On April 15th, a new non-chlorofluorocarbon polyurethane chemical blowing agent creation project jointly completed by Shandong University of Technology and Butian New Material Technology Co., Ltd. was identified in Beijing by the China Petroleum and Chemical Industry Federation’s scientific and technological achievements. Academician Duan Xue, the appraisal committee chaired by the Chinese Academy of Engineering Su Yiliang, believes that this technical achievement is the first of its kind at home and abroad, and it is at the leading international level. It will play a major role in the replacement of China's chlorofluorocarbon blowing agent.
The appraisal opinion shows that the technical achievement has four innovations: First, two types of new structure-free CFC-free urethane chemical foaming agents have been designed and synthesized. These two types of foaming agents are new chemical substances and have completed toxicological experiments and new substances. Registration, safe and green. The second is the development of new ideas for the development of new structural foaming agents. The foaming agents prepared with this new idea are promoted to decompose under the reaction heat to produce carbon dioxide; the blowing agent and the polyol component are better. Compatibility, the formed foam material has fine and uniform cells, and excellent performance. Thirdly, the application technology of new structure foaming agent in building insulation boards, pipe insulation, cold storage insulation, etc. has been developed. Fourth, new structural foam has been developed. The preparation process of the agent was completed and the pilot plant was built. The foam material produced by the new process was tested and the thermal conductivity and other performance indicators met the requirements of the national standard.
According to reports, this CFC-free urethane chemical foaming agent was developed by Professor Bi Yuxi of the Shandong University of Science and Technology after more than 10 years of research and development. Since 2016, Shandong University of Technology and Butian New Materials have cooperated to develop a new structural foaming agent. Applied research and industrialization technology, and built a pilot plant with an annual production scale of 3,000 tons. The output of foaming agent products was exported to the United States, gaining praise from users.
According to Bi Yuxi, the technical achievements have been applied for 38 national invention patents, of which 2 were authorized and 2 PCT patents were applied. After being reviewed by the expert group of the State Intellectual Property Office and confirmed at home and abroad, CFC-free polyurethane chemical foaming was confirmed. The agent is a major theoretical innovation and technological invention. In 2017, Tiantian New Materials Co., Ltd. invested RMB 500 million to obtain the 20-year patent exclusive license use right (except for the US and Canadian markets).
Bi Yuxi stated that in accordance with international conventions, China will completely stop the production and use of hydrochlorofluorocarbons by 2030. As an alternative to chlorofluorocarbon polyurethane physical foaming agents, the promotion and application of non-chlorofluorocarbon polyurethane chemical foaming agents will be The polyurethane foam industry has made significant contributions to the total phase-out of chlorofluorocarbons and hydrofluorocarbons, protection of the ozone layer, and reduction of carbon emissions. The appraisal committee also believes that this new structure foaming agent is a response to climate change in China, fulfilling the Paris Agreement and the The Montreal Protocol on Substances that Deplete the Ozone Layer provides strong technical support, and has broad application prospects. It is recommended that industrialization be implemented as soon as possible and that more efforts be made to promote it.
At present, the industrialization and promotion of the project is being stepped up and a 100,000-ton/year non-chlorofluorocarbon polyurethane chemical foaming agent project will be built.