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Method for preparing low-smoke halogen-free flame-retardant cable material containing plastic compatilizer

A technology of flame retardant cable material and compatibilizer, used in plastic/resin/wax insulators, organic insulators, etc. Application range and other issues, to achieve the effect of improving the physical and mechanical properties of tensile strength and elongation at break, reducing interfacial energy, and ensuring tensile strength and elongation at break

Inactive Publication Date: 2012-04-04
宝应宝洲电缆材料厂
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the composition of low-smoke, halogen-free and flame-retardant polyolefin plastics for wire and cable is composed of 60% inorganic mineral active magnesium hydroxide and active aluminum hydroxide, related polymer polyolefin resins and other additives, it is precisely because of the current The addition of a large amount of inorganic mineral active magnesium hydroxide and active aluminum hydroxide will inevitably affect the mechanical and physical properties of the product, especially the decline in tensile strength and elongation at break, which will directly affect the quality of the final product wire and cable. Application range

Method used

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  • Method for preparing low-smoke halogen-free flame-retardant cable material containing plastic compatilizer
  • Method for preparing low-smoke halogen-free flame-retardant cable material containing plastic compatilizer

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Embodiment Construction

[0008] 1. Production of compatibilizer

[0009] 1. Prepare a maleic anhydride acetone solution with a mass percentage concentration of 50%:

[0010] Dissolve 2kg of maleic anhydride in 2kg of acetone to form 4kg of maleic anhydride acetone solution with a concentration of 50% by mass.

[0011] 2. Preparation of grafting mixture:

[0012] Put 0.04 kg of bis-dipenta vulcanizing agent into 4 kg of maleic anhydride acetone solution with a concentration of 50% by mass, mix well to form a grafted mixture, and set aside.

[0013] 3. Preparation of compatibilizer:

[0014] Use a vented twin-screw extruder to plasticize 100kg of EVA resin, and use a stainless steel injection pump to drive the above grafted mixture into the third barrel of the extruder to make the maleic anhydride acetone solution and EVA resin plastic To carry out the grafting reaction. And control the reaction temperature of the 13 zones of the extruder respectively: 95℃, 110℃, 115℃, 120℃, 120℃, 125℃, 125℃, 130℃, 130℃, 135℃, 1...

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Abstract

The invention discloses a method for preparing a low-smoke halogen-free flame-retardant cable material containing a plastic compatilizer, and relates to the technical field of production of low-smoke halogen-free flame-retardant plastics for electric wires and cables. The method comprises the following steps of: mixing ethylene vinyl acetate (EVA) resin, active magnesium hydroxide, active aluminum hydroxide, silicone, low molecular polyethylene (PE) wax, zinc stearate, antioxidant 1010 and granular plastic compatilizer in a mixer, mixing and kneading the mixture in a mixing and kneading machine, plasticizing and granulating the mixture in a double-screw extruder, and forming low-smoke halogen-free flame-retardant cable material granules. Compared with the prior art, the low-smoke halogen-free flame-retardant cable material formed by adopting the method has the characteristics that: the tensile strength, the elongation at break and the physical and mechanical properties of a product are obviously improved; and the low temperature resistance of the product is also improved and can reach 20 DEG C below zero, so after the compatilizer is used, the product can better meet the requirements of the cable manufacturing industry.

Description

Technical field [0001] The invention relates to the technical field of production of low-smoke halogen-free flame-retardant plastics for wires and cables. Background technique [0002] Because the composition of low-smoke halogen-free flame-retardant polyolefin plastic for wire and cable is composed of 60% inorganic mineral active magnesium hydroxide and active aluminum hydroxide, related polymer polyolefin resin and other additives, it is precisely because of the current The addition of a large amount of inorganic mineral active magnesium hydroxide and active aluminum hydroxide will inevitably affect the physical and chemical properties of the product, especially the decrease in tensile strength and elongation at break, which directly affects the final product wire and cable Application range. Summary of the invention [0003] The purpose of the present invention is to provide a method for preparing a low-smoke halogen-free flame-retardant cable material containing a compatibili...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L31/04C08L51/06H01B3/44C08K13/06C08K9/00C08K3/22C08K5/098
Inventor 杨永泉
Owner 宝应宝洲电缆材料厂
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