CN111440371A - Anti-freezing polyethylene power tube and preparation method thereof - Google Patents
Anti-freezing polyethylene power tube and preparation method thereof Download PDFInfo
- Publication number
- CN111440371A CN111440371A CN202010213356.9A CN202010213356A CN111440371A CN 111440371 A CN111440371 A CN 111440371A CN 202010213356 A CN202010213356 A CN 202010213356A CN 111440371 A CN111440371 A CN 111440371A
- Authority
- CN
- China
- Prior art keywords
- parts
- density polyethylene
- polyethylene
- power tube
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 28
- -1 polyethylene Polymers 0.000 title claims abstract description 27
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000007710 freezing Methods 0.000 title claims abstract description 12
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 67
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 45
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 45
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 14
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 14
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 229910000077 silane Inorganic materials 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 11
- TVWTZAGVNBPXHU-FOCLMDBBSA-N dioctyl (e)-but-2-enedioate Chemical compound CCCCCCCCOC(=O)\C=C\C(=O)OCCCCCCCC TVWTZAGVNBPXHU-FOCLMDBBSA-N 0.000 claims abstract description 11
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 239000012745 toughening agent Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 30
- 230000002528 anti-freeze Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- LYRCQNDYYRPFMF-UHFFFAOYSA-N trimethyltin Chemical compound C[Sn](C)C LYRCQNDYYRPFMF-UHFFFAOYSA-N 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012286 potassium permanganate Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 8
- 238000005303 weighing Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical group CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000010356 wave oscillation Effects 0.000 description 1
- 238000003466 welding Methods 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
-
- 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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- 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
Abstract
The invention belongs to the technical field of electric power protection pipelines, and particularly relates to an anti-freezing polyethylene electric power tube and a preparation method thereof, wherein the anti-freezing polyethylene electric power tube comprises 10-12 parts of carbon nano tube modified high-density polyethylene, 88-90 parts of high-density polyethylene, 3-5 parts of a toughening agent, 3-5 parts of a filler, 6-8 parts of a coupling agent, 1-2 parts of a plasticizer and 1-2 parts of a bridging agent; during preparation, carbon nano tube modified high-density polyethylene, basic magnesium sulfate whisker, KH550 silane, acrylate rubber, silicon dioxide, dioctyl maleate and trimethyl hexamethylene diamine are stirred to react to obtain molten liquid; then placing the mixture into a double-screw extruder, wherein the temperature of the feeding section is controlled to be 110-. The invention not only has good low temperature resistance, but also has strong mechanical properties such as impact strength, tensile strength, elongation at break and the like.
Description
Technical Field
The invention belongs to the technical field of electric power protection pipelines, and particularly relates to an anti-freezing polyethylene electric power pipe and a preparation method thereof.
Background
The current electric power tube is a product which is subjected to hot dip coating by PE (modified polyethylene) or is coated with epoxy resin inside and outside, and has excellent corrosion resistance. Meanwhile, the coating has good electrical insulation and can not generate electric corrosion. Low water absorption, high mechanical strength and small friction coefficient, and can achieve the purpose of long-term use. And can also effectively prevent the damage of the plant root system and the soil environmental stress, and the like.
The electric power pipe adopts the formula pipe laying of burying more, and need weld the electric power pipe, needs natural cooling after the welding is accomplished, and because of the winter temperature is lower, natural cooling is very fast, freezes the pipeline easily. In addition, the power tube is more brittle and hard in winter than in summer, if the power tube is easily broken due to violent loading and unloading, the internal cable cannot be protected in time, and loss is caused, so that the anti-freezing performance of the power tube is particularly important.
The patent with the application number of CN201510666712.1 discloses a low-temperature-resistant high-density polyethylene power cable protection tube, which comprises high-density polyethylene, a toughening agent, a filler, a coupling agent, a plasticizer and a bridging agent, wherein the toughening agent is liquid acrylate rubber, the filler is mica powder, the coupling agent is gamma-mercaptopropyltriethoxysilane, the plasticizer is dioctyl maleate, and the bridging agent is trimethylhexamethylenediamine.
Although the high-density polyethylene, the toughening agent, the filler, the coupling agent, the plasticizer and the bridging agent in the patent scheme enable the produced power cable protection pipe to have the characteristics of good low temperature resistance and long service life; but also has the following disadvantages: the high-density polyethylene used by the method has the defects of low toughness, low hardness, poor environmental stress cracking energy and the like, and is used for burying the power pipe underground, and if the ground is pressed by a heavy vehicle, the impact strength of the power pipe cannot meet the requirement.
Disclosure of Invention
The invention aims to provide an antifreezing polyethylene electric power tube and a preparation method thereof, which not only have good low-temperature resistance, but also have stronger mechanical properties such as impact strength, tensile strength, elongation at break and the like.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an anti-freezing high-density polyethylene power tube comprises, by mass, 10-12 parts of carbon nanotube-modified high-density polyethylene, 88-90 parts of high-density polyethylene, 3-5 parts of a toughening agent, 3-5 parts of a filler, 6-8 parts of a coupling agent, 1-2 parts of a plasticizer and 1-2 parts of a bridging agent.
Further, the toughening agent is acrylate rubber, the filler is silicon dioxide, the coupling agent is KH550 silane, the plasticizer is dioctyl maleate, and the bridging agent is trimethyl hexamethylene diamine.
Further, the raw material of the anti-freezing polyethylene power tube also comprises 5-8 parts of basic magnesium sulfate whisker. The basic magnesium sulfate whisker has a single crystal structure and is needle-shaped or fibrous, can change the crystallization behavior of high-density polyethylene when added into the high-density polyethylene, has a relatively obvious reinforcing effect on the high-density polyethylene, has a small self-expansion coefficient, and can also play a filling role, and can be arranged along the flow direction of a melt after being filled into the high-density polyethylene, so that the linear expansion coefficient of the high-density polyethylene composite material is favorably reduced, and the mechanical property of the high-density polyethylene is enhanced.
Further, the anti-freezing polyethylene power tube comprises, by mass, 11 parts of carbon nanotube-modified high-density polyethylene, 89 parts of high-density polyethylene, 6.5 parts of basic magnesium sulfate whisker, 4 parts of acrylate rubber, 4 parts of silicon dioxide, 7 parts of KH550 silane, 1.5 parts of dioctyl maleate and 1.5 parts of trimethylhexamethylene diamine.
The invention also discloses a preparation method of the anti-freezing high-density polyethylene power tube, which comprises the following steps:
a1, melting the carbon nano tube modified high-density polyethylene, the basic magnesium sulfate whisker and the KH550 silane at the temperature of 100-120 ℃, fully and uniformly stirring, and reacting for 30-40min under a stirring state; KH550 silane coupling agent and high-density polyethylene are subjected to silane crosslinking reaction, so that the mechanical property of the high-density polyethylene is enhanced.
A2, adding acrylate rubber, silicon dioxide, dioctyl maleate and trimethyl hexamethylene diamine at the temperature of 100-120 ℃, and stirring for reaction for 20-30min to obtain molten liquid;
a3, placing the molten liquid into a double-screw extruder, wherein the temperature of a feeding section of the double-screw extruder is controlled to be 110 ℃ plus 100 ℃, the temperature of a connecting body is controlled to be 160 ℃ plus 150 ℃, the temperature of a neck mold is controlled to be 260 ℃ plus 220 ℃, the temperature of a core mold temperature machine is controlled to be 205 ℃ plus 195 ℃, and the extrusion speed is 1.0-1.6m/min, so as to obtain the power tube.
Further, the preparation method of the carbon nanotube modified high-density polyethylene comprises the following steps:
b1, according to the mass parts, taking 10 parts of carbon nanotubes, and dispersing the carbon nanotubes in a solvent with the volume ratio of 3: 1, treating the mixed solution by 20-25 parts of mixed solution of 98% concentrated sulfuric acid and 68% concentrated nitric acid in a stirring state for 10-12 hours, filtering and cleaning to obtain the cut carbon nano tube with carboxyl;
b2 heating 100 parts of high-density polyethylene to 100-120 ℃, adding the carbon nano tube cut in the step B1 after the high-density polyethylene is completely melted, fully and uniformly stirring, adding 10-20 parts of potassium permanganate powder, and stirring and reacting for 30-40 min;
and B3, cooling and granulating the reaction product of B2 to obtain the carbon nano tube modified high-density polyethylene.
The oxidation of carbon nanotube (SWNT) in concentrated sulfuric acid and concentrated nitric acid produces SWNT-COOH, which reacts with high density polyethylene under the strong oxidation of potassium permanganate to make the-OH of SWNT-COOH react with the-H of high density polyethylene to obtain high density polyethylene grafted with "SWNT-CO-".
Further, in step B1, when the carbon nanotubes are reacted in 98% concentrated sulfuric acid and 68% concentrated nitric acid, ultrasonic waves are used for oscillation, the ultrasonic frequency is 20000-30000HZ, and the reaction time is 2-3 hours. Under the oscillation of ultrasonic waves, the reaction time can be reduced, and the reaction fullness can also be increased.
Further, in the step B2, after the reaction is completed, 0.2 to 0.4 part of trimethyltin is further added and stirred uniformly. The addition of the trimethyltin can enhance the chemical stability of the carbon nanotube modified high-density polyethylene in a high-temperature state, avoid the bond fracture of the high-density polyethylene and the carbon nanotube in a cooling stage, stabilize the chemical bond in the processes of cooling and heating in the production of the power tube and ensure the mechanical strength of the power tube.
The invention has the following beneficial effects:
1. according to the invention, the carbon nanotube modified high-density polyethylene is introduced into the high-density polyethylene power tube, wherein the carbon nanotube modified high-density polyethylene accounts for about 10% of the whole high-density polyethylene, and the carbon nanotube group is added into the carbon nanotube modified high-density polyethylene through a grafting reaction, so that the introduction of the carbon nanotube group greatly increases the mechanical properties of the power tube, such as impact strength, tensile strength, elongation at break and the like, and the produced power tube can meet the requirements of low temperature resistance and mechanical properties of the power tube.
2. The carbon nanotube modified high-density polyethylene is prepared by grafting carboxyl on the carbon nanotube, then reacting with the high-density polyethylene, grafting a carbon nanotube group on the high-density polyethylene, and adding trimethyltin for protecting chemical bonds after cooling, so that the damage to the chemical bonds in the production of the power tube is avoided, and the mechanical property of the power tube can be better ensured.
3. When the power tube is prepared, the basic magnesium sulfate whisker is added, so that the effect of filling and changing high-density polyvinyl chloride can be achieved, and the mechanical property of the power tube is improved; KH550 silane is used as a coupling agent, and the coupling agent and the high-density polyethylene are subjected to silane crosslinking reaction, so that the mechanical property of the high-density polyethylene is enhanced.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following embodiments are further described.
Examples 1,
The preparation method of the antifreeze polyethylene power tube comprises the following steps:
1. weighing 10kg of carbon nanotubes, and dispersing in a volume ratio of 3: 1, mixing 98% concentrated sulfuric acid by mass and 68% concentrated nitric acid by mass, wherein the mixed solution is 22.5kg by mass, oscillating by using ultrasonic waves with the ultrasonic frequency of 25000HZ for 2.5 hours, filtering, and cleaning by using deionized water to obtain the cut carbon nano tube with carboxyl;
2. heating 100 parts of high-density polyethylene to 110 ℃, adding the cut carbon nano tube after the high-density polyethylene is completely melted, fully and uniformly stirring, adding 15kg of potassium permanganate powder, stirring and reacting for 35min, adding 0.4kg of trimethyltin after the reaction is finished, and uniformly stirring;
3. and cooling and granulating the reaction product to obtain the carbon nano tube modified high-density polyethylene.
4. Weighing 11kg of the prepared carbon nanotube modified high-density polyethylene, 89kg of the high-density polyethylene, 6.5kg of basic magnesium sulfate whisker and 7kg of KH550 silane, mixing, melting at the temperature of 110 ℃, fully and uniformly stirring, and reacting for 35min under a stirring state;
5. adding 4kg of acrylate rubber, 4kg of silicon dioxide, 1.5kg of dioctyl maleate and 1.5kg of trimethylhexamethylene diamine at the temperature of 110 ℃, and stirring for reacting for 25min to obtain molten liquid;
6. and (3) putting the molten liquid into a double-screw extruder, wherein the temperature of a feeding section of the double-screw extruder is controlled at 105 ℃, the temperature of a connecting body is controlled at 155 ℃, the temperature of a mouth mold is controlled at 240 ℃, the temperature of a core mold and a mold temperature machine is controlled at 200 ℃, and the extrusion speed is 1.3m/min, so that the power tube is obtained.
Examples 2,
The preparation method of the antifreeze polyethylene power tube comprises the following steps:
1. weighing 10kg of carbon nanotubes, and dispersing in a volume ratio of 3: 1, mixing a mixed solution of 98% concentrated sulfuric acid and 68% concentrated nitric acid, wherein the mixed solution has a mass of 20kg, oscillating by using ultrasonic waves after mixing, and carrying out ultrasonic wave oscillation at a frequency of 20000HZ for 2 hours, filtering, and cleaning by using deionized water to obtain the carbon nano tube with the carboxyl after cutting;
2. heating 100 parts of high-density polyethylene to 100 ℃, adding the cut carbon nano tube after the high-density polyethylene is completely melted, fully and uniformly stirring, adding 10kg of potassium permanganate powder, stirring and reacting for 30min, adding 0.2kg of trimethyltin after the reaction is finished, and uniformly stirring;
3. and cooling and granulating the reaction product to obtain the carbon nano tube modified high-density polyethylene.
4. Weighing 10kg of the prepared carbon nanotube modified high-density polyethylene, and weighing 88kg of the high-density polyethylene, 5kg of basic magnesium sulfate whisker and 6kg of KH550 silane, mixing, melting at the temperature of 100 ℃, fully and uniformly stirring, and reacting for 30min under a stirring state;
5. adding 3kg of acrylate rubber, 3kg of silicon dioxide, 1kg of dioctyl maleate and 1kg of trimethyl hexamethylene diamine at the temperature of 100 ℃, and stirring for reacting for 20min to obtain molten liquid;
6. and (3) putting the molten liquid into a double-screw extruder, wherein the temperature of a feeding section of the double-screw extruder is controlled at 100 ℃, the temperature of a connecting body is controlled at 150 ℃, the temperature of a neck mold is controlled at 220 ℃, the temperature of a core mold and a mold temperature machine is controlled at 195 ℃, and the extrusion speed is 1.0m/min, so as to obtain the power tube.
Examples 3,
The preparation method of the antifreeze polyethylene power tube comprises the following steps:
1. weighing 10kg of carbon nanotubes, and dispersing in a volume ratio of 3: 1, mixing 98% concentrated sulfuric acid by mass and 68% concentrated nitric acid by mass, oscillating by using ultrasonic waves after mixing, wherein the ultrasonic wave frequency is 30000HZ, the reaction time is 3 hours, filtering, and cleaning by using deionized water to obtain the carbon nano tube with the cut carboxyl;
2. heating 100 parts of high-density polyethylene to 120 ℃, adding the cut carbon nano tube after the high-density polyethylene is completely melted, fully and uniformly stirring, adding 20kg of potassium permanganate powder, stirring and reacting for 40min, adding 0.4kg of trimethyltin after the reaction is finished, and uniformly stirring;
3. and cooling and granulating the reaction product to obtain the carbon nano tube modified high-density polyethylene.
4. Weighing 12kg of the prepared carbon nanotube modified high-density polyethylene, weighing 90kg of the high-density polyethylene, 8kg of basic magnesium sulfate whisker and 8kg of KH550 silane, mixing, melting at the temperature of 120 ℃, fully and uniformly stirring, and reacting for 40min under a stirring state;
5. adding 5kg of acrylate rubber, 5kg of silicon dioxide, 2kg of dioctyl maleate and 2kg of trimethylhexamethylene diamine at the temperature of 120 ℃, and stirring for reacting for 30min to obtain molten liquid;
6. and (3) putting the molten liquid into a double-screw extruder, wherein the temperature of a feeding section of the double-screw extruder is controlled at 110 ℃, the temperature of a connecting body is controlled at 160 ℃, the temperature of a neck mold is controlled at 260 ℃, the temperature of a core mold and a mold temperature machine is controlled at 205 ℃, and the extrusion speed is 1.6m/min, so as to obtain the power tube.
Examples 4,
Compared with the antifreeze polyethylene electric power tube of the embodiment 1, the preparation method of the antifreeze polyethylene electric power tube only differs from that of the embodiment 1 in that: after the reaction for preparing the carbon nano tube modified high-density polyethylene is finished, the trimethyl tin is not added.
Examples 5,
Compared with the antifreeze polyethylene electric power tube of the embodiment 1, the preparation method of the antifreeze polyethylene electric power tube only differs from that of the embodiment 1 in that: the basic magnesium sulfate whisker is not added into the power tube.
Comparative examples,
Comparative example an electric power tube was prepared using the solution of patent application No. CN 201510666712.1.
After the power tubes of examples 1 to 5 and comparative examples were prepared, the power tubes of the respective examples were tested for mechanical indexes such as impact strength, tensile strength and elongation at break, respectively, to obtain data as follows:
from the above test results, it can be seen that:
1. from the comparison between example 1 and examples 2 and 3, it can be seen that the power tube produced by using the power tube formulation of example 1 has the best mechanical properties such as impact strength, tensile strength and elongation at break.
2. From the comparison between example 1 and example 4, it can be seen that after the reaction of preparing the carbon nanotube modified high density polyethylene is completed, the addition of trimethyltin can improve the mechanical properties of the power tube, such as impact strength, tensile strength, elongation at break, and the like.
3. From the comparison between example 1 and example 5, it can be seen that the addition of basic magnesium sulfate whiskers to the electric power pipe can enhance the mechanical properties of the electric power pipe, such as impact strength, tensile strength, and elongation at break.
4. From the comparison of examples 1 to 5 with the comparative example, it can be seen that the mechanical properties of the power tube of the present invention are better than those of the comparative example.
The antifreeze polyethylene power tube and the preparation method thereof provided by the invention are described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides an anti-freezing polyethylene power tube which characterized in that: the composite material comprises the following raw materials in parts by weight: 10-12 parts of carbon nano tube modified high-density polyethylene, 88-90 parts of high-density polyethylene, 3-5 parts of toughening agent, 3-5 parts of filler, 6-8 parts of coupling agent, 1-2 parts of plasticizer and 1-2 parts of bridging agent.
2. The antifreeze polyethylene power pipe of claim 1, wherein: the toughening agent is acrylate rubber, the filling agent is silicon dioxide, the coupling agent is KH550 silane, the plasticizer is dioctyl maleate, and the bridging agent is trimethyl hexamethylene diamine.
3. The antifreeze polyethylene power pipe of claim 2, wherein: the raw materials of the antifreezing polyethylene power tube also comprise 5-8 parts of basic magnesium sulfate whisker.
4. The antifreeze polyethylene power pipe of claim 3, wherein: the anti-freezing polyethylene power tube comprises, by mass, 11 parts of carbon nanotube modified high-density polyethylene, 89 parts of high-density polyethylene, 6.5 parts of basic magnesium sulfate whisker, 4 parts of acrylate rubber, 4 parts of silicon dioxide, 7 parts of a coupling agent, 1.5 parts of dioctyl maleate and 1.5 parts of trimethylhexamethylene diamine.
5. The method for preparing the antifreeze polyethylene power tube as claimed in claim 3, wherein the method comprises the following steps: comprises the following steps of (a) carrying out,
a1, melting the carbon nano tube modified high-density polyethylene, the basic magnesium sulfate whisker and the KH550 silane at the temperature of 100-120 ℃, fully and uniformly stirring, and reacting for 30-40min under the stirring state;
a2, adding acrylate rubber, silicon dioxide, dioctyl maleate and trimethyl hexamethylene diamine at the temperature of 100-120 ℃, and stirring for reaction for 20-30min to obtain molten liquid;
a3, placing the molten liquid into a double-screw extruder, wherein the temperature of a feeding section of the double-screw extruder is controlled to be 110 ℃ plus 100 ℃, the temperature of a connecting body is controlled to be 160 ℃ plus 150 ℃, the temperature of a neck mold is controlled to be 260 ℃ plus 220 ℃, the temperature of a core mold temperature machine is controlled to be 205 ℃ plus 195 ℃, and the extrusion speed is 1.0-1.6m/min, so as to obtain the power tube.
6. The method for preparing the antifreeze polyethylene power tube as claimed in claim 5, wherein the method comprises the following steps: the preparation method of the carbon nano tube modified high-density polyethylene comprises the following steps:
b1, according to the mass parts, taking 10 parts of carbon nanotubes, and dispersing the carbon nanotubes in a solvent with the volume ratio of 3: 1, treating the mixed solution by 20-25 parts of mixed solution of 98% concentrated sulfuric acid and 68% concentrated nitric acid in a stirring state for 10-12 hours, filtering and cleaning to obtain the cut carbon nano tube with carboxyl;
b2 heating 100 parts of high-density polyethylene to 100-120 ℃, adding the carbon nano tube cut in the step B1 after the high-density polyethylene is completely melted, fully and uniformly stirring, adding 10-20 parts of potassium permanganate powder, and stirring and reacting for 30-40 min;
and B3, cooling and granulating the reaction product of B2 to obtain the carbon nano tube modified high-density polyethylene.
7. The method for preparing the antifreeze polyethylene power tube as claimed in claim 6, wherein the method comprises the following steps: in step B1, when the carbon nanotubes are reacted in 98% concentrated sulfuric acid and 68% concentrated nitric acid, ultrasonic wave is used for oscillation, the ultrasonic wave frequency is 20000- & ltwb00 & gtHZ, and the reaction time is 2-3 hours.
8. The method for preparing the antifreeze polyethylene power tube as claimed in claim 7, wherein the method comprises the following steps: in the step B2, after the reaction is finished, 0.2-0.4 part of trimethyl tin is added and stirred uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213356.9A CN111440371A (en) | 2020-03-24 | 2020-03-24 | Anti-freezing polyethylene power tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010213356.9A CN111440371A (en) | 2020-03-24 | 2020-03-24 | Anti-freezing polyethylene power tube and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111440371A true CN111440371A (en) | 2020-07-24 |
Family
ID=71629518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010213356.9A Pending CN111440371A (en) | 2020-03-24 | 2020-03-24 | Anti-freezing polyethylene power tube and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111440371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117659543A (en) * | 2023-12-06 | 2024-03-08 | 广东中讯通讯设备实业有限公司 | High-strength plastic-steel composite PE cable protection pipe and preparation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640923A (en) * | 2004-12-10 | 2005-07-20 | 中国科学院长春应用化学研究所 | In situ polymerization preparing method for carbon nano tube and polytene composite material |
| CN102850628A (en) * | 2012-09-18 | 2013-01-02 | 浙江新大塑料管件有限公司 | Carbon-nano-tube-reinforced polyethylene tube |
| CN102977443A (en) * | 2012-11-13 | 2013-03-20 | 成都易信达科技有限公司 | Carbon fiber rigid cable engineering pipe |
| US20130190442A1 (en) * | 2012-01-23 | 2013-07-25 | King Fahd University Of Petroleum And Minerals | Linear low density polyethylene nanocomposite fibers and method of making the same |
| CN103980595A (en) * | 2014-04-30 | 2014-08-13 | 中国科学院化学研究所 | Modified ultrahigh molecular polyethylene for 3D printing and preparation method thereof |
| CN103980593A (en) * | 2014-04-30 | 2014-08-13 | 中国科学院化学研究所 | Modified high density polyethylene 3D printing moulding material and preparation method |
| CN105131406A (en) * | 2015-10-16 | 2015-12-09 | 太仓市晨洲塑业有限公司 | Low-temperature-resistant high-density polyethylene power cable protective tube |
| CN105482233A (en) * | 2016-01-27 | 2016-04-13 | 广东省南粤交通揭惠高速公路管理中心 | Ultrahigh molecular weight polyethylene composition for extrusion molding escape pipeline |
| CN106117949A (en) * | 2016-07-12 | 2016-11-16 | 西华大学 | High-density polyethylene resin based nano composite material and preparation method thereof |
| CN106947170A (en) * | 2017-04-27 | 2017-07-14 | 安徽国登管业科技有限公司 | MPP power pipes and preparation method thereof |
| CN108373559A (en) * | 2018-02-02 | 2018-08-07 | 桂林理工大学 | A kind of graphene/carbon nano-tube collaboration enhancing polyethylene pipe and preparation method thereof |
| CN108948499A (en) * | 2018-08-01 | 2018-12-07 | 浙江邦德管业有限公司 | A kind of shock resistance high-strength polyethylene communication tube and preparation method thereof |
| CN110066462A (en) * | 2019-05-21 | 2019-07-30 | 合肥市丽红塑胶材料有限公司 | A kind of PP resin modified weatherable materials and its preparation process |
-
2020
- 2020-03-24 CN CN202010213356.9A patent/CN111440371A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640923A (en) * | 2004-12-10 | 2005-07-20 | 中国科学院长春应用化学研究所 | In situ polymerization preparing method for carbon nano tube and polytene composite material |
| US20130190442A1 (en) * | 2012-01-23 | 2013-07-25 | King Fahd University Of Petroleum And Minerals | Linear low density polyethylene nanocomposite fibers and method of making the same |
| CN102850628A (en) * | 2012-09-18 | 2013-01-02 | 浙江新大塑料管件有限公司 | Carbon-nano-tube-reinforced polyethylene tube |
| CN102977443A (en) * | 2012-11-13 | 2013-03-20 | 成都易信达科技有限公司 | Carbon fiber rigid cable engineering pipe |
| CN103980595A (en) * | 2014-04-30 | 2014-08-13 | 中国科学院化学研究所 | Modified ultrahigh molecular polyethylene for 3D printing and preparation method thereof |
| CN103980593A (en) * | 2014-04-30 | 2014-08-13 | 中国科学院化学研究所 | Modified high density polyethylene 3D printing moulding material and preparation method |
| CN105131406A (en) * | 2015-10-16 | 2015-12-09 | 太仓市晨洲塑业有限公司 | Low-temperature-resistant high-density polyethylene power cable protective tube |
| CN105482233A (en) * | 2016-01-27 | 2016-04-13 | 广东省南粤交通揭惠高速公路管理中心 | Ultrahigh molecular weight polyethylene composition for extrusion molding escape pipeline |
| CN106117949A (en) * | 2016-07-12 | 2016-11-16 | 西华大学 | High-density polyethylene resin based nano composite material and preparation method thereof |
| CN106947170A (en) * | 2017-04-27 | 2017-07-14 | 安徽国登管业科技有限公司 | MPP power pipes and preparation method thereof |
| CN108373559A (en) * | 2018-02-02 | 2018-08-07 | 桂林理工大学 | A kind of graphene/carbon nano-tube collaboration enhancing polyethylene pipe and preparation method thereof |
| CN108948499A (en) * | 2018-08-01 | 2018-12-07 | 浙江邦德管业有限公司 | A kind of shock resistance high-strength polyethylene communication tube and preparation method thereof |
| CN110066462A (en) * | 2019-05-21 | 2019-07-30 | 合肥市丽红塑胶材料有限公司 | A kind of PP resin modified weatherable materials and its preparation process |
Non-Patent Citations (3)
| Title |
|---|
| 刘涛 等: ""碳纳米管/低密度聚乙烯复合材料的性能研究"", 《第九届ABC中日先进高分子材料研讨会》 * |
| 常启兵: "《复合材料》", 30 September 2018, 江苏凤凰美术出版社 * |
| 鲁红典 等: ""聚乙烯/碱式硫酸镁晶须复合材料的研究"", 《化工新型材料》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117659543A (en) * | 2023-12-06 | 2024-03-08 | 广东中讯通讯设备实业有限公司 | High-strength plastic-steel composite PE cable protection pipe and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103865295B (en) | Method for polymer surface modification of hollow glass micro-bead | |
| CN101955631B (en) | Preparation method of polyaniline modified multi-wall carbon canotube/epoxy resin composite material | |
| CN103131374A (en) | Inorganic/organic nano particle compound modification epoxy resin adhesive and preparation method thereof | |
| CN101307856A (en) | Steel pipeline corrosion proof reinforcing method | |
| CN104059334A (en) | Method for preparing three-phase composite solid buoyancy material | |
| CN103122125A (en) | Resin mixture containing carbon nano tube for carbon fiber wet process winding and preparation method thereof | |
| CN109608668A (en) | A kind of preparation of carbon fiber/graphene oxide/epoxy prepreg and carbon fibre composite | |
| CN111440371A (en) | Anti-freezing polyethylene power tube and preparation method thereof | |
| CN109897569B (en) | Conductive adhesive resin for steel wire pipe for coal mine, preparation method of conductive adhesive resin and steel wire pipe | |
| CN103773090A (en) | Glass reinforced plastic composite coating material with good anti-corrosion effect and preparation method thereof | |
| CN103408927B (en) | Composite fibre modified nylon materials and preparation method thereof | |
| CN112724466B (en) | Impregnating compound for basalt fiber reinforced polyethylene resin and preparation method thereof | |
| CN108690330A (en) | A kind of special light composite material of wind power plant | |
| CN114496369B (en) | Light reinforcement and preparation method and application thereof | |
| CN115108778B (en) | High-ductility concrete composite material and preparation method thereof | |
| CN110527192A (en) | A kind of long basalt fibre reinforced polypropylene material and preparation method thereof | |
| CN109830329A (en) | A kind of high-intensity and high-tenacity composite electric flat cable | |
| CN113831620B (en) | High heat-resistant creep-resistant pipe composition and preparation method thereof | |
| CN109181104B (en) | High-temperature-resistant glass fiber reinforced polypropylene composite material | |
| CN104045975B (en) | Preparation method of particle reinforced and toughened resin based fibrous composite material | |
| WO2021093303A1 (en) | Carbon fiber composite material and preparation method therefor | |
| CN105131601A (en) | High-strength cable material and preparation method thereof | |
| CN112094481A (en) | Preparation method of graphene/carbon nanotube/epoxy resin composite material | |
| CN101974191A (en) | Preparation method and application of glass microsphere enhanced polymethacrylimide foam material | |
| CN101307216A (en) | Epoxy resin adhesive adhesive for adhering fluororubber with metal and method for preparing same |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200724 |