COMPOSITES COMMUNICATIONS
·
2024
·
IF 6.5
Yunyirui Liu,Changhua Li,Rongkai Wu,Jixin Gong,Bihe Yuan
Enhancing flame retardancy and fire-warning capabilities of thermal insulation materials used in building external walls is crucial for ensuring fire safety as well as guarding people's lives and assets. Herein, we have developed an environmentally friendly nano-coating that possesses flame-retardant and early-warning properties by integrating graphene oxide (GO) and attapulgite (ATP) onto melamine foam (MF) through a layer-by-layer self-assembly method (LBL). The GO-ATP-MF composite demonstrates a rapid response to flame (<1 s) due to GO's thermally induced reduction. Additionally, ATP's synergistic flame-retardant effects on both gas and condensed phases contribute to outstanding flame retardancy, enabling an enduring fire alarm duration (>1330 s). The warning duration time of this composite surpasses the majority of GO-based fire-warning nano-coatings reported to date. Moreover, incorporating a Bluetooth wireless transmission system facilitates real-time fire information sharing among smart devices, thereby optimizing fire signal transmission efficiency. Thus, this study advances GO-based flame-retardant nano-coatings and devices with high sensitivity and prolonged fire-warning capabilities, providing an innovative idea to enhance the fire safety of MF as a thermal insulation material.
研究领域:
材料科学
·
消防安全
·
纳米技术
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 139
·期 16
·51992
·
IF 3.125
Chao Yan,Ye-Jun Luo,Wen-Ge Zhang,Zi-Fan Zhu,Pei-Ying Li,Nian Li,Yu-Fang Chen,Tao Jin
Melamine foam is widely used in daily life and building materials due to its superior flame retardancy properties, thermal insulating effects, smoke suppressive ability, low toxicity, and sound absorption properties. To increase the practicality of melamine foam, most research has focused on extending resin storage duration and preparing low-toxic, high-strength foam. In this study, allyl glycidyl ether was used to modify melamine resin, and the modified resin was able to demonstrate a longer storage duration as compared to the conventional resins, and the storage time for the modified resin has exceeded 90 days, and a low free formaldehyde content (0.05 ppm). Furthermore, the as-prepared foam exhibited excellent flame retardancy properties (limiting oxygen index [LOI] = 38.5%, it could easily pass the UL-94-0 grade), low-volume water absorption (0.94%), and lower thermal conductivity (0.0225 W·m −1 ·K −1 ). Concurrently, the foam prepared based on the optimal conditions possessed a high compressive strength of 5.08 MPa, which was ca. 17.5 times higher than that of the conventional melamine foam. Thus, it is expected that this melamine resin modification approach can provide a new approach for the preparation of high-performing foams.
研究领域:
材料科学
·
化学工程
·
高分子科学
✓ 已验证
DOI
高影响因子
TALANTA
·
2018
·
IF 4.244
Qian Li,Xiao Sun,Yangkai Li,Li Xu
In this study, the hydrophobic melamine foam (HMF) was proposed as the solvent holder for liquid-liquid microextraction (LLME) purpose. The HMF contained 3D mesh structure with ultralight, compressible and hydrophobic properties. When it was used as the solvent holder, it had merits of convenient collection of the extractant phase by compressing the foam, enhanced extraction efficiency because of the large contact area between the extractant phase and sample solution, and reusability of the foam. The HMF-LLME combined with gas chromatography-mass spectrometry (GC-MS) was applied for the determination of polycyclic aromatic hydrocarbons (PAHs) in environmental water samples. Under the optimized conditions, the proposed method showed linear ranges of 0.01–50.00 ng mL −1 with good correlation coefficients (r > 0.99), low limits of detection (0.4–3.0 pg mL −1 ), and good precision with intra-day and inter-day relative standard deviations in the range of 6.1–13.7% and 5.3–15.0%, respectively. The HMF retained good performance after 10 cycles’ usages, demonstrating excellent reusability. The proposed HMF-LLME method provided comparable results with the traditional liquid-liquid extraction of PAHs based on United States Environmental Protection Agency Method 3510C on real water samples but with more operational convenience, less consumption of organic solvent and low cost. The HMF was suitable as the solvent holder for LLME purpose with accurate, convenient, rapid, eco-friendly and reusable properties.
研究领域:
分析化学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xiaotong Mu,Lihua Chen,Nannan Qu,Jiale Yu,Xiaoqian Jiang,Chaohu Xiao,Xingping Luo,Qimeige Hasi
The application of photothermal materials in seawater desalination, wastewater treatment have been widely studied, however, there are relatively few studies that combine photothermal effects and solar-driven photocatalysis and exhibit efficient solar-driven water evaporation performance and excellent photocatalytic ability. Form the perspective of practical application, it is of great significance to combine photothermal effect with solar-driven photocatalysis to develop environment-friendly evaporator with low cost, simple preparation process and ability of seawater desalination, wastewater treatment and photodegradation of organic dyes. In this paper, a novel multifunctional MXene/polypyrrole (PPy) coated melamine foam (MF) named as MF-MXene/PPy was successfully prepared by simple impregnation and in-situ polymerization. The MF-MXene/PPy has rich porosity (89.13 %), abundant water molecule transport channels, excellent light absorption capacity (about 94 %), low thermal conductivity (0.1047 W m −1 K −1 ), and exhibits excellent performance in solar desalination, wastewater purification and photodegradation of organic dyes. Under 1 kW m −2 illuminate, the solar energy conversion rate and efficiency of MF-MXene/PPy reaches up to 1.5174 kg m -2 h −1 and 91.24 %. Moreover, due to the regular pore size of MF-MXene/PPy, good salinity tolerance was shown even after continuous evaporation in 20 wt% NaCl for 8 h. After continuous evaporation in 70 mL of 20 wt% NaCl for 8 h, the amount of salt collected could reach 0.2 g. In addition, MF-MXene/PPy also possessed excellent visible light degradation ability for organic dyes, and the degradation rate of methylene blue (MB), rhodamine B (RHB) and methyl orange (MO) were 92.38 %, 88.92 % and 91.75 %, respectively. As a fundamental research, this research will open a novel way to the development of new evaporator.
研究领域:
材料科学
·
环境科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2021
·
IF 7.086
Ting Huang,Sheng Cao,Dan Luo,Nan Zhang,Yan-zhou Lei,Yong Wang
Melamine foam (MF) is a widely used commercial product and exhibits wide applications in many fields ranging from building, transportation to daily chemical product. Recent researches confirm that the special three-dimensional (3D) framework structure of MF can be an ideal substrate to prepare functional materials. In this work, the water-soluble polyethylenimine (PEI) was grafted onto the framework of MF to develop the water purification material toward heavy metal ions removal. The grafting of PEI on MF was achieved with the aids of polydopamine (PDA) coating and epoxy chloropropane (ECH) cross-linking successively. The 3D framework of MF could be well reserved and PEI was homogeneously grafted onto the framework surface. The adsorption capacity of the adsorbent was dependent upon the molecular wight of PEI. Lower PEI molecular weight endowed the adsorbent with better adsorption ability. The maximum adsorption capacity reached 328.95 mg/g, and the adsorbent exhibited extremely high adsorption stability with increasing cycling measurement numbers. Further results showed that the adsorbent also exhibited high reduction ability and induced about 62.5% toxic Cr(VI) to be reduced. This work confirms that the PEI-modified MF sample is a promising adsorbent in the removal of heavy metal ions and it can be used in wastewater treatment .
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 10
·2102092
·
IF 6.389
Junjun Ma,Yangchun Xie,Tao Yang,Xiaohua He
Innovative 3D materials with the switchable wetting surface attract significant attention due to their application in oil/water separation. Herein, a fast pH-responsive and highly effective melamine foam (MF) grafted with poly (2-dimethylaminoethyl methacrylate) is prepared by surface-initiated chain transfer radical polymerization. The as-prepared MF displays superhydrophilic and superoleophobic surface in strong acid solution while it becomes superhydrophobic in neutral or basic solution. Therefore, it can be rapid to selectively absorb different types of oils from the oil–water mixture with a great absorption capacity of 54–117 g g −1 and automatically desorb oil in less than 60 s with a desorption efficiency of 99% (dichloromethane) in acid solution. Moreover, the as-prepared MF possesses excellent recyclability, and the absorption capacity and the desorption efficiency are almost unchanged after 15 cycles. The pH-sensitive MF with switchable wetting surfaces has great potential for the oily water separation.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2023
·
IF 4.7
Tingting Yu,Yebo Tao,Yali Wu,Dongguang Zhang,Jiayi Yang,Xingjun Liu
Three-dimensional graphene foam (GF)-based flexible piezoresistive sensors have the advantages of high conductivity, large deformable range and light weight, which has been utilized in human health measurement, electronic skin, and wearable devices. However, the encapsulation and electrode connections of such sensors reduce breathability, resulting in discomfort and even skin irritation. In this study, a self-encapsulated breathable GF (SEB–rGO–MF) and an SEB–rGO–MF-based piezoresistive sensor (SEB–rGO–MF–PS) are proposed. The SEB–rGO–MF–PS consists of a SEB–rGO–MF and two electrodes, ensuring encapsulation and electrical connection without compromising breathability and stability. We performed material characterization and breathability tests of the SEB–rGO–MF and investigated the sensing mechanism of the SEB–rGO–MF–PS. The SEB–rGO–MF–PS exhibits a sensitivity of 0.108 Pa–1, a measurement range of 0.013–15 kPa, rapid response/recovery times (83 and 166 ms), and excellent stability (2000 cycles at 15 kPa). In addition, this study demonstrates the application of the SEB–rGO–MF–PS for human motion monitoring.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2026
·
IF 5.1
Weizhen Huang,Jieyu Xue,Qiyue Xiao,Ruohan Zhao,Yuanrong Ding,Jianxun Zhang,Zhou Chen,Yong Yang
Noise pollution has long been a critical challenge affecting daily life and industrial activities. Porous materials, such as melamine foam, are widely used for noise reduction due to their excellent sound absorption, low density, and facile processability. However, their sound absorption properties are often limited by the control of thickness or quality in practical applications. This study presents a polydopamine (PDA) mediated surface modification approach, in which zeolitic imidazolate framework 67 (ZIF67) are grew on melamine foam (MF) to enhance its acoustic and mechanical properties. The ZIF67/PDA/MF composite (ZPM) possesses outstanding acoustic performance with a best noise reduction coefficient (NRC) of 0.64, while maintaining sound transmission loss (STL) values exceeding 15 dB above 500 Hz and reaching a maximum of 30.95 dB at 6400 Hz. And it attains a maximum modulus of 35.1 kPa at 60% strain. These improvements stem from the optimized foam skeleton structure, micropores formed via ZIF67 deposition, and increased surface roughness that reinforces the interfacial friction damping effect. This simple yet versatile strategy can be extended to other porous materials, demonstrating significant potential for noise control in industrial, architectural, and transportation applications.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Dongying Deng,Size Zheng,Jinchi Li,Rui Yang,Xinrong Huang,Qian Chen,Jun Xia,Xiaoke Li
Solar-driven interfacial evaporation (SIE) is an innovative and highly effective water treatment method that employs photothermal materials to absorb solar energy and convert it into heat. By concentrating the heat at the water–air interface, SIE avoids the necessity of heating the entire body of water, significantly reducing thermal losses. In this study, we developed a composite material using polyvinyl alcohol (PVA) and sulfobetaine methacrylate (PSBMA) as the framework. And tannic acid (TA), as physical crosslinking, forms more hydrogen bonds with PSBMA and PVA. The coordination interaction between TA and Fe³ ⁺ facilitates the deposition of Fe³ ⁺ on the composite surface, thereby enhancing its light absorption properties. When combined with melamine foam (MF), the composite retains its three-dimensional interconnected structure and exhibits efficient water transport capabilities. When exposed to one-sun irradiation, the composite achieves a light absorption efficiency of 97.6 %, coupled with an evaporation rate of 4.31 kg·m⁻²·h⁻¹ . Additionally, it shows excellent solar desalination capabilities and maintains long-term stability in saline water solutions with concentrations varying from 3.5 to 20 wt%. This study provides an effective solution for addressing freshwater scarcity and wastewater treatment issues.
研究领域:
太阳能脱盐
·
材料科学
·
环境工程
·
光热材料
·
水凝胶复合材料
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 26
·11705-11711
·
IF 3.591
Junyi Guo,Nan Guo,Zhongjie Du,Chen Zhang,Wei Zou
Organic silicone materials offer numerous benefits and hence hold significant potential in daily applications. However, poor flame-retardant properties may limit their use in the field of fire prevention. In this study, this problem was solved by designing a stable, facile, and effective fabrication method. A silane vinyl melamine/silicone foam (VTMO–APTES–PAA–MF/SI) with excellent flame-retardant properties was obtained through a step-by-step chemical surface modification method. Aminopropyl ethoxy silane (APTES) and vinyl methoxy silane (VTMO) provided cross-linking sites and formed a macromolecular network structure, thus improving the compatibility between the melamine foam (MF) and silicone material. As a result, VTMO–APTES—PAA–MF/SI exhibited a high limiting oxygen index and UL94 flame-retardant rating (31.1 vol%, V-0). Besides, compared with melamine/silicone foam (MF/SI), VTMO–APTES–PAA–MF/SI demonstrated better tensile strength and elongation at break.
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
Frontiers of Chemical Science and Engineering
·
2022
·Vol. 16
·期 8
·1247-1258
·
IF 4.803
Li Meng,Fang Yuanfeng,Liu Chun,Zhou Mengmeng,Miao Xiaomei,Pei Yongbing,Yan Yue,Xiao Wenjun,Qiu Huayu,Wu Lianbin
In this study, a durable superhydrophobic/superoleophilic melamine foam was fabricated by a facile and rapid one-step thiol-ene click chemistry and Michael addition reaction, which demonstrated excellent robustness in oil/water separation. First, 1H, 1H, 2H-perfluoro-1-hexene reacted with thiol-functionalized polyhedral oligomeric silsesquioxane via the thiol-ene click chemistry to obtain a fluorinated thiol-functionalized polyhedral oligomeric silsesquioxane solution. Subsequently, the melamine foam was immersed to the solution system to form nanoaggregates on the melamine foam surface by the Michael addition reaction in the presence of ultraviolet light. The micro/nano rough structure and low surface energy of the nanoaggregates layer endowed the pristine melamine foam with superhydrophobicity; the water contact angle was greater than 150°. More importantly, the as-prepared melamine foam could withstand harsh conditions, such as a corrosive solution environment, strong ultraviolet light, mechanical compression, high and low temperature exposure, and ultrasonic washing. Driven by gravity, the as-prepared melamine foam could efficiently separate the oil/water mixtures and maintain 98% separation efficiency at high and low temperatures. In addition, it maintained the desirable absorption capability in different oil/organic solvents even after 15 absorption cycles. Accordingly, this facile, low-cost, and robust one-step method provides important support for the superhydrophobic oil/water separation field.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Huijuan Zou,Weibing Zhang,Qihuang Wu,Taici Huang,Wei Xu,Xinxin Xi,Yanling Cheng,Huatay Lin
In this study, a series of hierarchical porous Al 2 O 3 with controlled morphology were synthesized using melamine foam (MF) as a sacrificial template. Comprehensive characterization through XRD, FTIR, Raman spectra, SEM, TEM, and N 2 adsorption-desorption confirmed the successful fabrication of graphite skeleton-guided hierarchical porousAl 2 O 3 by precise control of calcination temperature. The hierarchical porous Al 2 O 3 materials calcined at 1000 ℃,1400 ℃, and 1500 ℃ demonstrated unique structural features and higher positive Zeta potential, exhibiting remarkably fast adsorption kinetics and exceptional Congo red (CR) adsorption capacities that significantly surpassed previously reported values in literature. The adsorption process followed pseudo-second-order kinetics, indicating chemisorption as the dominant mechanism. Furthermore, the adsorption isotherm was best described by the Langmuir model, suggesting monolayer adsorption behavior. These findings demonstrate that our cost-effectively fabricated hierarchical porous Al 2 O 3 represents a highly promising adsorbent for efficient removal of organic dyes from wastewater.
研究领域:
材料科学
·
环境工程
·
化学工程
·
纳米技术
✓ 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）