Stretching the liquid polymer to produce nanofibers for improving the efficiency of cloth face masks. Image source: BYU Photo
Nowadays, cloth masks that many people are exercising provide some protection
. However, they are usually much less than the professional N95 masks used by medical staff.
This may change soon. Recently, students from BYU School of Engineering and
Developed a nanofiber membrane that can be sandwiched between cloth pieces in a homemade mask.
Although today's typical cloth masks may block less than 50% of virus particles, this kind of membrane (which can be made of simple and inexpensive materials) will be able to block 90% to 99% of particles, thereby maintaining breathability while maintaining air permeability. Improve effectiveness.
The membrane is made by a process called "electrospinning," which involves dissolving a polymer plastic in a solution and then using an electric current to move the polymer droplets down through a needle. As the droplet accelerates, it stretches into very thin fibers and retains an electrostatic charge.
"These nanofibers will randomly fall on the collector to create a non-woven web," said Katie Varela, senior head of mechanical engineering at BYU on the project team.
She explained that the remaining charge in the fiber is beneficial because virus particles also carry an electrostatic charge. "When they are close to your mask, they are attracted to the mask by static electricity and cannot pass through, so you can prevent you from inhaling the virus."
In addition to the significant increase in efficacy, another major advantage of nanofiber masks is that, unlike traditional N95 masks, the masks are known for being hot and stuffy, and they allow air (water) and (filtered) heat to circulate.
Take a closer look at some of the nanofibers that were recently spun and put on a disk for testing. Image source: BYU Photo
Will Vahle, Director of Nanos Foundation, said: “Not only is it difficult to find N95 masks nowadays, but if you don’t wear the best masks, it’s useless.” “The breathability of our nanofiber membranes is the sixth of the existing N95 masks Times, making them cooler, drier and more comfortable."
The group plans to develop instructions for creating open source membranes. They hope that non-profit organizations will follow the instructions to set up places in the local area where people can wear masks to install films. They also hope that other engineers will use their work as a springboard to produce more effective filters.
"We have our own proprietary nanofiber production process," said Waller, who originated the project, "but we realized, hey, we have some expertise in this area-why don't we combine these and publish any A version that anyone can do?"
Vahle said that when Vahle and his colleagues worked with BYU on the project, BYU “seized the opportunity”. In addition to providing funding and facilities, the university also associates the company with “excellent students who have indeed demonstrated an incredible work ethic and motivation to help those in need.”
The use of cutting-edge science to have an immediate positive impact is also very valuable to BYU students.
"This experience makes things very real," Varela said. "I am very happy to be able to help myself in the fight against COVID-19 to help people around the world and in my community."
Hope for a healthy supply... Are you kidding me?
When can I buy a nanofiber filter
Made in the USA, nanafilters are here:
I want to try nano fabric.
My son is an assistant principal and his wife is also in elementary school, but a teacher returned to school within a short time and sent their three-month-old child to day care. We can get some of them in any way. I was very scared even the whole person, even the brave face.
When and where can I buy nano fabrics. I hope soon. I want to use some masks for the masks I make for children who are engaged in important jobs.
I also want to know where to find and buy nano fabrics in the yard.
The sewing machine is ready
Nothing will work, it will kill everyone on earth!
Interested to try it really! ! !
Thank you for the 4 pieces of information about nanofabrics. Want 2 to buy this fabric when it is available. Thanks also to 2 scientists who created this fabric.
The surprising opening plan was announced. The election happened very quickly.
All of this will restore more than 95% of people to their original condition, or even not feel or know they have it.
The facts they give us are constantly changing. Therefore, if you fail to do so, we will be condemned, and if you fail to do so, then we will be condemned.
One thing is for sure. The greatness of America will reveal solutions and truth. God bless America.
Yes it is. This is exactly how the Communists of CNN and the Democratic Party operate. Create a bunch of lies, bottle people with stupid pills, and do everything in his power to destroy this president. He has done incredible good deeds. The mainstream liberals hate Satan and the abortion-worshiping media will never tell people.
By the time everyone realizes that they have been deceived for so many years, and the conservatives are not so stupid after all, it is too late: Welcome to the socialist United States of America, where the people are so nice and so kind to reveal The spirit of tyranny and oppression still exists.
Nanofiber membrane: Please let me know when and where I can buy it.
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