Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof

A technology of power cable and sheath material, which is applied in the direction of insulated cables, cables, circuits, etc., and can solve problems such as public safety hazards, leakage, and environmental damage

Inactive Publication Date: 2014-04-30
ORIGIANL DOW ADVANCED COMPOUNDS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When traditional halogen-containing materials are burned, a large amount of smoke and corrosive halides are released, which will cause damage to the human body and the environment
At present, most of the high-flame-retard

Method used

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  • Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof
  • Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof
  • Argil-modified low-smoke zero-halogen power cable sheath material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The cable material prepared by the present invention can pass the JB / T10707 standard.

[0046] In addition, the cable obtained by the cable material prepared by the present invention passes the flame retardancy of the bundled type C in IEC60332-3-24.

Embodiment approach

[0074] A clay-modified low-smoke halogen-free power cable sheathing material, which comprises the following components in mass fraction:

[0075]

[0076] in:

[0077] The clay-modified low-smoke halogen-free power cable sheathing material, the ethylene-vinyl acetate copolymer has a vinyl acetate content of 20-40% by mass and a melt index of 3-7g / min.

[0078] The clay-modified low-smoke halogen-free power cable sheathing material, the polymer compatibilizer is maleic anhydride grafted EPDM rubber, maleic anhydride grafted polyethylene or maleic anhydride One or two of grafted ethylene-vinyl acetate copolymers.

[0079] In the clay-modified low-smoke halogen-free power cable sheathing material, the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide or barium sulfate.

[0080] In the clay-modified low-smoke halogen-free power cable sheathing material, the synergistic flame retardant is one or more of zinc oxide, clay, and montmorillonite.

[0081]...

Embodiment

[0094] The raw material formulations of the embodiments of the present invention and comparative examples are shown in Table 1.

[0095] Table 1 The low-smoke halogen-free power cable sheath material embodiment and comparative ratio formula (number of parts)

[0096]

[0097] in:

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Abstract

The invention provides an argil-modified low-smoke zero-halogen power cable sheath material which comprises the following components in parts by mass: 40-70 parts of ethylene-vinyl acetate copolymer, 20-40 parts of linear low-density polyethylene, 10-20 parts of high-molecular compatilizer, 130-160 parts of flame retardant, 5-20 parts of synergistic flame retardant, 2-4 parts of surface treating agent, 0.5-1 part of antioxidant, 5-7 parts of carbon black masterbatch and 1-4 parts of processing aid, wherein the flame retardant contains barium sulfate, and the synergistic flame retardant contains argil. The invention also provides a preparation method of the power cable sheath material.

Description

technical field [0001] The invention relates to a cable sheathing material, in particular to the field of a low-smoke, halogen-free, flame-retardant power cable sheathing material. Background technique [0002] In the past, the flame retardant materials in the domestic wire and cable industry were mostly halogen-containing flame retardant materials, and although some high-efficiency flame retardants can bring high flame retardant performance, they either need to be used in combination with halogen flame retardants. , or most of them are imported materials, and few manufacturers can accept the cost. When traditional halogen-containing materials are burned, a large amount of smoke and corrosive halides are released, which will cause damage to the human body and the environment. At present, most of the high-flame-retardant cable materials use high-filling methods, but high-filling brings many problems such as poor mechanical properties and poor crack resistance. Cracks and lea...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K3/30C08K3/22C08K3/34C08K5/134C08K5/372H01B7/295B29B9/06
CPCC08L23/0853B29B9/06B29C48/92B29C2948/92704C08L2201/02C08L2201/22C08L2203/202C08L2205/035C08L2205/08H01B3/441H01B7/295C08L23/0815C08L51/06C08L91/06C08K13/02C08K2003/2224C08K2003/2227C08K2003/3045C08K3/04C08K3/34C08L23/06C08K2003/2296C08K3/346
Inventor 吴动宋刚
Owner ORIGIANL DOW ADVANCED COMPOUNDS SHANGHAI
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