Crosslinked starch-coated cellulosic papers as alternative food-packaging materials.

Autor:	Semlali Aouragh Hassani FZ; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma., Salim MH; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma., Kassab Z; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma., Sehaqui H; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma., Ablouh EH; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma., Bouhfid R; Composites and Nanocomposites Center (CNC), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed El Jazouli, Madinat El Irfane 10100 Rabat Morocco., Qaiss AEK; Composites and Nanocomposites Center (CNC), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed El Jazouli, Madinat El Irfane 10100 Rabat Morocco., El Achaby M; Materials Science, Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P) Lot 660 - Hay Moulay Rachid Benguerir 43150 Morocco fatimazahra.semlali@um6p.ma mounir.elachaby@um6p.ma.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2022 Mar 17; Vol. 12 (14), pp. 8536-8546. Date of Electronic Publication: 2022 Mar 17 (Print Publication: 2022).
DOI:	10.1039/d2ra00536k
Abstrakt:	In general, during the papermaking process or the production of cellulosic materials for food-packaging applications, lignin and other amorphous components are usually removed via the pulping and multilevel bleaching process to entirely separate them from the fiber. The aim of this work was to study the positive effect that can impart the residual lignin remaining in the alkali-treated fiber surface over bleached fibers to produce an alternative food-packaging cellulosic paper. Herein, cellulosic papers based on alkali-treated and bleached fibers obtained from the Alfa plant were successfully prepared using a compression process. The as-obtained papers were coated by crosslinked starch using a solvent-casting method to improve their mechanical and surface properties. The morphological and contact angle results showed that the residual lignin in the alkali-treated cellulosic papers strongly increased the interfacial adhesion by making the structure denser and more compact, resulting in an improved water resistance property over the bleached ones. On the other hand, it also promoted char formation, slowing down the burning process, resulting in better flame resistance. Additionally, the mechanical properties demonstrated that the presence of lignin contributed to the material rigidity improvement without compromising its flexibility (folding endurance). The as-developed cellulosic papers coated with crosslinked starch could be used for the production of high-quality materials for food-packaging applications using conventional industrial processes. Competing Interests: The authors declare that they have no known competing financial interests. The manuscript has not been published elsewhere and that it has not been submitted simultaneously for publication elsewhere. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu