Fibers and Polymers最新文献_第3页

Fully Automatic and Precisely Woven Fabric Defect Detection Using Improved YOLOv7-Tiny Model Utilizing Enhanced Residual Convolutional Network 基于增强残差卷积网络的改进YOLOv7-Tiny模型的全自动精密机织织物缺陷检测

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-10 DOI: 10.1007/s12221-024-00811-1

Jagadish Barman, Chung-Feng Jeffrey Kuo

{"title":"Fully Automatic and Precisely Woven Fabric Defect Detection Using Improved YOLOv7-Tiny Model Utilizing Enhanced Residual Convolutional Network","authors":"Jagadish Barman, Chung-Feng Jeffrey Kuo","doi":"10.1007/s12221-024-00811-1","DOIUrl":"10.1007/s12221-024-00811-1","url":null,"abstract":"<div><p>The field of fabric defect detection has undergone a transformative journey marked by the evolution of object detection models. From traditional approaches to advanced deep learning architectures, these models have addressed crucial challenges in the textile industry. YOLOv7-tiny model stands out as a remarkable solution, demonstrating unprecedented performance in fabric defect detection. Its enhanced architecture addresses key industry issues, including high-resolution images, small defect sizes, and imbalanced datasets. Therefore, the aim of this paper is to incorporate the YOLOv7 model with improvements to detect woven fabric defects in real time. Augmenting the Enhanced Residual Convolutional Network (ERCN) with extra Convolutional, batch normalization and leaky rectified linear unit (CBL) layers enhances hierarchical feature extraction, while the two-concatenation technique adds complexity for richer representations. Reducing CBL layers in Efficient layer aggregation networks-downgrade (ELAN-D) streamlines and optimizes, emphasizing a balanced approach in the YOLOv7-tiny model for targeted objectives. The improved YOLOv7-tiny model excels in achieving a delicate balance between accuracy and efficiency, vital for practical applications in the textile sector. This model’s accuracy, with a mAP of 84% at a 0.50 threshold and 40% at 0.50:0.95 showed exceptional in comparisons to other models. The model also boasts a high accuracy of 98% and operates at a commendable detection speed of 90 fps, meeting real-time demands in fabric production. Recognizing defects as small as 1 mm, the YOLOv7-tiny model emerges as a pivotal tool in automating fabric defect detection and optimizing textile quality management processes.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"353 - 368"},"PeriodicalIF":2.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994583","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

Effects of Ether Linkage and Benzene Ring Substitution Structures on Thermal and Optical Properties of 6FDA/3DDS-Based Transparent Polyimide Films 醚键和苯环取代结构对6FDA/ 3dds透明聚酰亚胺薄膜热光学性能的影响

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-09 DOI: 10.1007/s12221-024-00793-0

Hansol Ma, Min Ho Jee, Kyung-Eun Kim, Doo Hyun Baik

{"title":"Effects of Ether Linkage and Benzene Ring Substitution Structures on Thermal and Optical Properties of 6FDA/3DDS-Based Transparent Polyimide Films","authors":"Hansol Ma, Min Ho Jee, Kyung-Eun Kim, Doo Hyun Baik","doi":"10.1007/s12221-024-00793-0","DOIUrl":"10.1007/s12221-024-00793-0","url":null,"abstract":"<div><p>This study reports the thermal and optical properties of a transparent polyimide (PI) film system incorporating trifluoromethyl (CF<sub>3</sub>-), ether (-O-), and sulfone (-SO<sub>2</sub>–) functionalities into the polymer backbone by co-polymerizing 4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and bis(3-aminophenyl) sulfone (3DDS)-based transparent PI with additional diamine monomers such as bis[4-(4-aminophenoxy)phenyl] sulfone (p-BAPS) and bis[4-(3-aminophenoxy)phenyl] sulfone (m-BAPS). Our findings clearly demonstrate that the introduction of p-BAPS and m-BAPS monomers into the 6FDA/3DDS-based PI system significantly influences the thermal and optical properties of the resulting PI films. Specifically, the glass transition temperature (T<sub>g</sub>) of the 6FDA/3DDS/p-BAPS-based PI film increased by approximately 10 °C compared to the pristine 6FDA/3DDS-based PI film, while the yellowness index (YI) decreased from 12.75 to 3.76. On the other hand, the T<sub>g</sub> of the 6FDA/3DDS/m-BAPS-based PI film decreased by about 5 °C compared to the pure 6FDA/3DDS-based PI film, but nevertheless, the YI value decreased from 12.75 to − 1.85 and the optical properties were improved compared to the 6FDA/3DDS-based PI film. Based on these observations, it was reasonably concluded that the simultaneous introduction of flexible ether bonds and rigid, linear benzene rings would not only minimize the thermal degradation of the final PI film due to the introduction of comonomers but also improve its thermal and optical properties simultaneously. Thus, we believed that this study will provide valuable insights on the simultaneous enhancement of the thermal and optical properties of PI system through the combination of various monomers, such as introducing flexibility into the polymer backbone and reinforcing the rigid ring structure and substituent configurations.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"19 - 25"},"PeriodicalIF":2.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994620","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

Synthesis of Poly(Butylene Adipate-co-Butylene-2,6-Naphthalate) Copolymer and Fibers: Characteristics, Thermal and Mechanical Properties 聚己二酸丁二烯-共丁二烯-2,6-萘二酸酯共聚物的合成及其纤维：特性、热性能和力学性能

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-09 DOI: 10.1007/s12221-024-00805-z

Hsu-I. Mao, Yuan-Kai Peng, Jui-Yang Chou, Wen-Tzu Wu, Chin-Wen Chen

{"title":"Synthesis of Poly(Butylene Adipate-co-Butylene-2,6-Naphthalate) Copolymer and Fibers: Characteristics, Thermal and Mechanical Properties","authors":"Hsu-I. Mao, Yuan-Kai Peng, Jui-Yang Chou, Wen-Tzu Wu, Chin-Wen Chen","doi":"10.1007/s12221-024-00805-z","DOIUrl":"10.1007/s12221-024-00805-z","url":null,"abstract":"<div><p>This study aimed to improve the spinnability of poly(butylene adipate) polyester through the addition of naphthalene ring structures. First, poly(butylene adipate-<i>co</i>-buthylene-2,6-naphthalate) (PBABN) copolyesters of different ratios were produced through a one-pot polymerization of 1,4-butanediol, adipic acid, and 2,6-naphthalene dicarboxylate (NDC). All PBABN copolyesters maintained good thermal stabilities. As the naphthalene content was increased from 0 to 100 mol%, the glass transition temperature (<i>T</i><sub>g</sub>) of the PBABN copolyester increased from − 60 to 90 °C while its melting temperature (<i>T</i><sub>m</sub>) increased from 50 to 240 °C. When 30 mol% BN units were added, the elongation at break of the PBABN copolyester exceeded 2000%, indicating that the addition of a specific ratio of NDC could improve the elongation of the copolyester. Additionally, PBABN-50 material showed a higher Young’s modulus of 79 MPa, a yield strength of 19 MPa, and an elongation at break of 800%, which show its applicability to packaging materials, agricultural films, and fibers. Second, PBABN copolyesters with BN units above 50% were chosen for melt-spinning into fibers and were post-drawn with a ratio of 3.0 to enhance the fiber strength. The maximum stress values of the fibers with 50, 70, 90, and 100 mol% NDC were 1.93 ± 0.08, 2.82 ± 0.06, 3.89 ± 0.05, and 5.93 ± 0.12 g den<sup>–1</sup>, respectively.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"27 - 39"},"PeriodicalIF":2.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994701","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

Energy Absorption Performance of 3D-Printed Windowed Structures Under Quasi-Static Axial Loading Condition 准静态轴向载荷条件下3d打印窗结构的吸能性能

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-09 DOI: 10.1007/s12221-024-00798-9

Mahmoud F. Abd El-Halim, Mahmoud M. Awd Allah, Mohamed A. Abbas, Ahmed A. Mousa, Samy F. Mahmoud, Marwa A. Abd El-baky

{"title":"Energy Absorption Performance of 3D-Printed Windowed Structures Under Quasi-Static Axial Loading Condition","authors":"Mahmoud F. Abd El-Halim, Mahmoud M. Awd Allah, Mohamed A. Abbas, Ahmed A. Mousa, Samy F. Mahmoud, Marwa A. Abd El-baky","doi":"10.1007/s12221-024-00798-9","DOIUrl":"10.1007/s12221-024-00798-9","url":null,"abstract":"<div><p>This study aims to examine the deformation properties and crashworthiness performance of square tubes manufactured from 3D-printed polylactic acid (PLA), which incorporate window features. Four distinct parameters are analyzed, each assessed at three different levels. These parameters include: window end shape (rectangular, round, and triangle), window length (20, 25, and 30 mm), window width (3, 6, and 10 mm), and window number (2, 4, and 6). The structures underwent quasi-static axial compression loading to evaluate their performance under compressive loading. Throughout the testing process, comprehensive data were collected, including the load and energy absorbed during compression and the resulting displacement responses. Additionally, detailed records of the failure histories for each tube were maintained. The assessment of crashworthiness involved the measurement of several critical indicators: the initial peak crash load (<span>({text{F}}_{text{ip}})</span>), the total energy absorbed (U), the mean crash load (<span>({text{F}}_{text{m}})</span>), the specific absorbed energy (SEA), and the crash force efficiency (CFE). To determine the most effective configuration, a multi-attribute decision-making (MADM) approach was utilized. This analysis revealed that the Rd/L25/B6/N2 combination offered the best performance in terms of crashworthiness.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"317 - 335"},"PeriodicalIF":2.2,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994621","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

Development of Glycolysis Catalysts for PET Wastes Including Polyester Textiles 涤纶废渣及纺织品糖酵解催化剂的研究进展

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-07 DOI: 10.1007/s12221-024-00807-x

Yongjoon Kim, Taemin Jang, Hyein Hwang, Yujin Sung, Byung Hyo Kim

{"title":"Development of Glycolysis Catalysts for PET Wastes Including Polyester Textiles","authors":"Yongjoon Kim, Taemin Jang, Hyein Hwang, Yujin Sung, Byung Hyo Kim","doi":"10.1007/s12221-024-00807-x","DOIUrl":"10.1007/s12221-024-00807-x","url":null,"abstract":"<div><p>Polyethylene terephthalate (PET) is a versatile polymer widely used in textiles because of its chemical stability, mechanical strength, and ease of processing. However, the increasing consumption of PET, particularly in the textile industry, has led to significant environmental concerns owing to its resistance to degradation. To address these issues, chemical recycling methods, particularly glycolysis, have attracted attention for depolymerizing PET into valuable monomers for repolymerization. This review focuses on recent advances in catalysts for PET glycolysis, with special emphasis on their application in textile recycling. We categorized the catalysts into homogeneous and heterogeneous types and discussed their effectiveness in reducing the reaction temperatures and times, thereby decreasing energy consumption and operational costs. Although homogeneous catalysts achieved efficient depolymerization at lower temperatures, their post-reaction separation and purification steps remain challenging and costly. In contrast, heterogeneous catalysts offer simpler separation processes but require significant energy input. Research on the application of glycolytic catalysts in fiber recycling was also highlighted, considering the substantial use of PET in the textile industry. Finally, we suggested future research directions for developing cost-effective and sustainable catalysts that are applicable to PET fibers with the aim of enhancing the efficiency and environmental sustainability of PET recycling processes.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"1 - 17"},"PeriodicalIF":2.2,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994511","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

Surface Modification and Characterization of Raw Pineapple Leaf Fibers (PLF) Using Sodium Hydroxide (NaOH) and Graphene Oxide (GO) 氢氧化钠（NaOH）和氧化石墨烯（GO）对菠萝叶纤维（PLF）的表面改性及表征

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-06 DOI: 10.1007/s12221-024-00794-z

Hasan Mahmud, Shilpi Akter, Shafiqul Islam

{"title":"Surface Modification and Characterization of Raw Pineapple Leaf Fibers (PLF) Using Sodium Hydroxide (NaOH) and Graphene Oxide (GO)","authors":"Hasan Mahmud, Shilpi Akter, Shafiqul Islam","doi":"10.1007/s12221-024-00794-z","DOIUrl":"10.1007/s12221-024-00794-z","url":null,"abstract":"<div><p>The present study revealed the effect of alkali (sodium hydroxide, NaOH) and graphene oxide (GO) treatment on the mechanical and thermal characteristics of the raw pineapple leaf fiber (PLF). This was carried out using different concentrations of NaOH (2, 4, 6, 8 and 10% at variable time of 2, 4, 6, 8 and 10 h) and GO (0.5 mg/mL, 0.75 mg/ mL, 1 mg/ mL, 1.25 mg/ mL for 30 min) to determine the optimal treatment conditions. The results showed substantial increase in average tensile strength and thermal stability of the fibers post-treatment. Specifically, a 1 mg/ mL concentration of GO exhibited the highest mean strength, enhancing the fiber's structural integrity. Both raw and treated fiber samples were analysed by different characterization techniques. Results of the FTIR, SEM, DSC and TGA analysis confirmed the removal of impurities and the successful addition of NaOH and GO into the fiber matrix. These findings suggest that chemical modification of PLF can yield high-performance materials. This study presents a novel method to improving the characteristics of natural fibers contributing to development of sustainable as well as the efficient composite materials.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"337 - 351"},"PeriodicalIF":2.2,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994688","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

High-Performance Flexible Piezoelectric Sensor Using Electrospun PVDF-BaTiO3 Nanofibers for Human Motion Monitoring and Recognition 基于静电纺PVDF-BaTiO3纳米纤维的高性能柔性压电传感器用于人体运动监测与识别

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-06 DOI: 10.1007/s12221-024-00806-y

Yafang Li, Rui Yang, BeiNing Ma, Yixia Zhao

{"title":"High-Performance Flexible Piezoelectric Sensor Using Electrospun PVDF-BaTiO3 Nanofibers for Human Motion Monitoring and Recognition","authors":"Yafang Li, Rui Yang, BeiNing Ma, Yixia Zhao","doi":"10.1007/s12221-024-00806-y","DOIUrl":"10.1007/s12221-024-00806-y","url":null,"abstract":"<div><p>Textiles have broad application prospects in the fields of flexible sensors and intelligent wearable devices due to their excellent breathability, softness, and structural elasticity. Piezoelectric sensors have become a hot topic in the field of wearable applications due to their ability to perform long-term sensing and detection. This article enhances the performance of composite materials by adding polydopamine (PDA) to improve the interaction between polymer matrix and nanofillers, and optimizes the composite nanofiber membrane synthesized by electrospinning polyvinylidene fluoride (PVDF) and barium titanate (BTO) nanoparticles. The content of β-phase in the optimized PVDF–BTO nanofiber membrane reached 81.58%. In bending mode, its open-circuit voltage reaches 10.36 V. Under vertical pressure conditions, when the pressure is 2.914N, the voltage of the sensor reaches 13.35 V, and the sensitivity of the nanofiber membrane is 2.918VN<sup>−1</sup>, with a good linear relationship. This flexible piezoelectric sensor demonstrates various potential applications, including facial recognition, speech recognition, motion monitoring, etc. This research provides a simple and convenient way to develop high-performance self-powered wearable electronic products.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"137 - 143"},"PeriodicalIF":2.2,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994687","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

Preparation of PVA–Cotton Fiber–Carbonyl Iron Composite Film for the Removal of Tetracycline from Water 聚乙烯醇-棉纤维-羰基铁复合膜去除水中四环素的研究

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-05 DOI: 10.1007/s12221-024-00790-3

Zeynep Kaplıca, Şerife Şafak, Deniz İzlen Çifçi

{"title":"Preparation of PVA–Cotton Fiber–Carbonyl Iron Composite Film for the Removal of Tetracycline from Water","authors":"Zeynep Kaplıca, Şerife Şafak, Deniz İzlen Çifçi","doi":"10.1007/s12221-024-00790-3","DOIUrl":"10.1007/s12221-024-00790-3","url":null,"abstract":"<div><p>As the use of antibiotics such as tetracyclines has increased, their presence in water has also risen, making their removal from water sources increasingly important. In this study, a film containing polyvinyl alcohol (PVA), cotton fiber, and carbonyl iron (PVA–CF/CI) was prepared, and its use as an adsorbent material for removing tetracycline from water was investigated. The characterization of the PVA–CF/CI film was carried out using SEM–EDAX and FTIR analyses. It was observed that the addition of carbonyl iron to the PVA film significantly increased tetracycline removal. The adsorption kinetic of tetracycline was found to follow pseudo-second-order model, and the adsorption isotherm model was best described by the Langmuir isotherm model. Tetracycline removal reached 90.8% at pH 3 and 1 g film dose. The <i>q</i><sub><i>max</i></sub> obtained with the PVA–CF/CI film containing carbonyl iron was 3.8 times higher than that obtained with the PVA film alone. As a result, while the addition of cotton to the films was not significantly effective, the addition of carbonyl iron was found to significantly enhance tetracycline removal. Additionally, it is possible to produce a more economical and less toxic film polymer by using PVA, cotton, and carbonyl iron.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"65 - 72"},"PeriodicalIF":2.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994390","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

Discovering the Impact of Printing Parameters on the Crashworthiness Performance of 3D-Printed Cellular Structures 发现打印参数对3d打印细胞结构耐撞性能的影响

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-05 DOI: 10.1007/s12221-024-00799-8

Mahmoud M. Awd Allah, Mahmoud F. Abd El-Halim, Mohamed A. Abbas, Ali Saeed Almuflih, Dalia I. Saleh, Marwa A. Abd El-baky

{"title":"Discovering the Impact of Printing Parameters on the Crashworthiness Performance of 3D-Printed Cellular Structures","authors":"Mahmoud M. Awd Allah, Mahmoud F. Abd El-Halim, Mohamed A. Abbas, Ali Saeed Almuflih, Dalia I. Saleh, Marwa A. Abd El-baky","doi":"10.1007/s12221-024-00799-8","DOIUrl":"10.1007/s12221-024-00799-8","url":null,"abstract":"<div><p>Enhancing vehicle crashworthiness is critical for improving passenger safety during collisions. Subsequently, this research seeks to explore both the deformation characteristics and the crashworthiness behaviors of square tubes made from 3D-printed polylactic acid (PLA). For this reasons, three printing parameters are examined, each at four different levels: infill pattern structure (gyroid, honeycomb, Schwarz P, and Schwarz D), infill density (5, 10, 20, and 30%), and layer height (0.15, 0.20, 0.25, and 0.30 mm). The structures were exposed to quasi-static axial compression loading to assess their performance. During the testing of these tubes, data were systematically gathered on crashing load, absorbed energy, and displacement responses. In addition, the failure histories of each tube were accurately documented. The evaluation of crashworthiness involved the measurement of several critical indicators: the initial peak crash load (<span>({F}_{text{ip}})</span>), the total energy absorbed (<i>U</i>), the mean crash load (<span>({F}_{text{m}})</span>), the specific absorbed energy (SEA), and the crash force efficiency (CFE). To identify the optimal configuration, a multi-attribute decision-making (MADM) approach was employed. This analysis revealed that the combination of honeycomb pattern structure, 30% infill density, and a layer height of 0.20 mm (denoted as H30/0.20), which achieved <span>({F}_{text{ip}})</span>, U, <span>({F}_{text{m}})</span>, SEA, and CFE of 26.35 kN, 1440.73 J, 24.01 J/g, 33.54 kN, and 0.911, respectively, offered the best performance in terms of crashworthiness.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"297 - 315"},"PeriodicalIF":2.2,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994391","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

Impact of Compatibilizer on the Electrical and Thermal Characteristics of Areca Fibre-Filled Polypropylene Composites 增容剂对槟榔纤维填充聚丙烯复合材料电学和热学特性的影响

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-04 DOI: 10.1007/s12221-024-00791-2

Madhushri Attihalli Venkatachalaiah, Raju Nama Vasudeva Setty, Jobish Johns, Gajanan V. Honnavar, M. V. Murugendrappa

{"title":"Impact of Compatibilizer on the Electrical and Thermal Characteristics of Areca Fibre-Filled Polypropylene Composites","authors":"Madhushri Attihalli Venkatachalaiah, Raju Nama Vasudeva Setty, Jobish Johns, Gajanan V. Honnavar, M. V. Murugendrappa","doi":"10.1007/s12221-024-00791-2","DOIUrl":"10.1007/s12221-024-00791-2","url":null,"abstract":"<div><p>This study examines the effects of the coupling agent maleic anhydride-grafted polypropylene on the thermal and dielectric properties of areca–polypropylene composites. Test specimens of both uncoupled and coupled composites were prepared using injection molding methods in accordance with ASTM standards, with filler percentages ranging from 20 to 50%. Dielectric characteristics were evaluated across frequencies ranging from 10 Hz to 10 MHz and temperatures from 30 °C to 120 °C at 10 °C intervals. The results showed enhanced dielectric properties in the maleic anhydride-grafted polypropylene composites due to improved fibre dispersion and polarization mechanisms. These composites, with their high dielectric constants, have potential applications in gate dielectrics, actuators, sensors, and more. The morphology and chemical composition were analyzed using scanning electron microscopy and Fourier transform infrared spectroscopy, while thermogravimetric analysis and water diffusion coefficient tests confirmed the successful grafting of the coupling agent onto the fibres.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"283 - 296"},"PeriodicalIF":2.2,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994557","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