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

A technology for polyethylene and insulators, 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, low cost, and ensure weather resistance The effect of sexual demands

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 polyethylene materials in the preparation of new polyethylene insulators.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A modified polyethylene material used for electric insulators, which is prepared from the following raw materials by weight percentage:

[0043] Polyethylene 56.5%

[0044] Inorganic filler 20%

[0045] Brominated flame retardant 18%

[0046] Synergistic flame retardant 5%

[0047] Stabilizer 0.5%

[0048] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 14g / 10min;

[0049] Described inorganic filler is modified calcium carbonate, and its particle diameter is 1250 orders;

[0050] Described brominated flame retardant is brominated epoxy;

[0051] The synergistic flame retardant is antimony trioxide;

[0052] Described stabilizer is made up of 0.1% antioxidant, 0.4% light stabilizer, wherein, antioxidant is compounded by antioxidant 1010 and antioxidant 168 by the ratio of 1:2; Light stabilizer is made of UV -531 (2-hydroxy-4-n-octyloxybenzophenone) and 770 (bis(2,2,6,6-tetramethylpiperidinyl) sebacate) in a ratio of 1:3 Matc...

Embodiment 2

[0055] A modified polyethylene material used for electric insulators, which is prepared from the following raw materials by weight percentage:

[0056] Polyethylene 45%

[0057] Toughener 8%

[0058] Inorganic filler 25%

[0059] Brominated flame retardant 15%

[0060] Synergistic flame retardant 5%

[0061] Stabilizer 0.8%

[0062] Coupling agent 0.5%

[0063] Lubricant 0.7%

[0064] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 10g / 10min;

[0065] Described toughening agent is EPDM grafted maleic anhydride;

[0066] Described inorganic filler is modified calcium carbonate, and its particle diameter is 1250 orders;

[0067] Described brominated flame retardant is brominated triazine;

[0068] The synergistic flame retardant is antimony trioxide;

[0069] Described stabilizer is made up of 0.2% antioxidant, 0.6% light stabilizer, wherein, antioxidant is compounded by antioxidant 1010 and antioxidant 168 by the ratio of 1:2; Li...

Embodiment 3

[0074] A modified polyethylene material used for electric insulators, which is prepared from the following raw materials by weight percentage:

[0075] Polyethylene 47.1%

[0076] Toughener 6%

[0077] Inorganic filler 20%

[0078] Brominated flame retardant 25%

[0079] Stabilizer 0.9%

[0080] Lubricant 1%

[0081] The polyethylene is high-density polyethylene (HDPE) with a melt index (230°C, 5kg) of 10g / 10min;

[0082] Described toughening agent is EPDM grafted maleic anhydride;

[0083] Described inorganic filler is modified calcium carbonate, and its particle diameter is 1250 orders;

[0084] Described brominated flame retardant is brominated epoxy;

[0085] Described stabilizer is made up of 0.3% antioxidant, 0.6% light stabilizer, wherein, antioxidant is compounded by antioxidant 1010 and antioxidant 168 by the ratio of 1:2; Light stabilizer is formed by UV -531 (2-hydroxy-4-n-octyloxybenzophenone) and 770 (bis(2,2,6,6-tetramethylpiperidinyl) sebacate) in a rati...

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Abstract

The invention provides a thermoplastic modified polyethylene material for electric insulators, wherein the thermoplastic modified polyethylene material is prepared from the following raw materials byweight: 45-70% of polyethylene, 0-8% of a toughening agent, 10-25% of an inorganic filler, 12-25% of a bromine-based flame retardant, 0-6% of a synergistic flame retardant, 0.5-1.5% of a stabilizer, 0-1% of a coupling agent, and 0-1% 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 smooth surfaceproperty, 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 thepreparation 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 used life isachieved 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 used 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 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 pa...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/04C08L27/18C08L23/08C08L23/16C08K13/06C08K9/00C08K3/26C08K3/22C08K5/134C08K5/526C08K5/132C08K5/3435C08K3/34C08K5/10C08K13/02C08K5/03C08K5/136C08K5/098C08K5/20
Inventor 付晓婷兰修才张浮龙唐勇苏子凌
Owner CHINA BLUESTAR CHENGRAND CO LTD
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