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Polymers
Special Issues
Bio-Inspired Functional Polymers: Design, Manufacture and Application
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Bio-Inspired Functional Polymers: Design, Manufacture and Application

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 4225

Special Issue Editor

Prof. Dr. Zhuangzhi Sun

E-Mail Website
Guest Editor
College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150000, China
Interests: bionics; surface/interface science; ionic sensors and actuators; nano-generators; solar evaporation

Special Issue Information

Dear Colleagues

Nature has endowed organisms with many amazing abilities which enable organisms to stably form a biosphere under the conditions of low carbon or low energy consumption. This has provided great inspiration for human beings. From the ancient Chinese craftsman Lu Ban, who was inspired by the teeth of grass blades to invent the iron saw, to the surface rent reduction of the bionic shark skin and bionic kingfisher beak design of streamlined modern high-speed rail, imitating nature in design and manufacturing (bionics) has always accompanied progress in human civilization. At the same time, the development of intelligent materials is a hot research topic among scholars, and it also provides important support for human life to become more intelligent. In this Special Issue, we aim to report original articles that present the latest progress in bioinspired smart materials, including their design, manufacture and applications. The corresponding manuscripts can include, but are not limited to, soft sensors and actuators, nanogenerators, solar evaporation, etc. Through this Special Issue, we hope to communicate about bioinspired design and manufacturing, as well as reflect its current hotspots, new challenges, and future perspectives.

Prof. Dr. Zhuangzhi Sun
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soft sensors and wearable devices
  • soft actuators including electricity, magnetism, heat, ions, etc.
  • nanogenerators
  • solar evaporation
  • smart wood

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Published Papers (3 papers)

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Research

11 pages, 2270 KiB  
Article
High Throughput Fabrication of Flexible Top-Driven Sensing Probe
by Fei Li, Xi Liu, Wensheng Wang, Haoyan Xu, Wenlong Song and Zhuangzhi Sun
Polymers 2022, 14(23), 5124; https://doi.org/10.3390/polym14235124 - 24 Nov 2022
Viewed by 1194
Abstract
In this work, considering the current status of conservative and complicated traditional thrombosis treatment methods, a kind of flexible intelligent probe (FIP) with a top-driven sensing strategy is proposed to realize the expected function of thrombosis accurate localization in a liquid flow environment. [...] Read more.
In this work, considering the current status of conservative and complicated traditional thrombosis treatment methods, a kind of flexible intelligent probe (FIP) with a top-driven sensing strategy is proposed to realize the expected function of thrombosis accurate localization in a liquid flow environment. After throughput fabrication, we find that the FIP has excellent electrical conductivity and mechanical properties. Notable, our FIP with the principle of piezo-resistive sensing has a quasi-linear sensitivity (approx. 0.325 L per minute) to flow sensing in the low flow velocity range (0–1 L per minute). Via the well-designed magnetically driven method, our FIP has a maximum deflection output force of 443.264 mN, a maximum deflection angle of 43°, and a maximum axial force of 54.176 mN. We demonstrate that the FIP is capable of completing the specified command actions relatively accurately and has a good response to real-time sensing feedback performance, which has broad application prospects in thrombus localization detection. Full article
(This article belongs to the Special Issue Bio-Inspired Functional Polymers: Design, Manufacture and Application)
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14 pages, 2175 KiB  
Article
Analysis of Creep Properties and Factors Affecting Wood Plastic Composites
by Li Feng and Chunyan Zhao
Polymers 2022, 14(14), 2814; https://doi.org/10.3390/polym14142814 - 10 Jul 2022
Cited by 4 | Viewed by 2001
Abstract
Wood plastic composite (WPC) materials are mainly used as building slabs and load-bearing slabs, which will cause creep deformation, structural failure, and safety problems. Therefore, this work used high-density polyethylene and poplar wood flour as the main raw materials to prepare wood–plastic boards. [...] Read more.
Wood plastic composite (WPC) materials are mainly used as building slabs and load-bearing slabs, which will cause creep deformation, structural failure, and safety problems. Therefore, this work used high-density polyethylene and poplar wood flour as the main raw materials to prepare wood–plastic boards. The bending creep tests of wood–plastic sheets were carried out using an orthogonal test method. According to the creep test results, the influences of the WPC ratio molding temperature, pelleting temperature, coupling agent screw speed, and other technological factors on the creep properties of WPC composites under different loads are analyzed, and the influences of WPC creep properties on structural reliability are also analyzed. The results indicate that the wood–plastic ratio and screw speed are significant factors when the load is at 30% bending strength within the 24h creep test. When the load is at 50% bending strength, the wood–plastic ratio and molding temperature are the significant factors. When the load is at 70% bending strength, the wood–plastic ratio is the most significant factor. When the load is at 50% bending strength within the 240 h creep test, the wood–plastic ratio and molding temperature are significant factors. When the load is at 30% bending strength, the influence of each factor on the creeping variable is provided in the following descending order: wood–plastic ratio, molding temperature, granulation temperature, coupling agent, and screw speed, but none of them are significant factors. Full article
(This article belongs to the Special Issue Bio-Inspired Functional Polymers: Design, Manufacture and Application)
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11 pages, 16356 KiB  
Article
A Highly Sensitive, Ultra-Durable, Eco-Friendly Ionic Skin for Human Motion Monitoring
by Zhaoxin Li, Haoyan Xu, Na Jia, Yifei Li, Liangkuan Zhu and Zhuangzhi Sun
Polymers 2022, 14(9), 1902; https://doi.org/10.3390/polym14091902 - 6 May 2022
Cited by 5 | Viewed by 1877
Abstract
Ionic conductive hydrogels have shown great potential in areas such as wearable devices and electronic skins. Aiming at the sensitivity and biodegradability of the traditional flexible hydrogel electronic skin, this paper developed an ionic skin (S−iSkin) based on edible starch–sodium alginate (starch–SA), which [...] Read more.
Ionic conductive hydrogels have shown great potential in areas such as wearable devices and electronic skins. Aiming at the sensitivity and biodegradability of the traditional flexible hydrogel electronic skin, this paper developed an ionic skin (S−iSkin) based on edible starch–sodium alginate (starch–SA), which can convert the external strain stimulus into a voltage signal without an external power supply. As an excellent ion conductive polymer, S−iSkin exhibited good stretchability, low hydrophilicity and outstanding electrochemical and sensing properties. Driven by sodium ions, the ion charge transfer resistance of S−iSkin is reduced by 4 times, the capacitance value is increased by 2 times and its conductivity is increased by 7 times. Additionally, S−iSkin has excellent sensitivity and linearity (R2 = 0.998), a long service life and good biocompatibility. Under the action of micro-stress, it can produce a voltage change ratio of 2.6 times, and its sensitivity is 52.04. The service life test showed that it can work stably for 2000 s and work more than 200 stress–voltage response cycles. These findings provide a foundation for the development of health monitoring systems and micro-stress sensing devices based on renewable biomass materials. Full article
(This article belongs to the Special Issue Bio-Inspired Functional Polymers: Design, Manufacture and Application)
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