Zhou Yujin, Tian Yingrui, Peng Xiaowei
College of Physical Education, Wuhan Sports University, Wuhan 430079, China.
College of Science, Wuhan University of Science and Technology, Wuhan 430081, China.
Polymers (Basel). 2023 Jan 12;15(2):402. doi: 10.3390/polym15020402.
With economic development, environmental problems are becoming more and more prominent, and achieving green chemistry is an urgent task nowadays, which creates an opportunity for the development of supercritical foaming technology. The foaming agents used in supercritical foaming technology are usually supercritical carbon dioxide (ScCO) and supercritical nitrogen (ScN), both of which are used without environmental burden. This technology can reduce the environmental impact of polymer foam production. Although supercritical foaming technology is already in production in some fields, it has not been applied on a large scale. Here, we present a detailed analysis of the types of foaming agents currently used in supercritical foaming technology and their applications in various fields, summarizing the technological improvements that have been made to the technology. However, we have found that today's supercritical technologies still need to address some additional challenges to achieve large-scale production.
随着经济发展，环境问题日益突出，实现绿色化学是当今一项紧迫任务，这为超临界发泡技术的发展创造了机遇。超临界发泡技术中使用的发泡剂通常是超临界二氧化碳（ScCO）和超临界氮气（ScN），两者使用时均无环境负担。该技术可降低聚合物泡沫生产对环境的影响。尽管超临界发泡技术已在某些领域投入生产，但尚未大规模应用。在此，我们详细分析了超临界发泡技术目前使用的发泡剂类型及其在各个领域的应用，总结了该技术已取得的技术改进。然而，我们发现当今的超临界技术要实现大规模生产仍需应对一些额外挑战。
