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Brief overview on bio-based adhesives and sealants
University of Coimbra, Coimbra, Portugal.
University of Coimbra, Coimbra, Portugal.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. University of Algarve, Faro, Portugal. (FSCN)
University of Coimbra, Coimbra, Portugal.
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2019 (English)In: Polymers, ISSN 2073-4360, E-ISSN 2073-4360, Vol. 11, no 10, article id 1685Article in journal (Refereed) Published
Abstract [en]

Adhesives and sealants (AS) are materials with excellent properties, versatility, and simple curing mechanisms, being widely used in different areas ranging from the construction to the medical sectors. Due to the fast-growing demand for petroleum-based products and the consequent negative environmental impact, there is an increasing need to develop novel and more sustainable sources to obtain raw materials (monomers). This reality is particularly relevant for AS industries, which are generally dependent on non-sustainable fossil raw materials. In this respect, biopolymers, such as cellulose, starch, lignin, or proteins, emerge as important alternatives. Nevertheless, substantial improvements and developments are still required in order to simplify the synthetic routes, as well as to improve the biopolymer stability and performance of these new bio-based AS formulations. This environmentally friendly strategy will hopefully lead to the future partial or even total replacement of non-renewable petroleum-based feedstock. In this brief overview, the general features of typical AS are reviewed and critically discussed regarding their drawbacks and advantages. Moreover, the challenges faced by novel and more ecological alternatives, in particular lignocellulose-based solutions, are highlighted. 

Place, publisher, year, edition, pages
2019. Vol. 11, no 10, article id 1685
Keywords [en]
Adhesion, Adhesives, Cellulose, Lignin, Sealants, Silicone
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-37706DOI: 10.3390/polym11101685Scopus ID: 2-s2.0-85074462579OAI: oai:DiVA.org:miun-37706DiVA, id: diva2:1370866
Available from: 2019-11-18 Created: 2019-11-18 Last updated: 2019-11-18Bibliographically approved

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