Modification of cellulose nanofibre surfaces by He/NH3 plasma at atmospheric pressure

Abstract

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

Fluorination of sized glass fibres for decreased wetting by atmospheric pressure plasma treatment in He/CF4

“…FE-SEM images showed signs of surface cracking in untreated and plasma treated specimens, however no clear difference in roughness could be observed between the treated and untreated fibres. Morphological change [16] was not observed on the sizing surface. Further analysis by atomic force microscopy (AFM) is suggested for nano scale topographical characterization of the surface since this is not detectable by FE-SEM.…”

“…Furthermore, its viscosity is representative of resin used for vacuum infusion of glass fibre composites. [16] As it wets more slowly than water it is easier to record the wetting process. A similar method, albeit with a different data processing method, is described by Shin et al [17] Stitching fibres were not C/C-OH and C-F, respectively.…”

Nanocelluloses: Sources, Pretreatment, Isolations, Modification, and Its Application as the Drug Carriers

“…Researchers have widely applied this method for various modifications, such as increasing material–cell interaction, introducing the surface of NC with hydrophobicity or hydrophilicity characteristics, and incorporating chitosan towards cellulose substrates. For instance, Kusano et al [ 133 ] modified CNF by utilizing dielectric-based plasma discharge treatment, leading to the formation of many carboxyl groups, carbonyl groups, and oxygen-containing groups on the surface of nanocellulose [ 133 ]. Moreover, assisted ultrasonic irradiation combined with plasma discharge treatment can refine the wetting and oxidation of the nanofibers coating.…”

High‐speed plasma treatment of polyethylene terephthalate films using ultrasound assisted dielectric barrier discharge

“…Nonetheless, ultrasonic introduction to a plasma driven at a kilohertz range typically induces only moderate improvement of treatment effect, which makes its practical industrial applicability rather unconvincing 18–28 . One exception is reported in previous studies 29,30 presenting that marked difference is found in wettability of polyester surfaces when a DBD is generated at 50 Hz with a power less than 1 W. It is however unclear if the difference would be attributed to the low frequency or the low power to operate the plasma.…”