Researchers From The National University Of Singapore (Nus) Have Made A Significant Contribution Towards Resolving The Global Issue Of Plastic Waste, By Creating A Way To Convert Plastic Bottle Waste Into Aerogels For Many Useful Applications.
Researchers from the National University of Singapore (NUS) have made a significant contribution towards resolving the global issue of plastic waste, by creating a way to convert plastic bottle waste into aerogels for many useful applications.
Plastic bottles are commonly made from polyethylene terephthalate (PET), which is the most recycled plastic in the world. The PET aerogels developed by the NUS-led research team using plastic bottle waste – a world’s first – are soft, flexible, durable, extremely light and easy to handle. They also demonstrate superior thermal insulation and strong absorption capacity. These properties make them attractive for a wide range of applications, such as for heat and sound insulation in buildings, oil spill cleaning, and also as a lightweight lining for firefighter coats and carbon dioxide absorption masks that could be used during fire rescue operations and fire escape.
This pioneering work was achieved by a research team led by Associate Professor Hai Minh Duong and Professor Nhan PhanThien from the Department of Mechanical Engineering at NUS Faculty of Engineering. The technology to produce PET aerogels was developed in collaboration with Dr Xiwen Zhang from the Singapore Institute of Manufacturing Technology (SIMTech) under the Agency for Science, Technology and Research (A*STAR).
Recycling plastic bottle waste
Plastic waste is toxic and non-biodegradable. Such waste often ends up in oceans and landfills, affecting marine life and causing problems such as groundwater contamination and land scarcity. Globally, the annual consumption of plastic bottles has been rising steadily, and it is expected to exceed half a trillion tons per year by 2021.
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