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Mechanical properties for bio-based thermoset composites made from lactic acid, glycerol and viscose fibers
University of Borås, Faculty of Textiles, Engineering and Business. (Polymerteknologi)ORCID iD: 0000-0002-6596-8069
(Polymerteknologi)
University of Borås, Faculty of Textiles, Engineering and Business. (Polymerteknologi)
(Polymerteknologi)
Show others and affiliations
2015 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 22, no 1, p. 603-613Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2015. Vol. 22, no 1, p. 603-613
National Category
Polymer Technologies
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-3981DOI: 10.1007/s10570-014-0500-3ISI: 000350877100049Scopus ID: 2-s2.0-84925463414OAI: oai:DiVA.org:hb-3981DiVA, id: diva2:881570
Available from: 2015-12-11 Created: 2015-12-09 Last updated: 2018-11-30Bibliographically approved
In thesis
1. Development of biocomposites from lactic acid thermoset resins and cellulose fibre reinforcements
Open this publication in new window or tab >>Development of biocomposites from lactic acid thermoset resins and cellulose fibre reinforcements
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Synthesis of polymers from renewable origin has been reported by many authors and it has been found out that it has enormous potential and can serve as alternative to conventional thermoplastics and thermosets in many applications. The use of these renewable resources will provide sustainable platforms to substitute fossil fuel-based materials. To date, efforts made to produce 100% bio-based thermosetting materials have yet to be achieved. Many studies have been reported on increasing the renewability ratio of thermoset materials produced.

A lot of reports have been made on the synthesis of thermoplastic resins from lactic acid for biomedical applications such as tissue engineering but only few reports have been made on composite applications. The issue of high melt viscosity of thermoplastic resins from lactic acid has been of paramount problem because of its difficulty in impregnation into fibre reinforcement. Bio-based thermoset resins have been produced for composite applications from plant oils and improved mechanical properties have been achieved.

In this thesis, an alternative route for synthesis of lactic acid based thermoset resins have been explored to solve the above problem. Thermoset resins were synthesized from lactic acid with different co-reactants and were characterized using NMR, FT-IR, DSC, DMA and TGA. Their rheological properties were also investigated. The resins were reinforced with natural and regenerated cellulose fibres in non-woven and woven form, and with different fibre alignment and fibre loading. The resulting composites were characterized by mechanical testing regarding tensile, flexural and impact strength, and by SEM analysis regarding morphology.

The results showed that these composites could possibly be used in automobile, transport, construction and furniture applications, particularly for interior purposes. The resins produced were found to be promising materials for composite production due to the good mechanical properties achieved.

Place, publisher, year, edition, pages
Borås: Högskolan i Borås, 2015. p. 47
Series
Skrifter från Högskolan i Borås, ISSN 0280-381X ; 58
Keywords
lactic acid, thermoset resin, renewable resources, natural fibre, regenerated cellulose fibre, composite
National Category
Environmental Biotechnology
Research subject
Resource Recovery
Identifiers
urn:nbn:se:hb:diva-23 (URN)978-91-87525-51-3 (ISBN)978-91-87525-52-0 (ISBN)
Public defence
2015-05-13, E310, University of Borås, Allégatan 1, Borås, 10:00 (English)
Opponent
Available from: 2015-05-19 Created: 2015-03-06 Last updated: 2015-12-18Bibliographically approved

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Skrifvars, MikaelBakare, Fatimat OluwatoyinÅkesson, Dan

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