TPO, as one of the emerging roofing waterproofing membranes, has rapidly gained popularity in North America over the past decade. This new material has become one of the most cost-effective and durable membranes for single ply roof. However, further research is needed to enhance the flame retardancy of TPO waterproofing membranes and meet the 25-year service life requirements under the new regulations in China.

Mr. Hu Quanchao, focused on the achievements of NEXCEL project in his presentation and emphasized that through systematic research on synergistic flame retardant systems and antioxidant systems, they have produced the modified TPO waterproof sheets that meet high flame retardancy and long service life requirements, and have been applied to the Science Hall of Western China (Chongqing) Science City. Furthermore, he discussed the dual anti-aging effects of nano materials (magnesium hydroxide/graphene oxide) on TPO and the preparation of nano-modified TPO composites, providing important references for the industry in researching the thermal aging of waterproofing materials and their service life.