ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xinyi Meng,Chengran Qu,Hong Wang,Yanyan Lin,Ningbo Cheng,Li Liu,Jianyong Yu,Bin Ding,Xianfeng Wang
Dynamic thermal-moisture management is crucial for alleviating the “wet-cling” discomfort and heat stress during vigorous activity. However, achieving massive macroscopic deformation, rapid actuation, and intrinsic flexibility simultaneously remains challenging for smart textiles. Herein, a hierarchical structural engineering strategy utilizes a programmable moisture-responsive polyurethane to develop an adaptive moisture-responsive flap textile (MRFT). By optimizing hydrophilic soft segments and leveraging strong endogenous adhesion, the resulting moisture-responsive textile achieves an optimal mechanical-actuation balance, rapidly bending 140° within 40 s. It demonstrates exceptional interfacial durability, maintaining reversible actuation across 100 standard wash cycles. The integrated MRFT features asymmetric flaps that autonomously open under high humidity to create macroscopic ventilation pathways. This yields an outstanding water vapor transmission rate of 278.9 g m − 2 h − 1 and a minimal wet adhesion force of 1.07 cN. The MRFT efficiently dissipated heat and sweat, reducing microclimate temperature by 3.3°C and relative humidity by 39.1% versus commercial cotton during human exercise trials. This self‑regulating strategy effectively overcomes the inherent limitations of conventional textiles in sweat wicking and moisture permeability, establishing a robust paradigm for next‑generation intelligent athletic apparel.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Jingwen Wang,Xinyuan Wang,Wu Xu,Haodong Chen,Yapeng Zheng,Tianyang Cui,Chengfei Cao,Mingyuan Yan,Desheng Xu,Lei Deng,Longfei Han
Elastomeric materials are essential for emerging applications including wearable electronics, soft robotics, biomedical devices, and flexible structural components. However, bio-based polyurethane elastomers often exhibit insufficient mechanical robustness. In this study, we report a spider silk-inspired dynamic multi-hard-domain reinforcement strategy to construct a hierarchical polycaprolactone (PCL)-based polyurethane elastomer. By integrating chemically heterogeneous hard domains with distinct interaction strengths, a multilevel phase-separated network is established. Structural characterization revealed the coexistence of hard-domain aggregates and localized PCL crystalline domains, which cooperatively act as dynamic physical crosslinks that engage under deformation. This architecture enables strain-adaptive stress transfer and hierarchical energy dissipation. The resulting PIPU elastomer exhibits a tensile strength of 21.4 MPa, an ultrahigh elongation at break of 1143 %, and a fracture energy of 121.6 kJ m −2 , excellent puncture resistance and pronounced strain-adaptive mechanical behavior. These results demonstrate a versatile multi-hard-domain strategy for engineering high-performance polyurethane elastomers.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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IF 9.1
Yongxin Guo,Hongda Zhang,Jianxun Ma,Yuhan Zheng,Gang Wang,Yong Yu
CO 2 capture and storage (CCS) is an effective way to solve the problem of high CO 2 emissions caused by large-scale use of fossil energy. Conventional CCS processes usually employ ethanolamine to store and produces toxicants during high-temperature regeneration. Here a functionalized hydrogel (FMI) consisting of Pluronic F127 by crosslinking imidazolidinyl urea (IU) was prepared. The incorporation of IU enhanced the FMI affinity for CO 2 by introducing a considerable number of N H bonds. The formation of hydrogen bonds facilitated the sequestration of CO 2 and improved the stability and plasticization resistance of the FMI. Meanwhile, a production blueprint was presented for converting captured CO 2 to volatile fatty acids (VFAs) by microbial refining. The addition of Pt/Fe 2 O 3 into biorefinery promoted the metabolic process of microorganisms by providing electron donors and acceptors. The carbon utilization was up to 97.27% and the concentration of produced VFAs was 33.98 g/L. Metagenomics further illuminated the microbial mechanism and confirmed feasibility of utilizing CO 2 to produce VFAs. The integration of hydrogel CO 2 capture technique with the biorefinery process improved the utilization of industrial waste gases and efficiency of biomass conversion. This study provides a non-toxic and environmentally friendly process in industrial waste gas separation and high value utilization.
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2022
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IF 4.966
Ruyue Wang,Xingxing Chen,Yuxuan Yang,Yongliang Xu,Qiang Zhang,Yanfeng Zhang,Yilong Cheng
Hydrogels with outstanding mechanical characteristics , remoldability, and self-healability possess vast potentials in biomedical applications and flexible sensors. However, it is still difficult to prepare hydrogels with integrated mechanical characteristics straightforwardly. Herein, we proposed to introduce a hydrogen bonding reinforced factor, imidazolidinyl urea (IU), to the polymerization of acrylamide for the construction of multi-functional hydrogels in one pot. There are multiple hydrogen bonding donors and receptors in IU, which can interact with polyacrylamide through multiple hydrogen bonds to form the hydrogel networks. The break strength, fracture elongation, and compressive strength of the IU-included hydrogels could be adjusted in the range of 18.8–23.8 kPa, 305%–560%, and 2.0–3.9 MPa, respectively. The hydrogels featured outstanding fatigue resistance , and the obvious loss of compressive strength was not observed even after 50 cycles of loading-unloading under 85% strain. Moreover, the IU-based hydrogels not only showed promising self-healing and remodeling abilities but also exhibited nonconventional emission behaviors. Our work offers a facile strategy for the construction of multi‑hydrogen bond crosslinked hydrogels and may inspire researchers to explore new supramolecular systems using the hydrogen bonding reinforced factor (IU).
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高影响因子
RSC Advances
·
2021
·Vol. 11
·期 54
·34355-34368
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IF 3.361
Qiuyue Ding,Wumin Zhang,Yuanyuan Zhu,Lu Wang,Xinyuan Feng,Yanyan Xi,Xufeng Lin
Catalytic Fenton oxidation is an effective way to remove organic pollutants in water, and the performance of the catalyst is a key issue for the competiveness of this method. In this work, various supported bimetallic Pt–Cu catalysts were prepared by different impregnation methods and their performances for catalytic Fenton oxidation of aniline in water were investigated. In the different impregnation methods employed, factors including the reduction method of the metal precursor, type of catalytic support, and loading of metal were investigated. The effect of different reduction methods on actual loadings of the active components on the supported Pt–Cu catalysts showed the order of (i) H2 reduction > (ii) liquid phase methanal reduction. Meanwhile, compared with the monometallic catalysts, the Pt–Cu alloy phase (mainly in the form of PtCu3) was generated and the specific surface area was significantly reduced for the bimetallic catalysts. In the process of Fenton catalytic oxidation of aniline, it was found that most of the prepared catalysts had a certain catalytic activity for H2O2 accompanied with aniline degradation. It was found that Pt0.5Cu1.5/AC (where AC denotes activated carbon) exhibited superb catalytic activity compared with all other prepared catalysts. In particular, aniline was almost completely mineralized in a neutral solution (500 mg L−1 aniline, 0.098 mol L−1 H2O2) after 60 min at 50 °C using Pt–Cu/AC (Pt: 0.5%, Cu: 1.5%). The characterization results showed that the Pt and Cu components were rather evenly distributed on the AC support for this catalyst. More importantly, there was an obvious synergic effect on the supported bimetallic catalyst between the Pt and Cu components for the catalytic oxidation of aniline.
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PubMed
高影响因子
MACROMOLECULES
·
2023
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IF 5.5
Hui Xiong,Haitao Wu,Junqi Zhang,Shaoqi Huang,Shiyu Gu,Yujia Hou,Qi Wu,Jinrong Wu
Achieving ultrafast resilience comparable to that of irreversible cross-linking elastomers remains a formidable challenge for self-healing supramolecular elastomers. Herein, we construct a π-type tweezer structure formed by imidazolidinylurea and aromatic imine to stabilize dynamical hard domains (SDHDs) in polyurethane (PU) elastomers. SDHDs endow the dynamic PU network with high binding energy and minimal stress relaxation at room temperature, similar to irreversible covalent cross-links. As such, the elastomer demonstrates rapid resilience comparable to vulcanized natural rubber as well as high mechanical strength and toughness. Meanwhile, SDHDs can be readily activated upon heating, enabling exceptional healing ability (∼100% healing efficiency) under mild conditions (50 °C) and complete recovery of mechanical properties after recycling. More interestingly, the PU elastomer exhibits significant elastocaloric effects with an adiabatic temperature change of −13.5 °C, surpassing that of state-of-the-art vulcanized natural rubber (−9.4 °C). Therefore, this work presents a new approach for structural design that enables a balance between conflicting characteristics and expands the potential applications of self-healing supramolecular elastomers.
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高影响因子
Journal of Materials Chemistry B
·
2023
·Vol. 11
·期 47
·11251-11264
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IF 7
Xiao Wen,Zhipeng Deng,Hui Wang,Jianyang Shi,Shuang Wang,Haibo Wang,Yueming Song,Zongliang Du,Jinghong Qiu,Xu Cheng
Ionogels with both high strength and high conductivity for wearable strain and pressure dual-mode sensors are needed for human motion and health monitoring. Here, multiple hydrogen bonds are introduced through imidazolidinyl urea (IU) as a chain extender to provide high mechanical and self-healing properties for the water–borne polyurethane (WPU). The MXene/ionic liquids synergistic conductive network provides excellent conductivity and also reduces the relative content of ionic liquids to maintain the mechanical properties of the ionogels. The mechanical strength of this ionogel reached 1.81–2.24 MPa and elongation at break reached 570–624%. It also has excellent conductivity (22.7–37.5 mS m−1), gauge factor (GF) (as a strain sensor, GF = 1.8), sensitivity (S) (as a press sensor, S1 = 29.8 kPa−1, S2 = 1.3 kPa−1), and fast response time (as a strain sensor = 185 ms; as a press sensor = 204 ms). The ionogel also exhibits rapid photothermal self-healing capabilities due to the inherent photothermal behavior of MXene. It can maintain good elasticity and conductivity at low temperatures. In addition, this ionogel is able to stretch for 1200 cycles without significant change in the relative change of resistance. The ionogel can be assembled as a strain sensor for monitoring human motion and as a pressure sensor array for obtaining pressure magnitude and position information.
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PubMed
高影响因子
Bioactive Materials
·
2021
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IF 14.593
Yuxuan Yang,Xiaodan Zhao,Jing Yu,Xingxing Chen,Ruyue Wang,Mengyuan Zhang,Qiang Zhang,Yanfeng Zhang,Shuang Wang,Yilong Cheng
The treatment of diabetic chronic wounds remains a global challenge due to the up-regulated inflammation response, oxidant stress, and persistent infection during healing process. Developing wound dressing materials with ideal biocompatibility, adequate mechanical strength , considerable under-water adhesion, sufficient anti-inflammation, antioxidant, and antibacterial properties is on-demand for clinical applications. In this study, we developed a bioactive skin-mimicking hydrogel band-aid through the combination of tannic acid (TA) and imidazolidinyl urea reinforced polyurethane (PMI) (TAP hydrogel) and explored its potentials in various medical applications, including hemostasis, normal skin incision, full-thickness skin wounds, and bacterial-infection skin incision on diabetic mice. TA was loaded into PMI hydrogel network to enhance the mechanical properties of TAP hydrogels through multiple non-covalent interactions (break strength: 0.28–0.64 MPa; elongation at break: 650–930%), which could resist the local stress and maintain the structural integrity of wound dressings during applications. Moreover, owing to the promising moisture-resistant adhesiveness and organ hemostasis, outstanding anti-inflammation, antibacterial, and antioxidant properties, TAP hydrogels could efficiently promote the recovery of skin incision and defects on diabetic mice. To further simulate the practical situation and explore the potential in clinical application, we also verified the treatment efficiency of TAP hydrogel in S. aureus -infected skin incision model on diabetic mice.
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高影响因子
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