Sustainable Characterization of Silane Treated and Untreated Psidium Guajava Stem Natural Fibers Based Automobile Brake Pads

ABSTRACT

The present study deals with the extraction and characterization of untreated and silane-treated natural fibers from stems of Psidium guajava (Guava plants) for automobile brake pad applications. The extraction of fibers was done from the Psidium guajava plant stems by the retting process followed by silane treatment. The untreated and silane-treated Psidium guajava fibers were analyzed for chemical, physical, and crystalline properties. These fibers were used in the brake pad composite developed using conventional industrial processes and analyzed for various performance characteristics as per industrial standards. The tribological performance of the developed brake pads was measured using the Chase test following IS 2742 Part-4 of 1994

or SAE J661:2012. It was found that silane-treated Psidium guajava fibers had acrystalline index of 42%, while it was 27% for untreated Psidium guajava fibers. The brake pads developed using silane-treated Psidium guajava fibers showed ahigher hardness of 99, while it was 90 for untreated Psidium guajava fibers proving better results upon the usage of silane-treated Psidium guajava fibers in brake pads. Scanning Electron Microscope studies of Chase tested brake pads that elucidated the plateau formations and back transfers.

摘要

本研究涉及从番石榴（番石榴属植物）茎中提取和表征未经处理和硅烷处理的天然纤维，用于汽车制动片. 从番石榴植物茎中提取纤维是通过脱胶工艺，然后进行硅烷处理. 对未经处理和硅烷处理的番石榴纤维的化学、物理和结晶性能进行了分析. 这些纤维用于使用传统工业工艺开发的制动片复合材料中，并根据工业标准分析各种性能特征. 根据IS 2742 1994年第4部分的要求，使用追逐试验对开发的制动片的摩擦学性能进行了测量或SAE J661:2012. 发现经硅烷处理的番石榴纤维的结晶指数为42%，而未经处理的番石榴纤维的结晶指数为27%. 使用经硅烷处理的番石榴纤维开发的制动片显示出较高的硬度99，而未经硅烷处理的番石榴纤维的硬度为90，证明在制动片中使用经硅烷处理的番石榴纤维的效果更好. 对经过蔡斯测试的制动片进行的扫描电子显微镜研究阐明了平台形成和背部转移.

KEYWORDS 关键词:

• Psidium guajava fibers, 番石榴纤维
• natural fibers, 天然纤维
• silane treatment,, 硅烷处理
• brake pads, 制动片
• chase test, 追逐试验

Acknowledgments

The authors would like to thank OHM Engineering (FCTS), Chennai, and Green Composites Technologies and Solutions, Madurai, for helping in fiber extraction, characterization, development, and characterization of brake pads.