He Yadong

Development And Application Of Dry-Free Reactive Chain Extension Extrusion Foaming Technology For PET

Abstract: An innovative dry-free polyethylene terephthalate (PET) reactive foaming integrated technology was developed, which is an efficient shorter process and has significant energy saving effect. The effects of different chain extender systems on the rheological properties of PET were compared, and a modified PET with high melt elasticity was prepared through a reactive extrusion process. A new type of dry-free PET, reactive chain extension and supercritical fluid foaming integrated production line was fully developed and commercialized. Till now more than ten continuous production lines were already established for PET foam production. The PET foam products produced by the technology widely used in wind power, construction, automobile and other fields.

Biography: Supported by Program for New Century Excellent Talents in University of MOE and the New-Star of Science and Technology supported by Beijing Metropolis.

Main research field include high performance of engineering plastics and polymer processing equipments; precision molding & extrusion technology and equipment development; polymer microcellular foaming process and technology by using supercritical fluids; advanced polymer composites preparation and technology etc.

As a project leader to take charge of the national "13th Five-Year National key basic research and development plan"，"12th Five-Year National Science and technology support program" and the National Natural Science Foundation project. The completed projects included the national "eleven five" Sci & Tech support program, Beijing Natural Science Fund, the projects from Ministry of finance special support, military and other projects supported by enterprises for more than twenty items. Published more than 100 journal papers, granted more than 15 national patents.