Insulating material for nuclear power plant and production technology thereof

Abstract

The invention discloses an insulating material for nuclear power plants and a production process thereof. The components of the insulating material include 30-50 parts of a rubber matrix, 15-30 parts of a flame retardant, 8-12 parts of a silane coupling agent, chlorinated 10‑20 parts of polyethylene, 1‑4 parts of UV absorber, 4‑10 parts of tin mercaptide, 5‑15 parts of toughening modifier, 15‑25 parts of polyolefin compound, 15 parts of polystyrene resin 30 parts, 8-15 parts of nano-scale silicon dioxide, 8-15 parts of cross-linked fluororesin, 10-15 parts of composite antioxidant and 10-30 parts of reinforcing fiber. The production process of the present invention is simple, and the production process is environmentally friendly and pollution-free , the prepared material has excellent acid and alkali resistance, high temperature resistance, flame retardancy, radiation resistance, long service life, and can be widely used as insulation material for nuclear power plant cables.

Description

technical field [0001] The invention relates to the technical field of insulating material preparation, in particular to an insulating material for nuclear power plants and a production process thereof. Background technique [0002] After the Fukushima incident in Japan, countries have paid more attention to the safety of nuclear power. Our country is also actively carrying out the introduction and independent research and development of the third-generation nuclear power technology with higher safety. At present, the AP1000 third-generation nuclear power technology imported from Westinghouse in the United States, the CAP1400 third-generation nuclear power technology independently developed by the State Nuclear Power Corporation and China National Nuclear Corporation and China Guangdong Nuclear Power Co., Ltd. The cooperative ACP1000 third-generation nuclear power technology, that is, "Hualong One" nuclear power technology, is being actively promoted. The advancement of the ...

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Problems solved by technology

Our country is also actively carrying out the introduction and independent research and development of the third-generation nuclear power technology with higher safety. At present, the AP1000 third-generation nuclear power technology imported from Westinghouse in the United States, the CAP1400 third-generation nuclear power technology independently developed by the State Nuclear Power Corporation and China National Nuclear Corporation and China Guangdong Nuclear Power Co., Ltd. The cooperative ACP1000 third-generation nuclear power technology, that is, "Hualong One" nuclear power technology, is being actively promoted. The advancement of the third-generation nuclear power technology has put forward higher requirements for the insulating materials inside the nuclear power plant shell; the so-called containment inner insulating materials are It refers to the ability to complete its prescribed functions under the action of earthquake loads and normal industrial and mining, design basis accidents and serious accidents and post-accident industrial and mining, but the insulation materials of the existing power cables for nuclear power plants have poor corrosion resistance and compression resistance. short life

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