Low-friction low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A polyolefin cable material and low-friction technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve problems such as poor flexibility, achieve the effects of reducing water absorption, improving frost resistance, and improving dispersibility

Inactive Publication Date: 2020-09-22
上海方之德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of poor flexibility under low temperature conditions in related technologies, the first purpose of this application is to provide a low-friction, low-smoke, halogen-free, flame-retardant polyolefin cable material, which has the advantages of excellent low-temperature flexibility

Method used

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  • Low-friction low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
  • Low-friction low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
  • Low-friction low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1: A low-friction, low-smoke, halogen-free, flame-retardant polyolefin cable material, the components of its raw materials and their corresponding weights are shown in Table 1, wherein the particle size of magnesium hydroxide and aluminum hydroxide is 1- 5 μm, and prepared by the following steps:

[0056] Step 1: Put the ethylene-vinyl acetate copolymer into a heating and stirring tank and heat it to a molten state, set the heating temperature to 78°C, and spray the aqueous solution of hydrophobic surfactant while stirring the ethylene-vinyl acetate copolymer in the molten state , the concentration of the aqueous solution of the hydrophobic surfactant is 2.5%, until it is evenly stirred to obtain the first mixture;

[0057] Step 2, put aluminum hydroxide, magnesium hydroxide, oleic acid amide, silicone masterbatch, compatibilizer and antioxidant into a high-speed mixer and stir to mix evenly to obtain a second mixture;

[0058] Step 3, adding the second mixture...

Embodiment 2

[0060] Example 2: A low-friction, low-smoke, halogen-free, flame-retardant polyolefin cable material. The difference from Example 1 is that the components of the raw materials and their corresponding weights are shown in Table 1, and are prepared by the following steps get:

[0061] Step 1: Put the ethylene-vinyl acetate copolymer into a heating and stirring tank and heat it to a molten state, set the heating temperature to 80°C, and spray the aqueous solution of hydrophobic surfactant while stirring the ethylene-vinyl acetate copolymer in the molten state , the concentration of the hydrophobic surfactant aqueous solution is 2%, until the mixing is uniform, and the first mixture is obtained;

[0062] Step 2, put aluminum hydroxide, magnesium hydroxide, oleic acid amide, silicone masterbatch, compatibilizer and antioxidant into a high-speed mixer and stir to mix evenly to obtain a second mixture;

[0063] Step 3, adding the second mixture into a banbury mixer for high-pressure...

Embodiment 3

[0065] Example 3: A low-friction, low-smoke, halogen-free, flame-retardant polyolefin cable material. The difference from Example 1 is that the components of the raw materials and their corresponding weights are shown in Table 1, and are prepared by the following steps get:

[0066] Step 1, put the ethylene-vinyl acetate copolymer into a heating and stirring tank and heat it to a molten state, set the heating temperature to 77°C, and spray a hydrophobic surfactant aqueous solution on the molten ethylene-vinyl acetate copolymer while stirring , the concentration of the aqueous solution of the hydrophobic surfactant is 3%, until the mixing is uniform, and the first mixture is obtained;

[0067] Step 2, put aluminum hydroxide, magnesium hydroxide, oleic acid amide, silicone masterbatch, compatibilizer and antioxidant into a high-speed mixer and stir to mix evenly to obtain a second mixture;

[0068] Step 3, adding the second mixture into a banbury mixer for high-pressure banbury...

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Abstract

The invention discloses a low-friction low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof, and relates to the technical field of cable materials. Raw materials of the cable material comprise: matrix resin, a flame-retardant filler, a hydrophobic surfactant, a compatilizer, a slipping agent and an antioxidant; wherein the matrix resin comprises an ethylene-vinyl acetate copolymer and a propylene-ethylene copolymer; the flame-retardant filler comprises aluminum hydroxide and magnesium hydroxide; and the slipping agent comprises oleamide and siliconemaster batch. The cable material has excellent low-temperature flexibility. The preparation method comprises the following steps of: heating the ethylene-vinyl acetate copolymer to a molten state, and spraying a hydrophobic surfactant aqueous solution while stirring to obtain a first mixture; adding the flame-retardant filler, the slipping agent, the compatilizer and the antioxidant into the first mixture, and mixing the substances uniformly to obtain a second mixture, and performing high-pressure banburying; subjecting the first mixture, the second mixture and the propylene-ethylene copolymer to mixing granulation so as to obtain a final product. The prepared product is uniform and stable in quality.

Description

technical field [0001] The application relates to the technical field of cable materials, more specifically, it relates to a low-friction, low-smoke, halogen-free, flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] Traditional flame-retardant cables generally use polyvinyl chloride as the cable material. Although polyvinyl chloride has the characteristics of good flame retardancy, low price, and good craftsmanship, because it contains halogen, it will produce a large amount of hydrogen halide gas and concentrated Smoke, in the event of a fire, will cause "secondary hazards" and increase fire losses. Therefore, with the needs of public safety, low-smoke, halogen-free and flame-retardant polyolefin materials have gradually replaced polyvinyl chloride materials in the field of wire and cable for the manufacture of power cables, data communication cables and optical cables. [0003] In the Chinese invention patent with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/14C08L83/04C08K3/22C08K5/20C08K5/134C08K13/02C08K9/06C08K13/06C08J9/30H01B3/44
CPCC08L23/0853C08J9/30H01B3/441C08K2201/003C08K2003/2224C08K2003/2227C08L2201/02C08L2201/22C08L2203/202C08L2205/03C08L2205/02C08J2323/08C08J2423/14C08L23/14C08L83/04C08K3/22C08K5/20C08K5/1345C08K13/02C08K9/06C08K13/06
Inventor 董建东何亚丽
Owner 上海方之德新材料有限公司
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