CN112898662B - Teflon modified polyethylene sheath material and preparation method thereof - Google Patents

Teflon modified polyethylene sheath material and preparation method thereof Download PDF

Info

Publication number
CN112898662B
CN112898662B CN202110082623.8A CN202110082623A CN112898662B CN 112898662 B CN112898662 B CN 112898662B CN 202110082623 A CN202110082623 A CN 202110082623A CN 112898662 B CN112898662 B CN 112898662B
Authority
CN
China
Prior art keywords
parts
polyethylene
tetrafluoroethylene copolymer
sheath material
stabilizer
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.)
Active
Application number
CN202110082623.8A
Other languages
Chinese (zh)
Other versions
CN112898662A (en
Inventor
王丽敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uv New Material Technology Co ltd
Original Assignee
Uv New Material Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uv New Material Technology Co ltd filed Critical Uv New Material Technology Co ltd
Priority to CN202110082623.8A priority Critical patent/CN112898662B/en
Publication of CN112898662A publication Critical patent/CN112898662A/en
Application granted granted Critical
Publication of CN112898662B publication Critical patent/CN112898662B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • 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
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • 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
    • C08J2205/00Foams characterised by their properties
    • C08J2205/04Foams characterised by their properties characterised by the foam pores
    • C08J2205/048Bimodal pore distribution, e.g. micropores and nanopores coexisting in the same foam
    • 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
    • C08J2323/00Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02Characterised 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
    • C08J2323/04Homopolymers or copolymers of ethene
    • C08J2323/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/18Spheres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

The invention provides a Teflon modified polyethylene sheath material and a preparation method thereof, which belong to the technical field of cable materials and are prepared from the following raw materials in parts by weight: 100-200 parts of polyethylene resin, 120-170 parts of ethylene-tetrafluoroethylene copolymer, 15-30 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1-3 parts of antioxidant, 1-4 parts of plasticizer, 2-4 parts of flame retardant, 1-2 parts of toughening agent and 0.5-1 part of stabilizer. The Teflon modified polyethylene sheath material prepared by the invention has the advantages of simple preparation method, good mechanical property, chemical corrosion resistance, high temperature resistance, ageing resistance, good comprehensive performance and wide application prospect.

Description

Teflon modified polyethylene sheath material and preparation method thereof
Technical Field
The invention relates to the technical field of cable materials, in particular to a Teflon modified polyethylene sheath material and a preparation method thereof.
Background
Teflon is a generic name of Polytetrafluoroethylene (PTFE), which is abbreviated as PTFE (commonly known as "Plastic King, hara") and has the chemical formula- (CF) 2 -CF 2 ) n -. Trade name
Figure BDA0002909618770000011
In China, the trademark "Teflon" is also called "Teflon", etc. for sound production, and is transliterated as "Teflon".
Products of this material are generally referred to collectively as "non-stick coatings"; is an artificial synthetic polymer material using fluorine to replace all hydrogen atoms in polyethylene. The material has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents, and is almost insoluble in all solvents. Meanwhile, polytetrafluoroethylene has the characteristic of high temperature resistance, and has extremely low friction coefficient, so the polytetrafluoroethylene can be used as a lubricating effect and also is an ideal paint which is not sticky to the inner layers of a pot and a water pipe.
The high temperature resistance and chemical stability of the composite material can be widely applied to special fields of optical cables, acid resistance, alkali resistance and various organic solvents are generally realized by firstly compressing and then sintering a Teflon material at high temperature, mixing Teflon powder with processing auxiliary materials to form paste, then extruding the paste into a thin-wall material at high pressure, heating to remove volatile processing auxiliary materials and finally sintering the thin-wall material, however, in the actual preparation process, the condition of uneven quality often occurs, so that the performance of the sheath material is influenced.
Disclosure of Invention
The invention aims to provide a Teflon modified polyethylene sheath material and a preparation method thereof, which have good anti-aging effect.
The technical scheme of the invention is realized as follows:
the invention provides a Teflon modified polyethylene sheath material which is prepared from the following raw materials in parts by weight: 100-200 parts of polyethylene resin, 120-170 parts of ethylene-tetrafluoroethylene copolymer, 15-30 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1-3 parts of antioxidant, 1-4 parts of plasticizer, 2-4 parts of flame retardant, 1-2 parts of toughening agent and 0.5-1 part of stabilizer;
the porous polyethylene-tetrafluoroethylene copolymer microsphere is prepared by the following method:
s1, preparing reaction gas: ethylene and tetrafluoroethylene are mixed to obtain reaction gas;
s2, preparing polyethylene-tetrafluoroethylene copolymer microspheres: the method comprises the steps of 1, replacing a dried reactor with high-purity nitrogen for 2-3 times, taking liquid alkane as a solvent, introducing reaction gas, obtaining a saturated solution after the solvent is saturated in gas absorption, adding a catalyst, reacting at 40-50 ℃ while stirring at a high speed, adding sulfuric acid/diethyl ether mixed solution after 3-7 hours to terminate the reaction, washing the obtained copolymer with diethyl ether, filtering, and drying to obtain polyethylene-tetrafluoroethylene copolymer microspheres;
s3, preparing porous polyethylene-tetrafluoroethylene copolymer microspheres: dispersing the polyethylene-tetrafluoroethylene copolymer microsphere in water, adding a pore-forming agent and a dispersing agent, emulsifying, filtering and drying to obtain the porous polyethylene-tetrafluoroethylene copolymer microsphere.
As a further improvement of the invention, the invention is prepared from the following raw materials in parts by weight: 120-180 parts of polyethylene resin, 140-150 parts of ethylene-tetrafluoroethylene copolymer, 19-25 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1.5-2.5 parts of antioxidant, 2-3 parts of plasticizer, 2.5-3.5 parts of flame retardant, 1.2-1.8 parts of toughening agent and 0.6-0.8 part of stabilizer.
As a further improvement of the invention, the invention is prepared from the following raw materials in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of antioxidant, 2.5 parts of plasticizer, 3 parts of flame retardant, 1.6 parts of toughening agent and 0.7 part of stabilizer.
As a further improvement of the present invention, the volume ratio of ethylene to tetrafluoroethylene in step S1 is 1: (0.2-0.5).
As a further improvement of the invention, the liquid alkane in the step S2 is selected from one or a combination of a plurality of cyclohexane, n-hexane, n-heptane, cycloheptane, n-octane, cyclooctane and n-undecane; the catalyst is triethylaluminum and dicumyl peroxide, and the mass ratio is 2: (1-3) the addition amount is 2-4wt% of the saturated solution; the rotating speed of the high-speed stirring is 1500-2500r/min, the content of sulfuric acid in the sulfuric acid/diethyl ether mixed solution is 2-5wt%, and the rest is diethyl ether; the drying temperature is 50-90 ℃.
As a further improvement of the present invention, the porogen in step S3 includes a macroporous porogen and a microporous porogen, and the mass ratio is 3: (2-5) the macroporous pore-forming agent is selected from one of polyoxyethylene sorbitan fatty acid ester, polyethylene glycol octyl phenyl ether and sorbitan fatty acid ester; the micropore pore-forming agent is selected from one or a combination of a plurality of cetyl alcohol, stearic acid, povidone, urea and polyvinylpyrrolidone; the dispersing agent is one or a combination of several of polyethylene glycol 200, polyethylene glycol 400, polyethylene glycol 600 and polyvinyl alcohol; the mass ratio of the polyethylene-tetrafluoroethylene copolymer microsphere to the pore-foaming agent to the dispersing agent is 100: (1-3): (2-7); the emulsifying condition is 10000-12000r/min for 2-4min.
As a further improvement of the present invention, the antioxidant is selected from one or a combination of several of tris (2, 4-di-t-butylphenyl) phosphite, diphenylamine, p-phenylenediamine and dihydroquinoline, 2, 6-t-butyl-4-methylphenol, bis (3, 5-t-butyl-4-hydroxyphenyl) sulfide, tetrakis [ beta- (3, 5-t-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol, trioctyl ester, tridecyl ester, triodes and tricetyl alcohol ester; the flame retardant is one or a combination of more of magnesium hydroxide, aluminum hydroxide, TDCPP, ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, MPP, zinc borate, decabromodiphenylethane, coated red phosphorus and TBC; the plasticizer is selected from one or a combination of a plurality of di (2-ethylhexyl) phthalate, diisononyl phthalate, dioctyl phthalate, di-n-octyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate and dibutyl phthalate.
As a further improvement of the invention, the toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1: (2-3); the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is (1-4): 1.
the invention further protects the Teflon modified polyethylene sheath material, which comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, an antioxidant, a plasticizer, a flame retardant, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
As a further improvement of the invention, the mixing temperature is 95-105 ℃ and the mixing time is 5-10min.
The invention has the following beneficial effects: the porous polyethylene-tetrafluoroethylene copolymer microsphere with high specific surface area is prepared, macropores and mesopores are formed through the pore-forming agent, polytetrafluoroethylene micropowder is adsorbed in pore channels of the porous polyethylene-tetrafluoroethylene copolymer microsphere, and the porous polyethylene-tetrafluoroethylene copolymer microsphere is added into a polyethylene sheath material, has good compatibility with polyethylene and can be well dispersed in the polyethylene material, so that polytetrafluoroethylene has good modification effect on the polyethylene sheath material, and the acid resistance, alkali resistance, chemical solvent resistance, high-temperature resistance, flame retardance and the like of the polyethylene material are improved.
According to the invention, by adjusting the proportion of the macroporous pore-forming agent and the microporous pore-forming agent, macropores and mesopores with different proportions are formed on the surface of the porous polyethylene-tetrafluoroethylene copolymer microsphere, polytetrafluoroethylene micropowder with larger particle size is adsorbed in the macropores, and other modifiers with smaller particle size, such as an antioxidant, a plasticizer and the like, are adsorbed in the mesopores, so that various materials incompatible with polyethylene materials are adsorbed into the pore channels of the microsphere, the incompatible reaction is reduced, and the mechanical property and the processing property of the Teflon modified polyethylene material are improved.
The Teflon modified polyethylene sheath material prepared by the invention has the advantages of simple preparation method, good mechanical property, chemical corrosion resistance, high temperature resistance, ageing resistance, good comprehensive performance and wide application prospect.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Preparation example 1 porous polyethylene-tetrafluoroethylene copolymer microsphere
The preparation method comprises the following steps:
s1, preparing reaction gas: ethylene and tetrafluoroethylene were mixed in a volume ratio of 1:0.2, obtaining reaction gas;
s2, preparing polyethylene-tetrafluoroethylene copolymer microspheres: the method comprises the steps of 1, replacing a dried reactor with high-purity nitrogen for 2 times, taking n-hexane as a solvent, introducing reaction gas, obtaining a saturated solution after the solvent is saturated in gas absorption, adding a catalyst, reacting at 40 ℃ while stirring at a rotating speed of 1500r/min, adding a sulfuric acid/diethyl ether mixed solution (the content of sulfuric acid is 2wt%, and the rest is diethyl ether) after 3 hours, terminating the reaction, washing the obtained copolymer with diethyl ether, filtering, and drying at 50 ℃ to obtain polyethylene-tetrafluoroethylene copolymer microspheres; the catalyst is triethylaluminum and dicumyl peroxide, and the mass ratio is 2:1, the addition amount is 2wt% of the saturated solution;
s3, preparing porous polyethylene-tetrafluoroethylene copolymer microspheres: dispersing 100g of polyethylene-tetrafluoroethylene copolymer microsphere in water, adding 1g of pore-forming agent and 2g of polyethylene glycol 200, emulsifying for 2min at 10000r/min, filtering, and drying to obtain the porous polyethylene-tetrafluoroethylene copolymer microsphere. The pore-forming agent comprises macroporous pore-forming agent polyethylene glycol octyl phenyl ether and microporous pore-forming agent Kong Jiju ketone, and the mass ratio is 3:2.
preparation example 2 porous polyethylene-tetrafluoroethylene copolymer microsphere
The preparation method comprises the following steps:
s1, preparing reaction gas: ethylene and tetrafluoroethylene were mixed in a volume ratio of 1:0.5, obtaining reaction gas;
s2, preparing polyethylene-tetrafluoroethylene copolymer microspheres: 3 times of replacement of the dried reactor with high-purity nitrogen, taking n-undecane as a solvent, introducing reaction gas, after the solvent is saturated in gas absorption, obtaining a saturated solution, adding a catalyst, reacting at 50 ℃ while stirring at 2500r/min, adding sulfuric acid/diethyl ether mixed solution (the content of sulfuric acid is 5wt%, and the rest is diethyl ether) after 7 hours, terminating the reaction, washing the obtained copolymer with diethyl ether, filtering, and drying at 90 ℃ to obtain the polyethylene-tetrafluoroethylene copolymer microsphere;
s3, preparing porous polyethylene-tetrafluoroethylene copolymer microspheres: dispersing 100g of polyethylene-tetrafluoroethylene copolymer microsphere in water, adding 3g of pore-forming agent and 7g of polyvinyl alcohol, emulsifying for 4min at 12000r/min, filtering and drying to obtain the porous polyethylene-tetrafluoroethylene copolymer microsphere. The pore-forming agent comprises macroporous pore-forming agent polyoxyethylene sorbitan fatty acid ester and microporous pore-forming agent polyvinylpyrrolidone, and the mass ratio is 3:5.
example 1
The raw materials comprise the following components in parts by weight: 100 parts of polyethylene resin, 120 parts of ethylene-tetrafluoroethylene copolymer, 15 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1 part of tricetyl (cetyl alcohol) ester, 1 part of dicyclohexyl phthalate, 2 parts of octabromoether, 1 part of toughening agent and 0.5 part of stabilizer. The toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1:2; the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is 1:1.
the preparation method comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, tricetyl alcohol ester, dicyclohexyl phthalate, octabromoether, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing at the temperature of 95 ℃ for 5min to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
Example 2
The raw materials comprise the following components in parts by weight: 200 parts of polyethylene resin, 170 parts of ethylene-tetrafluoroethylene copolymer, 30 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 3 parts of tri (dodecanol) ester, 4 parts of di (2-ethylhexyl) phthalate, 4 parts of hexabromocyclododecane, 2 parts of toughening agent and 1 part of stabilizer. The toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1:3, a step of; the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is 4:1.
the preparation method comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, tri (dodecanol) ester, di (2-ethylhexyl) phthalate, hexabromocyclododecane, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing at 105 ℃ for 10min to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
Example 3
The raw materials comprise the following components in parts by weight: 120 parts of polyethylene resin, 140 parts of ethylene-tetrafluoroethylene copolymer, 19 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1.5 parts of tricetyl (cetyl alcohol) ester, 2 parts of dioctyl phthalate, 2.5 parts of flame retardant MPP, 1.2 parts of toughening agent and 0.6 part of stabilizer. The toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1:2.2; the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is 2:1.
the preparation method comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, tricetyl (cetyl alcohol) ester, dioctyl phthalate, a flame retardant MPP, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing at the temperature of 97 ℃ for 6min to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
Example 4
The raw materials comprise the following components in parts by weight: 180 parts of polyethylene resin, 150 parts of ethylene-tetrafluoroethylene copolymer, 25 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2.5 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 3 parts of di Zhong Xin phthalate, 3.5 parts of flame retardant MPP, 1.8 parts of toughening agent and 0.8 part of stabilizer. The toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1:2.8; the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is 3:1.
the preparation method comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, pentaerythritol tetra [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], di-sec-octyl phthalate, a flame retardant MPP, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing at the temperature of 102 ℃ for 9min to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
Example 5
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 2.5 parts of dioctyl phthalate, 3 parts of flame retardant TDCPP, 1.6 parts of toughening agent and 0.7 part of stabilizer. The toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1:2.5; the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is 2.5:1.
the preparation method comprises the following steps:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, pentaerythritol tetra [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], dioctyl phthalate, a flame retardant TDCPP, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing at the temperature of 100 ℃ for 7min to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
Example 6
In comparison with example 5, the toughening agent was polyvinyl alcohol, and the other conditions were not changed.
Example 7
Compared with example 5, the toughening agent is polyphenyl ether ketone, and other conditions are not changed.
Example 8
In comparison with example 5, the stabilizer was magnesium stearate, and the other conditions were not changed.
Example 9
In comparison with example 5, the stabilizer was dibasic lead stearate, and the other conditions were unchanged.
Comparative example 1
In comparison with example 5, no porous polyethylene-tetrafluoroethylene copolymer microsphere was added, and the other conditions were not changed.
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 167 parts of ethylene-tetrafluoroethylene copolymer, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 2.5 parts of dioctyl phthalate, 3 parts of flame retardant TDCPP, 1.6 parts of toughening agent and 0.7 part of stabilizer.
Comparative example 2
In comparison with example 5, no toughening agent was added and the other conditions were not changed.
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 4.1 parts of dioctyl phthalate, 3 parts of flame retardant TDCPP and 0.7 part of stabilizer.
Comparative example 3
In comparison with example 5, no dioctyl phthalate was added and the other conditions were unchanged.
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 3 parts of flame retardant TDCPP, 4.1 parts of toughening agent and 0.7 part of stabilizer.
Comparative example 4
In comparison with example 5, no stabilizer was added and the other conditions were not changed.
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 2.5 parts of dioctyl phthalate, 3.7 parts of flame retardant TDCPP and 1.6 parts of toughening agent.
Comparative example 5
In comparison with example 5, no flame retardant TDCPP was added and the other conditions were unchanged.
The raw materials comprise the following components in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of pentaerythritol tetrakis [ beta- (3, 5-tertiary butyl-4-hydroxyphenyl) propionate ], 2.5 parts of dioctyl phthalate, 4.1 parts of toughening agent and 3.7 parts of stabilizer.
Test example 1 mechanical test
The mechanical properties of the sheath materials and commercially available sheath materials obtained in examples 1 to 9 and comparative examples 1 to 5 of the present invention were tested, and the tensile strength and elongation at break were measured according to JISK6251, and the results are shown in Table 1.
TABLE 1
Figure BDA0002909618770000111
Figure BDA0002909618770000121
As shown in the table above, the Teflon modified polyethylene sheath material prepared by the embodiment of the invention has good mechanical properties.
Test example 2 volume resistivity test
The jacket materials and commercial jacket materials prepared in examples 1 to 9 and comparative examples 1 to 5 of the present invention were subjected to insulation property test, and the volume resistivity was measured at 20℃according to GB/15662-1995 standard, and the results are shown in Table 2.
TABLE 2
Group of Volume resistivity (10) 16 Ω﹒m)
Example 1 57.2
Example 2 59.1
Example 3 60.5
Example 4 59.7
Example 5 61.5
Example 6 56.4
Example 7 57.2
Example 8 55.7
Example 9 56.0
Comparative example 1 22.4
Comparative example 2 32.5
Comparative example 3 35.7
Comparative example 4 50.2
Comparative example 5 55.6
Commercially available 43.5
As shown in the table above, the Teflon modified polyethylene sheath material prepared by the embodiment of the invention has good insulativity.
Test example 3 flame retardancy test
The jacket materials and commercial jacket materials prepared in examples 1 to 9 and comparative examples 1 to 5 of the present invention were subjected to flame retardant property test, oxygen index test according to GB/T2406-1993, and the results are shown in Table 3.
TABLE 3 Table 3
Group of Flame retardant oxygen index
Example 1 46.0
Example 2 46.2
Example 3 46.9
Example 4 46.7
Example 5 47.5
Example 6 45.7
Example 7 45.2
Example 8 31.2
Example 9 32.5
Comparative example 1 29.4
Comparative example 2 42.5
Comparative example 3 43.1
Comparative example 4 31.0
Comparative example 5 30.2
Commercially available 20.3
As shown in the table above, the Teflon modified polyethylene sheath material prepared by the embodiment of the invention has good flame retardant property.
Compared with example 5, the toughening agents in examples 6 and 7 are respectively polyphenyl ether ketone or polyvinyl alcohol, and compared with example 5, the toughening agent in comparative example 2 is not added, so that the mechanical properties of the toughening agent are obviously reduced, and the addition of polyphenyl ether ketone and polyvinyl alcohol has a synergistic effect.
Examples 8 and 9 are respectively magnesium stearate or dibasic lead stearate, and comparative example 4 is lower in flame retardant property and volume resistivity than example 5 without adding a stabilizer, and thus the addition of magnesium stearate and dibasic lead stearate has a synergistic effect.
Compared with the example 5, the comparative example 1 is not added with the porous polyethylene-tetrafluoroethylene copolymer microsphere, the mechanical property, the flame retardant property and the volume resistivity of the porous polyethylene-tetrafluoroethylene copolymer microsphere are obviously reduced, and the porous polyethylene-tetrafluoroethylene copolymer microsphere can adsorb the modifier, so that the compatibility of the modifier in a polyethylene material system is improved, and the mechanical property and the comprehensive property are improved.
Compared with the example 5, the comparative examples 2 and 3 are respectively free from adding the toughening agent and the plasticizer, the mechanical property is reduced, and the addition of the toughening agent and the plasticizer has a synergistic effect.
In comparative examples 4 and 5, compared with example 5, the flame retardant performance was lowered without adding the stabilizer and the flame retardant, respectively, and it was found that the addition of the stabilizer and the flame retardant had a synergistic effect.
Compared with the prior art, the porous polyethylene-tetrafluoroethylene copolymer microsphere with high specific surface area is prepared, macropores and mesopores are formed through the pore-forming agent, polytetrafluoroethylene micropowder is adsorbed in pore channels of the porous polyethylene-tetrafluoroethylene copolymer microsphere, and the porous polyethylene-tetrafluoroethylene copolymer microsphere is added into a polyethylene sheath material, has good compatibility with polyethylene and can be well dispersed in the polyethylene material, so that polytetrafluoroethylene has good modification effect on the polyethylene sheath material, and the acid resistance, alkali resistance, chemical solvent resistance, high-temperature resistance, flame retardance and the like of the polyethylene material are improved.
According to the invention, by adjusting the proportion of the macroporous pore-forming agent and the microporous pore-forming agent, macropores and mesopores with different proportions are formed on the surface of the porous polyethylene-tetrafluoroethylene copolymer microsphere, polytetrafluoroethylene micropowder with larger particle size is adsorbed in the macropores, and other modifiers with smaller particle size, such as an antioxidant, a plasticizer and the like, are adsorbed in the mesopores, so that various materials incompatible with polyethylene materials are adsorbed into the pore channels of the microsphere, the incompatible reaction is reduced, and the mechanical property and the processing property of the Teflon modified polyethylene material are improved.
The Teflon modified polyethylene sheath material prepared by the invention has the advantages of simple preparation method, good mechanical property, chemical corrosion resistance, high temperature resistance, ageing resistance, good comprehensive performance and wide application prospect.

Claims (10)

1. The Teflon modified polyethylene sheath material is characterized by being prepared from the following raw materials in parts by weight: 100-200 parts of polyethylene resin, 120-170 parts of ethylene-tetrafluoroethylene copolymer, 15-30 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1-3 parts of antioxidant, 1-4 parts of plasticizer, 2-4 parts of flame retardant, 1-2 parts of toughening agent and 0.5-1 part of stabilizer;
the porous polyethylene-tetrafluoroethylene copolymer microsphere is prepared by the following method:
s1, preparing reaction gas: ethylene and tetrafluoroethylene are mixed to obtain reaction gas;
s2, preparing polyethylene-tetrafluoroethylene copolymer microspheres: the method comprises the steps of 1, replacing a dried reactor with high-purity nitrogen for 2-3 times, taking liquid alkane as a solvent, introducing reaction gas, obtaining a saturated solution after the solvent is saturated in gas absorption, adding a catalyst, reacting at 40-50 ℃ while stirring at a high speed, adding sulfuric acid/diethyl ether mixed solution after 3-7 hours to terminate the reaction, washing the obtained copolymer with diethyl ether, filtering, and drying to obtain polyethylene-tetrafluoroethylene copolymer microspheres;
s3, preparing porous polyethylene-tetrafluoroethylene copolymer microspheres: dispersing the polyethylene-tetrafluoroethylene copolymer microsphere in water, adding a pore-forming agent and a dispersing agent, emulsifying, filtering and drying to obtain the porous polyethylene-tetrafluoroethylene copolymer microsphere.
2. The teflon modified polyethylene sheath material according to claim 1, which is prepared from the following raw materials in parts by weight: 120-180 parts of polyethylene resin, 140-150 parts of ethylene-tetrafluoroethylene copolymer, 19-25 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 1.5-2.5 parts of antioxidant, 2-3 parts of plasticizer, 2.5-3.5 parts of flame retardant, 1.2-1.8 parts of toughening agent and 0.6-0.8 part of stabilizer.
3. The teflon modified polyethylene sheath material according to claim 2, which is prepared from the following raw materials in parts by weight: 150 parts of polyethylene resin, 145 parts of ethylene-tetrafluoroethylene copolymer, 22 parts of porous polyethylene-tetrafluoroethylene copolymer microsphere, 2 parts of antioxidant, 2.5 parts of plasticizer, 3 parts of flame retardant, 1.6 parts of toughening agent and 0.7 part of stabilizer.
4. The teflon modified polyethylene sheath material of claim 1, wherein the volume ratio of ethylene to tetrafluoroethylene in step S1 is 1: (0.2-0.5).
5. The teflon-modified polyethylene sheath material according to claim 1, wherein the liquid alkane in step S2 is selected from one or a combination of several of cyclohexane, n-hexane, n-heptane, cycloheptane, n-octane, cyclooctane, n-undecane; the catalyst is triethylaluminum and dicumyl peroxide, and the mass ratio is 2: (1-3) the addition amount is 2-4wt% of the saturated solution; the rotating speed of the high-speed stirring is 1500-2500r/min, the content of sulfuric acid in the sulfuric acid/diethyl ether mixed solution is 2-5wt%, and the rest is diethyl ether; the drying temperature is 50-90 ℃.
6. The teflon modified polyethylene sheath material according to claim 1, wherein the porogen in step S3 comprises a macroporous porogen and a microporous porogen with a mass ratio of 3: (2-5) the macroporous pore-forming agent is selected from one of polyoxyethylene sorbitan fatty acid ester, polyethylene glycol octyl phenyl ether and sorbitan fatty acid ester; the micropore pore-forming agent is selected from one or a combination of a plurality of cetyl alcohol, stearic acid, povidone, urea and polyvinylpyrrolidone; the dispersing agent is one or a combination of several of polyethylene glycol 200, polyethylene glycol 400, polyethylene glycol 600 and polyvinyl alcohol; the mass ratio of the polyethylene-tetrafluoroethylene copolymer microsphere to the pore-foaming agent to the dispersing agent is 100: (1-3): (2-7); the emulsifying condition is 10000-12000r/min for 2-4min.
7. The teflon modified polyethylene sheath material according to claim 1, wherein the antioxidant is selected from one or a combination of several of tris (2, 4-di-tert-butylphenyl) phosphite, diphenylamine, p-phenylenediamine and dihydroquinoline, 2, 6-tert-butyl-4-methylphenol, bis (3, 5-tert-butyl-4-hydroxyphenyl) sulfide, tetrakis [ beta- (3, 5-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol, trioctyl ester, tridecyl ester, tricodecyl alcohol ester and tricetyl alcohol ester; the flame retardant is one or a combination of more of magnesium hydroxide, aluminum hydroxide, TDCPP, ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, MPP, zinc borate, decabromodiphenylethane, coated red phosphorus and TBC; the plasticizer is selected from one or a combination of a plurality of di (2-ethylhexyl) phthalate, diisononyl phthalate, dioctyl phthalate, di-n-octyl phthalate, butyl benzyl phthalate, di-sec-octyl phthalate, dicyclohexyl phthalate and dibutyl phthalate.
8. The teflon modified polyethylene sheath material according to claim 1, wherein the toughening agent is a mixture of polyphenyl ether ketone and polyvinyl alcohol, and the mass ratio is 1: (2-3); the stabilizer is a mixture of magnesium stearate and dibasic lead stearate, and the mass ratio is (1-4): 1.
9. a process for preparing a teflon modified polyethylene sheath material as claimed in any one of claims 1 to 8, comprising the steps of:
s1, mixing an ethylene-tetrafluoroethylene copolymer, porous polyethylene-tetrafluoroethylene copolymer microspheres, an antioxidant, a plasticizer, a flame retardant, a toughening agent and a stabilizer, and then adding the mixture into an internal mixer for mixing to obtain a mixed material;
s2, mixing the mixed materials and the polyethylene resin, extruding the mixture into a molten state by a double-screw extruder, extruding the mixture into an injection molding machine after the mixed materials are completely molten, and performing injection molding to obtain the high-temperature-resistant polyethylene resin.
10. The method according to claim 9, wherein the kneading temperature is 95 to 105 ℃ for 5 to 10 minutes.
CN202110082623.8A 2021-01-21 2021-01-21 Teflon modified polyethylene sheath material and preparation method thereof Active CN112898662B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110082623.8A CN112898662B (en) 2021-01-21 2021-01-21 Teflon modified polyethylene sheath material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110082623.8A CN112898662B (en) 2021-01-21 2021-01-21 Teflon modified polyethylene sheath material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN112898662A CN112898662A (en) 2021-06-04
CN112898662B true CN112898662B (en) 2023-07-04

Family

ID=76118076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110082623.8A Active CN112898662B (en) 2021-01-21 2021-01-21 Teflon modified polyethylene sheath material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN112898662B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186909A (en) * 2008-10-16 2011-09-14 旭硝子株式会社 Process for producing porous ethylene/tetrafluoroethylene copolymer and porous ethylene/tetrafluoroethylene copolymer
CN105924758A (en) * 2016-06-16 2016-09-07 中广核三角洲(江苏)塑化有限公司 Irradiation-crosslinkable low-density modified polyethylene-tetrafluoroethylene copolymer insulating material
CN107200906A (en) * 2017-06-07 2017-09-26 深圳众厉电力科技有限公司 A kind of CABLE MATERIALS with antimildew and antibacterial function

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102186909A (en) * 2008-10-16 2011-09-14 旭硝子株式会社 Process for producing porous ethylene/tetrafluoroethylene copolymer and porous ethylene/tetrafluoroethylene copolymer
CN105924758A (en) * 2016-06-16 2016-09-07 中广核三角洲(江苏)塑化有限公司 Irradiation-crosslinkable low-density modified polyethylene-tetrafluoroethylene copolymer insulating material
CN107200906A (en) * 2017-06-07 2017-09-26 深圳众厉电力科技有限公司 A kind of CABLE MATERIALS with antimildew and antibacterial function

Also Published As

Publication number Publication date
CN112898662A (en) 2021-06-04

Similar Documents

Publication Publication Date Title
CN103013021B (en) A kind of preparation method of phosphorus flame retardant etc. of crosslinked with silicane
CN109593349B (en) Flame-retardant thermoplastic dynamic vulcanized silicone rubber and preparation method thereof
CN109705568B (en) Low-odor low-precipitation flame-retardant polyamide material, and preparation method and application thereof
CN112358730B (en) Silicone master batch for improving low-smoke halogen-free flame-retardant polyolefin cable port mold precipitation and preparation method thereof
CN111621088A (en) Conductive polypropylene material and preparation method thereof
CN111647218A (en) Ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
CN108003444B (en) Low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
CN108059772A (en) A kind of low smell, it is low distribute, high heat-resisting polypropylene composite material and preparation method thereof
CN112625361A (en) Low-odor high-thermal-oxidative-aging-resistance glass fiber reinforced polypropylene composite material and preparation method thereof
CN112898662B (en) Teflon modified polyethylene sheath material and preparation method thereof
CN107987430B (en) Oil-resistant high-temperature-resistant modified polyvinyl chloride composite material and preparation method thereof
CN111607180B (en) Environment-friendly comprehensive accelerator pre-dispersed master batch and preparation method and application thereof
CN111704770A (en) Flame-retardant PP plastic
CN112034570A (en) Low-smoke halogen-free self-supporting butterfly-shaped leading-in optical cable of non-metal reinforcement
CN103980692A (en) Polyphenyl ether resin alloy material for pillow inner framework of massage chair and preparation method thereof
CN112794934B (en) Low molecular weight polyvinyl chloride, preparation method, sheath material and preparation method
CN114920988B (en) Phenolphthalein-based flame retardant char forming agent composition, preparation method thereof and application thereof in nylon 66
CN116589779B (en) Polyolefin halogen-free flame-retardant master batch
CN117645764B (en) High-temperature-resistant PVC pipe and manufacturing process thereof
CN116003888B (en) Flame-retardant rubber cable sheath material and preparation method thereof
CN114957931B (en) High-anti-dripping flame-retardant thermoplastic polyester elastomer composite material and preparation method thereof
CN117343452A (en) High-flame-retardance cable and preparation method thereof
CN113667211A (en) Micro-crosslinked radiation-resistant flame-retardant cable sheath material and preparation thereof
KR101164342B1 (en) Polypropylene resin composition and Preparation Method thereof
CN112552617A (en) Cold-resistant PVC cable material and preparation method and application 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
TA01 Transfer of patent application right

Effective date of registration: 20230609

Address after: 054000 South of Huangtui Er Village, Ningbei Street, Ningjin County, Xingtai City, Hebei Province

Applicant after: UV NEW MATERIAL TECHNOLOGY Co.,Ltd.

Address before: 510000 room 612-305, Puyuan District, 135 Xingang West Road, Haizhu District, Guangzhou City, Guangdong Province

Applicant before: Wang Limin

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant