The Impact of Chemical Treatment of Cellulosic Fibers on Surface Properties and Matrix/reinforcement Interfacial Adhesion

ABSTRACT

This paper aims to assess the potential for the use of waste cellulosic fibers and recycled grains as materials for the development of abrasives. However, abrasive wear produces low durability and a lot of waste. The improvement of adhesion between the components of composites is the key to extending their lifetime. For this purpose, the surface of the fiber was modified by cationic reactive agents. Composites were manufactured with treated fibers, polyurethane matrix, and iron shavings as abrasive grains. To obtain this product, the coating phenomenon is maintained. DSC and TGA analysis show the thermal stability of abrasives. Contact angle and zeta potential measurements have been used to evaluate the specific surface-chemical changes imparted by surface treatments of specimens. EDX and SEM observations indicate that matrix-reinforcing particle-phase boundaries have a very important effect on the using properties of these materials and revealed that the abrasion resistance of composite is sensitive to fiber/matrix adhesion.

摘要

本文旨在评估利用废弃纤维素纤维和回收颗粒作为磨料开发材料的潜力. 然而, 磨料磨损会产生低耐久性和大量浪费. 提高复合材料组分之间的附着力是延长其使用寿命的关键. 为此, 采用阳离子反应剂对纤维表面进行改性. 用处理过的纤维、聚氨酯基体和铁屑作为磨料颗粒制备复合材料. 为了获得该产品, 保持涂层现象. DSC和TGA分析表明磨料的热稳定性. 接触角和zeta电位测量已用于评估试样表面处理引起的特定表面化学变化. EDX和SEM观察表明, 基体增强颗粒相界对这些材料的使用性能有着非常重要的影响, 并表明复合材料的耐磨性对纤维/基体的粘附性非常敏感.

KEYWORDS:

• Cationization
• adhesion
• abrasive
• fibers
• non-woven

关键词:

• 阳离子化
• 粘附
• 磨料
• 纤维
• 无纺布

Highlights

• A new type of abrasive based on natural fibers and industrial waste has been proposed and verified.

• The improvement of the interfacial adhesion between the reinforcement and the matrix is due to the chemical modification of reinforcements.

• Properties enhancement after the polishing process is achieving using the induction process.

The thermal and chemical properties of cellulosic non-woven/polyurethane resin composites were studied after cationization.

Acknowledgments

The authors thank the USCR Environmental Scanning Electron microscopy FEI Q250 Thermo Fisher, the University of Monastir for helpful technical assistance with equipment facilities. They went to thank also GEMTEX laboratory for the opportunity to do an internship and do ATG/DSC tests.

Disclosure statement

No potential conflict of interest was reported by the author(s).