Article
Polymer Science
Geetanjali Jagdeva, Sohan Lal, Sanjiv Arora, Parvin Kumar
Summary: The recycling process of plastics usually reduces their strength and stiffness, which limits their applications. To overcome this, recycled low-density polyethylene (rLDPE) composites filled with teak leaf powder were prepared and irradiated with gamma rays. The composite with 30% teak leaf content and 125 kGy gamma dose showed the best mechanical properties, with higher tensile strength, tensile modulus, flexural strength, and flexural modulus compared to rLDPE.
IRANIAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Nina Girard-Perier, Samuel Dorey, Fanny Gaston, Fabien Girard, Sylvain R. A. Marque, Nathalie Dupuy
Summary: The effects of gamma and electron beam irradiation on PE/EVOH/PE film used in biopharmaceutical and biotechnological applications were studied using FTIR spectroscopy combined with chemometric treatment. The behavior of the irradiated samples varied at different time points, but after 6 months, gamma irradiated samples showed similar polymer arrangement to electron beam irradiated samples.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Physics, Applied
Liang Cao, Lisheng Zhong, Yinge Li, Wenpeng Li, Jinghui Gao, Lingna Xu, George Chen
Summary: This study examines the correlation between the DC conductivity and cross-linking characteristics of XLPE-polystyrene (PS) composites. The results show that by adjusting the cross-linking structure, different trap distribution characteristics were achieved, leading to changes in the DC conductivity and average trap depth of the composites. The increase in average trap depth was found to reduce carrier mobility and contribute to the decrease in DC conductivity. The interaction between PS particles and the matrix introduced by cross-linking is considered to play a dominant role in determining the charge conduction in XLPE-PS composites.
APPLIED PHYSICS LETTERS
(2022)
Review
Agricultural Engineering
Jyoti Singh Jadaun, Shilpi Bansal, Ankit Sonthalia, Amit K. Rai, Sudhir P. Singh
Summary: Microbial technologies for degrading different types of plastics are important for addressing the environmental threat posed by their usage.
BIORESOURCE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Arunkumar Seshadri, Bren Philips, Akshay J. Dave, Shay Harrison, Joseph Pegna, Koroush Shirvan
Summary: This study introduces the microstructure and mechanical properties of SiC fibers prepared by Laser Chemical Vapor Deposition (LCVD), compares the hydrothermal corrosion of different stoichiometric SiC fibers, and concludes that the dissolution of the SiC fibers under radiation and high-temperature, high-pressure conditions depends on factors such as stoichiometric ratio.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Horticulture
Laxman Jat, Shreedhar Singh Lakhawat, Virendra Singh, Ramhari Meena, Jagdish Lal Choudhary, Suman Gathala
Summary: Gamma irradiation increased the antioxidant potential of jujube fruit, enhancing its beneficial health effects.
SCIENTIA HORTICULTURAE
(2022)
Article
Materials Science, Multidisciplinary
Laszlo Meszaros, Balazs Tatar, Krisztina Toth, Anna Foldes, Krisztina S. Nagy, Angela Jedlovszky-Hajdu, Tunde Toth, Kolos Molnar
Summary: This study aimed to develop a self-reinforced composite material that can be processed using standard thermoplastic techniques and has potential applications in implants. By cross-linking fibers with gamma irradiation and combining high-density polyethylene with high-performance polyethylene fibers, the mechanical performance of the composite material was improved without compromising biocompatibility. The addition of 20 m% 200 kGy irradiated Dyneema (R) fibers significantly increased the tensile modulus and strength of the composite material, which exhibited good biocompatibility. The manufacturing method presented in this study offers an economical solution that can be implemented using widely available processing technologies and machines.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
Sadulla R. Allayarov, Matthew P. Confer, Sergei Demidov, Georgii Malkov, Svetlana A. Bogdanova, Ilgiza F. Shaimukhametova, Vadim G. Nikolsky, Yurii Perukhin, Yuliya Podvalnaya, Igor Zyukin, David A. Dixon
Summary: The study investigates the optical and surface-energy properties of polyethylene under different treatment conditions, including gamma-irradiation, high temperature, and shear grinding. It is found that oxygen-containing groups and unsaturated bonds are formed and accumulated during the treatment process, leading to the generation of polar functional groups on the sample surface.
Article
Physics, Fluids & Plasmas
Kai Xu, Han-Jie Zhu, Guo-Feng Zhang, Wu-Ming Liu
Summary: The research focuses on the charging process of open quantum battery in the weak system-environment coupling regime. It is found that manipulating the spectral density of environment can improve the performance of open quantum battery in a reservoir environment. Furthermore, increasing the coupling strength between nearest-neighbor environments and decreasing the size of the environments can enhance the performance of quantum battery in multiple coupled reservoir environments.
Article
Chemistry, Multidisciplinary
Federica Zaccardi, Elisa Toto, Shreya Rastogi, Valeria La Saponara, Maria Gabriella Santonicola, Susanna Laurenzi
Summary: Novel polyethylene nanocomposites filled with carbon nanotubes or graphene nanoplatelets were fabricated and examined for their radiation shielding properties and multifunctional capabilities. The effects of proton exposure on the nanocomposites' chemical and physical structure, wettability, and surface morphology were evaluated to determine the most suitable system for space shielding applications.
Article
Biochemistry & Molecular Biology
Ming-Hui Yang, Yi-Shan Lu, Tzu-Chuan Ho, Daniel Hueng-Yuan Shen, Ying-Fong Huang, Kuo-Pin Chuang, Cheng-Hui Yuan, Yu-Chang Tyan
Summary: Gamma-ray irradiation on mung beans resulted in decreased malondiadehyde concentration, increased flavonoids and DPPH radical scavenging activity levels, and the identification of antioxidant proteins.
Article
Chemistry, Analytical
Pei-Ying Lin, I-Hsuan Wu, Chen-Yu Tsai, Rajendranath Kirankumar, Shuchen Hsieh
Summary: This study used surface-enhanced Raman spectroscopy to detect and analyze the release of plastic particles in packaged mineral water samples. The results showed that both plastic cups and bottles released particles under irradiation, with plastic cups degrading more readily. The study demonstrated the potential of SERS as a sensitive and rapid method for detecting plastic particle contamination in mineral water packaging.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biology
Nevena Nikolova, Donika Ivanova, Zvezdelina Yaneva
Summary: This study investigates the radioprotective activity of silymarin and its derivatives, and finds that one of the compounds exhibits a higher radioprotective effect, while the natural extract silymarin shows no radioprotective potential.
Article
Polymer Science
Liqiang Chai, Beibei Zhang, Li Qiao, Peng Wang, Lijun Weng
Summary: The irradiation of PEEK with gamma rays results in surface oxidation and morphology defects, leading to an increase in static friction coefficient and a shorter run-in period, while decreasing the steady-state dynamic friction coefficient. However, the corresponding wear rate increases by one order of magnitude compared to unirradiated samples.
Article
Materials Science, Multidisciplinary
Elham Moradkhani, Mehdi Entezam, Mostafa Ahmadi, Hossein Ali Khonakdar, Holger Ruckdaschel, Volker Altstaedt
Summary: This study comprehensively investigates the influence of irradiation process on the molecular characteristics, rheological, and thermo-mechanical properties of high-density polyethylene. The utility of irradiation dose, atmosphere, heat treatment, and polymer grade as important parameters is discussed, providing useful guidance for controlling the irradiation-induced modification in HDPE.
MATERIALS TODAY COMMUNICATIONS
(2022)
