A General Chain Lubrication Strategy for Ultra-Stretchable Polyacrylate Elastomers DOI
Guojun Zheng, Wenjie Xiong, Yiting Xu

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 22, 2024

Polyacrylate elastomers have enormous application potential in various fields. However, facile and universal synthetic strategies remain rare for ultrastretchable polyacrylates (especially those with extension ratios ≥50) that are adaptable to building blocks. Here, we develop a novel chain lubrication strategy reduce the interchain friction improve slip of polymer chains during deformation. By constructing soft, hard, quaternary ammonium segments, fabricate (extension up 323) through emulsion polymerization film casting, using surfactants (QASs) as emulsifiers. The lubricating mechanism QASs is explored by varying chemical structures QASs, it demonstrated enhance fluidity while forming eutectics segments construct physical cross-linking sites networks. We also demonstrate successful synthesis variety replacing soft hard segment monomers or surfactants, confirming effectiveness generalizability strategy. promises pioneer new methods fabricating highly ductile advancing industrial rubbers.

Language: Английский

Regulation of Hard Segment Cluster Structures for High‐performance Poly(urethane‐urea) Elastomers DOI Creative Commons
Jianliang Qin, Yifei Chen, Xiwei Guo

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(22)

Published: April 11, 2024

Abstract Elastomers are widely used in daily life; however, the preparation of degradable and recyclable elastomers with high strength, toughness, excellent crack resistance remains a challenging task. In this report, polycaprolactone‐based poly(urethane‐urea) elastomer is presented mechanical properties by optimizing arrangement hard segment clusters. It found that long alkyl chains chain extenders lead to small evenly distributed clusters, which beneficial for improving properties. Together multiple hydrogen bond structure stress‐induced crystallization, obtained exhibits strength 63.3 MPa, an toughness 431 MJ m −3 outstanding fracture energy 489 kJ −2 , while maintaining good recyclability degradability. believed holds great promise various application fields it contributes development sustainable society.

Language: Английский

Citations

18
Design of experiments and statistical approach on tensile properties of simple-pique fabrics for potential use in composite reinforcement DOI
Thiago F. Santos, Caroliny M. Santos, H. Jeevan Rao

et al.

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01321 - e01321

Published: Feb. 1, 2025

Language: Английский

Citations

1
Recent progress in biocompatible miniature supercapacitors DOI Open Access
Pingping Luo, Qing Liu, Rui Chen

et al.

Energy Materials, Journal Year: 2025, Volume and Issue: 5(7)

Published: March 10, 2025

With the advancement of wearable and implantable health medical electronics, biocompatible miniature energy storage devices were developed rapidly. In particular, supercapacitors (BMSCs) have advantages conventional supercapacitors, such as high-power density, fast charging/discharging rate, long operating lifetime, well strong selectivity materials. They are expected to play an important role in personalized electronic integration systems. Biocompatibility involves biosafety materials relates mechanics geometrical forms. For example, BMSCs should be thin compact, ensuring ease portability comfort for users. also flexible stretchable conform skin or tissue, providing stable power electronics even under deformation. Furthermore, biodegradability/ bioabsorbability ensures they both body- environment-friendly. This review summarizes recent research progress devices, including basic requirements selection components. Additionally, advanced applications multifunctional systems real-time monitoring treatment introduced, along with associated challenges prospects.

Language: Английский

Citations

1
A lignocellulosic biomass-derived polyurethane elastomer with high toughness and excellent crack tolerance DOI
Xiwei Guo, Kun Zhang,

Yue Dong

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(32), P. 20967 - 20974

Published: Jan. 1, 2024

A tough and recyclable polyurethane elastomer was successfully synthesized from liquified banana stems.

Language: Английский

Citations

4
Ultra-robust Single-Ion Conducting Composite Electrolytes for Stable Li-Metal Batteries DOI

Zhaowei Song,

Sheng Zhao,

Xinyuan Shan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

With significantly high lithium-ion (Li+) transport efficiency, single-ion conducting polymer electrolytes (SIPEs) often suffer from low ionic conductivity due to the covalently bonded anions backbone. Adding plasticizers SIPEs improve usually reduces matrix's mechanical robustness, negatively affecting overall performance as solid electrolytes. Herein, surpass such a trade-off relationship, we successfully designed composite membrane (c-SIPM60) with cross-linked linear and incorporated glass-mesh substrate, which shows cation number close 1, ultrahigh tensile strength of 22 MPa (modulus 547.3 MPa), 1.2 × 10–4 S/cm at 25 °C. The resultant Li/c-SIPM60/Li symmetric cell showed stable cycling up 1200 h, LiFePO4/c-SIPM60/Li presented good reversibility C/10. Meanwhile, additional lithium salts, cationic-transport (c-HTPM60) was increase retained Li+ efficiency. LiFePO4/c-HTPM60/Li exhibited capacity retention >75.6% after 700 cycles This work provides new insights into designing simultaneously tLi+, conductivity, affording effective for energy storage systems.

Language: Английский

Citations

0
Advanced Materials Research at CUHK: From Biomedicine to Electronics and Beyond DOI
Chuanbin Mao

Advanced Materials, Journal Year: 2025, Volume and Issue: 37(2)

Published: Jan. 1, 2025

This special issue spans a diverse array of topics, including nanomedicine, tissue engineering, regenerative medicine, organs-on-chips, biosensing, soft robotics, smart devices, nanofabrication, energy saving and storage, catalysis, spintronics, electronics, neuromorphic computing. It showcases the breadth depth advanced materials research at Chinese University Hong Kong (CUHK), highlighting innovation, collaboration, excellence CUHK's scientists.

Language: Английский

Citations

0
Highly elastic and tear resistant elastomers for stretchable electronic sensors based on 3D printing DOI Creative Commons

Pengdi Cui,

Youjie Rong,

Zhuang Zhao

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Additive manufacturing elastomers are highly favored for their significant potential applications in the field of wearable electronics. However, there still limited photocured that can satisfy requirements printability and high performance vat photopolymerization (VPP) 3D printing. In this study, a class photosensitive polyurethane acrylate was designed synthesized. Isophthalic dihydrazide with hydrazide group chosen as chain extender. The reaction isocyanate to generate acylsemicarbazide (ASCZ) could provide abundant strong hydrogen bonds crosslinked network elastomer, which significantly affects state microphase separation elastomer. It is discovered ASCZ may improve elastomer's mechanical characteristics. This allows polyurethane's tensile strength strain at break reach maximum 8.9 ± 0.3 MPa 460% 17%, respectively, demonstrating exceptional resilience fatigue resistance. Furthermore, photocurable elastomer containing Lithium bis((trifluoromethyl)sulfonyl)azanide conductive material compatible VPP‐based digital light processing technology, allowing resolution be 50 μm. not only customize manufacture sensing equipment but also accurately sensitively monitor human movement signals. Highlights has transmittance 92%. bond endows good tear resistance (79.9 kJ/m 2 ). elongation 470%. residual under 100% 15%, showing elasticity. sensor prepared by wide working range.

Language: Английский

Citations

0
Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers DOI Creative Commons

Sang Hyun Han,

Jun Hyuk Shin,

Hak Jun Yang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 12, 2024

The shapes and structures of stretchable interconnects are pivotal in determining their functionality, allowing them to withstand bending, stretching, twisting while maintaining operational integrity. However, all subjected dynamically changing, non-uniform strains during mechanical deformation. Therefore, achieving an accurate understanding interconnect properties, including tracking analyzing these dynamic, real-time, remains a challenging endeavor. Herein, method for the strain behavior using chiral liquid crystal elastomer (CLCE), which exhibits immediate structural color changes nano periodic molecular arrangement response dynamic stretching deformations, is presented. Beyond uniform change simple CLCE, by further engineering modulus shape geometry serpentine intuitive capturing visualization changing performed. Moreover, expanding CLCE into 2 × array, real-time distribution under various multi-stretching properties (uniaxial biaxial) investigated. This optical provides precise structure conditions promising breakthrough enable enhanced design optimization broadband applications.

Language: Английский

Citations

0
A General Chain Lubrication Strategy for Ultra-Stretchable Polyacrylate Elastomers DOI
Guojun Zheng, Wenjie Xiong, Yiting Xu

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 22, 2024

Polyacrylate elastomers have enormous application potential in various fields. However, facile and universal synthetic strategies remain rare for ultrastretchable polyacrylates (especially those with extension ratios ≥50) that are adaptable to building blocks. Here, we develop a novel chain lubrication strategy reduce the interchain friction improve slip of polymer chains during deformation. By constructing soft, hard, quaternary ammonium segments, fabricate (extension up 323) through emulsion polymerization film casting, using surfactants (QASs) as emulsifiers. The lubricating mechanism QASs is explored by varying chemical structures QASs, it demonstrated enhance fluidity while forming eutectics segments construct physical cross-linking sites networks. We also demonstrate successful synthesis variety replacing soft hard segment monomers or surfactants, confirming effectiveness generalizability strategy. promises pioneer new methods fabricating highly ductile advancing industrial rubbers.

Language: Английский

Citations

0