Results 31 to 40 of about 45,954 (303)

A method to measure the influence of humidity and temperature on the interfacial adhesion in polyamide composites [PDF]

open access: yes, 2015
The work presented focuses on the need to better understand the effect environmental conditions namely humidity have on the interfacial shear strength (IFSS) of composites.
Thomason, James L., Downes, Kerrie A.
core   +1 more source

Long-Chain Modification of the Tips and Inner Walls of MWCNTs and Their Nanocomposite Reverse Osmosis Membranes

open access: yesMembranes, 2022
Multi-walled carbon nanotubes (MWCNTs) were modified on the tips and inner walls by 12-chloro-12-oxododecanedioic acid-methyl ester groups and then added to the polyamide composite membranes to prepare MWCNT-CH2OCOC12H23O2 membranes for desalination. The
Qing Li   +6 more
doaj   +1 more source

Thermal oxidation kinetics of additive free polyamide 6-6 [PDF]

open access: yes, 2013
Thermal aging of an additive free PA 6-6 has been elucidated at 90, 100, 120, 140, 150 and 160 C in airventiled ovens by Fourier transform infrared spectrophotometry, viscosimetry in molten state and uniaxial tensile testing.
BEN HASSINE, Mouna   +3 more
core   +1 more source

Removal of Sulfadiazine by Polyamide Nanofiltration Membranes: Measurement, Modeling, and Mechanisms

open access: yesMembranes, 2021
In this study, a complete steric, electrostatic, and dielectric mass transfer model is applied to investigate the separation mechanism of typical antibiotic sulfadiazine by NF90, NF270, VNF-8040 and TMN20H-400 nanofiltration membranes.
Haochen Zhu, Bo Hu, Fengrui Yang
doaj   +1 more source

Development of an Additive Manufacturing System for the Deposition of Thermoplastics Impregnated with Carbon Fibers

open access: yesJournal of Manufacturing and Materials Processing, 2019
This work presents an innovative system that allows the oriented deposition of continuous fibers or long fibers, pre-impregnated or not, in a thermoplastic matrix.
Miguel Reis Silva   +5 more
doaj   +1 more source

TRIBOLOGICAL PERFORMANCE OF ANTIWEAR ADDITIVE DISPERSED IN HYDRAULIC OIL [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2022
The antiwear properties of hydraulic oils containing zinc dialkyl dithiophosphates are discussed. The tested additives are added to hydraulic oil at different concentrations. Tests were carried out to investigate the friction and wear of steel lubricated
A. R. M. Touny, M. M. Mahmoud, W. Y. Ali
doaj   +1 more source

Pilot scale study of chlorination-induced transport property changes of a seawater reverse osmosis membrane [PDF]

open access: yes, 2013
A pilot-scale study was performed to assess variations of reverse osmosis (RO) membrane water permeance (A) and salt retention (Robs) induced by chlorination and to compare them with those observed at the lab-scale. A chlorination protocol was adapted to
Causserand, Christel   +3 more
core   +1 more source

Preparation of Thermoplastic Polyimide Ultrafine Fiber Nonwovens by Electrospinning

open access: yesCailiao gongcheng, 2018
The superfine fiber of thermoplastic polyimide(LPI), whose average diameter ranges from 0.36μm to 1.47μm, was prepared through electrospinning with DMAc as solvent. It lays a good foundation for the mass preparation of LPI non-woven.
CHEN Jun   +6 more
doaj   +1 more source

Review : Auto-oxidation of aliphatic polyamides [PDF]

open access: yes, 2013
The literature on oxidation kinetics of polyamides and model compounds has been reviewed in order to try to extract suitable information for non-empirical kinetic modeling.
GUILMENT, Jean   +6 more
core   +1 more source

Technological optimization and fatigue evaluation of carbon reinforced polyamide 3D printed gears

open access: yesHeliyon
Nowadays, this is even more challenging while additive manufacturing technology is used for prototyping, as well as the production of gearing systems.
Matija Hriberšek   +5 more
doaj   +1 more source

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