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A high-temperature aging-resistant flame-retardant polypropylene material for bellows and its preparation method

A flame retardant polypropylene and high temperature resistant technology, applied in the field of high temperature aging resistant flame retardant polypropylene materials and their preparation, can solve problems such as affecting production efficiency and product quality, poor high temperature aging resistance, and bellows being prone to rupture, etc. To achieve the effects of not easy to squeeze and burst, good high temperature aging resistance, simple and efficient preparation method

Active Publication Date: 2021-07-02
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing flame retardant polypropylene material used for bellows is usually a halogen-antimony flame retardant system, which can basically meet the requirements of flame retardant performance, but due to the high amount of flame retardant added, the flame retardant cannot be used in polypropylene. Good dispersion is achieved, and it is easy to precipitate, resulting in the surface of the prepared bellows being not smooth, or even pimples, and the high temperature aging resistance is poor, and it is easy to break when extruding the bellows, which affects production efficiency and product quality

Method used

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  • A high-temperature aging-resistant flame-retardant polypropylene material for bellows and its preparation method
  • A high-temperature aging-resistant flame-retardant polypropylene material for bellows and its preparation method
  • A high-temperature aging-resistant flame-retardant polypropylene material for bellows and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes, its raw material composition is shown in the following table:

[0054] Table 1 A raw material composition table of a high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes

[0055]

[0056]

[0057] The preparation method of the above-mentioned high-temperature aging-resistant flame-retardant polypropylene material for bellows comprises the following steps:

[0058] 1) Add brominated flame retardants, antimony-based flame retardants, flame retardant synergists, silicone masterbatches, halogen absorbers and antioxidants into a high-speed mixer, mix evenly at 50°C, and then add copolymerized polypropylene and Toughness modifier, mixed evenly at 50°C;

[0059] 2) Transfer the material in the high-speed mixer to the extruder for extrusion (extrusion temperature is 170-190°C), cooling, stranding, and pelletizing to obtain high...

Embodiment 2

[0061] A high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes, its raw material composition is shown in the following table:

[0062] Table 2 A raw material composition table of a high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes

[0063]

[0064]

[0065] The preparation method of the above-mentioned high-temperature aging-resistant flame-retardant polypropylene material for bellows comprises the following steps:

[0066] 1) Add brominated flame retardants, antimony-based flame retardants, flame retardant synergists, silicone masterbatches, halogen absorbers and antioxidants into a high-speed mixer, mix evenly at 50°C, and then add copolymerized polypropylene and Toughness modifier, mixed uniformly at 50°C;

[0067] 2) Transfer the material in the high-speed mixer to the extruder for extrusion (extrusion temperature is 170-190°C), cooling, stranding, and pelletizing to obtain h...

Embodiment 3

[0069] A high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes, its raw material composition is shown in the following table:

[0070] Table 3 A raw material composition table of a high-temperature aging-resistant flame-retardant polypropylene material used for corrugated pipes

[0071]

[0072] The preparation method of the above-mentioned high-temperature aging-resistant flame-retardant polypropylene material for bellows comprises the following steps:

[0073] 1) Add brominated flame retardants, antimony-based flame retardants, flame retardant synergists, silicone masterbatches, halogen absorbers and antioxidants into a high-speed mixer, mix evenly at 50°C, and then add copolymerized polypropylene and Toughness modifier, mixed uniformly at 50°C;

[0074] 2) Transfer the material in the high-speed mixer to the extruder for extrusion (extrusion temperature is 170-190°C), cooling, stranding, and pelletizing to obtain high-temperat...

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Abstract

The invention discloses a high-temperature aging-resistant flame-retardant polypropylene material for bellows and a preparation method thereof. The flame-retardant polypropylene material is composed of copolymerized polypropylene, a brominated flame retardant, an antimony-based flame It is composed of effect agent, silicone masterbatch, halogen absorber, antioxidant and toughening modifier. The preparation method is very simple. First, the components are fully mixed in batches, and then extrusion, cooling, drawing, Finely dice. The flame-retardant polypropylene material of the present invention has a good flame-retardant effect, and the flame-retardant grade can reach UL94 V-2 level, or even V-0 level, has good high-temperature aging resistance, and can be baked at 150°C for 360 hours without brittle cracking , Stable processing performance, continuous production, laser engraving, smooth surface without graininess, no precipitation of flame retardant, good hand feeling of extruded bellows, not easy to squeeze and burst.

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite materials, and in particular relates to a high-temperature aging-resistant and flame-retardant polypropylene material used for corrugated pipes and a preparation method thereof. Background technique [0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the direction of folding and expansion. It is mainly used in construction, automobile and other industries. In recent years, with the increase in the amount of automobiles in my country, the demand for automotive wiring harness corrugated pipes has also increased significantly, and the performance requirements for automotive corrugated pipes have also been continuously improved, mainly for flame retardancy and aging performance. Different automobile factories have different flame retardant requirements, generally they are required to meet UL94V-2 or V-0 level, and the requirements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08L83/04C08L23/28C08K13/02C08K3/22C08K5/3492C08K5/03C08K5/06C08K3/26C08K5/134C08K5/526C08K5/1535
CPCC08K2201/003C08L23/14C08L2201/02C08L2201/08C08L2203/18C08L2205/035C08L2205/06C08L83/04C08L23/286C08K13/02C08K3/2279C08K5/34924C08K5/03C08K5/06C08K3/26C08K5/1345C08K5/526C08K5/1535
Inventor 沈旭渠陈锐彬刘俊陈新泰龚文幸田凯丽叶俊杰
Owner GUANGDONG JUSHI CHEM CO LTD
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