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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...
Polyetherimide (PEI) possesses excellent thermal resistance and advanced mechanical properties, for which it has been used as interior materials in various transportation structures. Multifunctional PEI nanocomposites, in particular, with high damping properties and satisfactory static dissipation capability, will be more significant for those applications. In this study, PEI/graphene nanoplatelet...
In this study, a fully aliphatic polyimide (FAPI) with ultra high modulus and hardness has been synthesized via 1, 3-diaminopropane and ethylenediaminetetraacetic dianhydride. The thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) studies revealed the thermal imidization process occurred at a low temperature, around 140–150 °C. The resulting aliphatic polyimide could not...
Poly(vinylidene fluoride) (PVDF) is an important ferroelectric semi-crystalline polymer with multiple-phase behavior. In this study, remarkable effects of the various crystalline structures of PVDF nanocomposites on alternating current (AC) conductivity were discovered using carbon nanofibers (CNF). It was found that the transformation from α-phase to β-phase in PVDF, induced by the addition of CNFs,...
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