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Weatherproof halogen-free flame-retardant termite-resistant rodent-resistant electric wire and cable

A flame retardant cable, intumescent flame retardant technology, applied in the field of wire and cable, can solve the problems of low production efficiency, high energy consumption, limited material application fields, etc., and achieve the effect of small smoke generation

Inactive Publication Date: 2011-06-15
黄东东 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prior to this, the traditional organic montmorillonite had high energy consumption, low production efficiency and other adverse factors in the preparation, as well as the insufficiency of hygroscopicity and surface treatment technology of intumescent flame retardant materials, which severely limited the application field of this material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Preparation of Organic Montmorillonite by Microwave

[0055] Add 25g of montmorillonite and 750g of deionized water, raise the temperature to 75 degrees, add dropwise an aqueous solution containing 12g of dioctyldimethylammonium bromide at a concentration of 20%, and treat it with microwave for 7 minutes every 45 minutes after the addition is completed , stirred for 5 hours, filtered with suction, washed the precipitate with deionized water, silver nitrate (0.1mol / L) could not detect bromide ions, dried in vacuum to constant weight, ground and sieved through 200 meshes to obtain organic modified montmorillonite earth.

example 2

[0057] Preparation of Dinonyl Acid Phosphate

[0058] Put 2 mol of isononyl alcohol and 1 mol of n-hexane into a four-necked bottle, control the reaction temperature to about 10 degrees under stirring, add dropwise a mixed solution of 1 mol of phosphorus oxychloride and 0.5 mol of n-hexane, raise the temperature to 30 degrees after the dropwise addition, and stir After half an hour, it was raised to 50 degrees, and after stirring for half an hour, it was raised to 60 degrees. The temperature is kept at 60-70 degrees until no hydrogen chloride gas is released, and the unreacted isononyl alcohol and phosphorus oxychloride are evaporated under reduced pressure. Then drop a sufficient amount of water into the system, keep it warm at 50°C for 1 hour to complete the hydrolysis, separate with a separatory funnel, wash away hydrogen chloride with distilled water, and obtain dinonyl acid phosphate with a yield of 85.5%.

example 3

[0060] Preparation of halogen-free intumescent flame-retardant cable insulation material

[0061] The formula composition of the halogen-free intumescent flame-retardant cable insulation material in parts by weight:

[0062] 3 parts organic montmorillonite

[0063] EPDM glue 22 parts

[0064] Ethylene vinyl acetate copolymer 34 parts

[0065] Ammonium polyphosphate 20 parts

[0066] Melamine polyphosphate 5 parts

[0067] 3 parts pentaerythritol

[0068] 2 parts expanded graphite

[0069] 10 parts melamine

[0070] Dinonyl acid phosphate 2 parts

[0071] 0.01 parts of 4,4'-thiobis(6-tert-butyl-3-methylphenol)

[0072] 0.1 parts of 2,4-dihydroxybenzophenone

[0073] Ethylene vinyl acetate copolymer modifier 8 parts

[0074] After being kneaded by a plastic kneader and granulated by a granulator, the halogen-free intumescent flame-retardant cable insulation material can be prepared.

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Abstract

The invention discloses an all-weather halogen-free flame-retardant anti-termite and rat-repellent wire and cable, belonging to the cable field; the halogen-free flame-retardant cable material comprises insulating material and sheathing material; the insulating material has the following components based on weight portion: 3-5 portions of organic-montmorillonite, 55-65 portions of polyolefin resins, 30-50 portions of nitrogenous-phosphatic halogen-free expansion flame-retardant materials, (dinonyl acid phosphate is used for surface treatment to improve the compatibility and the fire-retardant performance of materials), 0.01-0.3 portion of antioxidant, 0.01-0.2 portion of UV absorber and 5-10 portions of modifiers; 1-2 portions of natural-graded rat and termite repellent agent microcapsules are added to the prepared cable material, which can prepare the halogen-free flame-retardant anti-termite and rat-repellent cable sheathing material. The cable insulating layer can choose common cross-linked polyethylene or the halogen-free flame-retardant cable insulating material of the invention; the cable sheathing layer chooses the halogen-free flame-retardant anti-termite and rat-repellent cable sheathing material of the invention.

Description

technical field [0001] The all-weather halogen-free flame-retardant rodent-proof and ant-proof wire and cable of the invention belongs to the field of wires and cables. Background technique [0002] At present, my country is implementing urban and rural power grid transformation, western development and large-scale upgrading and transformation of communication facilities, and there is a large demand for wire and cable products. As people pay more and more attention to the biological safety protection system, new requirements are put forward for the functions of wire and cable products, that is, to meet the requirements of safety, environmental protection, and pest control, but the existing cables cannot meet the above performance requirements. Prior to this, the traditional organic montmorillonite had high energy consumption, low production efficiency and other adverse factors in the preparation, as well as the lack of hygroscopicity and surface treatment technology of intum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/02C08K13/06C08K9/04C08K3/32C08K5/51C08K5/053C08K3/04C08K5/3492C08K5/521C08K5/20C08K5/10H01B7/295H01B7/17
Inventor 黄东东常迪
Owner 黄东东