JOURNAL OF APPLIED POLYMER SCIENCE
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2016
·Vol. 133
·期 39
·
IF 1.866
Pengfei Du,Haiyan Jia,Qinghua Chen,Zhen Zheng,Xinling Wang,Denglong Chen
Diels–Alder (DA) reactions between furan and maleimide have been widely applied in thermally remendable polymeric materials. Crosslinked polyurethane with DA adducts exhibited much better mechanical properties than linear polyurethane with DA adducts. However, the highly crosslinked polyurethane needs a higher temperature and a longer healing time. This will increase the possibility of side reactions proceeding during the healing procedure. In this paper, slightly crosslinked polyurethane with DA adducts was synthesized by incorporating trimethylolpropane into linear polyurethane with DA adducts. The structure of the intermediate and final products was characterized by Fourier transform infrared spectroscopy, 1 H-NMR, and differential scanning calorimetry, confirming that the synthesizing process proceeded successfully. The images from the polarizing optical microscope demonstrated that the final product with slight crosslinking needed less time and a lower healing temperature to complete the healing procedure. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43971.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qingqing Rao,Yulin Lu,Lina Song,Yang Hou,Xiaoli Zhan,Qinghua Zhang
Smart slippery liquid-infused porous surfaces (SLIPSs) have aroused remarkable attention owing to tremendous application foreground in biomedical instruments and industry. However, challenges still remain in fabricating durable SLIPSs. In this work, a fast and highly efficient self-repairing slippery surface (SPU-60M) was fabricated based on a polyurethane membrane and silicone oil. By introducing a great quantity of reversible disulfide bonds into the polymer backbone and hydrogen bonds in the polymer interchain, this SLIPS material could be quickly repaired in 15 min with 97.8% healing efficiency. Moreover, the self-healing efficiency could be maintained at 42.75% after the 10th cutting–healing cycle. Notably, SPU-60M showed excellent self-repairing ability not only in an ambient environment but also in an underwater environment and at ultralow temperatures. Besides, the icing delay time (DT) of SPU-60M could be prolonged to 1182 s at −15 °C, and the ice adhesion strength was only 10.33 kPa at −30 °C. In addition, SPU-60M had excellent anti-fouling performance with BSA adsorption of 2.41 μg/cm2 and Escherichia coli CFU counts of 41 × 104. These findings provide a facile way to design highly efficient self-repairing SLIPSs with multifunctionality.
研究领域:
材料科学
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生物医学工程
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表面科学
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产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Rui-Yu Ma,Shuang-Qin Yi,Zhi-Xing Wang,Yong-fan Lin,Run-Pan Nie,Ding-Xiang Yan,Li-Chuan Jia
Stretchable electromagnetic interference (EMI) shielding materials with self-healing ability are in high demand to guarantee the service reliability in the next-generation flexible electronic devices. However, it still remains challenging to yield highly stretchable EMI shielding materials with self-healing ability at room temperature. Herein, room-temperature self-healing poly(urethane-urea) (PUU) is first synthesized by designing disulfide and ammonium ester bonds, and then soft liquid metal (LM) is used as a conductive filler to yield highly stretchable LM/PUU composites with room-temperature self-healing ability. The LM/PUU composite with 40 vol% LM exhibits a high EMI shielding effectiveness (EMI SE) of 34.1 dB at a tiny thickness of 0.3 mm, and the EMI SE increases slightly to 36.3 dB even at 100 % strain, indicating excellent stretching stability. The self-healing efficiency is as high as 94.2 % for the LM/PUU composites after being treated at room temperature for 10 min. It is also demonstrated that the LM/PUU composites possess good thermal conductivity and Joule heating performance. This study proposes a new approach to developing highly stretchable EMI shielding materials with self-healing ability for advanced EMI shielding applications in the area of flexible and durable electronic devices.
研究领域:
材料科学
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电磁屏蔽
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高分子科学
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柔性电子学
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自修复材料
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产品关联
DOI
高影响因子
Polymers
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2025
·Vol. 17
·期 17
·2268
·
IF 4.9
Liugen Zhang,Zhanwen Cao,Zhaojun Yang,Yi Zhang,Jia Guo
Ecological restoration in arid coal-mining regions faces extreme challenges due to soil infertility, salinization, and water scarcity. This study addresses these limitations in the Santanghu Shitoumei No. 1 open-pit mine (Xinjiang), where gypsum gray-brown desert soil, minimal rainfall (199 mm/yr), high evaporation (1716 mm/yr), and persistent gale-force winds exacerbate revegetation efforts. To overcome the high cost, short lifespan, and poor practicality of commercial water-retaining agents, we developed a novel humic acid (HA) and sodium carboxymethyl cellulose (CMC) composite water-absorbing resin (HA-CMC). Optimal synthesis parameters—identified as acrylic acid (AA)–carboxymethyl cellulose (CMC)–humic acid (HA)–Acrylamide (AM)–N,N’-methylene diacrylamide (MBA)–Ammonium persulphate (APS) = 100%:15%:4.5%:25%:0.6%:0.8%—yielded effective crosslinking, confirmed via FTIR and SEM. Performance benchmarking against existing agents demonstrated superior attributes. Field application in the mine’s demonstration area significantly enhanced surface vegetation and soil fertility, confirming the resin’s potential for large-scale soil remediation and ecological restoration in arid mining environments.
研究领域:
环境科学
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土壤学
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生态工程
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矿山复垦
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
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2025
·
IF 5.7
Zhiyu Liu,Mili Tilieke,Yi Zhou,Mindi Ming,Haotian Zhang,Lei Chen,Rui Zheng,Yongsheng Jie,Xiong Shu,Juan Guan,Shengjie Ling,Xin Chen,Zhengzhong Shao
Bone defect repair demands biomaterials that synergize mechanical robustness with osteogenesis potential. The biomaterial performance of conventional crystalline calcium phosphates is often constrained by poor aqueous solubility and slow resorption kinetics. Here, we studied amorphous, hydrophilic and bioactive calcium polyphosphate (CaPP) for the development of regenerated silk fibroin (RSF)-based composite hydrogels to address such challenges. CaPP particles with tunable degrees of polymerization (DP) were synthesized via precursor ratio modulation and ion exchange. The RSF and CaPP mixture was covalently and physically crosslinked through enzyme and ethanol-treatment to yield strong and robust composite hydrogels. The mechanical properties, Ca²⁺ release kinetics and in vitro degradation behaviors of composite hydrogels demonstrated varied DP-dependencies. In vitro and in vivo osteogenesis studies confirmed the enhanced osteogenic performance for RSF-CaPP composites. This work highlights the pivotal role of CaPP with controlled chain length as a bioactive component and proposes RSF-CaPP hydrogels as promising candidates for bone function restoration.
研究领域:
生物材料
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组织工程
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生物医学工程
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材料科学
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再生医学
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产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2021
·
IF 7.086
Dan Wu,Hongshuai Kan,Ying Zhang,Tiecheng Wang,Guangzhou Qu,Peng Zhang,Hanzhong Jia,Hongwen Sun
Polycyclic aromatic hydrocarbons (PAHs) are important mutagen prevalent in the contaminated sites, bringing potential risks to human health. Iron oxides are important natural components in soils. Pyrene removal in soil using persulfate (PS) oxidation activated by microwave (MW) and magnetite (Fe 3 O 4 ) was investigated. Fe 3 O 4 significantly promoted pyrene removal in the soil; 91.7 % of pyrene was degraded within 45 min treatment. Pyrene removal rate in the Fe 3 O 4 /MW/PS system was 5.18 and 3.00 times higher than that in the Fe 3 O 4 /PS and MW/PS systems. Increasing in Fe 3 O 4 dosage, PS concentration, MW temperature, and soil moisture content in the selected range were conducive for pyrene degradation. SO 4 •− , • OH, O 2 •− , and 1 O 2 were responsible for pyrene degradation, and the conversion of Fe (Ⅱ) in the Fe 3 O 4 to Fe (Ⅲ) contributed to the formation of O 2 •− and 1 O 2 . Characteristic bands of pyrene were more obviously destroyed by the Fe 3 O 4 /MW/PS oxidation, in comparison with MW/PS oxidation. Ring hydroxylation and ring-opening reactions were the main degradation pathways of pyrene. The toxicities of the formed byproducts were significantly reduced after treatment. This study provided a promising option for pyrene contaminated soil remediation .
研究领域:
环境科学
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污染治理
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DOI
高影响因子
CORROSION SCIENCE
·
2021
·
IF 7.205
Dongdong Zhang,Feng Peng,Jiajun Qiu,Ji Tan,Xianming Zhang,Shuhan Chen,Shi Qian,Xuanyong Liu
Herein, a novel smart chemical strategy for regulating the corrosion reaction to reinforce the plasma electrolytic oxidation (PEO) coating on magnesium by amorphous MnOOH is proposed. The MnOOH film could provide PEO coating with both physical shielding and chemical active healing abilities. During corrosion process, MnOOH spontaneously reacts with the corrosion-produced Mg 2+ and OH – to form layered double hydroxides , resulting in high improvement of the long-term anti-corrosion of PEO coating. Moreover, the PEO/MnOOH coating presented a certain self-healing ability for scratches, and could be used for repairing corrosion defects on further coated films.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
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2025
·
IF 4.9
Fan Yang,Jie Wang,Jingjing Wang,Xinyue Yang,Hongyan Zhang
Quercetin (Qc) is a natural flavonoid recognized for its diverse biological activities but is poorly soluble in water. Hydroxypropyl beta-cyclodextrin (HP-β-CD), a cyclodextrin analog, serves as a safe and efficient drug carrier by forming clathrates with therapeutic agents, enhancing their physicochemical and pharmacokinetic properties. This study reports the synthesis of inclusion complexes of HP-β-CD and Qc using ultrasonic magnetic stirring followed by lyophilization. These complexes were analyzed using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and UV–Vis spectroscopy (UV), Fourier-Transform Infrared spectroscopy (FTIR), and Nuclear Magnetic Resonance (NMR) to elucidate their structural and physicochemical properties. The findings validated the successful formation of clathrates between Qc and HP-β-CD, with the resulting inclusion complexes comprising Qc/HP-β-CD demonstrating markedly distinct spectral characteristics compared to unmodified Qc. Moreover, studies revealed a substantial enhancement in the anti-inflammatory and osteogenic activities of Qc upon encapsulation. These findings demonstrate that the Qc/HP-β-CD inclusion complexes markedly enhanced Qc bioavailability while amplifying its therapeutic efficacy in inflammation and bone regeneration.
研究领域:
药理学
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材料科学
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骨生物学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2021
·
IF 10.588
Renji Zheng,Xuezhen Feng,Wensong Zou,Ranhao Wang,Dazhong Yang,Wenfei Wei,Shangying Li,Hong Chen
Both soil erosion and soil contamination pose critical environmental threats to the Chinese Loess Plateau (CLP). Green, efficient and feasible remediation technologies are highly demanded to meet these challenges. Herein we propose a unique “soil for soil-remediation” strategy to remediate the heavy metal polluted soil in CLP by converting loess into zeolite for the first time. With a simple template-free route, the natural loess can be converted into cancrinite (CAN) type of zeolite. A highly crystalline CAN was obtained via hydrothermal treatment at 240 o C for 48 h, with a precursor alkalinity of Na/(Si+Al)> 2.0. The as-synthesized CAN zeolite exhibits excellent remediation performance for Pb(II) and Cu(II) polluted soil. Plant assay experiment demonstrates that CAN can significantly restrain the uptake and accumulation of Pb(II) and Cu(II) ions in vegetables, with a high removal efficiency up to 90.7% and 81.4%, respectively. This work demonstrates a “soil for soil-remediation” strategy to utilize the natural loess for soil remediation in CLP, which paves the way for developing green and sustainable remediation eco-materials with local loess as raw materials.
研究领域:
环境科学
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土壤学
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DOI
PubMed
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 45
·455701
·
IF 3.874
Guoyong Wang,Guowen Qian,Jia Yao,Weiliang Cai,Shuping Peng,Cijun Shuai
Black phosphorous (BP) is recognized as an effective reinforcement for polymer scaffold because of its excellent mechanical property and biocompatibility. Nevertheless, its poor stability in physiological environment limits its application in bone repair. In this work, BP was modified with dopamine by self-polymerization approach (donated as BP@PDA) to improve its stability, and then was introduced into poly-L-lactic acid (PLLA) scaffold fabricated by selective laser sintering technology. Results showed the compressive and tensile strength of PLLA/BP@PDA scaffold were improved by 105% and 50%, respectively. The enhanced strength was ascribed to the increased stability of BP and the improved compatibility of BP@PDA with PLLA matrix after modifying with polydopamine. Simultaneously, the bioactivity of PLLA scaffold was significantly improved. It was attributed to that BP@PDA provided the sustained source of ions which could capture Ca2+ ions from physiological medium to facilitate in situ biomineralization, thereby promoting cell adhesion, proliferation and differentiation. This study demonstrated the great potential of BP@PDA in bone repair.
研究领域:
生物材料学
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组织工程学
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DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 44
·19184-19191
·
IF 3.288
Jing Tu,Heng Xu,Li Liang,Pingyun Li,Xiaode Guo
The problem of debonding the interface between propellant grain and propellant coating has been a tricky problem that has puzzled many scholars. Self-healing adhesives are expected to solve this problem. Herein, we studied the most widely used HTPB system in composite propellants. By adopting free radical polymerized HTPB as the soft segment of the adhesive and introducing aromatic disulfides, we successfully prepared a self-healing polyurethane adhesive. The adhesive can self-heal at a safe temperature of 80 °C, with an elongation at break of more than 700% and a self-healing efficiency of up to 97%, and has excellent thermal stability. The interface self-healing experiment showed that the adhesive can recover the debonding damage at the interface. Our results will provide a new insight into the rebonding of the interface between propellant grain and coating.
研究领域:
材料科学
·
航空航天工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Sudip Kumar Lahiri,Pengcheng Zhang,Cheng Zhang,Lin Liu
Limited robustness is a serious drawback for superhydrophobic coatings and degrades the performance of superhydrophobic surfaces in practical applications. Although fluororeagents have excellent durability for superhydrophobicity, their use has been restricted due to various health and environmental concerns. In this work, we describe a facile and efficient fabrication strategy for creating robust fluorine-free superhydrophobic composite coatings that are prepared by a simple dip-dry method, in which the H3BO3-incorporated SiO2–alkyl-silane coatings are deposited on woven cotton fabric surfaces followed by polydimethylsiloxane modification. The coated surface shows a large water contact angle of 157.95 ± 2° and a small sliding hysteresis angle (SHA) of 3.8 ± 0.6°, demonstrating excellent superhydrophobicity. The coated fabric surface also exhibited robustness and durability, withstanding a tape-peeling test (under 48.05 kPa) for around 80 repetitions and sandpaper rubbing (loaded 100 g) for 40 cycles. Furthermore, the coated fabric surface displayed self-healing and oil–water separation capacities. The developed superhydrophobic coatings in this study are robust, environmentally benign, and easy to fabricate, showing promising applications in textile industries.
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）