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Development of lignin carbon fibers: Evaluation of the carbonization process
RISE, Innventia.
RISE, Innventia.
2016 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 133, no 38Article in journal (Refereed) Published
Abstract [en]

The use of lignin as a renewable resource for the production of less-expensive carbon fibers has in recent years attracted great interest. In order to develop the strength properties, the stabilization and carbonization processes have to be optimized. For this reason, the process parameters during carbonization have here been studied on stabilized lignin fibers in the temperature interval from 300 to 1300 °C. The effects of temperature, heating rate, and straining of fibers during carbonization on the strength properties of carbon fibers were investigated. The heating rate, in the range from 1 to 40 °C/min, was shown to have no effect on the property development of the fibers. During carbonization with no load applied to the fibers, a shrinkage of 20% was noted. Counteracting the shrinkage by imposing a load on the fibers during the carbonization resulted in fibers with a greater stiffness. The tensile strength was not, however, affected by this loading.

Place, publisher, year, edition, pages
2016. Vol. 133, no 38
Keyword [en]
Biopolymers; Carbon fibers; Carbonization; Heating rate; Lignin; Mechanical properties; Shrinkage; Temperature; Tensile strength; Thermogravimetric analysis, Carbonization process; Effects of temperature; In-fiber; Process parameters; Property development; Renewable resource; Strength property; Temperature intervals, Fibers
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12619DOI: 10.1002/app.43965Scopus ID: 2-s2.0-84977657669OAI: oai:DiVA.org:ri-12619DiVA: diva2:971100
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cited By 0

Available from: 2016-09-15 Created: 2016-09-15 Last updated: 2016-10-31Bibliographically approved

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