Work

Polycondensation‐Derived High‐Molecular Weight Lignin as Nonblended Precursor for Carbon Fibers

Year: 2024

Type: article

Abstract: A new concept for the controlled chain‐extension of lignin has been developed. A mixture of trioxane as formaldehyde source, resorcinol as chain extender, and lignin allows to prepare high molecular weight precursor fibers by melt‐spinning, which can be spun on a semitechnical scale. Chain extension with resorcinol bridged by methylene groups is achieved during the stabilization process of the precursor fiber. After carbonization, carbon fibers (CFs) with an average diameter of 18 µm show an average tensile strength of 0.78 GPa and a Young's modulus of 106 GPa. A maximum tensile strength of 2.44 GPa and a Young's modulus of 294 GPa are reached with fibers 9.7 µm in diameter.

Source: Macromolecular Materials and Engineering

DOI: 10.1002/mame.202400388

Authors: Manuel M. Clauss, Erik Frank, Volker Bauch, Lisa Kuske, Michael R. Buchmeiser

Institutions: Deutschen Institute für Textil und Faserforschung, University of Stuttgart

Language: English

Topic: Lignin and Wood Chemistry

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,000

OpenAlex ID: W4405724224

FWCI: 0.314

Cites: 37

Cited by: 3

Related to: 10