Journal of Coatings Technology and Research
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2025
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IF 2.8
Fang Jingting,Wang Xiuwu,Wang Jing,Han Yingying,Chen Tao
Using petroleum-based plastic materials poses many serious problems, including resource consumption and environmental pollution. Paper-based materials are good substitutes for plastic products because of their biodegradability, resource-richness, and recyclability. Paper’s poor water and oil resistance limits its wide application in food packaging. The use of water and oil repellents is an effective strategy to improve the barrier properties of paper. However, fluorine-containing oil repellents produce perfluorooctanoic acid/perfluorooctanesulfonyl compounds (PFOA/PFOS), which are hazardous to human beings and the environment, during the preparation and use of the repellents. Therefore, developing non-toxic, harmless, and biodegradable bio-based waterproof and oil-resistant coatings is the mainstream trend in the future. In this study, simple and environmentally friendly fluorine-free waterproof and oil-resistant coatings for food wrapping paper were developed by grafting oleyl alcohol onto chitosan using the ring-opening reaction of epichlorohydrin, and the reagents successfully adhered to the surface of the paper. The successful synthesis of waterproof and oil-resistant coatings was confirmed by nuclear magnetic resonance (NMR) and infrared (IR) analyses. The chitosan-based coatings (CHI-g-xOA, x = 1/8, 1/4, 1/2, 1) with different oleyl alcohol contents were prepared by the facile method. The obtained coated paper CHI-g-xOA-p ( x = 1/4) has not only excellent oil resistance (Kit rating value of 11 ± 1.0/12), which meets the food-grade oil-proof requirement, but also has excellent water resistance (Cobb 60 value of 11.86 ± 1.60 g/m 2 ). Compared with the uncoated paper, the tensile strength and water vapor transmission rate of the coated paper were significantly improved.
研究领域:
材料科学
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高分子化学
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食品包装技术
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环境科学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 8
·3534-3550
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IF 4.5
Meng Yuan,Luo Jian,Wu Yu,Hu Jianfei,Huang Wenjie,Hu Chunyan,Jiang Tao,Hao Tonghui,Zhang Qunchao
Fluorine-containing coatings play an essential role in waterproof paint, but the harm of fluoride to the environment does not meet the current environmental protection requirements. The present study reports an eco-friendly and fluoride-free waterproof hybrid coating prepared by a semi-continuous seed emulsion method employing vinyl tributbutoxy silane (VTBS) as the functional monomer and octyl triethoxysilane modified SiO 2 (OTES@ SiO 2 ) as the inorganic filler. In vinyl acetate/butyl acrylate hybrid coatings, the surface covering of OTES@SiO 2 and the cross-linking structure produced by VTBS not only significantly improve the thermal stability, mechanical properties, and strong hydrophobicity but also reduce the water absorption. In addition, the gloss loss of the organic–inorganic hybrid layer is <30% after being exposed to UV-irradiation for 720 h. The obtained coating could be a lovely environmental-friendly protective coating for many functional areas, especially for outdoor applications.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
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2023
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IF 4.3
Shen Zhi-Wei,Hu Shu-Feng,Zeng Chen,Kong Wei-Qing,Zhu Mei-Fang
With the global ban on plastics intensifying, the substitution of plastic with paper has garnered increasing attention. However, the inadequate water and oil repellency of pulp molding hinders its practical applications. Currently, the common method to enhance the oil and water repellency of pulp molding is by adding fluorinated water and oil repellents. Nevertheless, fluorinated compounds are environmentally and physiologically harmful. Therefore, the development of fluorine-free, water and oil repellent alternatives is crucial. In this study, chitosan and stearic acid were utilized as the first and second layers of the oil and water repellent coatings, respectively. The coated samples exhibited favorable water repellency, with a water contact angle of 116.4°, and excellent oil repellency, achieving a 12/12 rating on the kit scale. Importantly, the samples did not exhibit any leakage after being soaked in hot water and hot oil at 95±5 °C for 30 min, demonstrating remarkable performance as a barrier against hot water and oil. Moreover, the coated samples displayed outstanding mechanical properties, thermal stability, biodegradability, and recyclability. The approach presented in this study is simple, cost-effective, environmentally friendly, and represents a promising technique for producing fluoride-free, oil- and water-resistant pulp molding products.
研究领域:
材料科学
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环境科学
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化学工程
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可持续性
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产品关联
DOI
高影响因子
MINERALS ENGINEERING
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2025
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IF 5
Hao Fu,Xuesong Jiang,Xiaotian Chen,Zhenyi Hu,Jifei Sun,Zongrong Zhou,Ling Wang,Boyuan Ban,Jian Chen
Al is one of the most difficult to remove impurities from quartz. Even with HF, only a limited removal efficiency was demonstrated. This study proposes a novel and environmentally friendly strategy centered on a combined process of ball milling, Na 2 CO 3 roasting, fluorine-free acid leaching, and chlorination roasting. The core innovation lies in the strategic induction of a consecutive and reversible phase transformation cycle (α-quartz → cristobalite → α-quartz), which serves as an internal grain refiner to achieve continuous microstructure refinement, thereby constructing abundant fast pathways for impurity migration. A comprehensive XRD analysis was introduced to observe the microstructure evolution. The results indicate that Na 2 CO 3 promotes the phase transformation from α-quartz into cristobalite at a relatively low temperature, while chlorination roasting facilitates the reverse transformation back to α-quartz. It revealed that these two distinct phase transformations not only disrupt the crystal integrity but also lead to significant microstructure refinement accompanied by abundant lattice defects. Through these defects, Al impurities rapidly migrate to the quartz particle surface, where they react with the acid solution and HCl gas, enabling efficient removal. Under the optimal process, the Al removal rate reached 90.5 %, the total impurity removal rate attained 98 %, and the quartz purity increased from 99.683 wt% to 99.994 wt%. This work highlights the crucial role of reversible phase transformation-induced grain refinement as an efficient strategy for lattice impurity removal, offering a green and high-performance alternative to HF-based purification with demonstrated advantages in environmental safety, energy efficiency, and product yield.
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高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2025
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IF 1.9
Youjie Sheng,Tiantian Wang,Yang Li,Li Ma,Qian Zhao,Baohu Li
The development of highly stable and environmentally friendly foams is of utmost urgency. This study systematically investigated the effects of temperature on the viscosity and viscoelasticity of fluorine-free foams stabilized by guar gum (GG), silicon, and hydrocarbon surfactants. The experiment investigated the surface properties and foaming ability of various hydrocarbon surfactants, and selected the excellent BS-12 and the silicone surfactant LS-408L for compound use. The research found that the viscosity of the LS-408L/BS-12 solution increased as the concentration of GG increased. Among them, when the concentration of GG was 0.2wt%, the foam exhibited excellent stability. The rheological tests demonstrated that both the LS-408L/BS-12/GG stabilized foam solution and the foam exhibited the non-Newtonian fluid characteristics of shear thinning. As the temperature rises, the viscosity and viscoelasticity of the solution and the foam continue to decrease. It is notable that when the temperature reaches 67 °C, the loss factor (tan δ) is much greater than 1, indicating that the foam exhibits a significant dominant viscous behavior. Moreover, when the temperature reached 80 °C, the foam drainage accelerated, and the drained liquid exhibited a dynamic elastic response structure under the effect of high temperature. This study provides key data support for the optimized design of fluorine-free foam materials and has guiding significance for their application in different temperature environments.
研究领域:
胶体与界面化学
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高分子材料科学
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环境友好材料
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流变学
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泡沫工程
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产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
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2025
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IF 4.7
Weiwei Zhang,Huaxia Wang,Huicong Liu,Xianwei Zhao,Pei Li,Liqun Zhu,Haining Chen,Weiping Li
Superhydrophobic coatings have garnered significant attention in the aerospace industry due to their unique functionalities. However, most reported coatings are restricted by poor thermal stability (typically below 400 °C), complex fabrication processes, or reliance on fluorinated raw materials, which limit their practical applications. This study employs a fluorine-free water-based acrylic/organosilicon composite resin and dual-scale SiO2/ZrO2 particles to prepare a high-temperature-resistant superhydrophobic coating. The coating exhibits a water contact angle (WCA) of 156.1° and a sliding angle (SA) of 6.9°. Additionally, it maintains good hydrophobicity even after being treated at 500°C for 1 hour. In addition, the coating demonstrates excellent multifunctional durability, including resistance to 200 abrasion cycles, electrolyte corrosion, acid–base solutions, and common organic solvents. Benefiting from its environmentally friendly composition and simple spray-coating process, this work provides a scalable strategy for fabricating robust superhydrophobic coatings tailored for demanding aerospace environments.
研究领域:
材料科学
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表面工程
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航空航天工程
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纳米技术
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2022
·Vol. 139
·期 26
·e52428
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IF 3.057
Zhen Lu,Huarong Liu,Xiaoling Cui,Yue Li,Zhijun Lv,Weijian Chen
In this study, we report a new facile method to prepare fluorine-free superhydrophobic separation films by deposition of micron-sized hydrophobic polyhigh internal phase emulsion (polyHIPE) microspheres on stainless steel meshes. The so-called polyHIPE microspheres are polymer ones with interconnected porous structures, which are prepared by γ-ray radiation polymerization of (W/O HIPE)/W double emulsions stabilized by a single emulsifier 12-acryloyloxy-9-octadecenoic acid using a one-step emulsification in this work. The oil–water separation results show that our self-made hydrophobic meshes have excellent oil–water separation efficiency (about 99.5%), outstanding permeation flux (no less than 187.5 L/[m 2 ·min] and the maximum value of 1850 L/[m 2 ·min]). The oil flux of common organic solvents, water contact angle and water intrusion pressure of these hydrophobic meshes can be readily tuned by changing the size, amount and composition of polyHIPE microspheres. It is worth noting that the superhydrophobic meshes remain excellent separation efficiency and stability after 10 cycles in corrosive environments. More importantly, these superhydrophobic meshes can also efficiently separate surfactant-stabilized water-in-oil emulsions. The polyHIPE microspheres decorated superhydrophobic meshes that can easily realize large-scale production have potentially practical applications in sewage treatment or separation/purification.
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
PROGRESS IN ORGANIC COATINGS
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2023
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IF 6.6
Guang Yang,Zhimin Zhang,Chengqiang Li,Jianqing Hu
The coatings prepared by current water- and oil-repellent strategies are prominently trapped in fluorinated reagents, and most of these coatings performs poor optical transparency and wear resistance. Herein, we report a facile approach of fabrication highly transparent omniphobic coatings only by using PDMS as a low-surface-tension reagent incorporated into the polyurethane matrix. The resultant smooth polymer-based coating not only exhibits significant repellency to various liquids with surface tensions higher than 20mN/m, but also has excellent self-cleaning performance, allowing cooking oil and pump oil to slide cleanly without leaving traces. It can be easily applied onto various substrates without affecting its remarkable ink repellency, especially to impart striking anti-smudge performance to the fabric. Moreover, water-based and oil-based paints as well as artificial fingerprint liquids tend to contract on the coating surface , thus such surfaces exhibit potential application value in anti-graffiti and anti-fingerprint. It can also effectively protect the substrate from the corrosion of chemical reagents, and it is mechanically durable and wear-resistant, which greatly enhances its practicality. Besides, the market is highly desirable for it's cheap and fluorine-free.
研究领域:
材料科学
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表面化学
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涂层技术
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产品关联
DOI
高影响因子
ACS Nano
·
2023
·
IF 17.1
Lin Wang,Chengchun Zhang,Zhenjiang Wei,Zhentao Xin
The accumulation of ice on surfaces will bring safety issues to various human activities. Researchers have been actively developing superhydrophobic surfaces (SHS) as good anti-icing materials. However, some limitations, such as high cost, complexity of preparation, and lack of sufficient durability in extreme environments, restrict their practical applications. Inspired by bronchial mucosa cilia structure and the superhydrophobic lotus leaf structure, we generated ordered magnetic microcilia arrays (MMA) surfaces within 1 min by a fast and controllable microhole assisted magnetic-induced microcilia self-growth method. Fluoride-free superhydrophobic MMA (SMMA) was prepared by impregnating MMA into hexadecyltrimethoxysilane (HDTMS) modified SiO2 solution. SMMA exhibits excellent static anti-icing performance, which can significantly delay the freezing of static droplets in supercooled environments. The SMMA surface still maintains excellent dynamic anti-icing performance at −30 °C after 100 times of supercooled droplet impact. Furthermore, SMMA shows anti-icing performance for up to 2 months at low temperatures (−18 °C). Due to the sensitive magnetic response and excellent bending properties of the cilia, the MMA and SMMA surfaces also demonstrate outstanding multifunctional droplet manipulation under a magnetic field. The MMA surface has the ability to vertically capture and release droplets. The SMMA can achieve horizontal transport of droplets, mixing and microchemical detection, antigravity droplet transport in an 8° inclined array, and even complex objects can be easily transported. More importantly, the SMMA surface exhibits outstanding mechanical durability and chemical stability. It provides insights into the preparation of integrated anti-icing and droplet manipulation surfaces by using a simple green and low-cost method.
研究领域:
材料科学
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表面工程
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仿生学
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防冰技术
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液滴操控
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产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
·
IF 7.3
Shuai Chen,Dennis W. Hess,Lianpeng Zhang,Xijuan Chai,Kaimeng Xu,Yulan Jian,Linkun Xie
Wood, a renewable and sustainable building material, suffers from poor durability in outdoor applications due to its hygroscopic nature. Current protective coatings often rely on energy-intensive processes or hazardous fluorinated chemicals, conflicting with the principles of green chemistry. Herein, we report a green strategy for fabricating self-healing superhydrophobic wood coatings that operate autonomously at room temperature. The coating is formed through a one-step co-condensation of octadecylamine (ODA) with methyltrimethoxysilane (MTMS) in ethanol, avoiding fluorinated compounds and external energy input for healing. The resulting surface exhibits a hierarchical micro/nano-structure, achieving an ultralow surface free energy (~6 mJ/m 2 ) and a water contact angle (WCA) exceeding 155°. After mechanical damage or severe plasma etching, superhydrophobicity is spontaneously restored within 36 h at ambient conditions. Notably, the MTMS/ODA coating demonstrates superior self-healing cyclability (43 cycles), exceptional UV stability (WCA > 140° after 936 h), and resistance to neutral/alkaline media. By significantly reducing water uptake and improving dimensional stability, this coating extends the service life of wood. This work presents a scalable, energy-efficient, and fluorine-free solution for protecting wood, aligning perfectly with the goals of sustainable construction and green materials engineering.
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DOI
高影响因子
Advanced Materials Technologies
·
2025
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IF 6.2
Xudong Liu,Yong Wen,Shenzhen Li,Zhou Lu,Hao Wu,Junhao Xie,Jinqiu Tao,Qianping Ran
Ice accretion induced by extreme weather conditions poses a serious threat to the safe operation of infrastructure. Although superhydrophobic coatings exhibit excellent passive anti-icing performance, they generally lack active deicing capabilities. In this study, a novel photothermal superhydrophobic coating (PM-CPPS) is developed by integrating hydrangea-like hollow carbon nanospheres (CPPS) with a water-soluble fluorine-free polysiloxane (PMATE), enabling a synergistic effect of passive anti-icing and active deicing. The hierarchical micro/nanostructure and low surface energy of the PM-CPPS coating significantly enhanced its hydrophobicity (WCA > 157°), and the photothermal effect enabled complete melting of surface ice within 93 s. Experimental results showed that at −15°C, the coating extended the freezing time of water droplets by approximately 20-fold. Additionally, interfacial adhesion is improved via an epoxy–amine ring-opening reaction between epoxy groups and polydopamine (PDA), allowing the coating to maintain superhydrophobicity after 200 sandpaper abrasion cycles and 160 tape-peeling tests. PM-CPPS exhibited an ultra-low initial ice adhesion strength (5.25 kPa) and a stable photothermal conversion efficiency of 83.24%. This study offers an efficient and durable coating design strategy for long-term anti-icing and deicing applications in infrastructure under extreme environmental conditions.
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DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Mingle Ding,Yuan Wang,Xiaobao Gong,Mukun Luo,Xia Yin,Jianyong Yu,Shichao Zhang,Bin Ding
The excessive use of fluoride in fibrous membranes poses significant bioaccumulative threats to the environment and human health. However, most existing membranes used in protective clothing and desalination systems show high fluorine dependence and inevitable trade-offs between liquid repellency and breathability. Herein, fluorine-free bonded scaffolded nanofiber/network membranes are developed using the electro-coating-netting technique to achieve high-performance liquid-repellency and breathability. By manipulating the stretching of electrospun jets and the polarization of electrets, rough and electrostatic wetting nanofibers are obtained as scaffolds, on which long-chain alkyl precursors are coated to assemble 2D networks consisting of nanowires with diameters of ∼42 nm and bonding points. The resultant fluorine-free membranes exhibit small pore sizes of ∼460 nm, highly interconnected tortuous channels, a water contact angle of ∼138°, and elastic elongation up to 300%, thereby providing both high-performance liquid repellency (125 kPa) and vapor permeability (4206 g m–2 d–1), making them effective for use in protective clothing and desalination. This work could inspire innovative design of ecofriendly nanofibrous materials for high-performance filtration and separation.
研究领域:
材料科学
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环境科学
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纺织工程
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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）