The paper describes the mechanical properties, determined on the basis of a tensile strength test of a composite material based on glass-fiber reinforced polyamide and obtained by Selective Laser Sintering-SLS. The material used is PA 3200 GF. Thin walled samples with non-standard nominal thicknesses of 1, 1.4 and 1.8 mm, manufactured in three printing directions X, Y and Z, were used. The description included the impact of printing direction on the geometry of the obtained samples and tensile strength as well as the dependency of tensile strength on the sample thickness. The results can be useful for design engineers and process engineers designing thin-walled components produced with SLS. Thin samples were obtained with a considerable deviation spread of the actual dimension from the nominal one. It was found that the tensile strength of thin samples is much lower than those of standard cross-sections, which should be taken into account in the design of thin-walled elements.
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http://dx.doi.org/10.3390/polym12122783 | DOI Listing |
Int J Biol Macromol
January 2025
Department of Food Engineering and Technology, Sant Longowal Institute of Engineering and Technology (SLIET), Longowal, 148106 Sangrur, Punjab, India. Electronic address:
In the present investigation, the formulation and thorough assessment of biodegradable composite films were conducted, utilizing pectin extracted from banana peel in conjunction with synthesized silver zeolite nanoparticles. The evaluation of physical properties, microstructural investigation, mechanical characteristics, and barrier properties was done providing valuable insights into various attributes of the film. The amalgamation of silver zeolite nanoparticles with the extracted pectin from banana peel results in biodegradable composite films exhibiting distinct physical, mechanical, barrier, and thermal properties.
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January 2025
College of food science and Pharmacy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China. Electronic address:
Environmental concerns stemming from the widespread use of polyethylene packaging and the perishability of fresh products have promoted the development of antimicrobial biodegradable packaging films in preservation of vegetables. In this study, antimicrobial films based on chitosan (CS)-nisin (Ni)-nanocrystalline cellulose (NCC) were characterized, and its preservation effect applied to baby cabbage was investigated. The results suggest that 1 % CS-0.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan 430070, People's Republic of China. Electronic address:
Recently, the widespread utilization of combustible materials has increased the risks associated with building fires. Early fire-warning systems represent a pivotal strategy in mitigating losses incurred from fire incidents and offer considerable potential for the enhancement of fire safety management. This study focuses on the synthesis of bio-based ionic hydrogels, specifically calcium alginate/polyacrylamide/glycerol/lithium bromide (CPG-L), as a novel fire sensor.
View Article and Find Full Text PDFEur J Pharm Biopharm
January 2025
Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; Research Center for Development of Local Lanna Rice and Rice Products, Chiang Mai University, Chiang Mai 50200, Thailand. Electronic address:
The development of a direct compression excipient with extended-release property is crucial for improving tablet manufacturing and drug delivery. This research focuses on developing a novel co-processed excipient composed of rice starch (RS), methylcellulose (MC), and colloidal silicon dioxide (CSD) using a wet granulation technique. The ratios of RS: MC (1.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 300457, China. Electronic address:
A multifunctional hydrogel with outstanding mechanical properties and excellent ionic conductivity holds immense potential for applications in various fields, such as healthcare monitoring, and various devices, such as wearable devices and flexible electronics. However, developing hydrogels that combine high mechanical strength with efficient electrical conductivity remains a considerable challenge. Herein, an ion-conductive hydrogel with excellent mechanical properties and ionic conductivity is successfully created.
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