CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Jiasheng Wei,Lei Dai,Xiangju Xi,Zhuo Chen,Meng Zhu,Cuihua Dong,Shujiang Ding,Tingzhou Lei
An effective strategy was demonstrated to design an electromagnetic interference (EMI) shielding paper via a facile surface treatment on paper. TEMPO-oxidized cellulose nanofibers (TOCN) were first integrated with Ti 3 C 2 T x MXene, and subsequently cast onto a filter paper with cationic guar gum (CGG) in a sequential way. TOCN and CGG generated a self-assembling hydrogel and formed a MXene-containing hydrogel film on top of the filter paper. The hydrogel film enhanced the tensile strength (9.49 MPa) of composite paper, and resulted in a 17 % increase as compared to the control. The composite paper containing 80 mg MXene (namely, 2.07 mg·cm −2 ) showed a conductivity of 3843 S·m −1 and EMI shielding effectiveness (EMI SE) of 49.37 dB. Furthermore, the 2-layer assembled TC-M 80 hydrogel composite paper achieved an EMI SE of 73.99 dB. Importantly, this composite paper showed higher EMI SE and lower thickness than a lot of reported materials. The presence of TOCN and CGG also protected MXene against several solvents and the incorporation of polydimethylsiloxane (PDMS) further improved the durability of the composite paper. This work provides a novel and simple strategy to design robust, ultrathin and flexible EMI shielding materials, and it might also inspire other work in paper-based functional materials.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sensors
·
2024
·
IF 8.2
Fan Zhang,Hui Chi,Xiaotong Dong,Xiaona Huang,Kun Xu,Yungang Bai,Pixin Wang
An amino functionalized paper-based material that utilized amino functionalized polymer particles as sensing probes and adsorption sites was fabricated via internal sizing technology for application in formaldehyde detection and adsorption. A large specific surface area and the porous structure of the paper fibers enable the application of the composite paper-based material as a sensor at low concentrations of primary amine groups. The material reacts with low levels of formaldehyde, resulting in a concentration-based change in the pH, which is rapidly expressed as a color change. After exposure to formaldehyde (0.02 mg/m3) for 10 min, the color of the composite paper-based material changed from pink to brown, demonstrating the high sensitivity of the material, and this transition could be clearly observed using the naked eye. Additionally, the composite paper-based material acts as an adsorbent at a high content of amino groups, owing to a rapid addition reaction with formaldehyde, exhibiting a high adsorption capacity. Considering the high sensitivity, adsorption capacity, and adsorption speed for formaldehyde, the as-developed composite paper-based material exhibits promising application potential in the field of formaldehyde detection and adsorption.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NORDIC PULP & PAPER RESEARCH JOURNAL
·
2022
·Vol. 37
·期 3
·470-479
·
IF 1.595
Jingyi Nie,Xinming Liu,Jiantao Liang,Meiyun Zhang,Wenjia Han
Fillers are the second major component of paper, and can give certain properties to paper-based materials. However, if we want to use fillers to develop novel functional paper-based materials, some challenges have to be considered such as filler functionality, retention rate, and the negative effects. To meet with these challenges, the present work proposed a fabrication concept of bio-based composite fillers. The concept combined the crystallization of target component and the gelation process of chitosan (CS), simultaneously. The gels carried and protected the crystals, and served as bridge between crystal of fillers and the paper matrix. To explore and demonstrate the concept, CaCO 3 /CS bio-based composites were successfully fabricated. The composite fillers were further optimized to be suitable for paper-making. The fabrication concept could significantly increase the filler retention rate (up to 90.57 %), the filler bondability (increased over 10 times) and the mechanical strength (59.7 % higher than paper without fillers). The fabrication concept was also applicable to functional materials. Zeolitic imidazolate framework-8 (ZIF-8)/CS composite fillers were successfully fabricated, and endowed the resulted paper with high surface area (180 times higher than pure cellulose paper). This fabrication concept would be useful to develop functional paper-based materials in the future.
研究领域:
材料科学
·
造纸工程
·
功能材料
✓ 已验证
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2017
·
IF 2.625
Mi Zhang,Xiaobing He,Jie Wei
In this paper, we have developed a paper-based optical imaging material responding to visible light. This material consists of a thioxanthone (TX) derivative with the additional phenyl carbazole chromophore, namely 1-phenyl-11,12a-dihydrothiochromeno (3,2-b) carbazol-13 (5H)-one (TX-PC), and leuco crystal violet (LCV). TX-PC is newly synthesized and characterized by 1 HNMR, FTIR and high-resolution mass spectrometer. As a visible light absorbing Type II photoinitiator, TX-PC has an excellent absorption property in the visible region in the absence of an added co-initiator. In other words, TX-PC degrades into lively free radicals when irradiating under visible light which resulting in a color reaction on LCV . The degree of reaction is characterized by UV–vis spectrophotometer. In this study, this material is used for imaging within visible light because of the high efficiency color reaction. We coat a paper substrate with this TX-PC/LCV solution and cover with a pattern photomask. Under the irradiation of the visible light, color reaction occurs to irradiated area while the rest remains colorless. Thus the two areas are distinguished to obtain a clear image as same as the original version.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Bingzhen Liu,Fangfei Sun,Peiyuan Zhu,Kun Wang,Lincai Peng,Yongliang Zhuang,Hui Li
The growing interest in paper-based materials for packaging is driven by their renewable and eco-friendly characteristics. However, their poor barrier performance against water, oil, and gas limits their application in the food packaging industry. In this study, we developed a simple dual-layer coating method to create water- and oil-repellent, gas barrier, antioxidant, and antibacterial paper-based materials using naturally-derived materials, including chitosan (CS), ethyl cellulose (EC), and cascade biorefinery products from green walnut husk (GWHE and CNC). The bottom CS/CNC oil-resistant coating and the top EC/GWHE water-resistant coating were applied to the paper surface. The synergistic effect of these coatings enhances the gas barrier and imparts functional properties to the paper. Compared to uncoated paper, the dual-layer-coated paper demonstrated a 239.1 % increase in tensile index, a higher kit rating value of 12/12, a lower Cobb 60 value of 3.21 mg/m 2 , a 44.0 % decrease in water vapor permeability (WVP), and a 90.7 % reduction in air permeability (AP). Additionally, this coated paper exhibited good antioxidant and antibacterial properties and favorable biodegradability. This study provides novel insights into the valorization of GWH waste and presents a sustainable strategy for producing high-performance paper-based materials for food packaging applications.
研究领域:
材料科学
·
食品科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED ENERGY
·
2020
·
IF 8.848
Yulin Lv,Feng Gong,Hao Li,Qiang Zhou,Xinlin Wu,Wenbin Wang,Rui Xiao
Low-grade energy harvesting from the ambient environment promises to relieve the energy shortage in the remote regions or emergency needs. The reported materials employed for low-grade energy harvesting requires costly raw materials and highly technical skills, hindering the applications in isolated regions or after natural disasters. Herein, we report the use of commercial air-laid paper and carbon ink to harvest electrokinetic energy in the capillary flow. The paper-based electrokinetic power generator with size of 6 cm × 1 cm could continuously generate an output voltage of 0.35 V and current of 33.9 μA in the ambient condition (20 °C and 50% Relative Humidity). The output power could maintain for over 120 h. When connected in series and in parallel, the power generator with excellent flexibility could power some common electronic devices in the atmosphere, such as light-emitting diode, electronic calculator and watch. This work offers a rational approach to employing low-cost materials for ambient energy harvesting, thus advancing the application in portable and wearable electronic devices.
研究领域:
能源科学
·
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Fuyou Yu,Kun Wang,Hui Li,Lincai Peng
Paper-based food packaging materials have gained great interests along with increasing environmental concern and fossil energy crisis. Inspired by strong adhesion of marine mussels, we proposed a simple and facile method to prepare a durable paper-based packaging material in combination of superhydrophobicity and ethylene scavenging capability, which is first surface decoration of polydopamine (PDA) on paper surface followed by immersion into mixture solution containing halloysite nanotubes (HNTs), polydimethylsiloxane (PDMS) and stearic acid (SA). The PDMS/SA/HNTs@PDA-coated paper with a WCA of 157.5° exhibited excellent anti-fouling, self-cleaning and potential application in liquid food packaging. The obtained functional paper not only presented improved mechanical, barrier properties and outstanding anti-bacterial adhesion, but also could effectively extend shelf-life of cherry tomatoes under ambient conditions. After suffering from various rigorous treatments, the resultant multifunctional paper still exhibited excellent superhydrophobic durability. This study provided a new insight into fabrication of multifunctional paper-based materials for food packaging applications.
研究领域:
材料科学
·
食品科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Changmei Lin,Zhenhao Pei,Jun Chen,Jinxin Lan,Hai Huang,Xiaojuan Ma,Shilin Cao
Tactile sensors are an important area in developing electronic skins and human–machine interfacing. Herein, we reported an eco-friendly cellulose paper based tactile sensor driven by a triboelectric nanogenerator (TENG). Enabled by the surface modification of polymethylhydrosiloxane (PMHS) and polypyrrole (PPy), the triboelectric negative performance and conductivity of cellulose paper were improved; therefore, the modified cellulose paper could be applied to the triboelectric negative material and electrode for TENG. At the contact and separation mode (CS mode), the short-circuit current (ISC), open-circuit voltage (VOC), and power density of the corresponding device were improved to 0.52 μA, 11.6 V, and 736.9 μW/m2. In addition, a single-electrode TENG based on this modified cellulose paper was also obtained by pairing it with human skin. The results indicated that this single-electrode TENG could generate a voltage of 23.8 V, current of 1.1 μA, and surface charge of 4.3 nC. Meanwhile, a tactile sensor for written stroke recognition based on the single-electrode TENG was also demonstrated.
研究领域:
材料科学
·
生物医学工程
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 39
·14560-14568
·
IF 8.067
Qingtao Li,Wenke Yang,Kang Sun,Yan Guo,Hu Liu,Chuntai Liu,Changyu Shen
Flexible wearable electromagnetic interference (EMI) shielding materials have attracted great attention with the development of portable electronic devices, and paper based EMI shielding materials turn to be ideal candidates due to their flexibility, biodegradability and low cost. In this study, conductive MXene nanosheet decorated paper was developed through a simple dip-coating technique, where the MXene nanosheets can be strongly adhered onto the surface of cellulose fiber to construct an effective conductive network. Meanwhile, a low surface energy and micro–nano-structured 1H,1H,2H,2H-perfluorodecanethiol (PFDT)/carbon black (CB) layer was further introduced onto the surface to construct a superhydrophobic surface, avoiding the hygroexpansion of paper in water or moisture environments effectively. As a result, the prepared PFDT/CB/MXene@Paper exhibits reflection dominant EMI shielding performance, and a specific SE value of up to 3339.6 dB cm−2 g−1 was achieved. Importantly, the EMI shielding performance can be well maintained towards cyclic bending and in various acid, alkali, salt, and UV environments, which enhance the applicability of paper based functional materials significantly. Finally, its high conductivity also endows it with good Joule heating performance, improving the wearing comfort when used as a wearable EMI shielding material. This study will undoubtedly provide a high-efficiency design strategy for fabricating high-performance paper based EMI shielding materials.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Nan Li,Sufeng Zhang,Yali Liu,Valentin Nica,Sergiu Coseri
Cellulose-based materials are currently considered prime candidates for replacing petrochemical plastics because they are biodegradable and cost-effective, while the insufficient hydrophobicity makes them fail to meet application demands, which is a primary issue to be addressed. This work developed a green, catalyst-free approach to prepare high-hydrophobicity amidated cellulose (ADC) by anchoring the COOH-containing oleic acid (OLA) onto NH 2 -containing aminated cellulose (AMC) via amide bonds. The unsaturated fatty acid tail provides a hydrophobic barrier in ADC films . The surface water contact angle of the ADC film reached 133° and remained above 110° for at least one hour. Subsequently, the ADC suspension was applied on the surface of paper from old corrugated container (P-OCC) by an impregnation approach to investigate the improvement of hydrophobic properties. The results showed that the hydrophobicity of P-OCC was increased by ADC, with the water contact angle reached to 132° from 0°. Noticeably, the tensile strength of the ADC impregnated P-OCC (A-POCC) also increased by 2 times. This indicates that with excellent hydrophobicity and mechanical strength , the ADC has great potential application in green functional coating materials.
研究领域:
高分子材料科学
·
表面与界面化学
·
生物质功能材料
·
绿色化学
·
包装材料工程
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2021
·Vol. 28
·期 8
·5033-5053
·
IF 5.044
Li Hui,Zhang Huimin,Luo Yiding,Shi Hongbo,Peng Lincai
Abstract Traditional superhydrophobic materials for oil/water separation not only depend on non-renewable materials but also lead to secondary environmental pollution after use due to their non-biodegradation and introduction of toxic fluorochemicals. Herein, we reported a facile method to prepare durable and sustainable superhydrophobic-superoleophilic paper, which is combination of layer-by-layer (LBL) assembly of ZnO nanoparticles and carrageenan (CR) together with following polydimethylsiloxane (PDMS) modification. The surface chemical composition, zeta potential, surface morphology, surface wettability and strength property of the modified paper were investigated. The PDMS/(ZnO/CR) 7 multilayer-modified paper showed superhydrophobic-superoleophilic property and 2.6 % improvement in tensile strength compared with original paper. Meanwhile, this superhydrophobic paper exhibited excellent anti-bacterial adhesion ability and photodynamic bactericidal activity, which were more effective in preventing and eliminating bacterial contamination. Besides, the resultant paper had excellent self-cleaning, anti-fouling and water repellency properties, showed excellent separation performances for stratified oil-water mixture and water-in-oil emulsion as well as good recyclability. The obtained superhydrophobic paper also presented excellent mechanical robustness and environmental stability. We believed that superhydrophobic paper prepared in this study could have promising potential as an environmental-benign and effective oil/water separation material. Graphic Abstract
研究领域:
材料科学
·
环境科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Zaihua Duan,Zhen Yuan,Yadong Jiang,Qiuni Zhao,Qi Huang,Yajie Zhang,Bohao Liu,Huiling Tai
The power generation humidity sensors based on the principles of triboelectricity , piezoelectricity and ion diffusion have been proposed in recent years. However, these power generation humidity sensors usually have complex preparation process and application limitation. Here we develop a simple Cu/NaCl paper/Al power generation (CPG) humidity sensor based on primary battery structure. Combined with the hydrophilicity of paper and the chemical reactions of primary battery, the CPG humidity sensor can spontaneously output voltage and shows good humidity sensing properties at 41.1–91.5% relative humidity (RH). Specifically, a single CPG humidity sensor can output 0.58 V at 91.5% RH with a power of 1.33 μW. Benefiting from good humidity sensing performance and material safety, the CPG humidity sensor has been proved to have potential applications in respiratory rate, diaper monitoring and non-contact switch. Through the series integration of 8 CPG humidity sensors, it can realize an output voltage of 4.21 V and charge the capacitor, proving the potential self-powered characteristic of the CPG humidity sensor. This research not only proposes a simple, low-cost and eco-friendly power generation humidity sensor, but also opens a new pathway for power generation humidity sensor.
研究领域:
材料科学
·
能源技术
·
传感技术
✓ 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）