CN102199323A - Antiflaming and antistatic special master batch and preparation method thereof - Google Patents
Antiflaming and antistatic special master batch and preparation method thereof Download PDFInfo
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- CN102199323A CN102199323A CN 201110122974 CN201110122974A CN102199323A CN 102199323 A CN102199323 A CN 102199323A CN 201110122974 CN201110122974 CN 201110122974 CN 201110122974 A CN201110122974 A CN 201110122974A CN 102199323 A CN102199323 A CN 102199323A
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Abstract
The invention belongs to the technical field of cable materials, and particularly relates to a master batch special for cables with the antiflaming and antistatic effect and a preparation method thereof. The master batch is characterized by comprising the following components in part by weight: 20 to 40 parts of high-density polyethylene, 5 to 20 parts of low-density polyethylene, 5 to 10 parts of antistatic agent, 3 to 15 parts of flame retardant, 10 to 20 parts of dispersing agent, 0.1 to 2 parts of stabilizing agent and 40 to 70 parts of filler. The preparation method comprises the following steps of: putting the raw materials into a high-speed stirrer sequentially, mixing uniformly, feeding, and drying at the temperature of between 80 and 130 DEG C; extruding and granulating by using a double screw extruder, wherein the slenderness ratio of the extruder is 20 to 30, and the compression ratio is 5 to 10; and cooling and forming to obtain the master batch. The master batch special for the cables is good in synergistic effects of static resistance and flame retardance, high in toughness and strength, soft in texture, simple in batching and easy to prepare.
Description
Technical field
The invention belongs to the cable material technical field, be specifically related to a kind of cable dedicated parent material and preparation method thereof with fire-retardant and antistatic property.
Background technology
Electric wire is used very extensive in national economy all departments and national defense construction.Along with development of modern science and technology, each emerging department more needs electric wire novel, that particular requirement is arranged.As develop submarine oil field and mineral reserve, need the ocean exploitation cable of high mechanical strength, high leakproofness; Space travel and nuclear energy engineering require can be at operation under the vacuum, radiation hardness, high temperature resistant and anti-extremely cryogenic electric wire etc.
Electric wire adopts plastics and rubber as insulation and sheath material mostly, and this type of polymer materials can produce inflammable gas after being heated, melting, decomposing.During high temperature, these gases can react with oxygen and burn, and can produce a large amount of heat during burning, and with regard to polyethylene itself, oxygen index are 17.0-17.5, and very easily burning causes a serious accident easily.And common polythene is an insulativity, and surface resistivity is too high, on the surface accumulative static to some special Working environments, very big as harm such as mine, actuation gas easily.The fire losses that China is only caused by cable, annual up to tens yuans, the therefore necessary fire-retardant and antistatic property that improves cable.
Though and at present to the fire-retardant of cable with antistatic research arranged also, but seldom there is research that two problems are combined solution, for example, the impact-resistant self extinguishing cable of patent: CN1419698, CN1399283 New-type halide-free low-smoke fireproof cable, CN1445793 low smoke halogen-free fire retardant polyolefin cable material and preparation method thereof etc. mainly are the flame retardant propertiess about cable; And the antistatic low decay mine anti-explosion signal cable of patent: CN101996710A, CN201345245 anti-electrostatic umbilical cable, CN201751950U anti-electrostatic LA light armor ground connection shipboard cable etc. then are the performances about the antistatic and others of cable.
The present invention promptly is at existing issue, solves the inflammable of cable and static electrification problem simultaneously, and a kind of cable masterbatch with flame-retardant and anti-static effect and preparation method thereof is provided.
Summary of the invention
The object of the present invention is to provide a kind of cable masterbatch that has flame retardant resistance and antistatic property simultaneously, overcome the easy static electricity gathered of existing cable, high temperature is inflammable, easily causes the shortcoming of disaster.The cable masterbatch that utilizes this prescription to produce, antistatic good with flame retardant synergistic effect, for safety in production provides safeguard.
The object of the present invention is achieved like this, and this prescription is as shown in the table:
Among the present invention, choosing high density polyethylene(HDPE) and new LDPE (film grade) is base-material.High density polyethylene(HDPE) is the long linear structure that a small amount of side chain is only arranged, and molecular energy more closely flocks together and forms higher density and degree of crystallinity.New LDPE (film grade) degree of crystallinity is low, and molecular stuffing is not tight, and density is less.The linear low density polyethylene performance is pliable and tough, shock-resistant, high density polyethylene(HDPE) tensile strength, rigidity, hardness are better than linear low density polyethylene, help the thin-walled property and the lightweight of goods, but to the environmental stress cracking sensitivity, be easy to brittle cracking under surrounding medium, promptly environmental stress crack resistance is not as new LDPE (film grade).Therefore, we mix use with high density polyethylene(HDPE) according to a certain ratio with linear low density polyethylene, the finished product of making had so both kept the advantage that the intensity of high density polyethylene(HDPE) is big, bear pressure height, thermal distortion difference, had kept the shock-resistance of linear low density polyethylene good again, the advantage of good toughness.Simultaneously, the environmental stress resistance performance increases, and does not have considerable change under heat, oxygen and mechanical shearing effect.
The static inhibitor of selecting for use among the present invention is that the special-purpose static inhibitor of polyolefine is used inorganic salt.To add in the polyethylene base-material after static inhibitor and the inorganic salt mixing.The water absorbability of static inhibitor makes it form the very thin moisture film of one deck at cable surface, and moisture film gathers into micella with the static inhibitor on surface along with dwindling of hydrophobic interfaces.Simultaneously, inorganic salt then are ionized into positive and negative ion in the moisture film on the surface of cable.Therefore water film includes micella, negative ions and water.The a certain ion of micellar adsorption, electric charge inorganic ion in contrast just is centered around around the charged micellar, so formed one deck neutral liquid film at cable surface.Because cable surface is the solution with positive and negative charge, its antistatic effect is better than general method.
Among the present invention, choosing brucite is fire retardant, uses tensio-active agent that brucite is handled simultaneously.The main component of brucite is Mg (OH)
2, it is all fine to have nontoxic, low-corrosiveness and good smoke elimination, tensile strength and a Young's modulus, and its dehydration decomposition temperature reaches 300 ℃.Brucite absorbs a large amount of heat by absorbing water of decomposition and becoming in the process of steam, suppresses the rising of temperature.The water vapour that produces plays the effect of dilution inflammable gas and black smoke simultaneously.In addition, tensio-active agent can become the antistatic ingredient of material on the crosslinked fiber that is attached to brucite.Compare with other fire retardant, have the advantage that can not reduce the strength of materials.
Among the present invention, described dispersion agent is one or more in stearic acid or the stearate.
Among the present invention, described stablizer is one or more in hydroxyl aromatic yl phosphite, dimercapto 2-ethyl hexyl ethanoate dioctyltin or the phenyl diisooctyl phosphorous acid ester.
Filler is selected lime carbonate for use among the present invention.
The flame-retardant and anti-static cable masterbatch preparation process that proposes among the present invention is: raw material put into homogenizer in order mixes, and the material loading oven dry, drying temperature is 80～130 ℃; Use the twin screw extruder extruding pelletization again, the forcing machine length-to-diameter ratio is 20～30, and compression ratio is 5～10; Cooling and shaping obtains.
The present invention with prior art relatively has following advantage:
1, with high density polyethylene(HDPE) and the compound use of new LDPE (film grade), improved the performance of cable masterbatch, have that shock-resistance is good, the advantage of good toughness.Simultaneously, the environmental stress resistance performance increases, and does not have considerable change under heat, oxygen and mechanical shearing effect.
2, the static inhibitor of choosing is used inorganic salt, has formed one deck neutral liquid film, good flame retardation effect at cable surface.
3, choosing brucite is fire retardant, good flame retardation effect, the advantage that has the static resistance of strongthener simultaneously and do not reduce the strength of materials.
4, the fire-retardant and antistatic synergy of product of the present invention is good, can satisfy the requirement of some special industries fully, and has kept good processing characteristics and mechanical property.
Embodiment
Below in conjunction with embodiment and experimental example the present invention is described in further detail, but they are not limitation of the invention.
Embodiment 1:
The component ratio (weight %) of flame-retardant and anti-static cable masterbatch:
Raw material is put into homogenizer in order mix, the material loading oven dry, drying temperature is 90 ℃; Use the twin screw extruder extruding pelletization again, the forcing machine length-to-diameter ratio is 25, and compression ratio is 8; Cooling and shaping obtains.
Embodiment 2:
The component ratio (weight %) of flame-retardant and anti-static cable masterbatch:
Raw material is put into homogenizer in order mix, the material loading oven dry, drying temperature is 90 ℃; Use the twin screw extruder extruding pelletization again, the forcing machine length-to-diameter ratio is 25, and compression ratio is 8; Cooling and shaping obtains.
Embodiment 3:
The component ratio (weight %) of flame-retardant and anti-static cable masterbatch:
Raw material is put into homogenizer in order mix, material loading oven dry, drying temperature is 90 ℃ and uses the twin screw extruder extruding pelletization again, and the forcing machine length-to-diameter ratio is 25, and compression ratio is 8; Cooling and shaping obtains.
The Performance Detection of the flame-retardant and anti-static cable masterbatch that makes by above embodiment is as follows:
Experimental example tensile strength (MPa) oxygen index (%) surface resistivity (Ω)
Embodiment 1 13.1 38.9 3.7 * 10
6
Embodiment 2 12.3 37.1 2.8 * 10
6
Embodiment 3 12.8 36.9 3.2 * 10
6
As can be seen from the above table, the flame-retardant and anti-static cable masterbatch tensile strength height of the present invention's preparation, antistatic effect is good, and flame retardant properties is strong.
Claims (2)
1. one kind has cable dedicated parent material of fire-retardant and antistatic property and preparation method thereof, it is characterized in that: comprise following component: 20～40 parts of high density polyethylene(HDPE)s; 5～20 parts of new LDPE (film grade)s; 5～10 parts in static inhibitor; 3～15 parts of fire retardants; 10～20 parts of dispersion agents; 0.1～2 part of stablizer; 40～70 parts of fillers.
2. one kind by the described cable masterbatch with fire-retardant and antistatic property of claim 1, it is characterized in that: with high density polyethylene(HDPE) and the compound use of new LDPE (film grade), improved the performance of cable masterbatch, had that shock-resistance is good, the advantage of good toughness; Simultaneously, the environmental stress resistance performance increases, and does not have considerable change under heat, oxygen and mechanical shearing effect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110122974 CN102199323B (en) | 2011-05-12 | 2011-05-12 | Antiflaming and antistatic special master batch and preparation method thereof |
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| CN 201110122974 CN102199323B (en) | 2011-05-12 | 2011-05-12 | Antiflaming and antistatic special master batch and preparation method thereof |
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| CN102199323A true CN102199323A (en) | 2011-09-28 |
| CN102199323B CN102199323B (en) | 2013-07-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881218A (en) * | 2014-04-10 | 2014-06-25 | 太仓市晨洲塑业有限公司 | PE (polyethylene) tube for non-excavation cable |
| CN105006294A (en) * | 2015-08-12 | 2015-10-28 | 国网山东省电力公司临沂供电公司 | New type low voltage power transmission cable |
| CN105702343A (en) * | 2016-02-03 | 2016-06-22 | 安徽华联电缆集团有限公司 | High temperature resistant and corrosion resistant electric cable |
| CN105778201A (en) * | 2014-12-18 | 2016-07-20 | 上海凯波特种电缆料厂有限公司 | Flame retardant polyethylene cable material for rapid extrusion of fine cables with thin wall |
| CN106782804A (en) * | 2016-12-26 | 2017-05-31 | 国网山东省电力公司临沂供电公司 | Insulated conductor is pressed in a kind of anti-lightning strike type |
| CN109776920A (en) * | 2019-01-23 | 2019-05-21 | 上海邦中新材料有限公司 | A kind of flame-proof polyethylene packaging film and preparation method thereof |
| CN112542272A (en) * | 2019-09-20 | 2021-03-23 | 广东胜宇电缆实业有限公司 | Flame retarded cable insulating layer automatic feeding system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469089A (en) * | 2008-06-19 | 2009-07-01 | 上海化工研究院 | Halogen-free polyvinyl composite for manufacturing pipes and manufacturing method thereof |
-
2011
- 2011-05-12 CN CN 201110122974 patent/CN102199323B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469089A (en) * | 2008-06-19 | 2009-07-01 | 上海化工研究院 | Halogen-free polyvinyl composite for manufacturing pipes and manufacturing method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881218A (en) * | 2014-04-10 | 2014-06-25 | 太仓市晨洲塑业有限公司 | PE (polyethylene) tube for non-excavation cable |
| CN103881218B (en) * | 2014-04-10 | 2016-05-18 | 江苏诺贝尔塑业有限公司 | A kind of non-excavation cable is managed with PE |
| CN105778201A (en) * | 2014-12-18 | 2016-07-20 | 上海凯波特种电缆料厂有限公司 | Flame retardant polyethylene cable material for rapid extrusion of fine cables with thin wall |
| CN105778201B (en) * | 2014-12-18 | 2018-08-28 | 上海凯波特种电缆料厂有限公司 | A kind of fire-retardant polyethylene cable material and preparation method thereof quickly squeezed out for thin thin-walled line |
| CN105006294A (en) * | 2015-08-12 | 2015-10-28 | 国网山东省电力公司临沂供电公司 | New type low voltage power transmission cable |
| CN105702343A (en) * | 2016-02-03 | 2016-06-22 | 安徽华联电缆集团有限公司 | High temperature resistant and corrosion resistant electric cable |
| CN106782804A (en) * | 2016-12-26 | 2017-05-31 | 国网山东省电力公司临沂供电公司 | Insulated conductor is pressed in a kind of anti-lightning strike type |
| CN109776920A (en) * | 2019-01-23 | 2019-05-21 | 上海邦中新材料有限公司 | A kind of flame-proof polyethylene packaging film and preparation method thereof |
| CN112542272A (en) * | 2019-09-20 | 2021-03-23 | 广东胜宇电缆实业有限公司 | Flame retarded cable insulating layer automatic feeding system |
| CN112542272B (en) * | 2019-09-20 | 2024-04-26 | 广东胜宇电缆实业有限公司 | Automatic feeding system for flame-retardant cable insulating layer |
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| CN102199323B (en) | 2013-07-17 |
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