Temat: polymer-metal - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Badanie właściwości kompozytów PVC i odpadowej rudy cynku pod względem ekranowania pola elektromagnetycznego w.cz.
Shielding of high frequency electromagnetic waves by composites containing PVC and waste zinc ore
Autorzy:: Jakubas, A.
Jabłoński, P.
Bambynek, D.
Powiązania:: https://bibliotekanauki.pl/articles/268526.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
Tematy:: kompozyty
polimer-metal
ekranowanie
elektromagnetyczne materiały ekranujące
ruda cynku
polymer-metal
composites
electromagnetic shielding
shielding material
zinc ore
Opis:: W pracy przedstawiono wyniki badań właściwości ekranujących wykonanych kompozytów metalowo-polimerowych w zakresie fal elektromagnetycznych w.cz. Rozpatrywano kompozyty z udziałem materiałów odpadowych w postaci rudy cynku (PVC-xZn) w proporcjach od 10:90 do 20:80. W celach porównawczych przeprowadzono także badania kompozytu z udziałem żelaza (PVC-Fe) w proporcjach od 50:50 do 70:30. Stwierdzono, że sporządzone kompozyty wykorzystujące odpadową rudę cynku mają dobre właściwości ekranujące, a ponadto są one na podobnym poziomie co w przypadku kompozytu PVC-Fe. Pozwala to na wykonanie tańszego materiału ekranującego w postaci materiału odpadowego.
We tested the properties of metal-polymer composites with respect to shielding of high frequency electromagnetic fields. Composites containing waste zinc ore (PVC-xZn) in the ratio of 10:90 to 20:80 were considered. For comparison, we also tested 50:50 to 70:30 composites with iron (PVC-Fe). It has been found that the composites with waste zinc ore have relatively good shielding properties, at the level similar to the PVC-Fe composite, i.e. to 25-80% of the power of the incident electromagnetic wave. The results show that the waste zinc ore could be used as a component for new eco-innovative composites, which would be cheaper than with those with use of iron. Another advantage would be a new path for managing the waste zinc ore.
Źródło:: Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2017, 54; 90-91
1425-5766
2353-1290
Pojawia się w:: Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation of Wear Resistance of Functional Composite Polymeric Materials and Durability of Metal-Polymer Bearings
Autorzy:: Chernets, Myron
Świć, Antoni
Kornienko, Anatolii
Yurchuk, Alina
Powiązania:: https://bibliotekanauki.pl/articles/2201913.pdf
Data publikacji:: 2023
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: polyamides
wear resistance
composites
dry sliding friction
metal-polymer plain bearings
durability
Opis:: A method of tribological testing of models with such sliding friction using a simple pin-on-disc mechanism was presented. Wear resistance indicators of unfilled polyamides PA6, PA66 and composites based on polyamide PA6+30GF, PA6+30CF, PA6+MoS2, PA6 and oil coupled with steel C45 are determined. They, as polymeric materials with the property of self-lubrication, they are often used in metal-polymer dry friction bearings. Based on them, wear resistance characteristics of these polymeric materials at sliding friction are established. They are used as basic parameters for developed by authors mathematical model of material wear kinetics at sliding friction and analytical research method of metal-polymer sliding bearings research. For comparative assessment of wear resistance of the investigated polymeric materials, their wear resistance diagrams are constructed. Thef show the functional dependence of wear resistance on specific friction forces. It is proved that the wear resistance of materials nonlinearly depends on specific pressure, i.e., the specific friction forces. Qualitative and quantitative influence of the type and structure of fillers (which improve the tribological properties of the base polymer PA6) on their wear resistance has been established. The forecast estimation of durability of metal polymer bearings made of the specified polyamides by the author's method of calculation taking into account their various wear resistance, characteristics of elasticity and conditions of dry friction is carried out. The research results are presented graphically, which facilitates their understanding and analyses.
Źródło:: Advances in Science and Technology. Research Journal; 2023, 17, 2; 258--267
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Polymer Composites Used in Rapid Prototyping Technology
Autorzy:: Bulanda, Katarzyna
Oleksy, Mariusz
Oliwa, Rafał
Budzik, Grzegorz
Markowski, Tadeusz
Powiązania:: https://bibliotekanauki.pl/articles/175877.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: 3D printing
FDM
composites
metal nanofiller
polymer processing
Opis:: New materials and filaments dedicated to 3D printing were obtained using the fused deposition modeling method, and the properties of the produced materials were investigated. Polylactide was used as a polymer base for the assays because of the desired properties of the polymer, mainly biodegradability, and the matrix was refilled by the addition of metallic nanofillers, such as bronze, copper, brass, and steel. For the composites obtained, mechanical properties were investigated to determine the dependence of the obtained results on the content and type of filler used and on the method of fabrication of the fittings. It was found that the additives present in the polymer matrix increased the fluidity of the material. The best results were obtained for the compositions with bronze and steel in which the mass flow rate was 72.97 and 79.99 g/10 min, respectively. The filled material that had lower hardness was measured by Rockwell and the impact strength was measured by Charpy. In addition, it was found that injection-molded parts obtained much better mechanical properties than those obtained by 3D printing.
Źródło:: Advances in Manufacturing Science and Technology; 2020, 44, 1; 15-20
0137-4478
Pojawia się w:: Advances in Manufacturing Science and Technology
Dostawca treści:: Biblioteka Nauki

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