China's research and development of the first chlorofluorofluoroestan foaming agent

China Paint Online News Information: Even if you don't understand chemical industry, you must have heard of Freon, and the once widely publicized "fluorine-free refrigerator". In fact, HCFCs such as Freon can be used not only as refrigerants for air conditioning compressors, but also as physical foaming agents for polyurethane foams due to their low boiling point. With its destructive effects on the ozone layer in the atmosphere becoming clear and important, HCFCs have accelerated the phase-out and replacement process in both refrigerants and foaming agents.
July 6th, Zibo Zhenghua Foaming Materials Co., Ltd. and Shandong University of Technology jointly developed the world's first chlorofluorofluoroesturethane chemical foaming agent in Zibo, Shandong Province for wall spray application test success. This is an important step for the world polyurethane industry to remove chlorofluoride and open a new chapter in green development.
green environment defines the new direction of the industry
"We have developed polyurethane chemical foaming agents that are chlorofluoride-free and can completely replace existing physical foaming agents containing chlorofluorocarbons, providing a new way for the world polyurethane industry to phase out 'ozone-depleting substances' and reduce greenhouse gas emissions. Chlorofluoroproumethane chemical foaming agent CFA8 is currently the only organic compound in the world that can react with isocyanate to produce carbon dioxide gas, which has laid a theoretical foundation for the development and research of polyurethane chemical foaming agent and redefined the development direction of polyurethane industry. Bi Yusui, inventor of the patented technology and professor of the School of Chemical Engineering of Shandong University of Technology, told china Chemical News.
1987, the International Convention of the Montreal Protocol stipulated that the use of Freon as a foaming agent was completely prohibited worldwide; Europe and the United States and other countries have now completely banned the production and import of second-generation chemical foaming agent HCFC-141b. China has pledged to ban the production and use of HCFC-141b completely by 2030. In order to fill the gap in the market, the third generation of physical foaming agents HFC-245fa and HFC-365mfc were born, but still produced a large number of ozone-depleting substances in the production process, and will produce a greenhouse effect.
The U.S. is pushing for a fourth-generation physical foaming agent, which is more environmentally friendly and safe, but the Global Warming Potential (GWP) is still greater than 1, and the molecule still contains fluorine, which is unavoidable damage to the ozone layer,"
said. Bi Yusui said that these physical foaming agents with the improvement of environmental performance, the price is also multiplied.
", CFA8 ozone-depleting potential (ODP) is zero, GWP is 1, the lifetime climate performance LCCP is the lowest, is a new green, safe chemical foaming agent. Bi Yusui said.
, the application of the foaming agent production of polyurethane material compression strength is high, low thermal conductivity, size stability is good. In 2013, shu Xingtian, Wu Shuzu, Wang Yuqing three academicians and other experts composed of the identification committee of this scientific and technological achievements, the chemical foaming agent production process design is scientific and reasonable, raw materials easy to access, low cost, the production process without three waste emissions, clean environmental protection, material performance in line with the relevant quality standards, is expected to replace the existing physical foaming agent.
"in the future, we are expected to produce the world's most energy-efficient refrigerator and other electrical equipment, to create the world's best insulation performance of LNG storage and transportation equipment, to build a good fire performance and the most energy-efficient and environmentally friendly buildings." Bi Yusui is full of confidence.
to fill the gap encompassing the global market
reporters learned that as the Montreal Protocol's relevant implementation period is getting closer, chlorofluorocarbon-containing physical foaming agents will accelerate the phase-out. CFA8, a chlorofluorofluoroeste-free chemical foaming agent, is the only alternative to physical foaming agents and has a vast market space with great potential economic value.
high performance of polyurethane hard foam materials, widely used in refrigeration insulation, building energy conservation, solar energy, automobiles, refrigerator freezers and other industries. According to statistics from the China Polyurethane Industry Association, global demand for polyurethane hard foam materials was 5.7 million tons in 2014 and is expected to grow at a compound annual rate of 4.5% between 2014 and 2020. Polyurethane foaming agent as one of the important production raw materials of polyurethane hard foam material, will also have a huge market demand. In the next few years, the amount of polyurethane foaming agent will reach 600,000 tons.
China Polyurethane Industry Association Secretary-General Lu Congress told reporters that before, the development of China's polyurethane foaming agent has always been limited to foreign companies set the rules of the game, bear the abnormally high price costs. He believes that the industrialization of CFA8 is not only expected to replace imports, but also for China to dominate the future of the world foaming agent industry rules provide a strong support.
" CFA8, which attracted the attention of the Ministry of Environmental Protection, was included in the United Nations Multilateral Fund Support Program in 2014. We have also received the strong support of the relevant departments of the State Information Administration, has now applied for a series of patents at home and abroad, the construction of a complete intellectual property protection system. Bi Yusui said.
The transformation of results still needs policy assistance
at the polyurethane chemical foaming agent application media conference held in Zibo on July 6, a number of industry experts said that CFA8 has great potential to replace the existing chlorofluorocarbon-containing physical foaming agent, but to ensure the smooth completion of this major scientific and technological achievements transformation, to the world, more supporting measures and policy support.
Li Yongliang, deputy director of the Industrial Development Department of the China Petroleum and Chemical Industry Federation, said that the achievements of the new polyurethane chemical foaming agent should be incorporated into the long-term strategic development plan of the industry, and support for basic theoretical research, achievement transformation, standard system construction, industrialization and applied research should be strengthened.
China Polyurethane Industry Association Deputy Secretary-General Han Baole said that the industry association will actively pay attention to the development of alternative substances, coordinate the organization of upstream and downstream enterprises technology exchanges, application experiments, build a cooperation platform for new environmental protection polyurethane chemical foaming agent to provide a stage for display, so that more downstream manufacturers understand, trial until the scale of use, and gradually open the market door.
, director of zibo city science and technology bureau, suggested that Zibo city polyurethane alliance be upgraded to Shandong province-level alliance, in the province-wide promotion of new foaming agent products. The Science and Technology Bureau is also considering providing subsidies to help enterprises rapidly develop industrial production capacity.
" existing physical foaming agent system has been very mature, some physical foaming agents on the verge of elimination, because of its low price, is still favored by most polyurethane foam manufacturers, is widely used. This requires the government to make efforts, multi-measures to guide enterprises to participate in the phase-out plan. The speed of the progress of the phase-out plan will directly affect the promotion and application of new environmentally friendly foaming agents. Hou Yongzheng, chairman of Zibo Zhenghua FoamIng Materials Co., Ltd., said.
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