Abstract
This paper highlights the physical and chemical surface modifications of plant fibre (PF) for attaining suitable properties as reinforcements in cementitious composites. Untreated PF faces insufficient adhesion between the fibres and matrix due to high levels of moisture absorption and poor wettability. These conditions accelerate degradation of the fibre in the composite. It is also essential to reduce the risk of hydrophilic PF conditions with surface modification, to enhance the mechanical properties of the fibres. Fibres that undergo chemical and physical modifications had been proven to exhibit improved fibre‐matrix interfacial adhesion in the composite and contribute to better composite mechanical properties. This paper also gives some recommendations for future research on chemical and physical modifications of PF.
Highlights
Natural FibresFibres are classified according to their origin and are divided into synthetic fibre and natural fibre (NF)
Academic Editor: Giosue Boscato is paper highlights the physical and chemical surface modifications of plant fibre (PF) for attaining suitable properties as reinforcements in cementitious composites
Conclusions and Recommendations e ability of surface modification treatment for improving fibre surface properties has generated interest in employing PF with composites. e aim of using PF in composite materials can be carried out following a variety of physicochemical methods that can be applied, leading to the enhancement of interface bonding between the cellulose surface and matrix
Summary
Fibres are classified according to their origin and are divided into synthetic fibre and NF. E hemicellulose provides cementing material in the cell wall and forms a matrix surrounding the cellulose micro brils, whereas the amorphous lignin gives additional strength and coupling to the hemicellulose-cellulose network, which becomes a protective barrier in bres [15]. Synthetic bres are the most common type of bre reinforcements used in composites, the interest in NF as reinforcement has grown because of its low cost, weight reduction, nontoxicity, ease of recyclability, and biodegradability [34, 35]
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