CN105161163A - Fireproof internet of things (IOT) field bus cable and manufacturing method thereof - Google Patents
Fireproof internet of things (IOT) field bus cable and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses a fireproof internet of things (IOT) field bus cable and a manufacturing method thereof. The fireproof IOT field bus cable comprises a bus cable core composed of a transmission cable, an optical cable and a data cable, as well as a ceramic fiber fireproof belt, a fifth silicon rubber composite flame-retardant layer, a nano flame-retardant insulating layer and a flame-retardant outer sheath wrapped outside the bus cable core in sequence; a third flame-retardant filling material is filled between the bus cable core and the ceramic fiber fireproof belt. The fireproof test of the cable not only can meet the requirement of national standard GB/T 19216, but also can meet the requirements of levels C, W and Z provided in British BS6387 standards; and in the test process, the cable is neither short-circuited nor open-circuited.
Description
Technical field
The present invention relates to Internet of Things field, specifically a kind of fire-type Internet of Things bus cable and preparation method thereof.
Background technology
Along with developing rapidly of national economy, use amount and the laying dense degree of cable are more and more higher; Particularly Internet of Things field, Internet of Things fieldbus relates to the transmission of frequency multiplexing data-signal, voice signal, picture signal and power supply signal, prior art adopts optical fiber, data wire, power line to transmit above-mentioned signal and data respectively, cable like cobweb is caused to be covered with whole scene, not only have impact on stability and the reliability of Signal transmissions, and hinder the layout and installation of interfering other equipment on-the-spot.
Increased year by year by the fire electrically caused in recent years, and the fire wherein caused due to electric wire reason accounts for sizable ratio.In a fire, " secondary disaster " that a large amount of smog etc. of the corrosivity discharged because cable plays fire spread and toxic gas, generation cause, cause the attention of people, therefore the requirement of relevant department to cable fire-proof, the characteristic such as fire-retardant is also more and more higher, not only require that cable line has high reliability, and require that it is to the fail safe of surrounding environment.GB50217-94 " Code for design of cables of electric works " is using the important measures adopting flame retardant cable, fire-resisting cable etc. as cable fire-proof, and clear stipulaties should select the fireproof cable of flame retardant cable or other type in some place.
For now, fire-retardant, fire-resistant, low-smoke low-halogen or low smoke halogen-free flame retardant cable are referred to as fireproof cable by cable industry custom.But these products are because of the difference of its performance index, manufacturing technology, and the scope of its application is also different.The after-combustion of not easily catching fire or catch fire of common flame-retardant electric wire and cable is only limited within limits, therefore it can suppress propagation of flame, the fire prevention level of whole piece cable line can be improved, be generally used for the higher spaciousness of cable laying dense degree and draughty place.The main feature of fire-resisting cable is the safe operation that still can keep certain hour in ablaze situation, and during to ensure fire, energising can be continued in fire-fighting, warning system, emergency service loop etc., and disaster relief work is normally carried out.And low-smoke low-halogen, low smoke halogen-free flame retardant cable burn time produce smog and pernicious gas less, the loss that " secondary disaster " brings can be reduced to comparatively low degree, therefore be applicable to require higher subway, tunnel, boats and ships and vehicle, power station and important skyscraper etc.But this several cable is violent in the intensity of a fire, wind-force is powerful, just lose its normal characteristic under high temperature, high-pressure situations and can not meet instructions for use, because they mostly are organic material, easily burn under case of fire, and send a lot of heat, accelerate the burning of cable.
Summary of the invention
The object of the present invention is to provide a kind of fire-type Internet of Things bus cable and preparation method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of fire-type Internet of Things bus cable, comprise the bus cable inner core be made up of power transmission cable, optical cable and data cable, and the ceramic fibre fire resistant belt coated successively in the outside of bus cable inner core, the 5th silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and fire-retardant oversheath; The 3rd flame-retardant filler is filled with between bus cable inner core and ceramic fibre fire resistant belt; Described power transmission cable is provided with two or three, and every root power transmission cable is by the first conductor wire core and the first silicon rubber composite material flame-retardant layer of extruding in the first conductor wire core outside; Described optical cable comprises the first strengthening core being positioned at optical cable center, the second silicon rubber composite material flame-retardant layer being positioned at many fibre cores around the first strengthening core, being positioned at optical cable outside, and first flame-retardant filler of filling between fibre core and the second silicon rubber composite material flame-retardant layer; Every root fibre core is coated with covering and coat outward all successively; Described data cable comprises the second strengthening core being positioned at data cable center, the 4th silicon rubber composite material flame-retardant layer being positioned at many second conductor wire cores around the second strengthening core, being positioned at data cable outside, and second flame-retardant filler of filling between the second conductor wire core and the 4th silicon rubber composite material flame-retardant layer; Every root second conductor wire core has all extruded the 3rd silicon rubber composite material flame-retardant layer outward, and every two second conductor wire cores are to being twisted into one group;
Described first flame-retardant filler, the second flame-retardant filler and the 3rd flame-retardant filler are same flame-retardant filler, and this flame-retardant filler according to the component of weight portion is: micron order kaolin 150-250 part, ethylene-vinyl acetate copolymer 100-200 part, polyether modified silicon oil 50-100 part, carbon black 30-50 part, asbestos 15-25 part, glass fibre 15-25 part, tin acetate 2-6 part;
Described first silicon rubber composite material flame-retardant layer, second silicon rubber composite material flame-retardant layer, 3rd silicon rubber composite material flame-retardant layer, 4th silicon rubber composite material flame-retardant layer and the 5th silicon rubber composite material flame-retardant layer adopt same silicon rubber composite material, this silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 30-60 part, ammonium polyphosphate 20-30 part, melamine 10-20 part, pentaerythrite 20-30 part, sepiolite powder 10-20 part, medical stone powder 5-10 part, nano-silicon nitride 5-10 part, ferric pyrophosphate 2-8, silane coupler 2-8 part,
Described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 50-150 part, nanometer nitrogen-phosphorus expansion fire retardant 2-10 part, nm-class boron nitride 2-10 part, nano silicon oxide 2-10 part, nano mesoporous molecular screen 2-10 part, promoter 3-8 part, plasticizer 0.5-1.5 part, age resistor 1-4 part.
As the further scheme of the present invention: described flame-retardant filler according to the component of weight portion is: micron order kaolin 180-220 part, ethylene-vinyl acetate copolymer 140-160 part, polyether modified silicon oil 70-80 part, carbon black 35-45 part, asbestos 18-22 part, glass fibre 18-22 part, tin acetate 3-5 part.
As the further scheme of the present invention: described ceramic fibre fire resistant belt is bonded by one deck pottery silica gel and layer of glass, and thickness is 0.2-0.5mm, and adjacent layer adopts two-way wrapped mode, every ply place apart windings.
As the further scheme of the present invention: described silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 40-50 part, ammonium polyphosphate 24-26 part, melamine 14-16 part, pentaerythrite 24-26 part, sepiolite powder 14-16 part, medical stone powder 7-8 part, nano-silicon nitride 7-8 part, ferric pyrophosphate 4-6 part, silane coupler 4-6 part.
As the further scheme of the present invention: described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 80-120 part, nanometer nitrogen-phosphorus expansion fire retardant 5-7 part, nm-class boron nitride 5-7 part, nano silicon oxide 5-7 part, nano mesoporous molecular screen 5-7 part, promoter 4-6 part, plasticizer 0.8-1.2 part, age resistor 2-3 part.
As the further scheme of the present invention: described flame-retardant filler according to the component of weight portion is: micron order kaolin 200 parts, ethylene-vinyl acetate copolymer 150 parts, polyether modified silicon oil 75 parts, carbon black 40 parts, 20 parts, asbestos, 20 parts, glass fibre, tin acetate 4 parts.
As the further scheme of the present invention: described silicon rubber composite material according to the component of weight portion is: 45 parts, organic silicon rubber waste material, ammonium polyphosphate 25 parts, melamine 15 parts, pentaerythrite 25 parts, sepiolite powder 15 parts, medical stone powder 7.5 parts, nano-silicon nitride 7.5 parts, ferric pyrophosphate 5, silane coupler 5 parts.
As the further scheme of the present invention: described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 100 parts, nanometer nitrogen-phosphorus expansion fire retardant 6 parts, nm-class boron nitride 6 parts, nano silicon oxide 6 parts, nano mesoporous molecular screen 6 parts, promoter 5.5 parts, 1 part, plasticizer, 2.5 parts, age resistor.
As the further scheme of the present invention: described fire-retardant oversheath adopts low-smoke non-halogen flame-retardant high-strength abrasion-proof elastomer to make.
A preparation method for fire-type Internet of Things bus cable, concrete steps are:
(1) power transmission cable is made: adopt several conductor strand to become first conductor wire core, then outside the first conductor wire core, extrude the first silicon rubber composite material flame-retardant layer, namely obtain power transmission cable; For subsequent use;
(2) make optical cable: centered by the first strengthening core, around the first strengthening core, arrange that six roots of sensation outside is provided with the fibre core of covering and coat, make first total cable; Then adopt double-layer coextrusion technique at the first total cable outer cladding first flame-retardant filler and the second silicon rubber composite material flame-retardant layer, namely obtain optical cable; For subsequent use;
(3) make data cable: all extrude the 3rd silicon rubber composite material flame-retardant layer outward at the second conductor wire core, then by two second conductor wire cores to being twisted into one group; Again the second conductor wire core after four groups of pair twists is arranged in around the second strengthening core, makes second total cable; Then adopt double-layer coextrusion technique at the second total cable outer cladding second flame-retardant filler and the 4th silicon rubber composite material flame-retardant layer, namely obtain data cable; For subsequent use;
(4) by two or three power transmission cables to being twisted into one group, then be plied to the 3rd total cable with optical cable and data cable; Then at the 3rd total cable outer cladding the 3rd flame-retardant filler, then adopt around-packing technology at the outer wrapped ceramic fibre fire resistant belt of the 3rd flame-retardant filler; Adopt three-layer co-extruded technique again, at ceramic fibre fire resistant belt outer coated 5th silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and fire-retardant oversheath successively from inside to outside; Namely fire-type Internet of Things bus cable is obtained.
Compared with prior art, the invention has the beneficial effects as follows:
The fire resistance test of the fire-type Internet of Things bus cable of the present invention's design not only meets the requirement of GB GB/T19216, and apply 1000V voltage between the conductors, be the 3h that burns in the flame of 950-1000 DEG C in flame temperature, cable neither short circuit is not also opened a way.Also can meet the requirement of A level, B level and the C level specified in Britain BS6387 standard, meanwhile, in burning, also can tolerate Water spray (W level) impact (X level, Y level, Z level) with resistance to mechanical; In process of the test, cable neither short circuit is not also opened a way.
The fire-retardant category-A of this cable fulfils, be fire-retardant highest level, namely anti-flammability in order to extinguish, reducing or suppress the burning of material, adds fire retardant usually in the material, makes material have the performance stoping or delay propagation of flame when burning.When burning things which may cause a fire disaster disappears outside, through can certainly put out after a while.For reaching fire-retardant category-A requirement; in structural design; adopt the materials such as ceramic fibre fire resistant belt, fire-retardant oversheath and homemade silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and flame-retardant filler to carry out multiple protective, the comprehensive mechanical of product is formed and significantly improves.
Accompanying drawing explanation
Fig. 1 is the profile of fire-type Internet of Things bus cable.
In figure: 1-power transmission cable, 11-first conductor wire core, 12-first silicon rubber composite material flame-retardant layer, 2-optical cable, 21-first strengthening core, 22-fibre core, 23-covering, 24-coat, 25-first flame-retardant filler, 26-second silicon rubber composite material flame-retardant layer, 3-data cable, 31-second strengthening core, 32-second conductor wire core, 33-the 3rd silicon rubber composite material flame-retardant layer, 34-second flame-retardant filler, 35-the 4th silicon rubber composite material flame-retardant layer, 4-the 3rd flame-retardant filler, 5-ceramic fibre fire resistant belt, 6-the 5th silicon rubber composite material flame-retardant layer, 7-nano flame retardant insulating barrier, the fire-retardant oversheath of 8-.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of fire-type Internet of Things bus cable, comprise the bus cable inner core be made up of power transmission cable 1, optical cable 2 and data cable 3, and the ceramic fibre fire resistant belt 5 coated successively in the outside of bus cable inner core, the 5th silicon rubber composite material flame-retardant layer 6, nano flame retardant insulating barrier 7 and fire-retardant oversheath 8; The 3rd flame-retardant filler 4 is filled with between bus cable inner core and ceramic fibre fire resistant belt 5; Described power transmission cable 1 is provided with two or three, and every root power transmission cable 1 is by the first conductor wire core 11 and the first silicon rubber composite material flame-retardant layer 12 of extruding in the first conductor wire core 11 outside; Described optical cable 2 comprises the first strengthening core 21 being positioned at optical cable 2 center, the second silicon rubber composite material flame-retardant layer 26 being positioned at many fibre cores 22 around the first strengthening core 21, being positioned at optical cable 2 outside, and first flame-retardant filler 25 of filling between fibre core 22 and the second silicon rubber composite material flame-retardant layer 26; Every root fibre core 22 is outer is coated with covering 23 and coat 24 all successively, and fibre core 22 is prevailing transmission passages of light wave, and the refractive index of covering 23 is slightly less than fibre core, and coat 24 is one deck polymeric coating layers, improves the microbend performance of optical fiber.Described data cable 3 comprises the second strengthening core 31 being positioned at data cable 3 center, the 4th silicon rubber composite material flame-retardant layer 35 being positioned at many second conductor wire cores 32 around the second strengthening core 31, being positioned at data cable 3 outside, and second flame-retardant filler 34 of filling between the second conductor wire core 32 and the 4th silicon rubber composite material flame-retardant layer 35; Every root second conductor wire core 32 is outer has all extruded the 3rd silicon rubber composite material flame-retardant layer 33, and every two second conductor wire cores 32 are to being twisted into one group.
In the present invention, described first flame-retardant filler 25, second flame-retardant filler 34 and the 3rd flame-retardant filler 4 are homemade same flame-retardant filler, and this flame-retardant filler according to the component of weight portion is: micron order kaolin 150-250 part, ethylene-vinyl acetate copolymer 100-200 part, polyether modified silicon oil 50-100 part, carbon black 30-50 part, asbestos 15-25 part, glass fibre 15-25 part, tin acetate 2-6 part.As preferably, this flame-retardant filler according to the component of weight portion is: micron order kaolin 180-220 part, ethylene-vinyl acetate copolymer 140-160 part, polyether modified silicon oil 70-80 part, carbon black 35-45 part, asbestos 18-22 part, glass fibre 18-22 part, tin acetate 3-5 part.
In the present invention, this flame-retardant filler keeps soft loose powder shape at normal temperatures, ensure that finished cable in use flexible; And when running into fire, flame-retardant filler can be formed has heat insulation, fireproof earthenware, bus cable inner core can be worked safely in porcelain tube, thus cable is met to bear under load 1000V condition of work the burning of 950 DEG C, 3 hours, there is anti-spray simultaneously, function that resistance to mechanical is clashed into.
In the present invention, described ceramic fibre fire resistant belt 5 is current material, and it is bonded by one deck pottery silica gel and layer of glass, and thickness is 0.2-0.5mm, and adjacent layer adopts two-way wrapped mode, every ply place apart windings.This material-70 DEG C-210 DEG C time softness, flexible, intensity is high, mechanicalness insulating properties is excellent.Make cable have the features such as softness, sound insulation, shock resistance, construction is laid convenient.
In the present invention, described first silicon rubber composite material flame-retardant layer 12, second silicon rubber composite material flame-retardant layer 26, 3rd silicon rubber composite material flame-retardant layer 33, 4th silicon rubber composite material flame-retardant layer 35 and the 5th silicon rubber composite material flame-retardant layer 6 adopt homemade same silicon rubber composite material, this silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 30-60 part, ammonium polyphosphate 20-30 part, melamine 10-20 part, pentaerythrite 20-30 part, sepiolite powder 10-20 part, medical stone powder 5-10 part, nano-silicon nitride 5-10 part, ferric pyrophosphate 2-8, silane coupler 2-8 part.As preferably, this silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 40-50 part, ammonium polyphosphate 24-26 part, melamine 14-16 part, pentaerythrite 24-26 part, sepiolite powder 14-16 part, medical stone powder 7-8 part, nano-silicon nitride 7-8 part, ferric pyrophosphate 4-6 part, silane coupler 4-6 part.
In the present invention, described nano flame retardant insulating barrier 7 according to the component of weight portion is: water-borne acrylic resin 50-150 part, nanometer nitrogen-phosphorus expansion fire retardant 2-10 part, nm-class boron nitride 2-10 part, nano silicon oxide 2-10 part, nano mesoporous molecular screen 2-10 part, promoter 3-8 part, plasticizer 0.5-1.5 part, age resistor 1-4 part.As preferably, described nano flame retardant insulating barrier 7 according to the component of weight portion is: water-borne acrylic resin 80-120 part, nanometer nitrogen-phosphorus expansion fire retardant 5-7 part, nm-class boron nitride 5-7 part, nano silicon oxide 5-7 part, nano mesoporous molecular screen 5-7 part, promoter 4-6 part, plasticizer 0.8-1.2 part, age resistor 2-3 part.
In the present invention, described fire-retardant oversheath 8 is current material, and it adopts low-smoke non-halogen flame-retardant high-strength abrasion-proof elastomer to make.
Embodiment 1
A preparation method for fire-type Internet of Things bus cable, concrete steps are:
(1) power transmission cable 1 is made: adopt several conductor strand to become first conductor wire core 11, then outside the first conductor wire core 11, extrude the first silicon rubber composite material flame-retardant layer 12, namely obtain power transmission cable 1; For subsequent use;
(2) make optical cable 2: centered by the first strengthening core 21, around the first strengthening core 21, arrange that six roots of sensation outside is provided with the fibre core 22 of covering 23 and coat 24, make first total cable; Then adopt double-layer coextrusion technique at the first total cable outer cladding first flame-retardant filler 25 and the second silicon rubber composite material flame-retardant layer 26, namely obtain optical cable 2; For subsequent use;
(3) make data cable 3: all extrude the 3rd silicon rubber composite material flame-retardant layer 33 the second conductor wire core 32 is outer, then by two second conductor wire cores 32 to being twisted into one group; Again the second conductor wire core 32 after four groups of pair twists is arranged in around the second strengthening core 31, makes second total cable; Then adopt double-layer coextrusion technique at the second total cable outer cladding second flame-retardant filler 34 and the 4th silicon rubber composite material flame-retardant layer 35, namely obtain data cable 3; For subsequent use;
(4) by two or three power transmission cables 1 to being twisted into one group, then be plied to the 3rd total cable with optical cable 2 and data cable 3; Then at the 3rd total cable outer cladding the 3rd flame-retardant filler 4, then adopt around-packing technology at the outer wrapped ceramic fibre fire resistant belt 5 of the 3rd flame-retardant filler 4; Adopt three-layer co-extruded technique again, at ceramic fibre fire resistant belt 5 outer coated 5th silicon rubber composite material flame-retardant layer 6, nano flame retardant insulating barrier 7 and fire-retardant oversheath 8 successively from inside to outside; Namely fire-type Internet of Things bus cable is obtained.
In the present embodiment, described first flame-retardant filler 25, second flame-retardant filler 34 and the 3rd flame-retardant filler 4 are homemade same flame-retardant filler, and this flame-retardant filler according to the component of weight portion is: micron order kaolin 200 parts, ethylene-vinyl acetate copolymer 150 parts, polyether modified silicon oil 75 parts, carbon black 40 parts, 20 parts, asbestos, 20 parts, glass fibre, tin acetate 4 parts.Described first silicon rubber composite material flame-retardant layer 12, second silicon rubber composite material flame-retardant layer 26, the 3rd silicon rubber composite material flame-retardant layer 33, the 4th silicon rubber composite material flame-retardant layer 35 and the 5th silicon rubber composite material flame-retardant layer 6 adopt homemade same silicon rubber composite material, and this silicon rubber composite material according to the component of weight portion is: 45 parts, organic silicon rubber waste material, ammonium polyphosphate 25 parts, melamine 15 parts, pentaerythrite 25 parts, sepiolite powder 15 parts, medical stone powder 7.5 parts, nano-silicon nitride 7.5 parts, ferric pyrophosphate 5, silane coupler 5 parts.Described nano flame retardant insulating barrier 7 according to the component of weight portion is: water-borne acrylic resin 100 parts, nanometer nitrogen-phosphorus expansion fire retardant 6 parts, nm-class boron nitride 6 parts, nano silicon oxide 6 parts, nano mesoporous molecular screen 6 parts, promoter 5.5 parts, 1 part, plasticizer, 2.5 parts, age resistor.
Fire prevention experiment:
1. the examining report that the fire-type Internet of Things bus cable that prepared by pair above-described embodiment carries out special experiment is taken passages as follows:
| Sequence number | Britain BS6387 standard | Standard-required | Result |
| 1 | A level | 650 DEG C by after fiery 3h, circuit keeps complete | Qualified |
| 2 | X level | 650 DEG C by fire, after mechanical shock 15min, circuit keeps complete | Qualified |
| 3 | B level | 750 DEG C by after fiery 3h, circuit keeps complete | Qualified |
| 4 | Y level | 750 DEG C by fire, after mechanical shock 15min, circuit keeps complete | Qualified |
| 5 | C level | 950 DEG C by after fiery 3h, circuit keeps complete | Qualified |
| 6 | Z level | 950 DEG C by fire, after mechanical shock 15min, circuit keeps complete | Qualified |
| 7 | W level | 650 DEG C by after fiery 15min, Water spray 15min, circuit keeps complete | Qualified |
2. pair this product carry out type approval test examining report take passages as follows:
Visible, the fire resistance test of the fire-type Internet of Things bus cable of the present invention's design not only meets the requirement of GB GB/T19216, apply 1000V voltage between the conductors, be the 3h that burns in the flame of 950-1000 DEG C in flame temperature, cable neither short circuit is not also opened a way.Also can meet the requirement of A level, B level and the C level specified in Britain BS6387 standard, meanwhile, in burning, also can tolerate Water spray (W level) impact (X level, Y level, Z level) with resistance to mechanical; In process of the test, cable neither short circuit is not also opened a way.
The fire-retardant category-A of this cable fulfils, be fire-retardant highest level, namely anti-flammability in order to extinguish, reducing or suppress the burning of material, adds fire retardant usually in the material, makes material have the performance stoping or delay propagation of flame when burning.When burning things which may cause a fire disaster disappears outside, through can certainly put out after a while.For reaching fire-retardant category-A requirement; in structural design; adopt the materials such as ceramic fibre fire resistant belt, fire-retardant oversheath and homemade silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and flame-retardant filler to carry out multiple protective, the comprehensive mechanical of product is formed and significantly improves.
Comparative example 1
In the present embodiment, the preparation method of described Internet of Things bus cable is identical with embodiment; And in the present embodiment, described first flame-retardant filler 25, second flame-retardant filler 34 and the 3rd flame-retardant filler 4 are homemade same flame-retardant filler, and this flame-retardant filler according to the component of weight portion is: micron order kaolin 200 parts, ethylene-vinyl acetate copolymer 150 parts, polyether modified silicon oil 75 parts, 20 parts, glass fibre, tin acetate 4 parts.Described first silicon rubber composite material flame-retardant layer 12, second silicon rubber composite material flame-retardant layer 26, the 3rd silicon rubber composite material flame-retardant layer 33, the 4th silicon rubber composite material flame-retardant layer 35 and the 5th silicon rubber composite material flame-retardant layer 6 adopt homemade same silicon rubber composite material, and this silicon rubber composite material according to the component of weight portion is: 45 parts, organic silicon rubber waste material, ammonium polyphosphate 25 parts, melamine 15 parts, pentaerythrite 25 parts, sepiolite powder 15 parts, nano-silicon nitride 7.5 parts, silane coupler 5 parts.Described nano flame retardant insulating barrier 7 according to the component of weight portion is: water-borne acrylic resin 100 parts, nanometer nitrogen-phosphorus expansion fire retardant 6 parts, nano silicon oxide 6 parts, promoter 5.5 parts, 1 part, plasticizer, 2.5 parts, age resistor.
Fire prevention experiment:
1. the examining report that the Internet of Things bus cable that prepared by pair above-described embodiment carries out special experiment is taken passages as follows:
| Sequence number | Britain BS6387 standard | Standard-required | Result |
| 1 | A level | 650 DEG C by after fiery 3h, circuit keeps complete | Qualified |
| 2 | X level | 650 DEG C by fire, after mechanical shock 15min, circuit keeps complete | Qualified |
| 3 | B level | 750 DEG C by after fiery 3h, circuit keeps complete | Qualified |
| 4 | Y level | 750 DEG C by fire, after mechanical shock 15min, circuit is imperfect | Defective |
| 5 | C level | 950 DEG C by after fiery 3h, circuit is imperfect | Defective |
| 6 | Z level | 950 DEG C by fire, after mechanical shock 15min, circuit is imperfect | Defective |
| 7 | W level | 650 DEG C by after fiery 15min, Water spray 15min, circuit is imperfect | Defective |
2. pair this product carry out type approval test examining report take passages as follows:
Visible, the carbon black in described flame-retardant filler 40 parts and 20 parts, asbestos; Medical stone powder in described silicon rubber composite material 7.5 parts and ferric pyrophosphate 5; Nm-class boron nitride in described nano flame retardant insulating barrier 6 parts and nano mesoporous molecular screen 6 parts serve good synergistic effect to respective material property.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (10)
1. a fire-type Internet of Things bus cable, it is characterized in that, comprise the bus cable inner core be made up of power transmission cable, optical cable and data cable, and the ceramic fibre fire resistant belt coated successively in the outside of bus cable inner core, the 5th silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and fire-retardant oversheath; The 3rd flame-retardant filler is filled with between bus cable inner core and ceramic fibre fire resistant belt; Described power transmission cable is provided with two or three, and every root power transmission cable is by the first conductor wire core and the first silicon rubber composite material flame-retardant layer of extruding in the first conductor wire core outside; Described optical cable comprises the first strengthening core being positioned at optical cable center, the second silicon rubber composite material flame-retardant layer being positioned at many fibre cores around the first strengthening core, being positioned at optical cable outside, and first flame-retardant filler of filling between fibre core and the second silicon rubber composite material flame-retardant layer; Every root fibre core is coated with covering and coat outward all successively; Described data cable comprises the second strengthening core being positioned at data cable center, the 4th silicon rubber composite material flame-retardant layer being positioned at many second conductor wire cores around the second strengthening core, being positioned at data cable outside, and second flame-retardant filler of filling between the second conductor wire core and the 4th silicon rubber composite material flame-retardant layer; Every root second conductor wire core has all extruded the 3rd silicon rubber composite material flame-retardant layer outward, and every two second conductor wire cores are to being twisted into one group;
Described first flame-retardant filler, the second flame-retardant filler and the 3rd flame-retardant filler are same flame-retardant filler, and this flame-retardant filler according to the component of weight portion is: micron order kaolin 150-250 part, ethylene-vinyl acetate copolymer 100-200 part, polyether modified silicon oil 50-100 part, carbon black 30-50 part, asbestos 15-25 part, glass fibre 15-25 part, tin acetate 2-6 part;
Described first silicon rubber composite material flame-retardant layer, second silicon rubber composite material flame-retardant layer, 3rd silicon rubber composite material flame-retardant layer, 4th silicon rubber composite material flame-retardant layer and the 5th silicon rubber composite material flame-retardant layer adopt same silicon rubber composite material, this silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 30-60 part, ammonium polyphosphate 20-30 part, melamine 10-20 part, pentaerythrite 20-30 part, sepiolite powder 10-20 part, medical stone powder 5-10 part, nano-silicon nitride 5-10 part, ferric pyrophosphate 2-8, silane coupler 2-8 part,
Described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 50-150 part, nanometer nitrogen-phosphorus expansion fire retardant 2-10 part, nm-class boron nitride 2-10 part, nano silicon oxide 2-10 part, nano mesoporous molecular screen 2-10 part, promoter 3-8 part, plasticizer 0.5-1.5 part, age resistor 1-4 part.
2. fire-type Internet of Things bus cable according to claim 1, it is characterized in that, described flame-retardant filler according to the component of weight portion is: micron order kaolin 180-220 part, ethylene-vinyl acetate copolymer 140-160 part, polyether modified silicon oil 70-80 part, carbon black 35-45 part, asbestos 18-22 part, glass fibre 18-22 part, tin acetate 3-5 part.
3. fire-type Internet of Things bus cable according to claim 1, it is characterized in that, described ceramic fibre fire resistant belt is bonded by one deck pottery silica gel and layer of glass, and thickness is 0.2-0.5mm, adjacent layer adopts two-way wrapped mode, every ply place apart windings.
4. fire-type Internet of Things bus cable according to claim 1, it is characterized in that, described silicon rubber composite material according to the component of weight portion is: organic silicon rubber waste material 40-50 part, ammonium polyphosphate 24-26 part, melamine 14-16 part, pentaerythrite 24-26 part, sepiolite powder 14-16 part, medical stone powder 7-8 part, nano-silicon nitride 7-8 part, ferric pyrophosphate 4-6 part, silane coupler 4-6 part.
5. fire-type Internet of Things bus cable according to claim 1, it is characterized in that, described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 80-120 part, nanometer nitrogen-phosphorus expansion fire retardant 5-7 part, nm-class boron nitride 5-7 part, nano silicon oxide 5-7 part, nano mesoporous molecular screen 5-7 part, promoter 4-6 part, plasticizer 0.8-1.2 part, age resistor 2-3 part.
6. according to the fire-type Internet of Things bus cable one of claim 1-5 Suo Shu, it is characterized in that, described flame-retardant filler according to the component of weight portion is: micron order kaolin 200 parts, ethylene-vinyl acetate copolymer 150 parts, polyether modified silicon oil 75 parts, carbon black 40 parts, 20 parts, asbestos, 20 parts, glass fibre, tin acetate 4 parts.
7. according to the fire-type Internet of Things bus cable one of claim 1-5 Suo Shu, it is characterized in that, described silicon rubber composite material according to the component of weight portion is: 45 parts, organic silicon rubber waste material, ammonium polyphosphate 25 parts, melamine 15 parts, pentaerythrite 25 parts, sepiolite powder 15 parts, medical stone powder 7.5 parts, nano-silicon nitride 7.5 parts, ferric pyrophosphate 5, silane coupler 5 parts.
8. according to the fire-type Internet of Things bus cable one of claim 1-5 Suo Shu, it is characterized in that, described nano flame retardant insulating barrier according to the component of weight portion is: water-borne acrylic resin 100 parts, nanometer nitrogen-phosphorus expansion fire retardant 6 parts, nm-class boron nitride 6 parts, nano silicon oxide 6 parts, nano mesoporous molecular screen 6 parts, promoter 5.5 parts, 1 part, plasticizer, 2.5 parts, age resistor.
9. fire-type Internet of Things bus cable according to claim 1, is characterized in that, described fire-retardant oversheath adopts low-smoke non-halogen flame-retardant high-strength abrasion-proof elastomer to make.
10. a preparation method for the fire-type Internet of Things bus cable as described in one of claim 1-9, concrete steps are:
(1) power transmission cable is made: adopt several conductor strand to become first conductor wire core, then outside the first conductor wire core, extrude the first silicon rubber composite material flame-retardant layer, namely obtain power transmission cable; For subsequent use;
(2) make optical cable: centered by the first strengthening core, around the first strengthening core, arrange that six roots of sensation outside is provided with the fibre core of covering and coat, make first total cable; Then adopt double-layer coextrusion technique at the first total cable outer cladding first flame-retardant filler and the second silicon rubber composite material flame-retardant layer, namely obtain optical cable; For subsequent use;
(3) make data cable: all extrude the 3rd silicon rubber composite material flame-retardant layer outward at the second conductor wire core, then by two second conductor wire cores to being twisted into one group; Again the second conductor wire core after four groups of pair twists is arranged in around the second strengthening core, makes second total cable; Then adopt double-layer coextrusion technique at the second total cable outer cladding second flame-retardant filler and the 4th silicon rubber composite material flame-retardant layer, namely obtain data cable; For subsequent use;
(4) by two or three power transmission cables to being twisted into one group, then be plied to the 3rd total cable with optical cable and data cable; Then at the 3rd total cable outer cladding the 3rd flame-retardant filler, then adopt around-packing technology at the outer wrapped ceramic fibre fire resistant belt of the 3rd flame-retardant filler; Adopt three-layer co-extruded technique again, at ceramic fibre fire resistant belt outer coated 5th silicon rubber composite material flame-retardant layer, nano flame retardant insulating barrier and fire-retardant oversheath successively from inside to outside; Namely fire-type Internet of Things bus cable is obtained.
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| CN201510610470.4A CN105161163A (en) | 2015-09-23 | 2015-09-23 | Fireproof internet of things (IOT) field bus cable and manufacturing method thereof |
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| CN201510610470.4A CN105161163A (en) | 2015-09-23 | 2015-09-23 | Fireproof internet of things (IOT) field bus cable and manufacturing method thereof |
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Application publication date: 20151216 |