Basic Information
Name: Yadong He
Gender: Male
Department: College of Mechanical and Electrical Engineering
Email：heyd@mail.buct.edu.cn
Education/Academic Credentials: Ph.D
Office Location: No.306 Jixie building
ORCID：0000-0002-7618-0023
DBLP:
Research direction:
The main research directions are heat and mass transfer enhancement of high viscosity polymers, polymer supercritical fluid foaming, and fiber reinforced thermoplastic composites. In the direction of polymer foaming in supercritical fluids, the quantitative mechanism of the crystalline structure of polypropylene on the pore morphology was first clarified [1], and a new strategy for shear flow induced orientation control of PP foaming performance [2] was proposed, establishing a quantitative relationship between the molding foaming process and the pore structure; Derive a mathematical model for the thermal boundary layer of the melt, laying a theoretical foundation for the design and development of a core type melt cooler [3,4]. Established the relationship between the topological structure of PET molecular chains, rheological properties, and foaming properties [5]; We have designed a series of extrusion molding equipment that integrates non drying, reaction modification, and supercritical foaming, and achieved large-scale application of technology. In the field of fiber reinforced thermoplastic composites, a melt impregnation model based on Darcy's law and Reynolds equation has been further developed [6,7], achieving the serialization and industrial application of long fiber reinforced (LFT) technology, and successfully applying this model to the design of continuous fiber reinforced (CFRP) equipment and process optimization.
Introduction:
He Yadong, PhD, professor, doctoral supervisor.
In 2011, he was awarded the title of New Century Excellent Talent by the Ministry of Education, and in 2005, he was awarded the Beijing Science and Technology New Star Program. Research team have undertaken more than ten national and provincial research projects, including the National Key Basic Research and Development Program, the National Natural Science Foundation of China, and the National Science and Technology Support Program, as well as more than 40 technological developing projects with industry enterprise. Published over 200 scientific articles, obtained more than 30 patents and authorizations, and won 5 provincial and ministerial level scientific and technological progress awards.
Research:
By organizing and participating in a series of international and domestic academic conferences, establish a wider range of academic and technical communication channels. As a member of the PFC organizing committee, we hosted the PolyFoam Conference held in Shanghai in 2018 and 2019, and gave academic presentations. The conference has been successfully held for six sessions, but was cancelled in 2020 due to the pandemic. As the chairman of the conference, I successfully organized the 2018 International Symposium on Advanced Polymer Foam Technology held in Wuxi, Jiangsu, and delivered a conference report. More than 400 attendees from the United States, Japan, Germany, and China attended the conference, making it the largest polymer professional foam conference organized in China. As the Vice Chairman of the Polymer Foaming and Porous Materials Professional Committee of the International Society for Advanced Materials and Manufacturing Engineering (SAMPE), I participated in the organization of the First Polymer Foaming and Porous Materials Summit Forum held in Fuzhou in August 2020 and delivered a conference report. According to statistics, our team has organized and participated in at least 12 domestic and international academic conferences in the past three years.
Extensive international academic exchanges have been conducted, and close academic contacts have been established with ExxonMobil, Honeywell, Sabic, SK from South Korea, Nordic Chemical, JPP from Japan, PPI from the United States, and IMRE from Singapore. Substantive scientific research cooperation has also been carried out with most of these institutions.
We have established joint research and development centers with multiple domestic enterprises to promote the transformation of technological achievements. In October 2020, Beijing University of Chemical Technology Pilot Base was established in Nanjing Chuangbo. The enterprise invested over 20 million yuan to construct pilot testing equipment for efficient devolatilization, thermoplastic composite materials, supercritical fluid foaming, and lightweight material preparation, laying a solid foundation for the industrialization of our research and development technology. Through preliminary communication and exchange, in November 2020, Anhui Dongyuan New Materials Co., Ltd. successfully established the "China Construction Research Dongyuan Polyester Lightweight New Materials R&D Center" at the research and development base, and introduced the national research institution - China Academy of Building Sciences. The two sides jointly carried out the application technology and product development of polyester lightweight materials for the construction industry. In 2019, a joint research and development base was established in Runxiang, Anhui, to develop foam and composite material related application technologies and products for automotive lightweighting.
Teaching:
《Theory and equipment of polymer processing》
《design of material processing machinery》
《information retrieval and scientific paper writing》
《principles and new technological progress of polymer processing》
Funding:
National and provincial level:
1. Key technologies for continuous extrusion foaming process and foaming material forming, national key research and development plan
2. Evaluation of mixing performance and study on the mechanism of shear tensile alternating flow field in a three screw extruder, funded by the National Natural Science Foundation of China
3. Research and industrialization of key technologies for food safety and energy-saving packaging materials and products, national science and technology support plan
4. Research on the preparation of polymer microfiltration materials using micro foaming technology and the mechanism of foam pore connectivity, funded by the Beijing Natural Science Foundation
5. Advanced design platform and key structural technology research for precision plastic injection molding equipment, supported by the Science and Technology Support Program of the Ministry of Science and Technology of China
Projects from enterprises:
1. Carbon fiber self driving infiltration mechanism and continuous preparation technology of nylon advanced composite materials, China National Petroleum Corporation
2. Development of pharmaceutical series twin-screw extrusion technology, Nanjing Deteng
3. Development of continuous extrusion molding technology for PET foam sheets, Anhui Dongyuan
4. Development of physical foaming continuous extrusion blow molding technology, Suzhou Tongda
5. Development of Lightweight PET Materials and Key Preparation Technologies for Building Materials, Huajiang, Hangzhou
6. Key Technology Development of New Foam Injection Molding Unit for Thermoplastic Elastomers, Xuyang, Beijing
Publications:
[1] Study on Chain Extension Blending Modification and Foaming Behavior of Thermoplastic Polyamide ElastomerACS Omega（4.132）2023, 8(11): 9832-9842
[2] Establishment of fiber bundle broadening model on mechanical rollers (in Chinese)Acta Materiae Compositae Sinica（2.261）2023, 41(0): 1-9
[3] Study on Fiber Fracture during Melt Impregnation Process of Continuous Glass Fiber Reinforced Polypropylene Prepreg Tape (in Chinese)China Plastics（1.494）2022, 36 (6): 69-76
[4] Chain extension of thermoplastic polyamide elastomer and its foaming performanceJournal of Applied Polymer Science（1.616）2022, 139(22): 52233
[5] Fundamental influences of propylene‐based elastomer on the foaming properties of high melt strength polypropylene based on extrusion foamingPolymer Engineering & Science（2.014）2022, 62(12): 3973-3984
[6] Effect of Impregnation Mold Structure on Long Glass Fiber Reinforced Polypropylene Prepreg (in Chinese)Fiber composite materials（0.754）2022, 39 (01): 22-08
[7] Isothermal crystallisation ATP process for thermoplastic composites with semi-crystalline matrices using automated tape placement machineComposites Part B: Engineering（7.566）2021,227(15): 109381
[8] Study on Chain Expansion Reaction and Foaming Behavior of Thermoplastic Polyamide Elastomer (in Chinese)China Plastics（1.494）2021, 35(10): 14-20
[9] Theoretical Model of Residence Time for Continuous Fiber Impregnation Composite Processing of Polyamide (in Chinese)Journal of Beijing University of Chemical Technology（1.024）2021, 48(05): 41-49
[10] The Effect of Mold Structure on the Properties of Continuous Fiber Reinforced Thermoplastic Composite Materials (in Chinese)Journal of Beijing University of Chemical Technology（1.024）2021, 48(03): 26-38
Awards:
1. Beijing Higher Education Teaching Achievement First Prize, September 2013, Provincial and Ministerial Level, First Prize
2. Polymer precision extrusion technology and equipment, September 2019, provincial and ministerial level, first prize of China Petroleum and Chemical Federation
3. Complete set of equipment technology for supercritical fluid extrusion foaming series, social science and technology award, first prize
4. Key Technologies for Continuous Preparation and Application of PET Lightweight Structural Core Materials for Wind Power, 2023-01-01, Social Science and Technology Award, First Prize
5. Environmental friendly halogen-free flame retardant modified molding technology of polystyrene foam, 2022-03-01, social science and technology award, second prize
6. Research and Application of Key Technologies for Efficient Preparation of Low Carbon and Environmentally Friendly Organic Insulation Materials, January 1, 2023, Social Science and Technology Award, Second Prize
7. Polymer precision extrusion molding technology and equipment, social science and technology awards, first prize
8. Development and research of ultra-high molecular weight polyethylene single rod extruder and pipe products, provincial and ministerial level science and technology award, third prize