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Wear, morphological and thermal behavior of flax fibre reinforced epoxy composites

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Title Wear, morphological and thermal behavior of flax fibre reinforced epoxy composites
 
Creator Kumar, S M Vinu
Singh, Harwinder
 
Subject Alkali treatment
Chemical treatment
Dry sliding wear
Flax fibre
Silane treatment
Surface treated fibres
 
Description 326-335
Effect of different types of chemical treatments, viz. alkali (NaOH) treatment, trimethoxymethylsilane(Silane) treatment,
and combination of both alkali and silane treatment on structural and thermal properties of flax fibres has been investigated by
means of scanning electron microscopy (SEM), X-Ray diffraction and thermogravimetric (TGA) analysis. Besides, flax fibre
reinforced epoxy composites (FFRECs) comprising 45wt.% of fibre reinforcement have been subjected to multi-pass dry
sliding wear test and experimental runs are conducted as per Taguchi design of experiment technique. Crystallinity index (CI)
value of 54.85 is found for alkali-cum-silane (AST) treated fibre, which is 39.23 % and 29.79 % higher than that of untreated
(UT) fibre and silane treated (ST) fibre respectively. However, a very mere difference in CI values is observed between alkali
treated (AT) and AST fibres. TGA study shows that UT fibre is thermally stable up to 240°C and this stability is enhanced to
310°C owing to chemical alteration as exhibited by AST fibre. Microhardness test indicates minor improvement in the hardness
property of the treated FFRECs over the untreated composites. Wear test results reveal that chemically modified FFRECs offer
better wear resistance than untreated FFRECs and the mechanisms endured by the composites are exposed by SEM. Amongst
the prepared FFRECs, silane-treated FFREC exhibits better wear resistance property. Furthermore, the findings of analysis of
variance (ANOVA) show that applied load and sliding distance contribute significantly to wear volume loss of FFRECs.
 
Date 2023-10-11T06:02:30Z
2023-10-11T06:02:30Z
2023-09
 
Type Article
 
Identifier 0975-1025 (Online); 0971-0426 (Print)
http://nopr.niscpr.res.in/handle/123456789/62732
https://doi.org/10.56042/ijftr.v48i3.6057
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJFTR Vol.48(3) [September 2023]