Basalt Fibre Composite with Carbon Nanomodified Epoxy Matrix under Hydrothermal Ageing.
Basalt Fibre Composite with Carbon Nanomodified Epoxy Matrix under Hydrothermal Ageing.
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DOI：
10.3390/polym13040532
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发表时间：
2021-02-11
期刊：
影响因子：
5
通讯作者：
Aniskevich A
中科院分区：
文献类型：
--
作者：
Glaskova-Kuzmina T;Zotti A;Borriello A;Zarrelli M;Aniskevich A
这项工作旨在研究混合碳纳米填料（例如，碳纳米管/碳纳米纤维的质量比为1：1）对环氧树脂基体和相应的玄武岩纤维增强复合材料（BFRC）的电性能和弯曲性能的影响。根据以下模型条件（季节），通过将测试材料完全浸入蒸馏水中进行水热老化。在环境老化之前和每个季节之后，以三点弯曲模式测量机械性能。环境老化后，环氧树脂和NC的弯曲强度和弹性模量的相对变化在10- 15%之间。对于纳米改性的BFRC，稍微更高的效果（大约）。10%）的吸收水分对弯曲特性的影响并且可能归因于更高的缺陷（例如，孔隙率、附聚物的形成等）。在弯曲测试期间，评估纳米复合材料（NC）和BFRC/NC样品的电阻。在水热老化之前和之后，UD BFRC/NC的电导率比NC高2倍和3倍，因此，揭示了导电纳米颗粒和/或其团聚体在铺层制造期间的取向，这通过混合物的规则来评估。基于所有获得的结果，可以得出结论，最有可能适用于损伤指示的是沿着纤维的UD BFRC/NC，因为全年水热老化将其电导率提高了约10%。98%，因此，监测损害的能力也得到了增强。
This work aimed to investigate the effect of hybrid carbon nanofillers (e.g., carbon nanotubes/carbon nanofibers in the ratio 1:1 by mass) over the electrical and flexural properties for an epoxy matrix and corresponding basalt fibre reinforcing composite (BFRC) subjected to full-year seasonal water absorption. Hydrothermal ageing was performed by full immersion of the tested materials into distilled water according to the following model conditions (seasons). The mechanical properties were measured in three-point bending mode before environmental ageing and after each season. Upon environmental ageing, the relative change of flexural strength and elastic modulus of the epoxy and NC was within 10–15%. For nanomodified BFRCs, the slightly higher effect (approx. by 10%) of absorbed moisture on flexural characteristics was found and likely attributed to higher defectiveness (e.g., porosity, the formation of agglomerates etc.). During flexural tests, electrical resistance of the nanocomposites (NC) and BFRC/NC samples was evaluated. The electrical conductivity for UD BFRC/NC, before and after hydrothermal ageing, was by 2 and 3 times higher than for the NC, accordingly, revealing the orientation of electrically conductive nanoparticles and/or their agglomerates during lay-up manufacturing which was evaluated by the rules of the mixture. Based on all results obtained it can be concluded that the most potentially applicable for damage indication was UD BFRC/NC along fibres since full-year hydrothermal ageing improved its electrical conductivity by approx. 98% and, consequently, the ability to monitor damages was also enhanced.
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影响因子：
1.7
作者：
Aniskevich, K.;Glaskova, T.;Jansons, J.
通讯作者：
Jansons, J.
玄武岩纤维和复合材料在腐蚀环境中的耐久性
影响因子：
2.9
作者：
Wu, Gang;Wang, Xin;Zhang, Guangchao
通讯作者：
Zhang, Guangchao
影响因子：
9.1
作者：
Bauhofer, Wolfgang;Kovacs, Josef Z.
通讯作者：
Kovacs, Josef Z.
影响因子：
9.1
作者：
Starkova, O.;Mannov, E.;Aniskevich, A.
通讯作者：
Aniskevich, A.
影响因子：
8.4
作者：
Grammatikos, Sotirios A.;Evernden, Mark;Papanicolaou, George C.
通讯作者：
Papanicolaou, George C.