Aging-resistant flame-retardant cable and processing technology

A processing technology, flame retardant cable technology, applied in power cable, insulated cable, cable/conductor manufacturing and other directions, can solve the problems of poor aging resistance, difficult to meet the high standard requirements of cables, etc. performance, avoid the effect of agglomeration

Active Publication Date: 2020-04-21
东莞福川精密工业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Patent CN106751362B discloses a high-temperature-resistant halogen-free flame-retardant thermoplastic elastomer cable material, which is based on thermoplastic dynamically vulcanized elastomer, homopolypropylene, styrene-based elastomer, intumescent flame retardant, rubber oil, lubricant, anti-corrosion Oxygen agent, light stabilizer, etc. are made of raw materials. Relying on the synergistic cooperation between different components of intumescent flame retardants, the flame retardant performance is acceptable, but the aging resistance is not good, and it is still difficult to meet the current high requirements for cables. standard requirement

Method used

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  • Aging-resistant flame-retardant cable and processing technology

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Embodiment 1

[0034] A processing technology for aging-resistant flame-retardant cables. First, multiple wires are twisted into bundles and wrapped around the cladding and insulating layers on the outside to obtain wire cores, and then multiple groups of wire cores are arranged in bundles to form cable cores. The insulation layer and the sheath layer are wrapped in turn on the outside of the cable core to obtain the cable, wherein the sheath layer is prepared by the following method:

[0035](1) First mix 100kg methyl vinyl silicone rubber, 30kg EPDM rubber, 15kg thermoplastic polyester elastomer, 5kg carboxyl liquid nitrile rubber, 4kg structure control agent and 5kg organic modified filler with a kneader to obtain Mixture; the organically modified filler is coated with magnesium hydroxide on the surface of the ammonium polyphosphate-aluminum hydroxide-zinc borate compound, then the resulting product is mixed with ethyl naphthol, hexacyclite powder, silicon carbide fiber, and then the penta...

Embodiment 2

[0045] A processing technology for aging-resistant flame-retardant cables. First, multiple wires are twisted into bundles and wrapped around the cladding and insulating layers on the outside to obtain wire cores, and then multiple groups of wire cores are arranged in bundles to form cable cores. The insulation layer and the sheath layer are wrapped in turn on the outside of the cable core to obtain the cable, wherein the sheath layer is prepared by the following method:

[0046] (1) First mix 100kg methyl vinyl silicone rubber, 40kg EPDM rubber, 20kg thermoplastic polyester elastomer, 8kg carboxyl liquid nitrile rubber, 6kg structure control agent and 8kg organic modified filler with a kneader to obtain Mixture; the organically modified filler is coated with magnesium hydroxide on the surface of the ammonium polyphosphate-aluminum hydroxide-zinc borate compound, then the resulting product is mixed with ethyl naphthol, hexacyclite powder, silicon carbide fiber, and then the pent...

Embodiment 3

[0056] A processing technology for aging-resistant flame-retardant cables. First, multiple wires are twisted into bundles and wrapped around the cladding and insulating layers on the outside to obtain wire cores, and then multiple groups of wire cores are arranged in bundles to form cable cores. The insulation layer and the sheath layer are wrapped in turn on the outside of the cable core to obtain the cable, wherein the sheath layer is prepared by the following method:

[0057] (1) First mix 100kg methyl vinyl silicone rubber, 30kg EPDM rubber, 20kg thermoplastic polyester elastomer, 5kg carboxyl liquid nitrile rubber, 6kg structure control agent and 5kg organic modified filler with a kneader to obtain Mixture; the organically modified filler is coated with magnesium hydroxide on the surface of the ammonium polyphosphate-aluminum hydroxide-zinc borate compound, then the resulting product is mixed with ethyl naphthol, hexacyclite powder, silicon carbide fiber, and then the pent...

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Abstract

The invention provides an aging-resistant flame-retardant cable and a processing technology, which has the advantages of excellent aging resistance, excellent flame retardancy and excellent mechanicalproperties. According to the invention, a plurality of wires are intertwisted into a bundle and are externally wrapped by a wrapping layer and an insulating layer in sequence to obtain a wire core, then a plurality of groups of wire cores are arranged into a bundle to form a cable core, and finally, the cable core is externally wrapped by an isolation layer and a sheath layer in sequence to obtain the cable. The sheath layer takes methyl vinyl silicone rubber, ethylene propylene diene monomer and thermoplastic polyester elastomer as main raw materials, so that the basic mechanical propertiesand aging resistance of the product are ensured. The surface of an ammonium polyphosphate-aluminum hydroxide-zinc borate compound is coated with magnesium hydroxide, the obtained product is mixed withethyl naphthol, hexacyclic stone powder and silicon carbide fibers, then pentaerythritol triallyl ether and 3-aminopropyltrimethoxysilane are used for modification treatment to obtain an organic modified filler, the organic modified filler can be well fused with methyl vinyl and the like, and the mechanical performance of the product is prevented from being affected.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to an aging-resistant and flame-retardant cable and a processing technology. Background technique [0002] A cable is a wire made of one or more mutually insulated conductors and an outer insulating layer that transmits power or information from one place to another. A rope-like cable that is usually twisted by several or groups of wires (at least two in each group), each group of wires is insulated from each other, and is often twisted around a center, and the entire outer surface is covered with a high degree of insulation overlay. They are composed of single-strand or multi-strand wires and soft copper conductors, which are used to connect circuits and electrical appliances. [0003] Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission line...

Claims

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Application Information

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IPC IPC(8): H01B13/02H01B13/06H01B13/22H01B9/00H01B7/02H01B7/18H01B7/28H01B7/295C08L83/07C08L23/16C08L67/00C08L13/00C08K13/06C08K9/06C08K9/04C08K3/32C08K3/22C08K3/38C08K7/10
CPCC08K2003/2224C08K2003/2227C08K2003/323C08K2003/387C08L83/04C08L2201/02C08L2203/202C08L2205/035H01B7/02H01B7/18H01B7/28H01B7/295H01B9/00H01B13/02H01B13/06H01B13/22C08L23/16C08L67/00C08L13/00C08K13/06C08K9/06C08K9/04C08K3/32C08K3/22C08K3/38C08K7/10
Inventor 刘德文
Owner 东莞福川精密工业股份有限公司
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