13.4 Circular shapeable transparent paperboard with recyclability and marine biodegradability
To mitigate marine pollution from single-use plastics, it is imperative to transition to next-generation commodity materials that are biomass-derived, recyclable, and marine biodegradable in the event of accidental ocean release. Here, we report the development of an optically transparent, millimeter-thick paperboard—termed transparent paperboard (tPB)—produced via the dissolution and coagulation of cellulose. The tPB is composed […]
9.3 Innovative Method for Assessing Penetration Depth of Wood Protective Resins in Spruce Veneer via Infrared Microscopy
Wood requires protection against environmental and biological degradation, therefore, to prolong its service life, a common method is impregnation. A study was conducted, in which acryl urethan modified alkyd impregnation was carried out on spruce veneer. Standard characterization by weight percent gain does not give any indications of the distribution in the wooden structure. The […]
3.3 Development of biobased terpenoid-acrylic copolymers incorporating lignin-based UV blockers for wood protection
One of the main resources for renewable materials has been wood waste. In this sense, terpenes, which are extracted from coniferous trees as well as citrus fruits, are an exploitable category of biomass.The objective of this study is to develop innovative wood coatings using renewable bio-based polyacrylates from terpenoids, a subclass of terpenes used on […]
2.1 Monolithic, hybrid and particulate lignin-based hydrogels for sustainable CO2 capture
Amine-infused hydrogels (AIHs) represent a promising platform for developing solid absorbents with improved CO2 absorption capacity. However, most of them rely on petroleum-based and toxic monomers. Lignin nanoparticles (LNPs) are becoming prominent players at the interface between sustainable nanomaterials technology and chemical science due to their high surface-area-to-mass ratio, which allows them to interact with […]
8.1 Harnessing Water-Induced Functionality in Nanocellulose-Based Products
Due to its high specific surface area and abundant surface polar groups (such as hydroxyl, carboxyl, and other ionic functional groups), nanocellulose exhibits strong interactions with water. The presence of water in nanocellulose can introduce diverse functionalities, serving multiple roles. In this presentation, I will discuss our work on leveraging water to tune the mechanical […]
2.5 Tuning the natural lignin chemical code to change plant biomechanics and environmental resilience
Lignins are phenolic polymers that are differently incorporated between and within the cell wall layers of specific plant cell types. Lignins are essential for plant biomechanical support, water conduction, intercellular cohesion and cell wall hygroscopy in vascular plants (Blaschek et al., 2024). To fulfil these various roles, each cell wall layer and cell type differently […]
7.5 Preparation of defectless TEMPO-oxidized nanocellulose dispersions
Ensuring the quality of cellulose nanofibers (CNFs), particularly in terms of dispersibility and defect density, is crucial for fully utilizing their potential. While CNF dispersibility can now be adjusted by selecting appropriate raw material species or employing specific chemical pretreatments, controlling defects remains a challenge. In our previous study, we found that the dent defects […]
10.2 3D-Visualisation of the nanoscale properties of cellulose microfibrils in wood by combined SWAXS and high-resolution microtomography
As the demand for sustainable products grows, forest-derived materials, particularly biodegradable, lignocellulosic plant fibres, play an essential role in addressing global societal and economic needs. These materials owe their exceptional mechanical properties to the hierarchical arrangement of their cellular structures, composite-like cell walls and the ultrastructural characteristics of the cellulose microfibrils. This is the case especially for wood, in which […]
11.6 Fabrication of Lignosulfonate-Based Supercapacitor Electrodes through Self-Activation and Two-Step CO₂ Activation with Plasma Treatment
In this study, we aim to promote the valorization of technical lignin derived from the pulp and paper industry and develop sustainable and environmentally friendly energy storage devices. Lignosulfonate was used as a precursor, and two different approaches were employed: self-activation and two-stage CO2 physical activation, producing porous carbon (PC) and lignosulfonate-activated carbon (LSAC), respectively. […]
1.1 Pulping with Oxygen
To contribute to more sustainable pulp and paper processes, finding alternative processes to liberate the fibers from the wood matrix is crucial and urgent. Oxygen delignification has several benefits to the industry, and recently, its interest has grown exponentially. In this work, a process was developed in which oxygen was directly applied to wood chips […]
