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首页> 外文期刊>Journal of Applied Polymer Science >Open-cell polypropylene/polyolefin elastomer blend foams fabricated for reusable oil-sorption materials
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Open-cell polypropylene/polyolefin elastomer blend foams fabricated for reusable oil-sorption materials

机译：为可重复使用的吸油材料制造的开孔聚丙烯/聚烯烃弹性体共混泡沫

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The fabrication of high-performance oil sorbents is of great significance for oil spill cleanup. The main objective of this study was to prepare open-cell polypropylene/polyolefin elastomer (PP/POE) blend foams for fabrication of reusable sorbents for oil sorption. Open-cell PP/POE blend foams were prepared via continuous-extrusion foaming using supercritical carbon dioxide as the blowing agent. The interconnected open-cell structure was characterized by scanning electron microscopy. The hydrophobicity and lipophilicity of PP/POE open-cell foams were revealed by tests of contact-angle measurement, water and cyclohexane sorption on the foam surface, CCl4 and cyclohexane sorption in water, and oil/water separation. Further, the sorption tests indicated that PP/POE blend foams showed larger oil-uptake capacities than pure PP foams. In addition, cyclic compression tests showed that PP/POE open-cell foams had excellent ductility and significantly improved recoverability compared to pure PP foams. In cyclic sorption-desorption tests, the sorption kinetics was studied in terms of capacity and saturation time, showing that PP/POE foams kept larger sorption capacities for 10 cycles, with larger sorption rates and good reusability. Based on the high open-cell content, the good hydrophobic and oleophilic properties, the high oil-sorption capacity, the improved recoverability, the large sorption rate, and the good reusability in cyclic oil-sorption performance, the PP/POE open-cell foams have shown promise as potential oil sorbents in applications for oil spill cleanup. (C) 2016 Wiley Periodicals, Inc.
机译：高性能吸油剂的制造对溢油清理具有重要意义。这项研究的主要目的是制备开孔聚丙烯/聚烯烃弹性体（PP / POE）共混泡沫塑料，用于制造可重复使用的吸油剂。通过使用超临界二氧化碳作为发泡剂的连续挤出发泡制备开孔PP / POE共混泡沫。互连的开孔结构通过扫描电子显微镜表征。 PP / POE开孔泡沫的疏水性和亲脂性通过接触角测量，泡沫表面上水和环己烷的吸附，水中CCl4和环己烷的吸附以及油/水分离的测试得以揭示。此外，吸附测试表明，PP / POE共混泡沫比纯PP泡沫具有更大的吸油能力。此外，循环压缩测试表明，与纯PP泡沫相比，PP / POE开孔泡沫具有出色的延展性并显着提高了可回收性。在循环吸附-解吸测试中，从容量和饱和时间方面研究了吸附动力学，结果表明PP / POE泡沫在10个循环中保持了较大的吸附容量，具有较大的吸附速率和良好的可重复使用性。由于开孔含量高，疏水性和亲油性好，吸油量高，可回收性提高，吸附率大，循环吸油性能可重复使用性好，PP / POE开孔泡沫在溢油清理应用中显示出潜在的吸油剂潜力。 （C）2016威利期刊公司

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