CN111808384A - Modified PVC communication pipe and preparation method thereof - Google Patents
Modified PVC communication pipe and preparation method thereof Download PDFInfo
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- CN111808384A CN111808384A CN202010525368.5A CN202010525368A CN111808384A CN 111808384 A CN111808384 A CN 111808384A CN 202010525368 A CN202010525368 A CN 202010525368A CN 111808384 A CN111808384 A CN 111808384A
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- 238000004891 communication Methods 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 51
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 47
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical class [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 claims description 47
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000006229 carbon black Substances 0.000 claims description 23
- 150000001721 carbon Chemical class 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 21
- -1 polyethylene Polymers 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 19
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 15
- 239000004408 titanium dioxide Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical class [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 8
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical group CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 6
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000001509 sodium citrate Substances 0.000 claims description 6
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- 229960001484 edetic acid Drugs 0.000 claims description 5
- 229930182478 glucoside Natural products 0.000 claims description 5
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 229910000896 Manganin Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000010902 jet-milling Methods 0.000 claims description 3
- BSWXAWQTMPECAK-UHFFFAOYSA-N 6,6-diethyloctyl dihydrogen phosphate Chemical class CCC(CC)(CC)CCCCCOP(O)(O)=O BSWXAWQTMPECAK-UHFFFAOYSA-N 0.000 claims description 2
- 239000001913 cellulose Chemical class 0.000 claims description 2
- 229920002678 cellulose Chemical class 0.000 claims description 2
- QXLPXWSKPNOQLE-UHFFFAOYSA-N methylpentynol Chemical class CCC(C)(O)C#C QXLPXWSKPNOQLE-UHFFFAOYSA-N 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims 1
- 229940083575 sodium dodecyl sulfate Drugs 0.000 claims 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 44
- 229920000915 polyvinyl chloride Polymers 0.000 description 44
- 238000005303 weighing Methods 0.000 description 9
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- FGHOOJSIEHYJFQ-UHFFFAOYSA-N (2,4-ditert-butylphenyl) dihydrogen phosphite Chemical compound CC(C)(C)C1=CC=C(OP(O)O)C(C(C)(C)C)=C1 FGHOOJSIEHYJFQ-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- 239000004609 Impact Modifier Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000006084 composite stabilizer Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003313 weakening effect Effects 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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to the technical field of PVC communication pipes, in particular to a modified PVC communication pipe and a preparation method thereof, wherein the modified PVC communication pipe comprises the following raw materials in parts by weight: 60-80 parts of PVC resin, 10-20 parts of CM powder, 10-30 parts of modified filler, 3-5 parts of heat stabilizer, 4-6 parts of dispersant, 1-3 parts of lubricant, 3.5-5.5 parts of silane coupling agent, 2-4 parts of plasticizer and 1-3 parts of antioxidant, and the prepared PVC communication pipe has high weather resistance, aging resistance, flame retardance, toughness and electromagnetic shielding property.
Description
Technical Field
The invention relates to the technical field of PVC communication pipes, in particular to a modified PVC communication pipe and a preparation method thereof.
Background
With the rapid development of communication industry, the number of communication optical cables and electric cables buried underground is increasing. For a long time, the communication pipe is mainly made of a cement pipe at the earliest, and has the advantages of low manufacturing cost and mature process; the PVC pipe has the defects of long construction period, complex construction process, high maintenance cost, easy settlement and the like, and is gradually replaced by a plastic pipe in recent years, the PVC pipe is one of the most common pipes except PE pipes, and the PVC pipe is applied to a plurality of fields, namely one of communication fields, by virtue of the characteristics of light self weight, corrosion resistance, high compressive strength, safety, convenience, long service life and the like.
The PVC pipe is mainly made of polyvinyl chloride, and is added with other components to enhance the heat resistance, toughness, ductility and the like of the PVC pipe.
The invention discloses a wear-resistant glass fiber communication pipe and a preparation method thereof with a Chinese patent application number of 'CN201610527821.X', wherein the wear-resistant glass fiber communication pipe comprises the following raw materials in parts by weight: PVC60-90 parts, calcium carbonate 6-13.5 parts, glass fiber 3-22.5 parts, impact modifier 1.8-13.5 parts, stearic acid 0.3-0.8 part, calcium zinc composite stabilizer 3.5-6 parts, PE wax 0.4-0.4 part, the invention strictly improves the conditions of temperature, feeding speed, host rotating speed, traction speed and the like in the preparation process, solves the problems of poor plasticization of glass fiber rigid communication tube sample bars, insufficient sample bar forming and the like in the production process, obtains the wear-resistant glass fiber communication tube with proper rigidity strength and toughness strength, but when the communication tube is used in a place where communication cables are concentrated, the communication cable has large information amount processed, the emitted electromagnetic radiation is strong, the electromagnetic interference is easy to cause, the information interference and delay are easy to cause, and certain trouble is brought to workers.
Disclosure of Invention
In view of the above, the present invention aims to provide a modified PVC communication pipe and a preparation method thereof, and the prepared PVC communication pipe has high weather resistance, aging resistance, flame retardancy, toughness and electromagnetic shielding property.
The invention solves the technical problems by the following technical means:
the modified PVC communication pipe is characterized by comprising the following raw materials in parts by weight: 60-80 parts of PVC resin, 10-20 parts of CM powder, 10-30 parts of modified filler, 3-5 parts of heat stabilizer, 4-6 parts of dispersant, 1-3 parts of lubricant, 3.5-5.5 parts of silane coupling agent, 2-4 parts of plasticizer and 1-3 parts of antioxidant.
Further, the modified PVC communication pipe comprises the following raw materials in parts by weight: 70 parts of PVC resin, 15 parts of CM powder, 20 parts of modified filler, 4 parts of heat stabilizer, 5 parts of dispersant, 2 parts of lubricant, 4.5 parts of silane coupling agent, 3 parts of plasticizer and 2 parts of antioxidant.
Further, the heat stabilizer is a lead salt stabilizer, the lubricant is polyethylene wax, the plasticizer is dioctyl phthalate, and the antioxidant is a mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tris [2, 4-di-tert-butylphenyl ] phosphite.
Further, the dispersant is at least one of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methylpentanol, cellulose derivative and polyacrylamide.
Further, the preparation method of the modified PVC communication pipe comprises the following steps:
putting PVC resin and CM powder into a high-speed mixer, stirring for 10-20min at 80-90 ℃, adding a heat stabilizer, a dispersing agent, a lubricating agent, a silane coupling agent, a modified filler and an antioxidant, stirring for 10-3min at 160 ℃ of 140-.
Further, the preparation of the modified filler comprises the following steps:
modified manganese-copper alloy: grinding the manganese-copper alloy into powder, adding deionized water, stirring to form a suspension, adding ethylene diamine tetraacetic acid, adding alkyl glucoside, continuously stirring for 5-8H at 80-100 ℃, keeping the temperature for 8-12H, cooling, filtering and drying to obtain the modified manganese-copper alloy;
modified carbon black: adding conductive carbon black into deionized water, stirring to obtain a suspension, adding sodium stearate, adding sodium sulfate, continuously stirring for 1-3H at the temperature of 30-45 ℃, filtering after the reaction is finished, and drying to obtain modified carbon black;
modified filler: adding the modified manganese-copper alloy into deionized water, stirring to obtain a suspension, adding modified carbon black, adding tetra-n-propyl zirconate, adding sodium carbonate, stirring for 1-2H, carrying out ultrasonic oscillation for 3-5H at 50-60 ℃, carrying out heat preservation for 5-8H at 80-90 ℃, adding titanium dioxide powder, boric acid solution and sodium citrate, stirring uniformly, carrying out water bath heating for 2-3H at 100-120 ℃, cooling, washing, filtering and drying to obtain the modified filler.
Adding tetra-n-propyl zirconate and sodium carbonate into a mixed solution to load modified carbon black on the modified manganese-copper alloy to prepare an intermediate, adding base titanium dioxide into the intermediate solution, and chemically depositing the intermediate on the titanium dioxide by using sodium citrate as a complexing agent in an acidic environment to prepare the modified filler.
The modified filler takes titanium dioxide as a base layer, the compound of the intermediate modified manganese-copper alloy and the modified carbon black is deposited on the surface of the titanium dioxide by a chemical deposition method, the titanium dioxide has large specific surface area and good thermal stability, the surface of the titanium dioxide can be loaded with more compounds of the modified manganese-copper alloy and the modified carbon black, the inner layer of the compound of the modified manganese-copper alloy and the modified carbon black is the manganese-copper alloy, the outer layer is the conductive carbon black, the manganese-copper alloy has lower resistivity and higher magnetic conductivity, the eddy current effect can be increased, the electromagnetic wave emitted in the PVC pipe is intercepted in the pipe, and when the electromagnetic wave migrates on the pipe wall, because of the potential difference between the titanium dioxide and the manganese-copper alloy, the kinetic energy of the electromagnetic wave is reduced, and the specific surface area of the modified filler is increased by the base layer, so that the migration path is lengthened, and the electromagnetic wave reflected back into the tube is weakened; the conductive carbon black has high conductivity and can reflect the electromagnetic wave radiated from the outside, and when the external electromagnetic wave reaches the pipe wall, the reflection of the conductive carbon black, the eddy effect of the manganese-copper alloy and the influence of the base layer on the reflection path of the electromagnetic wave lead to that the energy of the electron is weakened in the reflection process, the energy of the electromagnetic wave reflected back to the outside is weakened, the weakening effect is achieved, and the transmission of the electromagnetic wave in the outside is weakened while the external electromagnetic wave is prevented from interfering the electromagnetic signal in the pipe; through manganese-copper alloy modification and conductive carbon black modification, the modified conductive carbon black is loaded on the modified manganese-copper alloy, a synergistic enhancement effect is achieved, so that the conductive carbon black is gathered on the manganese-copper alloy in a large amount, a conductive path of carbon black particles is enhanced, reflection of external electromagnetic waves of the PVC pipe, reflection and eddy current effects inside the PVC pipe are enhanced, and the electromagnetic shielding performance is enhanced.
Further, the manganese-copper alloy is subjected to jet milling to obtain superfine manganese-copper alloy powder.
The jet milling method is that compressed gas is accelerated into supersonic airflow through specially designed nozzle and jetted to the central grinding area of the grinder to drive the materials in the grinding area to collide with each other to grind fine powder, the airflow is expanded and then raised with the material to enter the grading area, the material reaching the required granularity is separated with the turbine classifier, and the rest coarse powder is returned to the grinding area for further grinding until reaching the required granularity and separated out. The manganese-copper alloy powder with proper size is obtained by a jet mill grinding method, so that the manganese-copper alloy powder is suitable for plastic fillers.
Further, in the preparation step of the modified manganese-copper alloy, drying is carried out for 1-2H under the drying condition of 120 ℃.
Further, in the step of preparing the modified carbon black, the modified carbon black is dried for 3-5H under the condition of 100 ℃.
Further, in the step of preparing the modified filler, the ultrasonic oscillation frequency is 5 to 12 Khz.
Through the oscillation of lower ultrasonic frequency, on one hand, the modified conductive carbon black reacts with the modified manganin alloy as much as possible, and on the other hand, the modified conductive carbon black is convenient to react with the modified manganin alloy, and the C-O bond formed by the combination of the modified conductive carbon black and the modified manganin alloy is prevented from being damaged by higher ultrasonic oscillation frequency. The reaction speed and the reaction combination ratio of the modified conductive carbon black and the modified manganese-copper alloy are increased by heating and heat preservation, and finally, the conductive carbon black which is not completely reacted is washed away by washing to obtain the more stable modified filler.
According to the modified PVC communication pipe and the preparation method thereof, the CM powder and the modified filler are added in the preparation method disclosed by the invention, and the CM powder has excellent weather resistance, ozone resistance, chemical medicine resistance and aging resistance, and has good oil resistance, flame retardance and coloring performance. The toughness is good (the flexibility still exists at minus 30 ℃), and the high-molecular-weight polyurethane has good compatibility with other high-molecular materials; the modified filler is formed by loading a composite of a manganese-copper alloy and conductive carbon black on a titanium dioxide base layer, the titanium dioxide base layer has large specific surface area and good thermal stability, the manganese-copper alloy has lower resistivity and higher magnetic permeability, the conductive carbon black is characterized by small particle size, large and rough specific surface area, high structure, clean surface (few compounds) and high conductivity, the manganese-copper alloy is loaded with the conductive carbon black, the composite of the manganese-copper alloy and the conductive carbon black loaded on the base layer forms multilayer shielding, the conductive carbon black on the outer layer increases the electromagnetic reflection effect, the manganese-copper alloy on the middle layer increases the eddy current effect, the internal base layer increases the migration path of electrons, weakens the energy of the electrons, and accordingly forms a good shielding effect; meanwhile, the modified filler is composed of inorganic particles, so that the wear resistance, aging resistance and weather resistance of the PVC pipe can be improved, and the service life of the pipe is prolonged.
Detailed Description
The present invention will be described in detail with reference to specific examples below:
example 1: preparation of modified Filler 1
Modified manganese-copper alloy: weighing 1200g of manganese-copper alloy, grinding the manganese-copper alloy into powder, adding deionized water, mechanically stirring the powder into suspension, adding ethylenediamine tetraacetic acid into a metering pump, adding alkyl glucoside, continuously stirring the mixture for 5 hours at the temperature of 80 ℃, keeping the temperature for 8 hours, cooling, filtering, and drying the mixture for 1 hour at the temperature of 120 ℃ to obtain the modified manganese-copper alloy;
modified carbon black: weighing 1500g of conductive carbon black, adding deionized water, mechanically stirring to obtain a suspension, adding sodium stearate, adding sodium sulfate, continuously stirring for 1H at 30 ℃, filtering after the reaction is finished, and drying for 3H at 100 ℃ to obtain modified carbon black;
modified filler: adding deionized water into the modified manganese-copper alloy, mechanically stirring to form suspension, adding modified carbon black, adding tetra-n-propyl zirconate, adding sodium carbonate, continuously stirring for 1H, carrying out ultrasonic treatment at 50 ℃ and 5Khz for 3H, then carrying out heat preservation at 80 ℃ for 5H, adding 800g of titanium dioxide powder, adding boric acid solution, adjusting the whole reaction environment to be acidic, adjusting the pH to 4, adding sodium citrate, mechanically stirring uniformly, carrying out water bath heating at 100 ℃ for 2H, cooling, washing, filtering, and drying for 1.5H at 110 ℃ to obtain the modified filler.
Example 2 preparation of modified Filler II
Modified manganese-copper alloy: weighing 1500g of manganese-copper alloy, grinding the manganese-copper alloy into powder, adding deionized water, mechanically stirring the powder into suspension, adding ethylene diamine tetraacetic acid into a metering pump, adding alkyl glucoside, continuously stirring the mixture for 6.5 hours at the temperature of 90 ℃, keeping the temperature for 10 hours, cooling, filtering, and drying the mixture for 2 hours at the temperature of 120 ℃ to obtain the modified manganese-copper alloy;
modified carbon black: weighing 2000g of conductive carbon black, adding deionized water, mechanically stirring to obtain a suspension, adding sodium stearate, adding sodium sulfate, continuously stirring for 1.5H at 40 ℃, filtering after the reaction is finished, and drying for 4H at 100 ℃ to obtain modified carbon black;
modified filler: adding deionized water into the modified manganese-copper alloy, mechanically stirring to form a suspension, adding modified carbon black, adding tetra-n-propyl zirconate, adding sodium carbonate, continuously stirring for 1.5H, heating in a water bath for 6.5H at 85 ℃ after ultrasonic frequency is 8Khz ultrasonic 4H at 55 ℃, adding 1200g of titanium dioxide powder, adding a boric acid solution, adjusting the whole reaction environment to be acidic, adding sodium citrate, mechanically stirring uniformly, heating in a water bath for 2.5H at 110 ℃, cooling, washing, filtering, and drying for 2H at 110 ℃ to obtain the modified filler.
Example 3 preparation of modified Filler III
Modified manganese-copper alloy: weighing 2000g of manganese-copper alloy, grinding the manganese-copper alloy into powder, adding deionized water, mechanically stirring the powder into suspension, adding ethylene diamine tetraacetic acid into a metering pump, adding alkyl glucoside, continuously stirring the mixture for 8 hours at the temperature of 100 ℃, keeping the temperature for 12 hours, cooling, filtering, and drying for 4 hours at the temperature of 120 ℃ to obtain the modified manganese-copper alloy;
modified carbon black: weighing 3000g of conductive carbon black, adding deionized water, mechanically stirring to obtain a suspension, adding sodium stearate, adding sodium sulfate, continuously stirring for 2H at 45 ℃, filtering after the reaction is finished, and drying for 5H at 100 ℃ to obtain modified carbon black;
modified filler: adding deionized water into modified manganese-copper alloy, mechanically stirring to form suspension, adding modified carbon black, adding tetra-n-propyl zirconate, adding sodium carbonate, continuously stirring for 2H, heating in a water bath for 8H at 90 ℃ after ultrasonic treatment with the ultrasonic frequency of 12Khz for 5H at 60 ℃, adding 1500g of titanium dioxide powder, adding boric acid solution, adjusting the whole reaction environment to be acidic, adjusting the pH to 4, adding sodium citrate, mechanically stirring uniformly, heating in a water bath for 3H at 120 ℃, cooling, washing, filtering, and drying for 3H at 110 ℃ to obtain the modified filler.
Example 4 preparation of modified PVC communication tube
Weighing the following raw materials in parts by weight: 60 parts of PVC resin, 10 parts of CM powder, 10 parts of modified filler, 3 parts of lead salt stabilizer, 4 parts of sodium dodecyl sulfate, 1 part of polyethylene wax, 3.5 parts of silane coupling agent, 2 parts of dioctyl phthalate, and 1 part of mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [ 2.4-di-tert-butylphenyl ] phosphite as antioxidant.
Mixing materials: putting PVC resin and CM powder into a high-speed mixer, stirring for 10min at 80 ℃, adding a lead salt stabilizer, sodium dodecyl sulfate, polyethylene wax, a silane coupling agent, a modified filler, a mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tris [2, 4-di-tert-butylphenyl ] phosphite, stirring for 10min at 140 ℃, adding dioctyl phthalate, continuing stirring for 10min, and uniformly stirring to obtain a mixed raw material;
and (3) extrusion molding: and (3) transferring the mixed raw materials into a double-screw extruder, setting the temperature of a main machine to be 160 ℃, the temperature of a die to be 170 ℃ and the temperature of a machine head to be 190 ℃, extruding, molding, shaping and carrying out vacuum cooling to obtain the modified PVC communication pipe.
Example 5 preparation of modified PVC communication pipe
Weighing the following raw materials in parts by weight: 70 parts of PVC resin, 15 parts of CM powder, 20 parts of modified filler, 4 parts of lead salt stabilizer, 5 parts of sodium dodecyl sulfate, 2 parts of polyethylene wax, 4.5 parts of silane coupling agent, 3 parts of dioctyl phthalate, and 2 parts of mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [ 2.4-di-tert-butylphenyl ] phosphite as antioxidant.
Mixing materials: putting PVC resin and CM powder into a high-speed mixer, stirring for 15min at 85 ℃, adding a lead salt stabilizer, sodium dodecyl sulfate, polyethylene wax, a silane coupling agent, a modified filler, a mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tris [2, 4-di-tert-butylphenyl ] phosphite, stirring for 15min at 150 ℃, adding dioctyl phthalate, continuing stirring for 15min, and uniformly stirring to obtain a mixed raw material;
and (3) extrusion molding: and (3) transferring the mixed raw materials into a double-screw extruder, setting the temperature of a main machine to be 165 ℃, the temperature of a die to be 180 ℃, the temperature of a machine head to be 195 ℃, extruding, forming, shaping and carrying out vacuum cooling to obtain the modified PVC communication pipe.
Example 6 preparation of modified PVC communication pipe
Weighing the following raw materials in parts by weight: 80 parts of PVC resin, 20 parts of CM powder, 30 parts of modified filler, 5 parts of lead salt stabilizer, 6 parts of sodium dodecyl sulfate, 3 parts of polyethylene wax, 5.5 parts of silane coupling agent, 4 parts of dioctyl phthalate, and 3 parts of mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tri [2, 4-di-tert-butylphenyl ] phosphite as antioxidant.
Mixing materials: putting PVC resin and CM powder into a high-speed mixer, stirring for 20min at 90 ℃, adding a lead salt stabilizer, sodium dodecyl sulfate, polyethylene wax, a silane coupling agent, a modified filler, a mixture of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester and tris [2, 4-di-tert-butylphenyl ] phosphite, stirring for 20min at 160 ℃, adding dioctyl phthalate, continuing stirring for 20min, and uniformly stirring to obtain a mixed raw material;
and (3) extrusion molding: and (3) transferring the mixed raw materials into a double-screw extruder, setting the temperature of a main machine to be 170 ℃, the temperature of a die to be 190 ℃ and the temperature of a machine head to be 200 ℃, extruding, molding, and carrying out vacuum cooling to obtain the modified PVC communication pipe.
The weather resistance, flame retardancy, flexural modulus and electromagnetic shielding performance of the PVC communication pipes of example four, example five and example six and the commercial PVC communication pipes were tested, respectively, and the following test results were obtained:
| weather resistance of 30 days | Flame retardancy | Flexural modulus | Electromagnetic fieldShielding property | |
| Example four | Without change | V0 | 2910 | 30db |
| EXAMPLE five | Without change | V0 | 2950 | 31db |
| EXAMPLE six | Without change | V0 | 2870 | 28db |
| Existing PVC communication pipe | Slightly whiten | V1 | 1800 | 10db |
As can be seen from the above table, the modified PVC communication tube prepared by the invention has the advantages that as the CM powder is added to modify the PVC raw material, the CM powder has good weather resistance, ozone resistance, flame retardance and toughness (still has flexibility at minus 30 ℃), has good compatibility with other high polymer materials, increases the weather resistance, toughness and flame retardance of the PVC raw material, the modified filler is added to modify the PVC raw material, plays a role in shielding electromagnetic waves, weather resistance and wear resistance in the PVC base body, and increases the electromagnetic shielding property and weather resistance of the PVC raw material, so that the weather resistance, aging resistance, flame retardance, toughness and electromagnetic shielding property are greatly improved compared with the PVC communication tube on the market.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The modified PVC communication pipe is characterized by comprising the following raw materials in parts by weight: 60-80 parts of PVC resin, 10-20 parts of CM powder, 10-30 parts of modified filler, 3-5 parts of heat stabilizer, 4-6 parts of dispersant, 1-3 parts of lubricant, 3.5-5.5 parts of silane coupling agent, 2-4 parts of plasticizer and 1-3 parts of antioxidant.
2. The modified PVC communication pipe of claim 1, which comprises the following raw materials in parts by weight: 70 parts of PVC resin, 15 parts of CM powder, 20 parts of modified filler, 4 parts of heat stabilizer, 5 parts of dispersant, 2 parts of lubricant, 4.5 parts of silane coupling agent, 3 parts of plasticizer and 2 parts of antioxidant.
3. The modified PVC communication tube of claim 2, wherein the heat stabilizer is lead salt stabilizer, the lubricant is polyethylene wax, the plasticizer is dioctyl phthalate, and the antioxidant is a mixture of pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] and tris [2, 4-di-tert-butylphenyl ] phosphite.
4. A modified PVC communication tube as claimed in claim 3, wherein the dispersing agent is at least one of triethylhexylphosphoric acid, sodium dodecylsulfate, methylpentanol, cellulose derivative, polyacrylamide.
5. The method for preparing a modified PVC communication tube according to claim 4, wherein the method comprises the following steps:
putting PVC resin and CM powder into a high-speed mixer, stirring for 10-20min at 80-90 ℃, adding a heat stabilizer, a dispersing agent, a lubricating agent, a silane coupling agent, a modified filler and an antioxidant, stirring for 10-30min at 160 ℃ under 140-.
6. The method for preparing a modified PVC communication pipe according to claim 5, wherein the preparation of the modified filler comprises the following steps:
modified manganese-copper alloy: grinding the manganese-copper alloy into powder, adding deionized water, stirring to form a suspension, adding ethylene diamine tetraacetic acid, adding alkyl glucoside, continuously stirring for 5-8H at 80-100 ℃, keeping the temperature for 8-12H, cooling, filtering and drying to obtain the modified manganese-copper alloy;
modified carbon black: adding conductive carbon black into deionized water, stirring to obtain a suspension, adding sodium stearate, adding sodium sulfate, continuously stirring for 1-3H at the temperature of 30-45 ℃, filtering after the reaction is finished, and drying to obtain modified carbon black;
modified filler: adding the modified manganese-copper alloy into deionized water, stirring to obtain a suspension, adding modified carbon black, adding tetra-n-propyl zirconate, adding sodium carbonate, stirring for 1-2H, carrying out ultrasonic oscillation for 3-5H at 50-60 ℃, carrying out heat preservation for 5-8H at 80-90 ℃, adding titanium dioxide powder, boric acid solution and sodium citrate, stirring uniformly, carrying out water bath heating for 2-3H at 100-120 ℃, cooling, washing, filtering and drying to obtain the modified filler.
7. The method for preparing the modified PVC communication tube as claimed in claim 6, wherein the manganese-copper alloy is subjected to a jet milling method to obtain ultrafine manganese-copper alloy powder.
8. The method for preparing a modified PVC communication tube according to claim 7, wherein in the step of preparing the modified manganin alloy, the drying condition is 120 ℃ and the drying is 1-2H.
9. The method of claim 8, wherein the modified carbon black is dried at 100 ℃ for 3-5H.
10. The modified PVC communication pipe and the method for preparing the same according to claim 9, wherein the modified filler is prepared by the step of preparing the modified filler, wherein the ultrasonic oscillation frequency is 5 to 12 Khz.
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| CN115073861A (en) * | 2022-07-15 | 2022-09-20 | 安徽瑞丰管业有限公司 | Anti-tensile polyvinyl chloride communication pipe and preparation method thereof |
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| JPS57108164A (en) * | 1980-12-24 | 1982-07-06 | Shiraishi Chuo Kenkyusho:Kk | Inorganic surface-modified filler and thermoplastic resin composition blended therewith |
| CN110408146A (en) * | 2019-08-01 | 2019-11-05 | 陈小强 | A kind of preparation method of high-strength anti-flaming architectural electricity threading tube material |
| CN110452479A (en) * | 2019-08-28 | 2019-11-15 | 日丰企业集团有限公司 | A kind of conductive and heat-conductive wear-resisting PVC tubing and preparation method thereof |
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| JPS57108164A (en) * | 1980-12-24 | 1982-07-06 | Shiraishi Chuo Kenkyusho:Kk | Inorganic surface-modified filler and thermoplastic resin composition blended therewith |
| CN110408146A (en) * | 2019-08-01 | 2019-11-05 | 陈小强 | A kind of preparation method of high-strength anti-flaming architectural electricity threading tube material |
| CN110452479A (en) * | 2019-08-28 | 2019-11-15 | 日丰企业集团有限公司 | A kind of conductive and heat-conductive wear-resisting PVC tubing and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115073861A (en) * | 2022-07-15 | 2022-09-20 | 安徽瑞丰管业有限公司 | Anti-tensile polyvinyl chloride communication pipe and preparation method thereof |
| CN115073861B (en) * | 2022-07-15 | 2023-09-01 | 安徽瑞丰管业有限公司 | Stretch-resistant polyvinyl chloride communication tube and preparation method thereof |
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Denomination of invention: A modified PVC communication tube and its preparation method Effective date of registration: 20221211 Granted publication date: 20220325 Pledgee: Industrial and Commercial Bank of China Limited Hangzhou Fuyang sub branch Pledgor: HANGZHOU UNICOM. PIPING INDUSTRY Co.,Ltd. Registration number: Y2022980026052 |