Results 41 to 50 of about 184,156 (264)

Preparation and Properties of Polyurethane Foam Grouting Material Modified by Waterglass [PDF]

长江科学院院报
[Objective] Grouting has been recognized as an effective solution for water inrush treatment in underground engineering. Organic grouting materials such as polyurethane (PU) are strongly adhesive but expensive,whereas inorganic grouting materials such as
WANG Lei-yu, XIAO Bi, ZHENG Xiao-kang, SHAO Xiao-mei, CHEN Liang
doaj   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

Advanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk, Elisabeth Keck, Alberto López‐Grande, Delia S. Brauer, Tobias Fey   +4 more
wiley   +1 more source

Preparation and Properties of Polyurethane Nano - inorganic Composite Environmentally Friendly Building Materials

Chemical Engineering Transactions, 2017
Waterborne polyurethane is a polyurethane binary collagen system with water as the dispersion medium. It has the advantages of environmental protection, strong adhesion, high hardness, good flexibility, good air permeability and non-flammable. Therefore,
Xiufang Yan, Yongxiang Zhu, Guofu Zhang, Zesong Zhu, Xiaorui Chen   +4 more
doaj   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Molecular dynamics insights into temperature effects on polyurethane-aggregate adhesion: comparative analysis of SiO2 and CaCO3

Frontiers in Built Environment
In this study, molecular dynamics was used to investigate the adhesion properties between polyurethane and aggregate and to reveal the adhesion mechanism between polyurethane and aggregate.
Haihong Zhang, Yan Zhang, Xiaowei Feng, Xiaowei Feng, Yanxiang Gao, Tengfei Yao, Tengfei Yao   +6 more
doaj   +1 more source

The Use of Polyurethane Injection as a Geotechnical Seismic Isolation Method in Large-Scale Applications: A Numerical Study

Geosciences, 2021
This paper analyses the effect of polyurethane injections on the seismic surficial response of cohesionless soils. For this purpose, dynamic finite element numerical analyses were performed through GiD + OpenSees. Both the soil and the composite material,
Michele Placido Antonio Gatto, Valentina Lentini, Francesco Castelli, Lorella Montrasio, Davide Grassi   +4 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

Study on the Properties of Silicon-Modified Polyurethane Anticorrosion Coating

Chemical Engineering Transactions, 2017
Polyurethane anticorrosion coating has been widely used as a metal coating material in recent years, but it has some shortcomings in hydrophobicity, heat resistance and hardness.
Liqin Yang, Huarong Yan, Dongfeng Li, Yinfeng Li, Zhiju Zhao   +4 more
doaj   +1 more source