Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging

Nanofibrillated cellulose (NFC) was systematically tailored by ultrasonic-assisted esterification with lactic acid at different amplitudes and times, which led to modified NFC (mNFC) with different degrees of substitution (DS), between 0.21 and 0.55, as confirmed by titration, FTIR, and C13 NMR. A p...

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Autores principales:	Supattra Klayya, Nattaya Tawichai, Uraiwan Intatha, Han Zhang, Emiliano Bilotti, Nattakan Soykeabkaew
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	nanofibrillated cellulose chemical modification sonication degree of substitution molded pulp packaging barrier properties water resistance dewatering Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/b2a921a034754641bc2e9d5abeb09e2c
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spelling	oai:doaj.org-article:b2a921a034754641bc2e9d5abeb09e2c2021-12-02T16:25:31ZTailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging2055-033210.1080/20550324.2021.1949517https://doaj.org/article/b2a921a034754641bc2e9d5abeb09e2c2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2021.1949517https://doaj.org/toc/2055-0332Nanofibrillated cellulose (NFC) was systematically tailored by ultrasonic-assisted esterification with lactic acid at different amplitudes and times, which led to modified NFC (mNFC) with different degrees of substitution (DS), between 0.21 and 0.55, as confirmed by titration, FTIR, and C13 NMR. A partial fragmentation and decrease in crystallinity of mNFC were revealed by TEM and XRD. To form molded pulp sheets, 5 wt% mNFC was added into a bagasse (BG) pulp slurry, then partially dewatered before hot-pressed. mNFC worked effectively as self-retention aid, partly solving the issue of drainage during sheet forming as commonly observed from unmodified NFC. The BG/mNFC (DS 0.55) sheet exhibited an enhancement in tensile properties. Water resistance and barrier performance of the current sheets were also evidently increased. The results suggested that the higher DS on mNFC can improve water resistance and mechanical properties, simultaneously overcoming drainage challenges in processing of molded pulp products.Supattra KlayyaNattaya TawichaiUraiwan IntathaHan ZhangEmiliano BilottiNattakan SoykeabkaewTaylor & Francis Grouparticlenanofibrillated cellulosechemical modificationsonicationdegree of substitutionmolded pulppackagingbarrier propertieswater resistancedewateringMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 7, Iss 1, Pp 109-122 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanofibrillated cellulose chemical modification sonication degree of substitution molded pulp packaging barrier properties water resistance dewatering Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
spellingShingle	nanofibrillated cellulose chemical modification sonication degree of substitution molded pulp packaging barrier properties water resistance dewatering Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Supattra Klayya Nattaya Tawichai Uraiwan Intatha Han Zhang Emiliano Bilotti Nattakan Soykeabkaew Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
description	Nanofibrillated cellulose (NFC) was systematically tailored by ultrasonic-assisted esterification with lactic acid at different amplitudes and times, which led to modified NFC (mNFC) with different degrees of substitution (DS), between 0.21 and 0.55, as confirmed by titration, FTIR, and C13 NMR. A partial fragmentation and decrease in crystallinity of mNFC were revealed by TEM and XRD. To form molded pulp sheets, 5 wt% mNFC was added into a bagasse (BG) pulp slurry, then partially dewatered before hot-pressed. mNFC worked effectively as self-retention aid, partly solving the issue of drainage during sheet forming as commonly observed from unmodified NFC. The BG/mNFC (DS 0.55) sheet exhibited an enhancement in tensile properties. Water resistance and barrier performance of the current sheets were also evidently increased. The results suggested that the higher DS on mNFC can improve water resistance and mechanical properties, simultaneously overcoming drainage challenges in processing of molded pulp products.
format	article
author	Supattra Klayya Nattaya Tawichai Uraiwan Intatha Han Zhang Emiliano Bilotti Nattakan Soykeabkaew
author_facet	Supattra Klayya Nattaya Tawichai Uraiwan Intatha Han Zhang Emiliano Bilotti Nattakan Soykeabkaew
author_sort	Supattra Klayya
title	Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
title_short	Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
title_full	Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
title_fullStr	Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
title_full_unstemmed	Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
title_sort	tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/b2a921a034754641bc2e9d5abeb09e2c
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_version_	1718384074861576192

Tailoring nanofibrillated cellulose through sonication and its potential use in molded pulp packaging

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