Surfaces and Interfaces
·
2025
·
IF 6.3
Yinchuan Pu,Duoduo Huang,Su Wang,Wei Xu
Developing robust and durable superhydrophilic surfaces on polyethylene terephthalate (PET) films is critical for advancing their applications in self-cleaning and biomedical technologies. In this study, a coating solution containing polyethyleneimine and HDI polyisocyanate was bar-coated onto PET film surfaces and subsequently cross-linked to form a dense R-NH-CO-NH-R' covalent network. After modification, the PET film surfaces demonstrated superhydrophilicity (WCA=0°) accompanied by a significant increase in surface energy to 79.4 mN/m, while achieving excellent 5B-grade adhesion. Furthermore, when exposed to 40-hour immersion in aqueous solutions, the modified surfaces maintained their superhydrophilicity (0° WCA) with essentially unchanged surface energies. The coatings showed near-complete surface coverage along with substantial covalent bonds retention. Such crosslinking construction approach via bar-coating exhibits promising potential for PET films in superhydrophilic applications.
研究领域:
生物医学工程
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材料科学
·
表面工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 25
·1-13
·
IF 2.8
Xue Longlong,Xiong Shisheng
In the anti-wind–sand environment, it is challenging to find a single material that fulfills all the required functional application requirements, such as shielding performance, mechanical performance, chemical performance, reliability, and economic efficiency. Herein, a multi-layer electromagnetic shielding composite sheet specifically was designed for large military bases in anti-wind–sand environments. The composite material structure comprises laminated aluminum foil, PET film, and Oxford fabric, utilizing an acrylic emulsion pressure-sensitive adhesive that was modified with superior nano-SiO 2 . The results showed that the electromagnetic interference shielding of Al Mylar foil (0.03 mm) measured 88 dB, whereas the medium gauge foil recorded 84.7 dB after salt spray test for 288 h. The samples of Oxford fabric showed an increase in tensile and tearing strength as the fabric density increases, but the rate of increase decreases gradually. The shear and peel strengths of acrylic emulsion modified by hydrophobic nano-SiO 2 were 67.1 MPa and 24.3 N/m, respectively, with a blending ratio of 7 wt%. Finally, we handpicked 140 g/m 2 of Oxford cloth, 0.03 mm of aluminum foil with PET films, and acrylic emulsion pressure-sensitive adhesive containing 7 wt% hydrophobic nano-SiO 2 for the lamination. The samples have good aging performance, with electromagnetic shielding performance, shear strength, peel strength, and weight loss declining less than 10% at 85 °C and 85% RH for 1000 h.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Chaohua Peng,An Huang,Xinjie Ma,Jiahui Zhong,Guorong Chen,Weiang Luo,Birong Zeng,Conghui Yuan,Yiting Xu,Lizong Dai
With the rapid development of flexible OLED display technology, Poly(ethylene terephthalate) (PET) has also received extensive attention as a protective film. However, it is still a challenge to endow PET with abrasion resistance and flame retardancy while maintaining transparency and flexibility. Here, we developed an epoxy-amine curing hybrid coating based on phosphorus-containing organic amine (DPNP) and ladderlike epoxy-oligosiloxane (AEOS). The ratio of DPNP and AEOS was changed to study the effect of phosphorus and silicon content on the performance of hybrid coatings. All the coatings were transparent. The PET/AE-DP3 sample achieved the limiting oxygen index of 28 % and exhibited self-extinguishing in vertical burning test. In microscale combustion calorimeter (MCC) test, the minimum peak heat release rate was 236.4 W/g with a reduction of 29.5 %, compared with pure PET. In addition, the AE-DP3 coating could withstand the abrasion of copper mesh and cheese cotton with a pencil hardness of 8H, and showed good foldability with a bending diameter of 5 mm. At the same time, the coating exhibited satisfactory adhesion without plasma treatment and good UV resistance. These results indicated the hybrid coating overcome the inherited weakness of PET film such as poor scratch-resistance and flammability , promoting the wider application of PET.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2025
·
IF 6.6
Jingwen Li,Hui Yu,Lijuan Wang,Qing Ma,Dongkun Zhao,Baocheng Xu,Xinjing Dou,Lili Liu
This study investigated the protective effects of five colored PET films against phytosterol (PS) oxidation in vegetable oil. The transparent film demonstrated the lowest inhibition rates for the formation of phytosterol oxidation products (POPs) among the five coloured films, which inhibited PS oxidation solely by reducing light intensity. In contrast, the blue film exhibited superior light barrier characteristics, effectively blocking wavelengths corresponding to ultraviolet light and chlorophyll excitation bands. This dual mechanism significantly reduced both auto-oxidation and type II photooxidation pathways of PS. Consequently, the blue film increased inhibition rates for POPs (7α-OH-PS, 7β-OH-PS, 5α,6α-epoxy-PS, 7-keto-PS, 6β-OH-PS, and 5β,6β-epoxy-PS) from 22.12 %, 13.66 %, 15.08 %, 12.16 %, 12.93 %, and 10.70 % to 76.60 %, 75.29 %, 79.40 %, 75.41 %, 77.56 %, and 75.33 %, respectively. Mechanistic analysis revealed that the blue film's enhanced protection for PS oxidation originated from its inhibition of C7 pathway-mediated POP generation. While red, yellow, and green films operated through similar protective mechanisms, their efficacy varied significantly. The overall protective performance was ranked as follows: red ≈ blue > yellow > green > transparent. These findings provide critical insights for developing optimized packaging solutions to inhibit PS oxidation in lipid-containing food products.
研究领域:
食品科学
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植物化学
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DOI
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Ze-Long Bao,Wen-Hao Geng,Song-Yi Zhang,Peng-Fei Qian,Li-Chao Jing,Xuan-Chen Liu,Tong-Yu Li,Yu-Long Guo,Ru-Yu Chang,Hong-Zhang Geng
Ubiquitous electromagnetic waves have a negative effect on precision instruments and damage human health. Therefore, multifunctional and versatile flexible transparent conductive films, which can solve the challenge of microelectronic device encapsulated and protected in harsh conditions (e.g., extreme temperature) in specific scenarios, are demanded to process electromagnetic shielding and electric heating properties. Herein, AgNWs/MXene@Ni/PET films were fabricated by MXene template-guided electrochemical deposition of nickel nanosphere as flexible transparent conductive films. The films exhibit excellent optoelectrical properties (9.8 Ω/sq @ transparency 80.3%), splendid EMI shielding performances (35.1 dB), outstanding electric heating performance (85°C at 4 V), and rapid heating capability (reaching the saturation temperature with 40 s), which are potential to be widely applied under the complex surrounding as electromagnetic shielding and electric heating. Noticeably, nickel nanosphere are regarded as resistor-capacitor circuit model on the surface of MXene, forming the structure of the capacitor. Furthermore, magnetic nickel nanospheres have synergistic effect with dielectric MXene and AgNWs, defined Dielectric-Magnetic-Dielectric synergistic absorption. In addition, Ni nanosphere generate dielectric dipole interactions with MXene, to enhance the capability of absorbing EMW. Finally, this work has the potential to be conducive to practical and commercial applications as flexible transparent electromagnetic interference and electric heating devices.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
NANOTECHNOLOGY
·
2020
·Vol. 32
·期 10
·105710
·
IF 3.551
Lu Zhang,Fuliang Jiang,Bisheng Wu,Chencheng Lv,Minghua Wu
Silver nanowires (AgNWs), appear as an extremely promising candidate for the next generation of flexible transparent conductive electrodes (FTCEs). However, the performance of AgNWs-FTCEs was severely limited by the aspect ratio of AgNWs, while it was still a big challenge to fabricate AgNWs with high aspect ratio nowadays. To improve the aspect ratio of AgNWs, bromide ion (Br−), cupric ion (Cu2+) and polyvinylpyrrolidone (PVP, Mw ≈ 1300 000) which are beneficial for the synthesis of high aspect ratio AgNWs, were introduced in this article. The high quality and uniform AgNWs with the average diameter of 77.6 nm and the aspect ratio above 2000 were fabricated via a one-step solvothermal method. The effects of reaction time, molar ratio of AgNO3 to PVP and the concentration of CuBr2 on the aspect ratio of AgNWs were discussed. The mechanism of the synthesis of high aspect ratio AgNWs was explored. After that, the prepared AgNWs were spin-coated on the surface of PET film, the FTCEs based on the ultra-high aspect ratio AgNWs without any post-treatments exhibits relatively high transmittance, low haze and low sheet resistance, and the AgNWs have little effect on the optical performance of pristine PET film. The outstanding performance of the prepared FTCEs indicated that the ultra-high aspect ratio AgNWs are ideal materials in the application of FTCEs, and the method of fabricating AgNWs could provide a direction to the high aspect ratio AgNWs.
研究领域:
材料科学
·
纳米技术
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DOI
PubMed
高影响因子
POLYMER BULLETIN
·
2022
·Vol. 79
·期 12
·10573-10593
·
IF 2.843
Zhong Wen,Wei Binxiao,Wang Yu,Bai Yongping
Polyacrylate coating has been used for modifying Polyethylene terephthalate (PET) film to improve its oxygen barrier performance. However, comprehensive study on the oxygen barrier of polyacrylate coating is still underway. In this work, a series of polyacrylate coatings with different functional monomers such as maleic acid (MA), acrylic acid (AA), 2-hydroxyethyl acrylate (2-HEA), and 2-butene-1, 4-diol (1, 4-BED) were prepared by using Desmodur L75 (L75) and Erisys Ga240 (Ga240) as a curing agent. The polyacrylate coatings were characterized by Fourier Transform Infrared (FT-IR) spectrometer. The oxygen permeability (Po 2 ) of the coatings was measured by Gas Permeability Tester. The results reveal that anhydride moiety produced by dehydration of carboxylic acid is the key structure for enhancing the oxygen barrier property of the polyacrylate coating. Moreover, when the anhydride coexists with other cross-linking structures, the oxygen barrier performance of the resulting coatings was not further enhanced. Compared with the pristine PET substrate, the anhydride-containing polyacrylate-coated PET film has reduced Po 2 by 68%. This work provides a facile strategy for improving the oxygen barrier performance of PET film by coating amorphous polyacrylate.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 33
·50836
·
IF 3.125
Wen Zhong,Xiaobin Yang,Hongwei Gao,Yongping Bai
A series of coatings which applied for improving the oxygen barrier property of polyethylene terephthalate (PET) film were prepared based on the copolymerization of methyl methacrylate, methyl acrylate, diallyl maleate, and maleic acid (MA). The chemical structures of the coatings were characterized by Fourier Transform Infrared spectrometer. The curing behavior was analyzed by differential scanning calorimetry. The oxygen permeability (Po 2 ) was measured by gas permeability tester . The molecular weight was investigated by gel permeation chromatography (GPC). Po 2 is inversely proportional to the oxygen barrier property that the decrease of Po 2 indicates the improvement of oxygen barrier property. The coating containing inter-chain cross-linking structure formed by the dehydration of carboxylic acid improves the oxygen barrier property of PET film greatly. With the increasing content of MA, the oxygen barrier capability of coated PET film is enhanced according to the Po 2 decreasing from 1.450 to 0.8956. The Po 2 of coated PET film is minimized by selecting N -methyl pyrrolidone as solvent for polymerization. The GPC results indicate that the oxygen barrier of novel coated PET film can be obtained when the weight average molecular weight ( Mw ) is up to the stipulated value.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yinchuan Pu,Duoduo Huang,Wei Xu
Recently, it is urgent for PET films to demonstrate both superhydrophilicity and superoleophilicity to meet evolving industrial demands in applications such as precision printing and biomedical interfaces. This work developed a superamphiphilic PET surface through synergistic integration of oleophilic/hydrophilic units and micro/nano-structures, utilizing a highly efficient UV-curable technology. Epoxy resin (EP) and hydroxyethyl acrylate (HEA) were utilised as the crosslinking matrix, with carboxylated carbon nanotubes (CNTs) as functional fillers for micro/nano-structures formation. The modified PET films exhibited complete wetting behavior, showing 0° contact angles for both water and diiodomethane, along with a 66.8 % increase in surface energy (81.4 mN/m) compared to unmodified films. The E1H2C3 coating maintained 3B-grade adhesion without compromising tensile strength. Futhermore, the highly conductive CNTs significantly enhanced the film's antistatic properties, ultimately reducing resistivity by 11 orders of magnitude versus pristine samples.
研究领域:
材料科学
·
表面工程
·
纳米技术
·
高分子化学
·
生物医学工程
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 5
·2122-2128
·
IF 3.288
Lei Ding,YiFan Chen,Zibo Hua,Li Liu,Haixu Chen,Zhengxiang Zhong,Yunzhe Du,Yudong Huang
ZnO quantum dots@SiO2 (ZnO QDs@SiO2) was synthesized by a modified sol–gel method, and then added to polyvinyl alcohol (PVA) to form an ink-absorbing coating with ultraviolet shielding performance on poly(ethylene terephthalate) (PET) films. A layer of silica encapsulated on the surface of ZnO QDs not only reduces the photocatalytic activity significantly, but also prevents the agglomeration of ZnO QDs in aqueous solution. The UV-vis transmittance spectrum of the as-prepared ink-absorbing coating displayed excellent shielding performance in the ultraviolet region (<355 nm) and high transmittance in the visible region. Even when exposed to 30 W ultraviolet for 100 h, no obvious changes were observed in its UV-vis transmittance spectrum, showing long-term durability. Notably, the ink absorption of the ink-absorbing coating prepared using ZnO QDs@SiO2 is higher than that of the ink-absorbing coating prepared using commercially available silica. Therefore, a durable, highly transparent and ultraviolet shielded inkjet printing coating on PET can be prepared with ZnO QDs@SiO2 nanoparticles.
研究领域:
材料科学
·
纳米技术
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产品关联
DOI
高影响因子
PACKAGING TECHNOLOGY AND SCIENCE
·
2025
·
IF 3.7
Jian Zou,Gang Wang,Shuyu Duan,Chenyi Shi,Xiaobing Yun,Xiuhan Yang,Zhe Du,Huan Qiu,Winniford Bill
An isostatic aroma permeation measurement system was developed using a customized permeation cup and dynamic SPME-GC-FID coupled to a flow-cell unit. The limit of quantitation (LOQ) of the method ranged from 0.012 to 0.054 mg/m 3 with a PDMS-coated SPME Arrow, with typical linearity from 5 to 600 mg/m 3 . The system's repeatability on a polyethylene terephthalate (PET) film was between 8.7% and 25.0% (%RSD, n = 4). The results were verified using headspace GC–MS and thermal desorption GC–MS, with relative average deviation (%RAD) ranging from 6.0% to 20.7%. The aroma barrier performance of six film samples, including PET, biaxially oriented polypropylene (BOPP) and vacuum metalized polyethylene (PET//VMPE), was compared using this method with a mixture of five model aroma compounds, such as 2-methyl pyrazine, 2-heptanone and benzaldehyde. This method provides a sensitive, automated and low-cost solution for evaluating the aroma barrier performance of polymer films, with potential applications in the packaging industry.
研究领域:
分析化学
·
食品科学与工程
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DOI
高影响因子
LASER PHYSICS LETTERS
·
2018
·Vol. 15
·期 5
·055701
·
IF 2.235
Xi Liu,Meizhen Huang,Jie Chen,Lili Kong,Keihui Wang
A simple method, based on a roll-to-roll ultraviolet micro-pyramid imprinting technique and a nanoparticle self-assembling process in aqueous solution, to fabricate a large-area, flexible surface-enhanced Raman scattering (SERS) polyethylene glycol terephthalate substrate is proposed. The SERS substrate is demonstrated to be of high sensitivity. The detection concentration of Rhodamine 6G (R6G) measured by a portable Raman spectrometer is down to 10−9 mol l−1. The relative standard deviation values of different spots and different substrates are less than 13%. In addition, the feasibility for rapid detection of dye in herbal tea based on this SERS substrate and a portable Raman spectrometer is investigated. Three industrial dyes are employed to simulate the dyeing process. It is presented that R6G of 4.8\times {{10}^{-7}} g ml−1, malachite green of 10−6 g ml−1 and Auramine O of 10−6 g ml−1 in herbal tea could be detected rapidly. The experimental results imply that this method could be potentially applied in the field of dyed herbal tea detection.
研究领域:
分析化学
·
材料科学
·
食品安全
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）