Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 346-354 |
| Journal | Industrial Crops and Products |
| Volume | 67 |
| DOIs | |
| Publication status | Published - 2015 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- flax Bio-composites
- tannin
- mechanical performances and surface treatments
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Improving mechanical properties of novel flax/tannin composites through different chemical treatments. / Zhu, J.; Zhu, H.; Immonen, Kirsi; Brighton, J.; Abhyankar, H. (Corresponding Author).
In: Industrial Crops and Products, Vol. 67, 2015, p. 346-354.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Improving mechanical properties of novel flax/tannin composites through different chemical treatments
AU - Zhu, J.
AU - Zhu, H.
AU - Immonen, Kirsi
AU - Brighton, J.
AU - Abhyankar, H.
N1 - Project code: 70473
PY - 2015
Y1 - 2015
N2 - Due to the inherent environmental benefits of using renewable materials, mimosa tannin resin (a natural phenolic resin) reinforced by flax fibres could offer desirable characteristics (lightweight, economic and low environmental impact) aiming at reducing carbon footprint of superlight electric vehicles. The non-woven flax mats were chemically treated (alkali, acetylation, silane and enzymatic treatment) to prepare tannin composites through compression moulding (130 °C/35 min/1.5 MPa). The change in fibre morphology was seen in SEM (scanning electronic microscope) images. The treatments (except enzymatic) showed significant improvement in tensile properties, along with enhancement (acetylation) in flexural properties, but little effect on impact resistance for all treatments. APS (aminopropyl triethoxy siloxane) treated composites showed highest tensile strength of 60 MPa and modulus of 7.5 GPa. BTCA (butanetetracarboxylic acid) treatment led to the highest flexural strength of up to 70 MPa. NaOH treatment retained the impact failure force of about 0.5 kN and sustained the saturation energy (4.86 J) compared to untreated composites (4.80 J).
AB - Due to the inherent environmental benefits of using renewable materials, mimosa tannin resin (a natural phenolic resin) reinforced by flax fibres could offer desirable characteristics (lightweight, economic and low environmental impact) aiming at reducing carbon footprint of superlight electric vehicles. The non-woven flax mats were chemically treated (alkali, acetylation, silane and enzymatic treatment) to prepare tannin composites through compression moulding (130 °C/35 min/1.5 MPa). The change in fibre morphology was seen in SEM (scanning electronic microscope) images. The treatments (except enzymatic) showed significant improvement in tensile properties, along with enhancement (acetylation) in flexural properties, but little effect on impact resistance for all treatments. APS (aminopropyl triethoxy siloxane) treated composites showed highest tensile strength of 60 MPa and modulus of 7.5 GPa. BTCA (butanetetracarboxylic acid) treatment led to the highest flexural strength of up to 70 MPa. NaOH treatment retained the impact failure force of about 0.5 kN and sustained the saturation energy (4.86 J) compared to untreated composites (4.80 J).
KW - flax Bio-composites
KW - tannin
KW - mechanical performances and surface treatments
U2 - 10.1016/j.indcrop.2015.01.052
DO - 10.1016/j.indcrop.2015.01.052
M3 - Article
VL - 67
SP - 346
EP - 354
JO - Industrial Crops and Products
JF - Industrial Crops and Products
SN - 0926-6690
ER -