نتایج جستجو برای: polyethylene terephthalate pet

تعداد نتایج: 82789  

Oils extracted from plants have been used since ancient times and in many cultures .frying oils are used in many countries all around the world including Iran. Therefore it is of great importance to ensure the safety of these food products which are usually delivered in polyethylene terephthalate (PET) bottles. This study has investigated the effect of storage time and temperature on the migrat...

Oils extracted from plants have been used since ancient times and in many cultures .frying oils are used in many countries all around the world including Iran. Therefore it is of great importance to ensure the safety of these food products which are usually delivered in polyethylene terephthalate (PET) bottles. This study has investigated the effect of storage time and temperature on the migrat...

Journal: :Environmental science & technology 2013
Chelsea M Rochman Carlos Manzano Brian T Hentschel Staci L Massey Simonich Eunha Hoh

Polycyclic aromatic hydrocarbons (PAHs) on virgin polystyrene (PS) and PS marine debris led us to examine PS as a source and sink for PAHs in the marine environment. At two locations in San Diego Bay, we measured sorption of PAHs to PS pellets, sampling at 0, 1, 3, 6, 9, and 12 months. We detected 25 PAHs using a new analytical method with comprehensive two-dimensional gas chromatography couple...

2009
M. Voinea E. Purghel A. Duta

The influence of different additives: high density polyethylene (HDPE), low density polyethylene (LDPE) and TiO2 nanoparticles on the polyethylene terephthalate (PET)–rubber nanocomposite interface was investigated. The composites obtained by compression moulding from tire rubber and PET bottles’ waste were partially heterogeneous and partially compatible, as confirmed by the FTIRmeasurements. ...

Journal: :Fizika tverdogo tela 2022

This paper describes carrier transport mechanisms in polyethylene terephthalate (PET) films and porous PET-based membranes (PMs) obtained by irradiating pristine PET film with swift heavy ions, subsequent chemical etching an alkali (NaOH) solution. The PMs had through nanochannels (pores) average diameter of 720-750 nm. We observed that the temperature range 240-300 K, current-voltage character...

Journal: :Journal of food science and technology 2015
Hyun-Joo Kim Dinesh D Jayasena Hae In Yong Amali U Alahakoon Sanghoo Park Jooyoung Park Wonho Choe Cheorun Jo

Bacterial biofilms are associated with numerous infections and problems in the health care and food industries. The aim of this study was to evaluate the bactericidal effect of an atmospheric pressure plasma (APP) jet on Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella Typhimurium biofilm formation on collagen casing (CC), polypropylene (PP) and polyethylene terephthalate (PET),...

2013
Yu. S. Akishev

The hydrophilicity ageing of polypropylene (PP) and polyethylene terephthalate (PET) films treated by nonthermal plasma usually takes over 150 days. In the present work, the accelerated ageing induced by hydrogen atoms and ultraviolet (UV) radiation with a wavelength of = 253.7 nm was studied. It was experimentally found that the hydrogen atoms restored the modified polymers to their original h...

Journal: :Chemistry 2011
Mika Shiramizu F Dean Toste

Polyethylene terephthalate (PET) is a polymeric material with high global demand. Conventionally, PET is produced from fossil-fuel-based materials. Herein, we explored the feasibility of a sustainable method for PET production by using solely bio-renewable resources. Specifically, 2,5-dimethylfuran (derived from lignocellulosic biomass through 5-(hydroxymethyl)furfural) and acrolein (produced f...

Journal: :SN applied sciences 2021

Abstract In Polyethylene terephthalate (PET) processing the raw materials are purified terephthalic acid (PTA), moderately (MTA), monoehalene glycol (MEG). The of PTA is very difficult and costly. For reducing percent we using different percentages MTA blend in PET processing. affected properties polyester melt spinning process. such as elongation, tenacity, molecular chain length, b-color IV, ...

2011
E. P. Carneiro

Non-biodegradable plastic aggregates made of polyethylene terephthalate (PET) waste from beverage containers are used as partial replacement of natural aggregates in mortar. Various weight fractions of sand 5%, 10%, 15% and 20% are replaced by the same weight of plastic. This paper investigates the mechanical properties of the obtained composites. The main results of this study show the feasibi...

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