نتایج جستجو برای: modified poly ethylene terephthalate

تعداد نتایج: 352766  

2013
M. H. Vakili M. Haghshenas Fard

Chemical recycling of Polyethylene terephthalate, PET, wastage has been investigated in this study. The aim of this work is recovery of terephthalic acid and ethylene glycols from PET waste. This process has been done in two stages. At the first stage, reaction between PET waste and sodium hydroxide for production of ethylene glycol and sodium terephthalate solution carried out in a stainless s...

2011
Sheng Chu Dongdong Li Pai-Chun Chang Jia G Lu

Flexible dye-sensitized solar cells are fabricated using vertically aligned ZnO nanowire arrays that are transferred onto ITO-coated poly(ethylene terephthalate) substrates using a simple peel-off process. The solar cells demonstrate an energy conversion efficiency of 0.44% with good bending tolerance. This technique paves a new route for building large-scale cost-effective flexible photovoltai...

2010
V. Gulati P. Tandon

A CAD paradigm is presented to produce blow moulds for Poly Ethylene Terephthalate (PET) bottles decorated with ornamental patterns. This work integrates design and manufacturing of decorated blow moulds which, in turn, are utilized to blow PET bottles. The parametric geometric modeling techniques are employed to customize a CAD system, tailoring to suit the requirements of the bottle making in...

Journal: :Environmental science. Nano 2021

This work aims to establish a production and characterization protocol for fluorescent plastic nanoparticles of poly(ethylene terephthalate) (PET), polypropylene (PP), polystyrene (PS) that can be tracked in biological environments.

Journal: :Science 2016
Shosuke Yoshida Kazumi Hiraga Toshihiko Takehana Ikuo Taniguchi Hironao Yamaji Yasuhito Maeda Kiyotsuna Toyohara Kenji Miyamoto Yoshiharu Kimura Kohei Oda

Yang et al suggest that the use of low-crystallinity poly(ethylene terephthalate) (PET) exaggerates our results. However, the primary focus of our study was identifying an organism capable of the biological degradation and assimilation of PET, regardless of its crystallinity. We provide additional PET depolymerization data that further support several other lines of data showing PET assimilatio...

Journal: :Biotechnology and bioengineering 2001
H G Park H N Chang J S Dordick

A chemoenzymatic approach was developed to prepare sucrose-containing aromatic polymers. The protease from Bacillus licheniformis catalyzed the transesterification of sucrose with a diester of terephthalic acid in pyridine to give the mono- and diester products. At 45 degrees C, >70% of sucrose was consumed after 1 day and sucrose diester began to form after 6 days when >95% of sucrose had been...

Journal: :Communications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering 1988

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