As a result of the research, the possibility of directional control of the operational properties of epoxy composites by the use of small additives of thermally expanded graphite-graphene structures has been proved. The rational content of the structuring additive in the composition of the epoxy composite (0.05 parts by mass.) was selected, which ensured an increase in the studied complex of physico-mechanical properties. The influence of thermally expanded graphite on the process of structure formation of an epoxy composite has been established. The addition of thermally expanded graphite increases thermal, fire and heat resistance as well as the coefficient of heat-conducting epoxy composite.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6838145 | PMC |
http://dx.doi.org/10.1038/s41598-019-52751-z | DOI Listing |
RSC Adv
January 2025
National and Local Joint Engineering Research Center of Advanced Packaging Material Research and Development Technology, School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou 412007 Hunan China
To further improve the performance of PA66 and expand its applications, a new strategy was proposed to introduce an alicyclic structure into PA66 chain by the copolymerization method. Initially, 3,3'-dimethyl-4,4'-diaminodicyclohexylmethane (MACM) was reacted with 1,6-adipic acid to form MACM6 salt, and then, it was copolymerized with PA66 salt to synthesize PA66/MACM6 copolymers with alicyclic structures. PA66/MACM6 copolymers exhibited good thermal stabilities, and the presence of alicyclic structure had no significant effect on their thermal stabilities.
View Article and Find Full Text PDFPhytomedicine
January 2025
College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin Province, China. Electronic address:
Background: Patients with cancer undergoing cisplatin chemotherapy frequently experience cardiotoxic side effects that significantly affect their prognosis and survival rates. Our study found that Panax ginseng root extract exerted a significant protective effect against cisplatin-induced myocardial cell injury.
Purpose: The present study aims to elucidate the underlying mechanisms by which the bioactive components of Panax ginseng mitigate cisplatin-induced cardiotoxicity (CIC).
Wave-absorbing honeycombs have garnered widespread attention due to their high-efficiency absorption, ultra-wideband absorption, lightweight nature, and high load-carrying capacity. However, as electromagnetic radiation power increases, the temperature of the absorbing honeycomb increases rapidly, even leading to burning. Therefore, it is significant to possess an efficient and accurate assessment of the thermal effects of absorbing honeycombs under electromagnetic radiation.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Leibniz-Institut fur Festkorper- und Werkstoffforschung Dresden eV, Helmholtzstraße 20, 01069, Dresden, GERMANY.
This study presents the first successful demonstration of growing elemental bismuth (Bi) thin films via thermal atomic layer deposition (ALD) using Bi(NMe2)3 as the precursor and Sb(SiMe3)3 as the co-reactant. The films were deposited at a relatively low temperature of 100 °C, with a growth per cycle (GPC) of 0.31-0.
View Article and Find Full Text PDFWorld J Gastrointest Surg
January 2025
Department of Hepatopancreatobiliary Surgery, Chongqing General Hospital, Chongqing 401147, China.
Microwave ablation (MWA) is emerging as a highly effective treatment for colorectal liver metastases (CRLMs). This review explores the advantages of MWA compared to other ablative techniques such as radiofrequency ablation and cryoablation and highlights its clinical efficacy, safety, and technical considerations. MWA offers significant benefits, including higher intratumoral temperatures, larger ablation zones, and reduced susceptibility to the heat-sink effect, which make it particularly suitable for tumors near large blood vessels.
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