CN103408871A - Polyvinyl chloride cable sheath material for CMR-class high-flame-retardance environment-friendly type coaxial cable - Google Patents
Polyvinyl chloride cable sheath material for CMR-class high-flame-retardance environment-friendly type coaxial cable Download PDFInfo
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- CN103408871A CN103408871A CN2013103845081A CN201310384508A CN103408871A CN 103408871 A CN103408871 A CN 103408871A CN 2013103845081 A CN2013103845081 A CN 2013103845081A CN 201310384508 A CN201310384508 A CN 201310384508A CN 103408871 A CN103408871 A CN 103408871A
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Abstract
The invention discloses a polyvinyl chloride cable sheath material for a CMR-class high-flame-retardance environment-friendly type coaxial cable. The sheath material is mainly prepared from the following substances in parts by weight: 100 parts of PVC (polyvinyl chloride) resin, 26-30 parts of a flame-retardant plasticizer, 10-15 parts of trioctyltrimellitate, 8-10 parts of dioctylterephthalate, 8-10 parts of dioctyl sebacate, 4-6 parts of a calcium-zinc compound stabilizer, 6-10 parts of epoxidized soybean oil, 8-10 parts of antimonous oxide, 8-10 parts of flame-retardant powder, 15-20 parts of magnesium hydroxide, 1-2 parts of a lubricant, and 2-6 parts of decabromodiphenylethane. The sheath material disclosed by the invention is high in strength, good in shell-forming property and durability during combustion, excellent in flame retardance and environment friendliness, and especially capable of simultaneously meeting design and selection for CMR-class high-flame-retardance thin-type coaxial cables.
Description
(1) technical field
The present invention relates to a kind of electric wire and cable material, specifically, is a kind of CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound.
(2) background technology
Grade occupy deputy CMR level concentric cable and has perfect fire retardancy, is widely used in the main line application that ventilation system separates with wiring system physically.CMR level cable must pass through intensive flame test: UL1666-" vertically arranged cable propagation of flame high measure in leading to ".
At present existing develop RG6 series CMR level fire-retardant co-axial cable product, in patent ZL200820166233.9, introduced a kind of environment-friendly type CMR level fire-retardant co-axial cable, for the CMR level fire-retardant co-axial cable of RG6 specification, the design difficulty of this cable and crucial exploitation and the type selecting that is sheath material.In patent 201010293995.7, introduced a kind of flame-retardant plastics for communication cables and preparation method thereof, a kind of flame-retardant plastics for communication cables of this disclosure of the invention and preparation method thereof, it includes following component by weight percentage: 46 parts, polyvinyl chloride powder, 24 parts, calcium carbonate, 2.5 parts of calcium zinc tranquilizers, 2.0 parts of antimonous oxides, 0.5 part of polyethylene wax, 9.0 parts of diisononyl phthalate, 15.0 parts of didecyl phthalates, 1.0 parts of soybean oil.The plastics that the aforementioned formula that adopts obtains can reach the burning rank requirement of CMR level, its compare other as CMX, CM/CMG telecommunication cable formula have that the flame retardant grade performance is higher, more environmental protection of performance, temperature grade is higher, field of employment is wider advantage.But when this sheath material is used for the micro type concentric cable, can not reach the CMR level fire-retardant, become at present the general character difficult problem of industry.
In the structure and material of concentric cable, insulate for inflammable substance, sheath is the key that obtains flame retardant effect.For the RG6 specification, insulation is about 0.98 with the volume ratio of sheath, and for the micro type concentric cable, its insulation reaches 1.45 with the volume ratio of sheath, even more than.The CMR level Principle And Method of Flame Retardation Design greatly increased to the micro type concentric cable of the volume ratio of inflammable substance and non-inflammable substance brings great difficulty.
Domestic have producer to use inflammable insulation instead fire-retardant foamed insulation, can reach the fire-retardant requirement of CMR level, large but the specific inductivity of flame retardant type foamed insulation and dielectric loss become, and makes decay become large, the transmission performance variation.
Simultaneously, because the jacket thickness of micro type concentric cable is thinner, generally only has the 0.3mm left and right, the intensity of sheath is obviously not enough, the tensile strength of RG6 specification sheath requires, the requirement of proposition >=17.24MPa is arranged for micro type, and all even persistence of its shelling can not be guaranteed when burning, and final flame retardant effect is also had a great impact.
(3) summary of the invention
The invention provides a kind of CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound, sheath intensity is large, and during burning, shelling and persistence are good, fire-retardant and environmental-protecting performance excellence, and the design that is applicable to CMR level high flame retardant micro type concentric cable is selected.
For achieving the above object, the present invention is by the following technical solutions:
A kind of CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound, described sheath material mainly is prepared from by the material of following weight part:
Further, described sheath material mainly is prepared from by the material of following weight part:
Further, described sheath material mainly is prepared from by the material of following weight part:
CMR level high-flame-resistance environment-friendly concentric cable of the present invention is the same with existing common cable jacket material by the manufacturing process of polyvinyl chloride cable sheathing compound, only starting material need be mixed, and then by the twin screw extruder extruding pelletization, gets final product.
The contriver recommends to realize from following aspect sheath material performance judgement of the present invention:
(1) excellent flame retardant properties:
Halogens itself just has good flame retardant properties, and adding and halogens chlorine and bromine etc. of antimonous oxide has better fire-retardant synergy.Antimonous oxide is the inhibitor of flame, catches the free radicals such as H in flame and HO, but the antimonous oxide steam long period rest on combustion zone, dilution inflammable gas, and cover polymer surfaces and heat insulation, reduce polymer unwinds temperature and decomposition rate.The charcoal layer formed simultaneously can, further by polymkeric substance isolation sealing, stop the effusion of inflammable gas.
In order further to improve shelling and persistence, the present invention has adopted fire-retardant powder, and magnesium hydroxide also has synergism to shelling and persistence simultaneously.Integrated design and utilization by multiple fire retardant mechanism, reached excellent flame retardant effect.Oxygen index reaches more than 34, and sheath material density is lower than 1.45g/cm
3, comprehensive cost does not increase.
(2) excellent mechanical and physical performance:
By the interface processing of magnesium hydroxide, improved toughness and the intensity of sheath material, by the tensile strength of this cable sheath of making, met in the UL standard requirement to micro type concentric cable sheath, namely >=17.24MPa.
(3) excellent environmental-protecting performance:
In the sheath material formulating of recipe, material selection has taken into full account the requirement of environmental protection index:
Softening agent used is all the environment-friendly plasticizer of generally acknowledging, plasticization effect and plasticizer DOP are suitable, and can give the performance such as fast light, heat-resisting, ageing-resistant that goods are good.
The Ca Zn composite stabilising system is the optimal stablizer of current environment-friendly polyvinyl chloride CABLE MATERIALS.
Epoxy soybean oil plays softening agent and auxiliary stabilizer in pvc, particularly with calcium-zinc composite stabilizing agent, be used in conjunction with, and can effectively improve thermostability.
Other system component all adopt the environmental protection auxiliary agent.
Sheath material, through the test of Shanghai SGS inspection center, meets the electronic apparatus ROHS of European Union instruction (2002/95/EC of European Union instruction) requirement fully.
The invention has the beneficial effects as follows: sheath intensity is large, and during burning, shelling and persistence are good, fire-retardant and environmental-protecting performance excellence, and the design that especially can meet simultaneously CMR level high flame retardant micro type concentric cable is selected.
(4) embodiment
The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this.
Embodiment mono-: described sheath material mainly is prepared from by the material of following weight part:
Embodiment bis-: further, described sheath material mainly is prepared from by the material of following weight part:
Above-mentioned sheath material production process by batching, mixing, extrude three large techniques and form.Batching is exactly that above-mentioned starting material are quantitatively carried out to proportioning according to formula; The mixing various starting material high-speed mixing that will prepare exactly; Extrude the plasticizing of heating of exactly that high-speed mixing is good raw material, form the plastic grains product.Its production process is fast the mixing of first preparing burden, then batch mixing is plastified and extrudes pelletizing, dispatches from the factory finally by the qualified rear packing of cooling detection.
It is below the effect comparison sheet of the sheath material of RG6 cable specification flame-retardant sheath material used and two embodiment of the present invention.
From finding out, the intensity of high flame retardant sheath material of the present invention is greatly enhanced, and can stably pass through CMR level combustion test simultaneously, and by post-test-inspection, shelling and persistence during burning are better.
Claims (3)
1. CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound, it is characterized in that: described sheath material mainly is prepared from by the material of following weight part:
2. CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound as claimed in claim 1, it is characterized in that: described sheath material mainly is prepared from by the material of following weight part:
3. CMR level high-flame-resistance environment-friendly concentric cable polyvinyl chloride cable sheathing compound as claimed in claim 1, it is characterized in that: described sheath material mainly is prepared from by the material of following weight part:
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103845081A CN103408871A (en) | 2013-08-29 | 2013-08-29 | Polyvinyl chloride cable sheath material for CMR-class high-flame-retardance environment-friendly type coaxial cable |
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| CN2013103845081A CN103408871A (en) | 2013-08-29 | 2013-08-29 | Polyvinyl chloride cable sheath material for CMR-class high-flame-retardance environment-friendly type coaxial cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111622A (en) * | 2015-09-15 | 2015-12-02 | 嘉兴海棠电子有限公司 | Sheath material for CMR-level high-flame-retardant environment-friendly data cable and preparation method thereof |
| CN106751216A (en) * | 2016-12-27 | 2017-05-31 | 青岛豪迈电缆集团有限公司 | A kind of power cable novel PVC flame-retardant sheath material and preparation method thereof |
| CN109448897A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Counter-bending fatigue coaxial cable and its production technology |
| CN109438868A (en) * | 2018-09-30 | 2019-03-08 | 江苏珠影特种电缆有限公司 | A kind of PVC insulating materials and preparation method thereof manufacturing fireproof cable |
| CN109467849A (en) * | 2018-11-07 | 2019-03-15 | 江苏珠影特种电缆有限公司 | A kind of material and preparation method thereof manufacturing fireproof cable PVC sheath |
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| CN101955618A (en) * | 2010-10-15 | 2011-01-26 | 镇江市华银仪表电器有限公司 | Novel environment-friendly polyvinyl chloride cable material |
| CN102161805A (en) * | 2011-05-28 | 2011-08-24 | 临安市普发电缆材料有限公司 | Polyvinyl chloride cable sheath material for CMR-grade high-flame-retardant environment-friendly coaxial cable |
| CN102816394A (en) * | 2011-06-10 | 2012-12-12 | 深圳市讯道实业有限公司 | Polyvinyl chloride plastic and preparation method thereof |
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- 2013-08-29 CN CN2013103845081A patent/CN103408871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955618A (en) * | 2010-10-15 | 2011-01-26 | 镇江市华银仪表电器有限公司 | Novel environment-friendly polyvinyl chloride cable material |
| CN102161805A (en) * | 2011-05-28 | 2011-08-24 | 临安市普发电缆材料有限公司 | Polyvinyl chloride cable sheath material for CMR-grade high-flame-retardant environment-friendly coaxial cable |
| CN102816394A (en) * | 2011-06-10 | 2012-12-12 | 深圳市讯道实业有限公司 | Polyvinyl chloride plastic and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105111622A (en) * | 2015-09-15 | 2015-12-02 | 嘉兴海棠电子有限公司 | Sheath material for CMR-level high-flame-retardant environment-friendly data cable and preparation method thereof |
| CN106751216A (en) * | 2016-12-27 | 2017-05-31 | 青岛豪迈电缆集团有限公司 | A kind of power cable novel PVC flame-retardant sheath material and preparation method thereof |
| CN109438868A (en) * | 2018-09-30 | 2019-03-08 | 江苏珠影特种电缆有限公司 | A kind of PVC insulating materials and preparation method thereof manufacturing fireproof cable |
| CN109448897A (en) * | 2018-10-09 | 2019-03-08 | 江阴凯博通信科技有限公司 | Counter-bending fatigue coaxial cable and its production technology |
| CN109448897B (en) * | 2018-10-09 | 2020-04-24 | 江阴凯博通信科技有限公司 | Bending fatigue resistant coaxial cable and production process thereof |
| CN109467849A (en) * | 2018-11-07 | 2019-03-15 | 江苏珠影特种电缆有限公司 | A kind of material and preparation method thereof manufacturing fireproof cable PVC sheath |
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Application publication date: 20131127 |