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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 air bubbles, and lower crystallization The effect of shrinkage

Active Publication Date: 2022-04-01
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 polyethylene materials in the preparation of new polyethylene insulators.

Method used

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  • 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 power insulators is prepared from the following raw materials by weight percentage:

[0044] Polyethylene 50%

[0045] Toughening agent 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 size is 1250 meshes;

[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 168 in ...

Embodiment 2

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

[0063] Polyethylene 55%

[0064] Toughening agent 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] The inorganic filler is modified calcium carbonate, and its particle size is 1250 meshes;

[0074] Described brominated flame retardant is bromotriazine;

[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 1010 and antioxidant 16...

Embodiment 3

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

[0082] Polyethylene 60%

[0083] Toughening agent 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] The inorganic filler is modified calcium carbonate, and its particle size is 1250 meshes;

[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 antioxidant 168 in a r...

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Abstract

The invention provides a thermoplastic modified polyethylene material suitable for electric insulators, which is prepared from the following raw materials by weight percentage: polyethylene 50-65%, toughening agent 2-6%, inorganic filler 15-20%, brominated flame retardant 15-20%, synergistic flame retardant 1.5-5%, stabilizer 0.6-1.4%, coupling agent 0.5-1%, lubricant 0.2-1%; the above raw materials Stir and mix in a high-speed mixer, extrude and granulate with a twin-screw extruder. The material has excellent comprehensive properties, stable flame retardancy, low density, and smooth surface properties. At the same time, it is also a thermoplastic material that can be recycled and reused, which is in line with the trend of environmental protection. At the same time, when used to manufacture insulator products, the process is simple, the production cycle is short, the production environment is dust-free, and the products can be recycled and reused after the expiration of the service life and scrap, without causing 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 field of electric power technology. 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 to load, unload and transport, and require a lot of manpower and material resources. At the same time, both ceramic and glass insulators are heavier, the load of transmission line cables and towers is large, energy consumption during production is also large, and a large amount of dust is discharged. Does not meet the international energy saving and environmental protection requirements. The composite insulators are mostly silicone rubber insulators. This kind of silicone rubber material is a high-temperature vulcanized rubber with low production efficiency. After ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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