A New Self‐Healing Green Polymer Gel with Dynamic Networks for Flow Control in Harsh Reservoirs DOI Open Access
Chuanhong Kang, Jixiang Guo, Wyclif Kiyingi

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Abstract Hydrogels are widely used in flow control of underground reservoirs, a self‐healing situ cross‐linked polymer gel system with dynamic covalent adaptive network and disulfide bond is designed constructed cystine hydrochloride containing as green cross‐linking agent. The polyacrylamide/cystine can form at temperatures above 110 °C, the bonds make hydrogels have excellent toughness properties maximum value 57.5 MJ m −3 , efficiency reach 88%. At same time, storage modulus more than 2000 Pa addition nano SiO 2 . formulated using formation water stable 170 °C for 270 days. modulated flooding experiment results show that new effectively reduce content increase recovery rate by 32.2%. damage test shows average plugging 95%, permeability less 15%. This replace existing toxic systems prioritize fluid harsh reservoir conditions.

Language: Английский

Recyclable fire-retardant bio-based thermosets: From molecular engineering to performances and applications DOI Creative Commons
Yong Guo, Qingshan Yang, Siqi Huo

et al.

Progress in Polymer Science, Journal Year: 2025, Volume and Issue: unknown, P. 101935 - 101935

Published: March 1, 2025

Language: Английский

Citations

0

Synergistic Optimization of Cohesive Energy and Adhesive Force by Regulating End‐Capping Catechol and Chain Extender 4‐Aminophenyl Disulfide Toward Enhancing Bonding Strength of Hot‐Melt Polyurethane DOI Open Access
Zhiying Zhao, Peixin Niu, Yifang Zhao

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

ABSTRACT Vehicles and electronics rely on detachable reusable hot‐melt adhesives, but they are hard to reach structural bonding strength date. In this work, a strategy reconciling cohesive energy adhesion force was developed overcome the trade‐off relation between bulk strength. Specifically, prepolymer of polytetrahydrofuran ether glycol (PTMEG) capped by isophorone diisocyanate (IPDI) deliberately extended different content 4‐aminophenyl disulfide (AD) 3,4‐dihydroxybenzaldehyde (DBD), aiming at manipulating chain length thereafter aggregation state. It found that adhesive PU‐PAD1.4 has reached an ideal balance cohesion adhesion. This not only boasts high possesses re‐adhesion capabilities also demonstrates exceptional performance variety metal substrates, especially aluminum, where its reaches up 12.13 MPa. Moreover, self‐healing feature is particularly remarkable, as it can recover 98.28% original mechanical properties after being heated 80°C for just 30 min, which mainly due rapid reorganization hydrogen bonds. With outstanding toughness strength, PU‐PADx offers innovative solutions environmentally friendly high‐precision processing industries.

Language: Английский

Citations

0

Insights into the Effect of Segment Rearrangement Induced by Dynamic Disulfide Bond on UV Aging Resistance of UV-induced Self-compensated Epoxy Crosslinked Network DOI
Mingli Wang, Ziyu Liu, Tiancheng Wang

et al.

Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111352 - 111352

Published: March 1, 2025

Language: Английский

Citations

0

Biomass-Driven Composites with Integrated Hydrophobicity, mechanical Resilience, and enhanced conductivity for underwater sensing and adhesion DOI
Yizhen Li, Yi Shen,

Hailing Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162054 - 162054

Published: March 1, 2025

Language: Английский

Citations

0

Recent advancements in the design and application of Thioctic acid-based self-assembled materials DOI
Lu Zhang,

Qiu-Ying Deng,

Lei Zhou

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 537, P. 216679 - 216679

Published: April 11, 2025

Language: Английский

Citations

0

A New Self‐Healing Green Polymer Gel with Dynamic Networks for Flow Control in Harsh Reservoirs DOI Open Access
Chuanhong Kang, Jixiang Guo, Wyclif Kiyingi

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 20, 2024

Abstract Hydrogels are widely used in flow control of underground reservoirs, a self‐healing situ cross‐linked polymer gel system with dynamic covalent adaptive network and disulfide bond is designed constructed cystine hydrochloride containing as green cross‐linking agent. The polyacrylamide/cystine can form at temperatures above 110 °C, the bonds make hydrogels have excellent toughness properties maximum value 57.5 MJ m −3 , efficiency reach 88%. At same time, storage modulus more than 2000 Pa addition nano SiO 2 . formulated using formation water stable 170 °C for 270 days. modulated flooding experiment results show that new effectively reduce content increase recovery rate by 32.2%. damage test shows average plugging 95%, permeability less 15%. This replace existing toxic systems prioritize fluid harsh reservoir conditions.

Language: Английский

Citations

2