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Flame-resistant TPU (thermoplastic polyurethane) cable sheath material with electromagnetic shielding function as well as preparation method thereof

A cable sheathing material and electromagnetic shielding technology, applied to circuits, electrical components, organic insulators, etc., can solve problems such as instrument and instrument interference, abnormal use, etc., and achieve low production costs, reduced usage, and good flexibility Effect

Inactive Publication Date: 2018-07-06
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-resistant TPU (thermoplastic polyurethane) cable sheath material with electromagnetic shielding function as well as preparation method thereof
  • Flame-resistant TPU (thermoplastic polyurethane) cable sheath material with electromagnetic shielding function as well as preparation method thereof
  • Flame-resistant TPU (thermoplastic polyurethane) cable sheath material with electromagnetic shielding function as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A flame-retardant TPU cable sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0048]

[0049] The thermoplastic polyurethane is polyether polyurethane.

[0050] The carbon fiber is a carbon fiber whose surface is treated with a coupling agent.

[0051] The carbon fiber has a fiber length of 2 mm and a single filament diameter of 5 μm.

[0052] The flame retardant is a halogen-free flame retardant; the halogen-free flame retardant is ammonium phosphate, ammonium polyphosphate, modified ammonium polyphosphate, aluminum hypophosphite or melamine and compounds thereof.

[0053] The compatibilizer is polyurethane prepolymer modified maleic anhydride grafted polyethylene.

[0054] The antioxidant is tetrakis[methylene-3,5-(di-tert-butyl-4-hydroxy-phenyl)propionate]pentaerythritol ester.

[0055] It also includes 1 part of smoke suppressant and 0.02 part of antihydrolysis agent; the smoke suppressant is ...

Embodiment 2

[0061] A flame-retardant TPU cable sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0062]

[0063] The thermoplastic polyurethane is polyester polyurethane.

[0064] The carbon fiber is a carbon fiber whose surface is treated with a coupling agent.

[0065] The carbon fiber has a fiber length of 3 mm and a single filament diameter of 6.5 μm.

[0066] The flame retardant is a mixture of a halogen-containing flame retardant and a synergistic flame retardant in a weight ratio of 4:1; the halogen-containing flame retardant is 2,6-dibromophenylene ether, tetrabromobisphenol A , hexabromocyclododecane, octabromoether, decabromodiphenylethane or polypentabromophenol-based acrylate; the synergistic flame retardant is antimony trioxide, bismuth trioxide, molybdenum trioxide or three ferric oxide.

[0067] The compatibilizer is divinyltetramethyldisiloxane, vinyltriethoxysiloxane, vinyltrichlorosilane or vinyltr...

Embodiment 3

[0075] A flame-retardant TPU cable sheath material with electromagnetic shielding function, comprising the following raw materials in parts by weight:

[0076]

[0077] The thermoplastic polyurethane is polycarbonate polyurethane.

[0078] The carbon fiber is a carbon fiber whose surface is treated with a coupling agent.

[0079] The carbon fiber has a fiber length of 6 mm and a single filament diameter of 7 μm.

[0080] The flame retardant is a halogen-free flame retardant; the halogen-free flame retardant is zinc borate, montmorillonite, clay or metal hydroxide.

[0081] The compatibilizer is γ-glycidyl etheroxypropyl trimethoxysilane, γ-methacryloxypropyl-trimethoxysilane or N-(β-aminoethyl)-γ-aminopropyl -Methyl-trimethoxysilane.

[0082] The antioxidant is tris[2,4-di-tert-butylphenyl]phosphite.

[0083] It also includes 5 parts of smoke suppressant and 0.06 part of anti-hydrolysis agent; said smoke suppressant is metal oxide; said anti-hydrolysis agent is polycarb...

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Abstract

The invention relates to the technical field of a cable material, in particular to a flame-resistant TPU (thermoplastic polyurethane) cable sheath material with an electromagnetic shielding function as well as a preparation method thereof. The TPU cable sheath material comprises the following raw materials in parts by weight: 25 to 85 parts of TPU, 5 to 45 parts of carbon fiber, 5 to 35 parts of flame retardant, 0.5 to 5 parts of compatilizer and 0.02 to 0.1 part of antioxidant. The TPU cable sheath material provided by the invention has the electromagnetic shielding function, the shielding efficacy SE value can reach to 17 to 50 db, the flame-resistant effect is excellent, the flame-resistant effect of single cable sheath cable through vertical combustion test can reach to Level V0, the strength is high, the tensile strength can reach to above 25.5 MPa, the flexibility is high, the breaking elongation is high and can reach to above 410 percent and the mechanical property is excellent.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a flame-retardant TPU cable 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] Polyurethane elastomer refers to a type of elastomeric polymer containing more carbamate functional groups (NH-CO-O-) on the main chain of the macromolecule. It is a typical multi-block copolymer with wear resistance Good, wide hardness range, high strength, high elongation, large load support capacity, good shoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L75/04C08L75/06C08L51/06C08L69/00C08L63/00C08L25/06C08K9/06C08K7/06H01B3/30
CPCC08K7/06C08K9/06C08K2201/003C08K2201/004C08L75/08C08L2201/02C08L2201/22C08L2203/202C08L2205/035C08L2207/04H01B3/302C08L51/06C08L75/06C08L75/04C08L69/00C08L63/00C08L25/06
Inventor 李同兵黄有为刘悦钟荣栋
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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