Characterization of Silane Treated and Untreated Citrullus lanatus Fibers Based eco-friendly Automotive Brake Friction Composites

ABSTRACT

The need for eco-friendly materials has risen globally due to environmental consciousness. This work involved the extraction and utilization of silane treated and untreated Citrullus lanatus stem fiber for eco-friendly brake friction composites. The fibers were extracted from Citrullus lanatus plant stems using a conventional manual retting process followed by silane treatment. The silane-treated and untreated Citrullus lanatus stem fibers were analyzed for physical, chemical, and thermal characteristics. The application suitability was explored by developing brake friction composites in the form of brake pads using silane-treated and untreated Citrullus lanatus stem fiber in addition to parental ingredients by the conventional process and compared with the glass fiber-based one. The developed brake pads were analyzed for performance properties as per industrial standards. The tribological performance was measured using the Chase test following IS2742-Part-4. The test results showed that cellulose content was 60.3% for silane-treated Citrullus lanatus fibers while it was 53.7% for untreated Citrullus lanatus fibers. The normal friction properties showed that silane-treated Citrullus lanatus stem fibers-based brake pads had 0.413 while it was 0.41 for glass fiber-based brake pads and 0.392 for untreated fiber-based ones. Using a scanning electron microscope, the worn surface of Chase brake pads revealed features like plowing, plateau formations.

摘要

由于环保意识, 全球对环保材料的需求不断增加. 这项工作涉及提取和利用硅烷处理和未处理的西瓜茎纤维制备环保型制动摩擦复合材料. 采用常规手动脱胶工艺, 然后进行硅烷处理, 从西瓜茎中提取纤维. 对硅烷处理和未处理的西瓜茎纤维的物理、化学和热特性进行了分析. 通过使用硅烷处理和未处理的西瓜茎纤维以及常规工艺的母体成分, 开发刹车片形式的刹车摩擦复合材料, 并与玻璃纤维基刹车摩擦复合材料进行比较, 探索其应用适用性. 根据行业标准, 对开发的制动片进行了性能分析. 根据IS2742-Part-4, 使用Chase试验测量摩擦学性能. 试验结果表明, 硅烷处理的西瓜纤维纤维素含量为60.3%, 而未处理的西瓜纤维纤维素含量为53.7%. 常规摩擦性能表明, 硅烷处理的西瓜茎纤维基刹车片的摩擦系数为0.413, 而玻璃纤维基刹车片的摩擦系数为0.41, 未经处理的纤维基刹车片的摩擦系数为0.392. 使用扫描电子显微镜, 蔡斯刹车片的磨损表面显示出犁削、高原形成等特征.

KEYWORDS:

• Citrullus lanatus stem fiber
• natural fiber
• silane treatment
• brake pads
• Chase test

关键词:

• 西瓜茎纤维
• 天然纤维
• 硅烷处理
• 制动片
• 测试

Disclosure statement

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

Additional information

Funding

This project was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under grant No. [D-370-130-1443]. The authors, therefore, gratefully acknowledge DSR technical and financial support.