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P. Wankhade et al.
5.7 SEM Analysis of Samples
The SEM images of two samples are depicted in Fig. 5. One is control sample
which is scoured with non-ionic soap solution and the other is sample treated with
peppermint oil nanoemulsion through layer by layer technique. The difference in
the SEM images of control and treated sample clearly represents the nanoemulsion
traces on the cellulosic surface of cotton fabric.
6 Conclusion
Stable oil in water nanoemulsion of peppermint oil was successfully prepared with the
help of a hydrophilic and lipophilic surfactants. The thin film fabrication process of
LBL brings about activation of functional groups on the cotton surface, thus attaching
multilayers on the fabric through ionic bonding. The increase in oil nanoemulsion
concentration and number of layers in the LBL technique has been found to boost
the multifunctional properties of cotton fabric. The electrostatic bond formation due
to the employment of polyelectrolytes in the LBL technique has led to an increase
in oil deposition on the cotton fabric surface, thus improving the durability of the
finish.
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