Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Marius Marinel Stănescu"'
Publikováno v:
Polymers, Vol 14, Iss 15, p 3175 (2022)
Modern agriculture produces a very large amount of agricultural waste that remains unused. The use as a reinforcer of these renewable resources for the realization of composite materials, and the finding of useful industrial applications, constitutes
Externí odkaz:
https://doaj.org/article/78d08302f390409e9672311e126fd24d
Publikováno v:
Polymers, Vol 14, Iss 3, p 392 (2022)
The production of composite materials through the reuse of waste or by-products from the agri-food industry will be a challenge for environmental protection. This study focuses in that direction. In the first stage, composites were made with the hybr
Externí odkaz:
https://doaj.org/article/1bcaee0b35f44957832d3035f4c71144
Autor:
Marius Marinel Stănescu, Dumitru Bolcu
Publikováno v:
Polymers, Vol 12, Iss 8, p 1688 (2020)
When obtaining environment-friendly hybrid resins made of a blend of Dammar natural resin, in a prevailing volume ratio, with epoxy resin, it is challenging to find alternatives for synthetic resins. Composite materials reinforced with waste paper an
Externí odkaz:
https://doaj.org/article/904a77688976430e81a0e80b9332f293
Autor:
Dumitru Bolcu, Marius Marinel Stănescu
Publikováno v:
Polymers, Vol 12, Iss 8, p 1649 (2020)
The need to protect the environment has generated, in the past decade, a competition at the producers’ level to use, as much as possible, natural materials, which are biodegradable and compostable. This trend and the composite materials have underg
Externí odkaz:
https://doaj.org/article/98e6f81a18f343ec9b4c37a1225e9889
Autor:
Dumitru Bolcu, Marius Marinel Stănescu
Publikováno v:
Materials, Vol 12, Iss 8, p 1232 (2019)
As a result of manufacture, composite materials can appear to have variations to their properties due to the existence of structural changes. In this paper, we studied the influence of material irregularity on the mechanical behavior of two categorie
Externí odkaz:
https://doaj.org/article/03b6fa22c3484cb4b1ecabd9ad8c44bb
Autor:
Marius Marinel Stănescu, Dumitru Bolcu
Publikováno v:
Polymers, Vol 11, Iss 3, p 478 (2019)
The current composite materials must meet a double challenge, one that involves obtaining mechanical properties suitable to the field of activity in which they are used and another one, equally important, that requires that they be renewable. In this
Externí odkaz:
https://doaj.org/article/688cbd9f8a6046818d7e7cc97ad33949
Autor:
Maria Alexandra Ivan, Ion Ciuca, Victorita Stefanescu, Vlad Alexandru Georgeanu, Marius Marinel Stănescu, Robert Ciocoiu, Dumitru Bolcu
Publikováno v:
Materiale Plastice. 58:148-159
Great interest has been shown lately in bio-composite materials because they are inexpensive and sustainable. Composites with matrices and natural reinforcers have been little studied. Here, we study certain mechanical properties of composite materia
Autor:
Cosmin Mihai Miriţoiu, Alexandru Ioan Rădoi, Ionuţ Daniel Geonea, Marius Marinel Stănescu, Mihaela Liana Bogdan, Dumitru Bolcu
Publikováno v:
Advanced Engineering Forum. 42:24-29
The paper presents some researches about the dynamic mechanical properties for some green composites made as follows: the reinforcement is made from rush and bulrush and the matrix is from epoxy resin Resoltech 1050 with its hardener Resoltech 1055.
Autor:
Ion Ciuca, Vlad Alexandru Georgeanu, Marius Marinel Stănescu, Anca Alexandra Iordache Sabo, Mihaela Liana Bogdan, Dumitru Bolcu
Publikováno v:
Materiale Plastice. 58:47-56
The chemical composition of a hybrid resin made of natural Dammar resin and epoxy resin (along with the related hardener), in proportion of volume of 60 and 40%, respectively, was studied based on EDS analysis. The results of the study are presented
Autor:
Ion Ciuca, M. Heiko Franz, Marius Marinel Stănescu, Ion Neda, Dumitru Bolcu, Catalin V. Maftei
Publikováno v:
Polymer Bulletin. 78:2427-2438
Abstract More and more importance has been given lately to the use of environment-friendly materials. Natural resins of vegetal, animal or mineral origin are increasingly employed. This article studies the properties of hybrid composites, obtained by