Article
Physics, Applied
Anil Aryal, Adelaide Bradicich, Ethan T. Iverson, Carolyn T. Long, Hsu-Cheng Chiang, Jaime C. Grunlan, Patrick J. Shamberger
Summary: The development of thermally conducting electrical insulators plays a critical role in thermal management applications for advanced electronics and electrical devices. In this study, polymer nanocomposite films composed of various polymers and dielectric fillers were synthesized using a layer-by-layer technique. The thermal conductivity of the films was measured, and factors such as film growth, filler type, filler volume fraction, polymer chemical structures, and temperature were found to affect the thermal conductivity. Comparisons with theoretical models were made to understand the heat transfer behavior in such layered films composed of dielectrics and polymers.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Carolyn T. Long, Ruisong Wang, Charles Shoalmire, Dion S. Antao, Patrick J. Shamberger, Jaime C. Grunlan
Summary: Research has shown that multilayer nanocomposite films can effectively protect metal substrates from extreme heat by forming ceramic bubbles, slowing down heat transfer. This technology could be utilized to safeguard important metal components (in automobiles, aircraft, etc.) from fire-related damage or other transient high-temperature situations.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
ChongXiao Yuan, Chao Zhang, Shibing Xiao, Cheng Yang, Nannan Zhang, Huajun Sun
Summary: This study focuses on the preparation and modification of PZT nanofibers, fabrication of nanocomposite films, and production of tri-layer nanocomposite films. The alignment of the PZT nanofibers enhances the breakdown strength and polarization of the films. Electron traps at the interlayer interfaces extend the breakdown path and mitigate the electric field concentration effect, resulting in excellent electrical properties of the tri-layer films.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Johana Andrade, Chelo Gonzalez-Martinez, Amparo Chiralt
Summary: Multilayer materials with good interlayer-adhesion were successfully obtained by thermocompression, showing excellent performance in food packaging. These materials exhibit superior barrier properties and effective control of microbial growth in food.
Review
Biochemistry & Molecular Biology
Nur Thohiroh Md Bukhari, Nurul Fazita Mohammad Rawi, Nur Adilah Abu Hassan, Nur Izzaati Saharudin, Mohamad Haafiz Mohamad Kassim
Summary: A million tonnes of plastic are disposed of after single use each year. Biodegradable polymers offer a promising alternative to petroleum-based polymers. The use of seaweed-derived polysaccharides-based composites has garnered attention for its renewability and sustainability in various industries. This review article examines the incorporation of nanoparticles into seaweed films to enhance their mechanical, thermal, and water barrier properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Applied
Manon Guivier, Giana Almeida, Sandra Domenek, Chloe Chevigny
Summary: Nanocelluloses are potential high gas barrier materials for biobased food packaging, with high oxygen barrier properties. A multilayer material architecture with a biobased tie layer was developed to protect nanocellulose films from water. Coated PLA(CNC) films showed the best oxygen barrier performance due to thicker layers, and the oxygen barrier properties remained constant in different relative humidity conditions.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Melendez-Rodriguez, Sergio Torres-Giner, Inmaculada Angulo, Maria Pardo-Figuerez, Loic Hilliou, Jose Manuel Escuin, Luis Cabedo, Yuval Nevo, Cristina Prieto, Jose Maria Lagaron
Summary: This study developed recyclable high-oxygen-barrier multilayer films based on commercial PHA materials, including CNC and PHBV layers. The multilayer films exhibited good interlayer adhesion and transparency, with the addition of CNC improving the stiffness of the structure.
Article
Food Science & Technology
Eligenes S. Nascimento, Matheus O. Barros, Miguel A. Cerqueira, Helder L. Lima, Maria de Fatima Borges, Lorenzo M. Pastrana, Francisco Miguel Gama, Morsyleide F. Rosa, Henriette M. C. Azeredo, Catarina Goncalves
Summary: This study focused on the application of nanocrystals in the preparation of all-cellulose composites based on bacterial cellulose, and investigated their effects on mechanical properties, barrier properties, and water resistance. The results showed that the addition of nanocrystals significantly improved the mechanical properties and water resistance of the films, making them suitable for food packaging applications.
FOOD PACKAGING AND SHELF LIFE
(2021)
Article
Materials Science, Composites
Yuanyuan Yao, Shaohua Jin, Dongxu Wang, Junfeng Wang, Dongze Li, Xijuan Lv, Qinghai Shu
Summary: This study developed a nanocomposite film with excellent electromagnetic interference (EMI) shielding properties by coating silver nanowires with polydopamine, attaching them to graphene, and loading magnetic particles. The resulting film showed flexible and fine EMI shielding performance in both GPS band and X band, making it a promising material for flexible electronics and electromagnetic countermeasure applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Shiwei Gao, Yifeng Hu
Summary: In this study, In48.9Sb15.5Te35.6 (IST) was used as a stable interlayer to improve the thermal stability and resistance drift of Sb films. The introduction of In-Sb bonds at the multilayer interfaces enhanced the thermal stability of the films. The Sb/IST multilayer film exhibited higher phase transition temperature, crystallization activation energy, and better adhesion to the substrate compared to Sb films.
Article
Materials Science, Composites
Jingding Zhang, Ling Zhang, Chunzhong Li
Summary: By adding modified TiO2@graphene oxide/montmorillonite fillers, a polyvinyl alcohol-based nanocomposite film with excellent gas barrier, flame retardant, and mechanical properties is fabricated, showing potential applications in packaging and coating industries.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Prince Kumar Mishra, Arihant Ahuja, Bhupender Kumar Mahur, Vibhore Kumar Rastogi
Summary: In this study, nanocomposite films were made using pre-consumer textile waste. The effects of nanocellulose on the properties of the films were investigated in detail. It was found that the addition of nanocellulose decreased the crystallinity of the films and increased hydrogen bonding between nanocellulose and nylon. The nanocomposite films also showed improved water vapor barrier properties.
EXPRESS POLYMER LETTERS
(2023)
Article
Polymer Science
Nooria Arooj, Muhammad Mumtaz, Abdur Rehman, Izhar Ahmad, Sabih Khan, Attaullah Shah, Mahmood ul Hassan, Muhammad Raffi
Summary: In this study, nylon 6,6 based hybrid nanocomposite films loaded with CNFs were prepared on cellulosic substrates using air spray coating technique. The results showed the formation of crystalline films with a conductive network due to the evenly distributed CNFs in the polymer matrix. The polymer nanocomposite samples exhibited significantly increased dc conductivity with the gradual increase of CNF content. The sample containing 50 wt% CNFs showed a dc conductivity value of 0.03 Scm(-1) and a shielding effectiveness of 44 dB through THz-TDS.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Tianbo Deng, Binbin Xu, Ling Zhang, Chunzhong Li
Summary: This study demonstrates a generic approach to fabricate multifunctional poly(vinyl alcohol) (PVA)-based nanocomposite films through a solvent evaporation method with modified graphene oxide (GO) nanosheets as functional fillers. The combination of anchored bottlebrush polymers (BBPs) and GO nanosheets leads to the formation of well-dispersed and aligned GO nanosheets in the PVA matrix, resulting in high photothermal efficiency, UV resistance, exceptional gas barrier, and superior antimicrobial property. This research provides a new approach for designing multifunctional nanocomposites with ordered structures.
Article
Food Science & Technology
Dalila M. Vieira, Mariana A. Andrade, Fernanda Vilarinho, Ana Sanches Silva, Pedro V. Rodrigues, M. Cidalia R. Castro, Ana V. Machado
Summary: By incorporating green tea extract, the properties of LDPE films can be improved, and an active and sustainable food packaging film can be developed at an industrial scale.
FOOD PACKAGING AND SHELF LIFE
(2022)