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High-temperature ageing resistant and flame-resistant polypropylene material used for corrugated pipes and preparation method of polypropylene material

A flame-retardant polypropylene and high-temperature-resistant technology, which is 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, easy rupture of corrugated pipes, and uneven surface of corrugated pipes, etc. It is not easy to squeeze and burst, the preparation method is simple and efficient, and the flame retardant effect is good.

Active Publication Date: 2019-08-02
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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  • High-temperature ageing resistant and flame-resistant polypropylene material used for corrugated pipes and preparation method of polypropylene material
  • High-temperature ageing resistant and flame-resistant polypropylene material used for corrugated pipes and preparation method of polypropylene material
  • High-temperature ageing resistant and flame-resistant polypropylene material used for corrugated pipes and preparation method of polypropylene material

Examples

Experimental program
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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 uniformly 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 h...

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 ageing resistant and flame-resistant polypropylene material used for corrugated pipes and a preparation method of the polypropylene material. The flame-resistant polypropylene material is prepared from co-polypropylene, a brominated flame retardant, an antimony flame retardant, a flame-retardant synergist, silicone master batch, a halogen absorber, an antioxidant and a toughening modifier. The preparation method of the polypropylene material is very simple and comprises steps as follows: firstly, all components are sufficiently and uniformly mixed inbatches, and then, extrusion, cooling, bracing and granulation are performed. The flame-resistant polypropylene material has a good flame retardant effect, has the flame-retardant grade up to grade UL92 V-2 and even grade V-0, has good high-temperature ageing resistance, can be baked at the temperature of 150 DEG C without embrittlement crack, is stable in processing performance, can realize continuous production, can allow laser carving and has smooth surfaces without granular sensation, the flame retardants are not separated, and the extruded corrugated pipes touch good and are not prone toburst by extrusion.

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 Applications(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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