In response to the Coronavirus (COVID-19) epidemic prevention and control, the new filter material is applied to masks, which are used by the Institute of Chemical Physics, Chinese Academy of Sciences, China Science and Technology Medical Technology (Dalian) Co., Ltd., SDHL Nonwovens Corporation, and Dalian Inspection and Certification Group The signing and inauguration ceremony of the mask joint laboratory jointly built by the Co., Ltd. was held in Dalian on September 30.
The mask joint laboratory aims to apply new filter materials to masks through in-depth research on filter materials and mask-related topics, improve the protective effect of masks, and make scientific research results more quickly applied, providing safety guarantees for people’s lives and health, and contributing to the prevention and control of epidemics. Actively contribute.
In response to the Coronavirus (COVID-19) epidemic prevention and control, the Dalian Institute of Physics, Chinese Academy of Sciences invested a large amount of scientific research funds to mobilize research forces in multiple disciplines such as catalysis, materials, and biological analysis, and set up a joint research team to produce filtration, virus elimination, and detection. Technology and many other scientific research achievements.
In December 2019, a new type of coronavirus was raging. The virus and SARS virus belong to the same family of coronaviruses, and their genome sequences have a high degree of similarity. The Dalian Institute of Physics of the Chinese Academy of Sciences restarted the work 17 years ago for the first time. Based on the previous work, it upgraded the technical means and focused on the research on the batch preparation technology of catalytic materials and the performance and mechanism of material adsorption and inactivation of viruses. After two years of research, the industrialization of catalytic materials has been realized.
The virus inactivation experiment of the Anhui Provincial Center for Disease Control and Prevention showed that the two nano-functional materials developed can directly adsorb and inactivate the new material coronavirus, with an inactivation efficiency of 99.9%. The two materials can be carried on non-woven fabrics, honeycomb and metal structured carriers, and have been successfully applied in various fields such as personal protection, air purification and disinfection.
As a new generation of natural polymer filter material, nano cellulose has the advantages of light weight, good air permeability, environmental friendliness, and biodegradability. The diameter of nanocellulose is about 50 nanometers, the pores formed are on the nanometer level, and the diameter of the virus is about 100 nanometers. Therefore, by loading the nano-cellulose on the micron-grade meltblown cloth to construct a micro-nano filter layer, the virus can be directly physically filtered without relying on electric charge, which has a long-term protective effect.
At present, the civilian mask products containing the nano-functional materials for adsorbing and inactivating viruses by the Dalian Institute of Chemical Technology have been on the market, and the nano-cellulose masks will be on the market in the near future.
Scientific research institutes and enterprises jointly build mask laboratories to jointly carry out new exploration of new mask development and new technology application models, accelerate the industrialization of scientific and technological achievements through technical cooperation and personnel training, and establish a cooperative mechanism of benign interaction between knowledge innovation and technological innovation , Will boost the production and promotion of new high-efficiency filter masks for virus protection.