SURFACE MODIFIED COIR AND ITS APPLICATIONS -A REVIEW
DOI:
https://doi.org/10.63746/njtd.v22i2.3386Keywords:
Cocos nucifera, Acetylation, Hydrophobic coatings, MercerisationAbstract
Coconuts (Cocos nucifera) are frequently cultivated in tropical locations for their fruits. The rising desire for sustainable, renewable, biodegradable, and recyclable materials has led to greater usage of coir fibre-reinforced bio-composites generated from coconut husks. Although these husks and shells are frequently disposed of as garbage, they may be important raw materials for manufacturing eco-friendly bio-composite materials utilized in diverse applications, including insulation, building, and automotive sectors. Coir fibres exhibit good mechanical and thermal characteristics. However, their hydrophilic nature generally restricts their application in industrial settings unless proper surface modification techniques such as acetylation and mercerization are employed, coupled with hydrophobic coatings produced from natural or synthetic latex. This article offers an overview of coir fibre's chemical, physical, mechanical, and thermal characteristics. It also analyses numerous surface modification methods performed by different researchers, their influence on coir's thermo-physical and mechanical properties, and identifies the practical uses for each approach.
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