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B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material and preparation method thereof

A technology for insulating cables and cable materials, applied in the direction of insulators, organic insulators, plastic/resin/wax insulators, etc.

Inactive Publication Date: 2019-04-16
上海至正新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on the above background, major cable factories now have higher requirements on the flame retardant performance of cables. However, the problems of radiation cross-linked low-smoke and halogen-free insulating cable materials regarding the amount of smoke and heat generated by combustion still need to be resolved.

Method used

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  • B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material and preparation method thereof
  • B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material and preparation method thereof
  • B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material and preparation method thereof

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preparation example Construction

[0106] The present invention also provides a preparation method of cable material, the method comprising:

[0107] mixing the respective raw materials with corresponding mass fractions; and

[0108] Extrude the mixed raw materials and granulate;

[0109] In this way, the cable material is obtained.

[0110] The mixing, extruding and granulating in the preparation method of the cable material of the present invention can be carried out by adopting conventional mixing, extruding and granulating methods in the field. For example, the raw materials can be mixed using an internal mixer; the raw materials can be further mixed, sheared, kneaded, plasticized and / or extruded using a twin-screw extruder and / or a single-screw extruder; extrusion cooling Finally, the extruded material can be pelletized using a pelletizer.

[0111] Preferably, the preparation method of cable material of the present invention may comprise the following steps:

[0112] (1) Prepare the corresponding raw m...

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Abstract

The invention discloses a B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material and a preparation method thereof. The B1-grade flame-retardant irradiation crosslinking low-smoke halogen-free insulated cable material is prepared from, by mass, 5-30% of ethylene-vinyl acetate copolymer (EVA), 1-20% of ethylene-octylene copolymer (POE), 1-20% of polyethylene (PE), 1-10% of ethylene-ethyl methacrylate copolymer (EMA), 1-5% of silane, 1-10% of a compatilizer, 40-70% of a flame retardant, 1-5% of an antioxidant, 0-5% of other auxiliaries and 10-40% of inert filler. The cable material can meet B1-grade flame-retardant requirements and has good mechanical performance and processing performance.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a B1-grade flame-retardant irradiation cross-linked low-smoke halogen-free insulating cable material and a preparation method thereof. Background technique [0002] Most of the electrical fires in our country are caused by the aging and overloading of wires and cables. At the same time, the flammable insulation and sheath materials in the wires and cables are ignited during the fire, which further expands the fire accident. The toxic gas emitted by the burning of wire and cable insulation and sheath materials will cause a large number of casualties and hinder firefighters from extinguishing the fire. The main feature of low-smoke halogen-free flame retardant is that all materials do not contain halogen, and the amount of smoke released during combustion is very small. The lethal gas concentration emitted by polyvinyl chloride material in 30 minutes is 15 times that of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22C08K5/3492C08K3/26H01B3/44
CPCC08K2003/2224C08K2003/2227C08L23/0815C08L23/0853C08L2201/02C08L2201/22C08L2205/035C08L2207/062C08L2312/06H01B3/441C08L23/06C08L23/0869C08K13/02C08K3/22C08K5/34928C08K3/26
Inventor 张昊成宋刚张贤灵
Owner 上海至正新材料有限公司
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