Nanomechanical and anti-stabbing properties of Kolon fabric composites reinforced with hybrid nanoparticles

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• 作者：Vera Obradović ; ^{vobradovic@tmf.bg.ac.rs" class="auth_mail" title="E-mail the corresponding author} ; Du&scaron ; ica B. Stojanović ; Bojan Jokić ; Milorad Zrilić ; Vesna Radojević ; Petar S. Uskoković ; Radoslav Aleksić
• 关键词：Aramid fibre ; Particle reinforcement ; Hardness ; Mechanical properties
• 刊名：Composites Part B: Engineering
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：108
• 期：Complete
• 页码：143-152
• 全文大小：2560 K

文摘

In this study carbon nanotubes (CNT) and silica nanoparticles (SiO₂) were added to enhance the dynamic mechanical and anti-stabbing properties of the polyurethane/p-aramid multiaxial fabric (Kolon fabric) composites for ballistic protection. The SiO₂ were modified (mSiO₂) and CNT were oxidised (o-CNT) in order to fabricate o-CNT/mSiO₂ hybrid nanoparticles. Various kinds of nanoreinforcement particles were added into poly (vinyl butyral) (PVB)/ethanol solution. The results revealed that the films PVB/o-MWCNT/mSiO₂ and PVB/o-SWCNT/mSiO₂ yielded 101% and 141% improvement in indentation hardness together with 89% and 117% improvement in reduced elastic modulus, respectively, compared to the neat PVB film. The experiments demonstrated that the Kolon/PVB/o-SWCNT/mSiO₂ fabric sample yielded 35% improvement in absorbed energy and 50% improvement in the storage modulus compared to the Kolon/PVB sample.