A kind of heat-melt flame retardant filling paste for cables and preparation method thereof

A flame-retardant filling, hot-melt technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of cables losing normal transmission signals and lack of flame-retardant properties, and achieve excellent electrical and dielectric properties, high and low temperature. The effect of excellent performance and excellent flame retardancy

Active Publication Date: 2011-12-14
SHANGHAI HONGHUI OPTICS COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the filling paste products used for cables not only do not have flame retardant properties, but also have combustion-supporting functions in high-temperature and burning environments. Once the cables are under high-temperature and burning conditions, the cables will lose the ability to transmit signals normally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 20 grams of oil separation inhibitor to 200 grams of synthetic oil, heat and stir for 1 to 4 hours, stop heating when the temperature rises to 160 ° C, keep stirring for 1 to 3 hours, and wait for the oil separation inhibitor to dissolve in the synthetic oil After all melting in the medium, add 200 grams of oil flame retardant, stir thoroughly for 0.5 to 1 hour, then add 276 grams of polyisobutylene insulating tackifier, continue stirring for 0.5 to 1 hour, then add 200 grams of polyethylene wax thickener, Then keep warm (160±5℃) and stir for 1 to 3 hours, add 100 grams of flame retardant (50 grams of aluminum hydroxide and 50 grams of magnesium hydroxide) and 4 grams of antioxidant, and then fully return and stir for 0.5 to 1 hour Finally, after filtering, cooling to normal temperature, the final product obtained is light yellow semi-solid.

[0027] Among the above-mentioned raw materials, the flame retardant for oil products is selected from Shanghai Daopu Chemica...

Embodiment 2

[0030] Add 25 grams of oil separation inhibitor to 190 grams of Class 3 hydrogenated white oil, heat and stir for 1 to 4 hours, stop heating when the temperature rises to 160°C, keep stirring for 1 to 3 hours, wait for oil separation to suppress After the agent is completely melted in the 3 types of hydrogenated white oil, add 210 grams of oil flame retardant, stir thoroughly for 0.5 to 1 hour, add 270 grams of polybutene insulating tackifier, and continue stirring for 0.5 to 1 hour before adding 200 grams of polyethylene wax thickener, then keep warm (160±5°C) and stir for 1 to 3 hours, then add 100 grams (50 grams of aluminum hydroxide and 50 grams of magnesium hydroxide) flame retardant and 5 grams of antioxidant, After fully feeding back and stirring for 0.5-1 hour, filter and cool to normal temperature, the final product obtained is light yellow semi-solid.

[0031] Among the above-mentioned raw materials, the flame retardant for oil products is selected from Shanghai Dao...

Embodiment 3

[0034] Add 30 grams of oil separation inhibitor to 220 grams of mixed base oil (100 grams of synthetic oil and 120 grams of Class 3 hydrogenated white oil), heat and stir for 1 to 4 hours, and stop adding when the temperature rises to 160°C Warm, keep warm and stir for 1-3 hours. After the oil separation inhibitor is completely melted in the 3 types of hydrogenated white oil, add 150 grams of oil flame retardant, stir thoroughly for 0.5-1 hour, add 316 grams of polybutene insulation Viscosifier, continue to stir for 0.5 to 1 hour, then add 150 grams of polyethylene wax thickener, then keep warm (160±5°C) and stir for 1 to 3 hours, then add 130 grams (65 grams of aluminum hydroxide and 65 grams of hydrogen Magnesium oxide) flame retardant and 4 grams of anti-oxidant, and then fully feed back and stir for 0.5 to 1 hour, then filter and cool to normal temperature, the final product obtained is light yellow semi-solid.

[0035] Among the above-mentioned raw materials, the flame re...

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Abstract

The invention relates to a hot melt type flame retardation filling paste for a cable, and the filling paste mainly is composed of base oil, an oil product fire retardant, polyisobutylene, a separating oil inhibitor, polyethylene wax, a fire retardant and an anti-oxidant. The invention provides a preparation method of the hot melt type flame retardation filling paste for a cable. The hot melt typeflame retardation filling paste for a cable mainly has the characteristics of good flame resistance, colloid stability, oxidation stability, heat resistance, weatherability, no oil separation of a system, small acid value, strong water-resistance, free of emulsification, excellent high and low temperature performance, excellent electrical performance and excellent dielectric property. The fillingpaste mainly is suitable for being heated and filled into air gap of a multi-conductor wire cable core or gap between cable components of any structure. Water or other fluid is prevented from flowingor migrating into the cable. Effects of flame retardation, insulation, waterproof, moistureproof, buffering and the like are provided for the cable.

Description

technical field [0001] The invention relates to a flame-retardant filling paste for cables and a preparation method thereof, in particular to a hot-melt flame-retardant filling paste for cables and a preparation method thereof. Background technique [0002] With the rapid development of the communication industry, the application of cables indoors and outdoors is increasing day by day. People will put forward some specific requirements for the performance of cables in different places. For cables used in densely populated and special occasions (such as commercial buildings, subways, nuclear power plants, ships, and airplanes), the flame retardancy of the cables should also be considered under the premise of ensuring their good transmission and mechanical properties. In particular, the requirements for halogen-free flame retardant of cables laid indoors are more urgent. [0003] In order to ensure the reliable operation of communication equipment and networks in places requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/295C08L91/00C08L23/20C08L23/06C08K3/22
Inventor 沈江波
Owner SHANGHAI HONGHUI OPTICS COMM TECH
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