CN1419247A - Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof - Google Patents
Irradiation cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof Download PDFInfo
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- CN1419247A CN1419247A CN 02116893 CN02116893A CN1419247A CN 1419247 A CN1419247 A CN 1419247A CN 02116893 CN02116893 CN 02116893 CN 02116893 A CN02116893 A CN 02116893A CN 1419247 A CN1419247 A CN 1419247A
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- 238000004132 cross linking Methods 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 23
- 230000009970 fire resistant effect Effects 0.000 title abstract 2
- 239000003063 flame retardant Substances 0.000 claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- -1 polyethylene Polymers 0.000 claims abstract description 14
- 229920000573 polyethylene Polymers 0.000 claims abstract description 14
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000004888 barrier function Effects 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 230000005855 radiation Effects 0.000 claims description 16
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 14
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 229910052736 halogen Inorganic materials 0.000 claims description 10
- 150000002367 halogens Chemical class 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 239000012757 flame retardant agent Substances 0.000 claims description 8
- 239000006078 metal deactivator Substances 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 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 description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 125000002252 acyl group Chemical group 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
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- QVTVDJWJGGEOGX-UHFFFAOYSA-N urea;cyanide Chemical compound N#[C-].NC(N)=O QVTVDJWJGGEOGX-UHFFFAOYSA-N 0.000 claims description 3
- 210000001215 vagina Anatomy 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 4
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- 238000013329 compounding Methods 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000023753 dehiscence Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 229910001679 gibbsite Inorganic materials 0.000 abstract 1
- 230000007794 irritation Effects 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- 235000012254 magnesium hydroxide Nutrition 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000001235 sensitizing effect Effects 0.000 abstract 1
- 235000006708 antioxidants Nutrition 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
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- Organic Insulating Materials (AREA)
Abstract
The present invention relates to a kind of irradiation cross-linked low-smoke haloidless fire-resistant wire cable which is resistant to high temperature, abrasion, dehiscence, aging, combustion and is innoxious and has a long operational life and the mothod thereof, in particular the wire cable which is made by means of electronic irritation and using various compounding materials. The wire cable includes core wire, insulating layer and/or jacket whose compounding material includes polyethylene which is added with low-smoke haloidless fire-retardant Mg(OH)2 or Al(OH)3, carbon black, (0.1-0.5) portion of anti-oxygen, metal depressant and sensitizing agent.
Description
Technical field
The present invention relates to a kind of electric wire and manufacture method thereof, specifically, is with different material prescriptions, makes electric wire in the mode of irradiation.
Background technology
The crosslinked method of cable is divided into two classes, i.e. chemical crosslinking and physical crosslinking.Chemical crosslinking is divided into dry cross-linking and warm water crosslinking again.Dry cross-linking is to reach in 300～400 ℃ the gases at high pressure in temperature to make the sub polyethylene subchain crosslinked through the regular hour.This crosslinked cable is because of adding fire proofing, so be not suitable for making the low-smoke non-halogen flame-retardant cross-linked wire and cable.
Warm water crosslinking is cable to be dipped in 90 ℃ warm bubbly water 5～7 hours, makes the sub polyethylene subchain crosslinked.This cross-linking method also cannot use the polyethylene that adds fire retardant, because of anti-flammability and the electric property that influences cable, so be unsuitable for making the low-smoke non-halogen flame-retardant cross-linked wire and cable.
Physical crosslinking claims cross-linking radiation again.The high-energy electron line that promptly utilizes electron accelerator to launch, bombardment cable insulation or restrictive coating interrupt macromolecular chain, and each point that is interrupted is called free radical.The free radical instability will reconfigure each other, becomes three-dimensional netted molecular structure by original chain molecule structure after reconfiguring and forms crosslinked.This cross-linking method can not influence the anti-flammability and the electric property of cable.
At present, the multiple wire cable of domestic market adopts that polyvinyl chloride is auxilliary to add general additive as insulation or restrictive coating, the temperature resistant grade of electric wire low (about 70 ℃), and its mechanical performance, anti-flammability, weatherability, ageing resistance are bad.The actual motion life-span is short, is being heated, can causing degraded under the situation of Exposure to Sunlight, baked wheaten cake, and producing hydrogen chloride (HCl) gas, to cause personnel to poison dead, therefore, and to the prevention and the processing links weakness of accidents such as fire, overcurrent.Disclose a kind of prescription of irradiation cross-linked overhead cable Chinese patent CN175457 number, when it has only considered to use out of doors, mainly needed high temperature resistant, anti-oxidant and adapt to abominable natural environment.But there is not fire-retardant problem.Still have the dense smoke appearance when running into accident, be unfavorable for the relief of personal safety and fire.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, and the irradiated crosslinking low-smoke and halogen-free flame retardant electric wire and the manufacture method thereof of a kind of heatproof, wear-resisting, anti-cracking, anti-aging, fire-retardant, smokeless, nontoxic, insulation high life is provided.
A kind of material of making low-smoke halogen-free flame-retardant electric wire and cable insulating barrier or sheath is characterized in that comprising following materials in weight portion:
100 parts of polyethylene,
Low-smoke non-halogen flame-retardant agent Mg (OH)
2Or AL
2(OH)
3100-160 part,
Carbon black 2-3 part,
Antioxidant 0.1-0.5 part,
Metal deactivator 0.1-0.5 part,
Sensitizer 1-1.5 part.
The material of this manufacturing low-smoke halogen-free flame-retardant electric wire and cable insulating barrier or sheath, wherein antioxidant is 1010 or 300, and metal deactivator is that two salicylidenes replace the acyl vagina, and sensitizer is a triallyl isonitrile urea acid fat.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention comprises the steps:
1, the coremaking metal is carried out wire drawing;
2, with described wire drawing metal annealing, and strand is made heart yearn;
3, preparation insulating barrier raw material wherein mixes polyethylene, low-smoke non-halogen flame-retardant agent, carbon black, antioxidant, metal deactivator, sensitizer at normal temperatures and stirs with plastic mixer; (need be warmed to 20-30 ℃ winter)
4, the described insulating barrier raw material of having prepared is joined on the extruder, on the described extruder described insulating barrier is being extruded on the surface of described heart yearn;
5, adopt cross-linking radiation technology the electric wire that squeezes good insulating barrier to be carried out irradiation processing with electron accelerator.
6, finished product packing.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention wherein adds in the 5th step of above-mentioned steps:
A, stranding step are twisted into cable core with the described many electric wires that wrapped insulating barrier;
B, extrude sheath at the described multicore cable outer surface of making;
C, employing cross-linking radiation technology are carried out irradiation processing with electron accelerator to the cable that squeezes good sheath.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention, wherein the condition of cross-linking radiation is:
The intensity of electronic beam current is 1～20mA, irradiation dose 6-15Mrad, and electric wire or cable transmission speed are between 8m/min≤400m/min.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention wherein adopts the DD-2.5/50-980 electron accelerator.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention, wherein cabling mode during cross-linking radiation: cable footpath＜Φ 22mm, adopt distortion " ∞ " formula irradiation; Cable footpath 〉=Φ 22mm adopts racetrack or annular irradiation.
The electric wire that adopts said method of the present invention to make comprises single core cable.
The power cable that adopts said method of the present invention to make comprises the multiple core cord that is coated by sheath, fills fire-retardant packing material between cable core.
Advantage of the present invention and good effect are, owing in the polyethylene matrix, add hydroxide, when running into unexpected burning, the hydroxide decomposes absorbs a large amount of heat in the surrounding air, generate metal oxide, can reduce the temperature of combustion site like this, simultaneously, the hydrone that reaction generates also absorbs a large amount of heats, the metal oxide crust that is generated has stoped oxidation and has contacted again with organic.Therefore, can reach low cigarette when burning, even smokeless, nontoxic, fire-retardant effect, guarantee Field Force's safety and helped relief.
Other details of the present invention and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize with reference to accompanying drawing.
Description of drawings
Fig. 1 is the block diagram of the technological process of production of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention;
Fig. 2 is the schematic diagram of a kind of cabling mode of irradiation of the present invention;
Fig. 3 is the end view of Fig. 2;
Fig. 4 is the profile that adopts the made electric wire of irradiance method of the present invention;
Fig. 5 is the profile that adopts the made power cable of irradiance method of the present invention;
Fig. 6 is the profile that adopts the made control cable of irradiance method of the present invention.
Embodiment
A kind of material of making low-smoke halogen-free flame-retardant electric wire and cable insulating barrier or sheath is characterized in that comprising following materials in weight portion:
100 parts of polyethylene (LDPE) add low-smoke non-halogen flame-retardant agent Mg (OH) therein
2Or AL
2(OH)
3100-160 part, carbon black 2-3 part, antioxidant 1010 or 3000.1-0.5 part, metal deactivator, promptly two salicylidenes replace acyl vagina 0.1-0.5 part, sensitizer TALC, i.e. triallyl isonitrile urea acid fat 1-1.5 part.
Example 1
When in 100 parts of polyethylene (LDPE), adding low-smoke non-halogen flame-retardant agent Mg (OH)
2Or AL (OH)
3When 100-160 part and antioxidant 300 0.1-0.5 part, sensitizer 1-1.5 part, the cable so that this insulating barrier or jacket formula are made can be used for the house wire cable.
Example 2
When in 100 parts of polyethylene (LDPE), adding low-smoke non-halogen flame-retardant agent Mg (OH)
2Or AL (OH)
3When 100-160 part and carbon black 2-3 part and antioxidant 300 0.1-0.5 part, the cable so that this insulating barrier or jacket formula are made is used for outdoor aerial cable.
Be the block diagram of the technological process of production of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention as shown in Figure 1, specify manufacture method of the present invention according to Fig. 1, it comprises the steps:
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention comprises the steps:
1. the coremaking metal is carried out wire drawing, wherein said metal can be copper or aluminium;
2. with described wire drawing metal annealing, strand is made heart yearn;
3. preparation insulating barrier raw material wherein mixes polyethylene, low-smoke non-halogen flame-retardant agent, carbon black, antioxidant, metal deactivator, sensitizer with plastic mixer according to described prescription, stirs at normal temperatures 3-5 minute, reaches even;
4. the described insulating barrier raw material of having prepared is joined on the extruder, on the described extruder described insulating barrier is being extruded on the surface of described heart yearn;
5. adopt cross-linking radiation technology electric wire to be carried out irradiation processing with the DD-2.5/50-980 electron accelerator.Irradiation dose is provided by following table 1, and described dosage is decided according to the diameter of cable.
6. to made electric wire finished product packing.
If produce power cable or control cable, need after above-mentioned the 5th step, add following steps.
A. the stranding step is twisted into cable core with the described many electric wires that wrapped insulating barrier;
B. extrude described sheath at the described multicore cable outer surface of making, wherein the extrusion temperature of cable jacket extrusion molding＜175 ℃;
C. adopt cross-linking radiation technology the electric wire that squeezes good insulation to be carried out irradiation processing with electron accelerator.The irradiation processing condition is same as described above.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention wherein requires the cable core ground connection with cable during cross-linking radiation, and the irradiation uniformity will be got well, and the degree of cross linking requires to reach more than 70%, and the condition of different cable footpath irradiation is:
Transmission speed during table 1 cross-linking radiation and irradiation dose
| The cable footpath | Transmission speed | Beam intensity | Irradiation dose |
| ????＜Φ3mm | ??≤400m/min | ????1-20mA | ????6-15Mrad |
| ????Φ3-Φ12mm | ??≤150m/min | ????1-20mA | ????6-15Mrad |
| ????Φ12-Φ15mm | ??8-35m/min | ????1-20mA | ????6-15Mrad |
As Fig. 2, shown in 3, a kind of cabling mode schematic diagram during for the cross-linking radiation of the production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention.Wherein an end of electron accelerator 1 has an electronic scanning box 2, is provided with a transmission device 3 in its respective side, and this transmission device 3 makes the electric wire of institute's transmission on it or the electronics beam end opening that cable can pass through described scanner.Be provided with reflection magnet 6 removing relatively of described scan box 2 electron beam exits wound of bullet.When cable footpath＜Φ 22mm, adopt this distortion " ∞ " formula irradiation; When cable footpath 〉=Φ 22mm, adopt racetrack or annular irradiation (not shown).
Fig. 4-the 6th, the schematic diagram of the electric wire and cable structure of producing with prescription of the present invention and method.As described in Figure 4, be the cutaway view of single core cable, wherein heart yearn 11 is made by copper or aluminium wire drawing, is to coat insulating barrier 12 of the present invention at its outer surface, makes by cross-linking radiation.
Fig. 5 is the power cable that triple core wire is formed, and wherein heart yearn 11 is made by copper or aluminium wire drawing, is to coat insulating barrier 12 of the present invention at its outer surface, makes by cross-linking radiation.Sheath 13 is also formed by prescription of the present invention and method.Between cable core, fill fire-retardant packing material 14.
Fig. 6 is the cutaway view of the control cable made by prescription of the present invention and method, and what it was different with Fig. 5 is the control cable that sheath is coated with many wires.
Table 2 cable insulation and sheath performance comparison table
| Sequence number | Experimental performance and condition | Unit | The irradiated crosslinking low-smoke and halogen-free flame retardant polyethylene | Crosslinked polyethylene |
| ????1 | Temperature resistant grade | ??℃ | ????105℃-135℃ | ??90 |
| ????2 | Tensile strength | ??Mpa | ????＞12.5 | ??10 |
| ? ? ? ? ? ? ????3 | The performance test humid test time draws strong change rate of strength heat to extend permanent deformation after the anti-aging processing | ? ??℃ ? ??H ? ??％ ? ??％ ? ??％ | ? ????158 ? ????168 ? ????＜±25 ? ????＜175 ? ????＜15 | ? ??135 ? ??168 ? ??＜+25 ? ??＜175 ? ??＜15 |
| ? ? ? ? ? ? ????4 | Flammable single straight combustion test bunched burning test (A Lou) the smoke density test of combustibility test light transmittance | ? ? ? ? ? ? ? ? ??％ | Difficult combustion, nonflame, drip is by by＞95 | Inflammable, flame, drip are arranged not by or not |
| ? ????5 | 0.46m is dark in the resistance to wear sanding | 150,000 times | 5000 times |
Claims (8)
1. material of making low-smoke halogen-free flame-retardant electric wire and cable insulating barrier or sheath is characterized in that comprising following materials in weight portion:
100 parts of polyethylene,
Low-smoke non-halogen flame-retardant agent Mg (OH)
2Or Al
2(OH)
3100-160 part,
Carbon black 2-3 part,
Antioxidant 0.1-0.5 part,
Metal deactivator 0.1-0.5 part,
Sensitizer 1-1.5 part.
2. material according to claim 1 is characterized in that antioxidant is 1010 or 300, and metal deactivator is that two salicylidenes replace the acyl vagina, and sensitizer is a triallyl isonitrile urea acid fat.
3. the production method of electric wire according to claim 1 and 2 comprises the steps:
1. the coremaking metal is carried out wire drawing;
2. with described wire drawing metal annealing, strand is made heart yearn;
3. prepare the insulating barrier raw material, wherein mix at normal temperatures and stir with polyethylene, low-smoke non-halogen flame-retardant agent, carbon black, antioxidant, metal deactivator, the sensitizer of plastic mixer with above-mentioned weight portion;
4. the described insulating barrier raw material of having prepared is joined on the extruder, on the described extruder described insulating barrier is being extruded on the surface of described heart yearn;
5. adopt cross-linking radiation technology the electric wire that squeezes good insulating barrier to be carried out electron irradiation processing with electron accelerator.
6. finished product packing.
4. method according to claim 3 wherein also comprises the steps: after the 5th step
1. the stranding step is twisted into cable core with the described many electric wires that wrapped insulating barrier;
2. extrude sheath at the described cable outer surface of making;
3. adopt cross-linking radiation technology the cable that squeezes good sheath to be carried out electron irradiation processing with electron accelerator.
5. according to claim 3 or 4 described methods, wherein the condition of cross-linking radiation is:
The intensity of electronic beam current is 1～20mA, irradiation dose 6-15Mrad, and electric wire or cable transmission speed are between 8m/min～400m/min.
6. method according to claim 5 wherein adopts the DD-2.5/50-980 electron accelerator.
The production method of irradiated crosslinking low-smoke and halogen-free flame retardant electric wire of the present invention, wherein cabling mode during cross-linking radiation: cable footpath＜Φ 22mm, adopt distortion " ∞ " formula irradiation; Cable footpath 〉=Φ 22mm adopts racetrack or annular irradiation.
7. an electric wire made from claim 3～6 method comprises single core cable.
8. a power cable made from claim 4～6 method comprises the multiple core cord that is coated by sheath, fills fire-retardant packing material between cable core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021168938A CN1137495C (en) | 2002-04-24 | 2002-04-24 | Irradiation Cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021168938A CN1137495C (en) | 2002-04-24 | 2002-04-24 | Irradiation Cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1419247A true CN1419247A (en) | 2003-05-21 |
| CN1137495C CN1137495C (en) | 2004-02-04 |
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|---|---|---|---|
| CNB021168938A Expired - Fee Related CN1137495C (en) | 2002-04-24 | 2002-04-24 | Irradiation Cross-linking low-smoke halogen-free fire-resistant wire and cable and making method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100347792C (en) * | 2005-02-24 | 2007-11-07 | 无锡江南电缆有限公司 | Flame-proof power cable for track traffic and process for manufacture |
| CN100348694C (en) * | 2004-05-21 | 2007-11-14 | 中国石油天然气股份有限公司 | Flame-retardant resin composition with positive resistance temperature coefficient |
| CN100351952C (en) * | 2005-09-28 | 2007-11-28 | 江苏宝源电缆料有限公司 | Cross-linked fire-resistant cable material with 125 degree radiation |
| CN100403455C (en) * | 2006-09-11 | 2008-07-16 | 江苏上上电缆集团有限公司 | Cable sheath bond material for power station |
| CN100465220C (en) * | 2007-02-08 | 2009-03-04 | 北京化工大学 | Halogen-free flame-proof cable sheath material |
| CN100487820C (en) * | 2006-12-25 | 2009-05-13 | 金友友 | Low-smoke halogen-free combustion-preventing cable insulation and jacket material for nuclear power plant |
| CN101308714B (en) * | 2007-05-17 | 2010-11-10 | 上海长顺电梯电缆有限公司 | Preparing method of low-smoke non-halogen fire-retarding elevator cable |
| CN102280209A (en) * | 2011-07-25 | 2011-12-14 | 南京大学 | Method for laminated irradiation crosslinking cable of electron beam of high-energy accelerator |
| CN101707085B (en) * | 2009-11-09 | 2011-12-14 | 安徽鑫科新材料股份有限公司 | Method for preparing multicore shielding low-voltage crosslinked cable |
| CN102509576A (en) * | 2011-09-29 | 2012-06-20 | 东华大学 | High-vacuum-resistant high-temperature-resistant wire cable and preparation method thereof |
| CN101853713B (en) * | 2009-04-03 | 2012-07-04 | 上海市高桥电缆厂有限公司 | Flame-retardant filler for cable |
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