Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Grease-proof low-smoke halogen-free flame-proof cable material

A flame-retardant cable and oil-resistant technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor oil resistance and low-smoke halogen-free flame retardant materials.

Inactive Publication Date: 2009-08-19
SHANGHAI ELECTRIC CABLE RES INST
View PDF0 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For polyethylene or EVA substrates, due to their non-polar molecular structure, their oil resistance is generally poor, resulting in poor oil resistance of low-smoke halogen-free flame retardant materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Grease-proof low-smoke halogen-free flame-proof cable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Base material ethylene-vinyl ester copolymer: 25Kg, flame retardant: surface-treated magnesium hydroxide 32.5Kg, surface-treated red phosphorus 1.25Kg, zinc borate 2.5Kg, antimony trioxide 1.25Kg, antioxidant: 1010, 0.25Kg, DLTP 0.25Kg, crosslinking sensitizer TAIC, 0.75Kg, processing aid stearic acid 1.25Kg, colorant carbon black 0.25Kg.

[0026] The above raw materials are respectively placed in a mixer for mixing and stirring, then internally kneaded by a banbury mixer, twin-screw extruded and granulated, processed into wires, and cross-linked by radiation.

Embodiment 2

[0028] Base material ethylene-acid vinyl ester copolymer: 12.75Kg, base material nitrile rubber: 12.25Kg, flame retardant: surface-treated magnesium hydroxide 7.5Kg, surface-treated red phosphorus 1.5Kg, zinc borate 2.5Kg, polyphosphoric acid Ammonium 13.75Kg, antioxidant: 1010, 0.5Kg, cross-linking sensitizer TMPTMA, 1.5Kg, processing aid paraffin 0.5Kg, colorant carbon black, 8.75Kg.

[0029] The above raw materials are respectively placed in a mixer for mixing and stirring, then internally kneaded by a banbury mixer, twin-screw extruded and granulated, processed into wires, and cross-linked by radiation.

Embodiment 3

[0031] Base material ethylene-acid vinyl ester copolymer: 17.5Kg, base material nitrile rubber: 7.5Kg, flame retardant: surface-treated aluminum hydroxide 20Kg, surface-treated magnesium hydroxide 10Kg, surface-treated red phosphorus 2.5Kg, Zinc borate 2.5Kg, ammonium polyphosphate 2.5Kg, antioxidant: 1010, 1Kg, crosslinking sensitizer triallyl cyanurate, 1.5Kg, processing aid stearic acid 1Kg, colorant carbon black 7.5Kg.

[0032] The above raw materials are respectively placed in a mixer for mixing and stirring, then internally kneaded by a banbury mixer, twin-screw extruded and granulated, processed into wires, and cross-linked by radiation.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a cross-linking type environment-friendly cable insulation material, characterized in oil resistance, low content of smoke, zero halogen and flame resistance. The cable insulation material comprises the components with the following weight portions: 20 to 40 percent of ethylene-vinyl acetate copolymer, 0 to 20 percent of nitrile rubber, 40 to 60 percent of flame retardant, 0.5 to 3 percent of oxidizing agent, 1 to 3 percent of cross-linking sensitizer, 0 to 15 percent of coloring agent and 0.5 to 1 percent of processing agent. The flame retardant is made from one or two of aluminum hydroxide and magnesium hydroxide of which surfaces are treated and one or more of red phosphorus, antimony trioxide, zinc borate or phosphate flame-retardant agent of which surfaces are treated; the invention selects the appropriate macromolecule base stock ethylene-vinyl acetate copolymer to compound with the nitrile rubber and applies the surface treatment to inorganic powders for improving the oil resistance of the material. The cable insulation material characterized in low content of smoke and zero halogen has good oil resistance.

Description

technical field [0001] The invention relates to the technical field of wire and cable manufacturing for rail transit, in particular to a formulation of an oil-resistant cross-linked insulating material for a low-smoke, halogen-free, flame-retardant cable. Background technique [0002] As we all know, in recent years, the demand for low-smoke halogen-free flame-retardant cable materials has increased significantly in quantity, and higher requirements have been put forward in terms of varieties. Low-smoke halogen-free flame-retardant cable materials can be divided into thermoplastic type and cross-linked type. Thermoplastic low-smoke halogen-free cable materials are mainly used as sheath materials for various cables such as power cables, control cables, and communication cables. Cross-linked low-smoke halogen-free flame-retardant cable materials are mostly used for insulation and sheathing of cables for ships, cables for nuclear power industry, cables for locomotives, automob...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L31/04C08K13/02C08K3/22C08K9/04C08K3/02C08K3/38C08K3/32H01B3/44
Inventor 张贤灵黄一钊葛小言
Owner SHANGHAI ELECTRIC CABLE RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com