Fabrication of Structural-Coloured Carbon Fabrics by Thermal Assisted Gravity Sedimentation Method

Abstract

Structural-coloured poly(styrene-methyl methacrylate-acrylic acid) (Poly(St-MMA-AA)) deposited carbon fabrics (Poly(St-MMA-AA)/PCFs) with fascinating colours (salmon, chartreuse, springgreen, skyblue, mediumpurple) changing with the (Poly(St-MMA-AA) nanoparticle sizes can be facilely fabricated by the thermal-assisted gravity sedimentation method that facilitates the self-assembly of Poly(St-MMA-AA) colloidal nanoparticles to generate photonic crystals. The particle sizes of Poly(St-MMA-AA) copolymer with core/shell structure varying from 308.3 nm to 213.1 nm were controlled by adjusting the amount of emulsifier during emulsion polymerisation. The presence of the intrinsic chemical information of Poly(St-MMA-AA) copolymer has been ascertained by Raman and Fourier Transform Infrared (FT-IR) Spectroscopy analysis. Colour variation of the as-prepared structural-coloured carbon fabrics (Poly(St-MMA-AA)/PCFs) before and after dipping treatment were captured while using an optical microscope. The structural colours of Poly(St-MMA-AA)/PCFs were assessed by calculating the diffraction bandgap according to Bragg’s and Snell’s laws. The Poly(St-MMA-AA) photonic crystal films altered the electrical properties of carbon fabrics with the resistivity growing by five orders of magnitude. The differential electrical resistivity between Poly(St-MMA-AA)/PCFs and wet Poly(St-MMA-AA)/PCFs combined with the corresponding tunable colours can be potentially applied in several promising areas, such as smart displays, especially signal warning displays for traffic safety.

Colloidal Virus Particles with Hierarchical Nanomorphology and Facile Biosurface Modification

“…These functional groups testify the existence of CNPs. [ 22‐23 ] For CVPs, peaks at 3283, 1635, 1541, 1252 cm –1 which are attributed to the characteristic amine group of ovalbumin, and the characteristic peaks of CNPs were not found here (Figure 3c). From these results, it can be concluded that OVA was successfully coated on the surface of the CVPs.…”

Characterization and evaluation of a novel silver nanoparticles-loaded polymethyl methacrylate denture base: <i>In vitro</i> and <i>in vivo</i> animal study

“…It is a colorless, clear liquid at room temperature and miscible with water at any ratio. Acrylic acid is miscible with water at any proportion, and can be miscible with MMA liquid by way of emulsion polymerization reactions 37,38) . In this study, acrylic acid was first mixed with the NAg solvent and then the NAg suspended in acrylic acid was added to the denture base, which did not only increase the dispersion of the NAg in the denture base but also reduced the generation of bubbles, ensuring appropriate mechanical properties of the resulting denture base.…”

“…Acrylic acid is miscible with water, alcohols, ethers, and chloroform. With water in any proportion, acrylic acid can be miscible by emulsion polymerization induced reactions with MMA liquid 36,37) .…”

Nanotechnology in Clothing and Fabrics

“…Selected companies involved in this fast-developing arena include Nano-Tex, Aspen Aerogel, BASF, and Nano-Horizons. In line with this theme, four representative articles [ 1 , 2 , 3 , 4 ] have been published in this Special Issue:…”

“…As shown by Kan et al [ 1 ], the preparation of poly(styrene-methyl methacrylate-acrylic acid) deposited carbon fabrics (or Poly(St-MMA-AA)/PCFs) with desirable vivid structural colours transforming remarkably from salmon to medium purple (by controlling the Poly(St-MMA-AA) size) was feasible. The concentric shape of Poly(St-MMA-AA), with Poly(MMA-AA) shell and PS core, as well as the chemical composition of the Poly(St-MMA-AA) copolymer, were investigated.…”