Acetylation of lignin containing microfibrillated cellulose and its reinforcing effect for polylactic acid

Ferhat Yetiş; Xuqing Liu; William W. Sampson; R. Hugh Gong

doi:10.1016/j.eurpolymj.2020.109803

Acetylation of lignin containing microfibrillated cellulose and its reinforcing effect for polylactic acid

Ferhat Yetiş, Xuqing Liu, William W. Sampson, R. Hugh Gong

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Abstract

High hemicellulose and lignin content MFC (MFLC) was isolated from chemithermomechanical pulp (CTMP), and surface acetylation used to significantly decrease its polarity. This modification of MFLC provided good dispersibility in PLA when used for biocomposites fabrication via a solvent casting method. MFLC exhibited higher modification efficiency compared to lignin-free MFC. Base-catalysed surface acetylation unchanged the crystalline structure of MFLC. Detection of the hydrogen bond between acetylated MFLC (AcMFLC) and PLA confirmed its role in improvement of the mechanical performance, thermal properties and crystallinity of the biocomposite with Ac-MFLC acting as an effective reinforcing and nucleating agent. The approach confirms the suitability of surface functionalization of MFLC for fabrication of biocomposites for a wide range of applications such as packaging and biomedical products.

Original language	English
Pages (from-to)	109803
Journal	European Polymer Journal
Volume	134
Early online date	26 May 2020
DOIs	https://doi.org/10.1016/j.eurpolymj.2020.109803
Publication status	Published - 5 Jul 2020

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https://linkinghub.elsevier.com/retrieve/pii/S0014305720308740

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title = "Acetylation of lignin containing microfibrillated cellulose and its reinforcing effect for polylactic acid",

abstract = "High hemicellulose and lignin content MFC (MFLC) was isolated from chemithermomechanical pulp (CTMP), and surface acetylation used to significantly decrease its polarity. This modification of MFLC provided good dispersibility in PLA when used for biocomposites fabrication via a solvent casting method. MFLC exhibited higher modification efficiency compared to lignin-free MFC. Base-catalysed surface acetylation unchanged the crystalline structure of MFLC. Detection of the hydrogen bond between acetylated MFLC (AcMFLC) and PLA confirmed its role in improvement of the mechanical performance, thermal properties and crystallinity of the biocomposite with Ac-MFLC acting as an effective reinforcing and nucleating agent. The approach confirms the suitability of surface functionalization of MFLC for fabrication of biocomposites for a wide range of applications such as packaging and biomedical products. ",

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T1 - Acetylation of lignin containing microfibrillated cellulose and its reinforcing effect for polylactic acid

AU - Yetiş, Ferhat

AU - Liu, Xuqing

AU - Sampson, William W.

AU - Gong, R. Hugh

PY - 2020/7/5

Y1 - 2020/7/5

N2 - High hemicellulose and lignin content MFC (MFLC) was isolated from chemithermomechanical pulp (CTMP), and surface acetylation used to significantly decrease its polarity. This modification of MFLC provided good dispersibility in PLA when used for biocomposites fabrication via a solvent casting method. MFLC exhibited higher modification efficiency compared to lignin-free MFC. Base-catalysed surface acetylation unchanged the crystalline structure of MFLC. Detection of the hydrogen bond between acetylated MFLC (AcMFLC) and PLA confirmed its role in improvement of the mechanical performance, thermal properties and crystallinity of the biocomposite with Ac-MFLC acting as an effective reinforcing and nucleating agent. The approach confirms the suitability of surface functionalization of MFLC for fabrication of biocomposites for a wide range of applications such as packaging and biomedical products.

AB - High hemicellulose and lignin content MFC (MFLC) was isolated from chemithermomechanical pulp (CTMP), and surface acetylation used to significantly decrease its polarity. This modification of MFLC provided good dispersibility in PLA when used for biocomposites fabrication via a solvent casting method. MFLC exhibited higher modification efficiency compared to lignin-free MFC. Base-catalysed surface acetylation unchanged the crystalline structure of MFLC. Detection of the hydrogen bond between acetylated MFLC (AcMFLC) and PLA confirmed its role in improvement of the mechanical performance, thermal properties and crystallinity of the biocomposite with Ac-MFLC acting as an effective reinforcing and nucleating agent. The approach confirms the suitability of surface functionalization of MFLC for fabrication of biocomposites for a wide range of applications such as packaging and biomedical products.

U2 - 10.1016/j.eurpolymj.2020.109803

DO - 10.1016/j.eurpolymj.2020.109803

M3 - Article

SN - 0014-3057

VL - 134

SP - 109803

JO - European Polymer Journal

JF - European Polymer Journal

ER -

Acetylation of lignin containing microfibrillated cellulose and its reinforcing effect for polylactic acid

Abstract

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