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ABSTRACT
In this work, the effects of fabric weight, needling density, and blend proportion of nettle and polypropylene (PP) fibers on diesel engine oil and crude oil sorption were studied. Needle-punched nonwoven fabric samples were prepared as per Box and Behnken experimental design. Highest crude oil sorption (23.59 g/g) and diesel engine oil sorption (17.02 g/g) of the fabric were obtained at nettle/PP (30/70) needle-punched nonwoven with lower needling density and lower fabric weight. Further, oil retention capacity of nettle/PP (30/70) needle-punched nonwovens and other factors influencing the oil sorption behavior of textile substrates such as stirring speed, salinity, temperature, and hydrophobicity-oleophilicity were investigated. From the reusability test, it is noted that the sorption capacity of nettle/PP (30/70) nonwoven fabric after the eighth cycle was 9.15 g/g and 8.45 g/g against crude and diesel engine oil, respectively. From this study, it is concluded that nettle/PP (30/70) can be efficiently used for removal of oil spill.
摘要
本文研究了织物重量、针刺密度、荨麻与聚丙烯纤维掺量对柴油机油和原油吸附性能的影响.根据箱式和贝恩肯实验设计，制备了针刺非织造布样品.该织物的最大原油吸附量（23.59 g/g）和柴油机机油吸附量（17.02 g/g）是在针刺密度较低、织物重量较低的荨麻/聚丙烯（30/70）针刺非织造布上获得的.进一步研究了荨麻/聚丙烯（30/70）针刺非织造布的保油性能，以及搅拌速度、盐度、温度、疏水性亲油性等因素对织物吸油性能的影响.通过重复使用性试验，发现第八次循环后，荨麻/聚丙烯（30/70）非织造布对原油和柴油机油的吸附量分别为9.15g/g和8.45g/g.从本研究中可以得出结论，荨麻/聚丙烯（30/70）可以有效地用于清除溢油.
Acknowledgments
The authors thank M/s University Grant Commission (UGC), Government of India, for Sponsoring this Project under UGC Major Research Scheme (F.No-43-158/2014). The authors are also thankful to M/s PSG TECHS COE INDUTECH, PSG College of Technology, Coimbatore, India, for providing facilities to carry out the needle-punching process.