Results 61 to 70 of about 241,122 (250)

A novel bioactive nano-composite: synthesis and characterisation with potential use as dental restorative material [PDF]

, 2009
PhDIt is desirable for a dental restorative material to have bioactive and bonding properties. This study focuses on the synthesis of a covalently-linked polyurethane/nanohydroxyapatite (PU/nHA) composite and evaluates its chemical, physical, thermal ...
Khan, Abdul Samad
core   +4 more sources

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

Molecular Mobility of Soft Segment of Polyurethane Elastomers under Elongation [PDF]

, 2008
. In this study, we investigated molecular mobility of a soft segment in the poly(oxypropylene) glycol (PPG), 4,4'-diphenylmethane diisocyanate (MDI) and 1,4-butane diol (BD)-based polyurethane elastomers (PUE) with and without elongation by dynamic ...
Ken Kojio, Shimada, Makoto, Furukawa, Mutsuhisa, Mutsuhisa Furukawa, A. Jeffrey Giacomin, Giacomin, A. Jeffrey, Albert Co, Makoto Shimada, Ralph H. Colby, Leal, Gary L., Kojio, Ken, Motokucho, Suguru, Suguru Motokucho, Co, Albert, Colby, Ralph H., Gary L. Leal   +15 more
core   +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

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

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

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

Bio-based polyurethane for road engineering applications: A comprehensive review

Journal of Road Engineering
With the escalating global emphasis on environmental conservation and sustainable development, enhancing the service quality and durability of road surfaces and facilitating the green development of highways have commanded considerable attention.
Qingxu Li, Zengping Zhang, Zhongbao Shi, Yekun Zhang, Xiaoyi Ban, Hao Liu   +5 more
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Thermal conductivity of gas mixtures for polyurethane rigid foams [PDF]

, 2009
Mestrado em Engenharia QuímicaA temática do presente trabalho insere-se na procura de agentes expansores mais eficientes para espumas de poliuretano.
Varanda, Catarina Daniela Gonçalves Pinto
core