A kind of space flight tension power cable
Technical field
The present invention relates to field of cable technology, particularly relate to a kind of space flight tension power cable.
Background technology
Existing cable is when by External Force Acting generation mechanical vibration and flexural deformation, and insulating barrier and sheath are easily sent out
Change shape, causes the change of conductor centre-to-centre spacing size, affects the electric property of cable;The most also there is weatherability
The shortcoming that the performance such as property, noninflammability, chemical proofing can not be taken into account simultaneously.Existing cable protective cover material aging resistance
Property difference etc. shortcoming.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of space flight tension power cable.This
Invention cable outer sheath material ageing resistance is good.
The present invention is achieved by the following technical solutions:
A kind of space flight tension power cable, includes cable core, and described cable core includes I shape polyamide skeleton,
Left and right sides at described I shape polyamide skeleton is placed with core respectively, and described core includes oval nylon
Skeleton, scribbles marine glue in the outside of oval polyamide skeleton, is placed with elasticity in the inside of oval polyamide skeleton
Backing plate, is placed with conductor respectively in the both sides of resilient sleeper-bearing, is coated with magnalium in the outside of described conductor successively and closes
Spun gold woven shield and flame retardant silica gel inner sheath, be coated with braided steel wire successively and resist in the outside of described cable core
Slide, carbon fiber wire braid, aluminium foil lapping layer and oversheath.
Described jacket material is made up of the raw material of following weight portion: polyurethane rubber 40-50, butadiene-styrene rubber
20-30, ethylene-chlorotrifluoro-ethylene copolymer 20-30, cumyl peroxide 2-3, trimethacrylate acid three
Hydroxymethyl-propane ester 1.5-2.5, nano boron carbide 5-10, nano-silicon nitride 8-14, antimony pentasulfide 2-3,
Aluminium hydroxide 10-15, Firebrake ZB 5-10, zinc stearate 1-2, liquid paraffin 3-6, blanc fixe 12-18,
Mica powder 6-12, dibutyl phthalate 10-15, antioxidant D NP 1-2, modified mineral filler 16-22;
The preparation method of described modified complex mineral filler is as follows: (1) 4-8:3-5:2-3 in mass ratio:
1 weighs barite, olivine, attapulgite, illite mix homogeneously, pulverizes, and crosses 50-100 mesh sieve,
Then at 820-880 DEG C of temperature lower calcination 20-30min, it is continuously heating to 1050-1150 DEG C, calcines 2-3h,
Shrend, dries;(2) take and be equivalent to the 4,4'-of the dehydrated alcohol of complex mineral filler weight 2-3 times, 40-50%
The compounded mix that MDA epoxy resin, the 2-methylimidazole of 2-4% process with step (1) mixes
Uniformly, heating in water bath to 120-140 DEG C, 500-1000rpm high-speed stirred 0.5-1h, filter, dry;(3)
Take and be equivalent to the ethylene propylene diene rubber of complex mineral filler weight 30-40%, the Nomex of 15-25%, 5-10%
Ethylene methyl methacrylate copolymer, the tetramethylolmethane volution phosphoric acid phenol ester of 5-10%, all scholars of 3-5%
The complex mineral filler that woods, the Nanometer-sized Neodymium Oxide of 1-2% process with step (2) together puts into double after mixing homogeneously
Screw extruder carries out melt blending, then extruding pelletization, naturally cools to room temperature, is modified complex mineral
Filler.
The preparation method of described jacket material, comprises the following steps: weigh polyurethane rubber, ethylene-three
Fluorine vinyl chloride copolymer, trihydroxy methyl propane trimethyl acrylate, antimony pentasulfide, liquid paraffin, tristearin
Acid zinc, dibutyl phthalate put in mill, mixing 4-8min at a temperature of roller temperature is 80-90 DEG C,
Then regulation roller temperature is to 55-65 DEG C, adds the mixing 8-14min of remaining raw material, parks 5-10h, discharging.
The invention have the advantage that the present invention is coated with braided steel wire tension cylinder, carbon fiber successively in the outside of cable core
Silk braid, aluminium foil lapping layer, have the electrical characteristic of excellence, mechanical property, property at high and low temperature, low friction
Property, chemical proofing, against weather, noninflammability.Cable outer sheath material of the present invention has the resistance to irradiation of excellence
Performance and ageing resistance, also have that hot strength is high, physical and mechanical properties is good, chemically stable is good, fire resistance
Getting well and the advantage of low smoke, zero halogen low toxicity, service life is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, a kind of space flight tension power cable, including cable core, described cable core includes I-shaped
Type polyamide skeleton 1, the left and right sides at described I shape polyamide skeleton 1 is placed with core, described core respectively
Include oval polyamide skeleton 2, scribble marine glue 3, at ellipse in the outside of oval polyamide skeleton 2
The inside of polyamide skeleton 2 is placed with resilient sleeper-bearing 4, is placed with conductor 5 respectively in the both sides of resilient sleeper-bearing 4, in institute
The outside of the conductor 5 stated is coated with aluminum-magnesium alloy wire woven shield 6 and flame retardant silica gel inner sheath 7 successively,
It is wrapped that the outside of described cable core is coated with braided steel wire tension cylinder 8, carbon fiber wire braid 9, aluminium foil successively
Layer 10 and oversheath 11.
Described oversheath 11 material is made up of the raw material of following weight portion: polyurethane rubber 45, butadiene-styrene rubber 25,
Ethylene-chlorotrifluoro-ethylene copolymer 30, cumyl peroxide 2.5, trimethacrylate acid trimethylolpropane
Ester 2, nano boron carbide 8, nano-silicon nitride 12, antimony pentasulfide 2, aluminium hydroxide 15, Firebrake ZB 7,
Zinc stearate 1.5, liquid paraffin 4, blanc fixe 16, mica powder 8, dibutyl phthalate 12,
Antioxidant D NP 1.5, modified mineral filler 18;
The preparation method of described modified complex mineral filler is as follows: (1) 6:4:3:1 in mass ratio claims
Take barite, olivine, attapulgite, illite mix homogeneously, pulverize, cross 80 mesh sieves, then at 860 DEG C
Temperature lower calcination 25min, is continuously heating to 1050 DEG C, calcines 3h, shrend, dries;(2) take and be equivalent to
Dehydrated alcohol that complex mineral filler weight is 2 times, the 4,4'-MDA epoxy resin of 45%, 3%
The compounded mix that processes with step (1) of 2-methylimidazole mix homogeneously, heating in water bath to 125 DEG C, 500rpm
High-speed stirred 1h, filters, and dries;(3) take be equivalent to complex mineral filler weight 40% ethylene propylene diene rubber,
The Nomex of 20%, the ethylene methyl methacrylate copolymer of 8%, the tetramethylolmethane volution phosphoric acid phenol of 7%
The complex mineral filler that ester, the vaseline of 4%, the Nanometer-sized Neodymium Oxide of 1.5% process with step (2) is mixed homogeneously
After together put into double screw extruder and carry out melt blending, then extruding pelletization, naturally cool to room temperature, be
Modified complex mineral filler.
The preparation method of described oversheath 11 material, comprises the following steps: weigh polyurethane rubber, ethylene-trifluoro
Vinyl chloride copolymer, trihydroxy methyl propane trimethyl acrylate, antimony pentasulfide, liquid paraffin, stearic acid
Zinc, dibutyl phthalate put in mill, mixing 4-8min at a temperature of roller temperature is 80-90 DEG C, so
Rear regulation roller temperature, to 55-65 DEG C, adds the mixing 8-14min of remaining raw material, parks 5-10h, discharging.
After testing, the results of property such as following table of the CABLE MATERIALS prepared: