CN103985450A - Cable with good sealing performance - Google Patents

Abstract

The invention discloses a cable with good sealing performance. The cable with the good sealing performance comprises a plurality of copper conductors. A butadiene-acrylonitrile rubber insulating layer and a wrapping layer which is formed by wrapping a plastic film are wrapped outside each copper conductor in sequence. A fiber woven isolating layer is wrapped outside the wrapping layers formed by wrapping the plastic films together, the fiber woven isolating layer is filled with sealing gum, and an inside liner layer which is formed by overlapping and wrapping high fire resistant fiber bands is wrapped outside the fiber woven isolating layer. An inner protecting bush layer, a copper strip shielding layer, a steel wire armoring layer formed by steel wires which are twisted into a bundle and a silicone rubber outer protecting bush layer are sequentially wrapped outside the inside liner layer which is formed by overlapping and wrapping the high fire resistant fiber bands. A water stopping buffer layer is additionally arranged between the inner protecting bush layer and the copper strip shielding layer. The gap between the steel wire armoring layer formed by the steel wires which are twisted into the bundle and the silicone rubber outer protecting bush layer is filled with a water stopping yarn packing layer. According to the cable with the good sealing performance, the multi-layered sealing waterproof structure is additionally arranged, and thus the overall sealing performance of the cable is good.

Description

The cable of good seal performance

technical field:

The present invention relates to cable, is mainly a kind of cable of good seal performance.

background technology:

The cable of using on the cable of using in water-bed operation or ship, maintain good signal, this just requires the water resistance of electric wire of connection device signal transmission good, has stronger sealing property, the cable inner seal structure layer of existing use is single, waterproof sealing poor-performing.

Existing cable insulating barrier, restrictive coating material used exist intensity low, easily tear, not fire-retardant, the shortcoming that useful life is short, affects useful life of cable.

summary of the invention:

Technical problem to be solved by this invention is to provide a kind of cable of good seal performance, has additional multi-level hermetic water-proof structure in its structure, makes the good seal performance of whole cable.The present invention's inner restrictive coating strength of materials used is high, fire-retardant, and long service life, has done high the useful life of cable.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of cable of good seal performance, include multiple copper conductors, it is characterized in that: described many copper conductors are coated with respectively the lapping layer of acrylonitrile-butadiene rubber insulating barrier and the wrapped formation of plastic film outward successively, the lapping layer of the wrapped formation of plastic film of described multiple conducting wires is coated with filament braiding separator outward jointly, in described filament braiding separator, be filled with fluid sealant, described filament braiding separator is coated with the inner covering of the overlapping wrapped formation of high flame retardant fabric strip, the inner covering of the overlapping wrapped formation of described high flame retardant fabric strip is coated with inner restrictive coating outward successively, copper strip shielding layer, wire armoring layer and silicon rubber external sheath layer that the stranded bunchy of steel wire forms, between described inner restrictive coating and copper strip shielding layer, have additional water-blocking buffer layer, between the wire armoring layer forming at the stranded bunchy of steel wire and silicon rubber external sheath layer, be filled with water blocking yarn packed layer.

It is to be made by the raw material of following weight parts for described inner restrictive coating: SG-3 polyvinyl chloride 100-110, ethylene propylene diene rubber 30-40, calcium carbonate 3-5, calcium sulfate 5-10,4-4 '-dimorpholinyl disulfide 1-2, rilanit special 2-3, antioxidant 264 1-2, antioxidant 1076 0.3-0.6, adipic acid propanediol polyester 3-4, diisobutyl phthalate 3-4, nano aluminum alumina 1-2, jade powder 1-2, modification bortz powder 50-70;

The preparation method of modification bortz powder calcines 1-2 hour by bortz powder at 600-650 DEG C, take out cooling after, in the hydrochloric acid that is 12-18% by concentration, steep while stirring after 2-3 hour, refilter, clean with deionized water, dry, be equivalent to silane coupling A-171 of bortz powder weight 1-2%,, 1-2% the trimethylolpropane triacrylate of 2-nonyl-phthalate ester, 3-6% of aluminate coupling agent DL-411-A, 1-2% mix after, at 50-60 DEG C, stir after 30-40 minute, ovendry power is broken into powder and get final product.

The preparation method of described inner restrictive coating material is:

(1) get SG-3 polyvinyl chloride, calcium sulfate, rilanit special, adipic acid propanediol polyester and mix by weight, in kneader, at 140-158 DEG C, mediate after 7-9 minute, take out cooling;

(2) by the cooled material of step (1) gained and the each raw material blending of residue, mixing in double screw extruder, granulation, obtain finished product.

In the layer of structure of cable of the present invention, have the lapping layer of the wrapped formation of plastic film, water blocking yarn packed layer and the fluid sealant of filament braiding separator, water-blocking buffer layer and filling, multi-level hermetically-sealed construction performance is good.

Advantage of the present invention is:

In structure of the present invention, have additional multi-level hermetic water-proof structure, make the good seal performance of whole cable.The present invention's inner restrictive coating strength of materials used is high, fire-retardant, and long service life, has done high the useful life of cable.

brief description of the drawings:

Fig. 1 is structural representation of the present invention.

embodiment:

Referring to Fig. 1, a kind of cable of good seal performance, include multiple copper conductors 1, the outer lapping layer 3 that is coated with successively respectively acrylonitrile-butadiene rubber insulating barrier 2 and the wrapped formation of plastic film of described many copper conductors 1, the outer filament braiding separator 4 that is jointly coated with of lapping layer 3 of the wrapped formation of plastic film of described multiple conducting wires, in described filament braiding separator 4, be filled with fluid sealant 5, described filament braiding separator 4 is coated with the inner covering 6 of the overlapping wrapped formation of high flame retardant fabric strip, the outer inner restrictive coating 7 that is coated with successively of inner covering 6 of the overlapping wrapped formation of described high flame retardant fabric strip, copper strip shielding layer 8, wire armoring layer 9 and silicon rubber external sheath layer 10 that the stranded bunchy of steel wire forms, between described inner restrictive coating 7 and copper strip shielding layer 8, have additional water-blocking buffer layer 11, between the wire armoring layer 9 forming at the stranded bunchy of steel wire and silicon rubber external sheath layer 10, be filled with water blocking yarn packed layer 12.

It is to be made by the raw material of following weight kg for inner restrictive coating 7: SG-3 polyvinyl chloride 110, ethylene propylene diene rubber 40, calcium carbonate 5, calcium sulfate 10,4-4 '-dimorpholinyl disulfide 2, rilanit special 3, antioxidant 264 2, antioxidant 1076 0.6, adipic acid propanediol polyester 4, diisobutyl phthalate 4, nano aluminum alumina 2, jade powder 2, modification bortz powder 70;

The preparation method of modification bortz powder calcines bortz powder 2 hours at 650 DEG C, take out cooling after, in the hydrochloric acid that is 18% by concentration, steep while stirring after 3 hours, refilter, clean with deionized water, dry, be equivalent to silane coupling A-171 of bortz powder weight 1%, after 2% aluminate coupling agent DL-411-A, 1% 2-nonyl-phthalate ester, 6% trimethylolpropane triacrylate mix, stir after 40 minutes at 60 DEG C, ovendry power is broken into powder and get final product.

Inner restrictive coating 7 material preparation methods are:

(1) get SG-3 polyvinyl chloride, calcium sulfate, rilanit special, adipic acid propanediol polyester and mix by weight, in kneader, at 148 DEG C, mediate after 9 minutes, take out cooling;

(2) by the cooled material of step (1) gained and the each raw material blending of residue, mixing in double screw extruder, granulation, obtain finished product.

The present embodiment inner restrictive coating 7 materials are carried out to performance test, tensile strength 17.7MPa, elongation at break 388%, fire-retardant rank V2.

Claims (3)

1. the cable of a good seal performance, include multiple copper conductors, it is characterized in that: described many copper conductors are coated with respectively the lapping layer of acrylonitrile-butadiene rubber insulating barrier and the wrapped formation of plastic film outward successively, the lapping layer of the wrapped formation of plastic film of described multiple conducting wires is coated with filament braiding separator outward jointly, in described filament braiding separator, be filled with fluid sealant, described filament braiding separator is coated with the inner covering of the overlapping wrapped formation of high flame retardant fabric strip, the inner covering of the overlapping wrapped formation of described high flame retardant fabric strip is coated with inner restrictive coating outward successively, copper strip shielding layer, wire armoring layer and silicon rubber external sheath layer that the stranded bunchy of steel wire forms, between described inner restrictive coating and copper strip shielding layer, have additional water-blocking buffer layer, between the wire armoring layer forming at the stranded bunchy of steel wire and silicon rubber external sheath layer, be filled with water blocking yarn packed layer.

2. the cable of good seal performance according to claim 1, it is to be made by the raw material of following weight parts to it is characterized in that described inner restrictive coating: SG-3 polyvinyl chloride 100-110, ethylene propylene diene rubber 30-40, calcium carbonate 3-5, calcium sulfate 5-10,4-4 '-dimorpholinyl disulfide 1-2, rilanit special 2-3, antioxidant 264 1-2, antioxidant 1076 0.3-0.6, adipic acid propanediol polyester 3-4, diisobutyl phthalate 3-4, nano aluminum alumina 1-2, jade powder 1-2, modification bortz powder 50-70;

The preparation method of modification bortz powder calcines 1-2 hour by bortz powder at 600-650 DEG C, take out cooling after, in the hydrochloric acid that is 12-18% by concentration, steep while stirring after 2-3 hour, refilter, clean with deionized water, dry, be equivalent to silane coupling A-171 of bortz powder weight 1-2%,, 1-2% the trimethylolpropane triacrylate of 2-nonyl-phthalate ester, 3-6% of aluminate coupling agent DL-411-A, 1-2% mix after, at 50-60 DEG C, stir after 30-40 minute, ovendry power is broken into powder and get final product.

3. the cable of good seal performance according to claim 1, is characterized in that the preparation method of inner restrictive coating material is:

(1) get SG-3 polyvinyl chloride, calcium sulfate, rilanit special, adipic acid propanediol polyester and mix by weight, in kneader, at 140-158 DEG C, mediate after 7-9 minute, take out cooling;

(2) by the cooled material of step (1) gained and the each raw material blending of residue, mixing in double screw extruder, granulation, obtain finished product.