Journal of Composites Science
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2025
·Vol. 9
·期 5
·252
·
IF 3.7
Ting Zhang,Xujiang Chao,Junhao Liang,Bin Wang,Mengmeng Sun
This study investigates the mechanical performance of epoxy resin composites reinforced with silane coupling agent-modified Al2O3nanoparticles (m-Nano-Al2O3/epoxy). Three silane coupling agents (KH550, KH560, and KH570) were employed to functionalize the Al2O3nanoparticles, and their chemical structures were confirmed via Fourier transform infrared spectroscopy (FTIR). The microstructure and elemental distribution of the composites were characterized using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Mechanical properties, including tensile strength and hardness, were evaluated using a universal testing machine and a Rockwell hardness tester, respectively. The incorporation of m-Nano-Al2O3significantly enhances the mechanical properties of the epoxy matrix. Compared to pure epoxy, the KH570-modified composites demonstrate a remarkable 49.1% improvement in tensile strength and an 8.8% increase in hardness. These findings highlight the potential of surface-modified Al2O3nanoparticles as effective reinforcements for high-performance epoxy composites.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Qinghua Zhang,Jingxian Jiang,Fan Gao,Guangfa Zhang,Xiaoli Zhan,Fengqiu Chen
In this work, an original amphiphilic copolymer P(PEG-PDMS-KH570) combined with SiO 2 nanoparticles (SiO 2 NPs) was utilized to prepare polyether sulfone (PES) nanocomposite ultrafiltration (UF) membrane with enhanced antifouling performance. The enrichment of the organic-inorganic modifier P(PEG-PDMS-KH570)@SiO 2 were realized at the same time as the formation of PES UF membrane via sol-gel non-solvent induced phase separation (NIPS) process. The interaction between the copolymer P(PEG-PDMS-KH570) and SiO 2 NPs furnished a stable and effective antifouling PES UF membrane. Surface morphology, chemical composition characterization and wetting property measurements confirmed the segregation and distribution of the nanocomposite modifier. The multi-defense mechanism from fouling resistance to fouling release of the nanocomposite membranes was investigated by setting bovine serum albumin (BSA) aqueous solution as a model foulant. The antifouling properties of the modified membranes, especially for the PES/T@SiO 2 ∼4% membrane, were effectively improved. The flux decline rate of PES/T@SiO 2 ∼4% membrane was as low as 15.6%, and the flux recover ratio was up to 99.0%. Moreover, the modified membranes also possessed remarkable antifouling stability. Results of this work provide a facile method to construct a hierarchical and heterogeneous membrane surface that could achieve the multi-defense mechanism in efficient water treatment.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
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2026
·
IF 4
Yichen Jin,Xiaolei Liu,Yanxia Cao,Yiru Zhang,Di Zhang,Wanjie Wang,Jianmin Zhang
Continuous glass fiber (CGF)-reinforced thermoplastic composites fabricated by vacuum-assisted resin transfer molding (VARTM) often suffer from insufficient fiber–matrix interfacial bonding, which limits effective stress transfer and mechanical performance. In this study, γ-methacryloxypropyltrimethoxysilane (KH570) was employed to tailor the surface chemistry of CGF and enhance its interfacial compatibility with a polymethyl methacrylate (PMMA) matrix. After desizing and oxidative activation, CGFs were modified with varying KH570 concentrations (1–3 wt%) and subsequently incorporated into CGF/PMMA composites using a PMMA/methyl methacrylate binary liquid resin system. Surface morphological and spectroscopic analyses confirmed successful silane grafting, with a uniform and continuous interfacial layer achieved at 2 wt% KH570. The optimized interfacial structure significantly enhanced interfacial adhesion, leading to improved thermomechanical stability and mechanical properties. Compared with the composite reinforced with as-received CGF, the composite containing 2 wt% KH570 exhibited increases of 43.3% in 90° tensile strength, 19.3% in 0° tensile strength, 19.6% in flexural strength, and 28.5% in short-beam shear strength. These enhancements are attributed to improved interfacial stress transfer and restricted polymer chain mobility at the fiber–matrix interface.
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DOI
高影响因子
Science China-Materials
·
2022
·Vol. 66
·期 2
·522-530
·
IF 8.64
Wu Mengjun,Song Jiangping,Zhu Xinxin,Zhan Hui,Tian Tian,Wang Rui,Lei Jiaheng,Tang Haolin
Composite polymer electrolytes (CPEs) are regarded as promising candidates for high-energy-density all-solid-state lithium metal batteries (ASSLMBs) because they combine the merits of solid polymer electrolytes and inorganic solid electrolytes. However, poor electrode/electrolyte interface compatibility and filler agglomeration limit their practical application. In this study, an in-situ polymerization method was used to create a three-dimensional (3D) hierarchical CPE using 3-(trimethoxysilyl)propyl methacrylate (KH570)-modified Li 6.4 La 3 Zr 2 Al 0.2 O 12 (KH@LLZO) particles. The KH@LLZO-rich (up to 80 wt%) region of the electrolyte provides a rigid barrier to prevent lithium dendrite growth, while the other region of the electrolyte with an appropriate KH@LLZO content (8 wt%) achieving optimal ionic conductivity infiltrates into the entire battery system to allow for smooth Li + transport. The symmetric Li|Li cell exhibits steady lithium plating/stripping cycling over 600 h at 0.3 mA h cm −2 and has a decent critical current density of 0.9 mA cm −2 . This is made possible by the elaborate structure of the electrolytes. Full Li|LiFePO 4 cells have preferable cycling stability (capacity retention of 91.6% after 200 cycles at 0.5 C). Moreover, pouch cells that use the in-situ -formed electrolyte exhibit excellent flexibility and safety. This novel design of 3D hierarchical CPEs using surface-modified LLZO particles paves the way for the development of dendrite-free and high-performance ASSLMBs.
研究领域:
材料科学
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能源存储技术
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DOI
高影响因子
FIBERS AND POLYMERS
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2025
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IF 2.3
Chen Kexin,Hu Yinchun,Zhang Yan,Jin Zhibin,Lei Qi,Li Yongcun,Zhou Qiong,Wang Yingying
Aramid fiber/unsaturated polyester resin (AF/UP) composites suffer from weak interfacial adhesion which limits their applications in demanding environment. This study proposes a synergistic modification strategy utilizing polydopamine (PDA) and \(\gamma\) -methacryloxypropyltrimethoxysilane (KH570) which constructs a dual-mechanism interface combining mechanical interlocking and covalent bonding. PDA layer was first formed on AF surface via dopamine (DA) oxidative self-polymerization. KH570 formed covalent bonds with PDA layer to yield KH570–PDA–AF. Multi-scale characterization revealed that PDA and KH570 were successfully grafted on AF surface. KH570–PDA–AF/UP composite achieved an interfacial strength of 35.03 MPa (a 57.4% enhancement) due to copolymerization between KH570 and UP. The tensile strength of KH570–PDA–AF/UP reached 1054.86 MPa (a 47.62% increase) and Young's modulus was 23.64 GPa (a 135.93% enhancement) compared to AF/UP. Dynamic mechanical analysis showed reduced loss modulus above 76 °C which signified optimized interfacial energy dissipation mechanisms. These results manifest that PDA–KH570 synergistic modification strategy effectively optimizes interfacial bonding of AF/UP which offers a novel approach for designing high-performance fiber-reinforced composites with both theoretical innovation and engineering applicability.
研究领域:
材料科学
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聚合物复合材料
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表面改性
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机械工程
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产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Weiyao Wang,Xiaoqin Huang,Mingyuan Wu,Qingyun Wu,Jianjun Yang,Jiuyi Liu,Jianan Zhang
In order to enhance the hydrophilicity of PTFE hollow fiber membrane, high concentration of polymer was needed during the modifying process, but this method resulted in severe pore blockage of hollow fiber membrane with reduced water flux. Herein, we resolve the above contradiction by using cross-linkable poly (vinylpyrrolidone -co- γ-methacryloxypropyltrimethoxysilane) (P (VP- co- KH570)) as hydrophilic polymer and calcium chloride as sacrificial template. The enhanced hydrophilicity and chemical washing resistance of PTFE hollow fiber membrane were achieved by the highly hydrophilic PVP segments and highly crosslinking density contributed by hydrolysis and condensation of the KH570 segments, respectively. The template is embedded in the polymer network formed in the membrane pores, and after template removal the previously occupied pores are released for water transport, thereby minimizing the loss of water flux. The high water flux (1477.14 ± 16.11 L/(m 2 ·h)), superhydrophilicity (the water contact angle = 0°) and hydrophilic stability proved that PTFE hollow fiber membranes are successfully modified by the sacrificial template method. This work provides a facile strategy for designing hydrophilic PTFE hollow fiber membranes for water treatment.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
Polymers
·
2021
·Vol. 13
·期 23
·4101
·
IF 4.329
Zijin Wu,Yonggang Shangguan,Chunhui Zhang,Qiang Zheng
In order to improve the bonding performance, EVA composite hot melt adhesives were prepared by introducing crosslinking agent and silane coupling agent in this paper. A binary EVA resin blend as the base resin with appropriate viscosity and tensile shear strength was selected as hot melt adhesive. The effects of crosslinking agent and silane coupling agent on the properties of ethylene/vinyl acetate (EVA) composite hot melt adhesive were studied. By investigating the preparation and curing conditions of hot melt adhesive and the properties of hot melt adhesive after the introduction of dicumyl peroxide (DCP), the optimum temperature and dosage of DCP and its influence on the properties were determined. It was found that the tensile shear strength of hot melt adhesive increased from 0.247 MPa to 0.726 MPa when 2 phr DCP and 5 phr KH570 were added at the same time. The tensile strength and tensile shear strength of hot melt adhesive are only slightly improved when silicone coupling agents with different functional groups are added to EVA composite hot melt adhesive. However, it was found that excessive silane coupling agent would significantly reduce the tensile strength and shear peel strength of the material.
研究领域:
材料科学
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聚合物化学
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粘合技术
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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
Guangtong Zhang,Ce Liang,Wenxue Li,Baojun Lin,Hongyi Liu,Shuang Gao
To address the issue of superhydrophobic coatings on flexible/stretchable substrates failing under strain and friction conditions, this paper proposes a fluorine-free, stretchable composite method: First, γ-Methacryloxypropyl trimethoxysilane (KH-570) modifies the surface of SiO₂ nanoparticles to enhance interfacial compatibility with the organic phase. This modified surface is then blended with the thermoplastic elastomer SEBS and sprayed onto a chloroprene rubber (CR) substrate. Stretching induces controlled micro/nano-scale roughness evolution. Results indicate that at SiO₂-KH570:SEBS of 1:1, the coating exhibits surface roughness Ra≈5.12 μm, an initial water contact angle (WCA) of 157.5 ± 1.5°, and a rolling angle (SA) of 7.4 ± 1.5°. At 100% tensile strain, the WCA further increased to approximately 161 ± 1.5° while maintaining low adhesion, and superhydrophobicity persisted even at 150% strain. After durability testing (tape stripping, sandpaper abrasion, water jet impact, sand impact), both 1:1 and 1:2 ratio samples retained high hydrophobicity overall. Electrochemical impedance spectroscopy (3.5 wt% NaCl) and 500 h neutral salt spray testing showed: the 1:1 sample exhibited optimal initial shielding performance, while the 1:2 sample demonstrated slightly superior long-term immersion durability. Mechanistically, KH-570 endows the interface with low surface energy, SEBS provides stress buffering and elastic rebound, and stretching creates hierarchical structures in surface wrinkles/pores. This stabilizes the Cassie-Baxter state and reduces the actual solid-liquid contact area. This work provides a concise, scalable route for durable superhydrophobic/anti-fouling self-cleaning surfaces on stretchable substrates.
研究领域:
材料科学
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表面工程
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聚合物纳米复合材料
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疏水材料
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柔性电子
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产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2025
·
IF 3.2
Xiaolin Zhang,Xing Chang,Jingjing Di,Long Xu,Bin Cai,Maocai Huang
To maximize the utilization of waste laser printed paper fiber (WLPF), WLPF was used as the organic reinforcing phase, high-density polyethylene (HDPE) was used as the matrix, vinyltrimethoxysilane (A171) and γ-methacryloxytrimethoxysilane (KH570) were used as coupling agents to modify and prepare WLPF/HDPE composites via a blending-injection molding process. The weather resistance properties and mechanisms of the composites were systematically analyzed using scanning electron microscopy, Fourier-transform infrared spectroscopy (FTIR), mechanical analysis, thermogravimetric analysis, and differential scanning calorimetry. The results showed that the KH570-modified WLPF/HDPE composites retained their excellent tensile and flexural strength after 2000 h of accelerated ultraviolet (UV) aging, and their tensile strength, flexural strength, and flexural modulus were 26.9, 41.0, and 2744.4 MPa, respectively. The thermal property analysis revealed that the thermal stability of the composites decreased after aging. Additionally, the crystallization enthalpy, melting enthalpy, and crystallinity of the composites increased. Highlights Waste laser printed paper fiber/high-density polyethylene (WLPF/HDPE) modified composites were prepared by injection molding process. Ultraviolet (UV) aging properties of WLPF/HDPE composites were investigated for the first time. KH570 modified composites retained excellent tensile and flexural strength after UV aging. The thermal properties of the composites after UV aging were also investigated.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Ousseini Seidina Ousseini,Bo Peng,Zhuang Miao,Kai Cheng,Mandella Ali,Jingwei Li,Jixiang He,Seybou Yacouba Zakariyaou
This study presents the synthesis and evaluation of a novel nanocomposite using dispersion polymerization of Acrylamide (AM), Acrylic Acid (AA), 2-acrylamido-2-methyl propane sulfonic acid (AMPS), and N, N’-methylenebisacrylamide (MBA) grafted onto the surface of modified nano-SiO 2 (M-NS). The modification, achieved using γ-Methacryloyloxypropyltrimethoxysilane (KH570), enhances hydrophobicity and stability. Comprehensive characterization techniques, including ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared (FTIR), laser particle size analysis, and zeta potential measurements were employed to confirm the structural integrity and functionalization of the nanocomposite. Emphasis was placed on examining swelling, viscosity, and dispersion stability under various temperature, salinity, and water conditions to determine its effectiveness under high-temperature and high salinity environments typical of oil reservoirs. The results revealed significant enhancements in swelling behavior and dispersion stability, with high resistance to thermal degradation and salinity-induced aggregation. The nanocomposite demonstrates superior swelling behavior, viscosity retention, and thermal stability under high-temperature (70°C) and high-salinity (up to 20g/L NaCl) conditions, outperforming traditional grafted polymers. Results demonstrated that swelling ratios improve by 45% with 2wt% M-NS, and viscosity degradation is significantly reduced over 20 days of aging. Ionic effects, analyzed show enhanced resistance to divalent ions (Mg 2+ and Ca 2+ ), critical for harsh reservoirs environments. These findings suggest superior conformance control, compliance, and thermal stability, which were further improved with the rise of modified nano-SiO 2 positioning this nanocomposite as a promising option for chemical-enhanced oil recovery applications, addressing in permeability heterogeneity and salinity-induced aggregation.
研究领域:
材料科学
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石油工程
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化学工程
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DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 32
·26266-26275
·
IF 4.6
Yihua Sun,Guoyao Li,Rong Zhong
A UV-curable coating with UV and blue light protection was prepared by incorporating modified rare earth nano cerium dioxide (CeO2) treated with the silane coupling agent KH570. The structures of the modified CeO2 and the resulting UV-curable coating were characterized using Fourier Transform Infrared Spectroscopy, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. UV spectral analysis was conducted to evaluate the UV shielding performance of the coating. The results demonstrated that the nano-CeO2 was uniformly distributed within the polymer matrix of the cured coating. The coating exhibited UV shielding capabilities ranging from 58% to 98% in the UVB region (280–315 nm), as well as effective protection against blue light (400–450 nm), and the visible light transmittance is maintained at about 90%. The UV-cured coating also displayed excellent mechanical properties, indicating its potential application in electronic products.
研究领域:
材料科学
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纳米技术
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高分子科学
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光学涂层
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表面工程
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Xin Sun,Bai Xue,Shengdu Yang,Kangwei Huo,Xingyan Liao,Xujuan Li,Lan Xie,Shuhao Qin,Qiang Zheng
Focus on the potential application in oil-water separation for porous and biodegradable Poly(L-latic acid) (PLLA) amenable to economically viable water treatment, we designate the controllable pores, fibrillary network and protrusion structure by crystallization induced phase separation in poly(L-latic acid)/Zinc oxid (PLLA/ZnO) materials, ready for their potential application in oil-water separation. It’s worth noting that the interface effect between PLLA and ZnO is strengthened by silane coupling agent KH570. The crystallinity of the PLLA/ZnO@KH570 materials are correspondingly increased from 36.9% to 41.1% as the slightly increasing content of ZnO@KH570 from 1% to 7%, indicating that ZnO@KH570 nanoparticles can act as heterogeneous nucleating agent to promote crystallization of PLLA, which facilitate the conversion of PLLA solution from liquid-liquid phase separation mechanism to solid-liquid phase separation mechanism, resulting in the formation of microstructures. Very interestingly, the porosity of PLLA/ZnO@KH570 composite is highest up to 94.1% compared to its value of 87.8% for pure PLLA. Due to the multiple structures, the water contact angle of composite is significantly improved to 146°, allowing the oil/water mixture solution to be effectively separated. In brief, we have successfully manufactured hydrophobic PLLA/ZnO@KH570 composite with the multi-scale microstructure which may be potentially applied in oil-water separation.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）