bioplastics Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/bioplastics-en/ Eine weitere WordPress-Website Wed, 05 Jul 2023 06:01:56 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://oneearth-oneocean.com/wp-content/uploads/2022/08/cropped-oeoo-logo-unterzeile-blau-1-32x32.jpg bioplastics Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/bioplastics-en/ 32 32 Environmental performance of bio-based and biodegradable plastics: the road ahead https://oneearth-oneocean.com/en/international-marine-litter-database-en-2/2020/environmental-performance-of-bio-based-and-biodegradable-plastics-the-road-ahead/ Mon, 24 Aug 2020 10:24:14 +0000 https://oneearth-oneocean.com/2020/08/24/environmental-performance-of-bio-based-and-biodegradable-plastics-the-road-ahead/ Scott Lambert and Martin Wagner Environmental performance of bio-based and biodegradable plastics: the road ahead Chem. Soc. Rev., 2017, Advance Article Abstract Future plastic materials will be very different from those that are used today. The increasing importance of sustainability promotes the development of bio-based and biodegradable polymers, sometimes misleadingly referred to as ‘bioplastics’. Because both terms imply “green” sources and “clean” removal, this paper aims at critically discussing the sometimes-conflicting terminology as well as renewable sources with a special focus on the degradation of these polymers innatural environments. With regard to the former we review innovations in feedstock development (e.g. microalgae and food wastes). In terms of the latter, we highlight the effects that polymer structure, additives, and environmental variables have on plastic biodegradability. We argue that the ‘biodegradable’ end-product does not necessarily degrade once emitted to the environment because chemical additives used to make them fit for purpose will increase the longevity. In the future, this trend may continue as the plastics industry also is expected to be a major user of nanocomposites. Overall, there is a need to assess the performance of polymer innovations in terms of their biodegradability especially under realistic waste management and environmental conditions, to avoid the unwanted release of plastic degradation products in receiving environments. http://dx.doi.org/10.1039/C7CS00149E

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]]> Scott Lambert and Martin Wagner

Environmental performance of bio-based and biodegradable plastics: the road ahead

Chem. Soc. Rev., 2017, Advance Article

Abstract

Future plastic materials will be very different from those that are used today. The increasing importance of sustainability promotes the
development of bio-based and biodegradable polymers, sometimes misleadingly referred to as ‘bioplastics’. Because both terms imply
“green” sources and “clean” removal, this paper aims at critically discussing the sometimes-conflicting terminology as well as renewable
sources with a special focus on the degradation of these polymers innatural environments.

With regard to the former we review innovations in feedstock development (e.g. microalgae and food wastes). In terms of the
latter, we highlight the effects that polymer structure, additives, and environmental variables have on plastic biodegradability. We argue that
the ‘biodegradable’ end-product does not necessarily degrade once emitted to the environment because chemical additives used to make them fit for purpose will increase the longevity.

In the future, this trend may continue as the plastics industry also is expected to be a major user of nanocomposites. Overall, there is a need to assess the performance of polymer innovations in terms of their biodegradability especially under realistic waste management and environmental conditions, to avoid the unwanted release of plastic degradation products in receiving environments.

http://dx.doi.org/10.1039/C7CS00149E

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]]> Direct Transformation of Edible Vegetable Waste into Bioplastics Macromolecules https://oneearth-oneocean.com/en/research-en/2014/direct-transformation-of-edible-vegetable-waste-into-bioplastics-macromolecules/ https://oneearth-oneocean.com/en/research-en/2014/direct-transformation-of-edible-vegetable-waste-into-bioplastics-macromolecules/#respond Wed, 17 Sep 2014 20:05:45 +0000 https://oneearth-oneocean.com/2014/09/17/direct-transformation-of-edible-vegetable-waste-into-bioplastics-macromolecules/ http://dx.doi.org/10.1021/ma5008557 Ilker S. Bayer, Susana Guzman-Puyol, José Alejandro Heredia-Guerrero, Luca Ceseracciu, Francesca Pignatelli, Roberta Ruffilli, Roberto Cingolani, and Athanassia Athanassiou Direct Transformation of Edible Vegetable Waste into Bioplastics Macromolecules, 2014, 47 (15), pp 5135?5143 DOI: 10.1021/ma5008557 Abstract Bioplastics with a wide range of mechanical properties were directly obtained from industrially processed edible vegetable and cereal wastes. As model systems, we present bioplastics synthesized from wastes of parsley and spinach stems, rice hulls, and cocoa pod husks by digesting in trifluoroacetic acid (TFA), casting, and evaporation. In this way, amorphous cellulose-based plastics are formed. Moreover, many other natural elements present in these plants are carried over into the bioplastics rendering them with many exceptional thermo-physical properties. Here, we show that, due to their broad compatibility with cellulose, amorphous cellulose can be naturally plasticized with these bioplastics by simply mixing during processing. Comparison of their mechanical properties with that of various petroleum based synthetic polymers indicates that these bioplastics have equivalent mechanical properties to the nondegrading ones. This opens up possibilities for replacing some of the nondegrading polymers with the present bioplastics obtained from agro-waste.

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]]> http://dx.doi.org/10.1021/ma5008557 Ilker S. Bayer, Susana Guzman-Puyol, José Alejandro Heredia-Guerrero, Luca Ceseracciu, Francesca Pignatelli, Roberta Ruffilli, Roberto Cingolani, and Athanassia Athanassiou Direct Transformation of Edible Vegetable Waste into Bioplastics Macromolecules, 2014, 47 (15), pp 5135?5143 DOI: 10.1021/ma5008557 Abstract Bioplastics with a wide range of mechanical properties were directly obtained from industrially processed edible vegetable and cereal wastes. As model systems, we present bioplastics synthesized from wastes of parsley and spinach stems, rice hulls, and cocoa pod husks by digesting in trifluoroacetic acid (TFA), casting, and evaporation. In this way, amorphous cellulose-based plastics are formed. Moreover, many other natural elements present in these plants are carried over into the bioplastics rendering them with many exceptional thermo-physical properties. Here, we show that, due to their broad compatibility with cellulose, amorphous cellulose can be naturally plasticized with these bioplastics by simply mixing during processing. Comparison of their mechanical properties with that of various petroleum based synthetic polymers indicates that these bioplastics have equivalent mechanical properties to the nondegrading ones. This opens up possibilities for replacing some of the nondegrading polymers with the present bioplastics obtained from agro-waste.

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