Low-smoke fireproofing cable material without halide and its preparation method

A flame retardant cable material and raw material technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of poor compatibility between inorganic materials and organic materials, achieve good water resistance and electrical insulation properties, less addition, good mechanical properties performance effect

Inactive Publication Date: 2008-10-15
YUNNAN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies of the prior art, to provide a new type of cable material, on the basis of realizing the requirements of low smoke, halogen-free and flame retardant, to strengthen the mechanical properties of the material, and to overcome the problem of poor compatibility between inorganic materials and organic materials technical challenge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 70 parts of medium density polyethylene (MDPE), 30 parts of ethylene-octene elastomer copolymer (POE), 45 parts of ammonium polyphosphate (APP) with a degree of polymerization of 500 and a particle size of 25um, and 15 parts of triol-soluble nylon , 1.5 parts of melamine (MEL), 5 parts of zinc borate (ZB) with a particle size of 25um, 10 parts of ethylene-octene elastomer copolymer grafted maleic anhydride copolymer, 0.6 parts of titanate coupling agent (qq127), 0.3 part of antioxidant (1010) and 0.2 part of magnesium stearate for use. Put ammonium polyphosphate (APP), melamine (MEL) and zinc borate (ZB) in a high-speed mixer, mix well, spray and coat the mixed powder with qq127 for 5 minutes, then add medium density polyethylene ( MDPE), ethylene-octene elastomer copolymer (POE), triol-soluble nylon, ethylene-octene elastomer copolymer grafted maleic anhydride copolymer, antioxidant 1010 and magnesium stearate, stir until uniform ; The resulting mixture is fed into a...

Embodiment 2

[0037] Repeat Example 1, with the following differences: the weight of each raw material is composed of 80 parts of medium-density polyethylene (MDPE), 20 parts of ethylene-octene elastomer copolymer (POE), polymerization degree of 600, and particle size of 20um. 40 parts of ammonium phosphate (APP); 15 parts of triol-soluble nylon, 1.5 parts of melamine (MEL), 5 parts of zinc borate (ZB) with a particle size of 20um, ethylene-octene elastomer copolymer grafted maleic anhydride copolymer 10 parts, 0.4 parts of titanate coupling agent (qq127), 0.3 parts of antioxidant (1010) and 0.4 parts of magnesium stearate. After testing, the indicators are shown in Table 1.

Embodiment 3

[0039] Repeat Example 1, with the following differences: the weight of each raw material is composed of 90 parts of medium-density polyethylene (MDPE), 10 parts of ethylene-vinyl acetate copolymer (EVA), ammonium polyphosphate with a degree of polymerization of 700 and a particle size of 15um. (APP) 30 parts; 10 parts of triol-soluble nylon, 1 part of melamine (MEL), 10 parts of zinc borate (ZB) with a particle size of 15um, 5 parts of ethylene-vinyl acetate copolymer grafted maleic anhydride copolymer, titanium 0.4 part of acid ester coupling agent (qq127), 0.3 part of antioxidant (1010) and 0.2 part of calcium stearate. After testing, the indicators are shown in Table 1.

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PUM

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Abstract

The invention discloses a low-smoke flame-proof non-halogen cable material and preparing method, which comprises the following steps: blending polyphosphoric ammonia and zinc boride evenly; spraying and cladding the composite material through coupler; adding middle-density polyethylene, copolymer, functional nylon, compatible agent, anti-oxidant and lubricant to stir evenly; transmitting composite material into concurrent twin-screw extruder to fuse; graining after winding to obtain the product.

Description

Technical field [0001] The invention belongs to the technical field of cable protection materials, and specifically relates to a low-smoke, halogen-free, flame-retardant cable material. At the same time, the present invention also relates to a method for preparing the cable material. Background technique [0002] Wires and cables are widely used for the transmission of energy and information. The traditional cable coating materials are made of flammable polymer composite materials, which are not only easy to age and have a short service life, but also are prone to excessive line load during their use. Or the outside temperature is too high and burns, causing a fire. At the same time, its combustion will produce a large amount of smoke and poisonous gas, which will cause breathing difficulties, fainting, and even death of the inhaler, and seriously endanger the life and property safety of the people. As people’s awareness of safety and environmental protection continues to increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K5/3492H01B7/295C08L23/08C08L77/00C08L51/06C08K5/09C08K3/32
Inventor 李云东李海丽王汝春刘晨曦曾波
Owner YUNNAN CHEM RES INST
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