CN105199270A - Flame-retardant sheath material for electric wire and preparation method thereof - Google Patents
Flame-retardant sheath material for electric wire and preparation method thereof Download PDFInfo
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- CN105199270A CN105199270A CN201510705334.3A CN201510705334A CN105199270A CN 105199270 A CN105199270 A CN 105199270A CN 201510705334 A CN201510705334 A CN 201510705334A CN 105199270 A CN105199270 A CN 105199270A
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Abstract
The invention discloses a flame-retardant sheath material for an electric wire. The flame-retardant sheath material is prepared from the following raw materials by weight: 60 to 75 parts of polyvinylidene fluoride, 27 to 40 parts of chloroprene rubber, 18 to 30 parts of methyl vinyl silicone rubber, 5 to 16 parts of tris(2-ethylhexyl) trimellitate, 3 to 15 parts of isodecyl myristate, 4 to 13 parts of dioctyltin, 4 to 10 parts of zirconia, 2 to 11 parts of silicon carbide, 3 to 10 parts of magnesium carbonate, 5 to 12 parts of heavy calcium carbonate, 3 to 10 parts of asbestos fiber, 1 to 7 parts of petalite and 1 to 5 parts of dibutyl maleate. The invention also discloses a preparation method for the flame-retardant sheath material. The flame-retardant sheath material for the electric wire in the invention has good flame retardation according with requirements of the cable industry on flame retardation. Moreover, the sheath material prepared in the invention has high tensile strength and meets demands of practical application.
Description
Technical field
The invention belongs to electric wire and cable material field, particularly a kind of flame retardant type Sheath material for electric wire and preparation method thereof.
Background technology
Electric wire is conveying electricity (magnetic) energy, transmission information and the wire product realizing electromagnetic energy conversion, is widely used in national economy every field, is called " blood vessel " and " nerve " of national economy.Electric wire production is one of supporting industry maximum in national economy, and be the second largest industry being only second to automobile industry in machinery industry, electric wire product is widely used in the industries such as electric power, the energy, traffic, communication, automobile and petrochemical complex.
Current electric wire is all provided with protective layer protection outward, i.e. so-called " sheath ".But electric wire and cable jacket material on the market also still exists the problems such as physical strength is low, high thermal resistance is poor, more seriously electric wire and cable jacket material easily burns mostly, and even initiation fire brings potential safety hazard.
Summary of the invention
The technical problem solved is: in order to reduce the easy firing performance of Sheath material for electric wire, reduce or avoid the danger of initiation fire, provides a kind of flame retardant type Sheath material for electric wire and preparation method thereof.
Technical scheme: in order to solve the problem, the invention provides a kind of flame retardant type Sheath material for electric wire, is prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 60 ~ 75 parts, chloroprene rubber 27 ~ 40 parts, methyl vinyl silicone rubber 18 ~ 30 parts, tri trimellitate (2-ethylhexyl) 5 ~ 16 parts, tetradecanoic acid isodecyl ester 3 ~ 15 parts, dioctyl tin 4 ~ 13 parts, zirconium white 4 ~ 10 parts, 2 ~ 11 parts, silicon carbide, 3 ~ 10 parts, magnesiumcarbonate, water-ground limestone 5 ~ 12 parts, fibrous magnesium silicate 3 ~ 10 parts, petalite 1 ~ 7 part and dibutyl maleinate 1 ~ 5 part.
Preferably, a kind of flame retardant type Sheath material for electric wire, is prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 68 ~ 75 parts, chloroprene rubber 27 ~ 32 parts, methyl vinyl silicone rubber 20 ~ 30 parts, tri trimellitate (2-ethylhexyl) 8 ~ 16 parts, tetradecanoic acid isodecyl ester 4 ~ 15 parts, dioctyl tin 4 ~ 9 parts, zirconium white 6 ~ 10 parts, 5 ~ 11 parts, silicon carbide, 3 ~ 8 parts, magnesiumcarbonate, water-ground limestone 7 ~ 12 parts, fibrous magnesium silicate 3 ~ 10 parts, petalite 2 ~ 7 parts and dibutyl maleinate 1 ~ 5 part.
Further, preferably, a kind of flame retardant type Sheath material for electric wire, is prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 73 parts, chloroprene rubber 30 parts, methyl vinyl silicone rubber 24 parts, tri trimellitate (2-ethylhexyl) 14 parts, tetradecanoic acid isodecyl ester 9 parts, dioctyl tin 6 parts, zirconium white 6 parts, 8 parts, silicon carbide, 5 parts, magnesiumcarbonate, water-ground limestone 9 parts, fibrous magnesium silicate 6 parts, petalite 4 parts and dibutyl maleinate 2 parts.
The preparation method of a kind of flame retardant type Sheath material for electric wire described above, comprises the steps:
(1) by weight, 60 ~ 75 parts of polyvinylidene difluoride (PVDF), 27 ~ 40 parts of chloroprene rubbers and 18 ~ 30 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 100 ~ 130 DEG C, the banburying time is be cooled to room temperature after 15 ~ 30min;
(2) by weight, 4 ~ 10 parts of zirconium whites, 2 ~ 11 parts of silicon carbide, 3 ~ 10 parts of magnesiumcarbonate, 5 ~ 12 parts of water-ground limestones, 3 ~ 10 parts of fibrous magnesium silicates and 1 ~ 7 part of petalite are placed in high-speed mixer, at 80 ~ 120 DEG C, carry out first time stir, then cooled material in 5 ~ 16 parts of tri trimellitates (2-ethylhexyl), 3 ~ 15 parts of tetradecanoic acid isodecyl esters, 4 ~ 13 parts of dioctyl tins, 1 ~ 5 part of dibutyl maleinate and steps (1) is added, at 120 ~ 150 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 110 ~ 130 DEG C of mill thin-passes process 2 ~ 7 times, then drops into extruding pelletization in twin screw extruder.
Preferably, the extrusion condition in described step (3) in twin screw extruder is: extrusion temperature is 210 ~ 260 DEG C, and extruded velocity is 280r/min.
Preferably, the banburying temperature in described step (1) is 110 DEG C, and the banburying time is 18min.
Preferably, in described step (2), the temperature of first time stirring is 95 DEG C; The temperature that second time stirs is 140 DEG C.
The present invention has following beneficial effect: the flame-retarding characteristic of the Sheath material for electric wire prepared by the present invention is good, meets the requirement of the flame-retarding characteristic of cable industry.In addition, the tensile strength of prepared Sheath material for electric wire is also higher, meets practical application request.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, invention preferred embodiment is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
Embodiment 1
A preparation method for flame retardant type Sheath material for electric wire, comprises the steps:
(1) by weight, 60 parts of polyvinylidene difluoride (PVDF), 27 parts of chloroprene rubbers and 18 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 100 DEG C, the banburying time is be cooled to room temperature after 15min;
(2) by weight, 4 parts of zirconium whites, 2 parts of silicon carbide, 3 parts of magnesiumcarbonate, 5 parts of water-ground limestones, 3 parts of fibrous magnesium silicates and 1 part of petalite are placed in high-speed mixer, at 80 DEG C, carry out first time stir, then cooled material in 5 parts of tri trimellitates (2-ethylhexyl), 3 parts of tetradecanoic acid isodecyl esters, 4 parts of dioctyl tins, 1 part of dibutyl maleinate and steps (1) is added, at 120 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 110 DEG C of mill thin-passes process 2 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 210 DEG C, and extruded velocity is 280r/min.
Embodiment 2
A preparation method for flame retardant type Sheath material for electric wire, comprises the steps:
(1) by weight, 75 parts of polyvinylidene difluoride (PVDF), 40 parts of chloroprene rubbers and 30 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 130 DEG C, the banburying time is be cooled to room temperature after 30min;
(2) by weight, 10 parts of zirconium whites, 11 parts of silicon carbide, 10 parts of magnesiumcarbonate, 12 parts of water-ground limestones, 10 parts of fibrous magnesium silicates and 7 parts of petalites are placed in high-speed mixer, at 120 DEG C, carry out first time stir, then cooled material in 16 parts of tri trimellitates (2-ethylhexyl), 15 parts of tetradecanoic acid isodecyl esters, 13 parts of dioctyl tins, 5 parts of dibutyl maleinates and steps (1) is added, at 150 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 130 DEG C of mill thin-passes process 7 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 260 DEG C, and extruded velocity is 280r/min.
Embodiment 3
A preparation method for flame retardant type Sheath material for electric wire, comprises the steps:
(1) by weight, 67 parts of polyvinylidene difluoride (PVDF), 33 parts of chloroprene rubbers and 24 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 115 DEG C, the banburying time is be cooled to room temperature after 20min;
(2) by weight, 7 parts of zirconium whites, 6 parts of silicon carbide, 7 parts of magnesiumcarbonate, 8 parts of water-ground limestones, 6 parts of fibrous magnesium silicates and 4 parts of petalites are placed in high-speed mixer, at 100 DEG C, carry out first time stir, then cooled material in 10 parts of tri trimellitates (2-ethylhexyl), 9 parts of tetradecanoic acid isodecyl esters, 8 parts of dioctyl tins, 3 parts of dibutyl maleinates and steps (1) is added, at 135 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 120 DEG C of mill thin-passes process 4 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 235 DEG C, and extruded velocity is 280r/min.
Embodiment 4
A preparation method for flame retardant type Sheath material for electric wire, comprises the steps:
(1) by weight, 68 parts of polyvinylidene difluoride (PVDF), 32 parts of chloroprene rubbers and 20 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 115 DEG C, the banburying time is be cooled to room temperature after 20min;
(2) by weight, 6 parts of zirconium whites, 5 parts of silicon carbide, 8 parts of magnesiumcarbonate, 7 parts of water-ground limestones, 4 parts of fibrous magnesium silicates and 2 parts of petalites are placed in high-speed mixer, at 98 DEG C, carry out first time stir, then cooled material in 8 parts of tri trimellitates (2-ethylhexyl), 4 parts of tetradecanoic acid isodecyl esters, 9 parts of dioctyl tins, 2 parts of dibutyl maleinates and steps (1) is added, at 120 ~ 150 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 110 ~ 130 DEG C of mill thin-passes process 2 ~ 7 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 240 DEG C, and extruded velocity is 280r/min.
Embodiment 5
A preparation method for flame retardant type Sheath material for electric wire, comprises the steps:
(1) by weight, 73 parts of polyvinylidene difluoride (PVDF), 30 parts of chloroprene rubbers and 24 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 110 DEG C, the banburying time is be cooled to room temperature after 18min;
(2) by weight, 6 parts of zirconium whites, 8 parts of silicon carbide, 5 parts of magnesiumcarbonate, 9 parts of water-ground limestones, 6 parts of fibrous magnesium silicates and 4 parts of petalites are placed in high-speed mixer, at 95 DEG C, carry out first time stir, then cooled material in 14 parts of tri trimellitates (2-ethylhexyl), 9 parts of tetradecanoic acid isodecyl esters, 6 parts of dioctyl tins, 2 parts of dibutyl maleinates and steps (1) is added, at 140 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 120 DEG C of mill thin-passes process 6 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 230 DEG C, and extruded velocity is 280r/min.
Comparative example
A preparation method for Sheath material for electric wire, comprises the steps:
(1) by weight, 67 parts of polyvinylidene difluoride (PVDF), 33 parts of chloroprene rubbers and 24 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 115 DEG C, the banburying time is be cooled to room temperature after 20min;
(2) by weight, 7 parts of zirconium whites, 6 parts of silicon carbide and 8 parts of water-ground limestones are placed in high-speed mixer, at 100 DEG C, carry out first time stir, then cooled material in 10 parts of tri trimellitates (2-ethylhexyl), 9 parts of tetradecanoic acid isodecyl esters, 8 parts of dioctyl tins, 3 parts of dibutyl maleinates and steps (1) is added, at 135 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 120 DEG C of mill thin-passes process 4 times, then drops into extruding pelletization in twin screw extruder, wherein extrusion condition is: extrusion temperature is 235 DEG C, and extruded velocity is 280r/min.
Performance test
Below the various performances of the Sheath material for electric wire prepared by embodiment 1 ~ 5 and comparative example are tested, refer to following table:
Upper table result display, compared to comparative example, the flame-retarding characteristic of the Sheath material for electric wire prepared by embodiment 1 ~ 5 is good, meets the requirement of the flame-retarding characteristic of cable industry.In addition, the tensile strength of Sheath material for electric wire prepared in embodiment is also higher, meets practical application request.
Claims (7)
1. a flame retardant type Sheath material for electric wire, is characterized in that, is prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 60 ~ 75 parts, chloroprene rubber 27 ~ 40 parts, methyl vinyl silicone rubber 18 ~ 30 parts, tri trimellitate (2-ethylhexyl) 5 ~ 16 parts, tetradecanoic acid isodecyl ester 3 ~ 15 parts, dioctyl tin 4 ~ 13 parts, zirconium white 4 ~ 10 parts, 2 ~ 11 parts, silicon carbide, 3 ~ 10 parts, magnesiumcarbonate, water-ground limestone 5 ~ 12 parts, fibrous magnesium silicate 3 ~ 10 parts, petalite 1 ~ 7 part and dibutyl maleinate 1 ~ 5 part.
2. a kind of flame retardant type Sheath material for electric wire according to claim 1, is characterized in that, be prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 68 ~ 75 parts, chloroprene rubber 27 ~ 32 parts, methyl vinyl silicone rubber 20 ~ 30 parts, tri trimellitate (2-ethylhexyl) 8 ~ 16 parts, tetradecanoic acid isodecyl ester 4 ~ 15 parts, dioctyl tin 4 ~ 9 parts, zirconium white 6 ~ 10 parts, 5 ~ 11 parts, silicon carbide, 3 ~ 8 parts, magnesiumcarbonate, water-ground limestone 7 ~ 12 parts, fibrous magnesium silicate 3 ~ 10 parts, petalite 2 ~ 7 parts and dibutyl maleinate 1 ~ 5 part.
3. a kind of flame retardant type Sheath material for electric wire according to claim 1, is characterized in that, be prepared from by following raw material, counts by weight:
Polyvinylidene difluoride (PVDF) 73 parts, chloroprene rubber 30 parts, methyl vinyl silicone rubber 24 parts, tri trimellitate (2-ethylhexyl) 14 parts, tetradecanoic acid isodecyl ester 9 parts, dioctyl tin 6 parts, zirconium white 6 parts, 8 parts, silicon carbide, 5 parts, magnesiumcarbonate, water-ground limestone 9 parts, fibrous magnesium silicate 6 parts, petalite 4 parts and dibutyl maleinate 2 parts.
4. a preparation method for flame retardant type Sheath material for electric wire, is characterized in that, comprises the steps:
(1) by weight, 60 ~ 75 parts of polyvinylidene difluoride (PVDF), 27 ~ 40 parts of chloroprene rubbers and 18 ~ 30 parts of methyl vinyl silicone rubbers are placed in Banbury mixer, keep banburying temperature to be 100 ~ 130 DEG C, the banburying time is be cooled to room temperature after 15 ~ 30min;
(2) by weight, 4 ~ 10 parts of zirconium whites, 2 ~ 11 parts of silicon carbide, 3 ~ 10 parts of magnesiumcarbonate, 5 ~ 12 parts of water-ground limestones, 3 ~ 10 parts of fibrous magnesium silicates and 1 ~ 7 part of petalite are placed in high-speed mixer, at 80 ~ 120 DEG C, carry out first time stir, then cooled material in 5 ~ 16 parts of tri trimellitates (2-ethylhexyl), 3 ~ 15 parts of tetradecanoic acid isodecyl esters, 4 ~ 13 parts of dioctyl tins, 1 ~ 5 part of dibutyl maleinate and steps (1) is added, at 120 ~ 150 DEG C, carry out second time stir, obtain compound;
(3) compound in step (2) is placed in 110 ~ 130 DEG C of mill thin-passes process 2 ~ 7 times, then drops into extruding pelletization in twin screw extruder.
5. the preparation method of a kind of flame retardant type Sheath material for electric wire according to claim 4, is characterized in that, the extrusion condition in described step (3) in twin screw extruder is: extrusion temperature is 210 ~ 260 DEG C, and extruded velocity is 280r/min.
6. the preparation method of a kind of flame retardant type Sheath material for electric wire according to claim 4, is characterized in that, the banburying temperature in described step (1) is 110 DEG C, and the banburying time is 18min.
7. the preparation method of a kind of flame retardant type Sheath material for electric wire according to claim 4, is characterized in that, in described step (2), the temperature of first time stirring is 95 DEG C; The temperature that second time stirs is 140 DEG C.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575469A (en) * | 2016-02-03 | 2016-05-11 | 安徽华海特种电缆集团有限公司 | High temperature resistant cable |
| CN105754352A (en) * | 2016-05-12 | 2016-07-13 | 王维娜 | Flame-retardant fire-resistant power cable material and preparation method thereof |
| CN105860173A (en) * | 2016-04-15 | 2016-08-17 | 宿松县焕然机电有限责任公司 | High-flexibility abrasion-resistant material special for motor slot wedge |
| CN105885150A (en) * | 2016-05-18 | 2016-08-24 | 无为县金华电缆材料有限公司 | High-temperature resistant environment-friendly cable rubber layer formula |
| CN112088189A (en) * | 2018-05-08 | 2020-12-15 | 积水富乐株式会社 | Synthetic resin composition, refractory, sealing material, adhesive, and joint structure |
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| CN101613504A (en) * | 2009-07-24 | 2009-12-30 | 青岛中阳消防科技有限公司 | A kind of material and preparation method with temperature sensing cable material of CRT characteristic |
| CN103289415A (en) * | 2013-05-06 | 2013-09-11 | 安徽格林生态高分子材料技术有限公司 | Cable sheath material containing modified methyl vinyl silicone rubber and preparation method thereof |
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2015
- 2015-10-27 CN CN201510705334.3A patent/CN105199270A/en active Pending
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| WO2005111140A1 (en) * | 2004-05-17 | 2005-11-24 | Daikin Industries, Ltd. | Thermoplastic polymer composition |
| CN1629215A (en) * | 2004-10-28 | 2005-06-22 | 复旦大学 | Temperature sensing material with negative temperature coefficient effect and method for preparing same |
| CN101613504A (en) * | 2009-07-24 | 2009-12-30 | 青岛中阳消防科技有限公司 | A kind of material and preparation method with temperature sensing cable material of CRT characteristic |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105575469A (en) * | 2016-02-03 | 2016-05-11 | 安徽华海特种电缆集团有限公司 | High temperature resistant cable |
| CN105860173A (en) * | 2016-04-15 | 2016-08-17 | 宿松县焕然机电有限责任公司 | High-flexibility abrasion-resistant material special for motor slot wedge |
| CN105754352A (en) * | 2016-05-12 | 2016-07-13 | 王维娜 | Flame-retardant fire-resistant power cable material and preparation method thereof |
| CN105885150A (en) * | 2016-05-18 | 2016-08-24 | 无为县金华电缆材料有限公司 | High-temperature resistant environment-friendly cable rubber layer formula |
| CN112088189A (en) * | 2018-05-08 | 2020-12-15 | 积水富乐株式会社 | Synthetic resin composition, refractory, sealing material, adhesive, and joint structure |
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