Fengwen Sun

Title: Innovations of Fengwen Sun in Nanocomposite Fiber Membrane Materials

Introduction

Fengwen Sun is a notable inventor based in Nanjing, China. He has made significant contributions to the field of materials science, particularly in the development of nanocomposite fiber membrane materials. His innovative approach combines bio-based materials with advanced processing techniques to create high-performance filtration solutions.

Latest Patents

Fengwen Sun holds a patent for a "Preparation method for nanocomposite fiber membrane material based on bio-based liquefied formaldehyde resin." This patent describes a method that involves processing a bio-based raw material through a phenol/polyethylene glycol complex liquefaction process. The process includes divalent alkali metal hydroxide high ortho-position induction synthesis resinification and modification with polyvinyl alcohol to create a spinnable precursor known as PVA-BLF. Using a coaxial electrospinning device, PVA-BLF serves as a core layer while a titanium dioxide dispersion acts as a shell layer, resulting in a PVA-BLF/TiO nanocomposite fiber membrane material. The average diameter of the fibers ranges from 150 to 450 nm, with a specific surface area of 500 to 700 m/g. The material exhibits over 60% porosity and a fracture elongation of 5.5% to 6.5%, showcasing excellent filtration and regeneration performance, making it suitable for water and air purification applications.

Career Highlights

Fengwen Sun has worked at Nanjing Forestry University and Aica Nanjing Co., Ltd. His experience in these institutions has allowed him to advance his research and development efforts in innovative materials.

Collaborations

Fengwen has collaborated with notable colleagues, including Yundan Dong and Zhang Zhang. Their joint efforts have contributed to the advancement of research in nanocomposite materials.

Conclusion

Fengwen Sun's work in developing nanocomposite fiber membrane materials represents a significant advancement in filtration technology. His innovative methods and collaborations continue to influence the field positively.