Results 111 to 120 of about 379,518 (254)

Structural Performance of Hybrid Fiber–Metal Laminates Reinforced With Natural and Synthetic Fibers: Tensile, Dynamic–Mechanical, and Residual Stress Behavior

open access: yesPolymer Composites, EarlyView.
Hybrid fiber‐metal laminates combining aluminum with carbon, glass, and sisal/epoxy layers. Sisal fibers maintained strength, improved strain and thermal stability, and reduced residual stresses with less synthetic fiber. ABSTRACT This work studied how hybridization between natural and synthetic fibers influences the structural tensile performance ...
Vilson Dalla Libera Junior   +4 more
wiley   +1 more source

Fossil insecta from Cainozoic resin at Allendale, Victoria

open access: yes, 1957
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Exploring biofiber properties and their influence on biocomposite tensile properties

open access: yesPolymer International, EarlyView.
The study measured the physical, flow and chemical properties of 10 biofibers. It characterized the tensile properties of derived biocomposites and linked them using regression models, showing robust predictive performance. Abstract Biofibers serve as effective reinforcements for neat polylactic acid (PLA) in biocomposites, offering an attractive ...
Oluwafemi A. Oyedeji   +5 more
wiley   +1 more source

Direct extraction of functional whitened lignocellulose from wood via isocyanate modification in water–ethanol mixture

open access: yesPolymer International, EarlyView.
Direct extraction of lignocellulose from wood derivatives was achieved by introducing a bulky isocyanate substituent to lignin in a water–ethanol mixture. This process exploits the tunable solvent affinity of lignin to achieve its whitening, enabling the isolation of lignocellulose.
Kazuhiro Shikinaka, Shogo Taira
wiley   +1 more source

Bioactivity of Baltic amber – fossil resin

open access: yesPolimery, 2016
Pawel Tumilowicz   +5 more
openaire   +1 more source

Renewable methacrylate resin for vat photopolymerization derived from post‐consumer polyester waste

open access: yesPolymer International, EarlyView.
End‐of‐life poly(ethylene terephthalate) was upcycled into a renewable methacrylate crosslinker using microwave‐assisted methacrylation and applied in vat photopolymerization. The recycled resin enabled high‐resolution 3D printing with tunable mechanical performance, highlighting a circular strategy to reduce fossil‐based photopolymer feedstocks ...
Kylian Janssen   +7 more
wiley   +1 more source

Impact of Packaging and Recycling Systems on Material Recirculation: A Stage‐Decomposition Model

open access: yesPackaging Technology and Science, EarlyView.
A system‐level view emerges from decomposing recycling into four stages (participation, collection, sorting and process yield), diagnosing constraints and targeting interventions. Cumulative equivalent uses (CEUs) quantify long‐term retention, revealing marginal improvements at high baselines generate disproportionately larger gains than low‐baseline ...
Diogo Figueirinhas   +3 more
wiley   +1 more source

Monodisperse Condensed Tannin and Derived Carbon Nanospheres Featuring Well‐Defined Surface‐Structured Metal Species

open access: yesSmall, EarlyView.
Uniform, size‐tunable polyphenol nanospheres are assembled from condensed tannins in water at ambient conditions via controlled supramolecular interactions between tannin and diamines. Their phenolic–amine surfaces template highly dispersed metal species that resist sintering during pyrolysis.
Weitong Wang   +7 more
wiley   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

open access: yesSafety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou   +6 more
wiley   +1 more source

Hevea brasiliensis seeds: A novel sustainable feedstock for ethanol production

open access: yesVietnam Journal of Chemistry, EarlyView.
Abstract The rubber tree (Hevea brasiliensis) is cultivated on a large scale mainly for the extraction of latex in Brazil and Southeast Asia, also generating large quantities of seeds. These seeds currently do not have large‐scale applications and may thus be considered as a residue.
Giovano Tochetto   +4 more
wiley   +1 more source

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