Effect of Carboxylic CNTs Filling on Mechanical Behaviors of Basalt Fiber/Epoxy Composites

Zhi Ming Yang; Jin Xu Liu; Xin Ya Feng; Shu Kui Li; Xin Lei Wang; Yong Ji Gao

doi:10.4028/www.scientific.net/MSF.913.529

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HomeMaterials Science ForumMaterials Science Forum Vol. 913Effect of Carboxylic CNTs Filling on Mechanical...

Effect of Carboxylic CNTs Filling on Mechanical Behaviors of Basalt Fiber/Epoxy Composites

Abstract:

In order to improve the mechanical properties of basalt fiber/epoxy composites, carboxylic CNTs were filled into the epoxy matrix of basalt fiber/epoxy composites. Firstly, the carboxylic CNTs filled epoxy composites with different carboxylic CNTs content were studied. Quasi-static and dynamic compression results show that when the content of carboxylic CNTs increased from 0wt% to 1wt%, both ultimate quasi-static and dynamic compressive strength of CNTs filled epoxy composites showed increasing tendencies. However when the content of carboxylic CNTs increased from 1 wt% to 1.5 wt% both ultimate quasi-static and dynamic compressive had decreasing tendencies. Base on above results, carboxylic CNTs (1wt%) filled basalt fiber/epoxy composites were fabricated by mould pressing method. Quasi-static and dynamic compression results showed that both ultimate quasi-static and ultimate dynamic compressive strength of carboxylic CNTs filled basalt fiber/epoxy composite were enhanced compared with those of basalt fiber/epoxy composites without CNTs. However, the critical failure strain were all lower than those of basalt fiber/epoxy composites without CNTs. Failure mechanism analysis showed that the carboxylic CNTs was beneficial for forming good interfacial bonding between epoxy matrix and basalt fibers, and the advantage of high axial tensile strength of basalt fibers could be fully utilized, which is responsible for the enhanced ultimate compressive strength of carboxylic CNTs filled basalt fiber/epoxy composites.

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Materials Science Forum (Volume 913)

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529-535

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.913.529

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Online since:

February 2018

Authors:

Zhi Ming Yang, Jin Xu Liu*, Xin Ya Feng, Shu Kui Li, Xin Lei Wang, Yong Ji Gao

Keywords:

Basalt Fiber, Carboxylic CNTs, Composites, Compression Properties, Failure Mechanism

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