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Halogen-free flame-retardant polyolefin sheath material as well as preparation method and application thereof

A polyolefin sheath and flame retardant technology, which is used in plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problems of impact resistance and processing performance, difficult processing, and easy cracking. The effect of improving flame retardancy and mechanical properties, excellent flame retardancy, and high catalytic efficiency

Pending Publication Date: 2022-02-18
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to obtain higher flame-retardant properties, the cable sheathing materials provided in the above-mentioned prior art have added a large amount of flame-retardant additives to the formula, thereby affecting the impact resistance and processability of the final product. , difficult to process and very easy to crack when used

Method used

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  • Halogen-free flame-retardant polyolefin sheath material as well as preparation method and application thereof
  • Halogen-free flame-retardant polyolefin sheath material as well as preparation method and application thereof
  • Halogen-free flame-retardant polyolefin sheath material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A halogen-free flame-retardant polyolefin sheathing material, comprising the following components in parts by weight:

[0051]

[0052] The ethylene-vinyl acetate copolymer provided in this example is derived from (Formosa Plastics Industry, 7470M), the metallocene polyethylene is derived from (Exxon, EXCEED), the thermoplastic elastomer is derived from (Sabick, 5070D), and the silane is Silane 172, the antioxidant is antioxidant 1010, and the maleic anhydride grafted polyethylene is derived from (Dongguan Zhangmutou Ke Ruida Plastics, W1H);

[0053] Its preparation method comprises the following steps:

[0054] (1) Mix magnesium hydroxide, aluminum hydroxide, nitrogen and silane at 100°C for 2.5 minutes to obtain a mixture;

[0055] (2) Mix the mixture obtained in part of step (1), ethylene-vinyl acetate copolymer, metallocene polyethylene, thermoplastic elastomer, compatibilizer, silicone oil and optional antioxidant at 50°C for 30 minutes for the first time , ad...

Embodiment 2

[0057] A halogen-free flame-retardant polyolefin sheathing material, comprising the following components in parts by weight:

[0058]

[0059] The ethylene-vinyl acetate copolymer provided in this example is derived from (Formosa Plastics Industry, 7470M), the metallocene polyethylene is derived from (Exxon, EXCEED), the thermoplastic elastomer is derived from (Sabick, 5070D), and the silane is Silane 172, the antioxidant is antioxidant 1010, and the maleic anhydride grafted polyethylene is derived from (Dongguan Zhangmutou Ke Ruida Plastics, W1H);

[0060] Its preparation method comprises the following steps:

[0061] (1) Mix magnesium hydroxide, aluminum hydroxide, nitrogen and silane at 110°C for 1 min to obtain a mixture;

[0062] (2) Mix the mixture obtained in part of step (1), ethylene-vinyl acetate copolymer, metallocene polyethylene, thermoplastic elastomer, compatibilizer, silicone oil and optional antioxidant for the first time at 40°C for 40 minutes , adding t...

Embodiment 3

[0064] A halogen-free flame-retardant polyolefin sheathing material, comprising the following components in parts by weight:

[0065]

[0066] The ethylene-vinyl acetate copolymer provided in this example is derived from (Formosa Plastics Industry, 7470M), the metallocene polyethylene is derived from (Exxon, EXCEED), the thermoplastic elastomer is derived from (Sabick, 5070D), and the silane is Silane 172, the antioxidant is antioxidant 1010, and the maleic anhydride grafted polyethylene is derived from (Dongguan Zhangmutou Ke Ruida Plastics, W1H);

[0067] Its preparation method comprises the following steps:

[0068] (1) Mix magnesium hydroxide, aluminum hydroxide, nitrogen and silane at 90°C for 5 minutes to obtain a mixture;

[0069] (2) Mix the mixture obtained in part of step (1), ethylene-vinyl acetate copolymer, metallocene polyethylene, thermoplastic elastomer, compatibilizer, silicone oil and optional antioxidant at 60°C for 20 minutes for the first time , addin...

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Abstract

The invention provides a halogen-free flame-retardant polyolefin sheath material as well as a preparation method and application thereof. The halogen-free flame-retardant polyolefin sheath material comprises specific parts of ethylene-vinyl acetate copolymer, metallocene polyethylene, a thermoplastic elastomer, a flame retardant, a compatilizer, and a combination of silane and silicone oil. Three resin matrixes are selected to be matched with one another, so that the powder filling capacity can be effectively improved; meanwhile, a silane surface treatment flame retardant is used and matched with a specific part of compatilizer and silicone oil, so that the internal lubrication of the material is enhanced, the flame retardant can be better fused in a resin matrix, and the halogen-free flame-retardant polyolefin sheath material can have excellent flame retardance under the condition that the addition amount of the flame retardant is relatively low; the problem that the anti-cracking performance is reduced due to excessive addition of the filler is avoided.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a halogen-free flame-retardant polyolefin sheath material and a preparation method and application thereof. Background technique [0002] As an indispensable part of the power system, wires and cables play an irreplaceable role in daily life, commerce, and industry. In recent years, with the improvement of the country's flame retardant and fire prevention standards and the improvement of the public's awareness of safety, improving the fire and fire prevention capabilities of wires and cables has become an important research direction. Halogen-containing flame-retardant cable materials will emit a lot of smoke and corrosive gases when burned, which hinders the escape routes of personnel in closed places, and has been gradually eliminated; halogen-free low-smoke flame-retardant cables are used in some key projects, such as subways, shopping malls, etc. It is widely used...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L83/04C08L51/06C08K9/06C08K3/22C08K5/3492H01B3/44
CPCC08L23/0853H01B3/441C08L2201/02C08L2201/22C08L2203/202C08L2207/04C08K2003/2224C08K2003/2227C08L2205/08C08L23/0815C08L83/04C08L51/06C08K9/06C08K3/22C08K5/34922
Inventor 赵帅王杰卢钱
Owner SUZHOU HENGLI COMM MATERIAL