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A composite material used for a special cable, a preparing method thereof and the special cable

A technology of special cables and composite materials, which is applied in the field of power cables, can solve problems such as complex preparation process requirements, reduce cable reliability, and increase product costs, so as to improve fire resistance and wear resistance, improve aging resistance, and improve performance Effect

Inactive Publication Date: 2016-03-16
YANCHENG KEHENGDA MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to form a uniform blend between the above polymers, and the requirements for the preparation process are relatively complicated, and more additives are added, which undoubtedly increases the product cost and reduces the reliability of the cable.

Method used

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  • A composite material used for a special cable, a preparing method thereof and the special cable
  • A composite material used for a special cable, a preparing method thereof and the special cable

Examples

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preparation example Construction

[0055] The preparation of ethylene-vinyl acetate copolymer modified geopolymer adopts the following method to carry out:

[0056] (1) The raw material mixture is configured according to the mass percentage, metakaolin: sodium hydroxide: water glass: water = 100:10:110:1500; the raw material mixture is kept at 60°C for 1 hour, and spray-dried to form a geopolymer powder;

Embodiment 1-1

[0060] Raw materials are prepared in the following proportions (by weight):

[0061] Polyetheretherketone 65

[0062] Polyethylene 20

[0063] Polyimide 20

[0064] Ethylene-vinyl acetate copolymer modified geopolymer 8

[0065] Silicon Nitride Whiskers 4

[0066] Molybdenum trioxide 1.5

[0067] Magnesium Oxide 15

[0068] Coupling agent 1.2

[0069] Dicumyl peroxide 0.6.

[0070] Wherein, molybdenum trioxide average particle diameter selects 100nm for use, and magnesium oxide selects the mixture that the average particle diameter of 20wt% is the magnesium oxide of 150nm and the average particle diameter of 80wt% is the mixture of the magnesium oxide of 500nm, and coupling agent selects silane coupling agent for use: titanium Ester coupling agent=2:1.

[0071] (1) Mix silicon nitride whiskers, molybdenum trioxide, magnesium oxide, and coupling agent in proportion to form a mixture, mix the resulting mixture with isopropanol at a mass ratio of 1:2, and perform ultrason...

Embodiment 1-2

[0074] Compared with embodiment 1-1, only the following adjustments are made to the ratio of raw materials:

[0075] In parts by weight:

[0076] PEEK 45

[0077] Polyethylene 30

[0078] Polyimide 10

[0079] Ethylene-vinyl acetate copolymer modified geopolymer 8

[0080] Silicon Nitride Whiskers 5

[0081] Molybdenum trioxide 1.5

[0082] Magnesium Oxide 15

[0083] Coupling agent 1.3

[0084] Dicumyl peroxide 0.8.

[0085] Wherein, molybdenum trioxide average particle diameter selects 100nm for use, and magnesium oxide selects the mixture that the average particle diameter of 20wt% is the magnesium oxide of 150nm and the average particle diameter of 80wt% is the mixture of the magnesium oxide of 500nm, and coupling agent selects silane coupling agent for use: titanium Ester coupling agent=2:1.

[0086] The prepared composite material for special cables is designated as sample 1-2.

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Abstract

A composite material used for a special cable, a preparing method thereof and the special cable are disclosed. According to the composite material, polyether ether ketone, polyethylene and polyimide are mixed according to a ratio and adopted as a substrate material, ethylene-vinyl acetate copolymer modified geopolymers, molybdenum trioxide and magnesium oxide are processed by a coupling agent and then adopted as a flame retardant additive, dicumyl peroxide is adopted as a crosslinking catalyst, silicon nitride whiskers are adopted as a fortifier, and the composite material is formed by melting and blending. The composite material has good high-temperature resistance and improved flame retardant effects, and can achieve no performance stability decrease under severe working conditions. In addition, the composite material is used for preparing an outer sheath of the special cable, and durability, fire resistance and stability of the special cable are improved.

Description

technical field [0001] The invention belongs to the field of power cables, and in particular relates to a composite material for special cables, a preparation method thereof and special cables prepared by using the same. Background technique [0002] As the application range of power cables becomes wider and wider, different usage environments have different requirements, such as high temperature resistance, low temperature resistance, oil resistance, tear resistance, flame retardancy, animal damage prevention, etc. Especially in the case of special use conditions and complex application environments, the demand for special cables is becoming more and more prominent, and higher requirements are put forward for the reliability and durability of cables. [0003] Common special cables include: fireproof cables, heating cables, environmental protection cables and so on. In the prior art, according to the requirements of special cables, new structures, new materials, and new pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08L23/06C08L79/08C08L23/08C08K13/04C08K7/10C08K3/22C08K5/14H01B7/295H01B7/28H01B7/18
CPCY02A30/14
Inventor 唐思钊
Owner YANCHENG KEHENGDA MATERIALS CO LTD
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