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Multilayer coated red phosphorus low smoke halogen-free flame retardant polyolefin cable sheath material and preparation method thereof

A multi-layer coating and sheathing material technology, applied in cables, insulated cables, conductors and other directions, can solve the problems of unsatisfactory flame retardant effect, low physical properties, poor water resistance, etc., and achieves low smoke generation and high physical properties. , the effect of low smoke flame retardant effect

Active Publication Date: 2012-10-17
ZHEJIANG SHIP ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the disadvantages of low-smoke halogen-free flame-retardant cable materials in the prior art, such as unsatisfactory flame-retardant effect, low physical properties, poor water resistance and easy dripping; it provides a polyolefin elastomer as base material, multi-layer Low-smoke, halogen-free, flame-retardant polyolefin cable sheathing compound coated with red phosphorus as the main flame retardant and compounded with other flame-retardant and smoke-suppressing agents

Method used

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  • Multilayer coated red phosphorus low smoke halogen-free flame retardant polyolefin cable sheath material and preparation method thereof
  • Multilayer coated red phosphorus low smoke halogen-free flame retardant polyolefin cable sheath material and preparation method thereof
  • Multilayer coated red phosphorus low smoke halogen-free flame retardant polyolefin cable sheath material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029]Prepare flame retardant A and flame retardant B according to the weight parts of Example 1 in Table 1, wherein the specific preparation process of flame retardant A is: select the red phosphorus micropowder with a particle size of less than 1800 mesh and coat it with two layers of different packaging materials The inner packing material is inorganic aluminum hydroxide, the outer packing material is melamine resin, and the weight ratio of each component is red phosphorus: aluminum hydroxide: melamine resin = 60:30:10. The specific preparation process of flame retardant B is: put melamine cyanurate and magnesium hydroxide with a particle size of less than 2000 mesh into a high-speed mixer, and heat up to 70-95°C while stirring; The coupling agent is pumped into the high-speed mixer, and the end of the pump must be connected with a spiral hollow cone nozzle to spray the silane coupling agent in the form of mist. The dosage of the silane coupling agent is 2% of the total weig...

Embodiment 2

[0032] Prepare flame retardant A and flame retardant B according to the weight parts of Example 2 in Table 1, wherein the specific preparation process of flame retardant A is: select the red phosphorus micropowder with a particle size of less than 1800 meshes and coat it with two layers of different packaging materials The inner packaging material is inorganic aluminum hydroxide, the outer packaging material is melamine resin, and the weight ratio of each component is red phosphorus: aluminum hydroxide: melamine resin = 65:25:10. The specific preparation process of flame retardant B is as follows: put melamine cyanurate and magnesium hydroxide with a particle size of less than 2000 mesh into a high-speed mixer, and heat up to 70-95°C while stirring; after reaching the required temperature, add titanic acid The ester coupling agent is pumped into the high-speed mixer, and the end of the pump must be connected with a spiral hollow cone nozzle to spray the titanate coupling agent ...

Embodiment 3

[0035] Prepare flame retardant A and flame retardant B according to the weight parts of Example 3 in Table 1, wherein the specific preparation process of flame retardant A is: select the red phosphorus micropowder with a particle size of less than 1800 meshes and coat it with two layers of different packaging materials The inner packing material is inorganic aluminum hydroxide, the outer packing material is melamine resin, and the weight ratio of each component is red phosphorus: aluminum hydroxide: melamine resin = 70:20:10. The specific preparation process of flame retardant B is: put melamine cyanurate and magnesium hydroxide with a particle size of less than 2000 mesh into a high-speed mixer, and heat up to 70-95°C while stirring; The coupling agent is pumped into the high-speed mixer, and the end of the pump must be connected with a spiral hollow cone nozzle, so that the silane coupling agent is sprayed out in a mist form. The dosage of the silane coupling agent is 0.5% of...

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Abstract

The present invention belongs to the technical field of a new material, and provides a multilayer coated red phosphorus low smoke halogen-free flame retardant polyolefin cable sheath material and a preparation method thereof. The sheath material comprises the following components, by weight, 30-70 parts of a matrix resin A, 30-70 parts of a matrix resin B, 5-30 parts of a compatibilizer, 5-40 parts of a flame retardant agent A, 10-40 parts of a flame retardant agent B, 0.1-2 parts of a lubricant, and 0.1-1 part of an antioxidant. The preparation method comprises the following steps: A, extruding; and B, carrying out granulation on the extruded material by a granulator to obtain the sheath material finished product. Advantages of the material of the present invention are that: the sheath material is prepared by matching the flame retardant agent A and the flame retardant agent B with the polyolefin elastomer raw material, such that characteristics of halogen-free property and good low smoke flame retardation effect are provided, and advantages of good physical property, good water resistance and less dripping are provided; and the preparation method has a simple preparation process, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a polyolefin cable sheath material, in particular to a multi-layer coated red phosphorus low-smoke halogen-free flame-retardant polyolefin cable sheath material and a preparation method, belonging to the technical field of new materials. Background technique [0002] Polyolefin elastomer material has good processability and elasticity, and is very suitable as raw material for various extruded wire sheaths. However, due to the strong flammability of polyolefin elastomer materials, when a fire occurs in the surrounding environment of wires and cables made of them, the flame will quickly spread along the cable to the entire line, resulting in the spread and expansion of the flame. Therefore, flame retardant wires and cables containing flame retardants should be selected. At present, flame retardants mainly include organic and inorganic, halogen and non-halogen. Organic flame retardants are represented by bromine-based, phosphoru...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L23/00C08K13/06C08K9/10C08K3/02C08K3/38C08L27/18C08K9/04C08K9/06C08K3/22C08K5/3492B29B9/06B29B7/00H01B7/295
Inventor 张煜杰刘华余玲胡建友张文阳
Owner ZHEJIANG SHIP ELECTRONICS TECH
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