Results 51 to 60 of about 75,178 (333)

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

High Stiffness Performance Alpha-Grass Pulp Fiber Reinforced Thermoplastic Starch-Based Fully Biodegradable Composites

open access: yesBioResources, 2013
Alpha-grass was studied as the reinforcement in a starch-based polymer matrix. Mater-bi®-Y was chosen as a matrix due to its Young’s modulus, in line with that of polypropylene. The test specimens were injection molded and tensile tested.
Francesc X. Espinach   +4 more
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Design dopamine-modified polypropylene fibers towards removal of heavy metal ions from water

open access: yesAIP Advances, 2017
A simple approach to preparing dopamine-modified polypropylene fibers with a controllable polydopamine amount is supplied. By the dopamine modification, the hydrophobic polypropylene fibers have been changed into hydrophilic.
K. Liu   +4 more
doaj   +1 more source

Comparison of the Mechanical Behavior of Concrete Containing Recycled CFRP Fibers and Polypropylene Fibers

open access: yesApplied Sciences, 2021
The incorporation of natural or recycled fibers in concrete represents a field for improvement in this structural material and a step towards sustainability.
María Isabel Prieto   +3 more
doaj   +1 more source

Influence of the type of fiber on the structural response and design of FRC slabs [PDF]

open access: yes, 2016
Most codes for the design of fiber reinforced concrete (FRC) structures are based on the experience achieved throughout the years with steel fibers. Recent codes include the possibility of applying the same considerations for FRC structures with plastic ...
Aguado de Cea, Antonio   +4 more
core   +4 more sources

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

Long-Term Properties of Different Fiber Reinforcement Effect on Fly Ash-Based Geopolymer Composite

open access: yesCrystals, 2021
Geopolymer composites have been around only for 40 years. Nowadays, they are used in buildings and infrastructures of various kinds. A geopolymer’s main benefit is that it is a green material that is partially made by utilizing waste products. The carbon
Rihards Gailitis   +5 more
doaj   +1 more source

Microplastics from Wearable Bioelectronic Devices: Sources, Risks, and Sustainable Solutions

open access: yesAdvanced Functional Materials, EarlyView.
Bioelectronic devices (e.g., e‐skins) heavily rely on polymers that at the end of their life cycle will generate microplastics. For research, a holistic approach to viewing the full impact of such devices cannot be overlooked. The potential for devices as sources for microplastics is raised, with mitigation strategies surrounding polysaccharide and ...
Conor S. Boland
wiley   +1 more source

Mechanical Properties and Development of Steel Fiber, Polypropylene Fiber and Steel-Polypropylene Fiber Concrete Structures

open access: yesHighlights in Science, Engineering and Technology, 2023
Fibre concrete is a commonly improved concrete. Compared with ordinary concrete, it has more excellent characteristics and has been widely used in engineering structures and other fields. This paper describes the mechanical properties of polypropylene fibres, steel fibres, and hybrid fibres (steel fibres and polypropylene fibres); it discusses the use ...
openaire   +1 more source

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