TY - JOUR
T1 - Enzymatic Degradation and Pilot-Scale Composting of Cellulose-Based Films with Different Chemical Structures
AU - Leppänen, Ilona
AU - Vikman, Minna
AU - Harlin, Ali
AU - Orelma, Hannes
N1 - Funding Information:
Open access funding provided by Technical Research Centre of Finland (VTT). This research was internally funded by VTT with a government grant and formed part of the Academy of Finland?s Flagship Program under Project Nos. 318890 and 318891 (Competence Centre for Materials Bioeconomy, FinnCERES). The authors wish to thank Niina Torttila and Mirva Pyrh?nen for skilful assistance in the laboratory, Christiane Laine, Pia Willberg-Keyril?inen, Tero Malm and Vesa Kunnari for providing film materials and Jaakko Pere for assistance with the enzymatic degradation studies.
Funding Information:
Open access funding provided by Technical Research Centre of Finland (VTT). This research was internally funded by VTT with a government grant and formed part of the Academy of Finland’s Flagship Program under Project Nos. 318890 and 318891 (Competence Centre for Materials Bioeconomy, FinnCERES). The authors wish to thank Niina Torttila and Mirva Pyrhönen for skilful assistance in the laboratory, Christiane Laine, Pia Willberg-Keyriläinen, Tero Malm and Vesa Kunnari for providing film materials and Jaakko Pere for assistance with the enzymatic degradation studies.
Publisher Copyright:
© 2019, The Author(s).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/2/1
Y1 - 2020/2/1
N2 - In this study, we investigated the enzymatical degradability and pilot-scale composting of 14 cellulose-based materials. The materials analyzed here were cellulose regenerated from ionic liquid (EMIM[OAc]), carboxymethyl cellulose (CMC) crosslinked by aluminum salt (Al-salt), methyl cellulose, cellulose acetate, butylated hemicellulose: DS: 1, DS: 0.4, and DS: 0.2, cellophane, wet strength paper, nanocellulose, paper partially dissolved by IL, cellulose carbamate, cellulose palmitate, and cellulose octanoate. The aim of the study was to show how chemical substituting and the substituent itself influence the biodegradability of cellulose materials. The enzymatic degradation and pilot-scale composting of these films shows the correlation between the hydrolysis rate and degree of substitution. The enzymatic hydrolysis of cellulose-based films decreased exponentially as the degree of substitution increased. Modifying cellulose to the extent that it gains the strength needed to obtain good mechanical properties, while retaining its natural biodegradability is an important factor when preparing alternatives for plastic films.
AB - In this study, we investigated the enzymatical degradability and pilot-scale composting of 14 cellulose-based materials. The materials analyzed here were cellulose regenerated from ionic liquid (EMIM[OAc]), carboxymethyl cellulose (CMC) crosslinked by aluminum salt (Al-salt), methyl cellulose, cellulose acetate, butylated hemicellulose: DS: 1, DS: 0.4, and DS: 0.2, cellophane, wet strength paper, nanocellulose, paper partially dissolved by IL, cellulose carbamate, cellulose palmitate, and cellulose octanoate. The aim of the study was to show how chemical substituting and the substituent itself influence the biodegradability of cellulose materials. The enzymatic degradation and pilot-scale composting of these films shows the correlation between the hydrolysis rate and degree of substitution. The enzymatic hydrolysis of cellulose-based films decreased exponentially as the degree of substitution increased. Modifying cellulose to the extent that it gains the strength needed to obtain good mechanical properties, while retaining its natural biodegradability is an important factor when preparing alternatives for plastic films.
UR - http://www.scopus.com/inward/record.url?scp=85076206978&partnerID=8YFLogxK
U2 - 10.1007/s10924-019-01621-w
DO - 10.1007/s10924-019-01621-w
M3 - Article
VL - 28
SP - 458
EP - 470
JO - Journal of Polymers and the Environment
JF - Journal of Polymers and the Environment
SN - 1566-2543
IS - 2
ER -