Results 21 to 30 of about 51,087 (265)

Characterization of PVC/MWCNTs Nanocomposite: Solvent Blend

open access: yesScience and Engineering of Composite Materials, 2020
Polyvinyl Vinyl Chloride (PVC) multiwall carbon nanotubes (MWCNTs) nanocomposite flexible films were prepared using the solvent blend technique. Chloroform (CHCl3) and tetrahydrofuran ((CH2)4O) were used as solvents for MWCNTs and PVC, respectively.
Naim Abdullah F. Al   +3 more
doaj   +1 more source

Improvement of crack tip position estimation in DIC images by image processing methods

open access: yesFracture and Structural Integrity, 2023
The study proposes and compares two procedures to identify the crack tip location in PVC Sent samples under a uniaxial tensile test based on the image processing method.
Zekriti Najat   +6 more
doaj   +1 more source

Neocolonization of Africa: security-military and economic-investment aspects of instruments of influence of foreign states

open access: yesЕкономіка, управління та адміністрування, 2023
The study focuses on the issue of neo-colonization of Africa, identifying the main actors and beneficiaries, as well as their impact on the African region. Two approaches used by foreign states in the process of influencing the African region are singled
V.V. , T.O. , O.S.
doaj   +1 more source

Effect of different tin neodecanoate and calcium–zinc heat stabilizers on the thermal stability of PVC

open access: yese-Polymers, 2023
Heat stabilizers are crucial additives for enhancing the thermal stability of polyvinyl chloride (PVC) during processing. Among the various heat stabilizers available, organic tin compounds have shown remarkable effectiveness.
Wang Xiang, Di Chao, Wang Tingwei
doaj   +1 more source

A Comprehensive Review on Microplastic Pollution in Aquatic Ecosystems and Their Effects on Aquatic Biota

open access: yesAquatic Sciences and Engineering, 2023
Plastic wastes released into the environment break down into fine particles due to exposure to meteorological events such as wind, precipitation, UV radiation, and abrasion.
Duygu Sazlı   +3 more
doaj   +1 more source

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad   +22 more
wiley   +1 more source

Hybrid Metal–Carbon Ink for Printed Stretchable Temperature Sensors

open access: yesAdvanced Engineering Materials, EarlyView.
We prepare conductive inks for temperature sensing with silver flakes and carbon or graphite flakes in a silicone elastomer matrix. Silver dominates the temperature‐dependent conductivity, while the carbon filler network ensures the stability of the conductive pathways and retains function under strain.
Makara Lay   +3 more
wiley   +1 more source

Synthesis, Characterization, and Application of a Bio-Based Plasticizer for PVC: Epoxidized Acetylation Cardanol [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
A bio-based plasticizer, epoxidized acetylation cardanol, was synthesized from cardanol, which experienced acetylation reaction and epoxidation reaction.
Yufeng Ma   +5 more
doaj  

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi   +3 more
wiley   +1 more source

Migration of nonylphenols from polymer packaging materials into food simulants

open access: yesCzech Journal of Food Sciences, 2009
p-Nonylphenol (NP) is widely used in many industrial applications (detergents, latex paints, pesticides, and plastics), and its presence in the environment has acquired an increasing concern since it was shown to be, besides its persistence and toxicity,
L. Votavová   +3 more
doaj   +1 more source

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