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Antistatic halogen-free fire retardation ultra-high molecule weight polyethylene material and preparation method thereof

A technology of ultra-high molecular weight and polyethylene, which is applied in the field of antistatic halogen-free flame-retardant ultra-high molecular weight polyethylene materials and its preparation, can solve the problems of high resistivity and poor flame retardancy, achieve good wear resistance, improve resistance Static electricity and flame retardancy, effect of reducing surface resistance and volume resistance

Active Publication Date: 2013-02-27
CHANGZHOU RUIJIE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its disadvantages such as poor flame retardancy and high electrical resistivity, UHMWPE is limited to use in higher requirements and more special occasions (such as deep well operations in coal mines, oil transportation, etc.)

Method used

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  • Antistatic halogen-free fire retardation ultra-high molecule weight polyethylene material and preparation method thereof
  • Antistatic halogen-free fire retardation ultra-high molecule weight polyethylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In parts by weight, 100 parts of ultra-high molecular weight polyethylene with a viscosity-average molecular weight of 8 million, 5 parts of titanate coupling agent-treated expandable graphite with a particle size of 80 meshes, and 0.3 parts of antioxidant 1010 are mixed evenly, and 1 part Nucleating agent zinc stearate, 0.5 part flow modifier PPA, 1 part conductive carbon black. The mixture was then melt-pressed at 220° C. and 20 MPa (MPa: megapascal) by compression molding. The properties of the prepared materials are listed in Table 1.

Embodiment 2

[0022] In parts by weight, 100 parts of ultra-high molecular weight polyethylene with a viscosity-average molecular weight of 8 million, 10 parts of titanate coupling agent-treated expandable graphite with a particle size of 80 meshes, and 0.3 parts of antioxidant 1010 are mixed uniformly, and 1 part Nucleating agent zinc stearate, 0.5 part flow modifier PPA, 1 part conductive carbon black. Then the mixture was melt-pressed at 220° C. and 20 MPa by compression molding. The properties of the prepared materials are listed in Table 1.

Embodiment 3

[0024] In parts by weight, 100 parts of ultra-high molecular weight polyethylene with a viscosity-average molecular weight of 8 million, 20 parts of titanate coupling agent-treated expandable graphite with a particle size of 80 meshes, and 0.3 parts of antioxidant 1010 are mixed uniformly, and 1 part Nucleating agent zinc stearate, 0.5 part flow modifier PPA, 1 part conductive carbon black. Then the mixture was melt-pressed at 220° C. and 20 MPa by compression molding. The properties of the prepared materials are listed in Table 1.

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Abstract

The present invention discloses an antistatic halogen-free fire retardation ultra-high molecule weight polyethylene material, which comprises, by weight, 100 parts of ultra-high molecule weight polyethylene, 5-40 parts of expanded graphite, 5-20 parts of a synergistic fire retardation agent, 0.1-2 parts of a coupling agent, 0.1-10 parts of a flowing modifier, 0.1-1 part of a nucleating agent, 0.1-1 part of an antioxidant, and 0.1-5 parts of an antistatic agent. According to the present invention, the large particle size (general tens or even hundreds of mum) expanded graphite is added to the ultra-high molecule weight polyethylene material, such that the disadvantage of fire retardation effect reduction due to non-uniform dispersion of the halogen fire retardation agent and the traditional halogen-free fire retardation agent in the ultra-high molecule weight polyethylene substrate is solved; and the graphite itself is a good electric conduction material, such that surface electric resistance and volume electric resistance of the material can be significantly reduced so as to solve disadvantages of the halogen fire retardation agent and the traditional halogen-free fire retardation agent in the ultra-high molecule weight polyethylene, wherein the disadvantages comprise that the halogen fire retardation agent and the traditional halogen-free fire retardation agent can not concurrently have an antistatic performance and a fire retardation performance.

Description

technical field [0001] The invention relates to an ultra-high molecular weight polyethylene material, more precisely, an antistatic halogen-free flame-retardant ultra-high molecular weight polyethylene material and a preparation method. Background technique [0002] Ultra-high molecular weight polyethylene materials have excellent properties, such as excellent wear resistance, chemical corrosion resistance, low friction coefficient, high low-temperature impact strength, and a service life of up to 50 years. In recent years, it has been widely used in mines, power plants, petroleum, chemical, machinery, shipbuilding, aviation instruments, train EMUs and other fields that have special requirements for high impact resistance, high wear resistance, and corrosion resistance. However, due to its shortcomings such as poor flame retardancy and high resistivity, UHMWPE is limited to use in higher requirements and more special occasions (such as deep well operations in coal mines, oil...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/04C08K7/24C08K3/04C08K3/32C08K5/3492C08K5/053C08K3/22
Inventor 刘春林谢立平吴盾芮国芬
Owner CHANGZHOU RUIJIE NEW MATERIAL TECH CO LTD
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