Results 91 to 100 of about 23,308 (300)

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Functionalized epoxy resins for enhanced interface properties and corrosion resistance: Tailoring of surface and interface properties and performance

Applied Surface Science Advances
The use of functionalized epoxy resins (FERs) to improve corrosion resistance in various industrial applications has grown. Covalent and noncovalent modifications are the two main techniques for functionalizing epoxy resins. The addition of hydroxyl (‒OH)
Chandrabhan Verma, Kyong Yop Rhee, Akram Alfantazi   +2 more
doaj   +1 more source

Surface modification of UV Cured epoxy resins by click Chemistry [PDF]

, 2010
A novel method for surface modification of UV-cured epoxy network was described. Photoinitiated cationic copolymerization of a bisepoxide, namely 3,4-epoxy cyclohexylmethyl 3,4-epoxycyclohexanecarboxylate (EEC) with epibromohydrine (EBH) by using a ...
Yuksel Durmaz, Y., Sangermano, Marco, Durmaz, Yasemin Yuksel, Yagci, Y., Y. Yuksel Durmaz, Y. Yagci, Yagci, Yusuf   +6 more
core   +1 more source

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

Decoupling the Effects of Temperature, Strain, and Refractive Index in Long-Period Fiber Grating Used for Epoxy Resin Cure Monitoring

Sensors
Epoxy resins are widely used in the manufacture of composite materials for a wide range of applications. Control of the curing process is an important consideration in ensuring product quality and minimizing production times. The curing of epoxy resin is
Oleg V. Ivanov, Kaushal Bhavsar, James M. Gilbert   +2 more
doaj   +1 more source

A phosphorus/silicon-based, hyperbranched polymer for high-performance, fire-safe, transparent epoxy resins

, 2022
The implementation of current flame-retardant strategy is often accompanied by the deterioration of other properties, e.g., mechanical and optical properties. Herein, a flame-retardant, hyperbranched polymer was synthesized by using trichlorovinylsilane (
Fang, Zhengping, Ye, Guofeng, Guofeng Ye, Zhengping Fang, Siqi Huo, Hao Wang, Shi, Qui, Cheng Wang, Yu, Lingfeng, Qiu Shi, Lingfeng Yu, Wang, Cheng, Liu, Zhitian, Zhitian Liu, Huo, Siqi, Wang, Hao   +15 more
core   +1 more source

Thermally Modulated Metasurface Sensor for Dynamic and Time‐Resolved Isolation of Extracellular Vesicles

Advanced Materials, EarlyView.
A thermally adaptive plasmonic metasurface, functionalized with poly(N‐isopropylacrylamide) (PNIPAM) and anti‐CD63 antibodies, enables precise, on‐demand capture and release of extracellular vesicles (EVs). Delivering high recovery, improved purity, and intact vesicle structure, the platform offers a versatile, label‐free solution for real‐time EV ...
Beyza Nur Kucuk, Eylul Gulsen Yilmaz, Yusuf Aslan, Emre Ece, Özgecan Erdem, Murat Alp Gungen, Bengi Özgün Öztürk, Fatih Inci   +7 more
wiley   +1 more source

Vanillin-Derived High-Performance Flame Retardant Epoxy Resins: Facile Synthesis and Properties

, 2017
Lignin derivative vanillin when coupled with diamines and diethyl phosphite followed by reaction with echichlorohydrin yields high-performance flame retardant epoxy resins. Biorenewable and environment-friendly flame retardant alternatives to bisphenol A
Zhu, Jin, Wang, Zongbao, Jing Chen, Jin Zhu, Shen, Xiaobin, Jinyue Dai, Yuan Liu, Chenxiang Xu, Ma, Songqi, Xiaobin Shen, Xiaoqing Liu, Sheng Wang, Songqi Ma, Wang, Sheng, Wei, Jingjing, Liu, Yuan, Jingjing Wei, Dai, Jinyue, Xu, Chenxiang, Zongbao Wang, Liu, Xiaoqing, Chen, Jing   +21 more
core   +1 more source

Spatially-resolved volume monitoring of adhesive cure using correlated-image optical coherence tomography [PDF]

, 2013
Cross-correlation of optical coherence tomography (OCT) images has been applied to internal imaging of PVA and two-part epoxy adhesives during cure, providing information on relative viscosity at different positions within the sample volume.
Tatam, Ralph P., Ford, Helen D.
core   +1 more source

Block chemistry for accurate modeling of epoxy resins

, 2022
Accurate molecular modelling of the physical and chemical behavior of highly cross-linked epoxy resins at the atomistic scale is important for the design of new property-optimized materials.
Sampanna, Pahi, Piotr, Nowakowski, Christian R., Wick, David M., Smith, Ana-Sunčana, Smith, Mattia, Livraghi   +5 more
core   +1 more source