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Simultaneously improving toughness and strength without sacrificing thermal resistance and maintaining the viscosity of an epoxy resin for application in Liquid Composite Molding (LCM) process has been challenging. This paper reported such a high performance epoxy system modified by a hybrid of toughening agents, block copolymer particle (BCP) and core-shell particle (CSP), was successfully prepared...
A kind of liquid-like multiwalled carbon nanotube (MWCNT) reinforcements was prepared and dispersed into epoxy matrix. The effects of the liquid-like MWCNT reinforcements on the processing, mechanical and interfacial properties of carbon fiber filament wound composites were investigated. The results showed that the liquid-like MWCNT reinforcements can be uniformly dispersed in epoxy matrix which showed...
Trial-and-error approaches for experimentally designing and optimizing the polymer matrix for advanced composites are time-consuming and expensive. The simulation for curing behavior and structure–property relationships of epoxy resins can provide a guideline for designing resin matrix which will possess desirable properties. So far there are few reports in which the accuracy of the molecular simulation...
Liquid chromatography at the critical condition (LCCC) method has been proposed as an attractive method to characterize individual blocks in block copolymers because it can make one block chromatographically “invisible” at the critical condition of its corresponding homopolymer. However, observable dependence of retention time on the “invisible” block length was reported in LCCC experimental studies...
A series of novel novolac epoxy resins containing naphthalene moiety with different molecular weights were synthesized via condensation of bisphenol A and 1-naphthaldehyde, followed by epoxidation with epichlorohydrin. The chemical structure of the naphthalene epoxy thus obtained was characterized using FTIR, 1 H NMR spectra and GPC analyses. The naphthalene epoxy was cured with 4,4′-diaminodiphenyl...
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