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Irradiated crosslinking low-smoke halogen-free flame-retardant isolating compound and sheathing compound for solar cables

A technology for solar cables and insulating materials, which is applied to insulated conductors, insulated cables, organic insulators, etc., can solve the problems of lack of resistance to DC voltage under water immersion, and improve the integrity of the coating, improve the pressure resistance of water immersion, and increase the service life Effect

Inactive Publication Date: 2009-12-23
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the prior art, the immersion DC voltage resistance performance of irradiation cross-linked low-smoke, halogen-free and flame-retardant insulating materials is lacking. In order to achieve the above performance indicators, it is necessary to The formulation and preparation method of the sheathing material are further improved

Method used

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  • Irradiated crosslinking low-smoke halogen-free flame-retardant isolating compound and sheathing compound for solar cables
  • Irradiated crosslinking low-smoke halogen-free flame-retardant isolating compound and sheathing compound for solar cables
  • Irradiated crosslinking low-smoke halogen-free flame-retardant isolating compound and sheathing compound for solar cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Each component name and each component parts by weight ratio are:

[0038] EBA 17BA07 (the Lotryl EBA 17BA07 purchased from ARKWMA company) 80kg;

[0039] Maleic anhydride grafted EBA (available from LOTADER 3210 of ARKWMA company) 20kg;

[0040] Magnesium hydroxide 160kg;

[0041] Silane (surface modifier) ​​0.4kg;

[0042] Grade 1 stearic acid 0.4kg;

[0043] Antioxidant 2kg;

[0044] UV absorber 0.2kg;

[0045] Anti-copper agent 0.1kg;

[0046] Lubricant 2kg;

[0047] Cross-linking sensitizer 2kg.

[0048] Preparation method: Stir magnesium hydroxide in a high-speed mixer at high speed and heat up to 100°C, add first-grade stearic acid and stir for 8 minutes, then add acidified silane coupling agent and stir for 5 minutes, and perform secondary coating to improve The integrity of the surface coating of the filler. Then select raw materials according to the parts by weight of the above-mentioned components and drop into other components except magnesium hydro...

Embodiment 2

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

[0055] EMA1125 (purchased from EMA1125 of DuPont, USA) 80kg;

[0056] Maleic anhydride grafted EMA (available from LOTADER 3430 of ARKWMA company) 20kg;

[0057] Magnesium hydroxide 160kg;

[0058] Silane (surface modifier) ​​0.4kg;

[0059] Grade 1 stearic acid 0.4kg;

[0060] Antioxidant 2kg;

[0061] UV absorber 0.2kg;

[0062] Anti-copper agent 0.1kg;

[0063] Lubricant 2kg;

[0064] Cross-linking sensitizer 2kg.

[0065] Preparation method: Stir magnesium hydroxide in a high-speed mixer at high speed and heat up to 100°C, add first-grade stearic acid and stir for 5 minutes, then add acidified silane coupling agent and stir for 8 minutes, and perform secondary coating to improve The integrity of the surface coating of the filler. Then select the raw materials according to the parts by weight of the above-mentioned components and drop into other components except magnesium hydroxide in a high-...

Embodiment 3

[0067] Each component name and each component parts by weight ratio are:

[0068] Ethylene-butyl acrylate copolymer 80kg;

[0069] Functionalized polyolefin resin 20kg;

[0070] Flame retardant 160kg;

[0071] Silane (surface modifier) ​​0.4kg;

[0072] Grade 1 stearic acid 0.4kg;

[0073] Antioxidant 2kg;

[0074] UV absorber 0.2kg;

[0075] Anti-copper agent 0.1kg;

[0076] Lubricant 2kg;

[0077] Cross-linking sensitizer 2kg.

[0078] The preparation method is the same as in Example 1.

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Abstract

The invention relates to an irradiated crosslinking low-smoke halogen-free flame-retardant insulating compound and a sheathing compound for solar cables, which are characterized by taking ethylene-methyl acrylate copolymer (EMA) or ethylene-butyl acrylate copolymer objects (EBA) as basal resin, taking functionalized polyolefin resin as compatilizer, taking magnesium oxide and silicon resin as fire retardant, and then mixing antioxidant, UV absorbent, anti-copper agent, crosslinking sensitizer and processing agent together. The irradiated crosslinking low-smoke halogen-free flame-retardant isolating compound and the sheathing compound for solar cables have the advantages of higher temperature resistant class, longer service life, excellent squeezing performance and good electrical insulation performance. Cables squeezed from the irradiated crosslinking low-smoke halogen-free flame-retardant insulating compound and the sheathing compound can pass the flood and pressure test.

Description

technical field [0001] The invention relates to a radiation cross-linked low-smoke halogen-free flame-retardant insulating material and a sheath material for solar cables. Suitable for DC voltage up to 1.8kV (core-to-core, non-grounded system), used on the DC side (the part between the photovoltaic cell and the DC terminal of the photovoltaic converter in the photovoltaic device) in the solar system (photovoltaic system) single-core flexible wire. Background technique [0002] As an environmentally friendly and sustainable new energy source, solar energy has been valued at home and abroad, and the photovoltaic system construction of solar power plants has high technical requirements for solar cables, and the performance requirements of the products have good heat resistance, heat resistance, and low temperature resistance. , chemical corrosion resistance, DC voltage resistance and halogen-free flame retardancy, etc., and the insulation and sheath materials are required to h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/22H01B7/295B29B9/06B29C47/92H01B3/44B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92895B29C2948/92904
Inventor 王僧山汪晓明项健
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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