COMPOSITES COMMUNICATIONS
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2025
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IF 7.7
Ran He,Zhenguo Wang,Yalin Ni,Chang Cui,Zhao-Xia Guo,Baohua Guo,Xinlin Tuo
Developing carbon fiber (CF) composites that integrate flexibility, strength and extreme environmental adaptability has emerged as a new challenge, holding strategic significance for advanced high-tech fields. However, conventional polymer resins (e.g. polyurethane) employed in flexible CF composites exhibit inherent performance limitations in meeting the above requirements. Herein, heterocyclic aramid (HA), which has good flexibility and strength, inherent temperature resistance and good flame retardancy, is developed to prepare CF composites with carbon fabrics by solution impregnating and layer-by-layer stacking technique. The interfacial adhesion of the composites was evaluated at three different dimensions (fiber/HA, yarn/HA and fabric/HA) using microbond, yarn pull-out, and T-peeling tests. The flexural strength and modulus measured at three different temperatures (−55 °C, room temperature and 200 °C) show only a slight variation, revealing low and high temperature applicability. Dynamic impact testing showed that the composite with a high HA content has excellent impact toughness. The limiting oxygen index (LOI) is greater than 80 %, showing excellent flame retardancy. The composites are thermally stable up to 450 °C. This work demonstrates that HA as an efficient polymer resin can be successfully combined with CF fabric to prepare CF composites with integrated performance of flexibility, strength, temperature resistance and flame retardancy, showing the potential for applications in extreme environments.
研究领域:
材料科学
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航空航天工程
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ying Tang,Fan Yang,Danyang Wang,Xin Wang,Yue Li,Bingrong Shen,Hui Peng,Guofu Ma
Ionogels have attracted great attention in flexible wearable devices due to their excellent deformability, high ionic conductivity and sensitive stimulus response. However, most of the reported ionogels still struggle to simultaneously achieve high stretchability, anti-swelling capability, temperature resistance, self-healing ability, and strong adhesion, especially in underwater or extreme environments. Herein, a highly stretchable, anti-swelling, and wide temperature-tolerant fluorinated copolymer ionogel is successfully prepared by photoinitiated copolymerization of fluorinated esters (HFBA) and acrylamide (AAm) monomers in hydrophobic ionic liquid (IL). The dynamic physical interactions of abundant hydrogen bonds and ion-dipole enabled the ionogel with highlighted self-healing and adhesion properties at different temperatures, as well as remarkable anti-swelling in water/organic solvents and wide temperature resistance (-53–230 ℃). In addition, the ionogel-based strain sensor exhibits high sensitivity, high stretchability, fast response, and excellent durability to precisely detect different activities in the human body. More importantly, the ionogel-based sensor can also be used as an underwater communication tool to efficiently transmit information by detecting the regular bending of the finger and relying on the Morse code principle, which provided an easy and effective method for the development of wearable underwater sensors and communication devices in the future.
研究领域:
材料科学
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高分子化学
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柔性电子器件
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传感器
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水下技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
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IF 5.3
Xiaomeng Wang,Fengfan Zhang,Jian Zhang,Guang Wang,Juan Zhang,Meiqin Lin,Zhaoxia Dong,Zihao Yang
Nanomaterials have great potential as novel materials for enhancing oil recovery in low-permeability reservoirs. Spontaneous aggregation hampers their application effectiveness and may lead to irreversible reservoir damage. In this study, monodisperse crumpled SiO2 nanoparticles (C-SiO2) with central radial pore channels were synthesized by using the spherical micelle self-assembly method. After hydrophobic modification, modified C-SiO2 formed a highly stable nanodispersion with the assistance of sodium dodecyl sulfate and octadecanol. Results showed that C-SiO2 exhibited reduced external surface area, increased active sites, and excellent dispersibility. The C-SiO2 dispersion demonstrated excellent temperature tolerance (90 °C) and salt resistance (20000 mg/L, including 4000 mg/L Ca2+), outstanding enhanced oil recovery performance, and negligible reservoir damage. Injecting 0.5 pore volume of the C-SiO2 dispersion at a concentration of 0.025 wt % enhanced oil recovery by 14.25%. The C-SiO2 dispersion effectively mobilized residual oil through the combined action of multiple mechanisms. This study provides an effective approach to enhancing the development of low-permeability reservoirs. It also advances the understanding of C-SiO2 synthesis and stable nanodispersion design, which is crucial for future oil recovery applications.
研究领域:
石油工程
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材料科学
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化学工程
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产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 30
·e02258
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IF 2
Mengxiao Yang,Zheng Cao,Xiaoxue Qiu,Yinpeng Zhou,Lin Liu,Wudi Yang,Juming Yao
Graphical PDES-SS eutectogels were prepared by integrating sericin (SS) with deep eutectic solvent composed of ChCl and AA, and subsequent photopolymerization. SS with numerous functional groups constructed supramolecular network structure with PAA polymers, enabling the eutectogels with attractive mechanical, self-adhesive, and self-healing performances and temperature tolerance for sensor in human motion monitoring. Ionic conductive gels have a promising prospect in flexible sensors due to the stretchability, tunable mechanical properties, and ionic conductivity, but inhibited by the integrations of multifunctionality, environmental stability, and high sensitivity in practical applications. Herein, novel sericin (SS)-derived supramolecular eutectogels were designed and fabricated via simply one-step photopolymerization of deep eutectic solvent (DES). In this strategy, the integration of SS with numerous functional groups (─COOH, ─NH 2 , and ─OH) constructed supramolecular network structure with multiple hydrogen, ionic, and electrostatic interactions. Such supramolecular eutectogels showed superb transparency of 93% transmittance and mechanical properties. When the content of SS was 0.4 wt%, the tensile strength, strain, and toughness of the resultant PDES-SS eutectogels were high to 4.02 MPa, 1703%, and 3.76 MJ/m 3 , increment by 1.9, 0.5, and 2.0 times than those of PDES without SS, respectively. Owing to the constructed reversible supramolecular network, the PDES-SS eutectogels displayed excellent self-healing and self-adhesive ability. Importantly, the remarkable mechanical robustness, transparency, self-adhesion, and conductivity can be maintained in a wide temperature range (−40 °C–60 °C), contributing to the application as high-performance flexible sensors. Obviously, PDES-SS eutectogels could precisely and stably detect strain as well as monitor human movement and physiological signals in real-time.
研究领域:
材料科学
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高分子科学
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柔性机器人
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柔性电子学
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传感器技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Baolu Shi,Jia Liu,Jinzhuo Shi,Donghui Guo,Runze Jin,Zihan Zhou,Yu Chen,Baosheng Xu,Ning Zhou
Effectively insulating against excessive heat generated by sunlight while also avoiding harmful ultraviolet (UV) and maintaining suitable levels of visible light transparency is vital for minimizing energy consumption and optimizing sunlight utilization. To address the challenge of photothermal collaborative management, the PI consisted of high fluorinated dianhydride and aliphatic diamine was used to effectively improve the performance of SiO 2 aerogels. The resulting PI-SiO 2 aerogels retain the characteristics of SiO 2 aerogels, such as low density, high transparency between 82∼89 %, and excellent thermal insulation properties with an ultralow thermal conductivity range from 0.023 W/(m.K) to 0.028 W/(m.K). Meanwhile, the coarsened skeleton of aerogels can withstand the extreme temperature difference between −196 ℃ and 200 ℃ without brittle fracture and yellowing. In addition, PI-SiO 2 aerogels exhibit the capability to absorb a significant proportion of UV light within the 200–400 nm, offering distinct advantages in transparent thermal insulation materials. The multifunctional PI-SiO 2 aerogels can be used as candidate materials in the fields of architecture, automobile, electronics, solar energy and aerospace.
研究领域:
材料科学
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纳米技术
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光学工程
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能源效率
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Juan Zhang,Qiqi Niu,Yuan Gao,Qichao Lv,Zhaoxia Dong,Zihao Yang
Clean fracturing fluids are widely used in reservoir stimulation and increasing production due to their characteristics of simple preparation, no residue, easy flowback, and low damage. At present, clean fracturing fluids are mainly prepared by cationic surfactants as main agent and inorganic or organic salts as additives, which can lead to unavoidable losses of cationic surfactants due to their adsorption in the formation. Anionic-cationic surfactants composite system can not only compensate for the shortcomings of a single surfactant system, but also improve the reservoir adaptability of the surfactant system. In this paper, a clean fracturing fluid was prepared with long-chain anionic surfactant, Sodium erucate (NaOEr), as main agent and a series of cationic surfactants with different as additive. Then, the aggregation behavior of mixed system was determined by visual appearance, rheology experiments, differential scanning calorimetry and cryogenic transmission electron microscopy. The phase transition mechanism induced by temperature was proposed, and the performance of the mixed system as a fracturing fluid was evaluated. The results showed the mixed systems could self-assemble into wormlike micelles when the length of hydrophobic carbon chains of cationic surfactant was 6 and 8. Increasing the length of the hydrophobic carbon chain could enhance the electrostatic effect, leading to precipitation in the mixed system. When the ratio of cationic surfactant was between 0.5 and 0.6 and the concentration was between 68 and 175 mmol∙L -1 , the mixed systems tended to form three-dimensional structures by entangling and stacking wormlike micelles, showing high viscoelasticity and viscosity. The aggregation structure of the mixed system transformed from vesicles to wormlike micelles at 46.8 °C, which is attributed to the transition of carbon chains of NaOEr from non-flexible to flexible. Finally, the mixed system as a fracturing fluid has good shear resistance and temperature resistance. The viscosity of NaOEr/HTAB can reach above 50 mPa⋅s after sheared for 60 min at the conditions of 170 s −1 and 80 °C. This study provides an anionic clean fracturing fluid and broaden the application of viscoelastic surfactants in oilfield development.
研究领域:
石油工程
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材料科学
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化学工程
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胶体与表面化学
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产品关联
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2024
·
IF 1.9
Guopeng Wu,Wei Lang,Xing Li,Zhaowei Hou,Xin Zhao,Zihao Tian,Jinyong Song,Han Jia
Nanomaterials were widely employed to improve the physicochemical properties of various chemicals in enhanced oil recovery (EOR). In the present study, the novel Janus amphiphilic silica nanoparticle (JNS) was successfully prepared, whose structure and property were confirmed via Fourier transform infrared spectroscopy, Zeta potential measurement, transmission electron microscopy, interfacial tension and contact angle measurements. Then the effects of JNS, hydrophilic silica nanoparticles (HLS) and hydrophobic silica nanoparticles (HBS) on the viscosity of the hydrophobic modified HPAM (HOA101) solution were studied. It was found that JNS exhibited a greater ability to enhance the viscosity, temperature resistance and salt resistance of HOA101 solution in comparison to the other two polymer nanofluids. The interaction mechanisms between nanoparticles and HOA101 were proposed, which were verified by the viscoelasticity measurements and control experiments. Core flooding experiments and micromodel flooding tests demonstrated that the JNS/HOA101 dispersion could effectively expand the sweep efficiency to highly increase the oil recovery from 8.4% to 14.3%.
研究领域:
材料科学
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化学工程
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石油工程
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
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2025
·
IF 6
Xinpei Li,Shiquan Qian,Xu Yan,Min Li,Jing Li,Min Yuan,Fei Xu
Background An aptamer-imprinted polymer was synthesized as an As(III) aptasensor for the first time by stabilizing the recognition conformation of the aptamer. Chlorophyll-modified carbon quantum dots were doped into the polymer with fluorescence enhancement to As(III), thereby developing an efficient “turn-on” aptasensor. Results The interactions between the aptamer and functional monomer with As(III) were analyzed using molecular docking and molecular dynamics simulations. The results showed that both were hydrogen bonds, but there was a significant difference in their binding energies. Therefore, this aptasensor exhibited a two-stage linear response to As(III) over a broad range of 0.9 nM–500 nM, with an LOD of 0.89 nM. And the detection time is only 10 min. Compared to the traditional aptamer biosensor without imprinting, the proposed aptasensor's limited spatial domain effectively minimized interference from environmental temperature fluctuations, thereby ensuring the detection stability within the range of 20 °C–60 °C. Furthermore, its specificity for the target detection was significantly improved in comparison to the traditional imprinted polymer without aptamer. Enzymatic hydrolysis was employed as the pretreatment method for the aquatic samples. By integrating with aptasensor, a practical method with an excellent accuracy ranging from 86.34 % to 105.59 % for As(III) detection in aquatic products was also developed. Significance This study contributes to the development of synergistic recognition and detection technologies based on multiple molecular recognition elements.
研究领域:
分析化学
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环境科学
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生物传感器
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纳米技术
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食品安全
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Shoufei Lu,Meilong Fu,Yanmin Mi,Guoyou Cui,Xingcai Wu
To address the issues of limited deep migration capacity, low utilization efficiency, and inadequate environmental sustainability of microspheres, a nano-biomass water dispersant was synthesized using surface-modified nanocellulose (12-25 wt%) as the primary component. The dispersant was systematically evaluated for its temperature and salt tolerance, as well as its pore-throat blocking capabilities, under simulated reservoir conditions. Results indicate exceptional stability and swelling behavior in extreme environments. The particle size increased from <100 nm to 1–10 μm within 7 days at 150 °C in simulated formation water (118,913 mg/L), demonstrating long-term stability under hypersaline conditions. Unlike conventional flooding methods, this nano-biomass system introduces an innovative synchronous displacement mechanism. Rather than adjusting first and then flooding, it combines temporary pore-throat blocking with oil displacement, improving the diversion rate in low-permeability zones by 10%. The dispersant also exhibits superior oil-water interfacial activity, achieving an interfacial tension (IFT) of 10 −2 mN/m at a 0.3 wt% concentration through in situ emulsion formation upon contact with crude oil. Field trials in the Chang Qing Oilfield confirmed its adaptability to high-temperature and high-salinity reservoirs. Owing to its unique thermal stability and salinity resistance, this eco-friendly material represents a promising alternative to synthetic polymers for harsh reservoir conditions.
研究领域:
石油工程
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纳米技术
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环境科学
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高分子科学
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化学工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Zhuyang Jiang,Huan Yang,Zhenning Ji,Qianhong Pan,Zhi Ye,Xiaorong Yu,Gaoshen Su,Yancheng Zheng
Profile control is an effective method for enhancing oil recovery. In-situ crosslinked gels offer advantages such as easy pumping and controllable gel formation time when used as agents for profile control. However, conventional in-situ crosslinked gels suffer from the drawback of shrinkage under high salinity, and the crosslinking agent is typically organometrics, leading to permanent damage to the reservoir. Therefore, it is very important to develop a plugging agent that is resistant to high salinity and causes minimal damage. In this study, sodium lignosulfonate, known for its excellent thermal stability and biocompatibility, was crosslinked with carboxymethyl cellulose and β-cyclodextrin to create a hydrogel gf. The structures of the hydrogel were characterized using FTIR, XRD, viscosimeter and SEM. The temperature resistance, salt resistance, shear resistance, long-term stability and plugging ability of the gel gf-5 were evaluated. The results showed that, compared with the traditional underground crosslinked gel pg-1, gf-5 showed better application performance. Even at a high salinity level of 200,000 mg/L in the aqueous solution, the viscosity of gf-5 was 96830 mPa·s. Additionally, the Ca 2+ present in the mineralized water formed calcium hydroxide particles with hydroxide, acting as rigid support points. This phenomenon enhanced the strength and toughness of the gel. Furthermore, the gel system maintained a stable structure at 60–90 ℃ for 120 days. In sand-packed tubes with varying permeability, the sealing rate exceeded 96 %, and the breakthrough pressure reached 8.593 MPa. SEM images demonstrated that the gel effectively enveloped the sand and adhere to the porous medium.
研究领域:
石油工程
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
DESIGNED MONOMERS AND POLYMERS
·
2022
·
IF 3.718
Xiang Li,Ye Ju,Yongkang Jia,Fenggang Liu,Guangpu Liu,Shuo Wang,Haoyi Wang,Shihua Mao,Jintao Yang,Guangyan Du
Development of polymer-based flooding technology to improve oil recovery efficiency, water dispersion copolymerization of acrylamide, cationic monomer methacryloxyethyltrimethyl ammonium chloride (METAC), and anionic monomer acrylic acid (AA) were carried out in aqueous ammonium sulfate solution with polyvinyl pyrrolidone (PVP) as the stabilizer. The copolymers were characterized by 1H-NMR, FT-IR, TG, and SEM to confirm that they were prepared successfully and exhibited excellent salt-resistant property. Moreover, the effect of the aqueous solution of ammonium sulfate (AS) concentration, stabilizer concentration, and initiator concentration on the viscosity and size were systematically investigated. To further improve the thermal endurance properties of copolymer, hydrophobic monomers with different alkyl chain lengths were added to the above system. The acrylamide-based quadripolymer possessed prominent thermal and salt endurance properties by utilizing the advantages of zwitterionic structure and hydrophobic monomer. With the temperature rising, the viscosity retention could reach 70.2% in the water and 63.8% in the saline. This work had expected to provide a new strategy to design polymers with excellent salinity tolerance and thermal-resistance performances.
研究领域:
高分子科学
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石油工程
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材料科学
✓ 已验证
DOI
高影响因子
Geoenergy Science and Engineering
·
2023
·
IF 0
Binqiang Xie,Jindong Chen,Jun Chen,Chao Ma,Lin Zhao,Alain Pierre Tchameni
Thermo-associating polymers have emerged as the promising agent to regulate the rheological properties of bentonite-free drilling fluids (BFDF). However, the application of thermo-associating polymers in high temperature drilling was still limited due to its unsatisfactory thermal stability. In this study, the method of combine the advantages of thermo-associating polymers and nanoparticles into an organic/inorganic hybrid system has been used to further enhance the thermal stability of thermo-associating polymers. In detail, the novel thermo-associating polymer/silica nanocomposite (AMS-CGBA) was prepared by in situ polymerization under optimal synthesis conditions. Different techniques (FT-IR, 1 H-NMR, Elemental analysis and TGA) were used to characterize the structure and the thermal stability of AMS-CGBA. Rheological performance of the AMS-CGBA in BFDF was comprehensively studied and compared with that of thermo-associating polymer (CGBA). The TGA results showed that AMS-CGBA had excellent thermal stability probably due to incorporation of amino-grafted nano-silica (AMS) into thermo-associating polymer. Results from rheological tests revealed that AMS-CGBA exhibited much better performance than CGBA in improving the thermal stability of BFDF under high temperature and high salt (HTHS). Especially at the concentration of 1.5 wt% AMS-CGBA, the AMS-CGBA based BFDF showed nearly 16 times higher values of rheological parameters (AV, PV and YP) than that of CGBA-containing fluid after aging at 200 °C. And the dynamic light scattering tests revealed that the stability temperature of AMS-CGBA molecular was higher than 160 °C, while that of the CGBA was lower than 150 °C. Moreover, the AMS-CGBA-containing fluids exhibited a weakened thermo-thickening viscosity over a wide temperature range (80–180 °C), which was favorable for the “flat” rheology characteristic of BFDF. And the thermo-associative mechanism of AMS-CGBA was investigated through differential scanning calorimetry experiments to analyze the rheological stability of AMS-CGBA-containing fluids at high temperatures. The nanocomposite with the characteristic of both thermosensitive polymers and nanoparticles showed potential application in rheological regulation of bentonite-free drilling fluids at high temperatures.
研究领域:
材料科学
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化学工程
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石油工程
✓ 已验证
DOI
危险品化学品经营许可证（带存储）