PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 4, Number 1, 2018
with its properties and applications. In this study, CNCs with different polymorphs were produced by a simple polymorphic transformation treatment. The polymorphic changes of CNCs, and their properties including morphology, crystallinity, thermal stability, and re- dispersion ability were systematically investigated. Toward a deeper understanding of the thermal degradation mechanism of nanocellulose, Karin Lichtenstein & Nathalie Lavoine, Polymer Degradation and Stability , Vol.146. Understanding the thermal degradation process of cellulose-nanofibers (CNF) is necessary for developing high-value added CNF-based materials with e.g. fire retardant properties or high thermal stability. This study compares the thermal degradation behavior of softwood pulp before and after TEMPO-mediated oxidation, and that of the respective CNF and TEMPO-oxidized CNF with either sodium carboxylate (T – CNF COONa) or carboxylic acid surface groups (T – CNF COOH). NOVEL PRODUCTS Novel bioactive surface functionalization of bacterial cellulose membrane, Wei Shao et al , Carbohydrate Polymers , Vol.178. Bacterial cellulose (BC) membrane is a promising biopolymer which can be used for tissue implants, wound healing, and drug delivery due to its unique properties, such as high crystallinity, high mechanical strength, ultrafine fibre network structure, good water holding capacity and biocompatibility. However, BC does not intrinsically present antibacterial properties. In the present study, functionalized BC membranes were prepared. Self-assembled cellulose materials for biomedicine: A review, Jisheng Yang & Jinfeng Li, Carbohydrate Polymers , Vol.181. Cellulose-based materials have reached a growing interest for the improvement of biomedicine, due to their good biocompatibility, biodegradability, and low toxicity. Self-assembly is a spontaneous process by which organized structures with particular functions and properties could be obtained without additional complicated processing steps. This article describes the modifications, properties and applications of cellulose and its derivatives, which includes a detailed review of representative types of solvent. Additionally, the applications of cellulose-based materials which can self-assemble into micelles, vesicles and other aggregates, for drug/gene delivery, bioimaging, biosensor, are also discussed. Comparative study of ultra-lightweight pulp foams obtained from various fibers and reinforced by MFC, Y. Liu et al , Carbohydrate Polymers , Vol.182. A range of cellulose- based, ultra-lightweight pulp foams with different morphologies were prepared and reinforced with microfibrillated cellulose (MFC). By careful design of the pulp foam forming process, free-standing ultra-lightweight pulp foams were obtained through high velocity mixing and air/oven drying from cellulose fibre in the presence of surfactant, MFC, and retention aid. The effects of different types of fibres and surfactants on the air uptake volumes and mechanical properties of the foam were systematically investigated. The process developed in this work provides a cost effective approach to fabricate the strong and ultra-lightweight pulp foam, with a density lower than 0.02g/cm 3 , using a standard handsheet former. Fabrication of cellulose/graphene paper as a stable-cycling anode materials without collector, Chunliang Zhang et al , Carbohydrate Polymers , Vol.184. Flexible and foldable devices attract substantial attention in low-cost electronics. Among the flexible substrate materials, paper has several attractive advantages. In our study, we fabricate cellulose/graphene paper by wet end formation (papermaking).
Technical Abstracts
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