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High performance natural fibre hybrid composites based on biobased thermoset resins for use in technical applications
Högskolan i Borås, Institutionen Ingenjörshögskolan.
Högskolan i Borås, Institutionen Ingenjörshögskolan.
2009 (Engelska)Konferensbidrag, Poster (med eller utan abstract) (Övrigt vetenskapligt)
Abstract [en]

Health related issues, stringent environmental protection policies, search for cost effective and alternative materials and quest for renewability, sustainability and high performance materials for technical applications has led to an intense research in manufacturing biobased composites which are based on renewable thermosetting resins and natural fibres. The combination of biobased thermosetting resins with two different natural fibre reinforcements could lead to improved mechanical properties of the composite. Biobased thermoset polymers are comparable to the synthetic thermosetting polymers from petrochemicals. In this study, two different biobased resins were used as matrix and both non woven flax fibre and woven flax fabric were combined as reinforcements. The composites were made by compression moulding process. The fibres were hand laid-up and impregnation was done manually. The curing temperature was 170°С and at 40 bar. The stacking sequence of the fibres was in different orientations such as 0º, +45º and 90º. The manufactured hybrid composites have high tensile strength and stiffness and the flexural strength and modulus was also high. These composites can compete favourably with glass fibre reinforced composites in terms of strength and stiffness.1, 2 A tensile strength of about 119 MPa and Young’s modulus of 13.8 GPa was achieved, while the flexural strength and modulus is about 201 MPa and 24 GPa respectively. For the purpose of comparison, composites were made with the combination of woven fabric and e-glass fibre. One ply of an e-glass fibre mat was put in the mid-plane and this increased the tensile strength considerably up to 168 MPa. Some of the composites were made with the resin blended with styrene and the results show a higher modulus.

Ort, förlag, år, upplaga, sidor
2009.
Nyckelord [en]
hybrid composites, thermoset resins, natural fibres, compression moulding
Nyckelord [sv]
Energi och material
Nationell ämneskategori
Industriell bioteknik
Identifikatorer
URN: urn:nbn:se:hb:diva-6278Lokalt ID: 2320/5810OAI: oai:DiVA.org:hb-6278DiVA, id: diva2:886965
Konferens
Baekeland 2009, "2nd International Symposium on Thermosets", Antalya, Turkey and ECCM 14, Budapest on the 8th of June 2010
Tillgänglig från: 2015-12-22 Skapad: 2015-12-22 Senast uppdaterad: 2016-11-20Bibliografiskt granskad

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Adekunle, KayodeSkrifvars, Mikael

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