Results 21 to 30 of about 7,088 (199)

Depolymerization of Waste Plastic Using Bubble Column for Nano Alumina Blended Coating

Fluids, 2022
In this study, we aimed to figure out how the depolymerization of polyethylene terephthalate produces monomers, dimers, trimers, and other oligomers of bis (2-hydroxyethyl) terephthalate.
Mohammed Alzuhairi, Hanaa Al-Kaisy, Mena Khdheer   +2 more
doaj   +1 more source

Coexistence of specialist and generalist species within mixed plastic derivative-utilizing microbial communities

Microbiome, 2023
Background Plastic-degrading microbial isolates offer great potential to degrade, transform, and upcycle plastic waste. Tandem chemical and biological processing of plastic wastes has been shown to substantially increase the rates of plastic degradation;
Laura Schaerer, Lindsay Putman, Isaac Bigcraft, Emma Byrne, Daniel Kulas, Ali Zolghadr, Sulihat Aloba, Rebecca Ong, David Shonnard, Stephen Techtmann   +9 more
doaj   +1 more source

PET glycolysis optimization using ionic liquid [Bmin]ZnCl3 as catalyst and kinetic evaluation

Polímeros, 2018
In the present work, the depolymerization of polyethylene terephthalate (PET) was performed by the method of glycolysis with ethylene glycol. The process was carried out using a factorial design in the Box-Behnken optimization model, using a response ...
Carlos Vinícius Guimarães Silva, Eloi Alves da Silva Filho, Fabrício Uliana, Luciana Fernanda Rangel de Jesus, Carlos Vital Paixão de Melo, Rosangela Cristina Barthus, José Guilherme Aquino Rodrigues, Gabriela Vanini   +7 more
doaj   +1 more source

Study of structural and qualitative changes in polyethylene terephthalate glycol with inclusions of recycled polyethylene terephthalate glycol

Technical sciences and technologies
The article presents the results of a comprehensive experimental study examining the influence of primary PET-G and secondary rPET-G on the structural formation, optical transparency, and overall quality of polymer samples produced through extrusion. Six experimental series were conducted with recycled material content ranging from 5% to 30%.
Ihor Petrenko, Timur Hanieiev, Maksym Bolotov, Mykyta Stetsenko   +3 more
openaire   +3 more sources

Comparison of Optical Properties of Clear Aligners Before and After In-vivo Aging [PDF]

Journal of Clinical and Diagnostic Research, 2022
Introduction: There is a rising demand for clear aligners among orthodontic patients and after the expiry of invisalign patent many indigenous aligners have been introduced in several part of the globe including India.
Binu Punnoose Gold, Sangeetha Duraisamy, Ravi Kannan   +2 more
doaj   +1 more source

Mechanical and thermal properties of eco-friendly coating obtained from products of waste polyethylene terephthalate

Zaštita Materijala, 2018
The technology used in creating coatings is very important for the environmental science field. Regarless to the available types of raw materials, new methods of combining materials or the evolution of traditional technologies, coatings provide a range ...
Mirjana Jovičić, Vesna Teofilović, Jelena Pavličević, Oskar Bera, Tamara Erceg, Dragan Govedarica, Simendić Jaroslava Budinski   +6 more
doaj   +1 more source

A Curved Microstrip Patch Antenna Designed From Transparent Conductive Films

IEEE Access, 2023
Transparent microstrip patch antennas suffer from low radiation efficiency and gain when manufactured using transparent conductive films (TCFs), mainly at low frequency (starting from the microwave S band).
Giorgio Montisci, Giovanna Mura, Giacomo Muntoni, Giovanni Andrea Casula, Francesco Paolo Chietera, Mahmoud Aburish-Hmidat   +5 more
doaj   +1 more source

Effect of PET Resin as Cement Substitute on Properties of Cement Mortar Subjected to Different During Conditions

U.Porto Journal of Engineering, 2023
Polyethylene terephthalate (PET) has many advantageous properties required for the packaging industry. However, the safe disposal of PET waste is an environmental challenge.
Satish Waysal, Yogesh Patil, Bharatkumar Dholakiya   +2 more
doaj   +1 more source

Reactive Extrusion of Polyethylene Terephthalate Waste and Investigation of Its Thermal and Mechanical Properties after Treatment

International Journal of Chemical Engineering, 2017
This study investigates treating polyethylene terephthalate (PET) waste water bottles with different mass of ethylene glycol (EG) using reactive extrusion technique at a temperature of 260°C. The study puts emphases on evaluating the thermal, mechanical,
Mahmoud A. Mohsin, Tahir Abdulrehman, Yousef Haik   +2 more
doaj   +1 more source

Small-Scale Static Fire Tests of 3D Printing Hybrid Rocket Fuel Grains Produced from Different Materials

Aerospace, 2019
The last decade has seen an almost exponential increase in the number of rocket launches for sounding missions or for delivering payloads into low Earth orbits.
Mitchell McFarland, Elsa Antunes
doaj   +1 more source