Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties

Abstract The current system of disposal of plastic materials fabricated from petroleum‐based resources causes serious environmental pollution. To solve the problem, a bioplastic called “cell‐plastic” is developed, in which unicellular green algal cells serve as a fundamental resource. This approach...

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Main Authors: Kohei Iritani, Akihito Nakanishi, Ayami Ota, Takashi Yamashita
Format: Article
Language:English
Published: Wiley 2021-08-01
Series:Global Challenges
Subjects:
Online Access:https://doi.org/10.1002/gch2.202100026
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spelling doaj-4502bb089ea4413fa9e0ad4a52a01f302021-08-04T10:30:16ZengWileyGlobal Challenges2056-66462021-08-0158n/an/a10.1002/gch2.202100026Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal PropertiesKohei Iritani0Akihito Nakanishi1Ayami Ota2Takashi Yamashita3Department of Applied Chemistry School of Engineering Tokyo University of Technology Tokyo 192‐0982 JapanSchool of Bioscience and Biotechnology Tokyo University of Technology Tokyo 192‐0982 JapanDepartment of Applied Chemistry School of Engineering Tokyo University of Technology Tokyo 192‐0982 JapanDepartment of Applied Chemistry School of Engineering Tokyo University of Technology Tokyo 192‐0982 JapanAbstract The current system of disposal of plastic materials fabricated from petroleum‐based resources causes serious environmental pollution. To solve the problem, a bioplastic called “cell‐plastic” is developed, in which unicellular green algal cells serve as a fundamental resource. This approach converts CO2 in the atmosphere directly into plastic products by exploiting the photosynthetic‐driven proliferation of algal cells. Herein, cell‐plastic films are fabricated using biodegradable and water‐soluble polyvinyl alcohol (PVA) as a matrix, in which the effects of a cell‐to‐matrix mixing ratio and the chemical structure of the matrix on the mechanical and thermal properties are investigated. As a method of the chemical structural change, a cross‐linking structure is introduced to the matrix by connecting hydroxy groups of PVA using aldehyde. The tensile tests reveal that the PVA‐cell‐plastic film maintains the mechanical properties of PVA film. Moreover, a cross‐linked cell‐plastic film exhibits high water absorption, making it suitable as a functional cell‐plastic material.https://doi.org/10.1002/gch2.202100026biodegradable polymerscell‐plasticsgreen algal cellspolyvinyl alcoholwater absorption ability
collection DOAJ
language English
format Article
sources DOAJ
author Kohei Iritani
Akihito Nakanishi
Ayami Ota
Takashi Yamashita
spellingShingle Kohei Iritani
Akihito Nakanishi
Ayami Ota
Takashi Yamashita
Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
Global Challenges
biodegradable polymers
cell‐plastics
green algal cells
polyvinyl alcohol
water absorption ability
author_facet Kohei Iritani
Akihito Nakanishi
Ayami Ota
Takashi Yamashita
author_sort Kohei Iritani
title Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
title_short Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
title_full Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
title_fullStr Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
title_full_unstemmed Fabrication of Novel Functional Cell‐Plastic Using Polyvinyl Alcohol: Effects of Cross‐Linking Structure and Mixing Ratio of Components on the Mechanical and Thermal Properties
title_sort fabrication of novel functional cell‐plastic using polyvinyl alcohol: effects of cross‐linking structure and mixing ratio of components on the mechanical and thermal properties
publisher Wiley
series Global Challenges
issn 2056-6646
publishDate 2021-08-01
description Abstract The current system of disposal of plastic materials fabricated from petroleum‐based resources causes serious environmental pollution. To solve the problem, a bioplastic called “cell‐plastic” is developed, in which unicellular green algal cells serve as a fundamental resource. This approach converts CO2 in the atmosphere directly into plastic products by exploiting the photosynthetic‐driven proliferation of algal cells. Herein, cell‐plastic films are fabricated using biodegradable and water‐soluble polyvinyl alcohol (PVA) as a matrix, in which the effects of a cell‐to‐matrix mixing ratio and the chemical structure of the matrix on the mechanical and thermal properties are investigated. As a method of the chemical structural change, a cross‐linking structure is introduced to the matrix by connecting hydroxy groups of PVA using aldehyde. The tensile tests reveal that the PVA‐cell‐plastic film maintains the mechanical properties of PVA film. Moreover, a cross‐linked cell‐plastic film exhibits high water absorption, making it suitable as a functional cell‐plastic material.
topic biodegradable polymers
cell‐plastics
green algal cells
polyvinyl alcohol
water absorption ability
url https://doi.org/10.1002/gch2.202100026
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AT ayamiota fabricationofnovelfunctionalcellplasticusingpolyvinylalcoholeffectsofcrosslinkingstructureandmixingratioofcomponentsonthemechanicalandthermalproperties
AT takashiyamashita fabricationofnovelfunctionalcellplasticusingpolyvinylalcoholeffectsofcrosslinkingstructureandmixingratioofcomponentsonthemechanicalandthermalproperties
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