Bozó, ÉvaErvasti, HenriHalonen, NiinaShokouh, Seyed Hossein HosseiniTolvanen, JarkkoPitkänen, OlliJärvinen, TopiasPálvölgyi, Petra S.Szamosvölgyi, ÁkosSápi, AndrásKonya, ZoltanZaccone, MartaMontalbano, LuanaDe Brauwer, LaurensNair, RakeshMartínez-Nogués, VanesaSan Vicente Laurent, LeireDietrich, ThomasFernández de Castro, LauraKordas, Krisztian2021-10-20Bozó , É , Ervasti , H , Halonen , N , Shokouh , S H H , Tolvanen , J , Pitkänen , O , Järvinen , T , Pálvölgyi , P S , Szamosvölgyi , Á , Sápi , A , Konya , Z , Zaccone , M , Montalbano , L , De Brauwer , L , Nair , R , Martínez-Nogués , V , San Vicente Laurent , L , Dietrich , T , Fernández de Castro , L & Kordas , K 2021 , ' Bioplastics and Carbon-Based Sustainable Materials, Components, and Devices: Toward Green Electronics : Toward Green Electronics ' , ACS applied materials & interfaces , vol. 13 , no. 41 , pp. 49301-49312 . https://doi.org/10.1021/acsami.1c137871944-8244researchoutputwizard: 11556/1219Publisher Copyright: ©The continuously growing number of short-life electronics equipment inherently results in a massive amount of problematic waste, which poses risks of environmental pollution, endangers human health, and causes socioeconomic problems. Hence, to mitigate these negative impacts, it is our common interest to substitute conventional materials (polymers and metals) used in electronics devices with their environmentally benign renewable counterparts, wherever possible, while considering the aspects of functionality, manufacturability, and cost. To support such an effort, in this study, we explore the use of biodegradable bioplastics, such as polylactic acid (PLA), its blends with polyhydroxybutyrate (PHB) and composites with pyrolyzed lignin (PL), and multiwalled carbon nanotubes (MWCNTs), in conjunction with processes typical in the fabrication of electronics components, including plasma treatment, dip coating, inkjet and screen printing, as well as hot mixing, extrusion, and molding. We show that after a short argon plasma treatment of the surface of hot-blown PLA-PHB blend films, percolating networks of single-walled carbon nanotubes (SWCNTs) having sheet resistance well below 1 kω/□ can be deposited by dip coating to make electrode plates of capacitive touch sensors. We also demonstrate that the bioplastic films, as flexible dielectric substrates, are suitable for depositing conductive micropatterns of SWCNTs and Ag (1 kω/□ and 1 ω/□, respectively) by means of inkjet and screen printing, with potential in printed circuit board applications. In addition, we exemplify compounded and molded composites of PLA with PL and MWCNTs as excellent candidates for electromagnetic interference shielding materials in the K-band radio frequencies (18.0-26.5 GHz) with shielding effectiveness of up to 40 and 46 dB, respectively.129372671enginfo:eu-repo/semantics/openAccessjournal article10.1021/acsami.1c13787BioplasticsBlendsCompositesPyrolyzed ligninElectrodesTouch screensEMI shieldingElectrical devicesBioplasticsBlendsCompositesPyrolyzed ligninElectrodesTouch screensEMI shieldingElectrical devicesGeneral Materials ScienceSDG 3 - Good Health and Well-beingProject IDinfo:eu-repo/grantAgreement/EC/H2020/792261/EU/Development of new Competitive and Sustainable Bio-Based Plastics/NEWPACKinfo:eu-repo/grantAgreement/EC/H2020/792261/EU/Development of new Competitive and Sustainable Bio-Based Plastics/NEWPACKFunding InfoBusiness Finland (project 1212/31/2020, All green structural electronics), EU Horizon_x000D_ 2020 BBI JU (project 792261, NewPack), and EU Interreg Nord Lapin liitto (project 20201468, Flexible transparent conductive f ilms as electrodes) and Academy of Finland (project_x000D_ 316825, Nigella).Business Finland (project 1212/31/2020, All green structural electronics), EU Horizon_x000D_ 2020 BBI JU (project 792261, NewPack), and EU Interreg Nord Lapin liitto (project 20201468, Flexible transparent conductive f ilms as electrodes) and Academy of Finland (project_x000D_ 316825, Nigella).http://www.scopus.com/inward/record.url?scp=85117844340&partnerID=8YFLogxK