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Flame-retardant TPE cable insulation material or sheathing material with electromagnetic shielding function and preparation method of TPE cable insulation material or sheathing material

A cable insulation and electromagnetic shielding technology, applied in the direction of organic insulators, organic liquid insulators, insulators, etc., can solve problems such as instrument and instrument interference, abnormal use, etc., to reduce usage, improve compatibility, and improve processing rheology Effect

Inactive Publication Date: 2018-08-17
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, electromagnetic interference will also cause interference to instruments and meters, resulting in abnormal use, especially in the field of medical equipment, where the precision of instruments is high, and the electromagnetic interference generated by cables is the main reason for affecting the normal operation of instruments

Method used

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  • Flame-retardant TPE cable insulation material or sheathing material with electromagnetic shielding function and preparation method of TPE cable insulation material or sheathing material
  • Flame-retardant TPE cable insulation material or sheathing material with electromagnetic shielding function and preparation method of TPE cable insulation material or sheathing material
  • Flame-retardant TPE cable insulation material or sheathing material with electromagnetic shielding function and preparation method of TPE cable insulation material or sheathing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A flame-retardant TPE cable insulation material or sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0053]

[0054] The SEBS is a styrene-ethylene-butylene-styrene block copolymer with a styrene unit content of 40%, an ethylene unit content of 30%, and a butene unit content of 30%.

[0055] The PP is a homopolypropylene with a Rockwell hardness of 90 and a melt index of 5g / 10min at a temperature of 230°C; the POE is an ethylene-octene copolymer with a hardness of 70A and an octene unit content of 20%; the The PE is low-density polyethylene; the oil is white oil with a flash point of 200°C.

[0056] The carbon nanotubes are single-arm carbon nanotubes whose surfaces have been acidified.

[0057] The carbon nanotubes have a diameter of 10 nm and an aspect ratio of 100.

[0058] The flame retardant is a halogen-free flame retardant; the halogen-free flame retardant is ammonium phosphate, ammonium pol...

Embodiment 2

[0067] A flame-retardant TPE cable insulation material or sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0068]

[0069] The SEPS is a styrene-ethylene-propylene-styrene block copolymer with a styrene unit content of 40%, an ethylene unit content of 30%, and a propylene unit content of 30%.

[0070] The PP is a block copolymer polypropylene with a Rockwell hardness of 100 and a melt index of 8g / 10min at a temperature of 230°C; the POE is an ethylene-octene copolymer with a hardness of 75A and an octene unit content of 22%; The PE is linear low-density polyethylene; the oil is naphthenic oil with a flash point of 220°C.

[0071] The carbon nanotubes are multi-walled carbon nanotubes whose surfaces have been acidified.

[0072] The carbon nanotubes have a diameter of 20 nm and an aspect ratio of 200.

[0073] The flame retardant is a mixture of a halogen-containing flame retardant and a synergistic flame...

Embodiment 3

[0082] A flame-retardant TPE cable insulation material or sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0083]

[0084]

[0085] The SEBS is a styrene-ethylene-butylene-styrene block copolymer with a styrene unit content of 50%, an ethylene unit content of 25%, and a butene unit content of 25%.

[0086] The PP is a random copolymerized polypropylene with a Rockwell hardness of 105 and a melt index of 12g / 10min at a temperature of 230°C; the POE is an ethylene-octene copolymer with a hardness of 78A and an octene unit content of 25%; The PE is metallocene linear low-density polyethylene; the oil is white mineral oil with a flash point of 250°C.

[0087] The carbon nanotubes are single-arm carbon nanotubes whose surfaces have been acidified.

[0088] The carbon nanotubes have a diameter of 50 nm and an aspect ratio of 500.

[0089] The flame retardant is a halogen-free flame retardant; the halogen-fr...

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Abstract

The invention provides a flame-retardant thermoplastic elastomer (TPE) cable insulation material or sheathing material with an electromagnetic shielding function and a preparation method of the TPE cable insulation material or sheathing material. The TPE cable insulation material or sheathing material comprises the following raw materials in parts by weight: 20-40 parts of SEBS or SEPS, 10-30 parts of PP, 10-30 parts of POE, 5-20 parts of PE, 20-40 parts of oil, 5-45 parts of carbon nanotubes, 5-35 parts of a flame retardant, 0.5-5 parts of a compatibilizer, and 0.02-0.1 part of an antioxidant. The TPE cable insulation material or sheathing material provided by the invention has the electromagnetic shielding function, the shielding effectiveness (SE) value can reach 17-50 db, and the flame-retardant effect is excellent; and a single vertical burning test can reach a V0 level, the strength is high, the tensile strength can reach 15 MPa or more, the flexibility is good, the elongation atbreak is high and can reach 450% or more, and the mechanical properties are excellent.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a flame-retardant TPE cable insulation material or sheath material with electromagnetic shielding function and a preparation method thereof. Background technique [0002] At present, cables are widely used in the fields of power systems, information transmission, and instrumentation systems. However, the cable covering materials made of traditional polymer material PVC are prone to fire and combustion during use, causing fires. Due to the The chlorine content is as high as 60%, which produces fumes of toxic gases such as hydrogen halides and carbon monoxide during combustion. [0003] TPE (Thermoplastic Elastomer) is the abbreviation of thermoplastic elastomer. It is a material with high elasticity, high strength and high resilience of rubber, and can be processed by injection molding. It has both the processing performance of thermoplastics and the properties of vulcaniz...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/12C08L53/00C08L23/14C08L23/08C08L23/06C08L91/06C08L91/00C08L67/00C08L71/00C08L69/00C08L63/00C08L25/06C08K13/06C08K7/24C08K3/32C08K5/3492C08K3/38C08K3/34C08K3/22C08K5/521C08K5/523C08K5/5313C08K5/49C08K5/03C08K5/06C08K5/136C08K5/02H01B3/44H01B3/34H01B3/22
CPCC08K2003/2224C08K2003/2227C08K2003/322C08K2003/323C08K2003/387C08K2201/003C08K2201/011C08K2201/014C08K2201/016C08L53/025C08L91/00C08L91/06C08L2201/02C08L2203/202C08L2205/025C08L2205/035C08L2207/066H01B3/22H01B3/34H01B3/442C08L23/12C08L53/00C08L23/14C08L23/0815C08L23/06C08L67/00C08L71/00C08L69/00C08L63/00C08L25/06C08K13/06C08K3/041C08K3/32C08K5/34922C08K5/34928C08K3/38C08K3/346C08K3/22C08K5/521C08K5/523C08K5/5313C08K5/49C08K5/03C08K3/2279C08K5/06C08K5/136C08K5/02
Inventor 李同兵黄有为刘悦钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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