducting foaming agent material.
Present embodiments provide a kind of preparation method of composite conducting foaming agent material, which is characterized in that the preparation side Method includes:
S100, shape-memory polymer and conductive filler are dried, obtain dry isocyanates, polyether polyols Alcohol, acetylene carbon black and Te Migao lead carbon black；
Making material is dried, the influence to material purity and subsequent reactions such as moisture can be effectively avoided.
S200, the isocyanates of the drying and the conductive black of the drying are stirred in organic solvent, mixes 10- After 15 minutes, the first mixture is obtained；
S300, it the Te Migao of the pure and mild drying of the polyether polyols of the drying is led into carbon black stirs in organic solvent, After mixing 10-15 minutes, the second mixture is obtained；
S400, first mixture and second mixture are stirred in cross-linking agent solution, and hybrid reaction 20- After 30 minutes, third mixture is obtained；
S500, foaming agent is slowly added to the third mixture, and stirred at low speed 10-20 minutes, obtain composite conducting Foam agent material.
In order to generate uncontrollable bubbles volume to prevent the too fast addition of foaming agent, enables pore-forming undesirable, need to control foaming agent It is slowly added to, and stirs at low speed, to prevent impacting to the structure of matter, or introduce other gaseous impurities.
Construction when, by composite conducting foaming agent material after evenly mixing, after it sufficiently solidifies, carry out using.
Composite conducting foaming agent material provided by the present application and preparation method thereof, can obtain the composite conducting of function admirable Foam agent material, and density is small, light weight, has that the good ability for absorbing shock loading, corrosion resistance be excellent, heat resistance Well, conductivity is high and pollution-free to soil.While substantially improving earthing pole overall weight, reduction and maintenance cost, effectively Guarantee electric conductivity.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following Claim is pointed out.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.

Claims (6)

  1. The agent material 1. a kind of composite conducting foams, which is characterized in that the foaming agent material includes: shape-memory polymer, hair Infusion, conductive filler and crosslinking agent；
    The shape-memory polymer includes: isocyanates and polyether polyol；
    The conductive filler includes: that acetylene carbon black and Te Migao lead carbon black；
    Each component is respectively as follows: in parts by weight
    The shape-memory polymer is 45-55 parts；
    The foaming agent is 3-5 parts；
    The acetylene carbon black is 33-37 parts；
    It is 38-42 parts that the Te Migao, which leads carbon black,；
    The crosslinking agent is 0.8-1.2 parts.
  2. 2. foaming agent material according to claim 1, which is characterized in that
    The isocyanates uses toluene di-isocyanate(TDI) or benzhydryl methane diisocyanate.
  3. 3. foaming agent material according to claim 1, which is characterized in that
    The polyether polyol uses polyoxypropyleneglycol or polypropylene oxide triol.
  4. 4. foaming agent material according to claim 1, which is characterized in that
    The foaming agent uses azodicarbonamide foaming agent.
  5. 5. foaming agent material according to claim 1, which is characterized in that
    The crosslinking agent uses cumyl peroxide.
  6. 6. a kind of preparation method of composite conducting foaming agent material, which is characterized in that the preparation method includes:
    S100, shape-memory polymer and conductive filler are dried, obtain dry isocyanates, polyether polyol, Acetylene carbon black and Te Migao lead carbon black；
    S200, the isocyanates of the drying and the conductive black of the drying are stirred in organic solvent, 10-15 points of mixing Zhong Hou obtains the first mixture；
    S300, it the Te Migao of the pure and mild drying of the polyether polyols of the drying is led into carbon black stirs in organic solvent, mix After 10-15 minutes, the second mixture is obtained；
    S400, first mixture and second mixture are stirred in cross-linking agent solution, and hybrid reaction 20-30 points Zhong Hou obtains third mixture；
    S500, foaming agent is slowly added to the third mixture, and stirred at low speed 10-20 minutes, obtain composite conducting foaming Agent material.
CN201811030188.9A 2018-09-05 2018-09-05 A kind of composite conducting foaming agent and preparation method thereof Pending CN108997605A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1037163A (en) * 1988-04-18 1989-11-15 塞劳泰克斯公司 Carbon black-filled and process of preparing same
CN1656574A (en) * 2002-04-01 2005-08-17 环球产权公司 Electrically conductive polymeric foams and elastomers and methods of manufacture thereof
US20130316164A1 (en) * 2009-02-27 2013-11-28 Peterson Chemical Technology, Inc. Gelatinous Triblock Copolymer Elastomer Particles in Polyurethane Flexible Foams
CN107722212A (en) * 2017-10-19 2018-02-23 广东星星制冷设备有限公司 A kind of flame retardant polyurethane expanded material and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1037163A (en) * 1988-04-18 1989-11-15 塞劳泰克斯公司 Carbon black-filled and process of preparing same
CN1656574A (en) * 2002-04-01 2005-08-17 环球产权公司 Electrically conductive polymeric foams and elastomers and methods of manufacture thereof
US20130316164A1 (en) * 2009-02-27 2013-11-28 Peterson Chemical Technology, Inc. Gelatinous Triblock Copolymer Elastomer Particles in Polyurethane Flexible Foams
CN107722212A (en) * 2017-10-19 2018-02-23 广东星星制冷设备有限公司 A kind of flame retardant polyurethane expanded material and preparation method thereof

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Application publication date: 20181214