1 research outputs found
Preparation and Application of High-Efficiency, Antibacterial, and Antiviral PET–PTHP Fibers
Transmission through the respiratory tract is one of
the most important
ways for bacteria and viruses to infect the human body; the use of
high-performance antibacterial and antiviral protective equipment
is the most effective way to prevent the spread of respiratory diseases.
However, at present, most personal protective equipment lacks the
ability to kill pathogens. In this paper, a kind of polytetrahydropyrimidine–polyethylene
terephthalate functional fiber (PET–PTHP fibers) with highly
sustained antibacterial and antiviral properties was prepared. The
inactivation rate of the fibers against Staphylococcus
aureus and Escherichia coli was as high as 99.99%, and the antibacterial time was more than
72 h. The fibers have an obvious destructive effect on lentiviruses
and can reduce the infection rate of lentiviruses in BxPC-3 cells
from 25.4 to 9.7%. The cytotoxicity test, cell live/dead staining
test, and cell proliferation test all confirmed that PET–PTHP
fibers have no obvious cytotoxicity and good cytocompatibility. By
applying the functional fibers to the inner layer of the masks, a
new type of mask with adsorption, filtration, and killing properties
against pathogens was prepared. The filtration efficiency of the new
masks was 99.3%, and the pressure drop was 104 Pa. The new masks have
excellent air permeability and filtration effect, meet the practical
application conditions, and are of grade A; therefore, these masks
provide medical protection as well as kill pathogens at the same time,
further reducing the risk of human infection