Qingyong Su
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View article: Application of Mullite Nanowhisker-reinforced Polyurethane Composites in 3D Printing
Application of Mullite Nanowhisker-reinforced Polyurethane Composites in 3D Printing Open
This study discussed the application of mullite nanowhisker-reinforced polyurethane composites in 3D printing. The composite materials were fabricated via in-situ polymerization technique, with their thermomechanical properties, microstruc…
View article: Research on Intelligent Additive Manufacturing of Mullite Whiskers
Research on Intelligent Additive Manufacturing of Mullite Whiskers Open
Mullite whiskers exhibit exceptional properties such as mechanical durability, oxidative stability, low thermal expansion coefficient, high-temperature tolerance, and excellent thermal shock resistance, making them widely used in aerospace…
View article: Research on the Resourceful and Efficient Recycling Technology of Waste Thermal Insulation Pipe Material
Research on the Resourceful and Efficient Recycling Technology of Waste Thermal Insulation Pipe Material Open
This study was conducted to explore a new method for degrading and recycling waste chemical pipe insulation and cooling materials. A chemical degradation method was employed, utilizing alkali metal catalysts and a two-component alcoholysis…
View article: The Catalytic Degradation of Waste PU and the Preparation of Recycled Materials
The Catalytic Degradation of Waste PU and the Preparation of Recycled Materials Open
In this paper, we investigated the efficient metal-free phosphorus–nitrogen (PN) catalyst and used the PN catalyst to degrade waste PU with two-component binary mixed alcohols as the alcohol solvent. We examined the effects of reaction tem…
View article: Application of Whisker-Toughened Aerogel to Recycling of Used Polyurethane Sheets
Application of Whisker-Toughened Aerogel to Recycling of Used Polyurethane Sheets Open
In this study, a new environmentally friendly and efficient method for recycling and reusing waste polyurethane sheets is proposed. SiO2 aerogel was prepared using the sol–gel method, and mullite whiskers were introduced to enhance its tou…
View article: Investigating Enhanced Convection Heat Transfer in 3D Micro-Ribbed Tubes Using Inverse Problem Techniques
Investigating Enhanced Convection Heat Transfer in 3D Micro-Ribbed Tubes Using Inverse Problem Techniques Open
The improved heat dissipation observed in 3D micro-ribbed tubes is primarily influenced by the intricate interplay of multiple structural parameters. Nevertheless, research into the coupling mechanisms of these multi-structural parameters …
View article: Research on the Application of New Building Recycled Insulation Materials for Walls
Research on the Application of New Building Recycled Insulation Materials for Walls Open
In this paper, a new type of recycled polyurethane material is used as a new type of wall insulation material, and the new building insulation wall made of this paper has high efficiency thermal insulation and energy-saving characteristics…
View article: The Aging Behavior and Life Prediction of CFRP Rods under a Hygrothermal Environment
The Aging Behavior and Life Prediction of CFRP Rods under a Hygrothermal Environment Open
Carbon fiber-reinforced polymer (CFRP) composites have been widely used in civil engineering structures due to their excellent mechanical and durability properties. The harsh service environment of civil engineering leads to significant de…
View article: The Long-Term Interfacial Evolution and Prediction of Carbon- and Glass-Fiber-Reinforced Epoxy Hybrid Rods under a Hygrothermal Environment
The Long-Term Interfacial Evolution and Prediction of Carbon- and Glass-Fiber-Reinforced Epoxy Hybrid Rods under a Hygrothermal Environment Open
In order to promote the engineering applications of carbon- and glass-fiber-reinforced epoxy hybrid rods, it is necessary to fully understand its long-term hygrothermal durability. In the present study, the water absorption behaviors of a …
View article: A Darcy-Law Based Model for Heat and Moisture Transfer in a Hill Cave
A Darcy-Law Based Model for Heat and Moisture Transfer in a Hill Cave Open
A hill can be regarded as an environmental carrier of heat. Water, rocks and the internal moisture naturally present in such environment constitute a natural heat accumulator. In the present study, the heat and moisture transfer characteri…
View article: Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation
Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation Open