Engineering thermally and electrically conductive biodegradable polymer nanocomposites

Guo, Yichen; Zuo, Xianghao; Xue, Yuan; Tang, Jinghan; Gouzman, Michael; Fang, Yiwei; Zhou, Yuchen; Wang, Likun; Yu, Yingjie; Rafailovich, Miriam

doi:10.1016/j.compositesb.2020.107905

Cited by 68 publications

(40 citation statements)

References 59 publications

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“…This is hopeful to solve the contradiction between functionality and practicality when designing formulations of functional systems, no need to compromise a great reduction at mechanical property when filler loadings are extremely high for achieving a specific function. [ 8b,33 ]…”

Section: Resultsmentioning

confidence: 99%

Ultrafast Fabrication of Graphene‐Reinforced Nanocomposites via Synergy of Steam Explosion and Alternating Convergent‐Divergent Flow

Xie

et al. 2021

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Producing high‐quality graphene and polymer/graphene nanocomposite is facing the problems of complex procedure, low efficiency, and serious resource waste. To explore a new fabrication approach with high efficiency and low cost is crucial for solving these technical issues, which becomes a current research hotspot and also a great challenge. Herein, a one‐step melt mixing strategy based on the synergy of steam explosion and alternating convergent‐divergent flow, is innovatively developed to fabricate high‐density polyethylene (HDPE)/graphene nanocomposites using industrial‐grade expanded graphite (EG) without chemical agents and complex procedures. The co‐action of the external force derived from elongational melts and the internal force generated by steam explosion make EG ultrafastly exfoliate into few‐layer graphene nanosheets (GNS) and simultaneously disperse in melts within 4 min. The as‐produced GNS have a lateral size of over 5 µm and a minimum thickness of 1.4 nm, can introduce super heterogeneous nucleation to HDPE macromolecules and greatly increases nanocomposite crystallinity up to 86.5%. Moreover, plentiful HDPE crystallites and well‐dispersed GNS jointly form an improved thermally‐conductive network, making nanocomposites with a rapid‐respond ability in solar‐to‐thermal conversion and heat dissipation. This facile strategy will facilitate the development of scalable production and wide application of high‐performance graphene and highly‐filled nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Ultrafast Fabrication of Graphene‐Reinforced Nanocomposites via Synergy of Steam Explosion and Alternating Convergent‐Divergent Flow

Xie

et al. 2021

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“…До інших біорозкладних матеріалів для використання у виробництві електроніки належать папір, хітин [64], PBAT, PLA [65], мигдалева камедь [66].…”

Section: біорозкладні сенсориunclassified

Flexible and Biodegradable Sensors: Materials, Manufacturing Technology and Devices on Its Basis

Lapshuda¹,

Koval²

2021

KPI SN

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Background. Currently, there is a significant number of technologies and materials in the world that are used to manufacture flexible electronics devices. Therefore, a review of various technologies and materials for the manufacture of flexible sensors, which would not be inferior in terms of sensitivity to their solid-state counterparts, is in demand. In addition, most modern flexible electronics technologies are based on the use of artificial polymers, the production of which pollutes the environment and which need to be disposed of at the end of its service life. Therefore, there is an urgent need to find an alternative to artificial polymers, environmentally friendly material. Objective. The purpose of the paper is to determine design and technological features of manufacturing and application of flexible and biodegradable electronic sensors. Methods. The article analyses, classifies and compares different technologies and materials for the manufacture of flexible sensors, which would not be inferior to their solid-state counterparts in terms of sensitivity. The technological features of synthesis and the main characteristics of flexible sensors made on the basis of artificial and biodegradable materials were also compared in the paper. Results. The design and technological features of manufacturing as well as application of flexible electronic sensors in comparison with their solid-state analogues were determined in the paper. Three groups of substrate materials that can be used for the synthesis of flexible sensors have been identified and their performance characteristics analysed. A comparison of different production techniques for flexible electronic sensors in terms of environmental friendliness, cost and manufacturability is carried out. Conclusions. The most promising biodegradable material, on the surface of which one can create a flexible sensor, is nanocellulose. Different types of printing are the most promising production technique for the manufacture of such devices, because they are cheap and can provide high productivity. Based on the obtained results, it is possible to improve the existing and develop new methods of creating flexible electronics devices that do not require recycling.

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“…Polymer blends are a strategy to improve the mechanical properties of the matrix and the dispersion of carbonaceous fillers [ 190 , 218 ]. Films containing GNP, as conductive filler, and a matrix of a blend of PLA biopolymer and poly (butylene adipate-co-butylene terephthalate) (PBAT) synthetic biodegradable polymer were successfully prepared [ 219 ]. PLA has a weak affinity with GNP, while PBAT has a good affinity thus enabling to hold high GNP loadings.…”

Section: Graphene Derivatives-based Biocomposites As Food Packaginmentioning

confidence: 99%

Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

et al. 2020

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This review aims to showcase the current use of graphene derivatives, graphene-based nanomaterials in particular, in biopolymer-based composites for food packaging applications. A brief introduction regarding the valuable attributes of available and emergent bioplastic materials is made so that their contributions to the packaging field can be understood. Furthermore, their drawbacks are also disclosed to highlight the benefits that graphene derivatives can bring to bio-based formulations, from physicochemical to mechanical, barrier, and functional properties as antioxidant activity or electrical conductivity. The reported improvements in biopolymer-based composites carried out by graphene derivatives in the last three years are discussed, pointing to their potential for innovative food packaging applications such as electrically conductive food packaging.

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Engineering thermally and electrically conductive biodegradable polymer nanocomposites

Cited by 68 publications

References 59 publications

Ultrafast Fabrication of Graphene‐Reinforced Nanocomposites via Synergy of Steam Explosion and Alternating Convergent‐Divergent Flow

Ultrafast Fabrication of Graphene‐Reinforced Nanocomposites via Synergy of Steam Explosion and Alternating Convergent‐Divergent Flow

Flexible and Biodegradable Sensors: Materials, Manufacturing Technology and Devices on Its Basis

Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

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