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    Wyświetlanie 1-5 z 5
    Tytuł:
    Zrównoważone projektowanie opakowań z tworzyw sztucznych w gospodarce cyrkularnej
    Sustainability design of plastic packaging for the Circular Economy
    Autorzy:
    Czarnecka-Komorowska, Dorota
    Wiszumirska, Karolina
    Powiązania:
    https://bibliotekanauki.pl/articles/946975.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
    Tematy:
    eco-design
    opakowania
    tworzywa sztuczne
    zagospodarowanie
    recykling
    gospodarka cyrkularna
    packaging
    plastics
    recycling
    recyclability of packaging
    Circular Economy
    Opis:
    Przedstawiono współczesne problemy rynku opakowań z tworzyw sztucznych, wynikające ze zmian w ustawodawstwie Unii Europejskiej, wprowadzającym nowe podejście do gospodarki materiałami polimerowymi na każdym etapie ich cyklu życia. Opisano ideę Gospodarki o Obiegu Zamkniętym (GOZ, ang. Circular Economy) oraz rolę opakowań zrównoważonych w tym systemie. Przedstawiono najważniejsze zasady ekoprojektowania opakowań polimerowych w aspekcie ograniczenia powstawania odpadów i przydatności opakowań do odzysku na drodze recyklingu materiałowego. Ekoprojektowanie opakowań z tworzyw sztucznych ujęte w koncepcji Gospodarki o Obiegu Zamkniętym może wkrótce stać się istotnym czynnikiem przewagi konkurencyjnej w branży opakowaniowej.
    The article presents contemporary problems on the plastic packaging market, resulting from changes in the legislation of the European Union, introducing a new approach to the management of polymer materials at every stage of the life cycle. The idea of a Circular Economy (CE) has been described and issues related to packaging materials. Presented are the most important principles of eco-design of polymer packaging, in the aspect of reducing the formation of packaging waste and the suitability of packaging for recovery through material recycling. The eco-design of plastic packaging included in the Circular Economy concept may soon become a significant competitive advantage in the packaging industry.
    Źródło:
    Polimery; 2020, 65, 1; 8-17
    0032-2725
    Pojawia się w:
    Polimery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Films LDPE/LLDPE made from post – consumer plastics: processing, structure, mechanical properties
    Autorzy:
    Czarnecka-Komorowska, Dorota
    Wiszumirska, Karolina
    Garbacz, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/102074.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    polyethylene
    films
    recycling
    extrusion
    crystallinity
    FTIR
    mechanical properties
    polietylen
    filmy
    recykling
    wytłaczanie
    krystaliczność
    właściwości mechaniczne
    Opis:
    The paper presents the results of the investigation into the themo-mechanical, rheological and structural properties of films made from recycled polyethylenes in the “foil-to-foil” system, the comparative material were films made from primary raw materials. The films were prepared by melt mixing technique in a single screw extruder. Primary polyethylenes, recyclates and their blends were used. The aim of the research was to determine the quality of the materials derived from the closed process of the recycling of polyethylene film in comparison to virgin plastics. The mechanical properties of the films were measured by tensile test and puncture test. The morphology was studied using polarized light microscopy (POM) and FT-IR measurements. DSC and shrinkage were used to determine thermal behavior and the degree of crystallinity. The results showed that the obtained recycled blends rLDPE/rLLDPE are high-quality material with good processing properties susceptible to the production of thin films. Studies on the mechanical properties of the recycled blends showed an increase in tensile strength and elongation. An increase in the melting temperature and heat of fusion, as determined from DSC, was observed with an increase in the recycled blends. Puncture results demonstrated that the post-consumer recycled film was more strength than the film made from virgin plastics. Thus, these materials may serve as valuable recycled plastics useful for packaging applications.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 3; 134-142
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigating the Effect of Photo-Oxidative Degradation on the Ageing Resistance of the Car Mudflaps Manufactured with Post-Production High-Density Polyethylene Wastes
    Autorzy:
    Czarnecka-Komorowska, Dorota
    Swain, Chandra
    Kopeć, Bogdan
    Borowski, Jacek
    Garbacz, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2201788.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    recycling
    crystallinity
    mechanical behavior
    ageing process
    carbonyl index
    mudflap
    polyethylene
    HDPE
    Opis:
    The paper presents the results of the ageing resistance of automotive mudflaps made of recycled polyethylene blends. The mudflaps were manufactured by a plastic sheet extrusion-calendaring process in Novotech Kostrzyn nad Odrą company. The changes of the mechanical properties in the tensile test and impact toughness test as well as in Shore hardness due to the accelerated aging process were characterized, taking into account the aging sensitivity coefficient (KI), and changes in the structure within the wavenumber range 4000-400 cm-1, taking into account the CI coefficient. The results showed a higher melting point and crystallinity for the recycled HDPE blends during photo-oxidative degradation. Moreover, the results presented decreased tensile strength and ductility, due to macromolecular chain scission caused by oxidation. It was found that the blends of HDPE based on recycled materials are more sensitive to the aging process than virgin HDPE. Finally, it can be concluded that the sensitivity to ageing blends increases with the increase of recycled HDPE content in the HDPE matrix.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 4; 38--47
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automated test bench for research on electrostatic separation in plastic recycling application
    Autorzy:
    Regulski, Roman
    Czarnecka-Komorowska, Dorota
    Jędryczka, Cezary
    Sędziak, Dariusz
    Rybarczyk, Dominik
    Netter, Krzysztof
    Barański, Mariusz
    Barczewski, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2090721.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    recycling
    automotive plastics waste
    separation
    electrostatic separator
    recykling
    odpady tworzyw sztucznych z samochodów
    separacja
    separator elektrostatyczny
    Opis:
    Many researchers in the developed countries have been intensively seeking effective methods of plastic recycling over the past years. Those techniques are necessary to protect our natural environment and save non-renewable resources. This paper presents the concept of an electrostatic separator designed as a test bench dedicated to the separation of mixed plastic waste from the automotive industry. According to the current policy of the European Union on the recycling process of the automotive industry, all these waste materials must be recycled further for re-entering into the life cycle (according to the circular economy). In this paper, the proposed concept and design of the test bench were offered the feasibility to conduct research and technological tests of the electrostatic separation process of mixed plastics. The designed test bench facilitated assessing the impact of positions of high-voltage electrodes, the value and polarity of the high voltage, the variable speed of feeders and drums, and also triboelectrification parameters (like time and intensity) on the process, among others. A specialized computer vision system has been proposed and developed to enable quick and reliable evaluation of the impact of process parameters on the efficiency of electrostatic separation. The preliminary results of the conducted tests indicated that the proposed innovative design of the research stand ensures high research potential, thanks to the high accuracy of mixed plastics in a short time. The results showed the significant impact of the corona electrode position and the value of the applied voltage on the separation process effectiveness. It can be concluded that the results confirmed the ability to determine optimally the values of the studied parameters, in terms of plastic separation effectiveness. This study showed that this concept of an electrostatic separator designed as a test bench dedicated for separation of mixed plastic waste can be widely applied in the recycling plastic industry.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136719, 1--11
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Automated test bench for research on electrostatic separation in plastic recycling application
    Autorzy:
    Regulski, Roman
    Czarnecka-Komorowska, Dorota
    Jędryczka, Cezary
    Sędziak, Dariusz
    Rybarczyk, Dominik
    Netter, Krzysztof
    Barański, Mariusz
    Barczewski, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2173591.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    recycling
    automotive plastics waste
    separation
    electrostatic separator
    recykling
    odpady tworzyw sztucznych z samochodów
    separacja
    separator elektrostatyczny
    Opis:
    Many researchers in the developed countries have been intensively seeking effective methods of plastic recycling over the past years. Those techniques are necessary to protect our natural environment and save non-renewable resources. This paper presents the concept of an electrostatic separator designed as a test bench dedicated to the separation of mixed plastic waste from the automotive industry. According to the current policy of the European Union on the recycling process of the automotive industry, all these waste materials must be recycled further for re-entering into the life cycle (according to the circular economy). In this paper, the proposed concept and design of the test bench were offered the feasibility to conduct research and technological tests of the electrostatic separation process of mixed plastics. The designed test bench facilitated assessing the impact of positions of high-voltage electrodes, the value and polarity of the high voltage, the variable speed of feeders and drums, and also triboelectrification parameters (like time and intensity) on the process, among others. A specialized computer vision system has been proposed and developed to enable quick and reliable evaluation of the impact of process parameters on the efficiency of electrostatic separation. The preliminary results of the conducted tests indicated that the proposed innovative design of the research stand ensures high research potential, thanks to the high accuracy of mixed plastics in a short time. The results showed the significant impact of the corona electrode position and the value of the applied voltage on the separation process effectiveness. It can be concluded that the results confirmed the ability to determine optimally the values of the studied parameters, in terms of plastic separation effectiveness. This study showed that this concept of an electrostatic separator designed as a test bench dedicated for separation of mixed plastic waste can be widely applied in the recycling plastic industry.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; art. no. e136719
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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