Results 1 to 10 of about 163,511 (205)

Modification of Functionalized Polyethylene Terephthalates by Ultrasonic Synthesis of Silver Nanoparticles and Removal and Electrochemical Measurement of Methyl Orange Dye [PDF]

آب و فاضلاب, 2022
One of the most widely used polymers in the treatment and absorption of pollutants is polyethylene terephthalate, which optimizes their consumption and protects the environment by purifying water sources.
Hossein Heydari, Hossein Peyman, Hamideh Roshanfekr   +2 more
doaj   +1 more source

Calcification of Synthetic Vascular Grafts: A Systematic Review

EJVES Vascular Forum, 2023
Objective: Calcification of vascular grafts, including polyethylene terephthalate (PET) and expanded polytetrafluoroethylene (ePTFE) grafts may contribute to graft failure, but is under reported.
Anne Lejay, Bogdan Bratu, Salomé Kuntz, Nicole Neumann, Frederic Heim, Nabil Chakfé   +5 more
doaj   +1 more source

Harmful algae and pathogens on plastics in three mediterranean coastal lagoons

Heliyon, 2023
Plastic is now a pervasive pollutant in all marine ecosystems. The microplastics and macroplastic debris were studied in three French Mediterranean coastal lagoons (Prevost, Biguglia and Diana lagoons), displaying different environmental characteristics.
Vanina Pasqualini, Marie Garrido, Philippe Cecchi, Coralie Connès, Alain Couté, Maria El Rakwe, Maryvonne Henry, Dominique Hervio-Heath, Yann Quilichini, Jérémy Simonnet, Emmanuel Rinnert, Thomas Vitré, François Galgani   +12 more
doaj   +1 more source

Obtaining phthalate substituted post-consumer polyethylene terephthalate and its isothermal crystallization

Тонкие химические технологии, 2022
Objects. Due to the polymer waste accumulation, the search for new directions for their utilization is urgent. Chemical recycling methods are of considerable interest, which allow one to obtain the original monomers or change the compositions of the ...
K. A. Kirshanov, A. Yu. Gervald, R. V. Toms, A. N. Lobanov   +3 more
doaj   +1 more source

Challenges and problems of petrochemical companies’ use of secondary resources

Управление, 2022
The environmental agenda for the development of economic systems necessitates the formation of a market for secondary petrochemical products. A comparative analysis of the policies of sustainable development of petrochemical companies showed that the ...
T. M. Gainochenko, M. V. Gainochenko
doaj   +1 more source

RETRACTED: Fabrication of New Demulsifiers Employing the Waste Polyethylene Terephthalate and their Demulsification Efficiency for Heavy Crude Oil Emulsions

Molecules, 2021
Two novel amphiphilic polyethylene amine terephthalate have been prepared via the glycolsis of polyethylene terephthalate (PET). The product, bis (2-hydroxyethyl terephthalate) (BHET), was converted to the corresponding dialkyl halide, bis(2-chloroethyl)
Mahmood M. S. Abdullah, Hamad A. Al-Lohedan, Ayman M. Atta   +2 more
doaj   +1 more source

Risk Assessment of Phthalate Compounds in Bottled Water Consumed in Isfahan, Iran

Journal of Food Quality and Hazards Control, 2021
Background: Phthalates are main ingredients of polyethylene terephthalate (PET) bottles used for storage of water. These compounds can cause adverse effects on human health.
F. Esteki, H. Karimi, M. Moazeni, Z. Esfandiari, M. Zarean, H. Pourzamani   +5 more
doaj  

Identification and quantification of microplastics in surface water of a southwestern Mediterranean Bay (Al Hoceima, Morocco)

Waste Management Bulletin
In this study, we evaluated the pollution in Al Hoceima Bay (Southwestern Mediterranean, Morocco) by microplastics. Nine stations were investigated in 2019, 2020, and 2021, using the Manta net and the microplastics were identified and quantified with ...
Oumayma Bouadil, Mostapha Benomar, Hossain El Ouarghi, Moulay Abdelazize Aboulhassan, Samir Benbrahim   +4 more
doaj   +1 more source

The effect of bleaching agent on the compressive strength of orthodontic thermoplastic retainer materials

Dental Research Journal
Background: There is an increasing desire for teeth bleching after orthodontic treatment. Therefor, this study aims to evaluate the effect of carbamide peroxide 15% and thermocycling on the compressive strength of polyethylene terephthalate glycol (PETG)
Ailin Ehteshami
doaj   +1 more source

In Vitro Color Stability Assessment of Two Clear Aligner Types

Erbil Dental Journal
Background and Objective: Clear aligners, widely used in orthodontic treatment, are subject to various environmental stresses that can affect their performance and esthetics.
Heshou Himdad Jemal, Bayan Abdulla Hassan   +1 more
doaj   +1 more source