Epoxy based hybrid nanocomposites: Fracture mechanisms, tensile properties and electrical properties

编号 020031404

推送时间 20211025

研究领域 林产化工 

年份 2021 

类型 期刊 

语种 英语

标题 Epoxy based hybrid nanocomposites: Fracture mechanisms, tensile properties and electrical properties

来源期刊 Materials Today: Proceedings

期 第314期

发表时间 19050713

关键词 Epoxy;  Nanocomposite;  Fracture mechanics;  Nanoparticles;  Electrical properties; 

摘要 This work explore the effect of addition of a combination of rigid nanofillers and core–shell rubber nanoparticles on the?fracture mechanics, tensile, electrical and thermo-mechanical properties of epoxy resins. SiO2?nanoparticles, multi-walled carbon nanotubes (MWCNT's), as rigid nanofillers, and core–shell rubber (CSR) nanoparticles, as soft nanofillers were used with bisphenol-A based epoxy resin. Further, the rigid fillers were added systematically with core–shell rubber nanoparticles and MWCNT’s to study the combined effect of rigid nanofillers and soft CSR nanoparticles. The resulting systems will be characterized by standard methods. This includes a thorough characterization of tensile, fracture mechanics, electrical, and thermal properties. The results show that the maximum increase of fracture toughness (207%) and fracture energy (910%) was obtained for system containing 5?wt% of CSR and 10% SiO2. The electrical conductivity threshold was obtained at 0.075?wt% of MWCNT’s modified system. The introduction of CSR nanoparticles significantly increase the fracture energy of the matrix with decrease in?tensile strength?and?tensile modulus, which was further recovered with the addition of SiO2?nanoparticles. The analysis of the fracture surfaces revealed the toughening micro-mechanisms.

服务人员 尚玮姣

服务院士 宋湛谦

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