ABSTRACT

In this paper, the development of a new composite as an abrasive material was reported. The composite was constituted of iron shavings as grains, a prepared non-woven from cellulosic fibers waste as support and a polyurethane resin as matrix. The studied composite was investigated using FT-IR spectroscopy and SEM analyses. FT-IR data confirmed that the non-woven composite was composed of cellulosic fibers and iron. SEM photos indicated that the resin was distributed on the surface of the composite and the iron grains were strongly fixed. The properties of the prepared composites were evaluated and compared with some commercial abrasives. The effect of some chemical modifications on the non-woven characteristics and on the lifetime of the prepared abrasives was studied. The concentration of the resin on the lifetime of abrasives was also discussed. The results showed that the composites made with polyurethane resin had longer life compared to some commercial abrasives. Chemically modified non-woven supports exhibited better results compared to untreated non-woven supports.

摘要

本文报道了一种新型复合材料作为研磨材料的开发。该复合材料由铁屑作为颗粒，以纤维素纤维废料制备的无纺布为载体，聚氨酯树脂为基体组成。使用 FT-IR 光谱和 SEM 分析研究了所研究的复合材料。FT-IR 数据证实无纺布复合材料由纤维素纤维和铁组成。SEM照片表明，树脂分布在复合材料表面，铁颗粒牢固固定。对制备的复合材料的性能进行了评估，并与一些商业磨料进行了比较。研究了一些化学改性对非织造布特性和制备磨料寿命的影响。还讨论了树脂浓度对磨料寿命的影响。结果表明，与一些商业磨料相比，用聚氨酯树脂制成的复合材料具有更长的使用寿命。与未经处理的非织造载体相比，化学改性的非织造载体表现出更好的结果。