Results 61 to 70 of about 628,978 (424)

Synthesis of novel vanillin-amine hardeners fully derived from renewable bio feedstocks and their curing with epoxy resins to produce recyclable reprocessable vitrimers

open access: yesHeliyon, 2023
Biobased epoxy vitrimers have reached intense interest in recent decades. The triggerable reverse bonds can be introduced into these crosslinked epoxy vitrimers through epoxy resins or hardeners.
Muhammad Abdur Rashid   +2 more
doaj  

Study of Relaxations in Epoxy/Rubber Composites by Thermally Stimulated Depolarization Current and Dielectric Spectroscopy

open access: yesFrontiers in Chemistry, 2022
Liquid rubber toughened epoxy resins are widely used in electrical equipment and electronic packaging. Previous studies have only investigated the relaxation process of epoxy resins through dielectric spectroscopy.
Chuang Wang   +6 more
doaj   +1 more source

Ultra-ductile and low friction epoxy matrix composites [PDF]

open access: yes, 2014
We present the results of an effective reinforcement of epoxy resin matrix with fullerene carbon soot. The optimal carbon soot addition of 1 wt. % results in a toughness improvement of almost 20 times. The optimized soot-epoxy composites also show an increase in tensile elongation of more than 13 %, thus indicating a change of the failure mechanism in ...
arxiv   +1 more source

Synthesis and curing properties of multifunctional castor oil-based epoxy resin

open access: yesPolymer Testing, 2023
A series of multifunctional castor oil-based epoxy resins, named methoxy castor oil polyglycidyl ether (MOCOGE), allyloxy castor oil polyglycidyl ether (AOCOGE), and castor oil-based non-glycidyl ether (CONGE), was designed through a ring-opening ...
Fengfan Zhu   +5 more
doaj  

Multifunctional epoxy nanocomposites reinforced by two-dimensional materials: A review [PDF]

open access: yesarXiv, 2021
Epoxy resins are thermosetting polymers with an extensive set of applications such as anticorrosive coatings, adhesives, matrices for fibre reinforced composites and elements of electronic systems for automotive, aerospace and construction industries.
arxiv  

Effect of Water Aging on the Mechanical Properties of Hybrid Carbon/Aramid Reinforced Thermoplastic Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the mechanical properties of Carbon/Aramid intraply hybrid fiber‐reinforced Elium composites under 6 months of water aging. After aging, flexural strength decreases by 25.89%, tensile strength by 4.40%, and fracture toughness by 21.56%.
Muhammed Huseyin Guzel, Gurol Onal
wiley   +1 more source

Investigation of Adsorption and Young’s Modulus of Epoxy Resin–Sand Interfaces Using Molecular Dynamics Simulation

open access: yesApplied Sciences
Epoxy resins exhibit outstanding curability, durability, and environmental compatibility, rendering them extensively utilized in the realm of engineering curing.
Dejian Shen   +5 more
doaj   +1 more source

A Comparative Study on the Thermal Resistance, Flammability and Mechanical Properties of Unsaturated Polyester and Epoxy Resins [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
Thermal properties, flammability and mechanical properties of three different kinds of unsaturated polyester resins, ortho, iso and vinyl ester and an epoxy resin based on diglycidyl ether of bisphenol-A were investigated.
Mohammad Ali Fathizadeh   +1 more
doaj   +1 more source

Toughness of Confined Auxetic Foams

open access: yesAdvanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis   +3 more
wiley   +1 more source

Joule‐Assisted Nanotherapeutic Urethral Stent (JANUS) for Spatiotemporal Theragenerative Treatment of Urethral Strictures

open access: yesAdvanced Functional Materials, EarlyView.
Joule‐assisted nanotherapeutic urethral stent harnesses a smart, biodegradable magnesium stent to orchestrate spatiotemporal theragenerative therapy for urethral strictures. Magnetically induced Joule heating enables on‐demand drug release and bacterial ablation, while simultaneously guiding urothelial regeneration.
Yuhyun Na   +15 more
wiley   +1 more source

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