CN103474163B - Naval vessel petrochemical industry 5000 to 15000 volt jumper cable and manufacture methods thereof - Google Patents
Naval vessel petrochemical industry 5000 to 15000 volt jumper cable and manufacture methods thereof Download PDFInfo
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- CN103474163B CN103474163B CN201310418182.XA CN201310418182A CN103474163B CN 103474163 B CN103474163 B CN 103474163B CN 201310418182 A CN201310418182 A CN 201310418182A CN 103474163 B CN103474163 B CN 103474163B
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Abstract
The present invention relates to a kind of naval vessel petrochemical industry 5000 to 15000 volt jumper cable and manufacture methods thereof, at the periphery coating conductor screen of twisted copper conductors, then evenly extrude ethylene propylene rubber insulated layer in the periphery of conductor shield, extrude high thermal resistivity chemical crosslinking polyolefin oversheath in ethylene propylene rubber insulated layer periphery.The raw material weight content of oversheath is as follows, LEVAPREN 500HV rubber 10 parts; Ethylene propylene diene rubber 4045M:10 part; BIPB:0.6 ~ 1 part; TAC:0.2 ~ 0.4 part; A-172:0.2 ~ 0.5 part; Stearic acid: 0.5 ~ 1 part; Aluminium hydroxide: 30 ~ 35 parts; Fume colloidal silica: 6 ~ 10 parts; N550 carbon black: 0.6 ~ 1 part; Tissuemat E: 1.5 ~ 2.5 parts; DDA:0.2 ~ 0.4 part; Firebrake ZB: 2 ~ 5 parts.This cable takes up room little, lightweight, and the temperature rise on cable cover(ing) surface is low, and ampacity is large.
Description
Technical field
The present invention relates to a kind of jumper cable, particularly a kind of naval vessel petrochemical industry 5000 to 15000 volt jumper cables.The invention still further relates to the manufacture method of a kind of naval vessel petrochemical industry with 5000 to 15000 volt jumper cables.
Background technology
Along with country strengthens attention to offshore oil energy exploitation and application, large quantities of new ships and landification equipment built.Naval vessel and landification equipment are all furnished with emergency electric power facility or mobile power station except normal electric equipment, so that for subsequent use under special circumstances.Now need by jumper cable, terminate load to be connected rapidly with mobile power station, thus require that jumper cable must possess lightweight, that ampacity is large, surface temperature rise is little performance.
The load of weight on boats and ships of cable has very large impact, and the weight of cable and cross-sectional area of conductor amass relevant, cross-sectional area of conductor is long-pending then mainly to be determined by ampacity, and the factor affecting ampacity is except conductor material and sectional area, also has insulation used, sheath material and the construction of cable etc.Because shipboard cable conductor is twisted copper conductors, therefore shipboard cable ampacity is mainly determined by insulation, sheath material and the construction of cable
Prior art is mainly passed through to improve the operating temperature ratings of insulation and sheath material thus the ampacity of raising cable, but the less surface temperature of cable that makes of the thermal resistivity due to current material is very high, 110 DEG C can be reached, and cable dispels the heat not smooth in narrow and small boats and ships space, ambient temperature is caused to raise, from and more can reduce the ampacity of cable, and the safety of impact around other facilities, cause vicious circle.The thermal resistivity of existing low smoke and zero halogen sheath material is 3.5 Km/W, is not enough to reduce cable surface temperature rise.Simultaneously according to the relation of power, voltage and current, when power is certain, improves voltage and just can reduce electric current, reduce caloric value.By reducing the method for cable surface temperature rise, also can improve conductor ampacity, alleviating the weight of cable.
Summary of the invention
Primary and foremost purpose of the present invention is, overcomes problems of the prior art, and provide a kind of naval vessel petrochemical industry 5000 to 15000 volt jumper cables, oversheath thermal resistivity is high, when cross-sectional area of conductor amasss identical, can improve ampacity.
For realizing above object, a kind of naval vessel provided by the present invention petrochemical industry 5000 to 15000 volt jumper cables, the periphery of twisted copper conductors is coated with conductor shield, the periphery of conductor shield is evenly extruded with ethylene propylene rubber insulated layer, and the periphery of ethylene propylene rubber insulated layer is extruded with high thermal resistivity chemical crosslinking polyolefin oversheath.
Relative to prior art, the present invention achieves following beneficial effect: what the outer wall due to cable core adopted is high thermal resistivity chemical crosslinking polyolefin oversheath, can reduce the temperature of cable outer wall, when cross-sectional area of conductor amasss identical, can improve ampacity.
As preferred version of the present invention, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 ~ 1 part; Triallyl cyanurate: 0.2 ~ 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 ~ 0.5 part; Stearic acid: 0.5 ~ 1 part; Aluminium hydroxide: 30 ~ 35 parts; Fume colloidal silica: 6 ~ 10 parts; N550 carbon black: 0.6 ~ 1 part; Tissuemat E: 1.5 ~ 2.5 parts; Alkylated diphenylamine: 0.2 ~ 0.4 part; Firebrake ZB: 2 ~ 5 parts.This sheath obtains following beneficial effect: (1) LEVAPREN 500HV rubber is along with the increase of wherein vinyl acetate content, the crosslinkable degree of sizing material, oil resistance, elongation at break can significantly increase, but when vinyl acetate content is greater than 55%, the heat-resisting quantity of LEVAPREN 500HV rubber and elasticity can decline, and affect flexibility; The present invention is based on vulcanized rubber need to possess the high current-carrying capacity of high temperature resistant guarantee cable and select LEVAPREN 500HV rubber; The molecular structure of LEVAPREN 500HV rubber is saturated methine main chain simultaneously, and containing polarity side base, nonpolar methin groups and suitable activity, there is high flame retardant, heat-proof aging, oil resistance, and vulcanization crosslinking can be carried out by cheap peroxide, but the price of LEVAPREN 500HV rubber is higher.(2) ethylene propylene diene rubber 4045M belongs to saturated copolymer, and not containing unsaturated double-bond, available peroxide cure, has excellent resistance to ozone aging, heat-resisting weather-resistant property, process industrial art performance, cheap, but oil resistance and poor adhesion.Adopt second Warburg Pincus rubber LEVAPREN 500HV and ethylene propylene diene rubber 4045M to share the overall performance that can play the two respective advantage, improve sizing material, reduce costs.(3) adopt aluminium hydroxide (i.e. hydrated alumina) as fire retardant; it contains 3 hydrones; start to decompose at 250 DEG C; discharge hydrone and absorb heat and reduce environment temperature; the steam discharged serves again the effect of combustable gas concentration in dilution gas phase, and the alundum (Al2O3) of generation and the carbide on burning polymer surface combine, and form diaphragm; cut off the intrusion of heat energy and oxygen, serve fire retardation.Hydrated alumina has low cigarette and reduces the effect of carbon monoxide generation, environment-protecting clean simultaneously.(4) namely Firebrake ZB sells fumicants as the synergistic fire retardant of aluminium hydroxide, not only can discharge the crystallization water and absorb large calorimetric after being heated, and limiting material temperature rises, reduce jacket surface temperature, can also boron chloride be formed, zinc chloride covers material surface, play heat insulation, oxygen barrier, prevent flue gas from overflowing.(5) adopt dual-tert-butyl peroxy isopropyl base benzene and vulcanizing agent BIPB to replace traditional DCP to have obvious advantage: DCP produces niff when crosslinked, and stays in goods; BIPB is without this shortcoming; BIPB temperature resistant grade is high, can carry out mixing at high 10 DEG C than DCP; BIPB contains two peroxide bridges, and active o content is high, amount ratio DCP few 30%; BIPB volatility is low simultaneously, can avoid the bubble caused by methane; But BIPB decomposes in rubber composition produces free radical, cause cross-linking reaction, also there is the cut-out of propylene chain link in rubber backbone simultaneously, the thermal endurance of vulcanized rubber can be improved, improve compression, reduce brittle temperature, improve low temperature and deflect performance, but BIPB is when vulcanized rubber, the ionic decomposition occurred can reduce the utilization ratio of BIPB, and crosslink density is low, bad mechanical property, and aging is poor; (6) adopt triallyl cyanurate and TAC as co-curing agent, utilize the unsaturated active group that TAC co-curing agent exists, the radical reaction that rapid and BIPB decomposites, form constitutionally stable new free radical, and continue to participate in cross-linking reaction, thus improve utilance and the cross-linking efficiency of BIPB, improve the curingprocess rate of sizing material, crosslink density and hot strength, ensure the combination property of vulcanizate.Alkylated diphenylamine and antioxidant D DA high effect nontoxic, volatility little, have special protective action and antifatigue effect to aging caused by heat, light, ozone, especially be outstanding to the anti-aging effect of the rubber requiring to use under the high temperature conditions and antifatigue effect, and with second Warburg Pincus rubber LEVAPREN 500HV and ethylene propylene diene rubber 4045M with there is good describing property.(8) stearic acid can play the double action of activating agent and lubricant as lubricant, makes vulcanizing agent metal oxide have larger activity, better to the dispersiveness of carbon black N550 in sizing material, has the effect of release agent simultaneously, is beneficial to sizing material and mould adhesion; Also the process industrial art performance of Insulation Material can be improved, improve processing speed, the quality of sizing material can be improved simultaneously, prevent sizing material from adding the adhesion on man-hour and equipment and other contact material surfaces, sizing material in the course of processing is had good in roller and release property, ensure sizing material any surface finish, reduce kinematic viscosity when sizing material internal friction and melting, prevent from causing because of internal friction sizing material to cross thermal impact serviceability.(9) N550 carbon black can improve the ultraviolet-resistant aging performance of sizing material as colouring agent, has strengthening action to sizing material simultaneously.(10) fume colloidal silica is as reinforcing agent, for the cotton-shaped translucent solid colloidal nano particle of white-amorphous, by the halide nanoscale white powder that pyrohydrolysis generates in oxyhydrogen flame of silicon, particle diameter is little, and specific area is large, sizing material can be made to have higher mechanical strength, processing performance is good, and hot strength is high, but the impact of fume colloidal silica particle surface group acidity, sulfuration can be postponed, large, the mixing easy roll banding of sizing material viscosity.Due to the Mooney viscosity of LEVAPREN 500HV low, mixing time easy roll banding, add vinyl three ('beta '-methoxy ethyoxyl) silane and coupling agent A-172 and plasticizer Tissuemat E, improve processing technology.Coupling agent A-172 is undersaturated silane, it can coupling spontaneous with fume colloidal silica, the viscosity of remarkable reduction inserts granularity and sizing material, improve on the one hand the wettability of rubber and reinforcing agent, filler, rubber one filler key is formed by unsaturated bond on the other hand in sulfidation, play and increase curingprocess rate, the tensile strength strengthening vulcanizate and water-resistant stability, eliminate the effect of high temperature vulcanized generation pore.Tissuemat E viscosity is low, and softening point is high, nontoxic, Heat stability is good, the large high-temperature volatile of molecular weight is low, and chemical-resistant resistance ability is strong, and electrical property is excellent, and the outward appearance can improving finished product can the diffusion of reinforcing filler, improve extrusion modling speed, increase mould flow, the demoulding is convenient.Tensile strength before high thermal resistivity chemical crosslinking polyolefin oversheath of the present invention is aging can reach 11 more than N/mm2, and elongation at break can reach more than 190%; Tensile strength retention rate after air-oven is aging can reach more than 61%, and reserved elongation at break can reach more than 62%; Under degree of cross linking test load, percentage elongation can reach less than 18%; Thermal resistivity can reach more than 6.1Km/W; Acid gas content, content of halogen, poison exponent, smoke index etc. are all better than standard-required.
As preferred version of the present invention, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 part; Triallyl cyanurate: 0.2 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 part; Stearic acid: 0.5 part; Aluminium hydroxide: 30 parts; Fume colloidal silica: 6 parts; N550 carbon black: 0.6 part; Tissuemat E: 1.5 parts; Alkylated diphenylamine: 0.2 part; Firebrake ZB: 2 parts.
As preferred version of the present invention, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.8 part; Triallyl cyanurate: 0.8 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.3 part; Stearic acid: 0.8 part; Aluminium hydroxide: 32 parts; Fume colloidal silica: 8 parts; N550 carbon black: 0.8 part; Tissuemat E: 2.0 parts; Alkylated diphenylamine: 0.3 part; Firebrake ZB: 4 parts.
As preferred version of the present invention, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 1 part; Triallyl cyanurate: 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.5 part; Stearic acid: 1 part; Aluminium hydroxide: 35 parts; Fume colloidal silica: 10 parts; N550 carbon black: 1 part; Tissuemat E: 2.5 parts; Alkylated diphenylamine: 0.4 part; Firebrake ZB: 5 parts.
Another object of the present invention is, provide a kind of naval vessel petrochemical industry manufacture method of 5000 to 15000 volt jumper cables, the cable of the method manufacture, oversheath thermal resistivity is high, when cross-sectional area of conductor amasss identical, can improve ampacity.
For realizing above object, the naval vessel provided by the present invention petrochemical industry manufacture method of 5000 to 15000 volt jumper cables, comprise the following steps successively: at the periphery coating conductor screen of twisted copper conductors, then evenly extrude ethylene propylene rubber insulated layer in the periphery of conductor shield, then extrude high thermal resistivity chemical crosslinking polyolefin oversheath in the periphery of ethylene propylene rubber insulated layer.
Relative to prior art, the beneficial effect that the present invention obtains is described above.
As preferred version of the present invention, the preparation method of described high thermal resistivity chemical crosslinking polyolefin oversheath is as follows: (1) prepares raw material, LEVAPREN 500HV rubber: 10 parts by following component and weight content; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 ~ 1 part; Triallyl cyanurate: 0.2 ~ 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 ~ 0.5 part; Stearic acid: 0.5 ~ 1 part; Aluminium hydroxide: 30 ~ 35 parts; Fume colloidal silica: 6 ~ 10 parts; N550 carbon black: 0.6 ~ 1 part; Tissuemat E: 1.5 ~ 2.5 parts; Alkylated diphenylamine: 0.2 ~ 0.4 part; Firebrake ZB: 2 ~ 5 parts; (2) first vinyl three ('beta '-methoxy ethyoxyl) silane, stearic acid, aluminium hydroxide, fume colloidal silica, N550 carbon black, Tissuemat E, alkylated diphenylamine and Firebrake ZB are dropped into banbury, at 20 DEG C ~ 30 DEG C mixing 9 ~ 10 minutes, then banbury temperature is risen to 110 DEG C ~ 120 DEG C, add LEVAPREN 500HV rubber and ethylene propylene diene rubber 4045M to continue mixing 15 ~ 18 minutes, then elastomeric compound is moved to mill and carry out compressing tablet, cooling 24 ~ 36 hours; Then banbury temperature is controlled at 100 ~ 110 DEG C; above-mentioned sizing material is dropped into banbury; and add dual-tert-butyl peroxy isopropyl base benzene and mixing 3 ~ 4 minutes of triallyl cyanurate; again elastomeric compound is moved to mill and play triangle bag or clot 7 ~ 8 times; then compressing tablet, cooling, on singe screw comminutor, granulation is for subsequent use.
As preferred version of the present invention, described high thermal resistivity chemical crosslinking polyolefin oversheath adopts cold feeding manner to extrude from double screw extruder, the draw ratio of screw rod is (15 ~ 20): 1, body temperature when extruding is 115 ± 5 DEG C, head temperature is 120 ± 5 DEG C, the cooled screw mode of rubber extruding machine adopts water cooling, is cross-linked after extruding at 160 ~ 180 DEG C.
Accompanying drawing explanation
Fig. 1 is the structural representation of naval vessel of the present invention petrochemical industry with 5000 to 15000 volt jumper cables.
In figure: 1. twisted copper conductors; 2. conductor shield; 3. ethylene propylene rubber insulated layer; 4. high thermal resistivity chemical crosslinking polyolefin oversheath.
Embodiment
Embodiment one
As shown in Figure 1, naval vessel of the present invention petrochemical industry 5000 to 15000 volt jumper cables, manufacture method comprises the following steps successively: be coated with conductor shield 2 in the periphery of twisted copper conductors 1, the periphery of conductor shield 2 is evenly extruded with ethylene propylene rubber insulated layer 3, is extruded with high thermal resistivity chemical crosslinking polyolefin oversheath 4 in the periphery of ethylene propylene rubber insulated layer 3.Twisted copper conductors 1 forms for the 5th class soft structure tinned conductor that meets IEC 60228-2004 standard is stranded, and ethylene propylene rubber insulated layer 3 adopts the ethylene-propylene rubber met in IEC 60092-351 standard.
Wherein, the preparation method of described high thermal resistivity chemical crosslinking polyolefin oversheath is as follows: (1) prepares raw material, LEVAPREN 500HV rubber: 10 parts by following component and weight content; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 part; Triallyl cyanurate: 0.2 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 part; Stearic acid: 0.5 part; Aluminium hydroxide: 30 parts; Fume colloidal silica: 6 parts; N550 carbon black: 0.6 part; Tissuemat E: 1.5 parts; Alkylated diphenylamine: 0.2 part; Firebrake ZB: 2 parts; (2) first vinyl three ('beta '-methoxy ethyoxyl) silane, stearic acid, aluminium hydroxide, fume colloidal silica, N550 carbon black, Tissuemat E, alkylated diphenylamine and Firebrake ZB are dropped into banbury, at 20 DEG C mixing 9 minutes, then banbury temperature is risen to 110 DEG C, add LEVAPREN 500HV rubber and ethylene propylene diene rubber 4045M to continue mixing 15 minutes, then elastomeric compound is moved to mill and carry out compressing tablet, cooling 24 hours; Then banbury temperature is controlled at 100 DEG C; above-mentioned sizing material is dropped into banbury; and add dual-tert-butyl peroxy isopropyl base benzene and mixing 3 minutes of triallyl cyanurate; again elastomeric compound is moved to mill and play triangle bag or clot 7 times; then compressing tablet, cooling, on singe screw comminutor, granulation is for subsequent use.
Described high thermal resistivity chemical crosslinking polyolefin oversheath adopts cold feeding manner to extrude from double screw extruder, the draw ratio of screw rod is 15:1, body temperature when extruding is 110 DEG C, head temperature is 115 DEG C, the cooled screw mode of rubber extruding machine adopts water cooling, is cross-linked after extruding at 160 DEG C.
Embodiment two
As shown in Figure 1, naval vessel of the present invention petrochemical industry 5000 to 15000 volt jumper cables, manufacture method comprises the following steps successively: be coated with conductor shield 2 in the periphery of twisted copper conductors 1, the periphery of conductor shield 2 is evenly extruded with ethylene propylene rubber insulated layer 3, is extruded with high thermal resistivity chemical crosslinking polyolefin oversheath 4 in the periphery of ethylene propylene rubber insulated layer 3.Twisted copper conductors 1 forms for the 5th class soft structure tinned conductor that meets IEC 60228-2004 standard is stranded, and ethylene propylene rubber insulated layer 3 adopts the ethylene-propylene rubber met in IEC 60092-351 standard.
Wherein, the preparation method of described high thermal resistivity chemical crosslinking polyolefin oversheath is as follows: (1) prepares raw material, LEVAPREN 500HV rubber: 10 parts by following component and weight content; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.8 part; Triallyl cyanurate: 0.8 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.3 part; Stearic acid: 0.8 part; Aluminium hydroxide: 32 parts; Fume colloidal silica: 8 parts; N550 carbon black: 0.8 part; Tissuemat E: 2.0 parts; Alkylated diphenylamine: 0.3 part; Firebrake ZB: 4 parts; (2) first vinyl three ('beta '-methoxy ethyoxyl) silane, stearic acid, aluminium hydroxide, fume colloidal silica, N550 carbon black, Tissuemat E, alkylated diphenylamine and Firebrake ZB are dropped into banbury, at 25 DEG C mixing 10 minutes, then banbury temperature is risen to 115 DEG C, add LEVAPREN 500HV rubber and ethylene propylene diene rubber 4045M to continue mixing 16 minutes, then elastomeric compound is moved to mill and carry out compressing tablet, cooling 30 hours; Then banbury temperature is controlled at 105 DEG C; above-mentioned sizing material is dropped into banbury; and add dual-tert-butyl peroxy isopropyl base benzene and mixing 3.5 minutes of triallyl cyanurate; again elastomeric compound is moved to mill and play triangle bag or clot 8 times; then compressing tablet, cooling, on singe screw comminutor, granulation is for subsequent use.
Described high thermal resistivity chemical crosslinking polyolefin oversheath adopts cold feeding manner to extrude from double screw extruder, the draw ratio of screw rod is 18:1, body temperature when extruding is 115 DEG C, head temperature is 120 DEG C, the cooled screw mode of rubber extruding machine adopts water cooling, is cross-linked after extruding at 170 DEG C.
Embodiment three
As shown in Figure 1, naval vessel of the present invention petrochemical industry 5000 to 15000 volt jumper cables, manufacture method comprises the following steps successively: be coated with conductor shield 2 in the periphery of twisted copper conductors 1, the periphery of conductor shield 2 is evenly extruded with ethylene propylene rubber insulated layer 3, is extruded with high thermal resistivity chemical crosslinking polyolefin oversheath 4 in the periphery of ethylene propylene rubber insulated layer 3.Twisted copper conductors 1 forms for the 5th class soft structure tinned conductor that meets IEC 60228-2004 standard is stranded, and ethylene propylene rubber insulated layer 3 adopts the ethylene-propylene rubber met in IEC 60092-351 standard.
Wherein, the preparation method of described high thermal resistivity chemical crosslinking polyolefin oversheath is as follows: (1) prepares raw material, LEVAPREN 500HV rubber: 10 parts by following component and weight content; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 1 part; Triallyl cyanurate: 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.5 part; Stearic acid: 1 part; Aluminium hydroxide: 35 parts; Fume colloidal silica: 10 parts; N550 carbon black: 1 part; Tissuemat E: 2.5 parts; Alkylated diphenylamine: 0.4 part; Firebrake ZB: 5 parts; (2) first vinyl three ('beta '-methoxy ethyoxyl) silane, stearic acid, aluminium hydroxide, fume colloidal silica, N550 carbon black, Tissuemat E, alkylated diphenylamine and Firebrake ZB are dropped into banbury, at 30 DEG C mixing 10 minutes, then banbury temperature is risen to 120 DEG C, add LEVAPREN 500HV rubber and ethylene propylene diene rubber 4045M to continue mixing 18 minutes, then elastomeric compound is moved to mill and carry out compressing tablet, cooling 36 hours; Then banbury temperature is controlled at 110 DEG C; above-mentioned sizing material is dropped into banbury; and add dual-tert-butyl peroxy isopropyl base benzene and mixing 4 minutes of triallyl cyanurate; again elastomeric compound is moved to mill and play triangle bag or clot 8 times; then compressing tablet, cooling, on singe screw comminutor, granulation is for subsequent use.
Described high thermal resistivity chemical crosslinking polyolefin oversheath adopts cold feeding manner to extrude from double screw extruder, the draw ratio of screw rod is 20:1, body temperature when extruding is 120 DEG C, head temperature is 125 DEG C, the cooled screw mode of rubber extruding machine adopts water cooling, is cross-linked after extruding at 180 DEG C.
To the aging front measuring mechanical property result of high thermal resistivity chemical crosslinking polyolefin oversheath in embodiment one to embodiment three as table 1.
Table 1
Measuring mechanical property result after aging to thermal resistivity chemical crosslinking polyolefin oversheath air-oven high in embodiment one to embodiment three as table 2, aging condition: temperature 158 ± 2 DEG C, time: 168h.
Table 2
Carry out measuring mechanical property after immersing IRM902# oil to thermal resistivity chemical crosslinking polyolefin oversheath high in embodiment one to embodiment three, test result is as table 3.Test condition: temperature 121 ± 2 DEG C, time 18h.
Table 3
To thermal resistivity chemical crosslinking polyolefin oversheath tearing toughness test result high in embodiment one to embodiment three as table 4.
Table 4
To thermal resistivity chemical crosslinking polyolefin oversheath degree of cross linking result of the test high in embodiment one to embodiment three as table 5, test condition: temperature 200 ± 3 DEG C, load-time 15min, mechanical stress 20 N/cm2.
Table 5
Carry out heat distortion test to thermal resistivity chemical crosslinking polyolefin oversheath high in embodiment one to embodiment three, test result is as shown in table 6, probe temperature 121 ± 2 DEG C, time 1 h.
Table 6
As shown in table 7 to the test result of the acid gas content of thermal resistivity chemical crosslinking polyolefin oversheath high in embodiment one to embodiment three, content of halogen, poison exponent, smoke index.
Table 7
Carry out weather-resistant test to thermal resistivity chemical crosslinking polyolefin oversheath high in embodiment one to embodiment three, testing time 1000h, test result is as shown in table 8.
Table 8
As shown in table 9 to the thermal resistivity test result of thermal resistivity chemical crosslinking polyolefin oversheath high in embodiment one to embodiment three.
Table 9
To adopting the finished cable of the high thermal resistivity chemical crosslinking polyolefin oversheath of embodiment one to embodiment three to test, can normally work under the kinds of radiation and fluence rate of table 10.
Table 10
In embodiment one to embodiment three, LEVAPREN 500HV rubber, also known as second Warburg Pincus rubber, can adopt the product of Jiangyou Chemical Technology Co., Ltd.; Ethylene propylene diene rubber 4045M can adopt the product of Mitsui Co., Ltd. or Wuhan Mao Jia Chemical Co., Ltd.; Dual-tert-butyl peroxy isopropyl base benzene is also known as vulcanizing agent BIPB, and optional Shanghai Fang Rui reaches the product of Chemical Company; Triallyl cyanurate, also known as vulcanizing agent TAC, can select the product of Nanjing Yong Hong Chemical Co., Ltd.; Vinyl three ('beta '-methoxy ethyoxyl) silane, also known as silane coupling A-172, can select the product of Nanjing Chemical Co., Ltd. forward; Stearic acid, also known as activating agent SA, can select the product of Guangzhou justice and Chemical Co., Ltd.; Aluminium hydroxide can select the product of Shanghai Xiang Meng Chemical Co., Ltd.; Fume colloidal silica can select the product of Yangzhou Hao Neng Chemical Co., Ltd.; N550 carbon black can select the product of Wuhan Tan Xin carbon black Science and Technology Development Co., Ltd.; Tissuemat E can select the product of Yangzhou rowland new material Co., Ltd; Alkylated diphenylamine also known as antioxidant D DA, the product of optional Shanghai addition Chemical Co., Ltd.; Firebrake ZB can select the product of Zibo Wuwei Industrial Co., Ltd..The present invention is raw materials used, except above producer, all can select other satisfactory like product on market.
The foregoing is only the better possible embodiments of the present invention, non-ly therefore limit to scope of patent protection of the present invention.In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of application claims.
Claims (5)
1. naval vessel petrochemical industry 5000 to 15000 volt jumper cables, it is characterized in that: the periphery of twisted copper conductors is coated with conductor shield, the periphery of conductor shield is evenly extruded with ethylene propylene rubber insulated layer, and the periphery of ethylene propylene rubber insulated layer is extruded with high thermal resistivity chemical crosslinking polyolefin oversheath; Raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 ~ 1 part; Triallyl cyanurate: 0.2 ~ 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 ~ 0.5 part; Stearic acid: 0.5 ~ 1 part; Aluminium hydroxide: 30 ~ 35 parts; Fume colloidal silica: 6 ~ 10 parts; N550 carbon black: 0.6 ~ 1 part; Tissuemat E: 1.5 ~ 2.5 parts; Alkylated diphenylamine: 0.2 ~ 0.4 part; Firebrake ZB: 2 ~ 5 parts.
2. naval vessel according to claim 1 petrochemical industry 5000 to 15000 volt jumper cables, is characterized in that, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 part; Triallyl cyanurate: 0.2 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 part; Stearic acid: 0.5 part; Aluminium hydroxide: 30 parts; Fume colloidal silica: 6 parts; N550 carbon black: 0.6 part; Tissuemat E: 1.5 parts; Alkylated diphenylamine: 0.2 part; Firebrake ZB: 2 parts.
3. naval vessel according to claim 1 petrochemical industry 5000 to 15000 volt jumper cables, is characterized in that, raw material components and the weight content of described high thermal resistivity chemical crosslinking polyolefin oversheath are as follows, LEVAPREN 500HV rubber: 10 parts; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 1 part; Triallyl cyanurate: 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.5 part; Stearic acid: 1 part; Aluminium hydroxide: 35 parts; Fume colloidal silica: 10 parts; N550 carbon black: 1 part; Tissuemat E: 2.5 parts; Alkylated diphenylamine: 0.4 part; Firebrake ZB: 5 parts.
4. the naval vessel petrochemical industry manufacture method of 5000 to 15000 volt jumper cables, it is characterized in that, comprise the following steps successively: at the periphery coating conductor screen of twisted copper conductors, then evenly extrude ethylene propylene rubber insulated layer in the periphery of conductor shield, then extrude high thermal resistivity chemical crosslinking polyolefin oversheath in the periphery of ethylene propylene rubber insulated layer; The preparation method of described high thermal resistivity chemical crosslinking polyolefin oversheath is as follows: (1) prepares raw material, LEVAPREN 500HV rubber: 10 parts by following component and weight content; Ethylene propylene diene rubber 4045M:10 part; Dual-tert-butyl peroxy isopropyl base benzene: 0.6 ~ 1 part; Triallyl cyanurate: 0.2 ~ 0.4 part; Vinyl three ('beta '-methoxy ethyoxyl) silane: 0.2 ~ 0.5 part; Stearic acid: 0.5 ~ 1 part; Aluminium hydroxide: 30 ~ 35 parts; Fume colloidal silica: 6 ~ 10 parts; N550 carbon black: 0.6 ~ 1 part; Tissuemat E: 1.5 ~ 2.5 parts; Alkylated diphenylamine: 0.2 ~ 0.4 part; Firebrake ZB: 2 ~ 5 parts; (2) first vinyl three ('beta '-methoxy ethyoxyl) silane, stearic acid, aluminium hydroxide, fume colloidal silica, N550 carbon black, Tissuemat E, alkylated diphenylamine and Firebrake ZB are dropped into banbury, at 20 DEG C ~ 30 DEG C mixing 9 ~ 10 minutes, then banbury temperature is risen to 110 DEG C ~ 120 DEG C, add LEVAPREN 500HV rubber and ethylene propylene diene rubber 4045M to continue mixing 15 ~ 18 minutes, then elastomeric compound is moved to mill and carry out compressing tablet, cooling 24 ~ 36 hours; Then banbury temperature is controlled at 100 ~ 110 DEG C; elastomeric compound is dropped into banbury; and add dual-tert-butyl peroxy isopropyl base benzene and mixing 3 ~ 4 minutes of triallyl cyanurate; again elastomeric compound is moved to mill and play triangle bag or clot 7 ~ 8 times; then compressing tablet, cooling, on singe screw comminutor, granulation is for subsequent use.
5. the naval vessel according to claim 4 petrochemical industry manufacture method of 5000 to 15000 volt jumper cables, it is characterized in that, described high thermal resistivity chemical crosslinking polyolefin oversheath adopts cold feeding manner to extrude from double screw extruder, the draw ratio of screw rod is (15 ~ 20): 1, body temperature when extruding is 115 ± 5 DEG C, head temperature is 120 ± 5 DEG C, and the cooled screw mode of rubber extruding machine adopts water cooling, is cross-linked after extruding at 160 ~ 180 DEG C.
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| CN105185449A (en) * | 2015-09-22 | 2015-12-23 | 晋源电气集团股份有限公司 | Oil resistant and high and low temperature resistant mine cable |
| CN109749321A (en) * | 2017-11-01 | 2019-05-14 | 江苏亨通电力电缆有限公司 | Oversea wind power generation low smoke, zero halogen soft rubber cable and its preparation process |
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| CN101131890A (en) * | 2007-09-20 | 2008-02-27 | 上海南大集团有限公司 | Ethylene propylene rubber insulated non-stick sheath electrical hand cable with 10kV rated voltage |
| CN201584202U (en) * | 2009-12-04 | 2010-09-15 | 江苏远洋东泽电缆股份有限公司 | Power supply flexible cable for crossing over boat body of open dredge boat |
| CN102977289A (en) * | 2012-11-05 | 2013-03-20 | 安徽金桥电缆有限公司 | City track EPDM (ethylene propylene diene monomer) medium-voltage insulation material and its preparation method |
| CN203192527U (en) * | 2013-03-26 | 2013-09-11 | 江苏远洋东泽电缆股份有限公司 | Transformer and current stabilizer connecting cable in ship illumination series circuit |
| CN203456167U (en) * | 2013-09-13 | 2014-02-26 | 江苏远洋东泽电缆股份有限公司 | 5000 to 15000 volts jumper cable for ships and petrochemicals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0355715A (en) * | 1989-07-24 | 1991-03-11 | Fujikura Ltd | Power cable |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131890A (en) * | 2007-09-20 | 2008-02-27 | 上海南大集团有限公司 | Ethylene propylene rubber insulated non-stick sheath electrical hand cable with 10kV rated voltage |
| CN201584202U (en) * | 2009-12-04 | 2010-09-15 | 江苏远洋东泽电缆股份有限公司 | Power supply flexible cable for crossing over boat body of open dredge boat |
| CN102977289A (en) * | 2012-11-05 | 2013-03-20 | 安徽金桥电缆有限公司 | City track EPDM (ethylene propylene diene monomer) medium-voltage insulation material and its preparation method |
| CN203192527U (en) * | 2013-03-26 | 2013-09-11 | 江苏远洋东泽电缆股份有限公司 | Transformer and current stabilizer connecting cable in ship illumination series circuit |
| CN203456167U (en) * | 2013-09-13 | 2014-02-26 | 江苏远洋东泽电缆股份有限公司 | 5000 to 15000 volts jumper cable for ships and petrochemicals |
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