A kind of cable sheath and preparation method thereof

A sheath and cable technology, applied in cables, insulated cables, conductors, etc., can solve the problems of damage to the nose, mouth and throat of the on-site personnel, difficulty in escaping from the fire scene, and the victims are easily disoriented, etc., to increase high-temperature thermal stability. excellent flexibility, good thermal stability

Inactive Publication Date: 2016-01-06
福建福硕线缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At the same time, most of the existing cable sheaths contain halides. In a fire, the halogen-containing cables will consume a lot of oxygen and release a lot of smoke, such as carbon monoxide and carbon dioxide, as well as acidic and toxic gases, which will damage the noses, Mouth and throat, the smoke also makes victims easily disoriented and difficult to escape from the scene of the fire, which is the greatest threat to human life in a fire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] A method for preparing a cable sheath, comprising the steps of:

[0063] Ingredients: prepare raw materials according to parts by weight;

[0064] Mixing: Add magnesium hydroxide, aluminum hydroxide, silicone and silane into the high-speed mixer and mix for 5-10 minutes, then add ethylene-vinyl acetate copolymer, maleic anhydride grafted ethylene-vinyl acetate copolymer, Maleic anhydride grafted polyethylene, filler, antioxidant 1010, zinc oxide, iron oxide, epoxy soybean oil and toner, mix for 15-20min, then add polyethylene, mix for 15-20min, the high speed The speed of the mixer is 900-1000rpm, and the temperature is 120-150°C;

[0065] Pelletizing: After the raw materials are mixed, they are extruded and pelletized by a twin-screw extruder, and then packed.

Embodiment 1

[0067] A cable sheath, said cable sheath comprises the following materials by weight:

[0068] 80 parts of ethylene-vinyl acetate copolymer,

[0069] 70 parts of magnesium hydroxide,

[0070] 70 parts of aluminum hydroxide,

[0071] 30 parts of maleic anhydride grafted ethylene-vinyl acetate copolymers,

[0072] 30 parts of maleic anhydride grafted polyethylene,

[0073] Zinc borate 20 parts,

[0074] 5 parts silicone,

[0075] 5 parts of silane,

[0076] 40 parts of calcium carbonate,

[0077] Antioxidant 10101 parts,

[0078] 1 part zinc oxide,

[0079] 1 part iron oxide,

[0080] 3 parts epoxy soybean oil,

[0081] 2 parts of toner,

[0082] Polyethylene 5 parts,

[0083] The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 25%.

[0084] A method for preparing a cable sheath, comprising the steps of:

[0085] Ingredients: prepare raw materials according to parts by weight;

[0086] Mixing: Add magnesium hydroxide, aluminum hydroxide, silicone...

Embodiment 2

[0089] A cable sheath, said cable sheath comprises the following materials by weight:

[0090] 120 parts of ethylene-vinyl acetate copolymer,

[0091] 90 parts of magnesium hydroxide,

[0092] 90 parts of aluminum hydroxide,

[0093] 40 parts of maleic anhydride grafted ethylene-vinyl acetate copolymers,

[0094] 40 parts of maleic anhydride grafted polyethylene,

[0095] 30 parts of zinc borate,

[0096] Silicone 8 parts,

[0097] 8 parts of silane,

[0098] 60 parts of montmorillonite,

[0099] Antioxidant 10102 parts,

[0100] Zinc oxide 2 parts

[0101] 2 parts iron oxide,

[0102] 5 parts of epoxy soybean oil,

[0103] 3 parts of toner,

[0104] Polyethylene 8 parts,

[0105] The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 30%.

[0106] A method for preparing a cable sheath, comprising the steps of:

[0107] Ingredients: prepare raw materials according to parts by weight;

[0108] Mixing: Add magnesium hydroxide, aluminum hydroxide, ...

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PUM

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Abstract

The invention discloses a cable scarfskin which comprises the following materials in parts by weigh: ethylene-vinyl-acetate copolymer, magnesium hydroxide, aluminum hydroxide, maleic anhydride grafted ethylene- vinyl-acetate copolymer, maleic anhydride grafted polyethylene, silicone, silane, fillers, antioxygen 1010, zinc oxide, ferric oxide, epoxidized soybean oil, toner and polyethylene. The cable scarfskin has the characteristics of good flexibility, high impact resistance, high environmental stress resistance, and the like, by compounding EVA and PE. A flaw which can cause crack can not appear. Meanwhile, in order to overcome the defects of flammability, a plurality of auxiliaries, such as aluminum hydroxide and magnesium hydroxide, are added, thereby improving the fire resistance of the cable scarfskin. Materials comprising halide are not added, which makes the cable scarfskin have no halogen. The fillers are added to make the heat stability of the cable scarfskin good. The cable scarfskin can be used at 105 DEG C.

Description

technical field [0001] The invention belongs to the technical field of cable production, in particular to a cable sheath and a preparation method thereof. Background technique [0002] Cable is a general term for items such as optical cables and cables. There are many uses of cables, mainly used for multiple functions such as control installation, connection equipment, power transmission, etc. It is a common and indispensable thing in daily life. [0003] Due to the long-term use, the temperature of the working environment will be very high, so the outer sheath of the cable is required to have the property of high temperature resistance. [0004] At the same time, most of the existing cable sheaths contain halides. In a fire, the halogen-containing cables will consume a lot of oxygen and release a lot of smoke, such as carbon monoxide and carbon dioxide, as well as acidic and toxic gases, which will damage the noses, Mouth and throat, smoke also makes victims easily lost a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L83/04C08K13/06C08K9/06C08K3/22C08K3/38C08K5/1515C08K3/26C08K3/34C08K3/36
CPCC08L23/0853C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/025C08L2205/035H01B3/441H01B7/295C08L51/06C08L23/06C08L83/04C08K13/06C08K9/06C08K2003/2224C08K2003/2227C08K3/38C08K5/1515C08K2003/2296C08K2003/2265
Inventor 陈乃煌陈道铃
Owner 福建福硕线缆股份有限公司
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