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Showing 1 to 19 of 19 for “"Polyamide 6"”.
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Chain Extension of Polyamide-6 & Polyamide-6/Organoclay Nanocomposites. Control of thermal degradation of polyamide-6/organoclay nanocomposites during extrusion using a novel chain extender
Novel solutions to offset thermal degradation of polyamide-6 (PA-6) and organoclay (organically modified layered silicates) nanocomposites during melt compounding have been investigated. In this research, a novel chain extender (Joncryl ADR 3400) has been used to improve thermal stability of PA-6 …
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Synthesis of functionalized polyamide 6 by anionic ring-opening polymerization
… synthesis of thermally more stable fluorinated polyamide 6 having a hydrophobic surface; (ii) the synthesis of polyamides 6 bearing pendant cinnamoyl groups, which are thermo- and photoresponsivechromophore groups, and demonstrating their reversible crosslinking as well as improved …
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Synthesis and characterisation of polyamide 6 blends made by reactive extrusion
… twin-screw extruder for the preparation of polyamide 6. An optimised extruder screw and barrel configuration was used during reactive extrusion process to permit necessary feeding, mixing, devolatilising and pumping requirements. Various screw speeds and barrel temperature profiles were also …
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Magnetic polyamide 6 nanocomposites for increasing damage tolerance through self-healing of composite structures.
Self-healing materials have the ability to repeatedly repair damages that occur before complete failure of materials. The development of stimuli-responsive self-healing materials has been in demand recently for composite structures, since their failure is relatively uncertain and can result in …
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Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites.
… sustainable management of the waste in polyamide 6 (PA6) nanocomposite manufacture/fabrication. The formulation of different blends of PA6 nanocomposite materials from untreated, demulsifier treated and thermally treated drilling fluid and cuttings was successfully achieved. …
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Color masterbatches for polyamide 6 fibers. Optimization of compounding and spinning processes. Physical-chemical characterization of industrial products.
The objective of this work is the investigation of the industrial production process of the Color Masterbatches and of the parameters that influence the pigment dispersion into the polymer matrix. In particular, the project is focused on the production process optimization in order to increase the …
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Processing, structure and thermo-mechanical properties of reclaimed nanoclay, and its application in polyamide 6 and low-density polyethylene nanocomposites.
… both mechanical and thermal properties of polyamide 6 (PA6) and low-density polyethylene (LDPE)-based nanocomposites were manufactured through the process of melt compounding, followed by injection and compression moulding, with different amounts (wt%) of OBM fillers (OBMFs). The study on …
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An investigation of the failure mechanisms of thermoplastic composites at various rates of strain and temperatures
… The materials used were polypropylene and polyamide resins with glass fibres and talc as fillers. These materials were provided by PLASTAMID (pty) ltd. The injection moulded specimens of polypropylene, polyamide 6-6, 30% talc filled polypropylene, 30% short glass fibre reinforced …
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Micromechanical modeling of the toughening mechanisms in particle-modified semicrystalline polymers
… a series of micromechanical models. The case of polyamide-6 modified with spherical elastomeric particles was modeled. The finite element method was employed to conduct a parametric study on the deformation of these systems. It was found that the mechanical response and local modes of plastic …
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The sliding wear of polymers against steel
… (PETP), molybdenum disulphide filled polyamide 6 (PA6/MoS₂) and graphite filled poly(amide-imide) (P(A-I)/GR). Testing was carried out as a function of sliding velocity between 0.13 to 2.27 ms⁻¹, loads of 1, 3 and 5 MP a and counterface roughnesses which varied from 1 micrometre to …
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Thermal Degradation of PC and PA6 During Laser Transmission Welding (LTW)
… thermoplastic materials: polycarbonate (PC) and polyamide 6 (PA6). Each material was studied at two levels of CB. It is shown in this work that increasing the carbon black (CB) level from 0.05 to 0.2wt% has no significant effect on the thermal stability of PA6. However, it is observed that …
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Characterisation and plastic-degrading potential of plastisphere-associated microorganisms
… (linear low-density polyethylene [LLDPE], polyamide-6 [PA6], polyethylene terephthalate [PET] and polylactic acid [PLA]), that had been purposely inoculated in aquatic environments, and (i) compared the degradation potential of bacterial isolates, the (ii) influence plastic leachates have …
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Plasma-Enhanced Continuous Carbon Fibre-Reinforced Composites Manufactured from Recycled Thermoplastics
… utilised in multilayer film, were investigated: polyamide 6 (PA6)/polypropylene (PP) and PA6/linear low-density polyethylene (LLDPE). A die, consisting of a slot channel with a series of crests, was developed in this thesis to impregnate CF tows with thermoplastic blends. Static and crest …
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Abiotic and Biotic Polymer Degradation to Inform Sustainable Design
… degradation products and homologous series of polyamide-6 (PA6), polycaprolactone (PCL), and polylactic acid (PLA). Complementary experimental approaches (retention-time shifts across varied mobile phase pH, fragmentation analysis, and spectral matching) were essential to improve structure …
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COOLING THEORY FOR THERMOPLASTIC MATERIALS USED IN SCREW EXTRUSION ADDITIVE MANUFACTURING
… manufacturing, 40 wt% carbon fiber reinforced polyamide 6 (PA6) and 20 wt% carbon fiber reinforced acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), and polyetherimide (PEI) play a strategic role in most applications. In addition, the research offers a physical, mechanical and thermal …
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Generation of Multi-Scale Thermoplastic Composites for Use in Injection Molding and Fused Filament Fabrication
… exfoliated CNTs, and the thermoplastic matrix polyamide 6 (PA 6). The supercooling behavior of the TLCP and thermal stability of PA 6 are studied by applying the rheological methods of small amplitude oscillatory shear (SAOS). Multiple mixing histories with CNTs and processing temperature …
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Design, Processing, and Characterization of Nanocomposites
… of cellulose nanocrystals (CNCs) in polyamides, specifically polyamide 11 (PA 11) and polyamide 6 (PA 6), can result in a more sustainable material. However, unless polyamide nanocellulose composites can be produced at an industry scale, the use of traditional fillers like glass …
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Μορφολογικός, δομικός, θερμικός και διηλεκτρικός χαρακτηρισμός διαφασικών και τριφασικών νανοσύνθετων μήτρας πολυαμιδίου-6
… πληθώρα τεχνολογιών εφαρμογών. Το πολυαμίδιο-6 (Polyamide-6 (PA-6)), εμπορικά γνωστό και ως nylon-6, ανήκει στην κατηγορία των θερμοπλαστικών, ημικρυσταλλικών πολυμερών και χρησιμοποιείται ευρύτατα σε βιομηχανικό επίπεδο κυρίως λόγω των πολύ καλών μηχανικών και θερμικών ιδιοτήτων του. Ωστόσο η …
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Development of multifunctional polymer composites with self-healing capability
… matrix possessing self-healing properties using polyamide 6 (PA6), which is the most commonly utilized thermoplastic polymer in the production of thermoplastic composites. As there is a lack of systematic investigation on this particular research topic in the scientific literature, various …