Results 31 to 40 of about 1,946 (184)

Viscoelastic Properties Identification Through Innovative Image-Based DMTA Strategy [PDF]

, 2017
The identification of the high strain-rate properties of materials is an important topic for many engineering applications such as crash worthiness, blast loading, industrial forming, among others. It is also a very challenging experimental task mainly because of the difficulty in measuring impact loads accurately in regimes where inertia effects are ...
Seghir, Rian, Pierron, Fabrice
openaire   +2 more sources

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Surface and thermomechanical characterization of polyurethane networks based on poly(dimethylsiloxane) and hyperbranched polyester

eXPRESS Polymer Letters, 2013
Two series of polyurethane (PU) networks based on Boltorn® hyperbranched polyester (HBP) and hydroxyethoxy propyl terminated poly(dimethylsiloxane) (EO-PDMS) or hydroxy propyl terminated poly(dimethylsiloxane) (HPPDMS), were synthesized.
M. V. Pergal, J. V. Dzunuzovic, R. Poreba, D. Micic, M. Spirkova, L. Pezo, P. Stefanov   +6 more
doaj   +1 more source

Liquid Crystal Elastomer‐Based Haptic Pixel Arrays at Your Fingertips for Advanced Human–Machine Interfaces

Advanced Materials, EarlyView.
We mechanically program liquid crystal elastomer coatings as a stimuli‐responsive and digitally addressable platform for refreshable tactile displays; we validate the perceptual performance of our dynamic device matches conventional static tactile media.
Tom Bruining, Enjun Lin, Yu Zou, Meike Heldoorn, Pengrong Lyu, Samuël A. M. Weima, Astrid M. L. Kappers, Myrthe A. Plaisier, Satoshi Aya, Danqing Liu   +9 more
wiley   +1 more source

بررسی رفتار ویسکوالاستیک در رزین‌ها، پوشش‌های آلی و نانو کامپوزیت‌ها [PDF]

مطالعات در دنیای رنگ, 2019
اغلب پوشش‌های آلی به‌دست آمده از تولید محصولات تجاری رنگ و پوشش، ویسکوالاستیک می‌باشند. مطالعه رفتار ویسکوالاستیک این پوشش‌ها بعد از پخت آنها یکی از آزمون‌های مهم است که اطلاعات مفیدی را در مورد عملکرد پوشش پخت شده در اختیار ما قرار می‌دهد.
داود قنبری, بهزاد شیرکوند هداوند, ملیحه پیشوایی   +2 more
doaj  

Interactions in Nanosilica‐Polyurethane Composites Evidenced by Plate‐Plate Rheology and DMTA

Macromolecular Symposia, 2005
AbstractFumed nanosilicas with different degree of silanization were used to obtain nanosilica‐polyurethane (TPU) composites to modify their rheological and mechanical properties. The higher the silanol content of the nanosilica, the higher the storage modulus and the thermal stability of the silica‐TPU composite.
Martín Martínez, Jose Miguel, Vazquez, Patricia Graciela, Vega Baudrit, José, Navarro Bañón, Virtudes   +3 more
openaire   +3 more sources

Research of Wood-Polymer Compositions of DMTA Methods

International Journal of Science and Society, 2020
The article presents the results of polymer-wood composites, as well as the excretion of tritium woods and leaves. The base of the composite was made of thermoplastic polypropylene. Three composites prepared by the volume of filling content (25, 50 and 70%) and the various fractions of the used slags were prepared for research.
openaire   +1 more source

Least-Squares evaluation of DMT dissipation test data – some preliminary results [PDF]

E3S Web of Conferences
The Flex method does not work if the DMTA total stress dissipation curve is non-monotonic or has no inflexion point. To overcome the problems, various versions of a mathematically precise DMTA total stress dissipation test evaluation method are suggested
Imre Emőke, Marchetti Diego, Juhasz Miklos, Bates Lachlan, Fityus Stephen   +4 more
doaj   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Augmenting DMTA using predictive AI modelling at AstraZeneca

Drug Discovery Today
Design-Make-Test-Analyse (DMTA) is the discovery cycle through which molecules are designed, synthesised, and assayed to produce data that in turn are analysed to inform the next iteration. The process is repeated until viable drug candidates are identified, often requiring many cycles before reaching a sweet spot. The advent of artificial intelligence
Gian Marco Ghiandoni, Emma Evertsson, David J. Riley, Christian Tyrchan, Prakash Chandra Rathi   +4 more
openaire   +2 more sources