MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049055 A) filed by G Ashwin Prabhu; Dr. Immanuel Durai Raj J; Mr. Jawahar Raj B; and Mr. Shrivatsav T, Chennai, Tamil Nadu, on April 17, for 'effect of e-waste reinforcement on the tribological characteristics of kenaf fiber-epoxy composites.'
Inventor(s) include Dr. Immanuel Durai Raj J; Mr. Jawahar Raj B; and Mr. Shrivatsav T.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The issue of E-waste disposal is a major concern in the world today because electronic appliances are a combination of harmful chemicals that can cause serious harm to the environment and health of people unless properly disposed. More automotive parts have however been produced in the recent past using natural fibre composites due to their low cost of production, small environmental impact, and high flexural properties. This paper has used waste printed circuit board powder as filler in kenaf fibre reinforced using an epoxy matrix. Mechanical testing showed that a 5-percentage filler of 75microns size gave a better performance. The pin-on-disc wear test was conducted to determine the best parameters that minimise the wear rate, decreased the coefficient of friction, and reduced the loss of weight utilising the Taguchi L9 orthogonal array design. The input variables were normal load, 5 N, 10 N, and 15 N; sliding velocity, 1m/s, 2 m/s, and 3 m/s; and sliding distance, 600 m, 1200 m and 1800 m, respectively. Taguchi analysis revealed that load was the significant factor affecting wear rate and coefficient of friction, whereas sliding distance was the most important factor affecting weight loss. Analysis of Variance (ANOVA) confirmation test was performed and a probability chart was created to confirm the variability of the results of the output. Fibre pull-outs, debris, matrix cracking, and debonding could be observed under a scanning electron microscope. These experimental results indicate that e-waste can be successfully used in natural fibre composite as a reinforcement filler as a potential alternative to landfill."
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