Thermoplastic modified polyethylene material suitable for electric insulators, and preparation method thereof

A polyethylene and insulator technology, which is applied in the field of thermoplastic modified polyethylene materials and modified polyethylene materials, can solve the problems of new polyethylene insulators that have not been reported, and achieve less appearance and internal defects, less impact on comprehensive performance, Good thermal stability and hydrolysis resistance effect

Active Publication Date: 2019-06-25
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no relevant report on the use of modified polyethylen

Method used

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  • Thermoplastic modified polyethylene material suitable for electric insulators, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A modified polyethylene material suitable for electric insulators, which is prepared from the following raw materials by weight percentage:

[0044] Polyethylene 50%

[0045] Toughener 5%

[0046] Inorganic filler 20%

[0047] Brominated flame retardant 18%

[0048] Synergistic flame retardant 5%

[0049] Stabilizer 0.6%

[0050] Coupling agent 0.5%

[0051] Lubricant 0.9%

[0052] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 14g / 10min;

[0053] The toughening agent is ethylene-octene copolymer (POE);

[0054] Described inorganic filler is modified talcum powder, and its particle diameter is 1250 mesh;

[0055] Described brominated flame retardant is brominated epoxy;

[0056] The synergistic flame retardant is antimony trioxide;

[0057] The stabilizer is composed of 0.1% antioxidant, 0.3% light stabilizer, and 0.2% flame retardant stabilizer, wherein the antioxidant is compounded by antioxidant 1010 and antioxidant 1...

Embodiment 2

[0062] A modified polyethylene material suitable for electric insulators, which is prepared from the following raw materials by weight percentage:

[0063] Polyethylene 55%

[0064] Toughener 4%

[0065] Inorganic filler 17.9%

[0066] Brominated flame retardant 15%

[0067] Synergistic flame retardant 5%

[0068] Stabilizer 1.4%

[0069] Coupling agent 1%

[0070] Lubricant 0.7%

[0071] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 10g / 10min;

[0072] Described toughening agent is EPDM grafted maleic anhydride;

[0073] Described inorganic filler is modified calcium carbonate, and its particle diameter is 1250 orders;

[0074] Described brominated flame retardant is brominated triazine;

[0075] The synergistic flame retardant is polytetrafluoroethylene;

[0076] The stabilizer is composed of 0.4% antioxidant, 0.8% light stabilizer, and 0.2% flame retardant stabilizer, wherein the antioxidant is compounded by antioxidant 101...

Embodiment 3

[0081] A modified polyethylene material suitable for electric insulators, which is prepared from the following raw materials by weight percentage:

[0082] Polyethylene 60%

[0083] Toughener 3%

[0084] Inorganic filler 15%

[0085] Brominated flame retardant 17%

[0086] Synergistic flame retardant 2%

[0087] Stabilizer 1%

[0088] Coupling agent 1%

[0089] Lubricant 1%

[0090] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 10g / 10min;

[0091] Described toughening agent is EPDM grafted maleic anhydride;

[0092] Described inorganic filler is modified calcium carbonate, and its particle diameter is 1250 orders;

[0093] Described brominated flame retardant is brominated epoxy;

[0094] The synergistic flame retardant is antimony trioxide;

[0095]The stabilizer is composed of 0.2% antioxidant, 0.55% light stabilizer, and 0.25% flame retardant stabilizer, wherein the antioxidant is compounded by antioxidant 1010 and antioxid...

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Abstract

The invention provides a thermoplastic modified polyethylene material suitable for electric insulators, wherein the thermoplastic modified polyethylene material is prepared from the following raw materials by weight: 50-65% of polyethylene, 2-6% of a toughener, 15-20% of an inorganic filler, 15-20% of a bromine-based flame retardant, 1.5-5% of a synergistic flame retardant, 0.6-1.4% of a stabilizer, 0.5-1% of a coupling agent, and 0.2-1% of a lubricant, the raw materials are stirred and mixed in a high-speed mixer, and the mixture is extruded and granulated by a twin-screw extruder to obtain the product. According to the present invention, the thermoplastic modified polyethylene material has advantages of excellent comprehensive performance, stable flame retardancy, low density and smoothsurface property, is the thermoplastic material, can be recovered and reused, and meets the environmental protection trends; and with the application of the thermoplastic modified polyethylene material in the preparation of insulator product, the process is simple, the production cycle is short, the production environment is free of dust, and the product can be recovered and reused after the usedlife is achieved and the product is rejected so as not to cause white pollution.

Description

technical field [0001] The invention relates to a modified polyethylene material, in particular to a thermoplastic modified polyethylene material suitable for electric insulators, and belongs to the technical field of electric power. Background technique [0002] At present, most insulators at home and abroad are ceramic, glass or composite insulators. Both ceramic and glass insulators are fragile, inconvenient for handling and transportation, and require a lot of manpower and material resources. At the same time, both ceramic and glass insulators are heavy, and the loads of transmission line cables and towers are relatively large, which consumes a lot of energy during production and causes a lot of dust emissions. Does not meet international energy conservation and environmental protection requirements. Composite insulators are mostly silicone rubber insulators. This silicone rubber material is a high-temperature vulcanized rubber with low production efficiency. After the...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L63/00C08L51/04C08L23/16C08L9/02C08K13/06C08K3/34C08K5/134C08K5/526C08K5/132C08K5/3435C08K5/57C08K5/3492C08K3/26C08K5/03C08K5/136C08K5/06C08K5/20
Inventor 付晓婷兰修才唐勇苏子凌张浮龙
Owner CHINA BLUESTAR CHENGRAND CO LTD
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