Journal of Fibre & Textile Research
Vol. 31, June 2006, pp. 262-266
Soma Samajpati & Surajit Sengupta
Received 14 January 2005; accepted 4 April 2005
Wettability of long vegetable fibres like jute, ramie, sisal, flax and sunhemp with different binders, such as polyvinyl acetate (PVAc), phenol formaldehyde (PF) and polyester (PET) resin has been determined and compared. Contact angles of different fibre-binder systems have been determined by Sissilidrop method and the wetting parameters such as specific work of adhesion, specific wettability and spreading coefficient calculated. It is observed that the wettability depends on properties of binder and fibre. Polyester resin shows significantly lower wettability than PVAc and PF resins. Additive like diammonium phosphate or urea decreases wettability of PVAc. Among the different fibres studied, ramie shows the highest wettability and sisal the lowest.
Keywords: Specific work of adhesion, Spreading coefficient, Vegetable fibres, Wetting characteristics
IPC Code: Int. Cl.8 D01C1/00