A Review to Guide Eco-Design of Reactive Polymer-Based Materials

Delamarche, Emma; Massardier, V.; Bayard, Rémy; Santos, Edson dos

doi:10.1007/978-3-030-52052-6_8

“…Research has advanced toward the development of new eco-friendly materials using “green” technology, targeting materials that favor a closed life cycle, such as biopolymers and biodegradable polymers. Biopolymers are produced from raw materials derived from renewable sources, such as: cellulose, sugar cane, corn and others [ 4 , 5 , 6 ]. On the other hand, biodegradable polymers are those that undergo degradation from the action of microorganisms in environments that are considered bioactive [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Tailoring Poly(lactic acid) (PLA) Properties: Effect of the Impact Modifiers EE-g-GMA and POE-g-GMA

Filho

¹

,

Luna

²

,

Siqueira

³

et al. 2021

View full text Add to dashboard Cite

Poly(ethylene-octene) grafted with glycidyl methacrylate (POE-g-GMA) and ethylene elastomeric grafted with glycidyl methacrylate (EE-g-GMA) were used as impact modifiers, aiming for tailoring poly(lactic acid) (PLA) properties. POE-g-GMA and EE-g-GMA was used in a proportion of 5; 7.5 and 10%, considering a good balance of properties for PLA. The PLA/POE-g-GMA and PLA/EE-g-GMA blends were processed in a twin-screw extruder and injection molded. The FTIR spectra indicated interactions between the PLA and the modifiers. The 10% addition of EE-g-GMA and POE-g-GMA promoted significant increases in impact strength, with gains of 108% and 140%, respectively. These acted as heterogeneous nucleating agents in the PLA matrix, generating a higher crystallinity degree for the blends. This impacted to keep the thermal deflection temperature (HDT) and Shore D hardness at the same level as PLA. By thermogravimetry (TG), the blends showed increased thermal stability, suggesting a stabilizing effect of the modifiers POE-g-GMA and EE-g-GMA on the PLA matrix. Scanning electron microscopy (SEM) showed dispersed POE-g-GMA and EE-g-GMA particles, as well as the presence of ligand reinforcing the systems interaction. The PLA properties can be tailored and improved by adding small concentrations of POE-g-GMA and EE-g-GMA. In light of this, new environmentally friendly and semi-biodegradable materials can be manufactured for application in the packaging industry.

show abstract

“…

Editorial on the Research Topic Alternative building blocks and new recycling routes for polymers: Challenges for circular economy and triggers for innovations Circularity often seems to be synonym of recycling and valorization of waste (Massardier-Nageotte, 2014;Massardier and Quitadamo, 2018), but identifying alternative building blocks routes for the eco-design of polymer materials (Delamarche et al, 2020a) made from biomass can be a relevant challenge. The present Research Topic gives a few answers relative to valorization of PLA (polylactic acid) based materials through (bio)degradation as well as to potential alternative routes to produce building blocks for materials, compatible with mechanical and chemical recycling, considering not only technological but also socio-economical points of view.Recent families of polymers, such as (bio)degradable PLA, able to be processed again in a perspective of mechanical recycling, could satisfy criteria of circularity from a technological point of view (Cosate de Andrade et al, 2016;Payne et al, 2019).

…”

mentioning

confidence: 99%

Editorial: Alternative building blocks and new recycling routes for polymers: Challenges for circular economy and triggers for innovations

Massardier

¹

,

Belhaneche‐Bensemra²,

Lazaric³

2023

View full text Add to dashboard Cite

Editorial on the Research Topic Alternative building blocks and new recycling routes for polymers: Challenges for circular economy and triggers for innovations Circularity often seems to be synonym of recycling and valorization of waste (Massardier-Nageotte, 2014;Massardier and Quitadamo, 2018), but identifying alternative building blocks routes for the eco-design of polymer materials (Delamarche et al., 2020a) made from biomass can be a relevant challenge. The present Research Topic gives a few answers relative to valorization of PLA (polylactic acid) based materials through (bio)degradation as well as to potential alternative routes to produce building blocks for materials, compatible with mechanical and chemical recycling, considering not only technological but also socio-economical points of view.Recent families of polymers, such as (bio)degradable PLA, able to be processed again in a perspective of mechanical recycling, could satisfy criteria of circularity from a technological point of view (Cosate de Andrade et al., 2016;Payne et al., 2019). Unfortunately, PLA still corresponds only to a few percent of the polymer world production, which compromises the development of recycling chains for it, when considering socio-economical aspects. The new trajectory for PLA is a niche dedicated to specific needs and applications (European Bioplastics, 2021). Main challenges reside both in the improvement of technological innovations and their organizational adaptation in the current socio technological system. This novelty is also perceived as a disturbing element for recyclers and as a new deal for consumers who do not know in which type of bin to put these "items" (Ansink et al., 2022).In this context, why not elaborating conventional polymers highly recycled in existing chains, such as PET (Polyethylene terephthalate), from building blocks obtained by alternative routes? In the present Research Topic, the short Sandei et al., that includes socio-economical points of view, potentials and limits, deals with this question. Nowadays, PET is synthesized from ethylene glycol and terephthalic acid, which can represent a double

show abstract