Jute blended fabrics fi nished with nanopolysiloxane

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jute-blended fabrics fi nished with nanopolysiloxane-based fi nishing combinations (Lakshmanan et al. 2014 ) Advances in Nanotextile Finishes An Approach Towards Sustainability 35
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(Lakshmanan et al. 2014 ). Considering the cost, the nano + macro- or nano + micropolysiloxane fi nishing combination in wet-on-wet condition on jute-based textiles could possibly decrease the cost of fi nishing with fi nishing performance that is durable. 9.9 SEM Investigation Figure 26 shows the SEM images of control and other 4 nanopolysiloxane-based fi nished jute fi bre. It is inferred that untreated jute have irregular grooves on the Fig. 26 SEM images of jute fi bre fi nished with different fi nishing combinations a control, b nano fi nished, c nano + micro fi nished, d nano + macro fi nished, e CS + nano fi nished (Lakshmanan et al. 2014 ) 36 N. Gokarneshan et al.
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surface of the fi bre, and after fi nishing, each fi nishing formulation forms a polymer fi lm on the surface of the fi bre. The coating and coverage of grooves are better in nanopolysiloxane fi nished fi bre than in other fi nishing combinations (Lakshmanan et al. 2014 ). There is greater coverage than in other fi nishing combinations, as the add-on is higher in nanopolysiloxane fi nishing. 10 Nanometal Oxides in Viscose Fabric Modi fi cation 10.1 Overview FTIR image of untreated viscose fabric as well as fabrics pretreated with 3-bromopropionic acid and then with nanometals tends to promote the reaction between the viscose fabrics and 3-bromopropionic acid. During the modi fi cation of viscose fabrics, the alkali-combining capacity values increase remarkably with the increase in the amount of 3-bromopropionic acid during the modi fi cation of the viscose fabrics, which supports the reaction between OH active group of viscose and Br halide of 3-bromopropionic acid (El-Sayeed et al. 2015 ). The ability of the introduced carboxylic groups has been shown to attract the nanometal oxides from their suspension to the fabrics. The study also shows the incapability of the 3-bromopropionic acid-treated viscose fabrics to resist microorganism s growth. A unique ability to stop growth of these microorganisms on the viscose fabric can only be attained when treated with 3-bromopropionic acid followed by after treatment with nanometal oxides. It is also obvious that the ability of nanometal-treated viscose fabrics to reduce the microbial growth is in the following order: zinc oxide > aluminium oxide > titanium (IV) oxide. 3-Bromopropionic acid has a superior antifungal activity in comparison with its antibacterial activity. The added carboxylic groups to the fabrics acts as attracting groups for the nano- metal oxides and also fi xes these nanometal oxides to the fabric. A high antimi- crobial activity has been observed even after 30 wash cycles in the viscose fabrics treated with 3-bromopropionic acid and nanometal.
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  • Fall '19
  • N. Gokarneshan

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