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Wyszukujesz frazę "bioplastics" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Preliminary Investigation of Bioplastics from Durian Seed Starch Recovery Using PEG 400 for Reducing Marine Debris
Autorzy:
Apriani, Mirna
Cahyono, Luqman
Utomo, Agung Prasetyo
Nugraha, Anggara Trisna
Alfira, Dwi Cahya Ningrum
Powiązania:
https://bibliotekanauki.pl/articles/2026725.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
bioplastics
durian
seed
PEG
intact
Opis:
Plastic is a source of pollution both on land and sea that can disrupt balance of the ecosystem. The characteristic of plastic as a material is difficult to decompose causing problems for environment. Various research needed to produce bioplastics that easily biodegradable in about 60 days. Biodegradable plastics are made from organic materials in the form of starch. Durian seed starch is one of the potential raw materials that can be used as bioplastics. Durian fruit is one of the typical fruits in Indonesia, at present seeds of durian had not been used as raw materials to produce object with economic values. It is necessary to combine the processing of durian seeds through a recovery approach in the form of processing into bioplastics. The aim of study is to analyze the effect of adding PEG 400 as a plasticizer plus calcium carbonate as a solidifier. Tests were carried out on swelling ability, acid and base resistance, tensile strength and biodegradation. The variation of the addition of PEG 400 is 4%; 30%; 50% and 70% were carried out to analyze the effect of different concentrations of plasticizers. None of the tensile test results met SNI 7188-11:2018 but all variations had biodegradation values according to SNI 7188-11:2018. Swelling test resulted from 4% and 30% are 1.2% and 2.1% respectively.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 12-17
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Bioplastic Packaging from Tapioca Flour Modified with the Addition of Chitosan and Fish Bone Gelatin
Autorzy:
Susilawati, Susilawati
Rostini, Iis
Pratama, Rusky Intan
Rochima, Emma
Powiązania:
https://bibliotekanauki.pl/articles/1065256.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
biodegradability
bioplastics
chitosan
gelatin
modified tapioca
Opis:
This research aimed to characterize bioplastic packaging made from modified tapioca flour so that it has the best thickness, transparency, tensile strength, elasticity and biodegradability values. This research was conducted at the Laboratory of Fisheries Products Processing, Faculty of Fisheries and Marine Sciences, Padjadjaran University, Jatinangor, starting from February-April 2019. Bioplastic were tested namely bioplastic in four treatments and three repeat with the addition of chitosan (K) and gelatin (G) concentrations, namely treatment A (2% K, 5% G), B (3% K, 10% G), C ( 4% K, 15% G), and D (4% K, 20% G). The data obtained were analyzed using a comparative descriptive method. The parameters observed included thickness, transparency, tensile strength, percent elongation, and biodegradability. Thickness testing with measurement methods at 5 different spots using a digital screw micrometer. Transparency testing was done by the method of inserting a sample in the spectrophotometer and the absorbance value was determined. Tensile strength and elongation tests were carried out by the withdrawal method at both ends of the sample using the Instron tool. Testing the value of biodegradability was carried out using the soil burial test method. The best bioplastic packaging produced is using the addition of 2% chitosan and 5% gelatin concentration which is seen from the thickness parameter values of 0,072 mm, transparency value of bioplastic 2,09, the tensile strength of 19,05 MPa, percent elongation 28,333% and can be degraded by soil after 14 days about 99,84% based on Japanesse Industrial Standard (JIS).
Źródło:
World Scientific News; 2019, 135; 85-98
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decomposition of Single-use Products Made of Bioplastic under Real Conditions of Urban Composting Facility
Autorzy:
Báreková, Anna
Demovičová, Martina
Tátošová, Lucia
Danišová, Lucia
Medlenová, Elena
Hlaváčiková, Slávka
Powiązania:
https://bibliotekanauki.pl/articles/1839631.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
bioplastics
disintegration
compost
composting facility
single-use product
Opis:
According to Directive (EU) 2019/904 of the European Parliament and of the Council of 5 June 2019, single-use plastic cutlery, cotton buds, straws and stirrers will be banned in the member states of EU from summer 2021 onwards. Many of them are being replaced by compostable products. The aim of the research was to assess the biological disintegration of selected single-use products under real conditions of urban composting facility. All tested products are established for the Slovak market as 100% compostable by a composting facility. The eight selected products from five different producers were placed into a composting pile of the urban composting facility for 12 weeks. The samples were visually inspected on a regular basis. Temperature and humidity of the pile were continuously measured at the same time. Three samples from each kind of tested product were analyzed, 3 pieces of filter paper were used as the reference samples. The research showed that all tested products were completely or partially disintegrated during the considered period. The average degree of the disintegration of 90% was not reached for one producer only.
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 265-272
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioplastic packaging materials in circular economy
Materiały opakowaniowe z biotworzyw w gospodarce o obiegu zamkniętym
Autorzy:
Dobrucka, Renata
Powiązania:
https://bibliotekanauki.pl/articles/361651.pdf
Data publikacji:
2019
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
bioplastics
packaging materials
circular economy
biotworzywo
materiały opakowaniowe
gospodarka o obiegu zamkniętym
Opis:
Background: The European strategy for plastics focuses on adjusting the EU regulations to the fulfilment of circular economy tasks. Circular economy is an approach that will soon lead to considerable changes in numerous branches of modern economy. To a large extent, they will also affect the packaging industry. Methods: A particular interest has been attracted by aliphatic polyesters such as polylactide (PLA) and polyhydroxyalkanoates (PHA). This work presents the bioplastic market and the selected examples of the latest solutions in bioplastic packaging materials. In the near future, the presented bioplastics have a chance to become some of the most desirable packaging materials Results and conclusion: Bioplastics seem to be an alternative to conventional plastics used for packaging production. As the focus shifts to creation of sustainable environment and prevention of plastic waste disposal in the environment, the production of bioplastics has gained much attention due to their biodegradability.
Wstęp: Europejska strategia dotycząca tworzyw sztucznych skupia się na dostosowywaniu unijnych regulacji do realizacji zasad in circular economy. Circular economy to podejście, w ramach którego w niedługim czasie nastąpią znaczące zmiany w wielu gałęziach wspólczesnej gospodarki. Będą one dotyczyły w dużym stopniu branży opakowań. Metody: Duzym zaniteresowaniem cieszą się poliestry alifatyczne jakie jak polilaktyd (PLA) oraz polihydroksyalkaniany (PHA).W niniejszej pracy przedstawiono rynek biotworzyw oraz wybrane przykłady najnowszych rowiązań w zakresie materiałów opakowaniowych z biotworzyw. Przedstawione biotworzywa w niedalekiej przyszłości mają szansę stać się jednym z najbardziej poządanych materiałów opakowaniowych. Wyniki i podsumowanie: Biotworzywa wydają się być alternatywą dla konwencjonalnych tworzyw sztucznych stosowanych do produkcji opakowań. Aby stworzyć zrównoważone środowisko i zapobiec utylizacji odpadów tworzyw sztucznych w środowisku, produkcja biotworzyw zyskała wiele uwagi ze względu na ich podatność na biodegradację.
Źródło:
LogForum; 2019, 15, 1; 129-137
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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