A strong, biodegradable and recyclable lignocellulosic bioplastic

Xia, Qinqin; Chen, Chaoji; Yao, Yonggang; Li, Jianguo; He, Shuaiming; Zhou, Yubing; Li, Teng; Pan, Xuejun; Yao, Yuan; Hu, Liangbing

doi:10.1038/s41893-021-00702-w

Cited by 440 publications

(238 citation statements)

References 38 publications

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“…Petrochemical plastics, which are cheap, convenient, and durable materials, have been widely used in various fields, such as toys, electronics, furniture, construction, packaging, and wrapping [ 1 , 2 , 3 , 4 ]. However, most petrochemical plastics are incinerated or landfilled at the end of their service life.…”

Section: Introductionmentioning

confidence: 99%

“…Renewable and biodegradable biomass resources have attracted considerable attention in recent years [ 4 , 7 , 8 , 9 , 10 ] and will develop rapidly with the goal of carbon neutrality set worldwide to address the global catastrophic climate crisis [ 11 , 12 , 13 ]. Generally, plants biomass resource is a good choice for the production of renewable, biodegradable, and environmentally friendly materials [ 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…As one of the three major components in plants biomass resources, cellulose is ubiquitous in nature and has been widely converted into various cellulose derivatives and cellulose materials [ 7 , 8 , 18 ], showing great potential in fluorescent smart materials [ 19 ], food packaging [ 18 ], 3D printing technology [ 8 ], triboelectric nanogenerators [ 20 ], etc. It is worth noting that regenerated cellulose materials are attractive candidates to replace traditional petrochemical plastics [ 4 ]. Nevertheless, the cotton linter (12–15 %) and wood pulps (85–88%) are still the major components of cellulose sources in the industry [ 21 ], significantly limiting the application and development of cellulose materials, not to mention replacing the nonbiodegradable petrochemical plastics.…”

Section: Introductionmentioning

confidence: 99%

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Cellulose-Based Films with Ultraviolet Shielding Performance Prepared Directly from Waste Corrugated Pulp

Xia

Zhou

et al. 2021

Polymers

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As the most important paper packaging materials, corrugated cartons with a tremendous amount of production demonstrate several advantages and have been widely used in daily life. However, waste corrugated cartons (WCCs) are usually recycled and reused to produce new corrugated cartons, and their properties are decreased dramatically after several cycles. Therefore, recycling and converting WCCs into cellulose-based film with high value is attractive and significant. Herein, without any pretreatment, the waste old corrugated cartons were directly dissolved in ionic liquid 1-allyl-3-methylimidazolium chloride, and semitransparent cellulose-based films were successfully fabricated. It was indicated that cellulose-based films displayed better UV-shielding property and hydrophobicity than traditional cellulose films. Interestingly, the cellulose-based films regenerated from deionized water displayed higher tensile strength, elongation at break, and toughness. Their tensile strength could reach 23.16 MPa, exhibiting enormous superiority as wrapping and packaging materials to replace the petrochemical polyethylene membrane (8.95 MPa). Consequently, these renewable, biodegradable, and high-valued cellulose-based films were successfully fabricated to simultaneously realize the valorization of old corrugated cartons and supplement the petrochemical plastics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cellulose-Based Films with Ultraviolet Shielding Performance Prepared Directly from Waste Corrugated Pulp

Xia

Zhou

et al. 2021

Polymers

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“…These are usually used in shopping bags, compostable waste collection bags, trays, and punnets for fruit, meat, and vegetables. While maximum plastics are made of petrochemicals, bioplastics are made drastically produced from renewable plant substances such as cellulose and starch [6]. Bioplastics are used in medical applications that include implants such as screws, pins, or plates, as well as material for pills and capsules.…”

Section: Classification Of Plastics and Recycling Processmentioning

confidence: 99%

Efficient Plastic Recycling and Remolding Circular Economy Using the Technology of Trust–Blockchain

et al. 2021

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Global plastic waste is increasing rapidly. In general, densely populated regions generate tons of plastic waste daily, which is sometimes disposed of on land or diverged to sea. Most of the plastics created in the form of waste have complex degradation behavior and are non-biodegradable by nature. These remain intact in the environment for a long time span and potentially originate complications within terrestrial and marine life ecosystems. The strategic management of plastic waste and recycling can preserve environmental species and associated costs. The key contribution in this work focuses on ongoing efforts to utilize plastic waste by introducing blockchain during plastic waste recycling. It is proposed that the efficiency of plastic recycling can be improved enormously by using the blockchain phenomenon. Automation for the segregation and collection of plastic waste can effectively establish a globally recognizable tool using blockchain-based applications. Collection and sorting of plastic recycling are feasible by keeping track of plastic with unique codes or digital badges throughout the supply chain. This approach can support a collaborative digital consortium for efficient plastic waste management, which can bring together multiple stakeholders, plastic manufacturers, government entities, retailers, suppliers, waste collectors, and recyclers.

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“…Dynamic covalent polymer networks (DCPNs) (12,13), which possess the benefits of thermosets yet retain re-processability resembling thermoplastics, have been widely explored in synthetic chemistry and materials science (14)(15)(16)(17)(18)(19)(20)(21). Under certain conditions, the dynamic networks keep stable, but polymer chains could be depolymerized or rearrangement of the topological network structures could occur once dynamic covalent bonds are activated (22)(23)(24)(25).…”

Section: Introductionmentioning

confidence: 99%

Weldable and Closed-loop Recyclable Monolithic Dynamic Covalent Polymer Aerogels

Zhang

Zhao

et al. 2021

Preprint

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Owing to their low density, high porosity and unique micro-nanostructures, aerogels are attractive for applications in various aspects, but at the same time, suffer from shrinkage and/or cracking during preparation, mechanical brittleness, low production efficiency, and non-degradation. Herein, we introduce the concept of dynamic covalent polymer chemistry to produce a new class of aerogels⎯referred to as DCPAs. The resulting light DCPAs display large-scale preparation prospect and feature high porosity (90.7-91.3%), large degrees of compression (80% strain) and bending (diametral deflection of 30 mm) without any cracks, as well as considerable tensile property (elongation at break of 32.7%). In addition, our DCPAs showcase emergent characteristics of weldability, repairability, and closed-loop recyclability that are highly desirable for affording versatile materials platforms but hardly achieved by traditional aerogels. Benefiting from the robust porous structures, we demonstrate the potential of the DCPAs for applications in thermal insulation and emulsion separation. These findings reveal that the dynamic covalent bond strategy would be generalized for the production of a new generation of aerogels with customized features for functioning in the field of intelligent and sustainable materials.

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A strong, biodegradable and recyclable lignocellulosic bioplastic

Cited by 440 publications

References 38 publications

Cellulose-Based Films with Ultraviolet Shielding Performance Prepared Directly from Waste Corrugated Pulp

Cellulose-Based Films with Ultraviolet Shielding Performance Prepared Directly from Waste Corrugated Pulp

Efficient Plastic Recycling and Remolding Circular Economy Using the Technology of Trust–Blockchain

Weldable and Closed-loop Recyclable Monolithic Dynamic Covalent Polymer Aerogels

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