Design strategies, properties and applications of cellulose nanomaterials-enhanced products with residual, technical or nanoscale lignin—A review

Ramakrishna Trovagunta, Tao Zou, Monica Österberg, Stephen S. Kelley, Nathalie Lavoine*

*Corresponding author for this work

Research output: Contribution to journalReview ArticleScientificpeer-review

Abstract

With the increasing demand for greener alternatives to fossil-derived products, research on cellulose nanomaterials (CNMs) has rapidly expanded. The combination of nanoscale properties and sustainable attributes makes CNMs an asset in the quest for a sustainable society. However, challenges such as the hydrophilic nature of CNMs, their low compatibility with non-polar matrices and modest thermal stability, slow the development of end-uses. Combination of CNMs with amphiphilic lignin can improve the thermal stability, enhance the compatibility with non-polar matrices and, additionally, endow CNMs with new functionalities e.g., UV shielding or antioxidative properties. This article comprehensively reviews the different design strategies and their influence on properties and applications of CNMs containing lignin in various forms; either as residual lignin, added technical lignin, or nanoscale particles. The review focuses especially on the synergy created between CNMs and lignin, paving the way for new production routes and use of CNM/lignin materials in high-performance applications.

Original languageEnglish
Article number117480
Number of pages23
JournalCarbohydrate Polymers
Volume254
DOIs
Publication statusPublished - 15 Feb 2021
MoE publication typeA2 Review article in a scientific journal

Keywords

  • Cellulose nanomaterials
  • Colloidal lignin particles
  • Ligno-nanocellulose
  • Residual lignin
  • Technical lignin

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