Composites Communications最新文献

Construction of Al3+-carboxymethyl cellulose superhydrophilic layer on wood filter surface for highly efficient oil/water emulsion separation

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-26 DOI: 10.1016/j.coco.2024.102184

Zekai Mei , Shuting Ma , Shuzhen Ni , Weisheng Yang , Hongqi Dai , Fangong Kong

{"title":"Construction of Al3+-carboxymethyl cellulose superhydrophilic layer on wood filter surface for highly efficient oil/water emulsion separation","authors":"Zekai Mei , Shuting Ma , Shuzhen Ni , Weisheng Yang , Hongqi Dai , Fangong Kong","doi":"10.1016/j.coco.2024.102184","DOIUrl":"10.1016/j.coco.2024.102184","url":null,"abstract":"<div><div>Recently, there has been significant attention given to the development of oil-water emulsion separation filters made from renewable and inexpensive wood for the separation and purification of oily wastewater. However, the relatively large pore sizes of wood cross-section slices make it challenging to effectively separate emulsified oils (5–20 μm) in wastewater. We propose constructing a dense superhydrophilic layer of Al<sup>3+</sup>-carboxymethyl cellulose on the surface of a wood filter using a dip-coating process for separating oil/water emulsions. The Al<sup>3+</sup>-CMC layer exhibits stable surface superwettability with θ<sub>oil</sub> > 160° under water, which repels the non-polar oil phase and selectively allows water to pass through. The wood filter optimized for emulsion separation can achieve an efficiency of 96.32 % and a filtration flux of 410 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>. It maintains stable recyclables even after 6 cycles. The Al<sup>3+</sup>-CMC@DW filter shows considerable potential for practical applications in oil/water emulsion separation.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102184"},"PeriodicalIF":6.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the anti-frost performance of hydrophobic TiN-polymer composite coating on aluminum alloy surface 铝合金表面疏水 TiN 聚合物复合涂层的抗冻性能研究

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-26 DOI: 10.1016/j.coco.2024.102186

Yuheng Zong , Yun Zhao , Weiwei He , Yanhong Jia , Huirong Le

{"title":"Research on the anti-frost performance of hydrophobic TiN-polymer composite coating on aluminum alloy surface","authors":"Yuheng Zong , Yun Zhao , Weiwei He , Yanhong Jia , Huirong Le","doi":"10.1016/j.coco.2024.102186","DOIUrl":"10.1016/j.coco.2024.102186","url":null,"abstract":"<div><div>It is well known that the heat exchanger of refrigerator or air conditioner is prone to freezing or condensation, which will affect the cooling effect inside the refrigerator or air conditioner, leading to extra power consumption and bacteria growth. In this study, we developed a multi-step method to prepare hydrophobic surfaces. In the first step, a needle-like structure is made on the surface of the aluminum alloy (AA) by alkali etching. To improve the durability and stability of coatings, different polymers, such as thermoplastic polyurethanes (TPU) or epoxy resin (EP), was mixed with titanium nitride (TiN) particles. Subsequently, the titanium nitride composite coating was applied to the substrate by spraying process or physical brushing technology which could be scaled up in the industry directly. After the final fluorination step, the aluminum substrate was covered with a hydrophobic surface. The results of the contact angle test assumed the hydrophobicity of the EP/TiN/FAS-17 and TPU/TiN/FAS-17 composite coatings. Additionally, compared to the pure TiN coating, the light conversion rate of the composite coatings maintained similar levels while better mechanical strength was achieved. Last but not least, both composite coatings demonstrated excellent ability to hinder icing in frosting and facilitate ice melting in defrosting experiments, further demonstrating their potential for use in anti-icing applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102186"},"PeriodicalIF":6.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced stress relaxation resistance and strength-electrical conductivity combination of graphene reinforced Cu-0.5La composite wire for high temperature applications

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-26 DOI: 10.1016/j.coco.2024.102182

Yuqian Jiang , Xiang Zhang , Chunsheng Shi , Enzuo Liu , Dongdong Zhao , Xudong Rong , Naiqin Zhao , Chunnian He

{"title":"Enhanced stress relaxation resistance and strength-electrical conductivity combination of graphene reinforced Cu-0.5La composite wire for high temperature applications","authors":"Yuqian Jiang , Xiang Zhang , Chunsheng Shi , Enzuo Liu , Dongdong Zhao , Xudong Rong , Naiqin Zhao , Chunnian He","doi":"10.1016/j.coco.2024.102182","DOIUrl":"10.1016/j.coco.2024.102182","url":null,"abstract":"<div><div>The temperature-rise effect caused by the boom of high-power equipment for communications and transportation brings new challenges to the stress relaxation resistance and tensile properties of Cu wires at elevated temperatures. In order to meet higher property requirements, herein we introduced a graphene reinforced Cu-0.5La alloy (Gr/Cu-0.5La) composite wire prepared by in-situ synthesis and powder metallurgy methods. Thanks to the distribution of in-situ formed graphene and Gr-La<sub>2</sub>O<sub>3</sub> hybrid reinforcements at the grain boundaries, the mechanical properties of the composite wire were improved. The uniformly dispersed graphene at grain boundaries created a strong pinning force, which limited the mobility of the grain boundaries and ultimately improved their thermal stability. Notably, the composite wire exhibits significantly enhanced stress relaxation resistivity, demonstrating advantages over element doping strategy. Meanwhile, the electrical conductivity of the Gr/Cu-0.5La composite wire reaches 89.3 % IACS, accompanied by a reduced temperature coefficient of resistance. Cyclic stress relaxation tests revealed that the excellent high-temperature mechanical properties mainly come from the dislocation-controlled strengthening and deformation mechanisms. The excellent comprehensive performance achieved proposes the good application prospects of Gr/Cu-0.5La composite wire in a wide temperature range.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102182"},"PeriodicalIF":6.5,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale study on the synergistic effect of interface heat transfer and filler structure on enhancing the thermal conductivity of boron nitride/alumina/polyurethane composites 界面传热和填料结构对提高氮化硼/氧化铝/聚氨酯复合材料导热性协同效应的多尺度研究

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-24 DOI: 10.1016/j.coco.2024.102183

Zhan Liu , Jialiang Xie , Chengke Wang , Peng Zou , Xin Zhang , Baiping Xu , Junhui Li

{"title":"Multiscale study on the synergistic effect of interface heat transfer and filler structure on enhancing the thermal conductivity of boron nitride/alumina/polyurethane composites","authors":"Zhan Liu , Jialiang Xie , Chengke Wang , Peng Zou , Xin Zhang , Baiping Xu , Junhui Li","doi":"10.1016/j.coco.2024.102183","DOIUrl":"10.1016/j.coco.2024.102183","url":null,"abstract":"<div><div>The design and preparation of polymer composites for microelectronic package with high thermal conductivity is an important route to solve the thermal problem of electronic devices. The synergistic effect of interface heat transfer and hybrid filler structure on the enhancement of thermal conductivity in polyurethane composites was analyzed using a multiscale approach. Firstly, the interface heat transfer characteristics and strengthening mechanism of BN-TPU and Al<sub>2</sub>O<sub>3</sub>-TPU regulated by functionalization were analyzed by atomic scale calculation. Then, the thermal conductivity of BN/Al<sub>2</sub>O<sub>3</sub>/TPU composites under different interface thermal resistance, filler distribution, filler ratio and contents were studied through representative volume elements with interface layer structure. The results indicate that, due to the functionalized molecules increasing the phonon vibration overlap between the filler and matrix and thereby reducing the interface thermal resistance, the thermal conductivity of the composite materials shows an increasing trend with interface functionalization. Moreover, under the combined effects of constructing oriented BN structures, optimizing the ratio between BN and Al<sub>2</sub>O<sub>3</sub>, and regulating interface functionalization, the composites showed excellent thermal conductivity at low filler content. The research can provide important guidance for the preparation of highly thermal conductive polymer composites.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102183"},"PeriodicalIF":6.5,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-reliable polyurethane modified epoxy photosensitive composites for solder resist applications 用于阻焊应用的高可靠性聚氨酯改性环氧光敏复合材料

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-24 DOI: 10.1016/j.coco.2024.102180

Jialin Zhang , Jialin Tian , Tao Wang , Xialei Lv , Shuye Zhang , Jinhui Li , Guoping Zhang , Rong Sun

{"title":"High-reliable polyurethane modified epoxy photosensitive composites for solder resist applications","authors":"Jialin Zhang , Jialin Tian , Tao Wang , Xialei Lv , Shuye Zhang , Jinhui Li , Guoping Zhang , Rong Sun","doi":"10.1016/j.coco.2024.102180","DOIUrl":"10.1016/j.coco.2024.102180","url":null,"abstract":"<div><div>Developing solder resist ink (SR) with superior comprehensive performance through the chemical modification of epoxy resin (EP) using polyurethane oligomers (PU) is an effective strategy. In this study, a highly reliable SR was designed by chemically grafting -NCO terminated PU onto the -OH groups of the EP molecular chain. By adjusting the PU content, high flexibility, reliability, and adhesion of the EP-PU system were achieved. Compared to SR-0, when the PU content is 50 % of EP, under conditions of 85 % humidity, 130 °C temperature, and 1 V voltage, the failure time of SR-0.5 can be adjusted from 67.5 h to over 150 h, an increase of 150 %. This high-reliability characteristic makes it potentially useful in applications such as printed circuit board and packaging substrate manufacturing. Additionally, by adjusting the PU content in the EP-PU system, the degree of crosslinking in the EP-PU molecular chain can be controlled, resulting in excellent adhesion, alkali resistance, hydrophobicity, mechanical properties, low water absorption, and good thermal stability. The chemical modification of EP with PU provides a theoretical basis and technical support for the development of high-performance SR, while also offering more reliable material solutions for the advancement of the electronics industry.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102180"},"PeriodicalIF":6.5,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High impact resistance and energy absorption composite reinforced via shear thickening gel/angle interlocking for flexible wearable protective 高抗冲击性和能量吸收复合材料通过剪切增厚凝胶/角交错加固，可提供灵活的可穿戴保护

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-24 DOI: 10.1016/j.coco.2024.102181

Zixuan Liu , Xiayun Zhang , Yuwei Zhao , Yican Wang , Hongwei Tian , Lixia Jia , Bao Shi , Zhenhong Chen , Ruosi Yan

引用次数: 0

Mechanical recycling and performance characterisation of insert-injection moulded homo-polypropylene single-polymer composites and foams 插入式注塑均聚丙烯单聚合物复合材料和泡沫的机械回收和性能表征

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-23 DOI: 10.1016/j.coco.2024.102176

Jian Wang , Qichao He , Shulei Huang , Yue Cheng , Hang Li , Dongjie Chen

{"title":"Mechanical recycling and performance characterisation of insert-injection moulded homo-polypropylene single-polymer composites and foams","authors":"Jian Wang , Qichao He , Shulei Huang , Yue Cheng , Hang Li , Dongjie Chen","doi":"10.1016/j.coco.2024.102176","DOIUrl":"10.1016/j.coco.2024.102176","url":null,"abstract":"<div><div>Due to their easy recyclability and high sustainability, single-polymer composite (SPC) materials have been applied in various commercial products. Mechanical recycling can be efficiently conducted on SPCs without separation procedures. However, there is little research on the recycling of homopolymer-based SPCs. In this work, four injection moulded homo-polypropylene (PP) materials, including pure PP, microcellular PP foam (PPF), PPSPC, and PPSPC foam (PPSPCF), were recycled through shredding and hot-pressing. The mechanical properties of these recycled materials (R-PP, R-PPF, R-PPSPC, R-PPSPCF) were examined through bending and tensile tests, and the material's internal structure was revealed through thermal analysis, rheological tests, and morphological observation. The performance decline of R-PP demonstrates thermal-mechanical degradation. The microporous structure induces molecular chain stretching during shredding, and low-temperature hot-pressing can preserve fibres and the stretched molecular chain structure in the relative recycled materials while hindering molecular chain scission. Thus, R-PPSPC and R-PPSPCF showed superior mechanical properties compared to R-PP. However, hot-pressing conditions are essential to conserving the thermal stability of recycled samples. These findings have encouraging implications for the sustainable usage of recycled SPC materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102176"},"PeriodicalIF":6.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance PVdF-HFP/PEG-IL composites: The combined effects of PEG and ionic liquid on proton conductivity and dielectric characteristics 高性能 PVdF-HFP/PEG-IL 复合材料：PEG 和离子液体对质子传导性和介电特性的综合影响

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-21 DOI: 10.1016/j.coco.2024.102175

Mesut Yılmazoğlu , Hikmet Okkay , Ufuk Abaci , Ozan Coban

{"title":"High-performance PVdF-HFP/PEG-IL composites: The combined effects of PEG and ionic liquid on proton conductivity and dielectric characteristics","authors":"Mesut Yılmazoğlu , Hikmet Okkay , Ufuk Abaci , Ozan Coban","doi":"10.1016/j.coco.2024.102175","DOIUrl":"10.1016/j.coco.2024.102175","url":null,"abstract":"<div><div>This study explores the influence of varying polyethylene glycol (PEG) concentrations on the properties of PVdF-HFP/PEG-IL polymer composites through comprehensive characterization techniques, including FTIR, SEM, TGA, DMA, XRD and the detailed assessments of proton conductivity, dielectric properties, and relaxation dynamics. In terms of conductivity, the addition of PEG markedly improves proton conductivity. The PVdF-HFP/PEG40-IL composite exhibits the highest conductivity, reaching 1.96 × 10⁻<sup>2</sup> S/m at 1 MHz and 300 K, and increasing to 4.27 × 10⁻<sup>2</sup> S/m at 420 K. Dielectric properties show that the dielectric constant (ε′) increases with PEG content at low frequencies but decreases at higher frequencies due to reduced ionic polarization. Notably, PVdF-HFP/PEG40-IL achieves a dielectric constant of 3.39 × 10<sup>6</sup> at 20 Hz, which decreases to 30.34 at 1 MHz. Dielectric loss (ε'') also rises with temperature, with PVdF-HFP/PEG40-IL demonstrating the highest dielectric loss, indicative of superior proton conduction and polarization capabilities. Relaxation dynamics, as evidenced by tanδ, reveal that relaxation time significantly decreases with both increased PEG content and temperature, dropping from 1.06 × 10⁻<sup>4</sup> s to 2 × 10⁻<sup>6</sup> s as PEG concentration increases from 10 % to 40 %. This reduction in relaxation time correlates with enhanced proton conductivity and faster dipole relaxation, indicating PEG effect as a plasticizer that reduces polymer viscosity and improves ion transport. In conclusion, incorporating PEG into PVdF-HFP-IL composites leads to substantial improvements in proton conductivity, dielectric properties, and relaxation dynamics. The results highlight the crucial role of PEG in optimizing the performance of polymer electrolyte composites, making them effective candidates for advanced energy storage and conversion applications.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102175"},"PeriodicalIF":6.5,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142705785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An advanced nanoparticle reinforced carbon fiber laminates for low frequency sound insulation 用于低频隔音的先进纳米粒子增强碳纤维层压板

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-20 DOI: 10.1016/j.coco.2024.102164

Boyang Zhao , Jingjian Xu , Dan Sui , Jie Zhou , Heye Xiao

引用次数: 0

Core double-shell FeCo@SiO2@PPy nanocomposites for tunable and broadband electromagnetic wave absorption

IF 6.5 2区材料科学

Composites Communications Pub Date : 2024-11-20 DOI: 10.1016/j.coco.2024.102173

Longxia Yang , Faling Li , Yuping Duan , Haicheng Wang

{"title":"Core double-shell FeCo@SiO2@PPy nanocomposites for tunable and broadband electromagnetic wave absorption","authors":"Longxia Yang , Faling Li , Yuping Duan , Haicheng Wang","doi":"10.1016/j.coco.2024.102173","DOIUrl":"10.1016/j.coco.2024.102173","url":null,"abstract":"<div><div>Electromagnetic wave absorption materials are essential for dealing with military stealth and electromagnetic pollution. However, challenges remain in regards to material stability and achieving broadband absorption. Constructing magnetic-dielectric core-shell structural composites with good morphology is one of the effective strategies to realize high-performance electromagnetic wave absorption. Herein, FeCo@SiO<sub>2</sub>@polypyrrole (PPy) core double-shell nanocomposite with uniform shell thicknesses is synthesized by environmentally friendly polyol method, sol-gel method and in-situ oxidative polymerization method. FeCo@SiO<sub>2</sub>@PPy nanocomposites with different PPy shell thicknesses were synthesized, and tunable electromagnetic wave absorption had been achieved. The reasonable combination of magnetic and dielectric components and the design of core double-shell structure optimized impedance matching and attenuation characteristics, resulting in strong and broadband electromagnetic wave absorption (minimum reflection loss: −62.7 dB, effective absorption bandwidth: 7.0 GHz). This work could initiate a new insight into the design and modulation of advanced electromagnetic wave absorption materials with strong and broadband absorption properties.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"53 ","pages":"Article 102173"},"PeriodicalIF":6.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0