Environment-friendly cable insulation material, preparation method thereof, and cable sheath

A cable insulation and environment-friendly technology, applied in the direction of insulated conductors, insulated cables, organic insulators, etc., can solve the problems of flame spread, impassability, life and property, fire rescue hazards, etc., and achieve high flame retardancy and cost reduction effects

Inactive Publication Date: 2018-02-23
TEBIAN ELECTRIC APP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The flame retardancy of ordinary polyvinyl chloride plastic is generally Z-class flame-retardant, which cannot pass the ZA-class bundled combustion test required by the national standard. In a fire, it will cause flames to spread, causing great harm to life, property and fire rescue. If the flame retardant performance of the material is guaranteed, it will not cause the wire to catch fire, and it will also prevent the spread of the fire when encountering an external fire source.

Method used

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  • Environment-friendly cable insulation material, preparation method thereof, and cable sheath
  • Environment-friendly cable insulation material, preparation method thereof, and cable sheath
  • Environment-friendly cable insulation material, preparation method thereof, and cable sheath

Examples

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Effect test

Embodiment 1

[0052] This embodiment provides an environment-friendly cable insulation material. The raw material formula of the cable insulation material includes:

[0053] PVC resin;

[0054] plasticizer;

[0055] Flame retardants, including melamine-coated ammonium polyphosphate;

[0056] Heat stabilizers, heat stabilizers include organic calcium zinc rare earth composite stabilizers and hydrotalcites;

[0057] Antioxidant;

[0058] Processing aids;

[0059] lubricant;

[0060] filler;

[0061] Colorant.

[0062] The flame retardant melamine-coated ammonium polyphosphate absorbs heat and forces dehydration to form a non-combustible simple carbon layer, which blocks heat and oxygen transfer, prevents the generation of CO, releases nitrogen and ammonia, dilutes the effect of oxygen concentration, and simultaneously decomposes the generated PO· Free radicals, which can combine with H free radicals in the flame area, play a role in suppressing the flame.

[0063] The environment-friend...

Embodiment 2

[0065] This embodiment provides an environment-friendly cable insulation material. The raw material formula of the cable insulation material includes:

[0066] PVC resin;

[0067] plasticizer;

[0068] Flame retardants, including antimony trioxide coated with zinc borate;

[0069] Heat stabilizers, heat stabilizers include organic calcium zinc rare earth composite stabilizers;

[0070] Antioxidant;

[0071] Processing aids;

[0072] lubricant;

[0073] filler;

[0074] Colorant.

[0075] Flame retardant zinc borate coating antimony trioxide to make full use of antimony trioxide combustion product SbCl 3 The covering effect of steam covering the surface of the combustion zone, zinc borate releases water to reduce the temperature of the combustion zone and forms a glass on the surface, which has a solid-phase flame-retardant effect of insulation, heat insulation and oxygen insulation, and at the same time captures the combustion factor HO in the gas phase, Vapor-phase fl...

Embodiment 3

[0086] This embodiment provides an environment-friendly cable insulation material. The raw material formula of the cable insulation material includes the following weight components:

[0087]

[0088] The PVC resin includes PVC resin SG-3.

[0089] The flame retardant includes antimony trioxide coated with zinc borate, ammonium polyphosphate coated with melamine, and octametic anhydride (the weight ratio is 2:1:1).

[0090] The heat stabilizer includes organic calcium zinc composite stabilizer and hydrotalcite (weight ratio is 2:3).

[0091] The plasticizer includes chlorinated paraffin 52# ​​and tricresyl phosphate (weight ratio is 1:1).

[0092] Described antioxidant comprises tetrakis [beta-(3,5-di-tert-butyl-4-hydroxyl phenyl) propionate] pentaerythritol ester and three [2.4-di-tert-butyl phenyl] phosphite (weight ratio is 2:1).

[0093] The processing aids include silicones.

[0094] The lubricant comprises ethylene bis stearic acid amide and stearic acid (weight r...

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Abstract

The invention discloses an environment-friendly cable insulation material, a preparation method thereof, and a cable sheath. The cable insulation material is prepared from the following raw materials:a PVC resin, a plasticizer, a flame retardant which comprises zinc borate-coated antimony trioxide and/or melamine-coated ammonium polyphosphate, a thermal stabilizer which comprises one or more of an organic calcium zinc complex stabilizer, an organic calcium zinc rare earth complex stabilizer, hydrotalcite, and methyltin dilaurate, an antioxidant, a processing aid, a lubricant, a filler, and acolorant. The environment-friendly cable insulation material provided by the invention is a thermoplastic cable material, which can achieve the functions of preventing burning or retarding combustionin case of fire and extinguishing away from fire, the oxygen index of the cable insulation material is more than or equal to 35, the environmental protection performance of the cable insulation material is better than the RoHS instruction requirement, and the heavy metal content of the cable insulation material provided by the invention is reduced by 10% on the basis of the RoHS instruction requirement. The cable insulation material provided by the invention is suitable for use in workplaces with high fire safety requirements.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to an environment-friendly cable insulation material, a preparation method thereof, and a cable sheath. Background technique [0002] Wires and cables are linear objects, and they are also linear as ignition sources. The flame spreads with the trend of wires and cables. The burning rate of horizontal cables is 3.5m / min, while the vertical burning rate of vertical wires and cables reaches 8-9m. / min. Therefore, wire and cable fires burn rapidly and are difficult to control. According to statistics, the incidence rate of electrical fires and the property losses caused are among the top causes of various fires, among which, more than 30% of the fires are caused by electrical lines (wires and cables) (data from the 2014 China Fire Protection Yearbook ). [0003] Commonly used cable materials are polyvinyl chloride, polyolefin low-smoke and halogen-free materials, rubber, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08L83/04C08L91/00C08L23/28C08K13/06C08K9/10C08K3/22C08K5/12C08K5/11C08K3/32C08K3/24H01B3/44H01B7/295H01B7/17
CPCC08L27/06C08L2201/02C08L2203/202C08L2205/02C08L2205/025C08L2205/03C08L2205/035H01B3/443H01B7/17H01B7/295C08L91/06C08L83/04C08L23/286C08K13/06C08K9/10C08K3/2279C08K5/12C08K5/11C08K3/24C08K2003/323C08K5/523C08L91/00
Inventor 马静冯国兴廉辉胡振瑞孙改玲魏超刘润王现超
Owner TEBIAN ELECTRIC APP CO LTD
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