Results 31 to 40 of about 19,042 (293)

New aromatic polyesterpolyols derived from PET industrial wastes [PDF]

, 2014
China hat den globalen Recycling-Markt letztes Jahr mit der Ankündigung geschockt, nicht länger niederwertige Qualitäten von rezyklierbaren Abfällen von ausländischen Exporteuren zu akzeptieren – die so genannte „Aktion Grüner Zaun“ startete zu Beginn ...
Dimitrov, Kiril, Herzog, Michael, Kornejew, Eckhart   +2 more
core   +1 more source

Modulation of release kinetics by plasma polymerization of ampicillin-loaded ß-TCP ceramics [PDF]

, 2016
Beta-tricalcium phosphate (ß-TCP) bioceramics are employed in bone repair surgery. Their local implantation in bone defects puts them in the limelight as potential materials for local drug delivery.
Avilés, Marc, Buxadera Palomero, Judit, Canal Barnils, Cristina, Ginebra Molins, Maria Pau, Labay, Cédric Pierre   +4 more
core   +2 more sources

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

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

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

Chemical recycling of poly(ethylene terephthalate). Application to the synthesis of multiblock copolyesters [PDF]

, 2014
The chemical recycling of the poly(ethylene terephthalate), (PET), has been successfully carried out by glycolysis in the presence of bis (2-hydroxyethyl) terephthalate (BHET) resulting in the formation of hydroxytelechelic oligomers.
A. El Mejjatti, A. Riahi, F. Malek, I. Bouabdallah, R. Khiari, T. Harit   +5 more
core   +1 more source

Bio-polyethylene Furanoate (Bio-PEF) from Lignocellulosic Biomass Adapted to the Circular Bioeconomy

BioResources, 2022
There is a global trend to replace the production of conventional recyclable plastics with biobased ones, allowing a sustainable alternative adapted to the current concept of a circular bioeconomy.
Carolina Mónica Mendieta, Giselle González, María Evangelina Vallejos, María Cristina Area   +3 more
doaj   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Modal response of hybrid raster orientation on material extrusion printed acrylonitrile butadiene styrene and polyethylene terephthalate glycol under thermo-mechanical loads

Polymer Testing, 2023
In this paper we look at Acrylonitrile Butadiene Styrene (ABS) and Polyethylene Terephthalate Glycol (PETG), chosen for their low cost, high strength and temperature resistance.
Mohammed Dukhi Almutairi, Taheer A. Mascarenhas, Sultan Saleh Alnahdi, Feiyang He, Muhammad A. Khan   +4 more
doaj   +1 more source

Structural insight into molecular mechanism of poly (ethylene terephthalate) degradation [PDF]

, 2018
Plastics, including poly(ethylene terephthalate) (PET), possess many desirable characteristics and thus are widely used in daily life. However, non-biodegradability, once thought to be an advantage offered by plastics, is causing major environmental ...
A Carniel, A Rauwerdink, A Vagin, AW SchuÈttelkopf, B Tang, BW Matthews, C Roth, C Silva, CM Rochman, D Ribitsch, DL Ollis, E Harder, E Herrero Acero, G Bianco, GM Morris, GN Murshudov, H Uchida, I Marshall, J Then, J Then, L Holm, M Barth, O Trott, P Emsley, R Kourist, R Wei, S Chen, S Kumar, S Yoshida, S Yoshida, SQ Le, SY Park, T Miyakawa, U Thumarat, UT Bornscheuer, V Sinha, Y Tokiwa, Y Yang, Z Otwinowski   +38 more
core   +2 more sources