Results 71 to 80 of about 219,555 (344)

Synthesis and Tribological Behavior of Ultra High Molecular Weight Polyethylene (UHMWPE)-Lignin Composites

open access: yesLubricants, 2016
In this paper, we report the synthesis and characterization of ultra-high molecular weight polyethylene (UHMWPE)-lignin composites. During this study four different compositions, namely UHMWPE, UHMWPE-13 wt. % lignin, UHMWPE-25 wt. % lignin and UHMWPE-42.
Surojit Gupta, M. F. Riyad, Yun Ji
doaj   +1 more source

Production and Application of Lignosulfonates and Sulfonated Lignin.

open access: yesChemSusChem, 2017
Lignin is the largest reservoir of aromatic compounds on earth and has great potential to be used in many industrial applications. Alternative methods to produce lignosulfonates from spent sulfite pulping liquors and kraft lignin from black liquor of ...
T. Aro, P. Fatehi
semanticscholar   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

open access: yesAdvanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata   +4 more
wiley   +1 more source

Kinetic understanding of fiber surface lignin effects on cellulase adsorption and hydrolysis

open access: yesResults in Surfaces and Interfaces
Cellulase hydrolysis is strongly affected by adsorption, which is inhibited by the non-productive binding between cellulase and lignin. However, lignin-bonded cellulase has also been found to be active in hydrolysis. Thus, in this work, lignin effects on
Jinglei Xie, Shijie Liu
doaj   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov   +3 more
wiley   +1 more source

High Lignin Content Carbon Fiber Precursors Wet-Spun from Low-Cost Ionic Liquid Water Mixtures [PDF]

open access: hybrid, 2023
Shirley Min Yang   +2 more
openalex   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Emergence of lignin-carbohydrate interactions during plant stem maturation visualized by solid-state NMR

open access: yesNature Communications
Lignification waterproofs and strengthens secondary plant cell walls but increases the energy cost of sugar release for biofuels. The physical association between lignin and the carbohydrate scaffold that accommodates lignin polymerization, along with ...
Peng Xiao   +7 more
doaj   +1 more source

Synthesis and Characterization of Lignin-Based Polyurethane as a Potential Compatibilizer

open access: yesIndonesian Journal of Chemistry, 2018
Lignin is one of the most abundant biopolymer on earth. It has polar and non-polar side due to its hyperbranched structure, but the polarity of lignin has a higher tendency than non-polarity.
Salma Ilmiati   +4 more
doaj   +1 more source

Lignin [PDF]

open access: yes, 1989
This books reports on lignins, irregular phenylpropane biopolymers that make up approximately 20-30% of the available polymeric content of hardwood tree stems. In plants, lignin is second in natural abundance only to cellulose. This material offers, therefore, a valuable resource that must be utilized if the full value of harvested tree crops is to be ...
openaire   +1 more source

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