To Solve The Problem Of Multiple Use Of Masks, Jiangxi First Wood And Changchun Gao Qi Developed Alternative Melt Blown Fabric Filters.

As the outbreak of the new crown pneumonia has entered a critical juncture, the demand for protective clothing such as respirators has increased sharply, and the masks have become the necessary epidemic prevention materials for all.


A few days ago, Premier Li Keqiang of the State Council made a special trip to the production of a mask for enterprise supervision in Haidian District, Beijing. When he learned that the nanofiber membrane material could replace the melt blown fabric as a mask filter material and could solve the problem of multiple use of masks, Li Keqiang asked the drug supervision departments to speed up the examination and approval, and once passed, increase mass production.


According to the reporter's understanding, the nanofiber membrane is made of polyimide nanogaerogel film jointly developed by Jiangxi first wood and Changchun Gao Qi.


Over the years, Jiangxi advanced materials nanofiber Technology Co., Ltd. and Changchun Gao Qi polyimide materials Co., Ltd. have created self-supporting polyimide nanofiber aerogel membrane products by accumulating on the road of polyimide materials and nano electrospinning large-scale business. In this special period, the two companies are playing a unique role in a unique way.


Included in the state's major public relations projects


In February 7th, under the invitation of the Beijing Municipal Health Protection Committee, leaders and technicians of Jiangxi advanced material nanofiber Technology Co., Ltd. and Gao Qi polyimide material Co., Ltd. rushed to Beijing to participate in the seminar on Beijing major national public relations project held by the Beijing Municipal Health Protection Commission and the Beijing leadership. The meeting decided: "to implement the general secretary of Xi Jinping in a comprehensive way" With regard to the important directive spirit of the new type of coronavirus pneumonia epidemic prevention and control and the decision and deployment of the CPC Central Committee and the State Council, in view of the severe situation of the shortage of relevant prevention and control materials in China, we are planning to build a major national epidemic prevention project in Beijing. "


After previous tests and production verification, the aerogel film was used instead of melt blown fabric filtration, surface layer combined with other materials to make reusable, new respirators adapted to a variety of killing methods. In February 14th, Beijing SASAC issued the first document: Jiangxi first material nanofiber Technology Co., Ltd. and Changchun high Qi polyimide material Co., Ltd. were listed as the National Key Epidemic science and technology research project cooperation enterprises in Beijing, and started to intensify production during the epidemic period, and the products were put into the market early. It is understood that at present, the material has been completed through all tests, fully meet the particulate matter, bacterial filtration efficiency above 99% and filtration resistance qualified three indicators.


Go all out to reach 10000 meters per day.


At present, the Jiangxi advanced material company has been approved for re employment in February 11th, resumed work and resumed production. Changchun Gao Qi R & D personnel also started at the same time to cooperate with Jiangxi to realize the new material as early as possible in the epidemic situation. Jiangxi first made 6000 square meters of factory buildings urgently, and invested manpower and material resources to transform the production line and adjust the technology. At present, the daily output reached 10000 meters, and all efforts were made to provide support for downstream related enterprises.


A few days ago, the national development and Reform Commission said that the daily production of mask has exceeded 100 million, and the supply of masks will continue to improve. But compared to the huge demand of society, we should use masks scientifically and reduce unnecessary waste.


According to the material developer, the market advantage of aerogel membrane instead of melt blown fabric filtration technology lies mainly in meeting the long-term storage strategic material reserve demand in the country, as well as the differentiated application in washable and reusing mask. The polyimide nano aerogel membrane filter material can make mask reuse and reduce material waste.


Experts believe that as the Pearl of Pyramid, the polyimide material also has comprehensive properties: electrostatic adsorption, self antibacterial and bacteriostasis, good biocompatibility, good flame retardancy and weatherability. It can tolerate 200 degree high temperature washing, high temperature disinfection, tolerate most chemical solvents such as alcohol and ethoxy ethane, and tolerate various kinds of killing methods such as ultraviolet and radiation disinfection. Its performance includes no attenuation of filtration performance.