Contact
    Start Publications Sustainable iridescence of cast and shear coatings of cellulose ...
    ←  Publication Finder
    Attension

    Sustainable iridescence of cast and shear coatings of cellulose nanocrystals

    Year: 2021

    Journal: Carbohydr. Polym., Volume 273, DEC 1

    Authors: Guo, Mengna; Li, Yu; Yan, Xueyi; Song, Jianing; Liu, Dagang; Li, Qin; Su, Fan; Shi, Xingwei

    Organizations: National Natural Science Foundation of China [51473077, 21277073]; Anhui Provincial Natural Science Foundation [2008085MB35]; 333 HighLevel Talent Cultivation Program of Jiangsu Province

    Keywords: Cellulose nanocrystal; Structure color; Substrate effects; Shear coating; Cast coating

    As an eco-friendly sustainable iridescent coating, cholesteric cellulose nanocrystal (CNC) is susceptible to substrate effects or shearing effects. In this work, interface interaction and liquid crystal phase transition were evaluated for fabricating iridescent cast or shear coatings of CNCs onto substrates of polystyrene, glass, ceramic, wood, stainless steel, metal, or metal alloy. Three types of substrate effects and four categories of shearing effects on the structure color mechanism of CNC coatings were proposed. Practically, several efficient approaches, such as increasing colloidal concentration, enhancing water-retention of substrates, raising processing temperature, slowing down shearing speed, or doping functional additives were involved. Hence, a feasible strategy was provided for preparing sustainable, iridescent, stable, and industrially scalable coatings of CNCs.
    View publication