CN104292639B - A kind of preparation method of the recyclable insulant for high voltage direct current cable - Google Patents
A kind of preparation method of the recyclable insulant for high voltage direct current cable Download PDFInfo
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- CN104292639B CN104292639B CN201410557927.5A CN201410557927A CN104292639B CN 104292639 B CN104292639 B CN 104292639B CN 201410557927 A CN201410557927 A CN 201410557927A CN 104292639 B CN104292639 B CN 104292639B
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- insulant
- antioxidant
- high voltage
- direct current
- recyclable
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 18
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- 229920001155 polypropylene Polymers 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000003078 antioxidant Effects 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 229920000098 polyolefin Polymers 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 239000000806 elastomer Substances 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 11
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229920001577 copolymer Polymers 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 6
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-Octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K Aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L Magnesium hydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 4
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 4
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 4
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 4
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 4
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-2-hydroxy-5-methylphenyl)methyl]-4-methylphenol Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Stearin Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 239000004698 Polyethylene (PE) Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 235000012254 magnesium hydroxide Nutrition 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 150000004291 polyenes Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Abstract
The present invention relates to the preparation method of a kind of recyclable insulant for high voltage direct current cable, belong to electrical equipment technical field.This material uses polypropylene and polyolefin elastomer and antioxidant, processing aid and fire retardant, is prepared from by melt-blending process.Insulant prepared by the method has the feature of recyclable recycling, it is possible to effectively protect environment, saves the energy, is a kind of environmentally friendly cable insulation material.Insulant prepared by the method can be effectively improved the mechanical performance of polypropylene material, does not reduce its electric property and hot property.Insulant prepared by the method is resistant to this electric field and elevated operating temperature, significantly improves tolerable temperature and the tolerance electric field intensity of insulant, can effectively apply in high voltage direct current cable.
Description
Technical field
The present invention relates to the preparation method of a kind of recyclable insulant for high voltage direct current cable, belong to power equipment technology
Field.
Background technology
HVDC Transmission Technology has a lot of advantage relative to UHV AC transmission technique, it is possible to saves a large amount of land resource, pacify without system
Full problem, without AC system cascading failure risk on a large scale.Therefore HVDC Transmission Technology will at remote, Large Copacity and
Distributed energy transmission of electricity aspect is widely adopted, and this is also the environmental effect of the following electrical network of reduction, improves having of electric network reliability
Effect approach.And plastic power cable is due to cheap, easy to process, dielectric properties and good mechanical property, it is widely used
In power transmission and distribution project.
Cable insulation material in currently used typically uses polyvinyl resin as matrix material, and operating temperature is generally at 70 DEG C
Below and its electric property is limited, so being generally used in mesolow cable.And in order to improve insulant further
Operating temperature and running voltage, carried out crosslinking and produced crosslinked polyethylene polyethylene.Crosslinked polyethylene has the most hot
Energy and mechanical performance, it is possible to tolerate higher operating temperature and electric field intensity.But crosslinked polyethylene is a kind of thermosets,
Environmental pollution can not be easily caused in service life to after date recycling and be difficult to degrade.Crosslinked polyethylene exists simultaneously
In production process, power consumption seriously and can cause environmental pollution in the course of processing.
Therefore to improve operating temperature and the tolerance electric field intensity of insulant further, and improve insulant and environment
The compatibility, needs to develop a kind of noncrosslinking thermoplastic insulation material.Polypropylene has higher work temperature relative to polyethylene
Degree and dielectric strength, but under room temperature, polyacrylic mechanical performance is bad, is very easy to brittle failure, to transport and the installation of cable
Process brings the biggest difficulty.
Summary of the invention
The purpose of the present invention is to propose to the preparation method of a kind of recyclable insulant for high voltage direct current cable, use polyene
Olefin elastomer improves polyacrylic mechanical performance, keeps its good electrical performance and hot property simultaneously, and can reclaim profit again
With.
The preparation method of the recyclable insulant for high voltage direct current cable that the present invention proposes, comprises the steps:
(1) 100 parts of acrylic resins and 25～40 parts of polyolefin elastomers are joined in banbury, at 180～200 DEG C
Under mixing 5～10 minutes, obtain mixing thing, wherein said acrylic resin is isotactic polypropylene, isotactic polypropylene close
Degree is 0.90～0.94g/cm3, melt flow rate (MFR) is 1.7～3.1g/10min, isotacticity ＞ 97%, described polyolefin bullet
Gonosome is ethylene-l-octane copolymer, and the density of ethylene-l-octane copolymer is 0.85～0.88g/cm3, melt flow rate (MFR) is
0.4～0.6g/10min, octene content is 20～30%；
(2) in the mixing thing of step (1), 0.5～1 part of antioxidant, 2～5 parts of fire retardants and 0.5～1 part of processing are added
Auxiliary agent, mixing 5～10 minutes, melting temperature was 180～200 DEG C, obtained the recyclable insulation material for high voltage direct current cable
Material, wherein said antioxidant is antioxidant 1010, antioxidant 2246 or antioxidant 264, and described processing aid is
Tristerin, described fire retardant is magnesium hydroxide, low-hydrate zinc borate, aluminium hydroxide or antimony oxide.
The preparation method of the recyclable insulant for high voltage direct current cable that the present invention proposes, have employed polyolefin elastomer,
During melting mixing, i.e. with the addition of polyolefin elastomer.The advantage using polyolefin elastomer mainly has two, and one is poly-
Olefin elastomer has good mechanical performance, and two is that polyolefin elastomer has the good compatibility with polypropylene.With traditional friendship
Connection polyethylene insulation material is compared, and the advantage of insulant maximum prepared by the inventive method is recyclable recycling, is ring
Border friendly material.There is good mechanical performance, electric property and hot property simultaneously.
Detailed description of the invention
The preparation method of the recyclable insulant for high voltage direct current cable that the present invention proposes, comprises the steps:
(1) 100 parts of acrylic resins and 25～40 parts of polyolefin elastomers are joined in banbury, at 180～200 DEG C
Under mixing 5～10 minutes, obtain mixing thing, wherein said acrylic resin is isotactic polypropylene, isotactic polypropylene close
Degree is 0.90～0.94g/cm3, melt flow rate (MFR) is 1.7～3.1g/10min, isotacticity ＞ 97%, described polyolefin bullet
Gonosome is ethylene-l-octane copolymer, and the density of ethylene-l-octane copolymer is 0.85～0.88g/cm3, melt flow rate (MFR) is
0.4～0.6g/10min, octene content is 20～30%；
(2) in the mixing thing of step (1), 0.5～1 part of antioxidant, 2～5 parts of fire retardants and 0.5～1 part of processing are added
Auxiliary agent, mixing 5～10 minutes, melting temperature was 180～200 DEG C, obtained the recyclable insulation material for high voltage direct current cable
Material, wherein said antioxidant is antioxidant 1010, antioxidant 2246 or antioxidant 264, and described processing aid is
Tristerin, described fire retardant is magnesium hydroxide, low-hydrate zinc borate, aluminium hydroxide or antimony oxide.
Technical scheme will be described in more details by the present invention by the following specific embodiments, but this
Bright it is not limited to case study on implementation proposed below.
The recyclable insulant for high voltage direct current cable that following example obtain, its Evaluation Method of Mechanical Property uses
GB/T 1408-2006 standard, dielectric properties evaluation methodology uses GB/T 1040-2006 standard, and thermal performance evaluation method uses
GB/T 19466.3-2004 standard.
In following example, polypropylene uses the extrusion grade polypropylene of Liaoning Panjin ethylene company limited, and the trade mark is F401, its
Density is 0.91g/cm3, melt flow rate (MFR) is 1.7-3.1g/10min, and isotacticity is 97%.
Polyolefin elastomer uses the ethylene-l-octane copolymer of Dupont Dow company, and the trade mark is 8150, and its density is
0.868g/cm3, melt flow rate (MFR) is 0.5g/10min, and octene content is 25%.
The embodiment of the inventive method introduced below:
Embodiment one:
The isotactic polypropylene F401 of 45 grams and the ethylene-l-octane copolymer 8150 of 15 grams are joined in banbury,
At 190 DEG C mixing 6 minutes, rotating speed was 60r/min, then adds 0.3 gram of antioxidant 1010,0.3 gram of processing aid tristearin
Acid and 1.5 grams of fire retardant aluminium hydroxide, more mixing 5 minutes, melting temperature is 190 DEG C, and rotating speed is 60r/min, obtains one
Planting the recyclable insulant for high voltage direct current cable, its performance is shown in Table 1.
Table 1 performance parameter
As it can be seen from table 1 a kind of recyclable insulation for high voltage direct current cable obtained by the above-mentioned embodiment of the present invention
The elongation at break of material adds by about one time compared to virgin pp, illustrates that its mechanical performance is greatly improved.
Its electric property and hot property are not changed in substantially simultaneously.From the point of view of combination property, this insulant meets wire cable insulating
Requirement, simultaneously this material preparation process need not crosslinking, be a kind of callable thermoplastic, environment almost do not had
There is pollution.
Embodiment two:
The isotactic polypropylene F401 of 45 grams and the ethylene-l-octane copolymer 8150 of 15 grams are joined in banbury,
At 190 DEG C mixing 6 minutes, rotating speed was 60r/min, then adds 0.3 gram of antioxidant 264,0.3 gram of processing aid tristearin
Acid and 1.5 grams of fire retardant magnesium hydroxides, more mixing 5 minutes, melting temperature is 190 DEG C, and rotating speed is 60r/min, obtains one
Plant the recyclable insulant for high voltage direct current cable.
Embodiment three:
The isotactic polypropylene F401 of 45 grams and the ethylene-l-octane copolymer 8150 of 15 grams are joined in banbury,
At 190 DEG C mixing 6 minutes, rotating speed was 60r/min, then adds 0.3 gram of antioxidant 1010,0.3 gram of processing aid tristearin
Acid and 1.5 grams of fire retardant low-hydrate zinc borates, more mixing 5 minutes, melting temperature is 190 DEG C, and rotating speed is 60r/min, obtains
A kind of recyclable insulant for high voltage direct current cable.
Embodiment four:
The isotactic polypropylene F401 of 45 grams and the ethylene-l-octane copolymer 8150 of 15 grams are joined in banbury,
At 190 DEG C mixing 6 minutes, rotating speed was 60r/min, then adds 0.3 gram of antioxidant 1010,0.3 gram of processing aid tristearin
Acid and 1.5 grams of fire retardant antimony oxides, more mixing 5 minutes, melting temperature is 190 DEG C, and rotating speed is 60r/min, obtains
A kind of recyclable insulant for high voltage direct current cable.
Claims (1)
1. the preparation method of recyclable insulant for high voltage direct current cable, it is characterised in that the method include as
Lower step:
(1) 100 parts of acrylic resins and 25～40 parts of polyolefin elastomers are joined in banbury, at 180～200 DEG C
Under mixing 5～10 minutes, obtain mixing thing, wherein said acrylic resin is isotactic polypropylene, isotactic polypropylene close
Degree is 0.90～0.94g/cm3, melt flow rate (MFR) is 1.7～3.1g/10min, isotacticity ＞ 97%, described polyolefin bullet
Gonosome is ethylene-l-octane copolymer, and the density of ethylene-l-octane copolymer is 0.85～0.88g/cm3, melt flow rate (MFR) is
0.4～0.6g/10min, octene content is 20～30%；
(2) in the mixing thing of step (1), 0.5～1 part of antioxidant, 2～5 parts of fire retardants and 0.5～1 part of processing are added
Auxiliary agent, mixing 5～10 minutes, melting temperature was 180～200 DEG C, obtained the recyclable insulation material for high voltage direct current cable
Material, wherein said antioxidant is antioxidant 1010, antioxidant 2246 or antioxidant 264, and described processing aid is
Tristerin, described fire retardant is magnesium hydroxide, low-hydrate zinc borate, aluminium hydroxide or antimony oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557927.5A CN104292639B (en) | 2014-10-20 | A kind of preparation method of the recyclable insulant for high voltage direct current cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410557927.5A CN104292639B (en) | 2014-10-20 | A kind of preparation method of the recyclable insulant for high voltage direct current cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104292639A CN104292639A (en) | 2015-01-21 |
| CN104292639B true CN104292639B (en) | 2017-01-04 |
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