CN104356620B - A kind of degradable Electric insulation material - Google Patents
A kind of degradable Electric insulation material Download PDFInfo
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- CN104356620B CN104356620B CN201410660901.3A CN201410660901A CN104356620B CN 104356620 B CN104356620 B CN 104356620B CN 201410660901 A CN201410660901 A CN 201410660901A CN 104356620 B CN104356620 B CN 104356620B
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- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 16
- 150000002367 halogens Chemical class 0.000 claims abstract description 16
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 13
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- 241000894006 Bacteria Species 0.000 claims abstract description 12
- 239000001913 cellulose Substances 0.000 claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims abstract description 12
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 claims abstract description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 9
- 229920002472 Starch Polymers 0.000 claims abstract description 9
- 150000002170 ethers Chemical class 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 229920001432 poly(L-lactide) Polymers 0.000 claims abstract description 9
- 239000004417 polycarbonate Substances 0.000 claims abstract description 9
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 9
- 239000008107 starch Substances 0.000 claims abstract description 9
- 235000019698 starch Nutrition 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 239000012467 final product Substances 0.000 claims abstract description 7
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- 239000000047 product Substances 0.000 claims description 7
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- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical group BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 3
- 229920002681 hypalon Polymers 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 25
- -1 24 parts Polymers 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
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- 238000011056 performance test Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
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- 239000008103 glucose Substances 0.000 description 1
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- 239000003209 petroleum derivative Substances 0.000 description 1
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Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a kind of degradable Electric insulation material, raw material by following portions by weight: PLLA 50 ~ 60, bacteria cellulose 30 ~ 40, crosslinked polyethylene 10 ~ 20, Halogen type fire retardant material 20 ~ 30, halogen containing flame-retardant 5 ~ 10, TDE 5 ~ 20, Natvosol 5 ~ 15, glass fibre 20 ~ 30, starch ethers 10 ~ 20, polycarbonate 20 ~ 30, polyvinyl alcohol 10 ~ 15, ethylene-propylene rubber(EPR) 20 ~ 25, silane coupling agent 5 ~ 10 adds in whizzer, after being uniformly mixed, enter twin screw extruder and be squeezed into molten state, temperature controls at 180 ~ 200 DEG C, by injector, molten mass is injected mould fast, by cutting machine trimming and get final product in secondary mould.Electric power material prepared by the present invention possesses excellent mechanical property, cold and hot stability and flame retardant properties, possesses biodegradability simultaneously, is expected to become new insulation material and is widely used.
Description
Technical field
The invention belongs to insulating material technical field, particularly the degradable Electric insulation material of one.
Background technology
Power cable is generally laid in below earth's surface, be commonly used for power plant, electric substation, industrial enterprise power introduce or outlet line.Power cable is compared with pole line, because it is laid on below earth's surface, so the impact of climate is less, safe and reliable, hidden durable, but material cost, lay expense, maintenance cost is higher, and maintenance and malfunction elimination also more difficult.Low-voltage network, device for electric line cable often adopt the plastic peel electric wire with polyvinyl chloride sheath as delivery of electrical energy line, and under these electric wires are generally embedded in body of wall or earth's surface by poling, the mode of surface of also can sampling is laid.The spark that the defective insulation of electric wire produces often easily causes place's fire such as factory building, house, public place, causes casualties and property damage.
The insulating material of power equipment roughly can be divided into solid, liquid, gas three major types.Distinct device, the power equipment of different voltage range and differing capacities should select different insulating material, to meet insulating requirements.The power cable that general voltage range is higher often adopts the crosslinked polyethylene (XLPE) of extrusion moulding, polyvinyl chloride (PVC), ethylene-propylene rubber(EPR), the solid insulating materials such as polyolefins, and novel LSZH insulating material is also in constantly releasing.In addition, a small amount of cable is also had to adopt oil-paper as dielectric.The lower electric wire of voltage range is generally using polyvinyl chloride, natural styrene-butadiene rubber(SBR), ethylene-vinyl acetate rubber etc. as dielectric.Wherein, XLPE as power cable insulating material because of its excellent performance applications more and more extensive.Further, manufacturing process has developed into present " dry cross-linking " from initial " wet method is cross-linked ", and the performance of XLPE cable obtains further raising.
The insulating material of electric wire in use, or is discarded, and the chemical substance of its material composition, all likely endangers the life and health of physical environment and the mankind.Organic solvent containing heterogeneity in insulating material, this solvent has the volatile possibility of chemical composition, is the fatal hard defects of topsoil.Electric wire, to containing the requirement of organic compound insulating material, has restricted index, some
Country, also by the formulation of the related legal provision, limits or forbids the application of this insulating material.Insulating material misapplication, also likely causes Greenhouse effect, damages the ozone layer, forms acid rain etc.Electric wire application insulating material, the stability of material chemical composition should be considered, the for example consumption of control PFC and HFC material, and reclaim the insulating material with environmental pollution impact, it is effective way that current electric wire produces to insulating material application, to bury and to burn, the method of burying takies a large amount of soil, the waste that cannot dissolve causes soil deterioration, form persistency organic contaminant, once enter biological cycle, harm humans is healthy, and such as HCl, CO, SO that burning method produces
2cause secondary environmental pollution Deng obnoxious flavour, worsen environment for human survival further.
Authorization Notice No. be CN101423654 patent discloses a kind of degradable cable plastic insulation and sheath material, while this material realizes degraded, its electric property and mechanical property also reduce.In view of wire cable insulating material exists the material of contaminative and hazardness, must do from source, namely need on the basis considering good electric, the mechanical property of insulating material, development environment friendly insulating material.
Summary of the invention
The object of the invention is to there is the harm such as environmental pollution for existing cable special isolation material and a kind of degradable insulating material is provided, ensureing the low temperature cold tolerance that cable insulation is good, high temperature resistant, corrosion-resistant, good, on the basis of good flame retardant resistance, possesses biodegradability.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of degradable Electric insulation material, it is made up of the raw material of following portions by weight: PLLA 50 ~ 60 parts, crosslinked polyethylene 10 ~ 20 parts, Halogen type fire retardant material 20 ~ 30 parts, halogen containing flame-retardant 5 ~ 10 parts, TDE 5 ~ 20 parts, Natvosol 5 ~ 15 parts, 20 ~ 30 parts, glass fibre, starch ethers 10 ~ 20 parts, polycarbonate 20 ~ 30 parts, polyvinyl alcohol 10 ~ 15 parts, 20 ~ 25 parts, ethylene-propylene rubber(EPR), bacteria cellulose 10 ~ 15 parts, silane coupling agent 5 ~ 10 parts.
As the preferred technical solution of the present invention, a kind of degradable Electric insulation material, it is made up of the raw material of following portions by weight: PLLA 55 parts, crosslinked polyethylene 15 parts, Halogen type fire retardant material 25 parts, halogen containing flame-retardant 5 parts, TDE 10, Natvosol 8 parts, 22 parts, glass fibre, starch ethers 18 parts, polycarbonate 25 parts, polyvinyl alcohol 12 parts, 24 parts, ethylene-propylene rubber(EPR), 24 parts, ethylene-propylene rubber(EPR), bacteria cellulose 15 parts, silane coupling agent 10 parts.
Described Halogen type fire retardant material is polyvinyl chloride, tetrafluoroethylene, chlorosulfonated polyethylene or chloroprene rubber.
Described halogen containing flame-retardant is decabromodiphenyl oxide or clorafin.
The length of described mestha bacteria cellulose is 1 ~ 2mm.
A kind of preparation method of degradable Electric insulation material, above-mentioned each raw material is taken according to weight part, each raw material is added in whizzer successively, stirs 5 ~ 8 minutes under the condition of 850 ~ 1000r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls, at 180 ~ 200 DEG C, then by injector, molten mass to be injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
Beneficial effect of the present invention: (1) lactic acid (PLA) can utilize the glucose in plant to synthesize, raw materials cost is low, be convenient to after using recycle, can be used for again producing, and the decomposition of this material can not cause any adverse influence to environment, can produce from renewable resource, not use petroleum products, have raw material endlessly; There is the mechanical property as suitable in polyethylene, polypropylene etc. with petrochemical polymer, changing its essential property by controlling some factors (as degree of crystallinity); Stability under conventional environment and microorganism deposit degradable property at ambient, and degraded product (lactic acid and oligopolymer thereof) can not cause any impact to environment and human body.(2) bacteria cellulose and the composite use of poly(lactic acid), can significantly improve thermotolerance and the intensity of insulating material, and the electric property of the insulating material taking poly(lactic acid) as matrix and mechanical property are greatly improved.(3) Halogen type fire retardant material and halogen containing flame-retardant conbined usage make the flame retardant properties of insulating material improve 50 ~ 60% by the present invention.(4) good synergy is possessed between each material component of electric power material that prepared by the present invention, possess superior isolation performance, higher mechanical property and possess excellent cold and hot stability and flame retardant properties, possesses biodegradability simultaneously, for the insulating material of polymer waste solving petrochemical industry synthesis provides a kind of solution route to the severe contamination that environment causes, be expected to become new insulation material and be widely used.
Embodiment
Embodiment 1
A kind of degradable Electric insulation material, it is made up of following raw material: PLLA 55Kg, bacteria cellulose (length is 1mm) 30Kg, crosslinked polyethylene 15Kg, polyvinyl chloride 25Kg, decabromodiphenyl oxide 5Kg, TDE 10, Natvosol 8Kg, glass fibre 22Kg, starch ethers 18Kg, polycarbonate 25Kg, polyvinyl alcohol 12Kg, ethylene-propylene rubber(EPR) 24Kg, ethylene-propylene rubber(EPR) 24Kg, silane coupling agent 10Kg.
Above-mentioned each raw material is taken according to weight Kg, each raw material is added in whizzer successively, point stirring 8 minutes under the condition of 850r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls at 200 DEG C, then by injector, molten mass is injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
Embodiment 2
The degradable Electric insulation material of the present embodiment, it is made up of following raw material: PLLA 50Kg, bacteria cellulose (length is 2mm) 30Kg, crosslinked polyethylene 10Kg, tetrafluoroethylene 20Kg, clorafin 5Kg, TDE 5, Natvosol 5Kg, glass fibre 20Kg, starch ethers 10Kg, polycarbonate 20Kg, polyvinyl alcohol 10Kg, ethylene-propylene rubber(EPR) 20Kg, silane coupling agent 5Kg.
The preparation method of the degradable Electric insulation material of the present embodiment, it is characterized in that: take above-mentioned each raw material according to weight Kg, each raw material is added in whizzer successively, stirs 5 minutes under the condition of 1000r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls, at 180 DEG C, then by injector, molten mass to be injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
Embodiment 3
The degradable Electric insulation material of the present embodiment, it is made up of following raw material: PLLA 60Kg, bacteria cellulose 40Kg, crosslinked polyethylene 20Kg, chlorosulfonated polyethylene 30Kg, clorafin 10Kg, TDE 20, Natvosol 15Kg, glass fibre 30Kg, starch ethers 20Kg, polycarbonate 30Kg, polyvinyl alcohol 15Kg, ethylene-propylene rubber(EPR) 25Kg, silane coupling agent 10Kg.
The preparation method of the degradable Electric insulation material of the present embodiment, it is characterized in that: take above-mentioned each raw material according to weight Kg, each raw material is added in whizzer successively, stirs 6 minutes under the condition of 900r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls, at 185 DEG C, then by injector, molten mass to be injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
Embodiment 4
The degradable Electric insulation material of the present embodiment, it is made up of following raw material: PLLA 58Kg, bacteria cellulose 36Kg, crosslinked polyethylene 18Kg, chloroprene rubber 24Kg, clorafin 8Kg, TDE 15Kg, Natvosol 12Kg, glass fibre 25Kg, starch ethers 16Kg, polycarbonate 24Kg, polyvinyl alcohol 13Kg, ethylene-propylene rubber(EPR) 22Kg, silane coupling agent 9Kg.
The preparation method of the degradable Electric insulation material of the present embodiment, it is characterized in that: take above-mentioned each raw material according to weight Kg, each raw material is added in whizzer successively, stirs 7 minutes under the condition of 950r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls, at 190 DEG C, then by injector, molten mass to be injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
The performance test results of the insulating material that above-mentioned 1 ~ 4 embodiment obtains is as shown in the table.
The performance test results
As seen from the above table, the degradation rate of insulating material can reach 80%, Schwellenwert is 72% standard meeting ISO14855, and insulating material also has the mechanical propertys such as excellent tensile strength, flexural strength and notched Izod impact strength and the electric property such as good flame retardant resistance and larger volume resistance simultaneously.
Claims (4)
1. a degradable Electric insulation material, it is characterized in that: it is made up of the raw material of following portions by weight: PLLA 50 ~ 60 parts, bacteria cellulose 30 ~ 40 parts, crosslinked polyethylene 10 ~ 20 parts, Halogen type fire retardant material 20 ~ 30 parts, halogen containing flame-retardant 5 ~ 10 parts, TDE 5 ~ 20 parts, Natvosol 5 ~ 15 parts, 20 ~ 30 parts, glass fibre, starch ethers 10 ~ 20 parts, polycarbonate 20 ~ 30 parts, polyvinyl alcohol 10 ~ 15 parts, 20 ~ 25 parts, ethylene-propylene rubber(EPR), silane coupling agent 5 ~ 10 parts; Described Halogen type fire retardant material is polyvinyl chloride, tetrafluoroethylene, chlorosulfonated polyethylene or chloroprene rubber; Described halogen containing flame-retardant is decabromodiphenyl oxide or clorafin.
2. degradable Electric insulation material according to claim 1, it is characterized in that: it is made up of the raw material of following portions by weight: PLLA 55 parts, bacteria cellulose 30 parts, crosslinked polyethylene 15 parts, Halogen type fire retardant material 25 parts, halogen containing flame-retardant 5 parts, TDE 10, Natvosol 8 parts, 22 parts, glass fibre, starch ethers 18 parts, polycarbonate 25 parts, polyvinyl alcohol 12 parts, 24 parts, ethylene-propylene rubber(EPR), silane coupling agent 10 parts.
3. degradable Electric insulation material according to claim 1, is characterized in that: the length of described bacteria cellulose is 1 ~ 2mm.
4. according to the preparation method of the degradable Electric insulation material in claim 1 ~ 3 described in any one, it is characterized in that: take above-mentioned each raw material according to weight part, each raw material is added in whizzer successively, stir 5 ~ 8 minutes under the condition of 850 ~ 1000r/min, after mixing, enter twin screw extruder and be squeezed into molten state, temperature controls at 180 ~ 200 DEG C, then by injector, molten mass is injected mould fast, mould matched moulds cooling and shaping, after die sinking, finished product enters secondary mould, by cutting machine trimming and get final product in secondary mould.
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| CN201410660901.3A CN104356620B (en) | 2014-11-19 | 2014-11-19 | A kind of degradable Electric insulation material |
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| CN201410660901.3A CN104356620B (en) | 2014-11-19 | 2014-11-19 | A kind of degradable Electric insulation material |
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| CN104356620B true CN104356620B (en) | 2016-04-06 |
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| EP2198434A1 (en) * | 2007-10-08 | 2010-06-23 | ABB Research Ltd. | Surface modified electrical insulation system with improved tracking and erosion resistance |
| CN103890256A (en) * | 2011-08-26 | 2014-06-25 | 纳幕尔杜邦公司 | Insulating material comprising nonwoven webs |
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2014
- 2014-11-19 CN CN201410660901.3A patent/CN104356620B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990013901A1 (en) * | 1989-05-10 | 1990-11-15 | Raychem Corporation | Apparatus and method for the reduction of polyolefin insulation cracking of cables |
| EP2198434A1 (en) * | 2007-10-08 | 2010-06-23 | ABB Research Ltd. | Surface modified electrical insulation system with improved tracking and erosion resistance |
| CN101423654A (en) * | 2008-12-01 | 2009-05-06 | 江苏中超电缆股份有限公司 | Degradable plastic insulation and sheath material for cable and cable |
| CN103890256A (en) * | 2011-08-26 | 2014-06-25 | 纳幕尔杜邦公司 | Insulating material comprising nonwoven webs |
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