Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens

Amelie Tribot; Hélène de Baynast; Cédric Delattre; Philippe Michaud; Claude-Gilles Dussap

Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens

Amelie Tribot, Hélène de Baynast, Cédric Delattre, Philippe Michaud, Claude-Gilles Dussap

Not published at VTT

University of Clermont Auvergne

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific

Abstract

The goal of this exploratory work was to evaluate the influence of two industrial by-products - Kraft lignin from forestry sector, and corn cobs from the French agricultural sector - on biocomposites properties. Several blends involving Kraft lignin and/or corn cob in a PLA matrix were compounded within Valagro Recherche French company. By incorporating 20 % (w/w) of by-products into a PLA matrix, the price of the developed biocomposites is expected to be lower than a PLA-made product. Granulates were injected for further characterizations such as flexural mechanical properties, hardness, thermal properties, surface tension, FT-IR spectroscopy, and density. Incorporation of corn cob and Kraft lignin increased flexural modulus of biocomposites to 3.7 GPa. Flexural strength was not drastically impacted since values ranged around 70 –
85 MPa. It was also observed an increase of biocomposites hardness with Kraft lignin rather than corn cob. DSC thermograms did not reveal any influence of the by-products on glass transition temperature of PLA.
The present product is a thermoplastic material, entirely bio-based, biodegradable, and it was obtained from simple formulation without any use of harmful solvent.

Original language	English
Title of host publication	Proceedings of the Biocomposites Conference Cologne (BCC) 2019
Publication status	Published - 2019
MoE publication type	Not Eligible
Event	8th Biocomposites Conference - Cologne, Germany Duration: 14 Nov 2019 → 15 Nov 2019

Conference

Conference	8th Biocomposites Conference
Country/Territory	Germany
City	Cologne
Period	14/11/19 → 15/11/19

Cite this

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title = "Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens",

abstract = "The goal of this exploratory work was to evaluate the influence of two industrial by-products - Kraft lignin from forestry sector, and corn cobs from the French agricultural sector - on biocomposites properties. Several blends involving Kraft lignin and/or corn cob in a PLA matrix were compounded within Valagro Recherche French company. By incorporating 20 % (w/w) of by-products into a PLA matrix, the price of the developed biocomposites is expected to be lower than a PLA-made product. Granulates were injected for further characterizations such as flexural mechanical properties, hardness, thermal properties, surface tension, FT-IR spectroscopy, and density. Incorporation of corn cob and Kraft lignin increased flexural modulus of biocomposites to 3.7 GPa. Flexural strength was not drastically impacted since values ranged around 70 –85 MPa. It was also observed an increase of biocomposites hardness with Kraft lignin rather than corn cob. DSC thermograms did not reveal any influence of the by-products on glass transition temperature of PLA.The present product is a thermoplastic material, entirely bio-based, biodegradable, and it was obtained from simple formulation without any use of harmful solvent.",

author = "Amelie Tribot and Baynast, {H{\'e}l{\`e}ne de} and C{\'e}dric Delattre and Philippe Michaud and Claude-Gilles Dussap",

year = "2019",

language = "English",

booktitle = "Proceedings of the Biocomposites Conference Cologne (BCC) 2019",

note = "8th Biocomposites Conference ; Conference date: 14-11-2019 Through 15-11-2019",

}

Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens. / Tribot, Amelie; Baynast, Hélène de; Delattre, Cédric et al.
Proceedings of the Biocomposites Conference Cologne (BCC) 2019. 2019.

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific

TY - CHAP

T1 - Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens

AU - Tribot, Amelie

AU - Baynast, Hélène de

AU - Delattre, Cédric

AU - Michaud, Philippe

AU - Dussap, Claude-Gilles

PY - 2019

Y1 - 2019

N2 - The goal of this exploratory work was to evaluate the influence of two industrial by-products - Kraft lignin from forestry sector, and corn cobs from the French agricultural sector - on biocomposites properties. Several blends involving Kraft lignin and/or corn cob in a PLA matrix were compounded within Valagro Recherche French company. By incorporating 20 % (w/w) of by-products into a PLA matrix, the price of the developed biocomposites is expected to be lower than a PLA-made product. Granulates were injected for further characterizations such as flexural mechanical properties, hardness, thermal properties, surface tension, FT-IR spectroscopy, and density. Incorporation of corn cob and Kraft lignin increased flexural modulus of biocomposites to 3.7 GPa. Flexural strength was not drastically impacted since values ranged around 70 –85 MPa. It was also observed an increase of biocomposites hardness with Kraft lignin rather than corn cob. DSC thermograms did not reveal any influence of the by-products on glass transition temperature of PLA.The present product is a thermoplastic material, entirely bio-based, biodegradable, and it was obtained from simple formulation without any use of harmful solvent.

AB - The goal of this exploratory work was to evaluate the influence of two industrial by-products - Kraft lignin from forestry sector, and corn cobs from the French agricultural sector - on biocomposites properties. Several blends involving Kraft lignin and/or corn cob in a PLA matrix were compounded within Valagro Recherche French company. By incorporating 20 % (w/w) of by-products into a PLA matrix, the price of the developed biocomposites is expected to be lower than a PLA-made product. Granulates were injected for further characterizations such as flexural mechanical properties, hardness, thermal properties, surface tension, FT-IR spectroscopy, and density. Incorporation of corn cob and Kraft lignin increased flexural modulus of biocomposites to 3.7 GPa. Flexural strength was not drastically impacted since values ranged around 70 –85 MPa. It was also observed an increase of biocomposites hardness with Kraft lignin rather than corn cob. DSC thermograms did not reveal any influence of the by-products on glass transition temperature of PLA.The present product is a thermoplastic material, entirely bio-based, biodegradable, and it was obtained from simple formulation without any use of harmful solvent.

UR - https://biocompositescc.com/

M3 - Conference abstract in proceedings

BT - Proceedings of the Biocomposites Conference Cologne (BCC) 2019

T2 - 8th Biocomposites Conference

Y2 - 14 November 2019 through 15 November 2019

ER -

Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens

Abstract

Conference

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