In this study, a nanocomposite based on a heterophasic polypropylene copolymer containing 5 wt% of nanoclays and 3 wt% of compatibilizer was formulated via melt compounding to obtain a material suitable for Fused Filament Fabrication (FFF) processing with enhanced flame-retardant properties. From rheological analyses, the nanocomposite showed an important increase in the non-Newtonian behavior, and, therefore, improved FFF printability compared to the pristine PP COPO. A filament with suitable characteristics for FFF was produced using a single-screw extruder and subsequently 3D printed. Finally, cone calorimeter and UL94 tests were carried out on both 3D-printed and compression-molded specimens. The obtained results showed that the 3D-printed samples exhibited even better flame-retardant properties than the compression-molded ones, thus demonstrating not only the possibility of successfully developing and using functionalized PP-based filaments in 3D printing but also the possibility of obtaining enhanced flame-retardant properties compared to conventional compression molding.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10974235 | PMC |
| http://dx.doi.org/10.3390/polym16060858 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Development of a Fire-Retardant and Sound-Insulating Composite Functional Sealant.
Materials (Basel)
December 2024
School of Materials Science and Engineering, Hainan University, Haikou 570228, China.
The use of traditional sealing materials in buildings poses a significant risk of fire and noise pollution. To address these issues, we propose a novel composite functional sealant designed to enhance fire safety and sound insulation. The sealant incorporates a unique four-component filler system consisting of carbon nanotubes (CNTs) decorated with layered double hydroxides (LDHs), ammonium dihydrogen phosphate (ADP), and artificial marble waste powder (AMWP), namely CLAA.
View Article and Find Full Text PDFFlame Retardancy and Heat Shielding in Green Polypropylene Composites Using Biohybrid Fibers and Agro-Waste Fillers.
ACS Appl Bio Mater
January 2025
Department of Mechanical Engineering, Changwon National University, Changwon, Gyeongsangnam 51140, South Korea.
The current work presents the flame-retardant performance of hybrid polypropylene composites, reinforced with specific short woven flax fabrics (SWFs), short basalt fibers (BFs), and rice husk powder (RHP), using polypropylene grafted maleic anhydride (MAPP) as the coupling agent. Horizontal burning test (HBT), microcalorimeter test (MCT), and cone calorimeter test (CCT) were conducted on these composites. The formulations used were 25% SWF/PP, 25% SWF/20% BF/PP, and 25% SWF/20% BF/PP with 6% RHP and 25% SWF/20% BF/PP with varying RHP contents (6, 12, and 18%) in combination with 6% MAPP.
View Article and Find Full Text PDFPreparation of bio-based flame retardants by modification of cottonseed meal with polyphosphate and boric acid and its durability to cotton fiber.
Int J Biol Macromol
January 2025
College of Chemistry Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China.
The durability and flame retardancy of cotton fabrics have been the focus of long-term research. In this paper, a method for preparing flame retardants through the direct modification of biomass was proposed, and the durable flame retardant of homologous cottonseed meal modified biomass flame retardants for cotton fabrics was achieved through biomass composition analysis and modeling. In this study, a cottonseed meal-phosphoric acid-boric acid synergistic bio-based flame retardant (CPB) was synthesized and characterized.
View Article and Find Full Text PDFImpact of phosphorus on the functional properties of extracellular polymeric substances recovered from sludge.
Water Res
December 2024
Deptartment of Biotechnology, Delft University of Technology, Van der Maasweg 9, Delft, HZ 2629, the Netherlands; Department of Chemistry and Bioscience, Center for Microbial Communities, Aalborg University, Aalborg, Denmark.
Extracellular Polymeric Substances (EPS) are ubiquitous in biological wastewater treatment (WWT) technologies like activated sludge systems, biofilm reactors, and granular sludge systems. EPS recovery from sludge potentially offers a high-value material for the industry. It can be utilized as a coating in slow-release fertilizers, as a bio-stimulant, as a binding agent in building materials, for the production of flame retarding materials, and more.
View Article and Find Full Text PDFN-chlorination of urea-formaldehyde resin microspheres for antibacterial regenerated cellulose fibers.
Int J Biol Macromol
January 2025
Institute of Functional Textiles and Advanced Materials, College of Textiles & Clothing, Qingdao Key Laboratory of Flame-Retardant Textile Materials, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China. Electronic address:
Regenerated cellulose fibers are required for widespread antibacterial applications across various fields. N-halamines have been extensively studied and are regarded as a promising candidate for antibacterial purposes. In this work, we focus on investigating the chlorination performance of urea-formaldehyde resin microspheres (UFRs) and using them as antibacterial additives incorporated into the spinning dope to fabricate antibacterial viscose fibers.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!