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Special halogen-free low-smoke flame-retardant polyolefin sheath material for B1-grade cable

A polyolefin sheath, low-smoke and flame-retardant technology, applied to circuits, electrical components, plastic/resin/wax insulators, etc., to achieve high stability and applicability, good compatibility, and small thermal expansion and deformation effects

Pending Publication Date: 2021-10-22
杭州永通新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since clay is not an effective flame retardant, it needs to work synergistically with other halogen-free flame retardant systems to achieve effective flame retardant effects

Method used

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  • Special halogen-free low-smoke flame-retardant polyolefin sheath material for B1-grade cable
  • Special halogen-free low-smoke flame-retardant polyolefin sheath material for B1-grade cable
  • Special halogen-free low-smoke flame-retardant polyolefin sheath material for B1-grade cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The special halogen-free low-smoke flame-retardant polyolefin sheathing material for B1 cables includes the following components:

[0059] Ethylene-vinyl acetate copolymer: 70 parts,

[0060] Polyolefin elastomer: 10 parts,

[0061] Metallocene linear low density polyethylene: 10 parts;

[0062] Compatibilizer: 10 parts.

[0063] Halogen-free flame retardant and synergist: 120 parts;

[0064] Powder surface modifier: 1.2 parts;

[0065] Lubricant: 3 parts;

[0066] Antioxidant: 1 part.

[0067] Described ethylene-vinyl acetate copolymer is the ethylene-vinyl acetate copolymer of vinyl acetate content 18%;

[0068] The polyolefin elastomer is one or more of ethylene-butene copolymers and ethylene-octene copolymers;

[0069] The compatibilizer is maleic anhydride grafted polyethylene, maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted polyethylene-methyl acrylate copolymer, maleic anhydride grafted ethylene-butene One or more of co...

Embodiment 2

[0086] The special halogen-free low-smoke flame-retardant polyolefin sheathing material for B1 cables includes the following components:

[0087] Ethylene-vinyl acetate copolymer: 80 parts,

[0088] Polyolefin elastomer: 15 parts,

[0089] Metallocene linear low density polyethylene: 15 parts;

[0090] Compatibilizer: 20 parts.

[0091] Halogen-free flame retardant and synergist: 250 parts;

[0092] Powder surface modifier: 3 parts;

[0093] Lubricant: 8 parts;

[0094] Antioxidant: 3 parts.

[0095] Described ethylene-vinyl acetate copolymer is the ethylene-vinyl acetate copolymer of vinyl acetate content 28%;

[0096] The polyolefin elastomer is one or more of ethylene-butene copolymers and ethylene-octene copolymers;

[0097] The compatibilizer is maleic anhydride grafted polyethylene, maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted polyethylene-methyl acrylate copolymer, maleic anhydride grafted ethylene-butene One or more of cop...

Embodiment 3

[0114] The special halogen-free low-smoke flame-retardant polyolefin sheathing material for B1 cables includes the following components:

[0115] Ethylene-vinyl acetate copolymer: 72 parts,

[0116] Polyolefin elastomer: 12 parts,

[0117] Metallocene linear low density polyethylene: 13 parts;

[0118] Compatibilizer: 15 parts.

[0119] Halogen-free flame retardant and synergist: 210 parts;

[0120] Powder surface modifier: 2 parts;

[0121] Lubricant: 5 parts;

[0122] Antioxidant: 2 parts.

[0123] Described ethylene-vinyl acetate copolymer is the ethylene-vinyl acetate copolymer of vinyl acetate content 21%;

[0124] The polyolefin elastomer is one or more of ethylene-butene copolymers and ethylene-octene copolymers;

[0125] The compatibilizer is maleic anhydride grafted polyethylene, maleic anhydride grafted ethylene-vinyl acetate copolymer, maleic anhydride grafted polyethylene-methyl acrylate copolymer, maleic anhydride grafted ethylene-butene One or more of cop...

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Abstract

The invention provides a special halogen-free low-smoke flame-retardant polyolefin sheath material for a B1-grade cable, and belongs to the technical field of new materials. The problem of low stability in the prior art is solved. The special halogen-free low-smoke flame-retardant polyolefin sheath material for the B1-grade cable comprises the following components in parts by weight: 70-80 parts of ethylene-vinyl acetate copolymer, 10-15 parts of olefin elastomer, 10-15 parts of metallocene linear low-density polyethylene, 10-20 parts of a compatilizer, 120-250 parts of a halogen-free flame retardant and a synergistic agent; 2-3 parts of a powder surface modifier; 3-8 parts of a lubricant; and 1-3 parts of an antioxidant. The halogen-free low-smoke flame-retardant polyolefin sheath material special for the B1-level cable is high in stability.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a halogen-free low-smoke flame-retardant polyolefin sheath material for B1-level cables. Background technique [0002] Since the 1980s, halogen and halogen-antimony flame retardants have dominated the entire flame retardant market, such as decabromodiphenyl ether, tetrabromobisphenol A, chlorinated paraffin, and antimony trioxide. [0003] However, when halogen-containing flame-retardant materials burn, they release a large amount of smoke and toxic and harmful hydrogen halide gas. Because the diffusion speed is much faster than the flame diffusion speed, it is easy to hinder the rapid evacuation of personnel and fire extinguishing work, which seriously affects the safety of people's lives and property. According to relevant statistics, the statistical results show that more than 85% of the causes of death in fires are related to smoke, and most of them die after inhaling smo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/06C08K3/22C08K3/26C08K3/38C08K3/34C08K9/10C08K3/02H01B3/44B29C48/154B29C48/32
CPCC08L23/0853H01B3/441H01B3/448B29C48/154B29C48/32C08K2201/011C08K2003/387C08K2003/2224C08K2003/2227C08K2003/026C08L2201/02C08L2201/22C08L2203/202C08L2205/025C08L2205/035C08L23/0815C08L51/06C08K3/22C08K3/26C08K3/38C08K3/346C08K3/34C08K9/10C08K3/02
Inventor 刘云龙朱幼明徐晓东
Owner 杭州永通新材料有限公司