Results 221 to 230 of about 114,109 (274)

Catalytic Pyrolysis of Poly(ethylene terephthalate) in the Presence of Metal Oxides for Aromatic Hydrocarbon Recovery Using Tandem μ-Reactor-GC/MS

Energy & Fuels, 2020
Poly(ethylene terephthalate) (PET) pyrolysis products and those produced from their subsequent catalytic reactions under various metal oxides (ZnO, MgO, TiO2, and ZrO2) were evaluated qualitatively...
S. Kumagai, Ryota Yamasaki, T. Kameda, Yuko Saito, Atsushi Watanabe, C. Watanabe, N. Teramae, T. Yoshioka   +7 more
semanticscholar   +1 more source

Annealing of poly (ethylene terephthalate)

European Polymer Journal, 2014
Abstract Poly (ethylene terephthalate), PET, crystallized isothermally at 234 °C has been annealed above the crystallization temperature in regimes II, below the onset of melting, and in regime III, in the range of observable melting [1] , [2] . The mechanism has been analyzed by differential scanning calorimetry and FTIR spectroscopy and shown to ...
Ziyu Chen, M.J. Jenkins, J.N. Hay
openaire   +1 more source

Photolysis of poly(ethylene terephthalate)

Journal of Polymer Science Part A-1: Polymer Chemistry, 1967
AbstractThe photolysis of poly(ethylene terephthalate) films was studied in vacuo with light of wavelengths 2537 and 3130 A. A very stable filter system which cuts out the 3025 A. line was developed to isolate 3130 A. from a mercury spectrum. Despite the fact that the penetration of 2537 A. light was limited to a depth of a ca. 103 A.
F. B. Marcotte, D. Campbell, J. A. Cleaveland, D. T. Turner   +3 more
openaire   +1 more source

Poly(ethylene terephthalate)

2009
Abstract Major Applications Fibers, films, barrier film, soft drink bottle (amorphous PET), film for compression molding PE, PP, and for replacement of commodity metals such as steel and aluminum (1–3). Copolymers of PET are proposed for use as fire retardants (4) and biodegradable films (5, 6).
openaire   +1 more source

The glycolysis of poly(ethylene terephthalate)

Journal of Applied Polymer Science, 1999
The experiments were carried out in excess ethylene glycol (EG) and poly(ethylene terephthalate) (PET) oligomer in the presence of zinc acetate as catalyst at 190°C. It was found that during the glycolysis reaction, the monomer and dimer were contained in the liquid phase.
Jong-Wu Chen, Leo-Wang Chen
openaire   +1 more source

Poly(ethylene terephthalate) fibres

1997
Poly(ethylene terephthalate), or PET, is the most outstanding member of the family of polyester fibres. Polyester is defined by the International Standards Organisation (ISO) as ‘a polymer comprising synthetic linear macromolecules having in the chain at least 85% (by mass) of an ester of a diol and terephthalic acid’ [1]. A comprehensive compendium on
V. B. Gupta, A. K. Mukherjee, S. S. Cameotra   +2 more
openaire   +1 more source

Hydrolyzable poly(ethylene terephthalate)

Journal of Environmental Polymer Degradation, 1994
Due to the enormous annual increase in the volume of municipal solid waste, society's attention is focused on how to manage the solid waste problem. Plastic materials not only contribute a great deal to the litter problem but also create serious danger to the ecology. Every year, countless birds, sea turtles, and other marine mammals die from eating or
Sherry Heidary, Bernard Gordon
openaire   +1 more source

Recycling of poly(ethylene terephthalate) by electrospinning to enhanced the filtration efficiency

Materials letters (General ed.), 2020
Poly(ethylene terephthalate) (PET) from domestic plastic waste was processed by electrospinning from solution hexafluoro-2-propanol/dichloromethane. The nanofibrous membrane with an average diameter of 95 ± 37 nm was prepared and filtration efficiency ...
Alena Opálková šišková, Jaroslava Frajová, M. Nosko   +2 more
semanticscholar   +1 more source

Nucleation in poly(ethylene terephthalate)

Acta Polymerica, 1982
AbstractMeasurements of isothermal crystallization kinetics of poly(ethylene terephthalate) including defined solid nucleating agents have been performed by DSC method in broad temperature range. Based on the results and knowledge of growth rate of spherulities in PETP the nucleation rates were calculated.
openaire   +1 more source

Multiblock Copolymers for Recycling Polyethylene-Poly(ethylene terephthalate) Mixed Waste.

ACS Applied Materials and Interfaces, 2020
Plastic pollution is one of the most pressing global environmental issues we face today, in part due to the continued rise in production and use of disposable plastic products.
Keiichiro Nomura, Xiayu Peng, H. Kim, Kailong Jin, Hee Joong Kim, Abigail F Bratton, C. R. Bond, Amelia E. Broman, K. Miller, Christopher J. Ellison   +9 more
semanticscholar   +1 more source