Results 81 to 90 of about 1,482,034 (300)

Thermal behaviour of benzoxazine blends based on epoxy and cyanate ester

open access: yesPolymers and Polymer Composites, 2021
In the present work, an attempt has been made to develop high-performance polymeric hybrid binary blends of epoxy/benzoxazine and benzoxazine/cyanate ester with varying weight percentages (25/75, 50/50 and 75/25 wt%) of resins, namely, bisphenol-F epoxy ...
Balaji Krishnasamy   +3 more
semanticscholar   +1 more source

High‐Voltage Cathode Materials for Sodium‐Ion Batteries: Advances and Challenges

open access: yesSmall, EarlyView.
This review explores the role of high‐voltage cathode materials in enhancing the performance of SIBs. It focuses on strategies to improve energy density, rate capacity, and stability, addressing challenges like phase transitions, metal migration, and electrolyte degradation.
Congqi Ren, Yulian Dong, Yong Lei
wiley   +1 more source

Research on sub-micron measurement methods of M55J carbon fibre/cyanate ester composites

open access: yesThe Journal of Engineering, 2019
In view of the axial dimensional stability of the main loaded cylinder of the space camera, the thermal expansion characteristics of the carbon fibre M55J/cyanate ester (CE) composite were studied. In this paper, the coefficient of thermal expansion (CTE)
Yan Li, Wenjie Ge, Wenge Jiang
doaj   +1 more source

Ameliorated Mechanical and Dielectric Properties of Heat-Resistant Radome Cyanate Composites

open access: yesMolecules, 2020
In order to improve the mechanical and dielectric properties of radome cyanate, a synergistic reinforcement method is employed to develop a resin-based ternary-composite with high heat-resistance and preferable radar-band transmission, which is expected ...
Hou-Yu Li   +3 more
doaj   +1 more source

Nanochemistry of fullerene c60. cyano- and azo-polyderivatives [PDF]

open access: yesarXiv, 2010
Cyanation C60 to C60(CN)18 and aziridination from C60 to C60(NH)9 have been studied by unrestricted broken spin symmetry Hartree-Fock approach implemented in semiempirical codes based on AM1 technique. The calculations were focused on successive addition of CN and NH moieties to the fullerene cage following the indication of the cage target atoms by ...
arxiv  

Circular 18 [PDF]

open access: yes, 1952
Weed control studies at the Matanuska Experiment Station during the past two seasons have shown that many garden and field crops can be weeded satisfactorily with chemioals.
Dearborn, C.H.
core  

Local Support Assembly of the ATLAS Pixel Detector

open access: yes, 2006
The barrel part of the ATLAS pixel detector will consist of 112 carbon-carbon structures called "staves" with 13 hybrid detector modules being glued on each stave. The demands on the glue joints are high, both in terms of mechanical precision and thermal
Becks, Karl-Heinz   +8 more
core   +1 more source

Electrochemical Hydrodimerization of Lignocellulose‐Derived Carbonyls in Aqueous Electrolytes for Biobased Polymer and Long‐chained Synfuel Production: A Review

open access: yesChemSusChem, Volume 18, Issue 3, February 1, 2025.
Electrochemistry meets biomass: Lignocellulose‐derived carbonyls, such as vanillin, furfural and 5‐HMF, are versatile and green building blocks. Electrochemical hydrodimerization of these intermediates offers a sustainable pathway to long‐chained multifunctional precursors for biobased polymers and synfuels for heavy‐duty applications.
Robin Kunkel, Volkmar M. Schmidt
wiley   +1 more source

Structure-function relationships of fullerene esters in polymer solar cells: unexpected structural effects on lifetime and efficiency [PDF]

open access: yesarXiv, 2014
We report both transport measurements and spectroscopic data of polymer/fullerene blend photovoltaics using a small library of fullerene esters to correlate device properties with a range of functionality and structural diversity of the ester substituent.
arxiv  

Polymer nanocomposites for high-temperature composite repair [PDF]

open access: yes, 2008
A novel repair agent for resin-injection repair of advanced high temperature composites was developed and characterized. The repair agent was based on bisphenol E cyanate ester (BECy) and reinforced with alumina nanoparticles.
Sheng, Xia
core   +3 more sources

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