Journal of Materials Research and Technology-JMR&T
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2026
·
IF 7.3
Xingjun Liu,Jiang Guo,Jing Shi,Wenling Ding,Xiaoyang Xu,Di Liu,Baojian Hu,Tengfei Xiang
This work investigates solid slippery surface with varying PDMS/paraffin volume ratios to address condensate-induced corrosion on Q235 steel in marine atmospheric environments. Wettability tests, water mist condensation experiments, electrochemical measurements, and COMSOL simulations were conducted to evaluate droplet dynamics and corrosion protection. Results show that increasing the PDMS ratio reduces sliding angle and promotes droplet detachment. Under condensation, high PDMS ratio (9:1) samples facilitate timely droplet shedding, reducing surface residence time and corrosion risk, whereas low PDMS ratio samples exhibit persistent wetting detrimental to anticorrosion. Electrochemical tests reveal that higher PDMS ratios decrease corrosion current density and increase impedance modulus and charge transfer resistance, with the 9:1 sample showing optimal performance. COMSOL simulations confirm that high PDMS ratio samples have smaller effective electrochemical exposure area, stronger interfacial shielding, and shorter droplet residence time. Collectively, tuning the PDMS/paraffin volume ratio effectively enhances the anticorrosion performance of solid slippery surface, offering a promising strategy for protective coatings in harsh marine environments.
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
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2025
·
IF 2.5
Chen Haodong,Wang Jinfei,Zhao Zichao,Lei Yucan,Shu Fan,Chen Quanfang
Porous structures such as the dielectric layer have been identified as an effective way to enhance the performance of capacitive tactile sensors and aerogels as three-dimensional structured materials with high porosity and excellent mechanical properties, which have been shown to have the potential to further improve the overall performance of capacitive sensors. However, the inherent low compressive modulus of elastic aerogels limits their functionality, especially when subjected to larger pressure ranges, posing a challenge for extending the working pressure range of aerogel-based sensors. In this work, we combined graphene oxide (GO) with cellulose nanofibers (CNF) and polydimethylsiloxane (PDMS) to form a composite aerogel as the dielectric layer in a capacitive tactile sensor, aiming to overcome the inherent shortcomings associated with conventional aerogels. The results demonstrated that the composite aerogels preserved high porosity and exhibited superior elastic properties to significantly enhance the overall performance of the tactile sensor. The sensor exhibits a sensitivity of up to 1.7 kPa −1 , within a working range of 80 kPa, together with a rapid response time of 46 ms and a relaxation time of 92 ms. Additionally, the sensor featured an ultra-low detection limit of 30 Pa and maintained excellent stability under continuous load cycles. The performance and the flexibility of the sensor fit well for tactile perception and wearable detection applications.
研究领域:
材料科学
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传感器技术
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2014
·Vol. 131
·期 22
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IF 1.64
Yanyan Zhang,Hong Fan,Bo-Geng Li
Advance polyamide-6- b -polydimethylsiloxane (PA6- b -PDMS) multiblock copolymers were first synthesized via the polymerization in bulk. Binary carboxyl terminated PA6 was served as the hard segment and PDMS modified with hexamethylene diisocyanate (PDMS-NCO) was the soft segment. A series of PA6 -b- PDMS copolymers based on different content and length of soft segments were obtained. Interestingly, Differential scanning calorimetry (DSC) studies revealed no obvious change in melting temperature after introducing PDMS segments to copolymers. The high melting temperatures indicated these copolymers possess potential applications in automotive industry that require high continuous use temperatures. DSC and transmission electron microscopy studies both demonstrated increasing the length and the content of the soft segment contributed to increasing of the degree of microphase separation. However, the improvement of thermal stability resulting from PDMS segments was also observed by thermo gravimetric analysis. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 41114.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
ADVANCES IN POLYMER TECHNOLOGY
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2019
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IF 2.663
Ping Peng,Yongqiang Lan,Juxiang Luo
In this work, polydimethylsiloxane (PDMS) polymeric membranes were fabricated by incorporating fumed silica nanoparticles which were functionalized with two silane coupling agents—NH2(CH2)3Si(OC2H5)3 (APTS) and NH2(CH2)2NH(CH2)3Si(OC2H5)3 (TSED)—for selective removal of ethanol from aqueous solutions via pervaporation. It was demonstrated that large agglomerates were not observed indicating the uniform distribution of modified silica throughout the PDMS matrices. It is noted that the ethanol diffusivity and the water contact angles were both increased remarkably, being beneficial to the preferential permeation of ethanol through the membranes. The pervaporation results showed that the addition of the two types of modified silica nanoparticles dramatically enhanced both the permeability and selectivity of hybrid membranes. Compared to APTS, silica modified by TSED at the concentration of 4 wt. % resulted in the optimum pervaporation membranes with the maximum separation factor of 12.09 and the corresponding permeation flux of approximately 234.0 g·m−2·h−1 in a binary aqueous mixture at 40°C containing 10 wt. % ethanol. The observation will benefit the choice of coupling agents to improve the compatibility between hydrophilic fillers and hydrophobic polymers in preparing mixed matrix membranes.
研究领域:
材料科学
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化学工程
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高影响因子
APPLIED SPECTROSCOPY
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2021
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IF 2.388
Zichen Yang,Chaoqun Ma,Jiao Gu,Yamin Wu,Chun Zhu,Lei Li,Hui Gao,Ye Zhang,Yunpeng Shang,Chengwei Wang,Guoqing Chen
Tetracycline, an animal antibiotic, may remain in milk to cause harm to human health. For economic reasons, the abuse of antibiotics is becoming more and more common. Therefore, the abuse of tetracycline has alarmed the dairy industry and many countries such as New Zealand, China, and the USA have proposed strict standards. Surface-enhanced Raman scattering (SERS) is an emerging detection method which has been applied in food detection with the advantages of no complex pretreatment, fast detection, and weak water environment interference. Considering the abuse of antibiotics in dairy industry, we used polydimethylsiloxane (PDMS) plasma cavity as SERS substrate to detect tetracycline in milk. We found that the enhancement ability of PDMS substrate is affected by addition of 4-amino-1-butanol and complex interplay in the milk--tetracycline system. The modified PDMS plasma cavity has high SERS sensitivity that allows us to achieve low detection limit of 0.28 μg/L. The correlation coefficient was 0.987. The detection of tetracycline in milk using PDMS substrate is quick (within 10 min) and it provides a possible method for in-site detection of tetracycline.
研究领域:
食品安全
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分析化学
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光谱学
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DOI
PubMed
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2020
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IF 1.701
Hai-Feng Liu,Zhu Wang,Cheng-Jun Sun
The old-fashioned yet effective trans-printing method was adopted to prepare Janus fabric in the study. Nonwoven cotton fabric was firstly immersed in tetrahydrofuran solution containing P(DMAEMA-co-TMSPMA), a polymer synthesized by copolymerization between N, N-dimethylaminoethyl methacrylate (DMAEMA) and 3-(trimethoxysilyl)propylmethacrylate (TMSPMA), followed by thermal treatment, thus endowing the fabric with the demulsification property. Next, one side of the above prepared fabric was overlapped and rolled with donor fabric containing PDMS-g-TMOS, a polymer synthesized by thiol/ene click reaction between multi-vinyl poly(dimethylsiloxane) (vinyl-PDMS) and 3-mercaptopropyltrimethoxysilane (MPTMOS). The PDMS-g-TMOS polymer infiltrated into the fabric cured with P(DMAEMA-co-TMSPMA) to a certain depth, followed by thermal treatment. Thus, the resultant fabric had both the superhyrophilic side for oil coalescence and the superhyrophobic side for oil permeation. The Janus fabric structure was confirmed by metalloscope, unidirectional water transport property (UDWT), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). When the prepared fabric was used to separate model oil hexadecane (HD) from oil-in-water emulsion, the maximum separation speed was 134.5 kg h−1 m−2. The recovery rate of HD respectively reached 96.0% after 60 min and 99.9% after 150 min. The Janus fabric prepared by the trans-printing method is particularly suitable for industrial production and of great industrial value.
研究领域:
材料科学
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环境工程
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高影响因子
CERAMICS INTERNATIONAL
·
2018
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IF 3.057
Fang Xu,Dainan Zhang,Yulong Liao,Huaiwu Zhang
Flexible electronics is attracting widely interests for next generation electronics, especially for RF application. In this work, a flexible composite film with good magnetic-dielectric properties at high frequency was synthesized. Firstly, we prepared NiCuZn ferrite particles with uniform grains (~1.57 µm) at low temperature. Results indicated that the ferrite possessed high permeability ( μ r ′ = 472.8), low loss (tanδ μ = 0.015 and tanδ ε = 0.0063) and high saturation magnetization ( M s = 61.77 emu/g). The flexible composite films were prepared by mixing the NiCuZn particles and PDMS . The microstructures, high frequency magnetic and dielectric properties of the composite films with various NiCuZn particles were investigated. Results indicated that the NiCuZn particles not only can uniformly blend with PDMS, but also improve magnetic properties of the PDMS film at high frequency. At last, the flexible composite film possessed good magnetic properties ( μ r ′ = 2.09 and tanδ μ = 0.47) and dielectric properties ( ε r ′ = 4.43 and tanδ ε = 2.32e-2) at 1 GHz. It was indicated that the flexible film can be utilized for high frequency flexible devices. The method is also a reference for developing high frequency wearable electronic devices.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
CERAMICS INTERNATIONAL
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2019
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IF 3.45
Fang Xu,Dainan Zhang,Yulong Liao,Fei Xie,Huaiwu Zhang
In this work, LiZnTiBi ferrites with high permeability (∼142@1 MHz, ∼13@1 GHz) over a wide frequency range were synthesized at low temperature. Next, the ultrafine ferrite particles were obtained by grinding, centrifugation and ultrasonic method. The flexible PDMS-based film was prepared by dispersing the ferrite particles into PDMS film by a fast curing method. The high frequency magnetic and dielectric properties of the flexible films with various ferrite particles were investigated. Results demonstrated that effect of ferrite particles on permittivity ( ε′ ) can be weakened by residual air bubbles in the flexible film, which leads to measured value lower than calculated value. Due to same permeability ( μ ′= 1) of PDMS and air bubbles, the residual bubbles have a little effect on permeability of flexible film. At last, a flexible PDMS-based film with desirable normalized characteristic impedance (Z/Z 0 = 0.95η 0 ) and miniaturization factor (n = 5.26) at 100 MHz was obtained, which can be applied to miniaturized flexible antenna. Moreover, the strategy that introducing magnetic particles and a small amount of pores into flexible film to adjust magnetic-dielectric properties is also a reference for developing other high-frequency materials for flexible electronics, especially for wearable electronics.
研究领域:
材料科学
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电子工程
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2015
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IF 5.056
Manquan Fang,Haotian Zhang,Jinxun Chen,Tao Wang,Jie Liu,Xiang Li,Jiding Li,Xingzhong Cao
Bio-inspired polydopamine has been established as a facile and versatile surface modification agent in recent years, many applications have been found such as tailoring the wettability of membrane surfaces, constructing antifouling or antimicrobial surface and serving as a platform for further modifications. To our knowledge, these applications were almost all aimed at liquid systems. For gas separations, however, polydopamine (PDA) was rarely investigated and exploited in literature. In this work, we report a facile method to fabricate ultrathin reverse-selective gas separation membranes (bigger molecules permeate more) via self-polymerization and adhesion of polydopamine onto a thin PDMS interlayer (spin-coated on a porous substrate). The as-prepared hierarchical structured membranes (PDA@PDMS) were used to selectively collect hydrocarbons from nitrogen (propylene/nitrogen as a model gas pair) with considerably enhanced separation selectivity and high gas permeance. Evidence supported that in two ways polydopamine skin layer favorably promoted the overall separation performance. Firstly, polydopamine exhibits much better affinity with propylene than that with nitrogen as indicated by gas sorption test. Secondly, owing to the excellent adhesion property and the dense structure of polydopamine, the in-situ polymerized polydopamine contributes to reducing the overall membrane thickness as well as minimizing the possible microstructural defects. Furthermore, polydopamine provides abundant functional groups for further design of membrane surface chemistry, which we believe would have good potential in other possible gas applications ( e.g., carbon capture, olefin/paraffin).
研究领域:
材料科学
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化学工程
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高影响因子
Advanced Materials Interfaces
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2022
·Vol. 9
·期 35
·2201688
·
IF 6.389
Liu-Qin Zhang,Hua-Li Li,Xiao-Hu Zhang,Qiu-Ping Li,Shu-Wen Luo,Fa-Qian Liu
Metal–organic gels or metallogels (MOGs), which usually made up with metal ions and organic ligands, are promising in the area of medicine, environment, and biology. Herein, a new metal–organic gel containing Cu + (Cu-MOG-5) is prepared at room temperature using 2-amino-5-mercapto-1,3,4-thiadiazole (AMT) and CuI. Considering the excellent low surface energy characteristics of polydimethylsiloxane (PDMS), the as-prepared Cu-MOG-5 is infused into porous PDMS to obtain Cu-MOG-5/PDMS coating, which combines the bactericidal properties of Cu + containing hydrogels and the low surface energy of PDMS. The morphology of the Cu-MOG-5 and Cu-MOG-5/PDMS coating is investigated by FE-SEM, and the structure of the new Cu-MOG-5 is verified by FT-IR, 1 H NMR, XPS, EDS, and elemental analysis. The antibiofouling properties are assessed using Escherichia coli ( E. coli ) and mussel. The results show that the newly prepared Cu-MOG-5/PDMS coating exhibits superior antibiofouling performance because of the synchronous action of hydrogel including Cu + and PDMS.
研究领域:
材料科学
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生物学
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环境科学
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DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2026
·
IF 3.6
Shihao Guo,Jiang Wang,Tengfei Shao,Weijun Zhen
This study reports a sandwich-structured composite with polypyrrole (PPy)/modified polydimethylsiloxane (PDMS) outer layers and MXene/polyvinyl alcohol (PVA) intermediate layer. The PDMS matrix contains carboxylated carbon nanotubes with Fe 3 O 4 (MWCNT@Fe 3 O 4 ), liquid metal-copper alloy (LM@Cu), carbon fibers, and expanded microspheres. PPy polymerized on PDMS enhances conductivity, while MXene/PVA acts as a reflective layer. Structural, morphological analyses, and simulation confirm the uniform dispersion of fillers, successful Fe 3 O 4 and Cu modifications, and interfacial bonding within the sandwich architecture. The composite shows 2.21 Ω cm resistivity through conductive filler interactions. EMI shielding in X-band reveals 80.57 dB total shielding effectiveness, exceeding individual components (PPy/PDMS: 43.54 dB; MXene/PVA: 5.62 dB). This results from multi-phase shielding: porous PPy/PDMS enables impedance matching and wave absorption, while MXene creates internal reflection cycles. The design achieves 93% wave absorption through gradient conductivity and magnetic-electric synergy, offering a scalable approach for flexible, lightweight shielding materials. Highlights Sandwich composite achieves high EMI shielding of 80.57 dB in X-band. PDMS matrix enhanced by MWCNT@Fe 3 O 4 , LM@Cu, and expanded microspheres. In situ polymerized PPy and MXene/PVA layer enables multi-stage shielding. Innovative design yields 93% EMI absorption and low resistivity of 2.21 Ω cm. Provides a flexible, scalable EMI shielding solution for advanced electronics.
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高影响因子
SENSORS
·
2022
·Vol. 22
·期 24
·9817
·
IF 3.847
Yifeng Huang,Yugen Chen,Fangming Deng,Xiaoming Wang
This paper proposes a flexible sensor for detecting cracks on bridges. Strain and deflection sensing modules are integrated on the film that is made of composite conductive materials. By optimizing the preparation ratio and internal structure, the strain detection accuracy and sensitivity of the sensor have been improved. The bridge crack detection accuracy reached 91%, which is higher than current sensors. Experimental results show that the composite material containing 2.23 wt% carbon black (CB) mixed hybrid filler has good linearity, higher accuracy than sensors in use, excellent stretchability (>155%), high gauge factor (GF ~ 43.3), and excellent durability over 2000 stretching-releasing cycles under 10 N. The designed flexible sensor demonstrates the practicality and effectiveness of bridge crack detection and provides a feasible solution for accurate bridge health monitoring in the future.
研究领域:
土木工程
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材料科学
·
传感器技术
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高影响因子
危险品化学品经营许可证（带存储）