Results 21 to 30 of about 6,399 (235)

Development of Bio and Non-Fluorinated Palmitic Acid Based Water Repellent for Cotton Fabric

open access: yesJournal of Natural Fibers, 2022
Fluorinated compounds provide excellent oil and water repellency to cotton fabrics. But, they have various toxic effects on human health and the environment.
Rabia Sharif   +5 more
doaj   +1 more source

Propane (HC – 290) as an Alternative Refrigerant in the Food Transport Refrigeration Sector in Southern Africa – a Review

open access: yesAutomotive Experiences, 2022
Most of the food transport trucks in Sothern Africa are equipped with refrigeration and air conditioning systems filled with fluorocarbon refrigerants such as R404A to facilitate the heat transfer process.
Thomas Kivevele
doaj   +1 more source

Functional fluorocarbons via free radical additions to hexafluoropropene [PDF]

open access: yes, 1987
The effect of substituents on the carbon-hydrogen bond reactivity in free radical additions to hexaf1uoropropene has been investegated. Ethers, amines, amides, isocyanates and silanes all give Free radical adducts.
Jones, S. L.
core   +3 more sources

Investigation of Chemical Treatments to Enhance the Mechanical Properties of Natural Fiber Composites

open access: yesInternational Journal of Polymer Science, 2023
A sustainable approach to composites is leading to the use of natural fibers rather than synthetic materials, like carbon or glass, for reinforcement. However, the higher moisture absorption of natural fibers impairs the composite’s mechanical properties.
Farooq Rauf   +5 more
doaj   +1 more source

Cardiac tissue engineering [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
We hypothesized that clinically sized (1-5 mm thick),compact cardiac constructs containing physiologically high density of viable cells (≈108 cells/cm3) can be engineered in vitro by using biomimetic culture systems capable of providing oxygen transport ...
Radišić Milica   +1 more
doaj   +1 more source

Systematic review and meta-analysis of epidemiologic data on vaccine response in relation to exposure to five principal perfluoroalkyl substances

open access: yesEnvironment International, 2023
Background: Epidemiologic studies of serum per- and polyfluoroalkyl substances (PFAS) and antibody response to vaccines have suggested an adverse association, but the consistency and magnitude of this association remain unclear.
Lori Crawford   +6 more
doaj   +1 more source

Ubiquitously occurring perfluoroalkyl and polyfluoroalkyl substances: An overview of food and environmental contamination and implications for human health [PDF]

open access: yesScripta Medica
Perfluoroalkyl and polyfluoroalkyl substances (PFAS), commonly known as 'forever chemicals' are synthetic, anthropogenic compounds widely used in food packaging, processing equipment and nonstick surfaces.
Jaglan Poonam   +3 more
doaj   +1 more source

Fundamental Aspect And Behavior Of Saturated Fluorocarbons In Glow Discharge In Absence Of Potential Source Of Hydrogen [PDF]

open access: yes, 1992
The glow discharge of a series of saturated fluorocarbons, CnF2n+2 (n = 1, 2, 4, 6, and 8), was studied with glass substrates which do not contain any hydrogen.
Yasuda, H., Iriyama, Yu
core   +1 more source

Greenhouse Gas Sensors Fabricated with New Materials for Climatic Usage: A Review

open access: yesChemEngineering, 2018
With the increasing utilization of fossil fuels in today’s technological world, the atmosphere’s concentration of greenhouse gases is increasing and needs to be controlled.
Kalathur S. V. Santhanam   +1 more
doaj   +1 more source

European experience application in replacing hydrofluorocarbons in air conditioning units in domestic railway transport

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
Adoption by Russia of the Kigali Amendment to the Montreal Protocol on substances that deplete the ozone layer posed a very difficult task for consumers of artificial cold, including rail transport, to find an acceptable alternative to the R134a freon ...
I. M. Mazurin, S. N. Naumenko
doaj   +1 more source

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