Designing Ultratough, Malleable and Foldable Biocomposites for Robust Green Electronic Devices

2022 ◽  
Author(s):  
Xunan Hou ◽  
Siqi Liu ◽  
Chaobin He
Keyword(s):  
Polylactic Acid ◽  
Renewable Resources ◽  
Paradigm Shift ◽  
Electronic Devices ◽  
Sustainable Society

Polymers from renewable resources plays a key role in the paradigm shift towards a sustainable society. However, two common bioplastics polylactic acid (PLA) and polyhydroxybutyrate (PHB) still lack the toughness...

scholarly journals Bioplastics: requirement for sustainability

2020 ◽  
pp. 50-59
Author(s):  
Richa Srivastava ◽  
Ram Singh
Keyword(s):  
Information Sources ◽  
Electronic Devices ◽  
Natural Ecosystem ◽  
Growing Up ◽  
Sustainable Society ◽  
Global Environmental ◽  
Flexible Packaging ◽  
Alternative Materials ◽  
Definition Of ◽  
Lower Carbon

The petrochemical-based plastics are causing a strong challenge for the natural ecosystem leading to global environmental pollution due to their non-biodegradable nature. Hence, the requirement of alternative materials possessing environmental advantages received attention and leads to the development of bioplastics. Definition of bioplastics is not universal but broadly it can be defined as biodegradable plastic derived from biodegradable substances. Although, all types of bioplastics are not biodegradable, still their many advantages towards the environment cannot be ruled out and hence, their applications in varied areas have increased many-folds world-wide. Bioplastics are being used in rigid and flexible packaging materials, food and drinks containers, dining utensils, electronic devices, automotive and airplane parts, cable sheaths and casings, noise and thermal insulation panels and many more. The list is growing up. Bioplastics have shown their potential for a sustainable society and presents some advantages such as lower carbon footprint, energy efficiency, and eco-safety. This article discusses the basic information, sources, biodegradability, and applications of bioplastics.

scholarly journals Intumescent Biobased-Polylactide Films to Flame Retard Nonwovens

2009 ◽  
Vol 4 (2) ◽  
pp. 155892500900400 ◽  
Author(s):  
Christelle Reti ◽  
Mathilde Casetta ◽  
Sophie Duquesne ◽  
René Delobel ◽  
Jérémie Soulestin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Flame Spread ◽  
Renewable Resources ◽  
Fire Retardant ◽  
Ammonium Polyphosphate ◽  
Cone Calorimetry ◽  
New Process ◽  
Potential Use

The work focuses on the development of a new process to flame retard nonwovens, using films based on renewable resources. Films consist in intumescent formulations of polylactic acid (PLA), ammonium polyphosphate (APP) blended with lignin or starch and are coated on hemp or wool nonwovens. The objective of this study was to investigate the fire retardant and mechanical properties of textiles protected by FR PLA films for potential use in building applications. Horizontal and vertical flame spread tests as well as cone calorimetry tests show that flammability properties of nonwovens are significantly improved. Better mechanical properties are also obtained with coated nonwovens.

scholarly journals Notes from the Packaging Laboratory: Polylactic Acid -- An Exciting New Packaging Material

EDIS ◽  
1969 ◽  
Vol 2003 (17) ◽  
Author(s):  
Melisa Balkcom ◽  
Bruce Welt ◽  
Kenneth Berger
Keyword(s):  
Polylactic Acid ◽  
Renewable Resources ◽  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Packaging Material ◽  
Extension Service ◽  
Biological Engineering ◽  
University Of Florida ◽  
Agricultural Sciences ◽  
Engineering Department

Headway is being made with a polymer called Polylactic Acid (PLA), an affordable, recyclable, innovative packaging material made from renewable resources. This document is ABE339, one of a series of the Agricultural and Biological Engineering Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First published December 2002. https://edis.ifas.ufl.edu/ae210

scholarly journals Dictating anisotropic electric conductivity of a transparent copper nanowire coating by the surface structure of wood

2018 ◽  
Vol 15 (142) ◽  
pp. 20170864 ◽  
Author(s):  
Huizhang Guo ◽  
Martin Büchel ◽  
Xing Li ◽  
Aneliia Wäckerlin ◽  
Qing Chen ◽  
...  
Keyword(s):  
Renewable Resources ◽  
Structural Organization ◽  
Electronic Devices ◽  
Water Repellency ◽  
Transparent Conductors ◽  
Fusion Welding ◽  
Anisotropic Conductivity ◽  
Corrosion Resistant ◽  
Photonic Curing ◽  
Processing Steps

In this article, a robust, air-stable, flexible and transparent copper (Cu) nanowire (NW) network coating on the surface of the wood is presented, based on a fusion welding of the Cu NWs by photonic curing. Thereby, an anisotropic conductivity can be achieved, which is originating from the structural organization of the wood body and its surface. Furthermore, the Cu NWs are protected from oxidation or wear by a commercially available paraffin wax—polyolefin, which also results in surface water repellency. The developed processing steps present a facile and flexible routine for applying Cu NW transparent conductors to abundant biomaterials and solve current manufacturing obstacles for corrosion-resistant circuits while keeping the natural appearance of the substrate. It may open a venue for more extensive utilization of materials from renewable resources such as wood for electronic devices in smart buildings or mobility applications.

scholarly journals Polylactic acid (PLA): Improve it, use it, and dump it faster

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 2196-2199
Author(s):  
Narongrit Sombatsompop ◽  
Panupong Srimalanon ◽  
Teerasak Markpin ◽  
Benjaphorn Prapagdee
Keyword(s):  
Waste Management ◽  
Environmental Pollution ◽  
Polylactic Acid ◽  
Renewable Resources ◽  
Food Packaging ◽  
Antibacterial Agents ◽  
It Use ◽  
The World ◽  
Single Use ◽  
Alternative Approaches

Today, many people enjoy an easy lifestyle. However, this comfort has come with a price because of plastic that is thrown away after a single use. As such, governments around the world have pushed for biodegradable plastics to be produced, especially for food packaging, and these can be easily seen in supermarkets, for example. Using plastic for only one time has resulted in environmental pollution. To solve this problem, polylactic acid (PLA) has been introduced as an alternative bio-based plastic to replace artificial petroleum-based plastics. PLA comes from renewable resources and is biodegradable under certain conditions. Furthermore, the development of the properties of PLA could solve problems related to its weakness in packaging applications. This editorial proposes expansion of the property attributes of PLA to include hygienic character, through the addition of antibacterial agents. This can be done by introducing two alternative approaches for waste management: PLA recycling and degradation. However, some key research is still needed to improve the properties and waste management of PLA relative to the effectiveness of its reprocessing and acceleration of its (bio)degradation.

Polylactic Acid from Renewable Resources

2008 ◽  
pp. 381-407 ◽  
Author(s):  
Patrick Gruber ◽  
David E. Henton ◽  
Jack Starr
Keyword(s):  
Polylactic Acid ◽  
Renewable Resources

scholarly journals Nanocelluloses and Related Materials Applicable in Thermal Management of Electronic Devices: A Review

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 448 ◽  
Author(s):  
Kimiyasu Sato ◽  
Yuichi Tominaga ◽  
Yusuke Imai
Keyword(s):  
Thermal Management ◽  
Renewable Resources ◽  
Thermal Conduction ◽  
Electronic Devices ◽  
Heat Removal ◽  
Dielectric Materials ◽  
Electronics Industry ◽  
Insulating Materials ◽  
Thermal Conductivities

Owing to formidable advances in the electronics industry, efficient heat removal in electronic devices has been an urgent issue. For thermal management, electrically insulating materials that have higher thermal conductivities are desired. Recently, nanocelluloses (NCs) and related materials have been intensely studied because they possess outstanding properties and can be produced from renewable resources. This article gives an overview of NCs and related materials potentially applicable in thermal management. Thermal conduction in dielectric materials arises from phonons propagation. We discuss the behavior of phonons in NCs as well.

scholarly journals High Molecular Weight Poly(lactic acid) Synthesized with Apposite Catalytic Combination and Longer time

2018 ◽  
Vol 34 (4) ◽  
pp. 1984-1990
Author(s):  
Sanjay Kumar Singh ◽  
Prashant Anthony ◽  
Abhishek Chowdhury
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Polylactic Acid ◽  
Renewable Resources ◽  
Sulfonic Acid ◽  
Polymeric Materials ◽  
Poly Lactic Acid ◽  
Direct Polycondensation ◽  
Toluene Sulfonic Acid ◽  
Binary Catalyst

Biodegradable polymeric materials derived from renewable resources have attracted tremendous attention in different application. Polylactic acid (PLA) is one of the most useful biodegradable polymers. It is difficult to synthesize high molecular weight polylactic acid by direct polycondensation. The present work describes the synthesis of high molecular weight PLA by varying the duration of reaction and changing the sequence of catalyst addition. Binary catalyst used was SnCl2.2H2O/maleic anhydride and p-toluene sulfonic acid. PLA with molecular weight (6.503X105) was obtained in 50 hours. FTIR, H1 and 13C NMR ascertained the structure of synthesized PLA whereas GPC was used for determining molecular weight.

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