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Flame-retardant wear-resisting modified polypropylene material and preparation method thereof

A polyethylene and modified technology, which is applied in the field of polymer material processing, can solve the problems of poor compatibility and low mechanical properties of wollastonite/polypropylene composite materials, so as to improve weather resistance, mechanical properties and weather resistance, The effect of reducing damage

Inactive Publication Date: 2015-02-25
解波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, Chinese patent CN102532692A discloses a wollastonite-modified polypropylene composite material, which uses wollastonite with an aspect ratio of 3:1-20:1 to fill and modify polypropylene, which significantly improves the polypropylene material. Flystone impact resistance, but poor mechanical properties of wollastonite / polypropylene composite due to poor compatibility between wollastonite and polypropylene

Method used

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  • Flame-retardant wear-resisting modified polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Mix 10 parts of glass fiber with 0.01 part of acid scavenger calcium oxide;

[0052] (2) Add 100 parts of polyethylene, 10 parts of flame retardant halogen-free nitrogen and phosphorus flame retardant, 1 part of acicular wollastonite, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168, and 1 part of light stabilizer 770 , 1 part of compatibilizer PP-g-MAH, 0.3 part of lubricant butyl stearate and mix in high mixer for 1-3min;

[0053] (3) Add the mixture in (2) to a twin-screw extruder with a temperature of 170-220°C in each zone and a speed of 150 rpm, and then add the mixture in (1) to the side feeding port of the extruder, After melt extrusion granulation, water cooling and pelletizing, the modified polyethylene material can be obtained.

[0054]

Embodiment 2

[0056] (1) Mix 20 parts of glass fiber with 0.05 part of acid scavenger zinc oxide;

[0057] (2) 100 parts of polyethylene, 10 parts of flame retardant decabromodiphenylethane, 0.5 parts of acicular wollastonite, 0.1 parts of antioxidant 1010, 0.2 parts of antioxidant 168, 0.5 parts of light stabilizer 944, 3 parts of compatibilizer PP-g-GMA and 0.2 parts of lubricant liquid paraffin are mixed in a high mixer for 1-3 minutes;

[0058] (3) Add the mixture in (2) to a twin-screw extruder with a temperature of 170-220°C in each zone and a speed of 200 rpm, and then add the mixture in (1) to the side feeding port of the extruder, After melt extrusion granulation, water cooling and pelletizing, the modified polyethylene material can be obtained.

[0059]

Embodiment 3

[0061] (1) Mix 30 parts of glass fiber with 0.1 part of acid scavenger hydrotalcite;

[0062] (2) 100 parts of polyethylene, 15 parts of flame retardant octabromo-S ether, 1 part of acicular wollastonite, 0.2 parts of 1098 antioxidants, 0.2 parts of antioxidant 168, 0.1 parts of light stabilizer 770, and 3 parts of solvent EPDM-g-MAH, 4 parts of EPDM-g-GMA, 0.1 part of lubricant butyl stearate) Mix in high mixer for 1-3 minutes;

[0063](3) Add the mixture in (2) to a twin-screw extruder with a temperature of 170-220°C in each zone and a speed of 250 rpm, and then add the mixture in (1) to the side feeding port of the extruder, After melt extrusion granulation, water cooling and pelletizing, the modified polyethylene material can be obtained.

[0064]

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Abstract

The present invention relates to a flame-retardant wear-resisting modified polypropylene material which comprises the following raw materials by weight: 100 parts of polyethylene, 10-100 parts of acicular wollastonite, 10-30 parts of a flame retardant, 10-50 parts of glass fiber, 0.01-0.5 part of an acid removing agent, 0.2-0.5 part of an antioxidant, 0.1-1 part of a light stabilizer, 0.1-0.7 part of a compatible agent, and 0.1-0.3 part of a lubricant; and the present invention provides a preparation method of the modified polyethylene material. The flame-retardant wear-resisting modified polypropylene material uses the acicular wollastonite as an anti dripping agent of the flame retardant and the glass fiber as a filling reinforcing agent, and improves the fire retardant properties, mechanical properties and wear resistance of the material.

Description

[0001] technical field [0002] The invention belongs to the technical field of polymer material processing, and in particular relates to a flame-retardant and wear-resistant modified polyethylene material and a preparation method thereof. [0003] Background technique [0004] Due to its low density, low price, good processability and excellent comprehensive performance, polyethylene is widely used in automotive interior and exterior trims and electronic housings, and is currently one of the most used thermoplastics. However, due to the low heat resistance and rigidity of polyethylene, it is necessary to add talcum powder, glass fiber, etc. to improve its heat resistance and mechanical properties through modification. [0005] With the development of modern science and technology, people have more and more stringent requirements on the flame retardancy of polyethylene, requiring it to meet certain flame retardancy requirements, such as: V0 level or higher level of UL-94. ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/06C08K9/02C08K7/10C08K7/14C08K3/22C08K3/26C08J5/08
CPCC08L23/06C08K2201/003C08K2201/016C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L2205/08C08L51/06C08K13/04C08K7/14C08K7/10C08K2003/2206C08K5/526C08K5/101C08L91/06C08K2003/2296C08K5/03C08L51/04C08K2003/265C08K5/372C08L51/003C08K3/2279C08K5/20
Inventor 解波
Owner 解波
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