A5007292940- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Polymer Nanocomposites and Properties
- biodegradable polymer synthesis and properties
- Natural Fiber Reinforced Composites
- Tribology and Wear Analysis
- Membrane-based Ion Separation Techniques
- Innovative concrete reinforcement materials
- Conducting polymers and applications
- Advanced battery technologies research
- Advancements in Solid Oxide Fuel Cells
- Fiber-reinforced polymer composites
- Electrospun Nanofibers in Biomedical Applications
- Graphene research and applications
- Polymer Nanocomposite Synthesis and Irradiation
- Supercapacitor Materials and Fabrication
- Polymer crystallization and properties
- Structural Behavior of Reinforced Concrete
- Silicone and Siloxane Chemistry
- Concrete and Cement Materials Research
- Advanced Sensor and Energy Harvesting Materials
- Graphene and Nanomaterials Applications
- Carbon Nanotubes in Composites
- Advanced Battery Technologies Research
- Lignin and Wood Chemistry
Qingdao University of Science and Technology
2018-2025
Qingdao University of Technology
2024
This study aimed to optimize the injection mold for oil production single-screw pump rubber stators. MOLDFLOW2023 analysis post-design determined optimal gate position and gating system, it also analyzed impact of key parameters on quality. The optimization led a significant improvement in product most influential factors were temperature, melt time. best settings temperature 100 °C, 70 an time 30 s, holding 10 pressure 60 MPa. resulted 1.8-2.7% decrease volume shrinkage 1.3-0.9% sink index,...
ABSTRACT In this study, the effect of γ‐(2,3‐epoxypropoxy)propytrimethoxysilane(KH560) concentration on relationship between filler and rubber matrix is investigated by using tannic acid (TA) tetraethylenepentamine (TEPA) as intermediate reaction platforms for KH560‐modified hollow microspheres (RiM02) to enhance interfacial bonding RiM02 natural (NR). process, oxidized highly reactive quinone in TA reacts with amino group TEPA a Schiff base reaction. This followed accelerating rate metal...
In this paper, the newly prepared gas diffusion layer (GDL) is investigated and characterized. The GDL mainly includes carbon paper microporous (MPL). By analysis of physical electrochemical test results, it found that performance by composite black obviously improved compared with conventional single black. This new combines characteristics two original materials has a more reasonable pore structure, which can meet good transmission reaction liquid water. Furthermore, research shows size...
Abstract In this paper, an anodic gas diffusion layer (GDL) with a gradient hydrophobic structured microporous (MPL) was prepared using spraying method. The hydrophobicity of the MPL changed by adding polyvinylpyrrolidone to close catalyst side obtain bilayer structure. By performing above operation, we designed double‐layer structure different gradients. study, analyzed effect on electrochemical performance proton exchange membrane fuel cell characterizing physical properties, such as water...
Rubber hoses are a category of rubber products that widely and intensively employed in construction sites for concrete conveying. There has been lack study to investigate the life cycle environmental economic impacts as an industrial product. In this study, we analyze four types with inner layer made different composites resist abrasion, i.e., Baseline, S-I, S-II S-III. Tests wear resistance carried out laboratory S-III shows high abrasion resisting performance conveying volume up 20,000 m3...
Abstract The newly prepared gas diffusion layer (GDL) was studied in this article. new GDL mainly includes a carbon paper and two microporous layers (MPLs) on the same side of paper. MPLs were fabricated by using conductive blacks different morphology, Vulcan XC‐72, acetylene black carbon, respectively. From results water contact angle conductivity, it found that spraying has not only good hydrophobicity but also low resistivity. Polarization curve electrochemical impedance spectroscopy...
Abstract The wear resistance of rubber composite materials has always been the focus research. will not only affect service life products and safety equipment, but also have an important impact on environment. In this work, preparation properties wear‐resistant nanocomposites based natural (NR) were studied. It is dedicated to improving NR composites. On basis, dispersibility montmorillonite (MMT) hybrid in NR‐based composites was explored. SiO 2 @MMT, @MMT@KH560, PDA@GO, MMT@GO prepared,...
In this paper, we report the preparation of a gas diffusion layer (GDL) with different gradient pore size structures. The structure microporous layers (MPL) was controlled by amount pore-making agent sodium bicarbonate (NaHCO3). We investigated effects two-stage MPL and structures in on performance proton exchange membrane fuel cells (PEMFC). conductivity water contact angle tests showed that GDL had outstanding good hydrophobicity. results distribution test indicated introducing altered...
Abstract In this paper, a multi‐layer gas diffusion layer (GDL) is designed. The GDL consists of single carbon paper backing and dual microporous layers (MPLs). Moreover, the effects thickness hydrophobicity double MPL on performance proton exchange membrane fuel cells are investigated. From test results water contact angle, conductivity, pore size distribution, polarization curve, it found that adjustment increases number 0.5 to 7 μm 20 100 pores in GDL, which more conducive discharge....
Abstract The wet skid resistance and thermal conductivity of “green tire” are the focus research. In this work, through use different types silane coupling agents, surface SiO 2 graphene oxide (GO) were grafted with amino epoxy groups, respectively. in‐situ generated was to GO by ring‐opening reaction groups. emulsion styrene butadiene rubber/natural rubber latex (ESBR/NRL) composites prepared gas assisted spray flocculation process improve dispersion performance hybrid filler. Because...
In the present scenario of development in technology, applications stretchable conductive elastomers modern electronic equipments have aroused great interest. Non-covalent bonding modification carbon nanotubes (CNTs) using dopamine has improved dispersion [email protected] and interfacial interaction with rubber matrix. The SiO2@Ag core-shell particles were prepared by coated silver nanoparticles (AgNPs) on surface SiO2 oxidation self-polymerization electroless plating process. ESBR...
In order to improve the performance of polymer fuel cells in low-humidity environments. This paper investigates anode gas diffusion layer (GDL), uses carbon black and polytetrafluoroethylene (PTFE) as conductive hydrophobic materials, NH 4 HCO 3 pore-forming agent. Anode GDL with dual MPL structure was prepared by spraying method, has gradient hydrophobicity pore-sized structure, which greatly ensures high efficiency water transport process. been tested for polarization curves, power...