CN110628116A - Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe - Google Patents
Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe Download PDFInfo
- Publication number
- CN110628116A CN110628116A CN201910994369.1A CN201910994369A CN110628116A CN 110628116 A CN110628116 A CN 110628116A CN 201910994369 A CN201910994369 A CN 201910994369A CN 110628116 A CN110628116 A CN 110628116A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- composite material
- flame
- graphite
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 92
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 72
- -1 polyethylene Polymers 0.000 title claims abstract description 72
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 72
- 239000003063 flame retardant Substances 0.000 title claims abstract description 54
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 66
- 239000010439 graphite Substances 0.000 claims abstract description 66
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 52
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 48
- XZTOTRSSGPPNTB-UHFFFAOYSA-N phosphono dihydrogen phosphate;1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(N)=N1.OP(O)(=O)OP(O)(O)=O XZTOTRSSGPPNTB-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002216 antistatic agent Substances 0.000 claims abstract description 36
- 239000004843 novolac epoxy resin Substances 0.000 claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 23
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 27
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 239000012752 auxiliary agent Substances 0.000 claims description 20
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 17
- 229910017604 nitric acid Inorganic materials 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- 230000002745 absorbent Effects 0.000 claims description 10
- 239000002250 absorbent Substances 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 10
- 239000012286 potassium permanganate Substances 0.000 claims description 10
- 239000004831 Hot glue Substances 0.000 claims description 8
- 239000007800 oxidant agent Substances 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 5
- AFINAILKDBCXMX-PBHICJAKSA-N (2s,3r)-2-amino-3-hydroxy-n-(4-octylphenyl)butanamide Chemical compound CCCCCCCCC1=CC=C(NC(=O)[C@@H](N)[C@@H](C)O)C=C1 AFINAILKDBCXMX-PBHICJAKSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Chemical class 0.000 claims description 4
- 125000003282 alkyl amino group Chemical group 0.000 claims description 4
- 150000007942 carboxylates Chemical class 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 150000002334 glycols Chemical class 0.000 claims description 4
- 229920001223 polyethylene glycol Chemical class 0.000 claims description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 19
- 229920003023 plastic Polymers 0.000 description 19
- 239000004033 plastic Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 18
- 239000011159 matrix material Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 10
- 239000006229 carbon black Substances 0.000 description 9
- 230000003068 static effect Effects 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007655 standard test method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a flame-retardant wear-resistant antistatic polyethylene composite material, a preparation method and a pipe, wherein the composite material comprises the following components in parts by weight: 100 parts by weight of high-density polyethylene, wherein the high-density polyethylene is subjected to ultraviolet irradiation treatment; 15 to 20 parts by weight of melamine pyrophosphate; 10 to 15 parts by weight of graphite and 5 to 10 parts by weight of conductive carbon black, the graphite and the conductive carbon black being subjected to acid oxidation treatment; 1 to 3 parts by weight of an organic antistatic agent; 1 to 3 parts by weight of a novolac epoxy resin; 0 to 5 parts by weight of an auxiliary. The composite material and the pipe have good flame retardant, wear resistant and antistatic properties, and are suitable for coal mine pipelines.
Description
Technical Field
The invention relates to the technical field of materials for pipes, in particular to a flame-retardant wear-resistant antistatic polyethylene composite material, a preparation method and a pipe.
Background
China is a big coal producing country, various conveying pipelines are required for coal mine production, and the coal mine production is divided into four categories of gas drainage, water supply and drainage, air supply, slurry spraying and the like according to the application. Steel and wood used in mines are being gradually replaced by plastics. Compared with steel, the plastic pipe has the advantages of acid resistance, alkali resistance, oil resistance, corrosion resistance, light weight, low cost, long service life and the like, but the plastic pipe is very easy to generate static electricity, when the plastic pipe is used under a coal mine, suspended coal powder or other dust and the plastic pipe are mutually rubbed and collided to generate static electricity, and when the static electricity is accumulated to a certain degree, the static electricity can be discharged to generate sparks, so that fire or gas explosion can be possibly caused. Besides poor antistatic properties, plastic pipes also have the disadvantages of flammability, pressure resistance, impact resistance and low wear resistance. In order to improve the mechanical property of the plastic pipe, several steel skeleton plastic composite pipes are developed in sequence: the steel plate reinforced plastic composite pipe, the punched steel belt skeleton composite pipe, the steel wire mesh node wound skeleton composite pipe and the steel wire wound reinforced polyethylene composite pipe are sequentially arranged in the steel plate reinforced plastic composite pipe, the punched steel belt skeleton composite pipe, the steel wire mesh node wound skeleton composite pipe and the steel wire wound reinforced polyethylene composite pipe, wherein the steel wire wound reinforced polyethylene composite pipe is high in tensile strength and excellent in toughness and crack resistance. For example, chinese utility model patent CN204387508U discloses a compound pipe of winding steel wire mesh skeleton plastics of multilayer steel wire winding is provided with the crisscross winding of 2 layers of winding steel wire latticed reinforcing structure layer that forms including the centre of outer tube, bonds through hot melt adhesive layer between winding steel wire latticed reinforcing structure layer and inner tube, the outer tube for fuse together between high strength steel wire and the interior outer layer plastics, thereby obtain the compound tubular product of high strength.
At present, polyethylene is commonly used as a base material for plastic layers in plastic pipes and steel skeleton composite pipes, and has the advantages of light weight, low price, no toxicity, low water absorption rate and the like. In order to improve the safety and reliability of the pipe for the underground coal mine, the polyethylene base material needs to be modified in the aspects of flame retardance, static resistance and mechanical property. However, the polyethylene composite material for the existing pipe generally has the problems of poor compatibility of the modified additive and the polyethylene base material, so that the polyethylene composite material causes blooming or exudation, has large addition amount of the modified additive and poor dispersibility in the polyethylene base material, and can affect the mechanical property of the pipe. Furthermore, some flame retardants are resistant to some antistatic agents and improper selection of components can result in poor modification. In addition, the commonly used halogen flame retardants such as decabromodiphenyl ether generate corrosive and toxic gases when polyethylene pipes are burned, causing secondary hazards.
Disclosure of Invention
In view of the defects of the prior art, the first object of the present invention is to provide a polyethylene composite material with good flame retardant, wear resistant and antistatic properties.
The second purpose of the invention is to provide a preparation method of the polyethylene composite material with good flame retardant, wear resistance and antistatic performance.
The third purpose of the invention is to provide a pipe with good flame retardant, wear resistant and antistatic properties.
In order to realize the first purpose of the invention, the invention provides a flame-retardant wear-resistant antistatic polyethylene composite material, which comprises the following components in parts by weight: 100 parts by weight of high-density polyethylene, wherein the high-density polyethylene is subjected to ultraviolet irradiation treatment; 15 to 20 parts by weight of melamine pyrophosphate; 10 to 15 parts by weight of graphite and 5 to 10 parts by weight of conductive carbon black, the graphite and the conductive carbon black being subjected to acid oxidation treatment; 1 to 3 parts by weight of an organic antistatic agent; 1 to 3 parts by weight of a novolac epoxy resin; 0 to 5 parts by weight of an auxiliary.
Therefore, the invention provides the polyethylene composite material with good flame retardant, wear resistance and antistatic performance. The high-density polyethylene has higher tensile strength and creep resistance compared with low-density polyethylene, and can introduce a certain amount of polar or active groups, such as ether bonds, ester groups, carbonyl groups, carboxyl groups, hydroxyl groups and the like into a plastic matrix after being irradiated by ultraviolet light. The melamine pyrophosphate has a melamine structure, is rich in flame retardant elements such as phosphorus, nitrogen and the like in molecules, and contains active groups such as amino groups and the like. Graphite and conductive carbon black belong to conductive fillers, and a conductive channel formed in a plastic system can play a role in antistatic. Meanwhile, the graphite is used as the wear-resistant filler, so that the wear resistance of the material can be improved. After the graphite and the conductive carbon black are subjected to acid oxidation treatment, active groups such as carboxyl, hydroxyl and the like can be introduced into the graphite and the conductive carbon black, and the graphite is subjected to acid oxidation intercalation treatment to form expandable graphite, so that the graphite has a certain flame retardant effect. Because the polyethylene matrix, the melamine pyrophosphate, the graphite, the conductive carbon black and the like have polar groups, the dispersibility of the melamine pyrophosphate, the graphite and the conductive carbon black in the polyethylene matrix is improved, and the composite material also contains the novolac epoxy resin, wherein the novolac epoxy resin can react with active groups in the polyethylene matrix, the melamine pyrophosphate, the graphite and the conductive carbon black, so that the dispersibility of the melamine pyrophosphate, the graphite and the conductive carbon black in the polyethylene matrix is greatly improved, and the mechanical property of the material is improved. The melamine pyrophosphate, the graphite subjected to acid oxidation treatment and the novolac epoxy resin are compounded to play a synergistic flame retardant role, in the combustion process, the melamine pyrophosphate can release nitrogen-containing gas capable of blocking or diluting oxygen and generate phosphoric acid, the graphite can expand and cover the surface layer of the material, and meanwhile, the phosphoric acid promotes carbonization crosslinking of the novolac epoxy resin and the like, so that the oxygen-insulating and heat-insulating protective roles are played, and the combustion is prevented. When the components are adopted in parts by weight, the material can be endowed with good flame retardant, wear resistant and antistatic properties, and the adverse effect of the modified additive on the mechanical properties of the material is avoided.
The further technical scheme is that the ultraviolet irradiation treatment comprises the following steps: at room temperature at an intensity of 78W/m2Is irradiated for 20 to 25 hours.
Therefore, the invention further defines the specific process conditions of the ultraviolet irradiation treatment, and can introduce a proper amount of polar or active groups into the polyethylene matrix within the range of the conditions, and simultaneously avoid excessive degradation or crosslinking of the polyethylene matrix. The polyethylene matrix can be irradiated at room temperature without heating, and the operation is convenient.
The further technical scheme is that the acid oxidation treatment comprises the following steps: soaking in mixed acid with oxidant at 50-100 deg.c for 30-90 min, washing and drying. The further technical proposal is that the oxidant is at least one of potassium permanganate, hydrogen peroxide and potassium dichromate; the mixed acid is prepared by mixing concentrated nitric acid and concentrated sulfuric acid according to the mass ratio of 1: (2 to 3) the concentrated nitric acid is 60 to 68 wt% and the concentrated sulfuric acid is 70 to 98 wt%.
From the above, the present invention further defines the specific operation and process conditions of the acid oxidation treatment, and by adopting the above operation and process, sufficient polar or active groups can be introduced into the graphite and the conductive carbon black, and the graphite is intercalated to form expandable graphite. The soaking can be carried out under the conditions of stirring or ultrasound and the like.
The further technical proposal is that the organic antistatic agent is at least one of sulfonate, carboxylate, phosphoric acid derivative, quaternary ammonium salt, alkyl amino acid salt, polyethylene glycol derivative, fatty acid derivative and organosilicon.
Therefore, the organic antistatic agent can be selected from the existing organic antistatic agents according to actual needs, and the organic antistatic agent is matched with graphite and conductive carbon black, so that the antistatic property of the material can be improved.
The further technical scheme is that the auxiliary agent is at least one of a dispersant, a lubricant, an antioxidant and an ultraviolet absorbent.
Therefore, the composite material can select proper additives according to the requirements of the processing performance, the aging resistance and the like of the material.
The further technical proposal is that the melamine pyrophosphate accounts for 20 weight portions; 15 parts of graphite; 8 parts of conductive carbon black; 3 parts of organic antistatic agent; the novolac epoxy resin is 3 parts by weight.
Therefore, the invention provides a preferable formula, and when the components are used in the above dosage, the composite material with good flame retardance, wear resistance, antistatic property and mechanical property can be obtained.
In order to achieve the second object of the invention, the invention provides a preparation method of a flame-retardant, wear-resistant and antistatic polyethylene composite material, which comprises the following steps: the method comprises the following steps: weighing the following components in parts by weight: 100 parts by weight of high-density polyethylene, wherein the high-density polyethylene is subjected to ultraviolet irradiation treatment; 15 to 20 parts by weight of melamine pyrophosphate; 10 to 15 parts by weight of graphite and 5 to 10 parts by weight of conductive carbon black, the graphite and the conductive carbon black being subjected to acid oxidation treatment; 1 to 3 parts by weight of an organic antistatic agent; 1 to 3 parts by weight of a novolac epoxy resin; 0 to 5 parts by weight of an auxiliary agent; step two: mixing 5-15 parts by weight of high-density polyethylene with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, and extruding and granulating to obtain a master batch; step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, and extruding and granulating to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
The preparation method comprises the steps of taking a small part of polyethylene as a carrier, uniformly mixing the small part of polyethylene with melamine pyrophosphate, conductive carbon black, graphite and the like to prepare a master batch with flame retardant, wear resistance and antistatic effects, mixing the rest of polyethylene, the master batch and novolac epoxy resin, extruding and granulating to prepare the composite material. Compared with the one-step extrusion granulation after the raw materials are mixed, the two-step method is favorable for improving the dispersion uniformity of the melamine pyrophosphate, the conductive carbon black, the graphite, the organic antistatic agent and the auxiliary agent in the polyethylene matrix, and the novolac epoxy resin is added during the second-step extrusion granulation, so that the melamine pyrophosphate, the conductive carbon black and the graphite are favorably dispersed uniformly in the whole polyethylene matrix.
The further technical scheme is that the method also comprises the following steps before the step two: ultraviolet irradiation treatment step: the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Is irradiated for 20h to 25h under the ultraviolet light.
The further technical scheme is that the method also comprises the following steps before the step two: acid oxidation treatment: soaking graphite and conductive carbon black in mixed acid added with oxidant at 50-100 deg.c for 30-90 min, washing and drying. The further technical proposal is that the oxidant is at least one of potassium permanganate, hydrogen peroxide and potassium dichromate; the mixed acid is prepared by mixing concentrated nitric acid and concentrated sulfuric acid according to the mass ratio of 1: (2 to 3) the concentrated nitric acid is 60 to 68 wt% and the concentrated sulfuric acid is 70 to 98 wt%.
The further technical proposal is that in the second step or the third step, the mixture is extruded by a double-screw extruder or a three-screw extruder.
The further technical proposal is that the organic antistatic agent is at least one of sulfonate, carboxylate, phosphoric acid derivative, quaternary ammonium salt, alkyl amino acid salt, polyethylene glycol derivative, fatty acid derivative and organosilicon antistatic agent.
The further technical scheme is that the auxiliary agent is at least one of a dispersant, a lubricant, an antioxidant and an ultraviolet absorbent.
In order to achieve the third object of the invention, the invention provides a pipe which is made of the flame-retardant, wear-resistant and antistatic polyethylene composite material in any one of the schemes; or the flame-retardant wear-resistant antistatic polyethylene composite material is prepared by the preparation method in any scheme.
In order to realize the third purpose of the invention, the invention provides a pipe which comprises an inner layer pipe and an outer layer pipe, wherein a wound steel wire mesh framework is arranged between the inner layer pipe and the outer layer pipe, and the inner layer pipe and the outer layer pipe are respectively bonded with the wound steel wire mesh framework through hot melt adhesives; the wound steel wire mesh framework comprises one or more layers of wound steel wire meshes, and when the wound steel wire mesh framework comprises a plurality of layers of wound steel wire meshes, adjacent wound steel wire meshes are bonded through hot melt adhesive; at least one of the inner layer pipe and the outer layer pipe is made of the flame-retardant, wear-resistant and antistatic polyethylene composite material in any scheme; or the flame-retardant wear-resistant antistatic polyethylene composite material is prepared by the preparation method in any scheme.
Therefore, the invention provides the pipe made of the polyethylene composite material, and the pipe is selected to be a plastic pipe or a plastic composite pipe wound with a steel wire mesh framework according to requirements. The plastic composite pipe with the wound steel wire mesh framework, which is prepared by the invention, has good flame retardant, wear resistant and antistatic properties, and is suitable for being used as a pipe for underground coal mines.
Drawings
FIG. 1 is a schematic structural view of example 1 of a pipe of the present invention.
Figure 2 is a schematic structural view of a pipe embodiment 2 of the invention.
Figure 3 is a schematic structural view of pipe example 3 of the present invention.
Detailed Description
Composite material example 1
The flame-retardant wear-resistant antistatic polyethylene composite material comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 20 parts by weight of melamine pyrophosphate; 15 parts by weight of graphite, 8 parts by weight of conductive carbon black and 3 parts by weight of an organic antistatic agent; 3 parts by weight of novolac epoxy resin; 0.2 parts of lubricant, 0.2 parts of antioxidant and 0.1 part of ultraviolet absorbent.
The flame-retardant, wear-resistant and antistatic polyethylene composite material of the embodiment is prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 20 hours under the ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 90 wt% concentrated sulfuric acid according to the mass ratio of 1: 3 at 50 deg.C for 90min, cleaning, and drying.
Step two: mixing 5 parts by weight of high-density polyethylene with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding and granulating in a double-screw extruder to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
Composite material example 2
The flame-retardant wear-resistant antistatic polyethylene composite material comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 15 parts by weight of melamine pyrophosphate; 13 parts by weight of graphite, 10 parts by weight of conductive carbon black and 3 parts by weight of an organic antistatic agent; 3 parts by weight of novolac epoxy resin; 0.2 parts by weight of lubricant and 0.2 parts by weight of antioxidant.
The flame-retardant, wear-resistant and antistatic polyethylene composite material of the embodiment is prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 20 hours under the ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium dichromate and 98 wt% concentrated sulfuric acid according to the mass ratio of 1: 2, soaking in mixed acid at 100 deg.C for 30min, cleaning, and drying.
Step two: taking 10 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a three-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding and granulating in a three-screw extruder to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
Composite material example 3
The flame-retardant wear-resistant antistatic polyethylene composite material comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 15 parts by weight of melamine pyrophosphate; 10 parts by weight of graphite, 5 parts by weight of conductive carbon black and 1 part by weight of an organic antistatic agent; 1 part by weight of novolac epoxy resin; 0.2 weight portions of lubricant and 0.1 weight portions of antioxidant.
The flame-retardant, wear-resistant and antistatic polyethylene composite material of the embodiment is prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 25 hours under ultraviolet light; adding graphite and carbon black into 60 wt% concentrated nitric acid added with hydrogen peroxide and 90 wt% concentrated sulfuric acid according to the mass ratio of 1: 3 at 80 deg.C for 60min, cleaning, and drying.
Step two: taking 15 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding and granulating in a double-screw extruder to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
Composite example 4
The flame-retardant wear-resistant antistatic polyethylene composite material comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 18 parts by weight of melamine pyrophosphate; 15 parts by weight of graphite and 10 parts by weight of conductive carbon black, 3 parts by weight of an organic antistatic agent; 2 parts by weight of novolac epoxy resin; and the auxiliary agent consists of 0.2 part by weight of dispersant, 0.2 part by weight of lubricant and 0.2 part by weight of ultraviolet absorbent.
The flame-retardant, wear-resistant and antistatic polyethylene composite material of the embodiment is prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 20 hours under the ultraviolet light; adding graphite and carbon black into a mixture of 68 wt% concentrated nitric acid added with hydrogen peroxide and 90 wt% concentrated sulfuric acid according to a mass ratio of 1: 2 at 90 deg.C for 50min, cleaning, and drying.
Step two: taking 10 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding and granulating in a double-screw extruder to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
Composite material example 5
The flame-retardant wear-resistant antistatic polyethylene composite material comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 15 parts by weight of melamine pyrophosphate; 10 parts by weight of graphite, 5 parts by weight of conductive carbon black and 1 part by weight of an organic antistatic agent; 1 part by weight of novolac epoxy resin; 0.1 part of lubricant, 0.2 part of antioxidant and 0.2 part of ultraviolet absorbent.
The flame-retardant, wear-resistant and antistatic polyethylene composite material of the embodiment is prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 25 hours under ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 90 wt% concentrated sulfuric acid according to the mass ratio of 1: 3 at 80 deg.C for 60min, cleaning, and drying.
Step two: and mixing the high-density polyethylene with the master batch and the novolac epoxy resin, extruding and granulating in a double-screw extruder to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
Comparative composite Material example 1
The composite material of the comparative example comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 15 parts by weight of melamine pyrophosphate; 10 parts by weight of graphite, 5 parts by weight of conductive carbon black and 1 part by weight of an organic antistatic agent; 0.5 parts by weight of novolac epoxy resin; 0.2 parts of lubricant, 0.1 part of antioxidant and 0.2 part of ultraviolet absorbent.
The polyethylene composite of this comparative example was prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 25 hours under ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 90 wt% concentrated sulfuric acid according to the mass ratio of 1: 3 at 80 deg.C for 60min, cleaning, and drying.
Step two: taking 15 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding in a double-screw extruder, and granulating to obtain the polyethylene composite material.
Comparative composite Material example 2
The composite material of the comparative example comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 20 parts by weight of melamine pyrophosphate; 15 parts by weight of graphite, 8 parts by weight of conductive carbon black and 1 part by weight of an organic antistatic agent; 3.5 parts by weight of novolac epoxy resin; 0.2 parts of lubricant, 0.2 parts of antioxidant and 0.1 part of ultraviolet absorbent.
The polyethylene composite of this comparative example was prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 25 hours under ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 90 wt% concentrated sulfuric acid according to the mass ratio of 1: 3 at 80 deg.C for 60min, cleaning, and drying.
Step two: taking 15 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding in a double-screw extruder, and granulating to obtain the polyethylene composite material.
Comparative composite Material example 3
The composite material of the comparative example comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 13 parts by weight of melamine pyrophosphate; 20 parts by weight of graphite and 13 parts by weight of conductive carbon black, 3 parts by weight of an organic antistatic agent; 3 parts by weight of novolac epoxy resin; and (3) an auxiliary agent consisting of 0.2 part by weight of an ultraviolet absorbent.
The polyethylene composite of this comparative example was prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Ultraviolet light irradiation ofShooting for 20 h; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 98 wt% concentrated sulfuric acid according to the mass ratio of 1: 2 at 70 deg.C for 80min, cleaning, and drying.
Step two: taking 10 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding in a double-screw extruder, and granulating to obtain the polyethylene composite material.
Comparative composite Material example 4
The composite material of the comparative example comprises the following components in parts by weight: 100 parts by weight of high density polyethylene; 25 parts by weight of melamine pyrophosphate; 8 parts by weight of graphite, 10 parts by weight of conductive carbon black and 3 parts by weight of an organic antistatic agent; 3 parts by weight of novolac epoxy resin; an auxiliary agent consisting of 0.2 parts by weight of a lubricant.
The polyethylene composite of this comparative example was prepared by the following steps:
the method comprises the following steps: weighing the raw materials in parts by weight; the high-density polyethylene is mixed at room temperature and has the strength of 78W/m2Irradiating for 20 hours under the ultraviolet light; adding graphite and carbon black into 68 wt% concentrated nitric acid added with potassium permanganate and 98 wt% concentrated sulfuric acid according to the mass ratio of 1: 2 at 70 deg.C for 80min, cleaning, and drying.
Step two: taking 10 parts by weight of high-density polyethylene, mixing with melamine pyrophosphate, graphite, conductive carbon black, an organic antistatic agent and an auxiliary agent, extruding in a double-screw extruder, and granulating to obtain the master batch.
Step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, extruding in a double-screw extruder, and granulating to obtain the polyethylene composite material.
The above examples and comparative examples the properties of the components for preparing the composite material are shown in the following tables 1 to. Wherein the melt flow rate is measured according to ASTM D1238 Standard test method for determining melt flow rate of thermoplastics with an extrusion plastometer (5kg, 190 ℃), the tensile strength and elongation at break are measured according to ASTM D638 Standard test method for tensile Properties of plastics, and the limiting oxygen index is measured according to ASTM D2863 Standard.
TABLE 1 Components, preparation methods and Properties of composite examples and comparative examples
Therefore, the composite material disclosed by the invention has good processability, mechanical property and flame retardant property, and the comprehensive performance of the embodiment 1 is better. Comparing examples 1 to 5 with comparative examples 1 to 2, it can be seen that when the amount of novolac epoxy resin is too small, the connection between polyethylene matrix resin and melamine pyrophosphate, graphite, conductive carbon black, etc. is reduced, the melt flow rate is too high, and the mechanical properties and flame retardant properties are reduced; when the dosage of the novolac epoxy resin is too much, the connection between the polyethylene matrix resin and melamine pyrophosphate, graphite, conductive carbon black and the like is increased, so that plastic crosslinking is easily caused, and the melt flow rate is too low, so that the processing is not facilitated. As can be seen by comparing examples 1 to 5 with comparative examples 3 to 4, when the amount of melamine pyrophosphate used was too small, the flame retardant properties of the material were poor; when the consumption of melamine pyrophosphate is too much, the mechanical property of the material is reduced; too much graphite and conductive carbon black also leads to a decrease in mechanical properties.
The composite material of the present invention can be used to prepare different pipes as desired, for example the pipes described in examples 1 to 3 below.
Pipe material example 1
As shown in fig. 1, the pipe of the present embodiment includes a pipe body 10 made of the composite material of the present invention, and is suitable for flame retardant, wear resistant and antistatic applications.
Pipe material example 2
As shown in fig. 2, the pipe material of the present embodiment includes an inner layer pipe 21 and an outer layer pipe 22, a steel wire mesh winding framework 23 is disposed between the inner layer pipe 21 and the outer layer pipe 22, and the inner layer pipe 21 and the outer layer pipe 22 are respectively bonded to the steel wire mesh winding framework 23 through a hot melt adhesive 24. The wound wire mesh skeleton 23 includes a layer of wound wire mesh. At least one of the inner tube 21 and the outer tube 22 is made of the composite material of the present invention.
Pipe material example 3
As shown in fig. 2, the pipe material of the present embodiment includes an inner layer pipe 31 and an outer layer pipe 32, a steel wire mesh winding frame 33 is disposed between the inner layer pipe 31 and the outer layer pipe 32, and the inner layer pipe 31 and the outer layer pipe 32 are respectively bonded to the steel wire mesh winding frame 33 through a hot melt adhesive 34. The wound wire mesh framework 33 comprises two layers of wound wire meshes, and adjacent wound wire meshes are bonded through hot melt adhesives 34. At least one of the inner tube 31 and the outer tube 32 is made of the composite material of the present invention.
The composite materials of the composite material examples and comparative examples were used to prepare the pipe of pipe example 3, with the pipe performance parameters shown in table 2 below. The mortar abrasion rate is tested according to a test method in the appendix of CJ/T537-2019, and the surface resistance, the flame combustion time and the flameless combustion time are tested according to AQ 1071-2009.
TABLE 2 pipe Properties
From the above, the pipes prepared from the composite materials of examples 1 to 5 of the present invention have good wear resistance, antistatic property and flame retardant property. It is understood from the comparison of examples with comparative examples that the addition of graphite in an excessively low amount results in a decrease in abrasion resistance and antistatic property, and a decrease in flame retardancy.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the invention, which is not intended to limit the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The flame-retardant wear-resistant antistatic polyethylene composite material is characterized by comprising the following components in parts by weight:
100 parts by weight of high-density polyethylene, wherein the high-density polyethylene is subjected to ultraviolet irradiation treatment;
15 to 20 parts by weight of melamine pyrophosphate;
10 to 15 parts by weight of graphite and 5 to 10 parts by weight of conductive carbon black, the graphite and the conductive carbon black being subjected to acid oxidation treatment;
1 to 3 parts by weight of an organic antistatic agent;
1 to 3 parts by weight of a novolac epoxy resin;
0 to 5 parts by weight of an auxiliary.
2. The flame-retardant, wear-resistant and antistatic polyethylene composite material as claimed in claim 1, characterized in that:
the ultraviolet light irradiation treatment includes: at room temperature at an intensity of 78W/m2Is irradiated for 20 to 25 hours under the ultraviolet light;
the acid oxidation treatment comprises: soaking in mixed acid added with oxidant at 50-100 deg.C for 30-90 min, cleaning, and drying; the oxidant is at least one of potassium permanganate, hydrogen peroxide and potassium dichromate; the mixed acid is prepared by mixing concentrated nitric acid and concentrated sulfuric acid according to the mass ratio of 1: (2-3), wherein the concentration of the concentrated nitric acid is 60-68 wt%, and the concentration of the concentrated sulfuric acid is 70-98 wt%.
3. The flame-retardant, wear-resistant and antistatic polyethylene composite material as claimed in claim 1, characterized in that:
the organic antistatic agent is at least one of sulfonate, carboxylate, phosphoric acid derivative, quaternary ammonium salt, alkyl amino acid salt, polyethylene glycol derivative, fatty acid derivative and organic silicon;
the auxiliary agent is at least one of a dispersant, a lubricant, an antioxidant and an ultraviolet absorbent.
4. The flame retardant, abrasion resistant and antistatic polyethylene composite material according to any one of claims 1 to 3, characterized in that:
the melamine pyrophosphate accounts for 20 parts by weight;
15 parts of graphite;
8 parts by weight of conductive carbon black;
the organic antistatic agent is 3 parts by weight;
the phenolic epoxy resin is 3 parts by weight.
5. The preparation method of the flame-retardant wear-resistant antistatic polyethylene composite material is characterized by comprising the following steps of:
the method comprises the following steps: weighing the following components in parts by weight:
100 parts by weight of high-density polyethylene, wherein the high-density polyethylene is subjected to ultraviolet irradiation treatment;
15 to 20 parts by weight of melamine pyrophosphate;
10 to 15 parts by weight of graphite and 5 to 10 parts by weight of conductive carbon black, the graphite and the conductive carbon black being subjected to acid oxidation treatment;
1 to 3 parts by weight of an organic antistatic agent;
1 to 3 parts by weight of a novolac epoxy resin;
0 to 5 parts by weight of an auxiliary agent;
step two: mixing 5-15 parts by weight of the high-density polyethylene with the melamine pyrophosphate, the graphite, the conductive carbon black, the organic antistatic agent and the auxiliary agent, and extruding and granulating to obtain a master batch;
step three: and mixing the rest high-density polyethylene with the master batch and the novolac epoxy resin, and extruding and granulating to obtain the flame-retardant wear-resistant antistatic polyethylene composite material.
6. The method of claim 5, wherein:
before the second step, the following steps are also included:
ultraviolet irradiation treatment step: subjecting the high density polyethylene to a temperature of 78W/m2Ultraviolet light irradiation of20 to 25 hours;
acid oxidation treatment: soaking the graphite and the conductive carbon black in mixed acid added with an oxidant at the temperature of 50-100 ℃ for 30-90 min, and cleaning and drying after soaking; the oxidant is at least one of potassium permanganate, hydrogen peroxide and potassium dichromate; the mixed acid is prepared by mixing concentrated nitric acid and concentrated sulfuric acid according to the mass ratio of 1: (2-3), wherein the concentration of the concentrated nitric acid is 60-68 wt%, and the concentration of the concentrated sulfuric acid is 70-98 wt%.
7. The method of claim 5, wherein:
in step two or step three, extruding by a twin screw extruder or a three screw extruder.
8. The method of claim 5, wherein:
the organic antistatic agent is at least one of sulfonate, carboxylate, phosphoric acid derivative, quaternary ammonium salt, alkyl amino acid salt, polyethylene glycol derivative, fatty acid derivative and organic silicon;
the auxiliary agent is at least one of a dispersant, a lubricant, an antioxidant and an ultraviolet absorbent.
9. The tubular product, its characterized in that:
made of the flame-retardant, wear-resistant and antistatic polyethylene composite material as claimed in any one of claims 1 to 4; or, the flame-retardant, wear-resistant and antistatic polyethylene composite material prepared by the preparation method of any one of claims 5 to 8.
10. The pipe comprises an inner layer pipe and an outer layer pipe, wherein a wound steel wire mesh framework is arranged between the inner layer pipe and the outer layer pipe, and the inner layer pipe and the outer layer pipe are respectively bonded with the wound steel wire mesh framework through hot melt adhesives; the winding steel wire mesh framework comprises one or more layers of winding steel wire meshes; when the wound steel wire mesh framework comprises a plurality of layers of wound steel wire meshes, adjacent wound steel wire meshes are bonded through the hot melt adhesive; the method is characterized in that:
at least one of the inner layer pipe and the outer layer pipe is made of the flame-retardant, wear-resistant and antistatic polyethylene composite material as claimed in any one of claims 1 to 4; or, the flame-retardant, wear-resistant and antistatic polyethylene composite material prepared by the preparation method of any one of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994369.1A CN110628116B (en) | 2019-10-18 | 2019-10-18 | Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994369.1A CN110628116B (en) | 2019-10-18 | 2019-10-18 | Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110628116A true CN110628116A (en) | 2019-12-31 |
| CN110628116B CN110628116B (en) | 2021-11-26 |
Family
ID=68976718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910994369.1A Active CN110628116B (en) | 2019-10-18 | 2019-10-18 | Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110628116B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231385A (en) * | 2020-02-18 | 2020-06-05 | 广东东方管业有限公司 | Preparation process of multilayer steel wire winding modified polyethylene composite pipe |
| CN114456469A (en) * | 2022-02-21 | 2022-05-10 | 杭州毅而玛管业有限公司 | Double-anti-winding reinforced pipe and manufacturing method thereof |
| CN114685881A (en) * | 2022-03-25 | 2022-07-01 | 武汉金发科技有限公司 | Flame-retardant LLDPE/EVA composite material and preparation method and application thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030125439A1 (en) * | 1999-09-24 | 2003-07-03 | Shahzad Ebrahimian | Low smoke emission, low corrosivity, low toxicity, low heat release, flame retardant, zero halogen polymeric compositions |
| WO2004104087A2 (en) * | 2003-05-23 | 2004-12-02 | Du Pont-Mitsui Polychemicals Co., Ltd. | Polymer composition, process for producing the polymer composition, and molded articles for automobile exterior trim |
| CN102359668A (en) * | 2011-09-29 | 2012-02-22 | 广东东方管业有限公司 | Flame retardant and antistatic steel mesh skeleton polyethylene composite pipe for mining and manufacturing method thereof |
| CN102407601A (en) * | 2011-09-29 | 2012-04-11 | 广东东方管业有限公司 | Method and device for sealing steel wire framework plastic composite pipe |
| CN202302350U (en) * | 2011-09-29 | 2012-07-04 | 广东东方管业有限公司 | Flame-retardant antistatic steel mesh frame polyethylene composite pipe for mining |
| CN102993537A (en) * | 2011-09-09 | 2013-03-27 | 滁州格美特科技有限公司 | Weather-proof flame retardation antistatic crosslinking polyethylene tubing, preparation method and application |
| WO2013085788A1 (en) * | 2011-12-09 | 2013-06-13 | Icl-Ip America Inc. | Synergized flame retarded polyolefin polymer composition, article thereof, and method of making the same |
| CN104610636A (en) * | 2015-01-15 | 2015-05-13 | 安徽科正新材料有限公司 | Fast two-step crosslinked polyethylene insulation material and preparation technology thereof |
| CN105339412A (en) * | 2013-06-28 | 2016-02-17 | 3M创新有限公司 | High modulus epoxy adhesives for shimming applications |
| CN105440406A (en) * | 2015-12-14 | 2016-03-30 | 安徽宁国市高新管业有限公司 | High-fire resistance modified polyethylene tube material |
| CN106046638A (en) * | 2016-07-14 | 2016-10-26 | 东莞市成天泰电线电缆有限公司 | Super-smooth semiconductive shield cable special material and shield cable made of super-smooth semiconductive shield cable special material |
| WO2017220657A1 (en) * | 2016-06-23 | 2017-12-28 | Borealis Ag | Pipe produced from modified polyethylene |
| CN110256815A (en) * | 2019-06-25 | 2019-09-20 | 山东斯恩特纳米材料有限公司 | A kind of novel toughening conductive epoxy resin composite material and preparation method |
-
2019
- 2019-10-18 CN CN201910994369.1A patent/CN110628116B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030125439A1 (en) * | 1999-09-24 | 2003-07-03 | Shahzad Ebrahimian | Low smoke emission, low corrosivity, low toxicity, low heat release, flame retardant, zero halogen polymeric compositions |
| WO2004104087A2 (en) * | 2003-05-23 | 2004-12-02 | Du Pont-Mitsui Polychemicals Co., Ltd. | Polymer composition, process for producing the polymer composition, and molded articles for automobile exterior trim |
| CN102993537A (en) * | 2011-09-09 | 2013-03-27 | 滁州格美特科技有限公司 | Weather-proof flame retardation antistatic crosslinking polyethylene tubing, preparation method and application |
| CN102359668A (en) * | 2011-09-29 | 2012-02-22 | 广东东方管业有限公司 | Flame retardant and antistatic steel mesh skeleton polyethylene composite pipe for mining and manufacturing method thereof |
| CN102407601A (en) * | 2011-09-29 | 2012-04-11 | 广东东方管业有限公司 | Method and device for sealing steel wire framework plastic composite pipe |
| CN202302350U (en) * | 2011-09-29 | 2012-07-04 | 广东东方管业有限公司 | Flame-retardant antistatic steel mesh frame polyethylene composite pipe for mining |
| WO2013085788A1 (en) * | 2011-12-09 | 2013-06-13 | Icl-Ip America Inc. | Synergized flame retarded polyolefin polymer composition, article thereof, and method of making the same |
| CN105339412A (en) * | 2013-06-28 | 2016-02-17 | 3M创新有限公司 | High modulus epoxy adhesives for shimming applications |
| CN104610636A (en) * | 2015-01-15 | 2015-05-13 | 安徽科正新材料有限公司 | Fast two-step crosslinked polyethylene insulation material and preparation technology thereof |
| CN105440406A (en) * | 2015-12-14 | 2016-03-30 | 安徽宁国市高新管业有限公司 | High-fire resistance modified polyethylene tube material |
| WO2017220657A1 (en) * | 2016-06-23 | 2017-12-28 | Borealis Ag | Pipe produced from modified polyethylene |
| CN106046638A (en) * | 2016-07-14 | 2016-10-26 | 东莞市成天泰电线电缆有限公司 | Super-smooth semiconductive shield cable special material and shield cable made of super-smooth semiconductive shield cable special material |
| CN110256815A (en) * | 2019-06-25 | 2019-09-20 | 山东斯恩特纳米材料有限公司 | A kind of novel toughening conductive epoxy resin composite material and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 杨柳涛: "三聚氰胺基阻燃剂在塑料中的应用进展", 《塑料科技》 * |
| 王开琪: "钢丝网骨架聚乙烯复合管的性能特点及工程应用", 《工程塑料应用》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231385A (en) * | 2020-02-18 | 2020-06-05 | 广东东方管业有限公司 | Preparation process of multilayer steel wire winding modified polyethylene composite pipe |
| CN114456469A (en) * | 2022-02-21 | 2022-05-10 | 杭州毅而玛管业有限公司 | Double-anti-winding reinforced pipe and manufacturing method thereof |
| CN114685881A (en) * | 2022-03-25 | 2022-07-01 | 武汉金发科技有限公司 | Flame-retardant LLDPE/EVA composite material and preparation method and application thereof |
| CN114685881B (en) * | 2022-03-25 | 2023-08-29 | 武汉金发科技有限公司 | Flame-retardant LLDPE/EVA composite material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110628116B (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110628116B (en) | Flame-retardant wear-resistant antistatic polyethylene composite material, preparation method and pipe | |
| CN111019269B (en) | PVC cable material and preparation method thereof | |
| CN100412124C (en) | Flame-proof polyethylene material and its preparation method | |
| CN101759900B (en) | Halogen-free flame-retardant and anti-static polyethylene material, pipe and preparing method thereof | |
| CN104592674A (en) | Polyvinyl chloride A-grade fire-retardant interior decoration material | |
| CN105419106A (en) | Halogen-free flame retardant resin and preparation method thereof | |
| CN109735913B (en) | Flame-retardant composition and preparation method thereof, artificial grass filaments, artificial lawn gum and artificial lawn | |
| CN107163554A (en) | A kind of ant proof mouse fire-resistant cable material and preparation method thereof | |
| CN106046681B (en) | A kind of flax fiber element base phosphorus expanding fire retardant and its preparation method and application | |
| CN112679864A (en) | Graphene flame-retardant antistatic composite material for bearing seat and preparation method thereof | |
| CN103554687B (en) | A kind of production method of environmental-protection flame-retardant polyolefine heat-shrink tube | |
| KR101772761B1 (en) | Flame retardant master batch of expanded polystyrene with enhanced cell uniformity and flame-resistance, and a method of the manufacturing | |
| CN109679203B (en) | Halogen-free glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN101619150A (en) | Low-smoke halogen-free flame retardant filler strip | |
| CN111100370A (en) | Flame retardant and preparation method thereof, and polypropylene composite material and preparation method thereof | |
| CN104262875B (en) | Intumescent flame-retardant cable material taking plant-based active carbon as synergist and preparation method thereof | |
| KR101731279B1 (en) | Method of master batch compound manufacturing assigning high flame retardancy and lubricant property to flexible polyolefin conduit and a method of flexible polyolefin conduit manufacturing | |
| CN107868460A (en) | A kind of halogen-free flame-retardant resin and preparation method thereof | |
| CN112341779A (en) | High CTI halogen-free flame-retardant reinforced polycarbonate and preparation method and application thereof | |
| CN111117101A (en) | High-toughness high-flame-retardant PVC (polyvinyl chloride) wood-plastic composite material and preparation method thereof | |
| CN103613913A (en) | Halogen-free flame-retardant thermoplastic polyester elastomer material and preparation method thereof | |
| CN108485056B (en) | Low-emigration halogen-free flame-retardant continuous long glass fiber reinforced polypropylene material and preparation method thereof | |
| CN113788985A (en) | Modified composite antistatic agent, chlorinated polyvinyl chloride pipe and pipe fitting | |
| CN109810408B (en) | Modification method of retired composite insulator silicone rubber and application of retired composite insulator silicone rubber in polypropylene composite | |
| CN111138829A (en) | Polyphenyl ether reclaimed material and preparation process 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Flame retardant, wear-resistant, and anti-static polyethylene composite materials, preparation methods, and pipes Granted publication date: 20211126 Pledgee: Agricultural Bank of China Limited Shunde Xingtan sub branch Pledgor: GUANGDONG EAST PIPES Co.,Ltd. Registration number: Y2024980000153 |