Vanillin-Based Polyol Combined with Castor Oil to Fabricate Water-Borne Polyurethane with Recyclability and Self-Healing Properties for Fluorescent Ink and Flexible Sensor Applications DOI
Yuehong Zhang, Ruijing Liu, Zhenqiang Wu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(46), P. 16834 - 16846

Published: Nov. 2, 2024

The development of environmentally friendly WPUs with sustainable biobased feedstock, repairability, recyclability, and multifunctionality is highly attractive desirable. Herein, a vanillin-based polyol (VP) containing dynamic Schiff base bonds was synthesized via one-step reaction. rigid VP combined flexible castor oil, acting as polyols, to produce waterborne polyurethanes (BWPU). obtained BWPU material simultaneously possessed tunable mechanical properties (tensile strength up 11.49 MPa, elongation at break reached 169.04%), high thermal stability (T5 > 240 °C), self-healing (20 min 150 remolding (3 h chemical degradation (1 mol/L HCl solution), demonstrating excellent in-service performance an closed-loop recycling feature. Interestingly, the exhibited obvious fluorescent properties, which can be used ink for information security. Furthermore, by incorporating conductive Ag nanowires, potential application wearable sensors explored, prepared AgNW/BWPU pressure sensitive sensing ability quick responsiveness (100 ms), monitor both subtle movements large human movements. This work provides strategy achieving repairable recyclable fluorescence properties.

Language: Английский

Dual dynamic network structures of recyclable epoxy resins with high strength and toughness via sacrificial hydrogen-bonding clusters and imine bonds: surpassing the strength-toughness trade-off DOI

Cheng-wang Shi,

Xiaodong Li, Xufeng Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152361 - 152361

Published: May 18, 2024

Language: Английский

Citations

8
Thermomechanical characterisation of reprocessable, siloxane-based, glass-fibre-reinforced vitrimers DOI
Virginia Amfilochiou, Tapas Debsharma, Ives De Baere

et al.

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 276, P. 111354 - 111354

Published: March 1, 2024

Language: Английский

Citations

7
Curing Behavior and Properties of Active Ester Cured Cycloaliphatic Epoxy Resins DOI
Jiaming Liu,

Jingjing Qin,

Xiaohua Cui

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(13), P. 5977 - 5985

Published: March 19, 2024

Cycloaliphatic epoxy resins are known for their synthesis process that eliminates hydrolyzable chlorine, thus avoiding the hydrolysis of chlorine to hydroxyl groups in conventional epoxies, which is very favorable preparation low dielectric resins. The curing using active ester generates no groups, also indicating a promising approach producing However, resistance cycloaliphatic nucleophilic reactions restricts it from reacting usually only with anhydrides. This study investigates reactivity epoxy, demonstrating its capability undergo complete at temperatures near 150 °C. Factors influencing this process, including volatilization catalyst DMAP and reactivity, examined. Two types epoxies (3,4-epoxycyclohexylmethyl-3′,4'-epoxycyclohexane carboxylate (EEC) bis (3,4-epoxycyclohexylmethyl) adipate (BEA)) combined an hardener, triacetyl resveratrol (TAR), prepare activation energies determined, optimal concentration 4-dimethylaminopyridine (DMAP) identified each resin. use catalysts specific concentrations results superior mechanical properties (91.7 71.4 MPa EEC/TAR BEA/TAR), excellent thermal stability (Td5% 354 347 °C), good (dielectric constant 3.68 3.95 10 MHz), outperforming anhydride-cured These findings expand selection hardeners highlight potential prepared electronic packaging materials, offering enhanced suitable various applications.

Language: Английский

Citations

7
Recyclable azine polyurethane thermosets and carbon fiber reinforced composites with excellent thermostability and mechanical properties DOI

Jinshi Han,

Wei Zhang, Mengjie Wei

et al.

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 284, P. 111693 - 111693

Published: July 3, 2024

Language: Английский

Citations

6
Vanillin-Based Polyol Combined with Castor Oil to Fabricate Water-Borne Polyurethane with Recyclability and Self-Healing Properties for Fluorescent Ink and Flexible Sensor Applications DOI
Yuehong Zhang, Ruijing Liu, Zhenqiang Wu

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(46), P. 16834 - 16846

Published: Nov. 2, 2024

The development of environmentally friendly WPUs with sustainable biobased feedstock, repairability, recyclability, and multifunctionality is highly attractive desirable. Herein, a vanillin-based polyol (VP) containing dynamic Schiff base bonds was synthesized via one-step reaction. rigid VP combined flexible castor oil, acting as polyols, to produce waterborne polyurethanes (BWPU). obtained BWPU material simultaneously possessed tunable mechanical properties (tensile strength up 11.49 MPa, elongation at break reached 169.04%), high thermal stability (T5 > 240 °C), self-healing (20 min 150 remolding (3 h chemical degradation (1 mol/L HCl solution), demonstrating excellent in-service performance an closed-loop recycling feature. Interestingly, the exhibited obvious fluorescent properties, which can be used ink for information security. Furthermore, by incorporating conductive Ag nanowires, potential application wearable sensors explored, prepared AgNW/BWPU pressure sensitive sensing ability quick responsiveness (100 ms), monitor both subtle movements large human movements. This work provides strategy achieving repairable recyclable fluorescence properties.

Language: Английский

Citations

6