FOOD HYDROCOLLOIDS
·
2022
·
IF 11.504
Yunqing He,Youquan Zhou,Jiabing Cai,Yue Feng,Binghong Luo,Mingxian Liu
Paper is an inherent hydrophilic material due to the hydroxyl groups contained in cellulose , which limits its applications in packaging materials. This study proposed a simple one-step method for preparing hydrophobic paper by introduction of chitin nanocrystals (ChNCs) and hexadecyltrimethoxysilane (HDTMS). The surface chemistry and morphology of coated paper were studied in detail. The 2%ChNCs/HDTMS coated paper was highly hydrophobic with a water contact angle greater than 130°, mainly due to the low surface energy provided by HDTMS. Compared with uncoated paper, the hydrophobic paper's tensile strength and water vapor barrier were significantly improved due to the addition of ChNCs. Meanwhile, the hydrophobic paper showed excellent environmental tolerance and mechanical stability. The survival rate of L929 cells on the modified paper was more than 80% by CCK-8 assay, which proved that the nanocoating was safe. In addition, the obtained hydrophobic coated paper can hold water, cola, green tea, milk, coffee, and orange juice for a long time and can be used as a straw to absorb liquid. This work prepared high-performance and green hydrophobic paper, which exhibits wide applications in food packaging.
研究领域:
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
Cleaner Engineering and Technology
·
2021
·
IF 0
Huijuan Gong,Honglei Pang,Mengfan Du,Zezhi Chen
In order to obtain high performance polyvinylidene fluoride (PVDF) hollow fiber membrane for post combustion carbon dioxide (CO 2 ) capture from flue gas by membrane contact absorption technology, a novel mixed matrix membrane fabrication process was proposed in this study. The mixed matrix PVDF-SiO 2 (silicon dioxide)-HDTMS (hexadecyltrimethoxysilane) hollow fiber membranes fabricated via this process exhibit super-hydrophobicity on the outer surface and high mechanical strength. Among the membranes, the PVDF-SiO 2 (1.5)-HDTMS membrane exhibited the highest CO 2 absorption performance, which was due to its excellent properties. It had water and diethanolamine (DEA, 1 mol/L) contact angles of 159.3° and 157.5°, respectively. Tensile strength, elongation at break, and LEP W (liquid entry pressure of water) of it were 3.2 × 10 6 Pa, 35.0%, and 9.0 × 10 5 Pa, respectively. The CO 2 absorption flux of PVDF-SiO 2 (1.5)-HDTMS membrane attained 2.39 × 10 −3 mol‧m −2 ‧s −1 , which was 7.2% and 141.4% higher than that of the PVDF-HDTMS-1.5 and PVDF membranes, respectively. Moreover, CO 2 absorption flux of the PVDF-SiO 2 (1.5)-HDTMS membrane decreased only 3% after twenty days of continuous operation. Highlighted by the outstanding performance in membrane contact CO 2 absorption, the PVDF-SiO 2 (1.5)-HDTMS membrane shows great potential in the application of membrane contact absorption for post-combustion CO 2 capture.
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
Scientific Reports
·
2023
·Vol. 13
·期 1
·1-10
·
IF 4.6
Pang Honglei,Qiu Yayu,Sheng Weipeng
Hybrid polyvinylidene fluoride-silica-hexadecyltrimethoxysilane (PVDF-SiO 2 -HDTMS) membranes were fabricated via a non-solvent-induced phase-inversion method to create stable hollow-fiber membranes for use in the membrane contact absorption of carbon dioxide (CO 2 ). The surface properties, performance characteristics, and long-term performance stability of the prepared membranes were compared and analyzed. The outer surfaces of the prepared membranes were superhydrophobic because of the formation of rough nanoscale microstructures on the surfaces and their low surface free energy. The addition of inorganic nanoparticles improved the mechanical strength of the PVDF-SiO 2 -HDTMS. Long-term stable operation experiments were carried out with a mixed inlet gas (CO 2 /N 2 = 19/81, v/v) at a flow rate of 20 mL/min. The absorbent liquid in these experiments was 1 mol/L diethanolamine (DEA) at a flow rate of 50 mL/min. The mass transfer flux of CO 2 through the PVDF-SiO 2 -HDTMS membrane decreased from an initial value of 2.39 × 10 –3 mol/m 2 s to 2.31 × 10 –3 mol/m 2 s, a decrease of 3% after 20 days. The addition of highly stable and hydrophobic inorganic nanoparticles prevented pore wetting and structural damage to the membrane. The PVDF-SiO 2 -HDTMS membrane was found to have excellent long-term stable performance in absorbing CO 2 .
研究领域:
材料科学
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环境工程
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 8
·1849
·
IF 3.1
Zhongmin Wang,Xiaoyu Zhou,Yongwei Shang,Bingkui Wang,Kecheng Lu,Weijiang Gan,Huajun Lai,Jiang Wang,Caimin Huang,Zongning Chen,Chenggang Hao,Enlang Feng,Jiacheng Li
The exceptional corrosion resistance and combined physical and chemical self-cleaning capabilities of superhydrophobic photocatalytic coatings have sparked significant interest among researchers. In this paper, we propose an economical and eco-friendly superhydrophobic epoxy resin coating that incorporates SiO2@CuO/HDTMS nanoparticles modified with Hexadecyltrimethoxysilane (HDTMS). The application of superhydrophobic coatings effectively reduces the contact area between the metal surface and corrosive media, leading to a decreased corrosion rate. Additionally, the incorporation of nanomaterials, exemplified by SiO2@CuO core–shell nanoparticles, improves the adhesion and durability of the coatings on aluminum alloy substrates. Experimental data from Tafel curve analysis and electrochemical impedance spectroscopy (EIS) confirm the superior corrosion resistance of the superhydrophobic modified aluminum alloy surface compared to untreated surfaces. Estimations indicate a significant reduction in corrosion rate after superhydrophobic treatment. Furthermore, an optical absorption spectra analysis of the core–shell nanoparticles demonstrates their suitability for photocatalytic applications, showcasing their potential contribution to enhancing the overall performance of the coated surfaces. This research underscores the promising approach of combining superhydrophobic properties with photocatalytic capabilities to develop advanced surface modification techniques for enhanced corrosion resistance and functional properties in diverse industrial settings.
研究领域:
材料科学
·
表面工程
·
腐蚀科学
·
纳米技术
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2024
·
IF 2.6
Wei Kaijun,Zhang Shihong,He Yi,Li Hongjie,Zhou Huilian,Li Zhiyuan,Xu Shijun,Chen Quangang,Cheng Xingtao
Zinc-nickel (ZN) coatings were deposited on N80 steel substrates using pulsed electrodeposition. The current density of the two-step electrodeposition process was adjusted to promote the formation of micro/nanostructures on the coating surface. Superhydrophobic coatings were obtained by using appropriate current parameters and subsequent modification of the coatings with hexadecyltrimethoxysilane. The results showed that the coating achieved a water contact angle of 157 ± 1° and a sliding angle of 6 ± 1°, indicating that the superhydrophobicity was successfully constructed. In addition, electrochemical tests confirmed the coating’s excellent corrosion resistance. Compared with other samples, the corrosion current density of the coating in 3.5 wt% NaCl solution was significantly reduced, the corrosion inhibition rate reached 94.41%, and the impedance modulus in the low-frequency region of the Bode plot was improved by one order of magnitude compared with that of the blank sample. In conclusion, the prepared superhydrophobic coating has good hydrophobicity and corrosion resistance and has a broad industrial application prospect.
研究领域:
材料科学
·
电化学
·
防腐蚀工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Le Zhang,Ying Liu,Xuan Wang,Daimei Chen,Hao Ding
The superhydrophobic surface like lotus leaf had important application prospects in the field of self-cleaning of building exterior walls. However, its single function and poor UV-aging resistance severely limited its practical application. In this study, sericite, an inorganic UV-shielding material with UV absorption properties, was selected as carrier to prepared sericite-TiO 2 composite particles by hydrothermal method. Then, it was modified with hexadecyltrimethoxysilane (HDTMS) and sprayed onto the substrate’s surfaces, forming a superhydrophobic coating with photocatalytic performance and UV-aging resistance. The results showed that the prepared nano-TiO 2 was rutile and uniformly loaded on the sericite surface. The sericite-TiO 2 /HDTMS coating exhibited lotus-like superhydrophobic property with water contact angle (WCA) and water slide angle (WSA) of 154.7° and 2.1°, respectively. The coating also showed photocatalytic performance, and 35.8% of 10 ppm methyl orange solution can be degraded under UV light in 50 min. Due to the fact that sericite was an inorganic UV-shielding agent, the as-prepared coating showed UV-aging property. After UV irradiation for 40 h, WCA of the surface still approach 150°. The sericite-TiO 2 /HDTMS coating not only had self-cleaning performance and UV-aging property, but also the potential for practical applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Xuan Wang,Hao Ding,Chunhong Wang,Run Zhou,Yangzi Li,Wei Li,Weihua Ao
The superhydrophobic self-cleaning coatings with reversible adhesion to water droplets have attracted much attention due to the unique and wonderful self-cleaning performance. In this paper, amorphous SiO 2 microspheres (A-SiO 2 ) and nano-TiO 2 particles (N-TiO 2 ) were used to fabricate A-SiO 2 /N-TiO 2 composites by wet grinding, and then they were modified with Hexadecyltrimethoxysilane (HDTMS) and sprayed onto the surface of substrate to obtain a A-SiO 2 /N-TiO 2 @HDTMS coating. The water contact angle (WCA) and contact angle hysteresis (CAH) of the coating were 157.2° and 2.7°, respectively. After UV irradiation, the WCA decreased to 140.9°, and water droplets stuck onto the coating surface even the coating was turned upside down. Significantly, the coating surface returned to its original superhydrophobic state after dark storage for 8 h, showing a self-healing property. Furthermore, methyl orange solution was degraded by the as-prepared coating under UV irradiation. Moreover, the as-prepared coating maintained its self-cleaning performance after being placed outdoors for 3 months, exhibiting the potential to be used outdoors for a long time. The as-prepared coating not only has excellent properties but also the advantages of environmental protection. Therefore, this research provides an advanced method to prepare self-cleaning coatings environmentally.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Zhou Jie,Siyuan Jin,Ruizhi Wu,Xiaochun Ma,Haoran Wang,Mengyao Pang,Zhe Yu,Wang Guixiang,Jinghuai Zhang,Boris Krit,Sergey Betsofen,Neshchimenko Vitalii,Buzikov Ruslan,Min Qiu,Yurong Yang,Jiaming Chen
Due to the poor corrosion resistance of Mg-Li alloys and the limited effectiveness of single surface treatment methods, developing a composite coating is essential to significantly enhance the corrosion protection. In this study, a stable ceramic coating was fabricated on the surface of a Mg-Li alloy by micro-arc oxidation with regulation of the concentration of ZnO nanoparticles added to the electrolyte. Layered double hydroxides (LDH) was subsequently prepared on the coating surface by modulating the hydrothermal temperature, contributing to blocking the micropores and cracks to enhance the compactness of the coating. Additionally, a low-surface-energy hexadecyltrimethoxysilane (HDTMS) was selected to self-assemble on a rough micro/nano structured MAO/LDH coating to obtain a superhydrophobic surface The composite coating exhibited exceptional corrosion resistance, with the R ct value increasing by four orders of magnitude compared to the substrate and the Y 0 (CPE out ) reduced to the 10 -9 range. Furthermore, the coating keeps almost non-corrosion morphology after 7 days of immersion in 3.5% NaCl solution, which is attributed to the combined effects of the superhydrophobicity of HDTMS, the physical barrier effect and chloride ion trapping ability of LDHs, and the reduction in porosity achieved through the incorporation of nano-ZnO in MAO coating.
研究领域:
材料科学
·
表面工程
·
腐蚀科学
·
纳米技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
OPTICS AND LASER TECHNOLOGY
·
2020
·
IF 3.233
Luxia Zhang,Naiming Lin,Jiaojuan Zou,Xiuzhou Lin,Zhiqi Liu,Shuo Yuan,Yuan Yu,Zhenxia Wang,Qunfeng Zeng,Wengang Chen,Linhai Tian,Lin Qin,Ruizhen Xie,Boqiong Li,Zhihua Wang,Bin Tang,Yucheng Wu
Stainless steel (SS) has long been widely used in the outdoor environment as engineering material due to its excellent corrosion resistance. Recently it is found that super-hydrophobicity on the stainless steel surface also has significant effect on its corrosion resistance. In this work, laser surface texturing (LST) and decoration of hexadecyltrimethoxysilane (HDTMS) duplex treatment were carried out to improve the super-hydrophobicity and corrosion resistance of AISI 304 SS. Comparative appraisals of super-hydrophobicity and corrosion resistance for the related samples were conducted via wetting behavior with distilled water and electrochemical performance with simulated haze solution. The surface morphologies of ground 304 SS (G-304 SS), HDTMS + ground 304 SS (HG-304 SS), surface textured 304 SS (T-304 SS) and HDTMS + surface textured 304 SS (HT-304 SS) before and after electrochemical tests were obtained by scanning electron microscope (SEM). The results showed that micropores with different designed distances have distributed on the surfaces of 304 SS samples after LST treatment. When the micropore distance was 50 μm, this HT-304 SS exhibited a highest contact angle of 158.9°. Electrochemical experiments revealed that the HT-304 SS suggested better corrosion resistance in comparison to the G-304 SS, HG-304, and T-304 SS samples, which was mainly due to its outstanding super-hydrophobicity property.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE REVIEW AND LETTERS
·
2025
·
IF 1.2
LIN LIU,LUXIA ZHANG,NAIMING LIN,SHUO YUAN,YANG YANG,ZHIQI LIU,QUNFENG ZENG,MEISAM NOURI
Super-hydrophobicity inspired by natural water-repellent surfaces has received tremendous attention for surface functionalization of metallic materials in many applications. Problems of corrosion and/or contamination that happens on the surface can be partially solved as the material obtained super-hydrophobicity. Appropriate surface pattern and low surface energy are the two key factors that can realize super-hydrophobicity. In the present paper, laser surface texturing (LST) followed by decoration of Hexadecyltrimethoxysilane (HDTMS) was conducted to manipulate the super-hydrophobicity and corrosion resistance of AISI 316 stainless steel (SS) on the surface. Scanning electron microscopy (SEM) and an ultra-depth field microscope were employed to characterize the surface morphologies of the received samples before and after corrosion tests. Corrosion resistance and super-hydrophobicity for the related samples were investigated using electrochemical tests and water contact angle measurements. It was found that various surface patterns differed with intervals (250, 150, 80, and d = 5 0 μ m,) between two micro-dimples have formed on 316 SS sample surfaces after LST treatment. The surface roughness values gradually increased with the decrease of interval. The 316 SS samples obviously reduced surface energy values after HDTMS decoration. In simulated haze solution, electrochemical tests demonstrated that the 316 SS sample treated with HDTMS + LST (HT-316 SS, d = 5 0 μ m) exhibited lower corrosion and higher corrosion potential current density than the smooth 316 SS (S-316 SS), HDTMS + S -316 SS (HS-316 SS), and LST 316 SS (T-316 SS, d = 5 0 μ m) samples. As expected, the HT-316 SS ( d = 5 0 μ m) exhibited the highest water contact angle of 155.85 ∘ as compared to HS-316 SS and other HT-316 SS samples. Meanwhile, the superhydrophobic surface of HT-316 SS ( d = 5 0 μ m) exhibits super-oleophilic and self-cleaning properties.
研究领域:
材料科学
·
表面工程
·
腐蚀科学
·
纳米技术
·
应用物理
✓ 已验证
产品关联
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2026
·
IF 8.9
Xiong Xie,Tingyu Xiang,Danqian Wang,Jinyang Jiang
Magnesium potassium phosphate cement (MKPC) coatings exhibit excellent bonding properties and environmental friendliness. However, as an inorganic coating, MKPC coatings exhibit poor impermeability. This study utilized hexadecyltrimethoxysilane (HDTMS), CaCl₂ and NaHCO₃ to achieve hydrophobic treatment of the MKPC coating surface. Effects of hydrophobic treatment on the properties of the coating and substrate were characterized by various tests, and mechanisms of corrosion resistance were explored. The results indicate that reducing the surface energy of the coating by HDTMS can improve hydrophobicity of the coating, and increasing the surface roughness by generating CaCO₃ can further enhance the hydrophobicity. Surface treatment enables the coating to maintain prolonged hydrophobicity in a 3.5% NaCl solution. Meanwhile, hydrophobic treatment inhibits the formation of hazenite, enhances the permeability resistance of MKPC, and can provide a long-term improvement in the corrosion resistance for low carbon steel, the best sample exhibited a corrosion current density that was one-third that of the untreated sample after 28 d of immersion.
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Tengle Wang,Qi Guo,Tian C. Zhang,Yu-Xin Zhang,Shaojun Yuan
Superhydrophobic coatings have great potential applications in protecting metallic substrates due to their excellent water-repellency and high corrosion resistance , however, most of their preparation processes are complicated, expensive and difficult to scale up for practical applications. Herein, we reported a facile, low-cost and large-scale-preparation method to fabricate superhydrophobic coatings on the magnesium alloy , of which superhydrophobic hexadecyltrimethoxysilane (HDTMS)-modified diatomite powder was first synthesized by electrochemical deposition method, and subsequent spray coating of the epoxy resin and superhydrophobic diatomite mixture was performed to form superhydrophobic composite coatings on the alloy substrates. The influencing factors of surface wettability of the modified diatomite were comprehensively investigated. Under the optimized synthesis condition of a current density of 0.033 A·cm −2 and electrodeposition time of 2.5 h, the superhydrophobic diatomite powder had an approximately 260 % (in mass fraction) production yield. The spray-coated composite coating delivered superior superhydrophobicity with water contact angle of circa 157° and self-cleaning ability. Such superhydrophobic coating also exhibited a high corrosion protection efficiency of circa 99.8 % and excellent anti-icing performance, and was demonstrated to own ISO grade 1 adhesion and good chemical stability to bear 90 days of immersion in a 3.5 wt% NaCl solution and 20 days of salt spray testing without corrosion. In addition, the superhydrophobic composite coating exhibited great robustness against water impact and sand impact. Therefore, this diatomite/epoxy resin-based superhydrophobic coating can be effectively used for Mg alloy anti-corrosion and has the potential in large-scale production for practical applications.
研究领域:
材料科学
·
腐蚀与防护
✓ 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）