JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Lu Wang,Hong Li,Yue Dai,Erzhu Sun
Dopamine (DA) can self-polymerize to form polydopamine (PDA) under weak alkaline conditions in the presence of oxygen, creating vibrant structures at the gas–liquid interface. However, the issue of the polydopamine film cracking and easily peeling off from the fabric surface remains unresolved. In this article, we report the rapid polymerization of dopamine in a CuSO 4 /H 2 O 2 system, resulting in the preparation of polydopamine-structured colored cotton fabrics through the stepwise addition of 3-aminopropyltriethoxysilane (KH550) and polyethyleneimine (PEI). Structured color cotton fabrics were hydrophobically treated by a simple impregnation technique using the hydrophobic agent cetyltrimethoxysilane (HDTMS). This improvement suggests that the covalent bonding of PEI with PDA, along with its assembly on the fabric surface, enhanced the homogeneity and continuity of the structural color film, resulting in a brighter and more uniform fabric surface color. After HDTMS treatment, the structural color film on PDA/KH550/PEI-Cotton was converted from a hydrophilic to a hydrophobic state, with a static water contact angle averaging approximately 152.375°. The hydrophobic treatment provided the structural color fabrics with good film stability and resistance to washing, while their surface coloration remained largely unaffected. This method provides a new research idea for eco-dyeing of cotton fabrics.
研究领域:
材料科学
·
纺织功能材料
·
表面化学
·
纳米结构色
·
绿色染整技术
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Aide Lu,Jie Liu,Yongqi Zhang,Yafei Feng,Feifei Zhang,Liqiang Jin,Xiaojun Liu
Cationic waterborne polyurethane (CWPU) adhesives are characterized by their environmental benefits and excellent adhesion, enabled by their inherent positive charges that grant a strong affinity for negatively charged substrates such as glass and metal oxides. However, poor water resistance and emulsification limit their development. Herein, we developed an organosilicon-modified high-adhesion CWPU using polyester polyol polybutylene adipate (PBA, Mn = 2000), isophorone diisocyanate (IPDI), chain extender DMAP (imparting cationic groups for water dispersibility), γ-aminopropyltriethoxy silane (KH550, 0-7 wt% as end-cappers), and neutralizing agents acetic acid and catechol-structured 3,4-dihydroxybenzoic acid (DBA). FT-IR and 1 H NMR confirmed successful synthesis. Organosilicon and alkyl groups improved water resistance and thermal stability, while cationic properties conferred antibacterial efficacy. The results of the research indicated that adding 3 wt% of KH550 yielded the optimal adhesion effect. Specifically, in the T- peel strength on non-polar PVC materials, reached 53.5 N/cm. Meanwhile, the lap shear strengths on rigid materials (steel, aluminum, wood, and copper) were 11.42 MPa, 6.91 MPa, 5.88 MPa, and 6.72 MPa, respectively.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Liang Guo,Yuming Wen,Feng Li,Chuchu Tang,Yang Yang,Shunhui Wang,Zhen Wang,Shun'an He
Graphene oxide-based membranes, known for unique permeability and selectivity in oil/water separation, face limitations due to low flux and weak anti-fouling performance. To overcome these challenges, a series of GO@ZnO membranes were synthesized in a one-pot process, doping different amounts of nano-ZnO into GO with the aid of polydopamine (PDA) and 3-triethoxysilylpropylamine (KH550). This study found that evenly distributed nano-ZnO within the GO layers acted as hydrophilic intercalators, creating continuous rough nanochannels and increased interlayer spacing for effective water transport. The membrane M-5 demonstrated a significant increase in water permeability, reaching 5718 ± 151 L m −2 h −1 bar −1 , nearly 20 times higher than the control group (M-0) without ZnO doping. Anti-fouling tests, using four different oil/water emulsions, showed that M-5 consistently achieved oil rejection rates above 99.7 %. Furthermore, M-5 exhibited a flux recovery rate (FRR) of 95.5 %, surpassing M-0 by 34.6 %. Regeneration experiments confirmed that M-5 maintained an impressive oil rejection rate of 99.2 % after 30 recycling cycles. These results indicate that nano-ZnO enhances surface roughness and hydration layers, significantly improving water permeability without compromising rejection rate and anti-fouling performance. The study presents a straightforward approach to creating continuous nanochannels and hydrophilic layers in two-dimensional laminar GO membranes, highlighting the potential of GO@ZnO membranes in oil-water treatment applications.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2023
·
IF 6
Guochao Zhuang,Jingwen Wang,Jianbao Yang,Yingjie Ma,Yang Zhang,Houqing Wang,Guangbin Ji
In this work, polysulfide polyurethane-urea (PSPU) elastomers with dynamic disulfide bonds introduced into both the soft and hard segments were synthesized. Carboxylated carbon nanotubes (CNT) modified with poly-dopamine and KH550 (KPCNT) were used as fillers, and an approach of solution casting was adopted to fabricate the composite films (named KPCNT/PSPU). In addition, the self-healing efficiency of KPCNT/PSPU composites is improved to 98%. The percolation threshold ( f c ) of KPCNT/PSPU (5.11 vol%) is about twice that of unmodified CNT/PSPU composite film (2.69 vol%). The dielectric constant of 4.74 vol% KPCNT/PSPU at 100 Hz is 141, about 23 times that of PSPU, as well as maintaining a low dielectric loss of 0.17. Furthermore, the CNT/PSPU composite with 2.45 vol% CNT has a dielectric constant of 82 at 100 Hz, while reaching a high dielectric loss of 0.72. It can be concluded that the excellent dielectric properties come from the micro-capacitor effect, interfacial polarization, the exchange of hydrogen-bonding networks as well as disulfide bonds within the PSPU.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Linzhe Xu,Yingbo Chen,Yuanyuan Zhang,Meng Wang,Siyu Wei,Xinyu Zhao
Uranium, as a radioactive element, is the source of utilizable energy for mankind in the future. Large quantities of uranium resources are contained in seawater, so uranium extraction from seawater is undoubtedly the most feasible method. However, the presence of competitive ions such as vanadium hinders the efficient extraction of uranium, which is currently a challenge that needs to be solved. Here, silane coupling agent (KH550) was grafted onto two-dimensional metal carbide (MXene). Subsequently, salicylaldoxime (SA) was deposited onto MXene particles using self-polymerization of dopamine (DA) to prepare PDA/SA deposited MXene composite grafted with KH550 (PDA/SA/MXene-KH550). The adsorbent exhibited excellent selectivity for uranium ions with a uranium/vanadium selectivity ratio of 4.8. In antibacterial experiments, the PDA/SA/MXene-KH550 composite showed excellent antibacterial performance against Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ), demonstrating the ability to adapt to complex marine microbial contamination. In addition, the maximum experimental uranium adsorption capacity of the composite was 332.3 mg/g, following the pseudo-second-order kinetic model and the Langmuir isotherm model. After five adsorption-desorption cycles, the elution efficiency of PDA/SA/MXene-KH550 for uranium can still reach 74.7 %, which demonstrated that the adsorbent had superior stability and regeneration ability, providing the possibility for actual enrichment of uranium.
研究领域:
材料科学
·
环境科学
·
核工程
·
化学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yilong Zhao,Dianbing Zhou,Xiaogang Yao,Minmin Mao,Yingjie Ren,Bing Liu,Hadi Barzegar Bafrooei,Mahdi Feizpour,Peilin Qin,Huixing Lin,Shuqing Song,Kaixin Song
The demand for high-performance dielectric substrates for miniaturized radio-frequency (RF) devices and high-power electronic systems has accelerated the development of polymer–ceramic composites that simultaneously deliver high permittivity, low dielectric loss, and improved thermal conductivity. In this work, γ-aminopropyltriethoxysilane (KH550)-modified Ca 0.60 Sr 0.40 TiO 3 (CST)/polytetrafluoroethylene (PTFE) composite substrates were fabricated through a water-based tape-casting route followed by hot-press lamination, enabling uniform dispersion of CST ceramic fillers within the PTFE matrix. The incorporation of KH550 effectively enhanced interfacial compatibility between the ceramic fillers and the polymer matrix, while systematically increasing CST content improved both dielectric and thermal transport properties. At an optimal CST loading of 60 wt%, the composites exhibited a high relative permittivity ( ε r ) of 11.69 while maintaining a dielectric loss tangent (tan δ ) of 2.16 × 10 −3 at 10 GHz, together with a thermal conductivity ( λ ) of 0.714 W m −1 K −1 , a coefficient of thermal expansion (CTE) of 45.53 ppm K −1 , and an ultimate tensile strength of 15.01 MPa. Finite-element simulations reproduced the experimental trends, indicating that KH550-induced interfacial modification reduces interfacial thermal resistance and facilitates interfacial polarization within the composite system. The resulting CST/PTFE composites therefore exhibit a well-balanced combination of dielectric, thermal, and mechanical properties, highlighting their promising potential as dielectric substrates for high-frequency RF and microwave components in advanced communication technologies such as 5G systems.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Jiong Li,Guoyong Du,Chunping Deng,Huatao Zhang,Lijuan Dai
In recent years, modified membranes for oil–water separation have garnered significant attention. However, the complexity of the process, low efficiency, and serious oil contamination have been the main obstacles to its application. Hence, there is an urgent need to explore simple, environmentally friendly modification methods. Inspired by adhesive bioproteins and diatomaceous silica, this study presents a simple, low-cost, and environmentally friendly biomimetic coating strategy to prepare a highly efficient oil–water separation membrane with convenient separation and excellent resistance to oil fouling. Using pyrogallic acid (PG) and silane coupling agent KH550, a one-step modification of the poly(vinylidene fluoride) (PVDF) microfiltration membrane (MF) was conducted, transitioning the surface wettability of the PVDF membrane from highly hydrophobic to superhydrophilic. This resulted in layered nanoscale papillary structures on the PVDF–MF surface, imparting superhydrophilicity and underwater superoleophobicity, along with excellent oil–water separation capability. Under a transmembrane pressure of 0.85 bar, systematic testing of the modified membrane demonstrated that the stable flux of the emulsion is approximately 950 L m–2 h–1, with an oil rejection rate exceeding 99% and significantly improved fouling resistance, as well as excellent chemical stability and salt resistance. The “green” in situ biomimetic silicification strategy is equally applicable to inert materials such as polytetrafluoroethylene (PTFE) membranes, demonstrating its significant potential for application on other materials.
研究领域:
材料科学
·
环境工程
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2024
·Vol. 45
·期 18
·17205-17221
·
IF 4.8
Shun Yang,Ying Wei,Hongfeng Yin,Dawei Li,Feibiao Xue
Interfacial adhesion properties are a key factor affecting the mechanical properties of composites. It is a very effective way to improve the low-velocity impact resistance of composites by improving the interfacial adhesion properties. To improve the fiber/matrix interfacial adhesion properties of GF/PA6 (glass-fiber/polyamide 6) composites, polyethyleneimine (PEI) and γ-aminopropyltriethoxysilane (KH550) were used to co-modify GF together in this study. The GF/PA6 composites with different modifications of glass-fiber (GF) were also prepared using a hot pressing process, and then their flexural strength, shear strength, pendulum impact strength, and low-speed impact resistance were investigated. Next, the relationship between fiber/matrix interfacial adhesion and mechanical properties of GF/PA6 composites was investigated by combining x-ray photoelectron spectroscopy, scanning electron microscopy, and x-ray computed tomography test results. The results showed that the GF-reinforced PA6 matrix composite with co-modified GF by PEI and KH550 (PEI-KH550-GF/PA6) had the best mechanical properties, with flexural, shear, and pendulum impact strengths of 660.7 MPa, 53.1 MPa, and 261.6 kJ/m 2 , respectively. Furthermore, the low-velocity impact resistance was measured in terms of stress peak, absorbed energy, residual stress, and damage extension, and the results showed that the low-speed impact resistance of PEI-KH550-GF/PA6 composites was also substantially improved that the F max increased from 7402.1 to 10414.0 N. Highlights Due to the poor surface activity of GF, in this experiment, GF was co-modified with PEI and KH550 to achieve better fiber/matrix interfacial adhesion and successfully improve the mechanical properties of the composites; Different modification methods are used to improve the interfacial adhesion of the fiber/matrix interface. The relationship between the interface and impact strength of composites has been studied; The relationship between fiber/matrix interfacial adhesion and internal cracking in composites was investigated using X-CT and SEM and other test results.
研究领域:
材料科学
·
力学
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2026
·Vol. 19
·期 18
·3939
·
IF 3.7
Jun Yin,Ruxiao Jia,Kejun Zhong,Lei Zhang,Jia Liu,Lianzhou Zhang,Hao Sun,Wenyan Zhang,Ying Zhao,Mi Zhang
Highlights A novel synergistic modification strategy using KH550 and sodium palmitate is proposed to address agglomeration and compatibility issues of micronized silver powder in TOPCon cells. What are the main findings? A novel KH550 and sodium palmitate synergistic modification strategy is proposed for micron silver powder in TOPCon cells. Modified silver powder exhibits excellent dispersibility with 6.01 g/cm 3 tapped density and a contact angle of 141.5°. The corresponding silver paste achieves optimized performance with reduced viscosity, low resistivity and a 45.18% aspect ratio. What are the implications of the main findings? This approach enables precise control over the dispersion and printability of silver powder. It provides a strong theoretical foundation for the design of various silver paste carrier systems. Micron-sized silver powder plays a crucial role in Tunnel Oxide Passivated Contact solar cells (TOPCon) within the photovoltaic field due to its high bulk density and excellent rheological properties. Considering that micron-sized silver powder produced by the liquid-phase reduction method exhibits characteristics such as high surface energy and a tendency to agglomerate, along with poor compatibility with organic carriers in the paste, this work employs a strategy of synergistically modifying micron-sized silver powder with KH550 and sodium palmitate to regulate silver powder dispersion and paste adaptability. The composite-modified silver powder exhibits an increase in tapped density from 4.25 g/cm 3 to 6.01 g/cm 3 , a bulk density elevated from 2.98 g/cm 3 to 4.11 g/cm 3 , and a contact angle increased from 46° to 141.5°, demonstrating significantly enhanced dispersion. The TOPCon silver paste prepared from the modified silver powder exhibited excellent comprehensive properties: a viscosity of 6.43 × 10 6 cp, a low resistivity of 2.75 × 10 −6 Ω·cm, and a high aspect ratio of 45.18%. This work elucidates the impact of surface multifunctionalization on silver powder dispersion and paste compatibility, offering a novel approach for designing surface-functionalized micron-sized silver powder and developing high-performance electronic pastes.
✓ 已验证
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Weiwei Dong,Danbo Qian,Ying Xi,Junlong Peng,Wenhao Hong,Yilan Luo,Yunfeng Bai,Shigen Zhu
With increasing demand for deep-sea exploration, high-performance submersible fabric materials are urgently needed. In this study, the surface of hollow glass microspheres (HGMs) was functionalized using silane coupling agent KH550 to prepare amino-modified HGMs. Subsequently, polyurethane-coated HGM (PU-HGMs) were synthesized via in-situ polymerization. Waterproof and thermally insulating composite coatings were prepared on the surface of fabrics by lamination technology, with waterborne polyurethane (WPU) as the matrix material and incorporating HGM and PU-HGM as fillers. The results demonstrated that PU-HGMs fully retained the hollow structure of HGMs, and the surface polyurethane layer (approximately 1.5 μm thick) significantly enhanced the shear resistance of HGMs as well as their interfacial compatibility with the WPU matrix. When the content of PU-HGMs was 20 wt%, the thermal conductivity of the coating decreased to 0.05 W/(m·K), representing a 75.4 % reduction compared to pure WPU. Infrared thermal imaging showed the 20 wt% PU-HGMs coating maintained a temperature of 49.4 °C after 2 min at 100 °C, demonstrating excellent thermal insulation. The 20 wt% PU-HGMs coating had a water contact angle of 121.33° and a water absorption rate of 3.1 %, showing excellent hydrophobicity. When the content of PU-HGMs is 5 wt%, the tensile strength of the composite coating reaches 0.83 MPa and the elongation at break is 1261 %, highlighting the remarkable toughening effect of the polyurethane coating. This study enhances the effective loading of HGM as fillers in waterborne coatings and offers a novel strategy for designing and large-scale manufacturing environmentally friendly diving suit coatings.
研究领域:
材料科学
·
高分子科学
·
表面工程
·
隔热材料
·
海洋工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2016
·
IF 5.557
Heng Shi,Yi He,Yang Pan,Haihui Di,Guangyong Zeng,Lei Zhang,Chunli Zhang
Binding nanoparticles on complex structured materials surface is an important issue for nanotechnology, such as obtain an superwetting surface. To fabricate a highly nanoparticles decorated polymer membrane with superior surface wettability , a facile and environmentally method stills remains challenge. Taken advantage from the mussel-inspired method, we reported here that the TiO 2 nanoparticles were directly anchored on the surface of poly(vinylidene fluoride) (PVDF) membrane, making the intrinsic hydrophobic polymer membrane become hydrophilic, what's more, the mussel inspired method was modified by introducing a silane coupling agent KH550, the ability to bind nanoparticles was retained and the as-prepared membrane turn from a common hydrophilic state to superhydrophilic state. Besides, the as-prepared superhydrophilic PVDF membrane could be applied on the separation of various kinds of surfactant stabilized oil-in-water emulsion with an ultrahigh efficiency nearly 99% and also shows durable oil resistance and antifouling performance, thus make the membrane easily to recycle. In addition, due to the universality of dopamine, this surface modification method should also be applicable on other organic–inorganic hybrid materials.
研究领域:
材料科学
·
纳米技术
·
环境工程
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Dinghao Sun,Rong Du,Jin Zhang,Heng Zhang,Yi Li,Hang Xiao,Haibo Wang,Qingzhu Sun,Zhiyuan Ma
Improving the dispersion and compatibility of fillers in epoxy resin (EP) is crucial for enhancing the thermal stability, mechanical properties, and tribological performance of coatings. This study presents a novel biomimetic modification strategy. MoS2–TiN hybrid fillers are uniformly dispersed in the EP matrix and strongly bonded through comodification with polydopamine (PDA) and γ-aminopropyltriethoxysilane (KH550). The successful synthesis of MoS2–TiN@(PDA+KH550) fillers is confirmed by using Fourier transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Scanning electron microscopy, transmission electron microscopy, and dispersion tests show that the aggregation of MoS2 and TiN is alleviated. Compared to pure EP, the PDA@MoS2–KH550@TiN (2:1)/EP (PMT2@EP) coating shows significant improvements in several aspects. In terms of thermal stability, the residual carbon rate at 800 °C increased from 9.38 to 11.98%. For mechanical properties, the storage modulus increased by 7.2%, the glass transition temperature (Tg) increased by 24.6%, the tensile strength increased by 42.1%, the tensile modulus increased by 60.9%, the hardness increased by 58.3%, and the flexural strength increased by 59.1%. Additionally, the coating exhibits enhanced tribological performance, with a reduction in the friction coefficient of 81.8% (from 0.555 to 0.101) and a decrease in the wear rate of 77.8% (from 11.64 × 10–5 mm3/(N m) to 2.58 × 10–5 mm3/(N m)). This biomimetic interface design provides important experimental and technical support for developing high-performance, wear-resistant, low-friction EP coatings.
研究领域:
材料科学
·
聚合物复合材料
·
摩擦学
·
表面工程
·
纳米材料
✓ 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）