Qianhan Liu

Title: Qianhan Liu: Innovating Flame-Retardant Polyester Fibers in Suzhou

Introduction

Qianhan Liu is an accomplished inventor based in Suzhou, China, recognized for his contributions to the field of chemical fibers. With two patents to his name, Liu is at the forefront of developing innovative flame-retardant materials that enhance safety and performance in various applications.

Latest Patents

Liu's most recent patents demonstrate his expertise in creating advanced polyester fibers. His first patent focuses on a flame-retardant polyester fiber and its preparation method. This innovative fiber is produced by spinning flame-retardant polyester and exposing it to ultraviolet light, achieving a limiting oxygen index value greater than 30. The unique preparation process enhances the flame-retardant properties by using 2-carboxyethylphenylphosphinic acid, which improves both the heat-resistant temperature and anti-dripping performance of the polyester fiber.

His second patent involves industrial polyester and its method of preparation. This polyester is synthesized through the esterification of terephthalic acid and ethylene glycol, with a polycondensation process catalyzed by a mixture of magnesium ethylene glycol and antimony ethylene glycol. The resulting polyester boasts stringent quality specifications, including a carboxyl end group concentration of less than 15 mol/t and a mass percentage of oligomers lower than 0.5%.

Career Highlights

Qianhan Liu is currently employed at Jiangsu Hengli Chemical Fibre Co., Ltd., where he continues to push the boundaries of polyester development. His work is integral to the company’s mission of providing high-performance fiber solutions across various industries.

Collaborations

Throughout his career, Liu has collaborated with notable coworkers, including Lili Wang and Lixin Yin. Together, they contribute to innovative projects that enhance the capabilities of polyester fibers, ensuring that their advancements meet industry standards and customer expectations.

Conclusion

Qianhan Liu's innovative work in flame-retardant polyester fibers positions him as a key figure in the textile industry. His patents not only reflect his dedication to improving material safety but also his commitment to advancing technology in the field. His contributions continue to influence the development of high-performance fibers, ensuring a safer future for various applications.