Designing Biobased Recyclable Polymers for Plastics

Hatti‐Kaul, Rajni; Nilsson, Lars J; Zhang, Baozhong; Rehnberg, Nicola; Lundmark, Stefan

doi:10.1016/j.tibtech.2019.04.011

Cited by 207 publications

(186 citation statements)

References 143 publications

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“…This can mainly be attributed to competition with inexpensive plastics made from fossil fuel feedstock at low costs. The supply of biomass raw materials and recycling routes poses additional challenges for biodegradable plastic materials [15,16].…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

et al. 2020

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In the current work the physicochemical features of poly(vinyl alcohol) (PVOH) biofilms, enriched with eco-friendly polyols and with carotenoid-rich extracts, were investigated. The polyols, such as glycerol (Gly), 1,3-propanediol (PDO), and 2,3-butanediol (BDO) were used as plasticizers and the tomato-based pigments (TP) as coloring agents. The outcomes showed that β-carotene was the major carotenoid in the TP (1.605 mg β-carotene/100 DW), which imprinted the orange color to the biofilms. The flow behavior indicated that with the increase of shear rate the viscosity of biofilm solutions also increased until 50 s−1, reaching values at 37 °C of approximately 9 ± 0.5 mPa·s for PVOH, and for PVOH+TP, 14 ± 0.5 mPa·s in combination with Gly, PDO, and BDO. The weight, thickness, and density of samples increased with the addition of polyols and TP. Biofilms with TP had lower transparency values compared with control biofilms (without vegetal pigments). The presence of BDO, especially, but also of PDO and glycerol in biofilms created strong bonds within the PVOH matrix by increasing their mechanical resistance. The novelty of the present approach relies on the replacement of synthetic colorants with natural pigments derived from agro-industrial by-products, and the use of a combination of biodegradable polymers and polyols, as an integrated solution for packaging application in the bioplastic industry.

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Section: Introductionmentioning

confidence: 99%

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

et al. 2020

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“…2,3 In response to this there has been a resurgence into research into bio-derived materials including poly(lactic acid) (PLA) and poly (ethylene furanoate) (PEF) among others. [4][5][6][7][8][9][10][11][12] (B) The second issue relates to the extended lifetime of plastics and end-of-life mismanagement causing leaking and persistence in the environment leading to land and sea pollution. [13][14][15][16] While biodegradable materials are being sought to reduce this issue, 17 compostable materials are not compatible with the circular economy as immediate value is lost from the life-cycle and some plastic applications require robust properties.…”

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confidence: 99%

Organocatalysis for versatile polymer degradation

et al. 2020

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“…First, there is a need for proper Despite the aforementioned potential benefits of biodegradable plastics, a lot of groundwork is required for the benefits of biodegradable plastics to be realized. First, there is a need for proper infrastructure for their sorting, collection, recycling, and composting [258]. The high cost of setting up end of life options for the biodegradable plastics is also reportedly restricting the growth in demand for biodegradable plastics [73].…”

Section: Bio-based Biodegradable Plastics Analysismentioning

confidence: 99%

“…Aside from the availability of infrastructure, the continued growth of the biodegradable plastics market will depend on the economic sustainability of the manufacturing process, which can improve with an increase in demand [76], availability of raw materials [258] that do not compromise food security in contradiction to the United Nations' Sustainable Development Goal 2 of "Zero Hunger" or require large tracts of land to meet demand, and crude oil prices [258], because when they are low, manufacturing costs for fossil-based plastics will be competitive over biodegradable plastics manufacture. Competition with food is not expected, because only 5% of the harvested biomass will be consumed at the peak of bioplastics production.…”

Section: What Will Drive Growth In the Industry?mentioning

confidence: 99%

Integrated and Consolidated Review of Plastic Waste Management and Bio-Based Biodegradable Plastics: Challenges and Opportunities

et al. 2020

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Cumulative plastic production worldwide skyrocketed from about 2 million tonnes in 1950 to 8.3 billion tonnes in 2015, with 6.3 billion tonnes (76%) ending up as waste. Of that waste, 79% is either in landfills or the environment. The purpose of the review is to establish the current global status quo in the plastics industry and assess the sustainability of some bio-based biodegradable plastics. This integrative and consolidated review thus builds on previous studies that have focused either on one or a few of the aspects considered in this paper. Three broad items to strongly consider are: Biodegradable plastics and other alternatives are not always environmentally superior to fossil-based plastics; less investment has been made in plastic waste management than in plastics production; and there is no single solution to plastic waste management. Some strategies to push for include: increasing recycling rates, reclaiming plastic waste from the environment, and bans or using alternatives, which can lessen the negative impacts of fossil-based plastics. However, each one has its own challenges, and country-specific scientific evidence is necessary to justify any suggested solutions. In conclusion, governments from all countries and stakeholders should work to strengthen waste management infrastructure in low- and middle-income countries while extended producer responsibility (EPR) and deposit refund schemes (DPRs) are important add-ons to consider in plastic waste management, as they have been found to be effective in Australia, France, Germany, and Ecuador.

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Designing Biobased Recyclable Polymers for Plastics

Cited by 207 publications

References 143 publications

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

Poly(vinyl alcohol)-Based Biofilms Plasticized with Polyols and Colored with Pigments Extracted from Tomato By-Products

Organocatalysis for versatile polymer degradation

Integrated and Consolidated Review of Plastic Waste Management and Bio-Based Biodegradable Plastics: Challenges and Opportunities

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