全氟异丁腈专题：减碳之下，新一代环保绝缘气体

Investment Rating - The report maintains a "Positive" investment rating for the industry [10]. Core Insights - Sulfur hexafluoride (SF6) is the strongest greenhouse gas, necessitating the search for new alternatives in the context of global carbon reduction efforts. Perfluorobutyronitrile (C4F7N) is emerging as a promising environmentally friendly insulating gas [5][8]. Summary by Sections Introduction: Why Focus on Perfluorobutyronitrile? - Relevant companies such as Sinochem and Haohua Technology are positioning perfluorobutyronitrile as a long-term substitute for SF6, with this report focusing on the current progress and future development of C4F7N [20]. Sulfur Hexafluoride: Strong Greenhouse Effect, Needs Replacement - SF6 is widely used in electrical insulation due to its excellent properties, but it has a global warming potential (GWP) 23,900 times that of CO2. International agreements like the Kyoto Protocol and Paris Agreement restrict its emissions [5][25]. China's SF6 emissions have been increasing at a rate higher than the global average, highlighting the urgent need for environmentally friendly alternatives [25][26]. Perfluorobutyronitrile: A Promising Alternative - C4F7N offers insulation performance over twice that of SF6 and has a GWP of about 1/10 of SF6. It is suitable for outdoor applications when mixed with low-boiling point buffer gases. The theoretical market space for C4F7N is significant, with an estimated global market of 3,900 tons by 2024 [6][34]. Domestic Companies Expanding Perfluorobutyronitrile Production Lines - Domestic companies are gradually establishing production lines for C4F7N. Notable developments include Sinochem's first thousand-ton production line and Haohua Technology's successful batch production of C4F7N [7][38]. Investment Recommendations: Focus on Companies Involved in Perfluorobutyronitrile - The report suggests monitoring companies like Sinochem and Haohua Technology, which are actively involved in the development and production of perfluorobutyronitrile as a replacement for SF6 [8][41].