Ultrahigh-toughness flame-retardant polypropylene composite material and preparation method thereof

A technology of composite materials and polypropylene, which is applied in the field of polypropylene composite materials and its preparation, can solve the problems of material mechanical properties, material rigidity reduction, impact performance reduction, etc., to achieve continuity, high flame retardancy, and maintenance The effect of completeness

Active Publication Date: 2013-03-13
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since polypropylene is a flammable material, its oxygen index (LOI) is only about 18, and it is necessary to add a flame retardant to improve its flame retardant performance
However, when a large amount of flame retardant is added to polypropylene, the mechanical properties of the material are often greatly affected, especially the impact properties drop rapidly, and the impact strength is significantly reduced
[0003] The method commonly used to toughen polypropylene materials is to add an appropriate amount of thermoplastic elastomers, such as POE (polyolefin elastomer), SBS (styrene-butadiene-styrene block copolymer), EPDM (ethylene-propylene-diene rubber) ), etc., the addition of elastomers can greatly improve the toughness of thermoplastic resins, but at the same time it will reduce the rigidity of the material, making it difficult to improve the toughness of the material without losing other properties of the material

Method used

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  • Ultrahigh-toughness flame-retardant polypropylene composite material and preparation method thereof
  • Ultrahigh-toughness flame-retardant polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Preparation of PET fiber reinforced toughened polypropylene composite material:

[0055] Polypropylene 66.1%, maleic anhydride grafted polypropylene 3%, antioxidant 10100.2%, antioxidant 1680.4%, lubricant amide wax 0.3% are plasticized and melted at a temperature of 180-200 ℃ to obtain a polypropylene resin Melt; continuous PET (polyethylene terephthalate) fibers are impregnated through the melt of the polypropylene resin such that the PET fibers are completely wetted out. Wherein, the continuous PET fiber is drawn from the creel, the tension is adjusted by the tension roller, and enters the melt impregnation die, and the dispersion and infiltration of the fiber are realized in the die, and the fiber content is controlled to be 30% by the outlet of the fiber of the die. %, cooled and solidified, and cut into 10mm length by pelletizer to obtain PET fiber reinforced toughened polypropylene composite material.

[0056] (2) Preparation of decabromodiphenylethane flame...

Embodiment 2

[0061] (1) Preparation of PET fiber reinforced toughened polypropylene composite material:

[0062] Plasticize and melt 66.4% polypropylene, 3% copolymer of glycidyl methacrylate and polypropylene, 10100.2% antioxidant, and 1680.4% antioxidant at a temperature of 180-200°C to obtain a polypropylene resin melt ; The continuous PET (polyethylene terephthalate) fiber is impregnated through the melt of the polypropylene resin, so that the PET fiber is completely soaked. Wherein, the continuous PET fiber is drawn from the creel, the tension is adjusted by the tension roller, and enters the melt impregnation die, and the dispersion and infiltration of the fiber are realized in the die, and the fiber content is controlled to be 30% by the outlet of the fiber of the die. %, cooled and solidified, and cut into 10mm length by pelletizer to obtain PET fiber reinforced toughened polypropylene composite material.

[0063] (2) Preparation of ammonium polyphosphate flame retardant masterbat...

Embodiment 3

[0068] (1) Preparation of nylon 66 fiber reinforced toughened polypropylene composite material:

[0069] Polypropylene 55.4%, maleic anhydride grafted polypropylene 4%, antioxidant 10980.2%, antioxidant 1680.4% are plasticized and melted at a temperature of 180-200°C to obtain a polypropylene resin melt; continuous nylon 66 The fibers are impregnated with the melt of the polypropylene resin so that the nylon 66 fibers are completely wetted. Wherein, described continuous nylon 66 fiber is drawn by creel, adjusts tension through tension roller, enters melt impregnation die head, realizes the dispersion and infiltration of fiber in die head, the content of controlling fiber by the outlet of the fiber of die head is 40%, cooled and solidified, and cut into 12mm length by pelletizer to obtain nylon 66 fiber reinforced toughened polypropylene composite material.

[0070] (2) Preparation of decabromodiphenylethane flame retardant masterbatch:

[0071] Add 59.7% polypropylene, 30% d...

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Abstract

The invention belongs to the technical field of polymer materials, and relates to an ultrahigh-toughness flame-retardant polypropylene composite material and a preparation method thereof; the composite material comprises the following components by weight: 50-60% of an organic fiber-reinforced and toughened polypropylene composite material, and 40-50% of flame-retardant master batch. Compared with prior art, the material both maintains the flame retardation performance and realizes ultrahigh toughness, and has excellent tensile and bending properties.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene is a general-purpose plastic widely used in the electrical and electronic industries. However, since polypropylene is a flammable material, its oxygen index (LOI) is only about 18, and it is necessary to add a flame retardant to improve its flame retardant performance. However, when a large amount of flame retardant is added to polypropylene, the mechanical properties of the material are often greatly affected, especially the impact properties drop rapidly, and the impact strength is significantly reduced. [0003] The method commonly used to toughen polypropylene materials is to add an appropriate amount of thermoplastic elastomers, such as POE (polyolefin elastomer), SBS (styrene-butadiene-styrene block copolymer), EPDM (ethylene-propylene-diene rubber) ), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08L67/02C08L77/06C08K13/02C08K5/03C08K3/22C08K3/32B29C70/52B29B9/00B29B7/00
Inventor 肖玲玲
Owner HEFEI GENIUS NEW MATERIALS
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