CN110675977A - Novel flame-retardant weather-resistant cable - Google Patents
Novel flame-retardant weather-resistant cable Download PDFInfo
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- CN110675977A CN110675977A CN201911013931.4A CN201911013931A CN110675977A CN 110675977 A CN110675977 A CN 110675977A CN 201911013931 A CN201911013931 A CN 201911013931A CN 110675977 A CN110675977 A CN 110675977A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
The invention relates to a novel flame-retardant weather-resistant cable which comprises at least one conductive unit, a middle sheath layer and an outer sheath layer, wherein the middle sheath layer is coated outside the conductive unit, the outer sheath layer is coated outside the middle sheath layer, the conductive unit comprises a wire core, a mica layer and a fireproof insulating layer, the mica layer is coated outside the wire core, the fireproof insulating layer is coated outside the mica layer, and the outer sheath layer is prepared from polyethylene, ethylene-vinyl acetate copolymer, chlorosulfonated polyethylene and an intumescent flame retardant. The cable disclosed by the invention is low in smoke during combustion, and has strong flame retardance, weather resistance and ageing resistance.
Description
Technical Field
The invention relates to the field of wires and cables, in particular to a novel flame-retardant weather-resistant cable.
Background
With the improvement of the industrialization level in China, the use amount of wires and cables is rapidly increased, and the fire caused by wire and cable accidents is greatly increased. The investigation and statistics of the fire causes in recent years show that 60% -70% of fires are caused by accidents of electrical equipment, and most of the problems of the electrical equipment appear on electric wires and cables, so that the fire prevention problem of the electric wires and cables gradually draws high attention of domestic and foreign fire departments. In order to reduce the loss caused by fire of the electric wire and the cable, new varieties of flame-retardant cables, fire-resistant cables, low-smoke low-halogen flame-retardant cables, low-smoke zero-halogen flame-retardant electric wires and cables and the like are successively researched and developed. The electric wire and cable with the fireproof function are collectively called as fireproof cables, namely the fireproof cables refer to the electric wire and cable with the characteristic of directly or indirectly reducing the fire loss under the fire condition.
Flame retardant cables were one of the first fire resistant cable varieties developed. Has the following characteristics: the specimen is burnt under the specified conditions, and after the fire source is removed, the flame spread on the specimen is only limited within the specified range and can be self-extinguished, namely, the flame spread can be prevented or delayed. Therefore, under the condition of fire, the flame-retardant cable can effectively prevent flame from rapidly spreading along cable laying dense parts such as a cable groove, a cable shaft and the like so as to expand the fire range.
In the prior art, wires and cables are generally coated with polymer materials such as plastics, rubbers and the like, and typical flame retardant treatment methods thereof include the following methods:
(1) the most common flame-retardant treatment method is to use flame-retardant plastics and rubber containing halogen, especially fluorine, chlorine and bromine as the insulating layer and the sheath; by adopting the method, the biggest defect is that the electric wire and cable can generate a large amount of smoke under the condition of fire, so that the visibility of a fire scene is very low, trapped people can not see a fire fighting channel and an escape indication board clearly, even the visibility is reduced to a step which is difficult to find even when connecting with stairs, the escape of the people on the fire scene is difficult, and the casualties are greatly increased; and also affects fire scene search and rescue and fire fighting of firefighters due to low visibility. Fire statistics from the ministry of public Security in 1990 to 1997 show that: about 60% -80% of the people died from fire are fumigated by smoke rather than burned.
(2) Inorganic flame retardants are utilized. Such as mixing Al (OH)3、Mg(OH)2、ZnB4O7And phosphide and the like are added into a high molecular polymer to improve the flame retardant property of the high molecular polymer, and the method is more generally applied to halogen-free flame retardant cables. In the electricityWhen the cable material is processed, the addition of a large amount of inorganic flame retardant can cause the defects of uneven mixing and the like, thereby affecting the processing difficulty and the mechanical property of the cable material and affecting the quality of a finished product.
(3) Intumescent flame retardants are used. Intumescent flame retardants were first invented in the field of flame retardant coatings for the flame retardation of wood. In the eighties of the last century, professor camino in italy made intensive studies on intumescent flame retardants and applied them to general polymer materials. As is known, the acid source, the carbon source and the gas source of the intumescent flame retardant exist at the same time to exert good flame retardant efficiency, but the intumescent flame retardant has the disadvantages. In the prior art, an intumescent flame retardant system is often multi-component mixed, so that the phenomenon of uneven dispersion of each component in a polymer due to uneven mixing is easy to occur, and the flame retardant efficiency is reduced or the flame retardant result is unstable.
In addition, the cable is generally laid outdoors, especially in harsh environments such as strong ultraviolet irradiation or dark and humid environments, so increasing the weather resistance of the cable, especially the outer covering cable material, is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel flame-retardant weather-resistant cable, so that the cable is low in smoke during combustion and has strong flame-retardant, weather-resistant and ageing-resistant performances.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a novel fire-retardant resistant cable that waits, includes an at least conductive element, cladding well restrictive coating outside conductive element and cladding in the oversheath layer outside well restrictive coating, conductive element includes sinle silk, cladding mica layer, the fire prevention insulating layer of cladding outside the mica layer outside the sinle silk, its characterized in that the oversheath layer is prepared for the raw materials by polyethylene, ethylene-vinyl acetate copolymer, chlorosulfonated polyethylene and intumescent flame retardant.
Preferably, the mica layer is 2-4 layers.
Preferably, the fireproof insulating layer is made of halogen-free flame-retardant crosslinked polyethylene.
Preferably, the middle sheath layer contains a fireproof filler.
Preferably, the fireproof filler is a rock wool rope.
Preferably, the wire core is a copper conductor.
Preferably, the intumescent flame retardant is prepared by the following method:
(1) adding ethanol into 1- [3- (dimethoxymethylsilyl) propyl ] -piperazine, stirring uniformly, adding ammonium polyphosphate, stirring at reflux temperature to react until no ammonia gas is discharged, stopping heating, taking out a reaction product, and drying to obtain an intermediate for later use; the mass ratio of the 1- [3- (dimethoxymethylsilyl) propyl ] -piperazine to the ammonium polyphosphate is 1: 14-16;
(2) adding cyanuric chloride into tetrahydrofuran, stirring to fully dissolve cyanuric chloride, adding an intermediate, slowly dropwise adding an NaOH aqueous solution into the solution, reacting at 75 ℃ for 10 hours, filtering, taking a solid, washing and drying to obtain the cyanuric chloride aqueous solution; the mass ratio of the cyanuric chloride to the intermediate is 1: 4-6.
Preferably, the main raw materials for preparing the outer sheath layer are as follows by mass ratio: 100 parts of polyethylene, 80 parts of ethylene-vinyl acetate copolymer, 20 parts of chlorosulfonated polyethylene and 50 parts of intumescent flame retardant. After uniform mixing, mixing on a double-roller mixing roll at the mixing temperature of 120 ℃ and 150 ℃, continuously rolling and mixing for 20-30 min.
Preferably, a processing aid is further used in the preparation process of the outer sheath layer, and the processing aid comprises a lubricant and an antioxidant.
The beneficial technical effects of the invention are mainly embodied in the following aspects:
1. the cable provided by the invention has good flame retardant property.
2. The cable of the invention has less smoke during combustion.
3. The novel single-component intumescent flame retardant is adopted, so that the defect of uneven mixing of multiple components of the traditional intumescent flame retardant system can be effectively overcome.
4. By adopting the novel single-component intumescent flame retardant, the defect that ammonium polyphosphate in the traditional intumescent flame retardant system is easy to absorb water can be effectively overcome, and the waterproofness of the cable material is improved.
5. The novel single-component intumescent flame retardant is adopted, and silicon element is introduced into the branched chain of the flame retardant, so that the flame retardant effect and the mechanical strength of the cable material are enhanced.
6. The cable material used by the cable has stronger weather resistance and can effectively prevent aging.
The technical effects of the present invention can be demonstrated by the following tests.
Test example 1 Performance test of flame-retardant and weather-resistant Cable of the present invention
1.1 test methods
1.1.1 samples were prepared by the method of example 3.
1.1.2 methods and standards were tested according to the national Standard "fire-retardant and fire-resistant Cable general rules" (GB/T19666-2005).
1.2 test results
1.2.1 flame retardance
According to the single-core cable disclosed by the invention, the sample is burnt within a range of 50-540mm from the lower edge of the clamp, and the standard requirement is met.
According to the multi-core cable disclosed by the invention, after the supply of fire is stopped, the flaming combustion time on the sample is less than 1 hour, and the level of ZA (volume of nonmetallic material of the sample is 7L/m) and ZB (volume of nonmetallic material of the sample is 3.5L/m) are respectively reached, so that the multi-core cable meets the standard requirement.
1.2.2 Low Corrosion Performance
The weighted value of PH is more than or equal to 4.3, the weighted value of conductivity is less than or equal to 10 mu s/mm, and the standard requirements are met.
1.2.3 Low Smoke Performance
The minimum light transmittance is more than or equal to 60 percent and meets the standard requirement.
Test example 2 flame retardancy test of Cable Material for outer sheath layer of the present invention
2.1 test methods
2.1.1 samples
The cable material is self-prepared according to the embodiments 1 and 2, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 3 mm. And punching by a punching machine to obtain UL94 vertical burning sample strips and LOI sample strips.
The inorganic flame-retardant cable material is self-prepared according to the comparative example 1, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 3 mm. And punching by a punching machine to obtain UL94 vertical burning sample strips and LOI sample strips.
The traditional intumescent flame-retardant cable material is self-prepared according to comparative example 2, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 3 mm. And punching by a punching machine to obtain UL94 vertical burning sample strips and LOI sample strips.
2.1.2 methods
Limiting Oxygen Index (LOI) measured on an oxygen index measuring instrument using ASTM D2863 standard, size 100 ＊ 65 ＊ 3mm3。
Vertical burning test measured on a horizontal vertical burning test apparatus in accordance with UL94 Standard, dimension 130 ＊ 65 ＊ 3mm3。
2.2 results
The test results are shown in Table 1, and the results show that the vertical combustion test of the cable material reaches UL 94V-0 level, the limiting oxygen index reaches 32%, and both flame retardant indexes are superior to those of the comparative cable material.
Table 1 flame retardant property test of cable material for outer sheath layer of the present invention
Test example 3 test of water resistance of Cable Material for outer sheath layer of the present invention
3.1 test methods
3.1.1 samples
The cable material is prepared by the method of embodiment 2, and is co-extruded on a single copper conductor as a test lead before testing, wherein the sectional area of the copper conductor is 1.5mm2And the thickness of the cable material layer is 0.7 mm.
The traditional intumescent flame-retardant cable material is 3.1.1 'the cable material of the invention' except that the cable material is self-prepared according to the comparative example 2.
3.1.2 methods
In the water immersion test, 5m of each sample to be tested was immersed in water (water temperature 25. + -. 2 ℃ C., relative humidity 47-55%) and both ends thereof were exposed to the water surface by 0.25m, the insulation resistance value (initial value) at the initial water entry was measured, and the insulation resistance was measured every 24 hours thereafter at a test voltage of DC 600V.
3.2 results
The test results are shown in table 2, and the results show that the cable material of the invention has good waterproof performance, the insulation resistance after 120 hours of water immersion has little change compared with the initial value, and the performance of the cable material is superior to that of a comparative cable material.
Table 2 test of waterproof property of cable material for outer sheath layer of the present invention
Test example 4 weather resistance test of Cable Material for outer sheath layer of the present invention
4.1 test methods
4.1.1 samples
The cable material is self-prepared according to the embodiments 1 and 2, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 1 mm.
The inorganic flame-retardant cable material is self-prepared according to the comparative example 1, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 1 mm.
The traditional intumescent flame-retardant cable material is self-prepared according to comparative example 2, and is subjected to hot press molding by a flat vulcanizing machine to prepare a sample plate with the thickness of 1 mm.
4.1.2 methods
Placing the sample plate in a xenon lamp aging machine, and carrying out artificial accelerated aging for 500 hours according to the method A in ISO4892.2, wherein the test conditions are as follows: the temperature of the blackboard is 60 ℃, the relative humidity is 50 percent, and the temperature of the box body is 50 ℃. The tensile properties before and after aging were tested according to the specification of GB/T1040.2, the tensile rate was 100 mm/min.
4.2 results
The test results are shown in table 3, and the results show that the mechanical properties of the cable material still keep good after artificial accelerated aging. The results also show that the weather resistance of the cable material of the invention is superior to that of the comparative cable material.
TABLE 3 weather resistance test of Cable Material for outer sheath layer of the present invention
| The cable material of the invention | Inorganic flame-retardant cable material | Traditional expansion flame-retardant cable material | |
| Tensile Strength before aging (MPa) | 26.28 | 23.97 | 24.32 |
| Tensile Strength holding ratio (%) | 88.94 | 79.65 | 81.27 |
| Tensile elongation retention (%) | 90.32 | 81.33 | 84.36 |
Drawings
FIG. 1 is a schematic view of a cross-sectional structure of a novel flame-retardant weatherable cable (with multiple cores)
FIG. 2 is a schematic cross-sectional view of a conductive unit
FIG. 3 is a schematic cross-sectional view of the middle sheath layer in one embodiment
FIG. 4 is a schematic view of a cross-sectional structure of a novel flame-retardant weatherable cable (single core)
Wherein: the cable comprises a conductive unit 1, a cable core 11, a mica layer 12, a fireproof insulating layer 13, a middle sheath layer 2, a rock wool rope 21, a flame-retardant wrapping tape 22 and an outer sheath layer 3.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent.
It will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
It should be noted that the "sheath" in the claims and the specification should not be limited to concentric sheath, especially in some embodiments of the multi-core cable, the sheath layer and the fireproof insulating layer are not strictly concentric sheath.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
EXAMPLE 1 preparation of intumescent flame retardant
Adding 1- [3- (dimethoxymethylsilyl) propyl ] -piperazine 5.0g into a 250mL four-neck bottle, adding ethanol 100mL, stirring uniformly, adding ammonium polyphosphate 80g, stirring at reflux temperature for reaction until no ammonia gas is discharged, stopping heating, taking out a small amount of reaction product, and drying to obtain an intermediate product, namely an intermediate product;
3.25g of cyanuric chloride and 100mL of tetrahydrofuran are weighed and added into a 250mL four-neck flask at one time, stirred to be fully dissolved, 15g of intermediate is added, 2.0g of NaOH is weighed and dissolved in 60mL of distilled water to be used as an acid-binding agent, the solution is slowly dripped into the solution, and the reaction is carried out for 10 hours at 75 ℃. Then filtering, washing and drying to obtain the product.
Example 2 preparation of outer jacket layer Cable Material
100 parts of polyethylene, 80 parts of ethylene-vinyl acetate copolymer, 20 parts of chlorosulfonated polyethylene and 50 parts of intumescent flame retardant (prepared according to example 1). After uniform mixing, mixing on a double-roller mixing roll at the mixing temperature of 120 ℃ and 150 ℃, continuously rolling and mixing for 20-30 min.
The cable material can be coated on the outer layer of the cable blank by conventional means such as co-extrusion, salivation and the like, and specific process selection can be made by a person skilled in the art according to the actual process environment, which is not described herein any more.
Comparative example 1 Cable material with inorganic flame retardant
Except that "intumescent flame retardant" is replaced by "Al (OH)3、Mg(OH)2Mixture (1: 1 mass ratio of the two) "is the same as in example 2.
Comparative example 2 Cable material with traditional intumescent flame retardant
Example 2 was followed except that "the intumescent flame retardant" was replaced with "a mixture of ammonium polyphosphate and polyurethane (mass ratio of 1: 2)".
Example 3 novel flame retardant weatherable Cable
The utility model provides a novel fire-retardant resistant cable that waits, an at least conductive element 1, cladding well restrictive coating 2 outside the conductive element and cladding oversheath layer 3 outside well restrictive coating, conductive element includes sinle silk 11, cladding mica layer 12, the fire prevention insulating layer 13 of cladding outside the mica layer outside the sinle silk.
The core 11 of the flame retardant and weather resistant cable of the present invention may be one to several, and in some embodiments, the core of the cable is 2 to 3.
The wire core 11 is made of a conductor material, and can be a single conductor or formed by twisting a plurality of conductors. The material of the conductor may be selected according to the particular operating environment. In some embodiments, a copper conductor is preferred.
Mica belongs to an insulating product and has excellent high-temperature resistance and combustion resistance. In some embodiments, the mica may be formed into a mica tape wrapped around the conductor to form the mica layer 12. The number of mica layers may be selected according to the specific working environment, and in some embodiments, 2-4 layers may achieve better technical effects.
In the cable of the present invention, the fireproof insulating layer 13 mainly plays two roles of fireproof and insulation, and the specific implementation can be selected by those skilled in the art according to the actual situation. In some embodiments, the halogen-free flame retardant crosslinked polyethylene is used as the main material of the fireproof insulation layer to achieve better technical effects. Further, in some embodiments, the fire-resistant insulating layer may be made of the same material as the outer sheath layer.
In the cable of the invention, the middle sheath layer 2 mainly plays a role in flame retardance and can adjust the mechanical property of the cable. For better technical effect, the middle sheath layer 4 may include fire-proof filling material, such as fire-proof mud. In some embodiments, the middle sheath layer is mainly composed of rock wool rope 21 and flame-retardant wrapping tape 22 which are used as fireproof filling materials. The rock wool rope which is used for filling and is extremely difficult to burn is prepared by taking glass fiber as a main raw material through surface treatment and special mechanical cabling, and has the characteristics of strong flame retardance, high oxygen index and the like. Therefore, when the rock wool rope is adopted for filling, the relative position of the insulated wire core in the cable is more stable, the cable is ensured to have better roundness, the tensile strength of the cable is increased, and the low-smoke halogen-free and flame-retardant characteristics of the cable are also ensured. In a single core cable (as shown in fig. 4), the middle sheath layer may be concentrically wrapped with the fire-resistant insulation layer. In a multi-core cable (as shown in fig. 1), the middle sheath layer and the fireproof insulation layer of each core are not strictly concentric.
The cable material used for the cable outer sheath layer 3 of the present invention has good flame retardant, low smoke, weather resistance and aging resistance, and the specific technical features and technical effects thereof are disclosed in the foregoing test examples and examples 1 and 2, and are not described herein again.
It should be understood that the above examples are only for clearly illustrating the technical solutions and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a novel fire-retardant resistant cable that waits, includes an at least conductive element, cladding well restrictive coating outside conductive element and cladding in the oversheath layer outside well restrictive coating, conductive element includes sinle silk, cladding mica layer, the fire prevention insulating layer of cladding outside the mica layer outside the sinle silk, its characterized in that the oversheath layer is prepared for the raw materials by polyethylene, ethylene-vinyl acetate copolymer, chlorosulfonated polyethylene and intumescent flame retardant.
2. The novel flame-retardant and weather-resistant cable according to claim 1, wherein the mica layer is 2-4 layers.
3. The novel flame-retardant weatherable cable according to claim 2, wherein the material of the fire-proof insulating layer is halogen-free flame-retardant crosslinked polyethylene.
4. The novel flame-retardant weatherable cable according to claim 3, wherein said middle sheath layer contains a fire-retardant filler.
5. The novel flame-retardant weatherable cable according to claim 4, wherein the fire-retardant filler is rock wool.
6. The novel flame-retardant weatherable cable according to claim 5, wherein said core is a copper conductor.
7. The new flame retardant weatherable cable according to any one of claims 1 to 6, characterized in that said intumescent flame retardant is prepared by the following method:
(1) adding ethanol into 1- [3- (dimethoxymethylsilyl) propyl ] -piperazine, stirring uniformly, adding ammonium polyphosphate, stirring at reflux temperature to react until no ammonia gas is discharged, stopping heating, taking out a reaction product, and drying to obtain an intermediate for later use; the mass ratio of the 1- [3- (dimethoxymethylsilyl) propyl ] -piperazine to the ammonium polyphosphate is 1: 14-16;
(2) adding cyanuric chloride into tetrahydrofuran, stirring to fully dissolve cyanuric chloride, adding an intermediate, slowly dropwise adding an NaOH aqueous solution into the solution, reacting at 75 ℃ for 10 hours, filtering, taking a solid, washing and drying to obtain the cyanuric chloride aqueous solution; the mass ratio of the cyanuric chloride to the intermediate is 1: 4-6.
8. The novel flame-retardant weather-resistant cable according to claim 7, wherein the raw materials for preparing the outer sheath layer comprise the following components in percentage by mass: 100 parts of polyethylene, 80 parts of ethylene-vinyl acetate copolymer, 20 parts of chlorosulfonated polyethylene and 50 parts of intumescent flame retardant.
9. The novel flame-retardant and weather-resistant cable according to claim 8, wherein processing aids are further used in the preparation of the outer sheath layer, and the processing aids comprise lubricants and antioxidants.
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| CN109161208A (en) * | 2018-07-18 | 2019-01-08 | 曹佳男 | A kind of high fire-retardance corrosion proof cable material and preparation method thereof |
| CN109181003A (en) * | 2018-08-06 | 2019-01-11 | 台启龙 | The preparation method of Flame-retardant low-smoke functional master batch and the functional master batch |
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2019
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|---|---|---|---|---|
| CN202042238U (en) * | 2011-03-30 | 2011-11-16 | 绿宝电缆（集团）有限公司 | Marine fire-resisting power cable with cross-linked polyolefin protecting jackets |
| CN104592697A (en) * | 2014-12-31 | 2015-05-06 | 四川大学 | Low-density and high-flame-retardant composite porous material and preparation method and application thereof |
| CN105504344A (en) * | 2015-12-23 | 2016-04-20 | 中国科学院宁波材料技术与工程研究所 | Clay with catalytic flame retardation function and preparation method of clay |
| CN108484919A (en) * | 2018-05-14 | 2018-09-04 | 苏州安鸿泰新材料有限公司 | A kind of phosphorous macromolecular fire retardant and preparation method thereof |
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Inventor after: Wang Junyi Inventor after: Jiang Jing Inventor after: Zhang Qianping Inventor after: Shi Jiehong Inventor before: Wang Junyi Inventor before: Jiang Jing Inventor before: Shi Jiehong Inventor before: Liu Wen |
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Effective date of registration: 20200601 Address after: 214000 Zone C, industrial park, Guanlin Town, Yixing City, Wuxi City, Jiangsu Province Applicant after: WUXI YUDE CABLE TECHNOLOGY Co.,Ltd. Applicant after: JIANGSU YUANCHENG CABLE Co.,Ltd. Address before: 214000 Zone C, industrial park, Guanlin Town, Yixing City, Wuxi City, Jiangsu Province Applicant before: WUXI YUDE CABLE TECHNOLOGY Co.,Ltd. |
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Application publication date: 20200110 |
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