Multi-Component Nanofiber Composite Membrane Enabled High PM0.3 Removal Efficiency and Oil/Water Separation Performance in Complex Environment

Cellulose/Poly(meta-phenylene isophthalamide) Light-Management Films with High Antiultraviolet and Tunable Haze Performances

“…Meanwhile, the absorption peak at around 899 cm –1 is weak for the CPs, while it enhanced intensely for the regenerated films. All the above phenomena indicate the changes of hydrogen bonds and the transition of cellulose from I to II phase after regeneration, which is in correspondence with our former results. − Additionally, PMIA short fibers demonstrate peaks at approximately 1654, 1608, and 1538 cm –1 , assigned to the vibration of the CO (amide) stretching, aromatic ring stretching, and −NH– bending, which are characteristic peaks for the PMIA structure. , Taking the −NH– bending vibration (1538 cm –1 ) and aromatic ring stretching vibration (1608 cm –1 ) as references, it can be concluded that these two peaks are enhanced obviously with more content of PMIA, indicating the successful and homogeneous incorporation of PMIA into the cellulose matrix, which is important to the property of the cellulose/PMIA composite films.…”

“…The thermal performance of materials is important for their actual application, so the thermogravimetric analyzer under a nitrogen atmosphere was used to evaluate the thermal stability of the cellulose film and all cellulose/PMIA composite films. As demonstrated in Figures d and S6, the weight loss process of CPs and the regenerated films mainly contained two intervals, and the first weight loss process before 150 °C is attributed to the volatilization of bound water, while the second thermal period at around 260–420 °C is ascribed to the decomposition of the cellulose macromolecules . However, CPs display the highest onset temperature ( T onset , 300 °C) and the highest temperature of maximum weight loss rates ( T max , 390 °C), because of their high degree of polymerization and crystallinity .…”

Bicomponent PLA Nanofiber Nonwovens as Highly Efficient Filtration Media for Particulate Pollutants and Pathogens

“…In comparison, the nanofiber membrane fabricated by electrospinning technology has superior characteristics of thin diameter, large specific surface area, interconnected pore structure, and high porosity, which are conducive to high interception and capture of tiny aerosol particles [10][11][12]. Under unremitting researches, a large amount of high molecular polymer materials, such as PVDF, PSA, PAN, and PMIA, have been successfully fabricated by the electrospinning method [13][14][15][16]. Ding et al reported an integrated microfiber, nanofiber and nanonets filter by a combination of three layers with different fiber diameters in sequence [17].…”

High-performance multifunctional electrospun fibrous air filter for personal protection: A review

“…However, in exchange for high filtration efficiency with thick and tight fibrous accumulation, it will make breathing difficult or even suffocate [41] . Therefore, filtration with high efficiency and low resistance has become the basic demand of high–performance electrospun air filter for personal protection [42] , [43] , [44] . Next, the preparation process and filtration performance of electrospun air filter will be introduced in detail.…”