Low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer as well as preparation method and application thereof

A thermoplastic polyolefin and elastomer technology, which is applied in the field of polyolefin elastomers, can solve problems such as secondary disasters, achieve low smoke density, increase stretching, and improve use safety

Inactive Publication Date: 2017-10-17
ADVANCED THERMOPLASTIC POLYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, halogen-containing flame-retardant materials will produce a large amount of smoke and toxic and corrosive gases when burned, and the gas diffusion rate is much faster than the flame, thus causing serious "secondary disasters"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer, comprising the following raw materials in parts by weight:

[0056] SEBS 25 copies

[0057] 15 parts polypropylene

[0058] Polyethylene 5 parts

[0059] 2 parts ethylene propylene rubber

[0060] Halogen-free flame retardant 10 parts

[0061] Smoke suppressant 2 parts

[0062] Compatibilizer 3 parts

[0063] Antioxidant 0.1 parts

[0064] Processing aid 0.5 parts.

[0065] The polypropylene is homopolypropylene.

[0066] The polyethylene is high-density polyethylene.

[0067] The halogen-free flame retardant is ammonium phosphate, ammonium polyphosphate, modified ammonium polyphosphate or aluminum hypophosphite.

[0068] The smoke suppressant is a molybdenum compound.

[0069] The compatibilizer is polypropylene grafted maleic anhydride.

[0070] The antioxidant is tetrakis[methylene-3,5-(di-tert-butyl-4-hydroxy-phenyl)propionate]pentaerythritol ester.

[0071] The processing aid i...

Embodiment 2

[0078] A low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer, comprising the following raw materials in parts by weight:

[0079] SEBS 30 parts

[0080] Polypropylene 18 parts

[0081] Polyethylene 8 parts

[0082] 4 parts ethylene propylene rubber

[0083] Halogen-free flame retardant 25 parts

[0084] Smoke suppressant 6 parts

[0085] 3.5 parts of compatibilizer

[0086] Antioxidant 0.3 parts

[0087] Processing aid 0.8 part.

[0088] The polypropylene is a copolymerized polypropylene.

[0089] The polyethylene is medium density polyethylene.

[0090] The halogen-free flame retardant is melamine and its compounds.

[0091] The smoke suppressant is an iron compound.

[0092] The compatibilizer is styrene-ethylene-butadiene-styrene copolymer grafted maleic anhydride.

[0093] The antioxidant is N,N'-bis[[3-(3,5)-di-tert-butyl-4-hydroxyphenyl]propionyl]hexamethylenediamine.

[0094] The processing aid is white mineral oil or paraffin oil.

[...

Embodiment 3

[0101] A low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer, comprising the following raw materials in parts by weight:

[0102] SEBS 35 parts

[0103] 20 parts polypropylene

[0104] Polyethylene 10 parts

[0105] 6 parts ethylene propylene rubber

[0106] Halogen-free flame retardant 40 parts

[0107] Smoke suppressant 12 parts

[0108] Compatibilizer 4 parts

[0109] Antioxidant 0.5 parts

[0110] 1.2 parts of processing aids.

[0111] The polypropylene is random copolymerized polypropylene.

[0112] The polyethylene is low density polyethylene.

[0113] The halogen-free flame retardant is zinc borate, montmorillonite or clay.

[0114] The smoke suppressant is a metal oxide.

[0115] The compatibilizer is styrene-maleic anhydride random copolymer.

[0116] The antioxidant is tris[2,4-di-tert-butylphenyl]phosphite.

[0117] The processing aid is simethicone.

[0118] A preparation method of a low-smoke halogen-free flame-retardant thermopl...

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Abstract

The invention relates to the technical field of polyolefin elastomers and in particular relates to a low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer as well as a preparation method and application thereof. The low-smoke halogen-free flame-retardant thermoplastic polyolefin elastomer is prepared from the following raw materials in parts by weight: 25-45 parts of SEBS (Styrene Based Block Polymer), 15-25 parts of polypropylene, 5-15 parts of polyethylene, 2-10 parts of ethylene propylene rubber, 10-70 parts of a halogen-free flame retardant, 2-20 parts of a smoke suppressant, 3-5 parts of a compatilizer, 0.1-1.0 part of an antioxidant and 0.5-2.0 parts of processing aids. According to the thermoplastic polyolefin elastomer disclosed by the invention, with the adoption of the raw materials, the weight ratio of the raw materials is strictly controlled, so that the prepared thermoplastic polyolefin elastomer is excellent in flame-retardant effect, low in smoke density, halogen-free, environment-friendly, excellent in temperature resistance and weather resistance, high in strength, excellent in impact resistance and excellent in overall performance.

Description

technical field [0001] The invention relates to the technical field of polyolefin elastomers, in particular to a low-smoke, halogen-free, flame-retardant thermoplastic polyolefin elastomer and its preparation method and application. Background technique [0002] At present, cables are widely used in the fields of power systems, information transmission, and instrumentation systems. However, the cable covering materials made of traditional polymer material PVC are prone to fire and combustion during use, causing fires. Due to the The chlorine content is as high as 60%, which produces fumes of toxic gases such as hydrogen halides and carbon monoxide during combustion. [0003] With the increasing awareness of environmental protection, people are constantly looking for new materials to replace PVC as the sheath of cables. For example, styrene-ethylene / butylene-styrene block copolymer (SEBS) is a new type of thermoplastic elastomer prepared by selective hydrogenation of styrene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L23/14C08L23/06C08L23/08C08L23/16C08L51/06C08L51/00C08L35/06C08K3/32C08K5/134C08K5/3492C08K5/20C08K3/38C08K3/34C08K5/526H01B3/30
CPCC08L53/025C08K2003/322C08K2003/323C08K2003/387C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/035C08L2207/062C08L2207/066H01B3/307C08L23/12C08L23/06C08L23/16C08L51/06C08K3/32C08K5/1345C08L23/14C08L51/006C08K5/34922C08K5/20C08L35/06C08L83/04C08K3/38C08K3/346C08K5/526C08L23/0815C08K3/22C08K5/521C08K5/524
Inventor 李同兵刘方达钟荣栋苏俐娇
Owner ADVANCED THERMOPLASTIC POLYMER TECH
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