Results 21 to 30 of about 28,325 (264)

Reactive melt processing of poly(ethylene terephthalate) waste into calcium terephthalate

eXPRESS Polymer Letters, 2021
Recycling of waste poly(ethylene terephthalate) (PET) has attracted much attention in recent years because of the pressure from the environment. However, the cost-effective conversion of waste PET into value-added products by ecofriendly methods remains ...
Y. Y. Li, D. G. Yao, M. Q. Ge
doaj   +1 more source

Effects of Polyethylene Terephthalate Fibre Reinforcement on Mechanical Properties of Concrete

Advances in Materials Science and Engineering, 2022
Cracked concrete is a problem due to several factors such as poor maintenance, insufficient reinforcement, or steel corrosion leading to crack propagation.
NZ Nkomo, LM Masu, PK Nziu
doaj   +1 more source

Building a Deposit–Refund System (DRS) for Closed-Loop Recycling of Water Bottles in the United Arab Emirates

Recycling, 2023
Water bottles are widely used in the Gulf countries. One estimate indicates that the water bottle usage in the United Arab Emirates (UAE) may reach up to 250 L of water per person annually.
Wisam Abu Jadayil, Eman Aqil
doaj   +1 more source

Structural basis of terephthalate recognition by solute binding protein TphC

Nature Communications, 2021
The presence of the gene encoding the solute binding protein TphC has been shown to permit the uptake of terephthalate (TPA), which is the breakdown product of Polyethylene terephthalate (PET) plastic.
Trishnamoni Gautom, Dharmendra Dheeman, Colin Levy, Thomas Butterfield, Guadalupe Alvarez Gonzalez, Philip Le Roy, Lewis Caiger, Karl Fisher, Linus Johannissen, Neil Dixon   +9 more
doaj   +1 more source

Efficient catalytic conversion of polyethylene terephthalate to dimethyl terephthalate over mesoporous Beta zeolite supported zinc oxide

Carbon Future
Methanolysis of polyethylene terephthalate to dimethyl terephthalate is a sustainable route for recycling of polyethylene terephthalate (PET) plastic. Herein, we demonstrate that mesoporous Beta zeolite supported zinc oxide (Zn-Beta-meso) is efficient ...
Xiaoxue Mu, Dongquan Lin, Jian Zhang, Xiaoyuan Qin, Jianbin Huang, Feng-Shou Xiao   +5 more
doaj   +1 more source

Engineering Microbes to Bio-Upcycle Polyethylene Terephthalate

Frontiers in Bioengineering and Biotechnology, 2021
Polyethylene terephthalate (PET) is globally the largest produced aromatic polyester with an annual production exceeding 50 million metric tons. PET can be mechanically and chemically recycled; however, the extra costs in chemical recycling are not ...
Lakshika Dissanayake, Lahiru N. Jayakody, Lahiru N. Jayakody   +2 more
doaj   +1 more source

Use of Digital Image Correlation in Predicting Mechanical Properties of Parts Made by Additive Manufacturing

Acta Technologica Agriculturae, 2023
The publication is focused on the anisotropic properties of products of additive manufacturing using a Fused Filament Fabrication technology (FFF). Five different materials used in technical practice were tested. These materials are PLA (polylactic acid),
Pernica Jakub, Gajdaczek Tomáš, Černý Pavel, Dostal Petr, Brabec Martin, Korenko Maroš   +5 more
doaj   +1 more source

Evaluation of wetting, structural and thermal properties of electrospun nanofibers at different pineapple leaf fiber / polyethylene terephthalate ratios

Maderas: Ciencia y Tecnología, 2021
In this study, pineapple leaf fiber and polyethylene terephthalate electrospun nanofibers were produced via electrospinning process. Six ratios of pineapple leaf fiber/polyethylene terephthalate, namely 1/10; 1/7,5; 1/5; 1/1 and 1,3/1 were prepared and ...
Fatimah Muyassarah Abdul Aziz, Siti Norasmah Surip, Khairunnadim Ahmad Sekak, Mohd Khairun Anwar Uyup, Mou'ad Ahmad Tarawneh, Seng Hua Lee   +5 more
doaj  

Effects of Packaging Materials on Structural and Simulated Digestive Characteristics of Walnut Protein during Accelerated Storage

Foods, 2023
Walnuts are rich in fat and proteins that become oxidized during the processing and storage conditions of their kernels. In this study, the effect of three packaging materials (e.g., polyethylene sealed packaging, polyamide/polyethylene vacuum packaging,
Miaomiao Han, Jinjin Zhao, Qingzhi Wu, Xiaoying Mao, Jian Zhang   +4 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source