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High carbon formation type low-smoke, zero-halogen and flame-retardant polyolefin cable material

A technology of polyolefin cable material and inorganic flame retardant, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problem of weak carbon forming ability and difficult to achieve flame retardancy, and achieve hard carbon layer and flame retardancy Excellent effect and strong carbon forming ability

Inactive Publication Date: 2018-06-19
中广核拓普(四川)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When preparing halogen-free low-smoke flame-retardant cables, it is often necessary to use halogen-free low-smoke flame-retardant polyolefin cable materials with high flame retardancy to meet the flame-retardant effects of A, B, and C bundles; It is difficult to achieve the purpose of flame retardant due to the weak carbon-forming ability of mineral flame retardants.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this embodiment, the high-carbon low-smoke halogen-free flame-retardant polyolefin cable material includes the following components by weight:

[0027] Base resin 100 parts

[0028] Hydroxide inorganic flame retardant 120 parts

[0029] Lubricant 0.5 parts

[0030] Antioxidant 0.1 part

[0031] Carbonizer 1 part.

[0032] The base resin includes the following components in parts by weight:

[0033] Metallocene linear low density polyethylene (MLLDPE) 18 parts

[0034] 16 parts of maleic anhydride graft

[0035] 50 parts of ethylene vinyl acetate copolymer (EVA)

[0036] 16 parts of ethylene octene copolymer (POE).

[0037] The hydroxide inorganic flame retardant is a mixture of aluminum hydroxide and magnesium hydroxide, and the ratio of aluminum hydroxide to magnesium hydroxide is 1:2.

[0038] The lubricant is silicone masterbatch.

[0039] The antioxidant is antioxidant 1010 (tetra [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester) and dilauryl thiodiprop...

Embodiment 2

[0042] In this embodiment, the high-carbon low-smoke halogen-free flame-retardant polyolefin cable material includes the following components by weight:

[0043] Base resin 100 parts

[0044] Hydroxide inorganic flame retardant 150 parts

[0045] Lubricant 3 parts

[0046] Antioxidant 0.5 parts

[0047] Carbon-forming agent 5 parts.

[0048] The base resin includes the following components in parts by weight:

[0049] Metallocene linear low density polyethylene 19 parts

[0050] 8 parts of maleic anhydride graft

[0051] 65 parts of ethylene vinyl acetate copolymer

[0052] 8 parts of ethylene octene copolymer.

[0053] The hydroxide inorganic flame retardant is a mixture of aluminum hydroxide and magnesium hydroxide, and the ratio of aluminum hydroxide to magnesium hydroxide is 2:1.

[0054] The lubricant is silicone masterbatch.

[0055] The antioxidant is a mixture of 1010 and dilauryl thiodipropionate.

[0056] The carbon forming agent is a mixture of encapsulated red phosphorus and ammonium...

Embodiment 3

[0058] In this embodiment, the high-carbon low-smoke halogen-free flame-retardant polyolefin cable material includes the following components by weight:

[0059] Base resin 100 parts

[0060] Hydroxide inorganic flame retardant 190 parts

[0061] Lubricant 5 parts

[0062] Antioxidant 0.8 parts

[0063] Carbon forming agent 10 parts.

[0064] The base resin includes the following components in parts by weight:

[0065] Metallocene linear low density polyethylene 36 parts

[0066] 10 parts of maleic anhydride graft

[0067] 45 parts of ethylene vinyl acetate copolymer

[0068] 9 parts of ethylene octene copolymer.

[0069] The hydroxide inorganic flame retardant is a mixture of aluminum hydroxide and magnesium hydroxide, and the ratio of aluminum hydroxide to magnesium hydroxide is 5:1.

[0070] The lubricant is silicone masterbatch.

[0071] The antioxidant is a mixture of 1010 and dilauryl thiodipropionate.

[0072] The carbon forming agent is a mixture of encapsulated red phosphorus and ammoni...

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Abstract

The invention discloses a high carbon formation type low-smoke, zero-halogen and flame-retardant polyolefin cable material. The cable material is prepared from components in parts by weight as follows: 100 parts of basic resin, 120-190 parts of a hydroxide inorganic flame retardant, 0.5-5 parts of a lubricating agent, 0.1-0.8 parts of an antioxidant and 1-10 parts of a carbon forming agent. The mineral flame retardant of hydroxide is used as a gas source, the basic resin is used as a carbon source, meanwhile, multiple acid sources are added, and the cable material has the advantages of high carbon forming capacity and hard carbon layer, has a very excellent flame retardant effect and has very good flame retardant effects on electric wire and cable bundles when used in electric wire and cable sheaths.

Description

Technical field [0001] The invention relates to the technical field of cables, in particular to a high-carbon low-smoke halogen-free flame-retardant polyolefin cable material. Background technique [0002] Usually a rope-like cable formed by twisting several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center. The entire outer bread has a high degree of insulation. The covering layer. The cable has the characteristics of internal electricity and external insulation. [0003] Flame retardant cable is a kind of cable. Flame-retardant cable refers to a cable whose sample is burned under specified test conditions, and after the test fire source is removed, the flame spreads only within a limited range, and the residual flame or residual burn can be extinguished by itself within a limited time. The fundamental characteristic of flame-retardant cables is that they may be burned out and cannot opera...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/06C08K3/22C08K9/10C08K3/02C08K3/32H01B3/44
CPCC08K2003/026C08K2003/2224C08K2003/2227C08K2003/323C08L23/0853C08L2201/02C08L2201/22C08L2203/202C08L2205/025C08L2205/035H01B3/441C08L23/0815C08K13/06C08K3/22C08K9/10C08K3/02C08K3/32
Inventor 邓连天沈斌
Owner 中广核拓普(四川)新材料有限公司
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