棉短绒非织造布吸油性能测试与评价

Testing and evaluation of oil absorption performance in non-woven cotton linters

棉短绒属于天然纤维,纤维长度短,在纺织上的应用有限,但是其具有廉价、可降解的优势,因而在油液污染处理方面受到重视。以棉短绒为主体原料,利用针刺工艺制备棉短绒非织造布,以吸油倍率、保油率、芯吸高度3个指标评价棉短绒非织造布絮片对不同油液的吸油性能。结果发现,棉短绒非织造布吸油倍率在9.37~19.25 g/g,保油率在83.62%~98.84%,芯吸时间60 min时,基本达到稳定,表现出油液快速上升、缓慢爬升和芯吸高度稳定这3个阶段,非织造布经纬向及油液性能差异导致芯吸高度略有差异。

Cotton linters are natural fibers and have limited application in textile industry due to their short fiber length. However, they have become a hotspot in the field of oil pollution treatment because they are cheap and degradable. The cotton linters are treated as the mainraw material, and different non-woven cotton linters are fabricated by the acupuncture process. Three indicators including oil absorption rate,oil retention rate, and wicking height are measured to evaluate the oil absorption performance of non-woven cotton linters to different oils. Theresults show that the oil absorption and retention rates of non-woven cotton linters are approximately 9.37~ 19.25 g/g and 83.62~ 98.84%,respectively. The stable state is 60 minutes of wicking time in the nonwovens and consists of three stages including the rapid rise in oil, slowclimb of oil, and final state of high wicking stability. These phenomena are affected by the slightly different wicking heights of the warp and weft directions of the non-woven material, and differences in the oil properties.