Preparation method of flame-retardant cable material

A technology for flame-retardant cable materials and preparation steps, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc., which can solve the problems of poor carbonization ability and easy burning of cable material matrix resin, and achieve low crystallinity and good compatibility Effect

Inactive Publication Date: 2018-05-22
常州市瑞泰物资有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a method for preparing a flame-retardant cable ma

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
  • Preparation method of flame-retardant cable material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] Mix 400 mL of sodium hydroxide solution with a mass fraction of 40% and 80 g of aluminum hydroxide, put it in a stainless steel pot, heat it up to 200 ° C through a resistance furnace, and cook for 20 min to obtain a cooking liquid. Filter the cooking liquid with a microporous membrane, Remove the solid residue to obtain a sodium aluminate solution; mix the aluminum sulfate solution with a mass fraction of 30% and the above-mentioned sodium aluminate solution in an equal volume ratio, add it to a beaker, heat the beaker in a water bath and raise the temperature to 70 ° C, stir for 10 min, and keep the temperature. React for 30min to obtain a reaction product, place the reaction product in a high-speed centrifuge at a rotational speed of 4500r / min for 15min, separate and remove the upper layer liquid to obtain a lower layer precipitate, wash the precipitate with water until the washing liquid is neutral, and obtain a supernatant. Refine aluminum hydrox...

Example Embodiment

[0027] Example 2

[0028]Mix 450 mL of sodium hydroxide solution with a mass fraction of 40% and 85 g of aluminum hydroxide, put it in a stainless steel pot, heat it up to 215 ° C through a resistance furnace, and cook for 23 minutes to obtain a cooking liquid. Filter the cooking liquid with a microporous membrane, Remove the solid residue to obtain a sodium aluminate solution; mix the aluminum sulfate solution with a mass fraction of 30% and the above-mentioned sodium aluminate solution in an equal volume ratio, add it to a beaker, heat the beaker in a water bath and heat up to 73 ° C, stir for 13 min, and keep the temperature. React for 33min to obtain a reaction product, place the reaction product in a high-speed centrifuge at 4650r / min for centrifugation for 17min, separate and remove the upper layer liquid to obtain a lower layer precipitate, wash the precipitate with water until the washing liquid is neutral, and obtain a supernatant. Refining aluminum hydroxide; placing...

Example Embodiment

[0029] Example 3

[0030] Mix 500 mL of sodium hydroxide solution with a mass fraction of 40% and 90 g of aluminum hydroxide, put it in a stainless steel pot, heat it up to 230 ° C through a resistance furnace, and cook for 25 minutes to obtain a cooking liquid. Filter the cooking liquid with a microporous membrane, Remove the solid residue to obtain a sodium aluminate solution; mix the aluminum sulfate solution with a mass fraction of 30% and the above-mentioned sodium aluminate solution in an equal volume ratio, add it to a beaker, heat the beaker in a water bath and heat up to 75 ° C, stir for 15min, and keep the temperature. React for 35min to obtain a reaction product, place the reaction product in a high-speed centrifuge at 4800r / min for centrifugation for 20min, separate and remove the upper layer liquid to obtain a lower layer precipitate, wash the precipitate with water until the washing liquid is neutral, and obtain a supernatant. Refine aluminum hydroxide; put the u...

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 relates to a cable material and a preparation method thereof, in particular to a method for preparing a flame-retardant cable material. In the present invention, sodium aluminate solution is neutralized with aluminum sulfate and ultra-fine aluminium hydroxide powder is obtained through gel crystallization. After the aluminum hydroxide powder is modified, the modified aluminum hydroxide powder is blended with other synergistic flame-retardant materials and matrix resin, pelleting is carried out and then hot-pressing is carried out to obtain the flame-retardant cable material. Thesurface of the EVA resin is coated by the aluminum hydroxide powder, and as crystal nuclei are continuously generated, a core-shell structured coated type composite powder is finally formed and functions as a flame retardant. Aluminum hydroxide is packed into the matrix resin to construct a carbonized layer, which can not only prevent heat and oxygen from entering, but also prevent small moleculesof flammable gas from escaping. Red phosphorus reacts with free radicals to inhibit production and degradation of free radicals, and polyphosphoric acid can be obtained during the reaction. Polyphosphoric acid can dehydrate and carbonize the flame-retardant materials, and thus make the cable material difficult to burn. When the matrix resin is burnt, the char yield of the matrix resin is high. The flame-retardant cable material disclosed by the invention has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of preparation of flame-retardant cable materials, in particular to a preparation method of flame-retardant cable materials. Background technique [0002] With the rapid development of the economy, wires and cables are widely used in various industries and fields. It is mainly used in the production of power cables, computer, refrigerator, TV, air conditioner and other electronic and electrical equipment, internal and external connecting wires, instrument wires, automobile wires, motor leads, mobile phone and notebook computer wires. Plastics for wire and cable insulation and sheathing are commonly known as cable materials, including rubber, plastic, nylon and other varieties. Except for bare wire products such as steel-cored aluminum stranded wire and electromagnetic wire, almost all wire and cable products require an insulation layer. At present, there are nearly 5,000 wire and cable production enterpris...

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
IPC IPC(8): C08L23/08C08K9/04C08K3/22C08K3/02H01B3/44
CPCC08L23/0853C08K2003/026C08K2003/2227C08L2201/02C08L2203/202H01B3/441C08L23/0815C08K9/04C08K3/22C08K3/02
Inventor 徐颜峰何俊欣张淑娴
Owner 常州市瑞泰物资有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap