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Author publications

Laurenţia Alexandrescu

6 linked publication records · National Research & Development Institute for Textiles and Leather; China Leather and Footwear Industry Research Institute

Author: Laurenţia Alexandrescuclear all
Showing 1-6 of 6 records
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SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2023, Nano, Bio, Green and Space: Technologies for a Sustainable Future, Vol. 23, Issue 6.1
Publication

-GREEN- DYNAMICALLY VULCANIZED THERMOPLASTIC POLYMER COMPOSITES BASED ON PE/PE-G-MA/EPDM REINFORCED WITH FUNCTIONALIZED SEASHELL WASTE

(STEF92 Technology, 2023-10-01, Laurenţia Alexandrescu, Mihai Georgescu, Maria Sönmez, Mihaela Niţuică, Dana Gurău)

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Environmental concerns related to the implementation of circular economy has led to the development of new generations of materials. Interest in polymer composites reinforced with natural-organic/inorganic fillers is growing. Producers of polymer composites convert their production to optimize and replace traditional products with new ones with a high content of bio, recyclable materials, for sustainability and responsible actions. Research and industrial awareness are focused on ecological composites based on nat...

Micro and Nano Technologies2023
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2023, Ecology, Economics, Education and Legislation, Vol. 23, Issue 5.1
Publication

ENVIRONMENT IMPACT OF ECO-ENGINEERED VERSUS CONVENTIONAL FOOTWEAR

(STEF92 Technology, 2023-10-01, Mirela Pantazi-Bajenaru, Mihai Georgescu, Laurentia Alexandrescu, Traian Foiasi)

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The objective of the circular economy is to definitively change the way in which we produce and consume, it consists of doing more with less, and it brings us back to simplicity, trying to break the dependence: production-consumption of raw materials, making the most of each material and extending its useful life. Through eco-design, it seeks to generate circular products that allow the easy separation of all materials, providing new ways of their management and processing to avoid elimination at the end of their ...

Ecology and Environmental Protection2023
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Nano, Bio, Green and Space - Technologies For a Sustainable Future, VOL 22, ISSUE 6.2
Publication

POLYAMIDE WASTE/ POLYSTYRENE/ CARBON FIBRES NANOCOMPOSITES: OBTAINING AND CHARACTERIZATION

(STEF92 Technology, 2022-12-27, Laurenţia Alexandrescu, Mihai Georgescu, Maria Sönmez, Anton Ficai)

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In this paper were obtained waste/polymeric nanocomposites - polyamide waste (PAW) and polystyrene (PS), compatibilized with maleic anhydride grafted polystyrene, and reinforced with carbon nanofibers (CF). PolyamideWaste / polystyrene (PAW / PS) composites are studied because both components are relatively cheap, with beneficial properties, and can be processed by injection. Compatibility of polymer and waste compounds can be achieved by adding a grafted copolymer, the segments of which have physical or chemical ...

Micro and Nano Technologies2022
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Nano, Bio, Green and Space: Technologies for Sustainable Future
Publication

ANTIBACTERIAL POLYMERIC NANOCOMPOSITES BASED ON PETr AND FUNCTIONALIZED ZnO NANOPARTICLES WITH APPLICATION IN THE FOOD INDUSTRIES

(STEF92 Technology, 2019-06-20, Laurenţia Alexandrescu)

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The purpose of the paper is to obtain a new composite material based on chemically functionalized nanoparticles dispersed in plastomer matrix. The dispersion of the ZnO nanoparticles in a plastomer matrix (PETr) leads to a high-performance polymeric material with multi-functional, antibacterial, and plastomer-specific processing properties. In this paper, elastomeric nanocompound materials were selected, due to performance properties such as: antimicrobial, resistance to aggressive chemical agents, mechanical prop...

Micro and Nano Technologies2019
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

POLYMER NANOCOMPOSITES OF POLYAMIDE/POLYETHYLENE/ FUNCTIONALIZED CARBON FIBRES

(STEF92 Technology, 2018-06-20, Laurenţia Alexandrescu)

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In this paper, combined effects of carbon fibres treatment and compatibilizer polymers (PE-g-MA) on the structure and properties of PA/PE/PE-g-MA/ functionalized carbon fibres composites were studied. The optimum formulation was used to prepare a series of nanocomposites under different technological conditions. Also, a correlation between their physico-mechanical properties and IR spectra (ATR technique) was proposed. The carbon fibres functionalisation consisted in oxidizing the nanoparticles with oxidant mixtur...

Micro and Nano Technologies2018
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

POLYMER NANOCOMPOSITES POLYAMIDE / OXIDIZED GRAPHITE NANOPARTICLES

(STEF92 Technology, 2017-06-20, Laurentia Alexandrescu, Maria Sonmez, Anton Ficai, Roxana Trusca, PhS. Ligian Tudoroiu)

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Nanocomposites have been considered as a stimulating route for creating a new type of high performance material that combines the advantages of polymer and the nanoparticles. Polyamide is well known as an engineering thermoplastic material that is widely used in industrial applications for its good mechanical and thermal properties. The paper presents the study of the new nanostructured polymer composites from polyamide/oxidized graphite nanoparticles-PA/GO to manufacture, by injection, bearing seals, contact plat...

Micro and Nano Technologies2017
Showing 1-6 of 6 records
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