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Conductive Regenerated Cellulose Fibers for Multi-Functional Composites: Mechanical and Structural Investigation

Materials, 2021-04, Vol.14 (7), p.1746 [Peer Reviewed Journal]

2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2021 by the authors. 2021 ;ISSN: 1996-1944 ;EISSN: 1996-1944 ;DOI: 10.3390/ma14071746 ;PMID: 33916305

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Title:
Conductive Regenerated Cellulose Fibers for Multi-Functional Composites: Mechanical and Structural Investigation
Author: Al-Maqdasi, Zainab ; Joffe, Roberts ; Ouarga, Ayoub ; Emami, Nazanin ; Chouhan, Shailesh Singh ; Landström, Anton ; Hajlane, Abdelghani
Subjects: Carbon fibers ; Cellulose fibers ; Composite materials ; conductive cellulose fibers ; Copper ; Copper plating ; Cyber-Physical Systems ; Cyberfysiska system ; Differential scanning calorimetry ; electroless copper plating ; Electroless plating ; Epoxy resins ; Experimental Physics ; Experimentell fysik ; functional composites ; Impact strength ; Investigations ; Machine Elements ; Maskinelement ; Mechanical properties ; Molecular structure ; Monitoring ; Monitoring systems ; Plating baths ; Polymera kompositmaterial ; Polymeric Composite Materials ; Polymers ; Raman spectra ; regenerated cellulose fibers (RCFs) ; Stiffness ; Structural integrity ; Surface defects ; Thermal stability ; Yarn
Is Part Of: Materials, 2021-04, Vol.14 (7), p.1746
Description: Regenerated cellulose fibers coated with copper via electroless plating process are investigated for their mechanical properties, molecular structure changes, and suitability for use in sensing applications. Mechanical properties are evaluated in terms of tensile stiffness and strength of fiber tows before, during and after the plating process. The effect of the treatment on the molecular structure of fibers is investigated by measuring their thermal stability with differential scanning calorimetry and obtaining Raman spectra of fibers at different stages of the treatment. Results show that the last stage in the electroless process (the plating step) is the most detrimental, causing changes in fibers' properties. Fibers seem to lose their structural integrity and develop surface defects that result in a substantial loss in their mechanical strength. However, repeating the process more than once or elongating the residence time in the plating bath does not show a further negative effect on the strength but contributes to the increase in the copper coating thickness, and, subsequently, the final stiffness of the tows. Monitoring the changes in resistance values with applied strain on a model composite made of these conductive tows show an excellent correlation between the increase in strain and increase in electrical resistance. These results indicate that these fibers show potential when combined with conventional composites of glass or carbon fibers as structure monitoring devices without largely affecting their mechanical performance.
Publisher: Switzerland: MDPI AG
Language: English
Identifier: ISSN: 1996-1944
EISSN: 1996-1944
DOI: 10.3390/ma14071746
PMID: 33916305
Source: GFMER Free Medical Journals
PubMed Central
SWEPUB Freely available online
ROAD: Directory of Open Access Scholarly Resources
ProQuest Central
DOAJ Directory of Open Access Journals

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Conductive Regenerated Cellulose Fibers for Multi-Functional Composites: Mechanical and Structural Investigation

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