Surfaces and Interfaces
·
2024
·
IF 5.7
Jian Gao,Hao Li,Weixiang Sun,Xiaowen Huang,Kai Zhang
Despite significant advancements in the development of superhydrophobic coatings on metal substrates, producing durable superhydrophobic coatings on a large scale remains a formidable challenge through a simple and low-cost method. In this study, a robust and environmentally friendly superhydrophobic coating (DTSC) was developed and prepared on the surface of X80 Pipeline Steel through a spray method using a multiple bonding between phytic acid and silane coupling agent and the van der Waals force of PDMS. The morphology, structure and composition of the DTSC were analyzed by field emission scanning electron microscope, three-dimensional profilometer, and Fourier transform infrared spectroscopy. The water contact angle of the DTSC is 158°, and the roll-off angle is 2° Regardless of whether the coating is subjected to 50 cycles of abrasive paper or 14 h of water drops, it still retains excellent superhydrophobicity. It is worth mentioning that the oil-water separation capacity of the superhydrophobic steel mesh is as high as 97 %. In a range of polluted environments, superhydrophobic coatings still exhibit exceptional static and dynamic antifouling performance, as well as excellent self-cleaning performance. Furthermore, the coating has a high level of acid and alkali resistance and effectively resists ultraviolet radiation and high temperatures. This work provides an environmentally and economically viable method for the industrial application of superhydrophobic coatings.
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
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Yuanchen Zhu,Gang Liu,Zhenying Cui,Hongwei Yang,Fang Liu,Baolei Jiang,Lei Chen
Blending hydrogen into existing natural gas pipelines is a cost-effective method for large-scale hydrogen transportation. However, high hydrogen ratios cause hydrogen embrittlement in pipeline steel, limiting transportation efficiency. Due to complex structures and harsh application conditions, existing coatings are difficult to apply on pipelines. To tackle such issues, we propose an ionic liquid-polymer composite coating using epoxy resin as coating substrate, based on the competitive adsorption of methane and hydrogen on pipeline steel. Ionic liquids with high methane selectivity were selected via quantum chemical calculation. The protective effect of coatings was characterized using hydrogen pre-charging constant strain tensile tests. Simulation and experimental results demonstrate that epoxy resin coatings reduce hydrogen embrittlement in X80 steel. Modified with selective CH 4 /H 2 permeability ionic liquids, the epoxy resin coating enhances methane and hydrogen competitive adsorption on the steel surface, improving hydrogen embrittlement resistance. This novel coating offers a viable solution for achieving safe and high ratio hydrogen blended transportation in natural gas pipeline.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Wenjuan Zhang,Shuanshi Fan,Yanhong Wang,Xuemei Lang,Gang Li
The formation and accumulation of clathrate hydrates in oil/gas pipelines are responsible for flow blockages. How to effectively prevent the blockage of hydrate in the pipeline? Pipeline coating, as a potential new technology, is expected to solve this problem. In the present work, a biomimetic flower like CeO 2 /pDA@X80 coating was first fabricated using static self-assembly method. The coating exhibited excellent super-hydrophobicity both in air and oil conditions with contact angles of 154.7°, 155.5° and sliding angles of 3°, 2°, respectively. The coating possesses good mechanical stability, which was able to maintain its super-hydrophobicity during 2 h sand abrasion test. The adhesive ability of the CeO 2 /pDA@X80 coating was satisfied with the requirements of Grade 2, that standing for good adhesion between the coating and substrate. In addition, the hydrate adhesive forces were measured between CeO 2 /pDA@X80 coating and cyclopentane hydrate by a micromechanical force method. The results suggested that the hydrate adhesion force of CeO 2 /pDA@X80 coating was about 98.9% below compared with X80. More importantly, the coating can still achieve ultralow hydrate adhesion after 2 h sand abrasion tests. When a liquid water droplet was hanged on the X80 surfaces, the hydrate can be firmly connected with the substrate and failed to be separated, however, the coating can effectively avoid this condition, because the water droplet can easily detach from the superhydrophobic surface. The coating method can provide an alternative choice for preventing hydrate blockages and play a supplementary role in preventing hydrate plugging.
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
RSC Advances
·
2016
·Vol. 6
·期 94
·91669-91678
·
IF 3.289
Yong Liu,Tian Ding,Qian Meng,Bohua Dong,Lixin Cao,Rongjie Gao
This paper provides a simple, high efficiency and low-cost approach for the preparation of superamphiphobic surfacea on X80 pipeline steel substrates. The whole process included three simple steps: first, the metallic copper was electrochemically deposited onto the surface of X80 pipeline steel substrates under hot alkaline conditions to obtain a layer of the bi-material interface structure. Second, the treated surface was further immersed in ammonia solution at a particular temperature in order to fabricate hierarchical structure to increase the surface roughness. Finally, to reduce the surface energy of the fabricated structures, the surfaces were subsequently chemically modified with 1H,1H,2H,2H-perfluoro-decyl-triethoxysilane. After treatment using the optimum parameters, the as-prepared surfaces exhibited repellency toward distilled water, glycerol, ethylene glycol, and olive oil with contact angles at 163°, 157°, 155° and 152°, respectively, the corresponding sliding angles are all within 10°, which can be attributed to the combination of micro/nano rough reentrant and hierarchical laminated structures with low surface energy modification. Furthermore, in an attempt to improve the superamphiphobic properties of the surface, the thermal stability, long-term stability and mechanical stability of the fabricated nanostructure film surface were examined using a UV light test, immersion test, temperature test and abrasion test, which show that the created superamphiphobic surfaces possess excellent stability under harsh conditions. The developed approach presented might provide a facile, low-cost and scalable route toward the preparation of novel films on metal substrates for various industrial applications, and a high potential for large-scale applications of pipeline steel.
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
危险品化学品经营许可证（带存储）