نتایج جستجو برای: polyethylene terephtalat pet fibers

تعداد نتایج: 151048  

2017
Ren Wei Wolfgang Zimmermann

Petroleum-based plastics have replaced many natural materials in their former applications. With their excellent properties, they have found widespread uses in almost every area of human life. However, the high recalcitrance of many synthetic plastics results in their long persistence in the environment, and the growing amount of plastic waste ending up in landfills and in the oceans has become...

2010
Maria Bolin Karl Svennersten Xiangjun Wang Ioannis S Chronakis Agneta Richter-Dahlfors Edwin Jager Magnus Berggren Agneta Richter Maria H. Bolin Ioannis S. Chronakis Edwin W. H. Jager

Electronically conductive and electrochemically active 3D-scaffolds based on electrospun poly(ethylene terephthalate) (PET) nano-fibers are reported. Vapour phase polymerization was employed to achieve an uniform and conformal coating of poly(3,4-ethylenedioxythiophone) doped with tosylate (PEDOT:tosylate) on the nano-fibers. The PEDOT coatings had a large impact on the wettability, turning the...

Journal: :Bioresource technology 2010
Yong Lei Qinglin Wu

High-melting-temperature poly(ethylene terephthalate) (PET) was successfully introduced into wood plastic composites through a two-step reactive extrusion technology. Wood flour was added into pre-prepared PET/high density polyethylene (HDPE) microfibrillar blends (MFBs) in the second extrusion at the temperature for processing HDPE. Addition of 25% in situ formed PET microfibers obviously incr...

2012
Farazila Yusof Mohd Hamdi Abdul Shukor

A series of laser joining experiments between polyethylene terephthalate (PET) and aluminium alloy (A5052) were conducted to investigate the effect of anodizing on A5052 surface on dissimilar materials used in joining. In this study, PET/A5052 joints with anodized A5052 surface exhibited greater shear strength compared to PET/A5052 joints without anodizing. The shear strength of the joints was ...

2013
Diego Betancourt Joaquin Castan

This paper introduces a flexible antenna, printed on a low-cost Polyethylene Terephtalate (PET) substrate for UHF applications. The RF characteristics of the PET substrate are examined using a microstrip resonator to characterize the substrate’s relative permittivity and the loss tangent at UHF band. The PET substrate is used to print an antenna designed to work in the 868 ISMBand. The printing...

Journal: :Scientific Reports 2021

Abstract Polyethylene terephthalate (PET) fibers and fabrics are widely used for medical device applications such as vascular anterior cruciate ligament prostheses. Several years ago, we began functionalizing PET using anionic polymers to enhance their biocompatibility, cell adhesion, proliferation functional performance Polymer functionalization followed a grafting-from process from virgin sur...

Journal: :Journal of Applied Polymer Science 2023

Abstract Liquid package board (LPB) packages typically have the smallest global warming potential compared to other solutions, but recycling of integrated plastic and aluminum fractions is still limited. In fiber process with some residual fibers are concentrated repulping reject (Polyal). This study investigates composition properties rejects from separately collected LPB packages. The were mo...

This study has investigated the creep properties of asphaltic concrete modified with different dosages of waste polyethylene terephthalate (PET) in two different ranges of size. Uniaxial dynamic creep test at 40°C was conducted on the cylindrical specimens of the mixtures. The load was applied in two different frequencies of 0.5 and 5Hz. Creep test results showed that the accumulated strain und...

2017
J. C. L. Hageman Robert J. Meier M. Heinemann R. A. de Groot

The Young modulus for crystalline polyethylene is calculated using ab initio molecular dynamics based on density functional theory in the local density approximation (DFT-LDA). This modulus, which can be seen as the ultimate value for the Young modulus of polyethylene fibers, is found to be 334 GPa. For the first time the modulus is evaluated ab initio (no bias from experimental data) with demo...

Journal: :Plant physiology 1980
N C Carpita D P Delmer

Detachment of the cotton fiber cell from the ovule results in loss of over 90% of the in vivo capacity for synthesis of [(14)C]cellulose from [(14)C]glucose. However, over 50% of the capacity for cellulose synthesis in the detached fiber population is protected when polyethylene glycol 4000 is present during detachment and incubation. Radioautography shows that approximately full capacity is re...

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