Polymers for Advanced Technologies最新文献_第7页

Multiobjective optimization of resin transfer molding curing process for silicon‐containing arylacetylene resin‐matrix composites 多目标优化含硅芳基乙炔树脂基复合材料的树脂传递模塑固化工艺

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-17 DOI: 10.1002/pat.6586

Chaoen Jin, Lei Wang, Huamei Zhu, Fan Wang, Yaping Zhu, Huimin Qi

{"title":"Multiobjective optimization of resin transfer molding curing process for silicon‐containing arylacetylene resin‐matrix composites","authors":"Chaoen Jin, Lei Wang, Huamei Zhu, Fan Wang, Yaping Zhu, Huimin Qi","doi":"10.1002/pat.6586","DOIUrl":"https://doi.org/10.1002/pat.6586","url":null,"abstract":"Silicon‐containing arylacetylene resin (PSA)‐matrix composites hold great potential for aerospace applications due to their excellent heat resistance. In recent years, many PSAs with specific functions have been designed via materials genome approach (MGA), and appropriate resin transfer molding (RTM) curing processes need to be screened to strike a balance between low cost and high quality. In this study, a novel tool based on finite element curing simulation and multiobjective genetic algorithm was developed to optimize the RTM curing process for novel PSA‐matrix composites. The silicon‐containing fluorenylacetylene resin (PSA‐VBF) was selected as the object to systematically characterize its apparent curing kinetics. To address the problem of explosive polymerization of the resin at the injection port during the RTM process, a multiobjective optimization of the curing process using a genetic algorithm was performed to obtain the Pareto front with the maximum temperature gradient at the injection port of the resin, the maximum degree of cure gradient of the composites, and the process time as the objectives. A global sensitivity analysis was also conducted to identify the key parameters. The results demonstrate that the optimized curing process can significantly reduce the temperature gradient and the curing degree gradient with improved curing efficiency.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"17 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fluorine‐free, self‐healing, and superhydrophobic coating for efficient oil/water separation and fog‐water collection 无氟、自修复和超疏水涂层，可实现高效油水分离和雾水收集

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-14 DOI: 10.1002/pat.6584

Yuzhu Hu, Meng Zhou, Xinya Zhang, Heqing Fu

{"title":"Fluorine‐free, self‐healing, and superhydrophobic coating for efficient oil/water separation and fog‐water collection","authors":"Yuzhu Hu, Meng Zhou, Xinya Zhang, Heqing Fu","doi":"10.1002/pat.6584","DOIUrl":"https://doi.org/10.1002/pat.6584","url":null,"abstract":"Superhydrophobic coatings have been used to solve the problems of oil spills polluting water sources and water resource shortages. However, the short service life of superhydrophobic coatings limit their widely application. In this work, a novel fluorine‐free, self‐healing, and superhydrophobic coating composing of polydimethylsiloxane (PDMS), polydopamine (PDA) modified halloysite nanotubes (HNT), and beeswax (BW) are fabricated for oil/water separation as well as fog‐water collection. Herein, PDA stabilizes the dispersion of HNT in the coating, and meanwhile enhances the adhesion of modified nanoparticles on fabric surfaces. The as‐fabricated coatings occupied a water contact angle of 163.1°, demonstrating exceptional superhydrophobic characteristics. The superhydrophobic coating exhibited superior oil/water separation efficiency of over 99.5% and outstanding fog‐water collection rate of 990 ~ 1208 mg cm−2 h−1. Owing to the presence of BW, the coatings demonstrated remarkable self‐healing properties and can regain superhydrophobicity after 100 wear cycles with just a short heating treatment. Therefore, this facile strategy has great potential for large‐scale manufacturing of multifunctional superhydrophobic coatings.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"78 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sound absorption properties and mechanism of multi‐layer micro‐perforated nanofiber membrane 多层微穿孔纳米纤维膜的吸音特性和机理

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-14 DOI: 10.1002/pat.6583

Xiaofei Shao, Xiong Yan

{"title":"Sound absorption properties and mechanism of multi‐layer micro‐perforated nanofiber membrane","authors":"Xiaofei Shao, Xiong Yan","doi":"10.1002/pat.6583","DOIUrl":"https://doi.org/10.1002/pat.6583","url":null,"abstract":"Aiming at achieving low‐frequency and broadband sound absorption under the premise of light and thin layers, in this paper, polyvinyl butyral (PVB) nanofiber membranes were micro‐perforated and then combined sequentially to prepare multi‐layer micro‐perforated nanofiber membrane (MPNM) for acoustic noise reduction. It was demonstrated that the multi‐layer MPNM exhibited a high absorption (constantly over 50%) in the frequency of 480–2500 Hz. In addition, the established theoretical model of the sound absorbing coefficient can accurately predict the sound absorption performance of the structure with different layers, which can provide a theoretical foundation for the design of the structure of the nanofibrous membrane acoustic absorber. Based on the proposed acoustic model, the relationships between the absorption properties and the parameters were investigated, and it was found that the effective acoustic absorption frequency range and acoustic absorption coefficient curve of the multi‐layer MPNM were closely related to the size and arrangement of hole diameter, perforation rate, fiber membrane thickness, and cavity depth. Optimization of the structural parameters utilizing algorithms can achieve superior sound absorption performance, with an average absorption coefficient of 0.81 in the frequency of 100–2500 Hz. This study provides a theoretical and experimental basis for the development of low‐frequency sound‐absorbing materials and is of great significance for optimizing the acoustic performance of nanofiber membranes and expanding their applications in various acoustic engineering applications.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"29 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultraviolet curing technology plus chemical copper plating: A novel method for producing highly durable fabric‐based flexible circuit 紫外线固化技术加化学镀铜：生产高耐用织物基柔性电路的新方法

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-12 DOI: 10.1002/pat.6563

Maojiang Zhang, Kexin Cui, Xinwei Zhang, Jinghua Wang, Minglei Wang, Yanfu Wu, Chunlei Dong, Jie Gan, Jiangtao Hu, Guozhong Wu

{"title":"Ultraviolet curing technology plus chemical copper plating: A novel method for producing highly durable fabric‐based flexible circuit","authors":"Maojiang Zhang, Kexin Cui, Xinwei Zhang, Jinghua Wang, Minglei Wang, Yanfu Wu, Chunlei Dong, Jie Gan, Jiangtao Hu, Guozhong Wu","doi":"10.1002/pat.6563","DOIUrl":"https://doi.org/10.1002/pat.6563","url":null,"abstract":"The construction of flexible circuits is a crucial and challenging aspect in the design and fabrication of fabric‐based flexible electronics, which hold significant potential for various applications. In this study, we successfully developed high‐precision and durable fabric‐based flexible circuits by ingeniously combining ultraviolet light (UV)‐curing technology with chemical plating. Specifically, a UV coating containing Ag/Fe3O4 catalysts was applied onto polyester fabric surface, followed by printing the designed circuit structure diagram onto the fabric using UV light‐directed curing of the coating, and fabric‐based flexible circuits were then fabricated through chemical plating process. The fabric‐based flexible circuits exhibit only minimal increases in resistance following durability testing, including bending (8000 times), abrasion (2000 times), high and low temperature stability (−30 to 60°C), and high temperature/humidity stability (65°C, RH = 95%, 48 h), which remains consistently stable. This developed technology holds immense potential across various applications for smart wearable devices.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"61 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of printing parameters on the mechanical properties of 3D printed short glass fiber/acrylonitrile butadiene styrene composites 打印参数对 3D 打印短玻璃纤维/丙烯腈-丁二烯-苯乙烯复合材料机械性能的影响

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-12 DOI: 10.1002/pat.6576

Moein Rahmati, Abbas Zolfaghari

{"title":"Effect of printing parameters on the mechanical properties of 3D printed short glass fiber/acrylonitrile butadiene styrene composites","authors":"Moein Rahmati, Abbas Zolfaghari","doi":"10.1002/pat.6576","DOIUrl":"https://doi.org/10.1002/pat.6576","url":null,"abstract":"Three‐dimensional (3D) printing, or additive manufacturing (AM), is rapidly advancing, allowing for the creation of objects from a digital model through the successive addition of materials. Among the AM techniques, fused deposition modeling (FDM) emerges as one of the most promising and extensively utilized methods. However, the inherent mechanical shortcomings of the deposition of pure thermoplastic materials necessitate the improvement of mechanical properties. One viable approach involves integrating reinforcing fibers into the thermoplastic matrix to create polymer composites suitable for structural applications. In this study, the mechanical properties of acrylonitrile butadiene styrene (ABS) reinforced with short glass fibers (SGFs) printed by FDM were investigated. The aim was to explore the impact of process parameters, including nozzle temperature, number of shells, and print speed, on the tensile properties and interlaminar shear strength (ILSS). Composite filament with 10% weight fraction (10 wt%) of glass fiber fabricated. Also, the mechanical properties of the composite and pure polymer were investigated. The length of the fibers was measured after the extrusion and printing process, revealing that they had been damaged. The shells exerted the most significant influence on test outcomes.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"252 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic toughening effects of elastomer toughener and nucleating agent on mechanical properties and crystallization behaviors of polypropylene 弹性体增韧剂和成核剂对聚丙烯机械性能和结晶行为的协同增韧效应

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-11 DOI: 10.1002/pat.6578

Ziwen Yin, Deyu Wei, Qing Lin, Hanlin Tian, Jinshuo Yu, Yanbo Li, Huiwen Deng, Zepeng Wang, Hongwei Pan, Yan Zhao, Huiliang Zhang

{"title":"Synergistic toughening effects of elastomer toughener and nucleating agent on mechanical properties and crystallization behaviors of polypropylene","authors":"Ziwen Yin, Deyu Wei, Qing Lin, Hanlin Tian, Jinshuo Yu, Yanbo Li, Huiwen Deng, Zepeng Wang, Hongwei Pan, Yan Zhao, Huiliang Zhang","doi":"10.1002/pat.6578","DOIUrl":"https://doi.org/10.1002/pat.6578","url":null,"abstract":"A novel thermoplastic elastomer, kernel resin (KN), α‐nucleating agent (HPN), and β‐nucleating agent (DCHT), which acted as toughener and nucleating agents (NAs), were used to improve the mechanical properties and crystallization behaviors of isotactic polypropylene (PP). The impact strength of the PP/KN blends increased significantly with increase in KN concentration. Surprisingly, the impact strength of PP/KN/NA blends improved further upon addition of NA. The toughening effect of DCHT was stronger than that of HPN. The maximum impact strength of PP/KN/DCHT blend reached 69.2 kJ/m2 when the DCHT content was 0.05%, which was six times higher than that of neat PP. The SEM images of fractured surfaces of the blends showed a change from brittle fracture to ductile fracture. Moreover, the WAXD results showed that the incorporation of HPN promoted the formation of the α form of crystalline PP. Addition of DCHT induced the generation of α‐β crystal transition of PP. Furthermore, differential scanning calorimetry showed that the crystallizability and the overall crystallization rate of PP were enhanced by the addition of KN and NA. The half‐crystallization time of PP at 128°C decreased from 5.52 (neat PP) to 0.34 min (PP/KN/DCHT‐0.3).","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"12 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional strain sensor with adjustable conductive network for wearable applications 带可调导电网络的多功能应变传感器，适用于可穿戴应用

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-11 DOI: 10.1002/pat.6577

Qiaoling Huang, Yuanyuan Feng, Xinming Dai, Shuang Guo, Shuning Ma, Amir A. Abdelsalam, Sensen Han

{"title":"Multifunctional strain sensor with adjustable conductive network for wearable applications","authors":"Qiaoling Huang, Yuanyuan Feng, Xinming Dai, Shuang Guo, Shuning Ma, Amir A. Abdelsalam, Sensen Han","doi":"10.1002/pat.6577","DOIUrl":"https://doi.org/10.1002/pat.6577","url":null,"abstract":"Wearable sensors based on nanomaterials have recently elicited keen research interest and potential for a new range of flexible devices. This paper presents a simple method for the preparation of laser‐induced porous graphene (LIG) and discusses its application in monitoring human vital signs. LIG formed on a polyimide (PI)/polydimethylsiloxane (PDMS) composite material exhibits inherent high stretchability (over 30%), eliminating the need for transfer processes used in LIG prepared by laser scribing on PI films. LIG/CuSO4 composite materials, with different concentrations of Cu particles, show tunable mechanical and electronic properties based on laser‐induced graphene. The fabricated LIG demonstrates good cyclic stability and a nearly linear resistance response to tensile strain, making it suitable for wearable electronic devices, the maximum strain value and linear response to applied strain from 3% to 79%. The sensor exhibits a fast response time and high sensitivity, enabling real‐time detection of human pulse, joint motion, and complex dynamics. The multifunctionality advantages of LIG flexible sensor offer potential applications in next‐generation wearable electronics.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"37 5 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancement of constant and progressive load multi‐cycle indentation method on surface properties characterization of polymers 恒定和渐进加载多循环压痕法在聚合物表面特性表征中的应用进展

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-11 DOI: 10.1002/pat.6573

Soumya Ranjan Guru, Mihir Sarangi

{"title":"Advancement of constant and progressive load multi‐cycle indentation method on surface properties characterization of polymers","authors":"Soumya Ranjan Guru, Mihir Sarangi","doi":"10.1002/pat.6573","DOIUrl":"https://doi.org/10.1002/pat.6573","url":null,"abstract":"In recent years, polymers have been popular in industrial applications due to their lightweight, corrosion‐resistant, improved surface polish, ease of manufacturing, cost‐effectiveness, and so forth. Similarly, micro/nano‐indentation has gained popularity as a technique for assessing the surface mechanical characteristics of polymers. The present study conducted comprehensive experiments using cyclic micro‐indentation on engineering polymers, specifically poly‐ether‐ether‐ketone (PEEK), poly(methyl methacrylate) (PMMA), and poly(tetra‐fluoroethylene) (PTFE). An appropriate and optimal indentation method has been proposed after analyzing the behavior and significance of all the input parameters in evaluating the properties. Both constant load multi‐cycle (CLMC) and progressive load multi‐cycle (PLMC) were considered for this investigation. A comparative evaluation has been conducted to assess two multi‐cycle tests on these materials. From the analysis of the input parameters, including maximum loads, loading and unloading rates, and the number of cycles, the unloading rate and indentation cycle are crucial factors in determining hardness (H) and elastic modulus (E). Increasing the loading rates leads to an increase in H and a reduction in E for all three materials. This effect arises from the thermal effect, which is characterized by the creep modulus and a closed hysteresis loop. Employing the holding duration and multiple cycle data in constant load multi‐cycle can significantly influence the creep behavior and use of the hysteresis loop for fatigue behavior. Similarly, a progressive load multi‐cycle indentation with a force greater than 0.5 N and a minimum of five cycles is the most accurate approach for evaluating surface mechanical parameters.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"14 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of gamma‐polyglutamic acid microgel by Bacillus species: Industrial applications and future perspectives 用芽孢杆菌生产γ-聚谷氨酸微凝胶：工业应用和未来展望

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-11 DOI: 10.1002/pat.6565

Priti Pal, Akhilesh Kumar Singh, Prakash Kumar Sarangi, Uttam Kumar Sahoo, Harikesh B. Singh, Sanjukta Subudhi, Thangjam Anand Singh

{"title":"Production of gamma‐polyglutamic acid microgel by Bacillus species: Industrial applications and future perspectives","authors":"Priti Pal, Akhilesh Kumar Singh, Prakash Kumar Sarangi, Uttam Kumar Sahoo, Harikesh B. Singh, Sanjukta Subudhi, Thangjam Anand Singh","doi":"10.1002/pat.6565","DOIUrl":"https://doi.org/10.1002/pat.6565","url":null,"abstract":"γ‐Polyglutamic acid (γ‐PGA) microgel, produced by Bacillus spp., represents a promising biomaterial with diverse industrial applications due to its biodegradability, biocompatibility, and nontoxic nature. This review explores the current methodologies in the industrial production of γ‐PGA microgel, emphasizing the optimization of fermentation conditions, genetic engineering of Bacillus strains, and advances in downstream processing techniques. Key applications in pharmaceuticals, agriculture, and environmental management are discussed, highlighting its role in drug delivery systems, as a biocontrol agent, and in wastewater treatment. Future perspectives include enhancing production efficiency through synthetic biology, expanding its application scope, and addressing economic and regulatory challenges to facilitate broader adoption. The integration of innovative technologies and multidisciplinary approaches is crucial for the sustainable development and commercial success of γ‐PGA microgel.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"11 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A wideband flexible antenna utilizing PMMA/PVDF‐HFP/PZT polymer composite film and silver‐based conductive ink for wearable applications 利用 PMMA/PVDF-HFP/PZT 聚合物复合膜和银基导电墨水的宽带柔性天线，适用于可穿戴应用

IF 3.4 4区工程技术

Polymers for Advanced Technologies Pub Date : 2024-09-11 DOI: 10.1002/pat.6575

Saïd Douhi, Abdelkrim Boumegnane, Nabil Chakhchaoui, Adil Eddiai, Omar Cherkaoui, M'hammed Mazroui

{"title":"A wideband flexible antenna utilizing PMMA/PVDF‐HFP/PZT polymer composite film and silver‐based conductive ink for wearable applications","authors":"Saïd Douhi, Abdelkrim Boumegnane, Nabil Chakhchaoui, Adil Eddiai, Omar Cherkaoui, M'hammed Mazroui","doi":"10.1002/pat.6575","DOIUrl":"https://doi.org/10.1002/pat.6575","url":null,"abstract":"The relentless drive towards miniaturization and seamless integration of electronic components in wireless communications and wearable devices has significantly increased the demand for flexible, cost‐effective composites with high dielectric constants and low losses. This study presents a wideband, low‐profile, and flexible antenna with excellent on body radiation performance for wearable applications. The antenna is designed using a low‐loss composite film based on PMMA‐PVDF‐HFP‐PZT and silver‐based ink. The proposed flexible antenna exhibits a wide bandwidth of 132.16% with a voltage standing wave ratio (VSWR) of less than two. It achieves a peak gain of 2.76 dBi at 2.92 GHz and maintains a maximum radiation efficiency of 80% across the 1.26–6.17 GHz frequency range. These characteristics demonstrate that the antenna is an effective solution for achieving high data rates and reliable communication links. The antenna's suitability for wearable applications is assessed by testing it on a simulated human body and analyzing its behavior under physical deformation. The results under bending showed only a minimal frequency detuning, which is negligible given the antenna's wide operational bandwidth. The specific absorption rate (SAR) analysis shows values of approximately 1.88 W/kg at 3.5 GHz with an input power of 0.5 W, and 0.279 W/kg at 5.8 GHz with an input power of 0.45 W, which complies with established safety limits for exposure. Overall, these results suggest that the proposed antenna is a viable solution for integration into wearable medical devices, such as a doctor's chest badge, enabling noncontact interactions and reducing the risk of bacterial contamination.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"15 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0