Chiral Self-Assembly of Cellulose Nanocrystals is Driven by Crystallite Bundles [PDF]
The transfer of chirality across length-scales is an intriguing and universal natural phenomenon. However, connecting the properties of individual building blocks to the emergent features of their resulting large-scale structure remains a challenge. In this work, we investigate the origins of mesophase chirality in cellulose nanocrystal suspensions ...
arxiv +1 more source
Theoretical study of cellulose II nanocrystals with different exposed facets
Derived from the most abundant natural polymer, cellulose nanocrystal materials have attracted attention in recent decades due to their chemical and mechanical properties.
Can Leng+8 more
doaj +1 more source
Imaging Cellulose Nanocrystals [PDF]
Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.
J.W. Gilman+5 more
openaire +2 more sources
Critical-like gelation dynamics in cellulose nanocrystal suspensions [PDF]
We use time-resolved mechanical spectroscopy to offer a detailed picture of the gelation dynamics of cellulose nanocrystal (CNC) suspensions following shear cessation in the presence of salt. CNCs are charged, rodlike colloids that self-assemble into various phases, including physical gels serving as soft precursors for biosourced composites.
arxiv +1 more source
Adsorption of a fabric conditioner on cellulose nanocrystals: Synergistic effects of surfactant vesicles and polysaccharides on softness properties [PDF]
Concentrated fabric conditioners are water-based formulations containing 10 wt. % of cationic surfactants that are deposited on textile fibers during the rinse cycle in a washing machine to make them smoother and softer to touch. In topical formulations, the concentration of cationic surfactants is reduced by half, this reduction being compensated by ...
arxiv +1 more source
Cellulose nanocrystals mimicking micron sized fibers to assess the deposition of latex particles on cotton [PDF]
We report the interactions of cationic latex particles synthesized by RAFT/MADIX-mediated emulsion polymerization with anionic cellulose nanocrystals (CNCs) and cotton fabrics. Latexes in the size range 200-300 nm with poly(butyl acrylate) or poly(2-ethylhexyl acrylate) hydropho-bic cores and hydrophilic shell are synthesized.
arxiv +1 more source
Preparation and Surface Functionalization of Carboxylated Cellulose Nanocrystals
In recent years, cellulose nanocrystals (CNCs) have emerged as a leading biomass-based nanomaterial owing to their unique functional properties and sustainable resourcing.
Edmond Lam, Usha D. Hemraz
doaj +1 more source
Effect of Cellulose Nanocrystals Nanofiller on the Structure and Sorption Properties of Carboxymethyl Cellulose–Glycerol–Cellulose Nanocrystals Nanocomposite Systems [PDF]
Biobased materials present a great interest due to their properties and biodegradability. Cellulose nanocrystals (CNC) nanofiller, in various amounts, was incorporated into a carboxymethyl cellulose (CMC)–glycerol (G) matrix in order to obtain nanocomposite systems with improved properties.
Maria-Cristina Popescu+2 more
openaire +3 more sources
Flexible Photonic Cellulose Nanocrystal Films [PDF]
The fabrication of self-assembled cellulose nanocrystal (CNC) films of tunable photonic and mechanical properties using a facile, green approach is demonstrated. The combination of tunable flexibility and iridescence can dramatically expand CNC coating and film barrier capabilities for paints and coating applications, sustainable consumer packaging ...
Guidetti, Giulia+3 more
openaire +3 more sources
Cellulose-Based Reflective Liquid Crystal Films as Optical Filters and Solar Gain Regulators [PDF]
Many promising approaches for designing interactions of synthetic materials with light involve solid optical monocrystals and nanofabricated photonic crystal structures with spatially periodic variations of refractive index. Although their high costs limit current technological applications, remarkably, such photonic and optically anisotropic materials
arxiv +1 more source