A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Preparation and characterization of new mouldable cellulose-AESO biocomposites




TekijätJoanna Narewska, Lippo Lassila, Pedro Fardim

KustantajaSPRINGER

KustannuspaikkaDORDRECHT; VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS

Julkaisuvuosi2014

JournalCellulose

Tietokannassa oleva lehden nimiCellulose

Lehden akronyymiCellulose

Vuosikerta21

Numero3

Aloitussivu1769

Lopetussivu1780

Sivujen määrä12

ISSN0969-0239

eISSN1572-882X

DOIhttps://doi.org/10.1007/s10570-013-0157-3


Tiivistelmä

A new concept of using acrylated epoxidized soybean oil (AESO) in the production of 3D cellulose biocomposites was evaluated. Cellulose-AESO composites were prepared by dissolving pulp in N,N-dimethylacetamide/lithium chloride and adding AESO and an initiator to the solutions followed by thermal curing and compression moulding at room temperature. The resulting biocomposites were characterized by FE-SEM, FT-IR, XRD, GC, TGA and nano- and microindentation. SEM images indicated the presence of spherical morphology and FT-IR together with TGA results showed no hydrogen or covalent bonding between the two components. The existence of hydrophobic interactions between AESO molecules and cellulose hydrophobic domains was proposed. AESO aggregates captured and covered by cellulose chains increase the flexibility of the composites acting as specific plasticizer and after polymerization introduce strength to the material. It was found that the optimal amount of AESO for achieving both desired hardness and good mouldability should be below 20 %.




Last updated on 2024-26-11 at 14:24