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Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof

A technology of ultra-high molecular weight and composition, applied in the field of polymer materials and their molding and processing, can solve problems such as no literature reports, and achieve the effects of enhancing compatibility, improving processing rheological properties, and excellent antistatic effect.

Inactive Publication Date: 2012-05-02
CHINA NAT BLUESTAR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The present invention uses PPE, decabromodiphenyl ether and antimony trioxide as the core flame retardant system to modify ultra-high molecular weight polyethylene, which has not been reported in the literature

Method used

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  • Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof
  • Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof
  • Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Premixing: First, add polyphenylene ether, brominated flame retardant, and flame retardant synergist to the low-speed mixer in sequence according to the ratio shown in Table 1 for premixing. The mixing temperature is 50° C., the rotation speed of the mixer is 60 rpm, and the mixing time is 8 minutes. The three components are ground and mixed to form a PPE composite flame retardant. Then, add conductive carbon black, graphite, coupling agent, and compatibilizer in turn according to the ratio shown in Table 1, and continue mixing under the same conditions. The output is called Premix 1.

[0051] (2) High-speed mixing: add ultra-high molecular weight polyethylene, flow modifier, premix 1 in step (1), primary antioxidant and secondary antioxidant to the high-speed mixer in sequence according to the ratio shown in Table 1 premixed. The mixing temperature is 30° C., the rotation speed of the mixer is 200 rpm, and the mixing time is 5 minutes.

[0052] (3) Extrusion gr...

Embodiment 2

[0054] (1) Premixing: First, add polyphenylene ether, brominated flame retardant, and flame retardant synergist to the low-speed mixer in sequence according to the ratio shown in Table 1 for premixing. The mixing temperature is 55°C, the speed of the mixer is 50 rpm, and the mixing time is 10 minutes. The three components are ground and mixed to form a PPE composite flame retardant. Then, add conductive carbon black, graphite, coupling agent, and compatibilizer in turn according to the ratio shown in Table 1, and continue mixing under the same conditions. The output is called premix 2.

[0055] (2) High-speed mixing: add ultra-high molecular weight polyethylene, flow modifier, premix 2 in step (1), primary antioxidant and secondary antioxidant to the high-speed mixer in sequence according to the ratio shown in Table 1 premixed. The mixing temperature is 35° C., the rotation speed of the mixer is 150 rpm, and the mixing time is 4 minutes.

[0056] (3) Extrusion granulation: ...

Embodiment 3

[0058] (1) Premixing: First, add polyphenylene ether, brominated flame retardant, and flame retardant synergist to the low-speed mixer in sequence according to the ratio shown in Table 1 for premixing. The mixing temperature is 50°C, the speed of the mixer is 50 rpm, and the mixing time is 5 minutes. The three components are ground and mixed to form a PPE composite flame retardant. Then, add conductive carbon black, graphite, coupling agent, and compatibilizer in turn according to the ratio shown in Table 1, and continue mixing under the same conditions. The output is called premix 3.

[0059] (2) High-speed mixing: Add ultra-high molecular weight polyethylene, flow modifier, premix 3 in step (1), primary antioxidant and secondary antioxidant to the high-speed mixer in sequence according to the ratio shown in Table 1 premixed. The mixing temperature is 25° C., the rotation speed of the mixer is 200 rpm, and the mixing time is 3 minutes.

[0060] (3) Extrusion granulation: A...

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Abstract

The invention relates to an antistatic flame-retardant ultra high molecular weight polyethylene composition and a preparation method thereof. An ultra high molecular weight polyethylene composite material with antistatic and flame-retardant properties is prepared through adding flow modifier, polyphenylene oxide, brominated flame retardant, flame retardant synergist, an antistatic component, coupling agent, compatilizer and antioxidant into ultra high molecular weight polyethylene and mixing and pelleting in a double-screw extruder. The application field of the polyphenylene oxide is widened,the cost of a flame-retardant material is reduced, and a favorable antistatic effect is achieved.

Description

technical field [0001] The invention relates to an antistatic and flame-resistant ultra-high molecular weight polyethylene composition and a preparation method thereof, belonging to the field of polymer materials and their molding processing. Background technique [0002] Polyethylene with a molecular weight of more than 1.5 million is generally called ultra-high molecular weight polyethylene. Due to the particularity of its molecular structure and aggregate structure, it is endowed with excellent mechanical strength, wear resistance, self-lubrication, corrosion resistance and low temperature resistance. In recent years, it has been widely used in the manufacture of plate and frame filter plates, mine conveyor rollers, etc., showing unique practicability. However, the melt flow rate of ultra-high molecular weight polyethylene is almost zero, the melt viscosity is extremely high, and the processability is poor, which creates difficulties for its molding process. In the init...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L71/12C08L23/14C08L51/06C08K13/02C08K3/04C08K5/06C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 杨军忠姜立忠江枫丹隋轶巍李瑞亢胡衍平
Owner CHINA NAT BLUESTAR GRP CO LTD
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