Scientists at the Institute of Advanced Study in Science and Technology (IASST), Guwahati, have developed an environmentally friendly lubricant formulation that significantly enhances friction reduction, wear resistance, and overall performance. This sustainable alternative to conventional lubricants addresses both efficiency and environmental concerns, making it a key current affairs topic for competitive exams like UPSC, SSC, and Banking.
Need for Sustainable Lubricants
Environmental Challenges
Lubrication is essential for reducing friction and wear in machinery, ensuring efficiency and longevity. However, conventional mineral or synthetic oil-based lubricants pose significant environmental risks, including pollution and resource depletion. This has driven the demand for sustainable alternatives that balance performance with eco-friendliness.
Innovative Formulation
Graphitic Carbon Nitride and Castor Oil
Researchers at IASST, under the Department of Science and Technology, formulated a lubricant by integrating surface-modified graphitic carbon nitride (g-C3N4) into bio-based castor oil. Led by Prof. Devasish Chowdhury, with contributions from Ujjibit Boruah, Bitupan Mohan, and Dr. Nabajit Dev Choudhury, the team enhanced compatibility by modifying g-C3N4 nanosheets with octadecyltrichlorosilane (OTCS), improving dispersibility and stability.
Performance Enhancements
Tribological and Thermal Improvements
Tribological evaluations revealed remarkable improvements in the lubricant’s performance:
- Friction reduction by approximately 54%.
- Wear volume decrease by 60.02% compared to castor oil alone.
- Higher load-bearing capacity and greater thermal stability, with the oxidation onset temperature rising from 320°C to 339°C.
Additionally, toxicity assessments confirmed minimal free radical formation, making the formulation safe for environmentally sensitive applications.
Significance of the Development
Green Technology Impact
Prof. Chowdhury stated, “This sustainable lubricant formulation not only enhances mechanical performance but also aligns with global efforts toward green and efficient lubrication technologies.” Published in ACS Applied Nano Materials, this breakthrough highlights India’s advancements in green technology and sustainable innovation.
Relevance for Competitive Exams
Study Resource for Aspirants
The development of this sustainable lubricant by IASST Guwahati is a significant current affairs topic for competitive exams. Topics like green technology, environmental sustainability, and scientific advancements are frequently tested in exams like IAS, IBPS, and RRB. Aspirants can stay updated with GKboard.in for concise, exam-focused current affairs content.