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Halogen-free flame retardant insulating material for photovoltaic cables

A photovoltaic cable and insulating material technology, applied in the direction of insulated conductors, insulated cables, organic insulators, etc., can solve the problems of cable insulation material performance degradation, intermolecular chemical bond breakage, loss of polymer properties, etc., to achieve reasonable component distribution and equipment Less, good flame retardant effect

Inactive Publication Date: 2014-04-30
ORIGIANL DOW ADVANCED COMPOUNDS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various materials that can be used include PVC, rubber, TPE and high-quality cross-linking materials. Under the long-term thermal aging and environmental effects of these materials, the intermolecular chemical bonds will be broken, and active free radicals or active ions will be generated. The following chemical reactions will further occur: active free radicals or active ions trigger the cross-linking reaction of the macromolecular chain, active free radicals or active ions trigger the degradation reaction, oxidation reaction, isomerization reaction of the macromolecular chain, other such as the generation of gas products, etc. , the final result is that the molecular weight of the polymer material is getting smaller and smaller, and even loses the properties of the polymer, so that the performance of the cable insulation material is greatly reduced

Method used

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  • Halogen-free flame retardant insulating material for photovoltaic cables
  • Halogen-free flame retardant insulating material for photovoltaic cables
  • Halogen-free flame retardant insulating material for photovoltaic cables

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Each component name and each component parts by weight are as follows:

[0044]

[0045] The preparation method of the above-mentioned invention comprises the following processing steps:

[0046] Mix the flame retardant aluminum hydroxide, magnesium hydroxide, zinc borate, silicon dioxide, and expandable graphite in a high-speed mixer according to the proportion at high speed until the temperature reaches 110°C, add zinc stearate and stir for 3-6 minutes. Place the material, and mix it with high-density polyethylene, ethylene-methyl methacrylate copolymer, and additives except for the crosslinking agent triallyl isocyanurate, using an internal mixer for 10-15 minutes according to the proportioning ratio. The raw material is extruded and granulated with a twin-screw extrusion granulator of Nanjing Ruiya Polymer Equipment Co., Ltd. while it is hot, to obtain a masterbatch. The masterbatch is mixed with the cross-linking agent triallyl isocyanurate in proportion to wat...

Embodiment 2

[0048] Each component name and each component parts by weight are as follows:

[0049]

[0050]

[0051] The preparation method of the above-mentioned invention comprises the following processing steps:

[0052] Mix the flame retardant aluminum hydroxide, magnesium hydroxide, zinc borate, silicon dioxide, and expandable graphite in a high-speed mixer according to the proportion at high speed until the temperature reaches 110°C, add zinc stearate and stir for 3-6 minutes. The material is placed, and the high-density polyethylene, ethylene-methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, and additives other than the crosslinking agent triallyl isocyanurate are used in an internal mixer according to the ratio. Preliminarily blend for 10-15 minutes to discharge the material, and extrude and granulate the material while it is hot with a twin-screw extrusion granulator of Nanjing Ruiya Polymer Equipment Co., Ltd. to obtain a masterbatch. The masterbatch is mix...

Embodiment 3

[0054] Each component name and each component parts by weight are as follows:

[0055]

[0056]

[0057] The preparation method of the above-mentioned invention comprises the following processing steps:

[0058] Mix the flame retardant aluminum hydroxide, magnesium hydroxide, zinc borate, silicon dioxide, and expandable graphite in a high-speed mixer according to the proportion at high speed until the temperature reaches 110°C, add zinc stearate and stir for 3-6 minutes. The material is placed, and the high-density polyethylene, ethylene-methyl methacrylate copolymer, ethylene-vinyl acetate copolymer, and additives other than the crosslinking agent triallyl isocyanurate are used in an internal mixer according to the ratio. Preliminarily blend for 10-15 minutes to discharge the material, and extrude and granulate the material while it is hot with a twin-screw extrusion granulator of Nanjing Ruiya Polymer Equipment Co., Ltd. to obtain a masterbatch. The masterbatch is mix...

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Abstract

The invention relates to a halogen-free flame retardant insulating material for photovoltaic cables, and belongs to the technical field of novel cable materials. The halogen-free flame retardant insulating material for the photovoltaic cables comprises the following components in parts by weight: 100 parts of basic resin, 10-45 parts of a flame retardant, 1-8 parts of a stabilizer and 1-8 parts of a crosslinking sensitizing agent. The halogen-free flame retardant insulating material is used for solving the problems of a conventional cable material that the conventional halogen-free flame retardant insulating material for the photovoltaic cables has relatively poor mechanical performances such as tensile strength and breaking elongation, relatively poor thermal aging resistance and relatively short service life in hostile environments of solar power stations. The production cost of the halogen-free flame retardant insulating material is low, the mechanical property of the halogen-free flame retardant insulating material is improved, and especially the high temperature resistance and the weather fastness of the halogen-free flame retardant insulating material are obviously improved.

Description

technical field [0001] The invention relates to an insulating material for cables, in particular to a novel radiation-crosslinkable halogen-free flame-retardant insulating material for photovoltaic cables, which belongs to the technical field of high-temperature-resistant cable materials. Background technique [0002] Solar energy technology will become one of the green energy technologies in the future. Solar energy or photovoltaic (PV) is widely used in China, especially in recent years, as the production cost of polysilicon, the raw material of solar cells, has been greatly reduced, and the production technology of solar cells has been perfected day by day. The output of solar cells in the world has increased very fast in 2010, which can be said to be an extremely promising industry. According to statistics, the annual output of solar cells in the world was 2,568 MW in 2007, 4,892 MW in 2008, 6,800 MW in 2009, and 9,104 MW in 2010, with an annual increase of 30% to 100%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08K3/22C08K3/36C08K3/38C08K5/17C08K5/098C08K5/3492C08K5/103C08K5/01C08K3/04H01B3/44H01B7/295
CPCC08L23/06C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/03C08L2207/062H01B3/441H01B7/295
Inventor 张根浩施冬梅
Owner ORIGIANL DOW ADVANCED COMPOUNDS SHANGHAI
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