Reinforcement:
Reinforcement is a consequence that will strengthen an organism's future behaviour. This strengthening results may be measured as a higher frequency of behaviour, longer duration, greater magnitude, eco-friendly and also economic.
Recently, Jute fibre is being used as a reinforcement material in the development of reinforced plastics, concretes and geo-textiles for various engineering applications. Its biodegradability, low cost, and moderate mechanical properties make it a preferable reinforcement material in the development of polymer matrix composites. Therefore, Jute Fibre Reinforced Concrete (JFRC) materials have replaced the most widely used synthetic fibre (glass, Kevlar) reinforced composites in many applications.
Modification with alkali:-
The jute fibers were cut and soaked in 1.0% (w/v) NaOH solution at ambient temperature maintaining a fiber to liquor ratio of 1:30. The fibers were kept immersed in the alkali solution for long time (48h). The alkali treated fibers were then washed several times with distilled water to remove excess alkali from the fiber surface. The final pH was maintained at 7.0. The fibers were then air dried at room temperature for 24 h followed by oven drying at 55°C for 24 h. |
Modification with polymer latex:-
Commercially available aqueous emulsion of carboxylated
styrene-butadiene copolymer based polymer latex was used to modify the jute
fibers. The solid content of undiluted polymer latex was found to be 41%.
Alkali treated jute fibers were dipped into 0.25, 0.5, and 1.0% (v/v) polymer
latex for 24 h, maintaining a liquor ratio 1:30 at ambient condition. The
fibers were then air dried at room temperature for 24 h followed by oven drying
at 55oC for 24 h.
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