Results 21 to 30 of about 61,821 (285)

Tribotechnical characteristics of polyamide PA 6 with additives of molybdenum disulfide and graphite [PDF]

open access: yesE3S Web of Conferences, 2023
The paper presents the results of tribotechnical tests of polyamide PA 6 with additives of molybdenum disulfide and graphite in comparison with nitrile butadiene rubber, BNC rubber.
Biryukov Vladimir, Yakubovsky Anton
doaj   +1 more source

Asymmetric polyamide nanofilms with highly ordered nanovoids for water purification

open access: yesNature Communications, 2020
Structure and morphology are critical to the performance of permeable and selective polyamide membranes in water purification. Here, the authors report a two layer asymmetric polyamide nanofilm in which a spherical polyamide dendrimer porous lower and a ...
Bingbing Yuan   +4 more
doaj   +1 more source

Evolution of dispersion of carbon nanotubes in Polyamide 11 matrix composites as determined by DC conductivity [PDF]

open access: yes, 2012
Double-walled Carbon NanoTubes (DWCNTs) have been dispersed in a Polyamide 11 (PA11) matrix by two routes: in the solvent way, Polyamide 11 was first dissolved in its solvent to ensure a liquid state dispersion of carbon nanotubes by ultrasonic way; in ...
Levallois, Franck   +5 more
core   +1 more source

Locating Hazardous Chemical Leakage Source Based on Cooperative Moving and Fixing Sensors

open access: yesSensors, 2019
In dealing with sudden hazardous chemical leakage accidents, the key to solving the evacuation and transfer of personnel and important property is to determine the location of the leakage source and the information of the source strength to gauge the ...
Yaguang Kong   +8 more
doaj   +1 more source

Reactive extrusion mechanism, mechanical and tribological behavior of fiber reinforced polyamide 66 with added carbodiimide

open access: yesMaterials & Design, 2020
In this study, the reactive extrusion mechanism of fiber-reinforced polyamide 66 materials with added carbodiimide was clarified, and the mechanical and tribological properties of the materials were evaluated.
Takeshi Kunishima   +4 more
doaj   +1 more source

Impact of Polyamide Surface Preparation on the Formation of Mixed CdS-CdTe Layers

open access: yesCrystals, 2023
CdTe-CdS layers were formed on polyamide (PA) 6 films with different surface modifications using the sorption-diffusion method. Part of the samples of the PA films was boiled in distilled water for 2 h and the other ones were stored in concentrated ...
Migle Liudziute   +3 more
doaj   +1 more source

WEAR RESISTANCE OF THERMOPLASTIC COATINGS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2010
Abrasion wear caused by sand particles is the prevailing mode of wear in the Arabic nations. The relative increase in the concentration of airborne dust is responsible for the wear increase.
W. Y. Ali, A. A. Khattab, F. H. Ezzat
doaj   +1 more source

Microplastic-Assisted Removal of Phosphorus and Ammonium Using Date Palm Waste Derived Biochar

open access: yesToxics, 2023
Microplastics (MPs) are emerging environmental pollutants worldwide, posing potential health risks. Moreover, MPs may act as vectors for other contaminants and affect their fate, transport, and deposition in the environment.
Munir Ahmad   +7 more
doaj   +1 more source

Crystallization and Performance of Polyamide Blends Comprising Polyamide 4, Polyamide 6, and Their Copolymers

open access: yesPolymers, 2023
Polyamide 4 (PA4) is a biobased and biodegradable polyamide. The high hydrogen bond density of PA4 bestows it with a high melting point that is close to its thermal decomposition temperature, thereby limiting the melt processing of PA4. In this study, PA4 was blended with polyamide 6 (PA6) and further modified with copolyamide 4/6 (R46). The effects of
Yajing Zhang   +8 more
openaire   +2 more sources

Optimizing the Control Level Factors of an Ultrasonic Plastic Welding Machine Affecting the Durability of the Knots of Trawl Nets Using the Taguchi Experimental Method

open access: yesApplied Sciences, 2023
Ultrasonic welding is a high-frequency method of welding that uses mechanical energy to generate heat. This is a clean welding method and very suitable for plastic welding.
Nghia-Danh Nguyen, Shyh-Chour Huang
doaj   +1 more source

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