New chemical foaming agents can greatly reduce the destruction of the ozone layer and the production of greenhouse gases

China Coatings Online News Information: Recently, a new type of chlorofluorofluoroesturethane chemical foaming agent in Beijing through the China Petroleum and Chemical Industry Federation organized by the scientific and technological achievements of the identification committee led by the Chinese Academy of Sciences Duan Xue academician, the Chinese Academy of Engineering Su Yi brain academician, etc. believe that the technical achievements in the world's leading level, will play a huge role in promoting the replacement of traditional foaming agents.The mention of polyurethane foaming agent, many people may not be familiar with, but as one of the world's six synthetic materials, polyurethane is closely related to our lives - refrigeration, solar energy, cars, sofas, mattresses, building facade insulation, etc. can not be separated from it, and foaming agent is one of its key raw materials.more than 80 years, the development of a good performance and environmentally friendly foaming agent has been a serious challenge for the polyurethane industry. In the past, "ozone killer" Freon has been used to foam polyurethane, which is very damaging to the environment. HFCs, alternatives to Freon, have been shown to produce powerful greenhouse gases that contribute to global warming thousands of times higher than carbon dioxide, and their emissions are increasing at a rate of 10 per cent a year, making them the world's fastest-growing greenhouse gas.some international treaties have clear restrictions on the use of these foaming agents. The Montreal Protocol, signed in 1987, provided for the phase-out of ozone-depleting substances such as Freon, and in October 2016, the Kigali Amendment, signed in Kigali, Rwanda, agreed to include HFCs in the control list and established a timetable for phasing out the use of HFCs by 80 to 85 per cent by 2040.do with foaming agents if they leave these substances? This is a question that Professor Bi Yusui of Shandong University of Technology has been thinking about. In 2003, Bi Yusui began to develop a new type of foaming agent, when he set himself a goal: through technological innovation, the "ozone killer" and let the earth "low fever" foaming agent eliminated!After more than 10 years of continuous testing and repeated "trial and error", Bi Yusui team finally developed the world's first chemically synthesized chlorofluoroestan-free chemical foaming agent, it is completely different from the traditional physical foaming agent, foaming agent molecules themselves do not contain fluorine, chlorine and other halogen elements, the production process does not involve halogenation reactions, but also to meet the polyurethane foam thermal conductivity and other performance requirements, greatly reducing the ozone layer damage and greenhouse gas production.the strong promotion of the State Intellectual Property Office, the technical achievements have been applied for 38 national invention patents, of which 2 have been authorized to apply for PCT patents 2. Since 2016, Shandong University of Technology and Tianxin Materials Co., D.C. have carried out research work on the application and industrialization of new structural foaming agents, and built a pilot plant with an annual production scale of 3000 tons, and the next step will be to build 100,000 tons/year chlorofluoroestluoroesturethane chemical foaming agent project. "On the basis of independent innovation, we hope to vigorously promote alternative technologies that are both friendly to the ozone layer and climate friendly, guide the relevant manufacturing industries to upgrade their technology and optimize their product structure from the supply side, and enhance the international competitiveness and sustainable development capabilities of relevant industries and products in China." Bi Yusui said.
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