WHO and Environment protection agencies have reported that the trending brake pad materials are harmful to human health. These materials (Asbestos and Kevlar) produce toxic gases when used in brake pad composites. It is a cause of lung cancer, mesothelioma, affects the respiratory system, and causes many diseases. It has been causing many million people's death. Kevlar (aramid) is the trending material used in the brake pads. So, it is necessary to find a substitute for these toxic elements. In this direction synthetic fiber has been replaced by natural fiber. The main aim of this study is to find a substitute for asbestos and synthetic fibers (Kevlar) in brake friction material. There are very few comparative studies of Kevlar and natural fiber-based reinforced polymer composites. In this research Abaca fiber and Kevlar fibers have been reinforced

Recently many research studies have revealed the increasing importance of natural fiber in modern applications. Natural fibers are used these days in many important sectors like medical, aerospace, agriculture, and so forth. The cause of increasing the application of natural fiber in different fields is its ecofriendly behavior and excellent mechanical properties. In the research work, date palm, a natural fiber, is used to replace asbestos and Kevlar, which are very harmful to the human body. There are very few papers on comparative study of natural fiber-based composites to actual brake friction material. In this study, new brake pad composites of date palm fiber are developed and compared with Kevlar-based brake pad composites. The different percentages (5%-20%) of date palm fiber and Kevlar (5-10) were used to compare the study.The date palm fiber composites have given maximum better results on 5% composition for the mechanical, tribological, physical, and chemical proprieties.

This research article has developed a novel composite material using natural fiber and PAN fiber. The study aims to remove harmful materials from the composites on the market these days. Asbestos and aramid fiber has good properties and is used in those composites where good mechanical properties are needed. However, using these materials causes many environmental issues and harms humans and other animals. There are very rare studies of PAN and natural fiber based hybrid composites. So Grewia optiva, which has good mechanical properties, and PAN fiber, which has good tribological properties, has been used to develop composites. The percentages of both materials were taken (4-16 wt%) with other ingredients such as phenolic resin, G. optiva fiber, PAN fiber/Kevlar, and lapinus ceramic, potassium barium, titan, mica, and ceramic. The developed composites have shown physical, mechanical, and tribological properties.

Recently, natural fibers have shown their importance in certain kinds of composites. The trending composites are mostly made using organic fiber due to their good eco-friendly nature, their easy availability, and reasonable cost. Natural fibers are replacing synthetic fibers in every field. In this research article, natural fibers like bamboo fiber and PAN fiber have been utilized to develop a new kind of hybrid composite and compared to aramid fiber reinforcement. The brake pads were fabricated with the inclusion of various percentages of mass of bamboo fibers and PAN fiber (3%-12%) with an equal ratio of Aramid fiber (3%-6%) in the hydraulic hind brake molding device. The chemical, mechanical, physical, tribological, and thermal properties were evaluated.

The world is gradually looking for waste material properties and finding a way out of using it as secondary raw materials for other industrial purposes because of increasing environmental understanding and guidelines on controlling industrial waste. In the present world, the researcher’s primary aim is to enhance the usage of environmentally friendly materials and protect the environment. This research proves the possibility of using wood sawdust ash (WSDA) partially replace clay and sand manufacturing bricks. This paper used WSDA obtained from controlled combustion to replace other construction materials for bricks. The feasibility study used WSDA as an admixture with five distinct replacement levels, 5%, 10%, 15%, 20%, and 25%, for non-modular bricks (230×110×70) mm. The brick was evaluated for various strength parameters to authenticate clay bricks’ compressive strength, efflorescence, and water absorption properties. The findings revealed that the compressive strength of WSDA bricks (11.01 N/mm2) is higher than fly ash-cement-based and burnt clay bricks, which are 6.93 N/mm2 and 9.56 N/mm2. Also, the water absorption is (31%) lower than clay burnt bricks.