Results 51 to 60 of about 35,486 (206)

The post-yield fracture of a ductile polymer film: Notch quality, essential work of fracture, crack tip opening displacement, and J-integral [PDF]

, 2017
Double edge notched tension (DENT) specimens of a polyethylene terephthalate (PET) film were tested in an universal testing machine, measuring the displacements and the ligament lengths with a digital image correlation (DIC) system.
Arencón Osuna, David, León Albiter, Noel, Martínez Benasat, Antonio, Sánchez Soto, Miguel   +3 more
core   +2 more sources

AMINOLYSIS OF POLY(ETHYLENE TEREPHTHALATE)

Sen'i Gakkaishi, 1975
Reactivities of amines and reaction regions in aminolysis of PET fibers were investigated by using various primary amines, ammonia, and hydrazine. Aminolysis occurs randomly and the reaction rate is decreased in the order of MA>HH>EA>n-PA>n-BA>EDA>AM>MEA>iso-BA>sec-BA.
Noboru Yamazaki, Hiroaki Tonami
openaire   +2 more sources

Synthesis and NMR characterization of aliphatic-aromatic copolyesters by reaction of poly(ethylene terephthalate) post-consumer and poly(ethylene adipate)

Química Nova, 2005
An aliphatic-aromatic copolyester of poly(ethylene terephthalate), PET, and poly(ethylene adipate), PEA, PET-co-PEA, was synthesized by the high temperature melt reaction of post-consumer PET and PEA. As observed by NMR spectroscopy, the reaction yielded
Alessandra F. Baldissera, Carlos E. S. Valério, Nara. R. de S. Basso, Fernando Guaragna, Sandra Einloft, Martine Tessier, Alain Fradet   +6 more
doaj   +1 more source

Safety assessment of the process ‘PEGRA-V’, based on Starlinger IV+® technology, used to recycle post-consumer PET into food contact materials [PDF]

, 2017
Publisher ...
Bolognesi, Claudia, Castle, Laurence, Cravedi, Jean-Pierre, Croera, Cristina, Dudler, Vincent, Engel, Karl-Heinz, Fowler, Paul, Gontard, Nathalie, Grob, Konrad, Gürtler, Rainer, Husøy, Trine, Kärenlampi, Sirpa, Lampi, Eugenia, Mennes, Wim, Milana, Maria Rosaria, Nerin, Cristina, Panel on Food Contact Materials Enzymes, Flavourings and Processing Aids (CEF), Papaspyrides, Costantine, Penninks, André, Silano, Vittorio, Smith, Andrew, Tavares Poças, Maria de Fátima, Tlustos, Christina, Volk, Katharina, Wölfle, Detlef, Zorn, Holger, Zugravu, Corina-Aurelia   +26 more
core   +3 more sources

Synthesis of metal nanoparticles for use as nanocatalysts in pet recycling

Acta Scientiarum: Technology, 2019
This study investigated the efficiency of nickel nanocatalysts in the degree of PET conversion, under different conditions. The nanocatalysts were synthesized by the Pechini method at 500, 700 and 900ºC. PET depolymerization, via chemical glycolysis, was
Luciana Cristina Soto Herek Rezende, Jean Halison de Oliveira, Vanessa Paola Miranda Zart, Murilo Pereira Moisés, Guilherme Piovezan Otto, Sílvia Luciana Fávaro   +5 more
doaj   +1 more source

Safety assessment of the process ‘EREMA Recycling (MPR, Basic and Advanced technologies)’, used to recycle post-consumer PET into food contact materials [PDF]

, 2017
Publisher ...
Bolognesi, Claudia, Castle, Laurence, Cravedi, Jean-Pierre, Dudler, Vincent, EFSA Panel on Food Contact Materials Enzymes, Flavourings and Processing Aids (CEF), Engel, Karl-Heinz, Fowler, Paul, Gontard, Nathalie, Grob, Konrad, Gürtler, Rainer, Husøy, Trine, Kärenlampi, Sirpa, Lampi, Eugenia, Lioupis, Alexandros, Mennes, Wim, Milana, Maria Rosaria, Nerin, Cristina, Papaspyrides, Constantine, Penninks, André, Silano, Vittorio, Smith, Andrew, Tavares Poças, Maria de Fátima, Tlustos, Christina, Wölfle, Detlef, Zorn, Holger, Zugravu, Corina-Aurelia   +25 more
core   +3 more sources

Recycling of Mixed Poly(Ethylene-terephthalate) and Poly(Lactic Acid)

MATEC Web of Conferences, 2019
Nowadays, PLA is increasingly used as a packaging material, therefore it may appear in the petrol-based polymer waste stream. However, with the today’s mechanical recycling technologies PLA and PET bottles cannot be easily or cheaply separated. Therefore,
Gere Daniel, Czigany Tibor
doaj   +1 more source

Transitions/relaxations in polyester adhesive/PET system [PDF]

, 2010
The correlations between the transitions and the dielectric relaxation processes of the oriented poly(ethylene terephthalate) (PET) pre-impregnated of the polyester thermoplastic adhesive have been investigated by differential scanning calorimetry (DSC ...
A Baldan, A Bernès, A Garton, A Xenopoulos, Alain Bernès, BF Mathot, Colette Lacabanne, DW Krevelen Van, E Bhoje Gowd, E Dargent, Elodie Carsalade, G Vigier, H Chen, HA Hristov, HH Song, J Bartos, J Menczel, J Ménégotto, JD Menczel, JL Thomason, K Schmidt-Rohr, M Kattan, MF Vallat, Michel Lafourcade, Michel Savignac, NS Murthy, P Slobodian, R Kressmann, S Havriliak, Sophie Perraud, SS Voyutskii, YM Boiko, YM Boiko, YM Boiko   +33 more
core   +2 more sources

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

Nature Communications, 2018
Poly(ethylene terephthalate) (PET) is a widely used plastic and its accumulation in the environment has become global problem. Here the authors report the crystal structure of a Ideonella sakaiensis PET-degrading enzyme and propose a molecular mechanism ...
Seongjoon Joo, In Jin Cho, Hogyun Seo, Hyeoncheol Francis Son, Hye-Young Sagong, Tae Joo Shin, So Young Choi, Sang Yup Lee, Kyung-Jin Kim   +8 more
doaj   +1 more source

Surface adsorption of gallic acid by poly ( ethylene terephthalate ) fibers grafted 2-hydroxy propyl methacrylate/ acrylamide [PDF]

شیمی کاربردی روز, 2017
In this study, the adsorption of gallic acid onto poly ( ethylene terephthalate ) fibers grafted 2-hydroxy propyl methacrylate and acrylamide as a new adsorbent has been achieved through batch technique.
ehsan fathi, fariborz azizinezhad, mohsen shabani   +2 more
doaj   +1 more source