Fibers and Polymers最新文献_第9页

Facile Synthesis of a Novel, Low Fabric Damage and Cost-Effective Bleach Catalyst for Cotton Fabric: 1,4-Dimethylpiperazine Manganese Complex 一种新型、低织物损伤、低成本的棉织物漂白催化剂：1,4-二甲基哌嗪锰配合物的简单合成

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-15 DOI: 10.1007/s12221-024-00815-x

Guanqin Hua, Jiahao Xu, Zhiguo Zhang, Yange Suo

{"title":"Facile Synthesis of a Novel, Low Fabric Damage and Cost-Effective Bleach Catalyst for Cotton Fabric: 1,4-Dimethylpiperazine Manganese Complex","authors":"Guanqin Hua, Jiahao Xu, Zhiguo Zhang, Yange Suo","doi":"10.1007/s12221-024-00815-x","DOIUrl":"10.1007/s12221-024-00815-x","url":null,"abstract":"<div><p>The application of hydrogen peroxide bleaching catalysts in cotton fabric bleaching can effectively reduce the temperature and time of the bleaching process, thereby reducing energy consumption. Conventional hydrogen peroxide bleaching catalysts such as manganese complex (Mn–Me<sub>3</sub>TACN) with the ligand of 1,4,7-trimethyl-1,4,7-triazacyclononane introduced by Unilever can achieve satisfactory whiteness at low bleaching temperatures. However, Mn–Me<sub>3</sub>TACN can result in severe chemical damage to fibers and the ligand 1,4,7-trimethyl-1,4,7-triazacyclononane is very expensive, which greatly inhibit the commercial application of the conventional bleaching catalysts. In this work, a novel and cost-effective manganese complex (Mn-DMPP) with the ligand of 1,4-dimethylpiperazine for cotton fabric bleaching is reported. The physicochemical properties of synthesized complex are characterized and the bleaching performance of Mn-DMPP is evaluated in terms of H<sub>2</sub>O<sub>2</sub> decomposition and the whiteness index, tensile strength retention, and capillary effect of the bleached fabric. After bleaching at 70 °C for 45 min, the whiteness of the fabric bleached with Mn-DMPP is 76.55, and the tensile strength retention is 87.77%. Under the same testing conditions, the whiteness of the fabric bleached with Mn–Me<sub>3</sub>TACN is 76.79, and the tensile strength retention is 82.3%. Compared with conventional catalyst Mn–Me<sub>3</sub>TACN, the cotton fabric bleached with the Mn-DMPP at low temperature shows higher tensile strength retention at similar whiteness levels. Therefore, Mn-DMPP is an effective catalyst for the low-temperature bleaching of cotton fabric with hydrogen peroxide. It has competitive advantages in reducing bleaching production costs and protecting fibers from severe chemical damage.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"211 - 221"},"PeriodicalIF":2.2,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994407","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 Structural Parameters on the Auxetic Behavior of Weft-Knitted Fabrics Based on Foldable Structures 基于可折叠结构的纬编织物结构参数对补强性能的影响

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-14 DOI: 10.1007/s12221-024-00773-4

Shiva Aghazadeh, Hooshang Nosraty, Azita Asayesh, Mohammad Rabiee

{"title":"Effect of Structural Parameters on the Auxetic Behavior of Weft-Knitted Fabrics Based on Foldable Structures","authors":"Shiva Aghazadeh, Hooshang Nosraty, Azita Asayesh, Mohammad Rabiee","doi":"10.1007/s12221-024-00773-4","DOIUrl":"10.1007/s12221-024-00773-4","url":null,"abstract":"<div><p>Auxetic materials refer to materials with a negative Poisson’s ratio (NPR). They expand when stretched and become slimmer when compressed. Due to the special features of auxetic materials, they are used in a wide range of industrial applications including medical, fashion and clothing, composite, sports, and protective applications. This study aims to design and develop auxetic weft-knitted fabrics based on a horizontal zigzag structure with different structural patterns and investigate the influence of various parameters on their auxetic behavior. Auxetic fabrics with three patterns and three loop lengths were knitted using polyester yarn with different counts. Subsequently, the auxetic behavior of each fabric sample was examined. The results denote that the negative Poisson’s ratio decreases with increasing strain. The effect of the fabric knit pattern with different angles on the auxetic behavior is different in the course and wale directions. Fabrics with higher loop lengths have a higher initial negative Poisson’s ratio (NPR), while fabrics with smaller loop lengths exhibit auxetic behavior in a wider strain range. Furthermore, optimizing the fabric structure and dimensional parameters such as yarn count and loop length can enhance auxetic behavior. This research provides a useful study for optimizing auxetic fabric properties by changing structural parameters and developing innovative applications for materials with special mechanical properties.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"391 - 401"},"PeriodicalIF":2.2,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994372","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

Accelerated Weathering with Humidity Effects on Physical, Surface Interfacial and Tribology Behavior of Kenaf-Pineapple Laminated Biocomposite Under Different Loading Constraint 不同载荷约束下加速风化对红麻-菠萝层状生物复合材料物理、表面界面和摩擦学行为的影响

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-14 DOI: 10.1007/s12221-024-00804-0

Santosh Kumar, Sumit Bhowmik

{"title":"Accelerated Weathering with Humidity Effects on Physical, Surface Interfacial and Tribology Behavior of Kenaf-Pineapple Laminated Biocomposite Under Different Loading Constraint","authors":"Santosh Kumar, Sumit Bhowmik","doi":"10.1007/s12221-024-00804-0","DOIUrl":"10.1007/s12221-024-00804-0","url":null,"abstract":"<p>The development of eco-friendly materials from nature has grown much consideration from scientists due to the reduction of environmental impacts and petroleum products. The naturally derived laminated fibers reinforced bio-epoxy biocomposites have emerged as a greater alternative to synthetic fiber composites for load-bearing structural applications. The current study aimed to investigate the physical, surface interfacial, wettability, thermal degradation, and tribological characteristics of kenaf-pineapple laminates bio-epoxy biocomposites under accelerated weathering and variable humidity conditions. The results scrutinized that insertion of kenaf laminates with pineapple fibers and bio-epoxy polymer enhanced the interfacial interaction and revealed lower porosity and higher thermo-mechanical properties with greater heat dissipation and thermal stability. The accelerated weathering adversely affected the surface properties of biocomposites like hardness, thickness swelling, roughness, and hydrophilicity. The tribology behavior of laminated biocomposites has been analyzed employing a pin-on-disc tribometer at varied loading (20 N, 40 N, and 60 N) with variable sliding distances (1000 m, 2000 m, and 3000 m) under the influence of different humidity (RH30%, RH50%, and RH70%) conditions. The results observed that volume loss, friction force, coefficient of friction, and specific wear rate of biocomposites increased under accelerated weathering and higher humidity. The morphology at the worn surfaces showed interfacial debonding, cavitation, and scattering due to weathering and higher humidity. Finally, the outcomes suggested that the developed biocomposites sustained greater load with higher specific interfacial strength and had greater potential to replace synthetic materials for indoor/outdoor load-bearing applications.</p>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"173 - 195"},"PeriodicalIF":2.2,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994403","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

Imparting Multi-Functional Properties to Polyester Fabric Using g-C₃N₄ or ZnO/g-C₃N₄ g-C₃N₄或ZnO/g-C₃N₄赋予聚酯织物多功能性能

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-12 DOI: 10.1007/s12221-024-00814-y

Fateme Garahi, Majid Montazer, Maryam Yousefzadeh, Madineh Rastgoo, Mahnaz Mahmoudirad

{"title":"Imparting Multi-Functional Properties to Polyester Fabric Using g-C₃N₄ or ZnO/g-C₃N₄","authors":"Fateme Garahi, Majid Montazer, Maryam Yousefzadeh, Madineh Rastgoo, Mahnaz Mahmoudirad","doi":"10.1007/s12221-024-00814-y","DOIUrl":"10.1007/s12221-024-00814-y","url":null,"abstract":"<div><p>Multifunctional polyester fabric was developed using graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) and ZnO semiconductors and its self-cleaning properties were studied by varying the weight ratio of semiconductors and dye concentration. The fabrics were treated using two distinct methods pad-dry-cure and exhaustion. Fabric self-cleaning activity was assessed by monitoring the degradation of methylene blue stains under natural sunlight, quantified through changes in ΔRGB values. The coated samples were also evaluated for air permeability, wettability, flammability, bending length, and antibacterial properties. The study found that polyester fabrics treated with g-C₃N₄ via the pad-dry-cure method exhibited significantly higher self-cleaning activity (ΔRGB = 120.3) than those treated by the exhaustion method (ΔRGB = 68.8). Furthermore, fabrics coated with a ZnO/g-C₃N₄ hybrid demonstrated superior self-cleaning performance to those treated with either g-C₃N₄ or ZnO alone. Antibacterial results indicated the effectiveness of treated samples through the pad-dry-cure method for 100% antibacterial activity. However, samples treated with exhaustion showed higher air permeability, water absorption, and flexibility.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"157 - 171"},"PeriodicalIF":2.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994749","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 Functional Non-woven Fabrics Made from Regenerated Cellulose Fiber-Supported ZIF-67 for Formaldehyde Removal 再生纤维素纤维负载ZIF-67功能无纺布的制备及其除甲醛性能

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-12 DOI: 10.1007/s12221-024-00817-9

Fan Liu, Haozhe Tang, Junjie Yang, Xianhua Zhang, Hui Zhang, Yanchao Zhao, Mengyu Yuan, Jinsheng Qiao, Hongyang Sang, Yidan Chen, Ziqi Nie, Weili Shao

{"title":"Preparation of Functional Non-woven Fabrics Made from Regenerated Cellulose Fiber-Supported ZIF-67 for Formaldehyde Removal","authors":"Fan Liu, Haozhe Tang, Junjie Yang, Xianhua Zhang, Hui Zhang, Yanchao Zhao, Mengyu Yuan, Jinsheng Qiao, Hongyang Sang, Yidan Chen, Ziqi Nie, Weili Shao","doi":"10.1007/s12221-024-00817-9","DOIUrl":"10.1007/s12221-024-00817-9","url":null,"abstract":"<div><p>To prepare a new formaldehyde adsorption material with excellent comprehensive performance, high practical value, and easy industrial production, a regenerated cellulose fiber (RCF) non-woven fabric-supported ZIF-67 (ZIF-67@RCF) was prepared by in situ growth of ZIF-67 on the surface of fibers. The microscopic morphology, mechanical properties, specific surface area, and formaldehyde adsorption properties were analyzed, and the results showed that the ZIF-67 can rapidly and extensively grow on the surface of RCF under normal temperature and pressure with uniform distribution. The fiber surface can be completely covered within 25 min with a loading capacity of nearly 2 wt%. The important thing is this method does not damage the mechanical properties of RCF non-woven fabric; on the contrary, it improves the mechanical properties to some extent. In an enclosed testing space, formaldehyde was able to be removed quickly in the presence of ZIF-67@RCF and the removal rate could reach 98% in 10 min. We believe that this material could be used to prepare new air purification filter for formaldehyde removal.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"383 - 390"},"PeriodicalIF":2.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994748","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

CPF-DETR: An End-to-End DETR Model for Detecting Complex Patterned Fabric Defects CPF-DETR：一种检测复杂图案织物缺陷的端到端DETR模型

IF 2.2 4区工程技术

Fibers and Polymers Pub Date : 2024-12-10 DOI: 10.1007/s12221-024-00809-9

Hao Fang, Song Lin, Jiawang Hu, Jiarui Chen, Zhiyong He

{"title":"CPF-DETR: An End-to-End DETR Model for Detecting Complex Patterned Fabric Defects","authors":"Hao Fang, Song Lin, Jiawang Hu, Jiarui Chen, Zhiyong He","doi":"10.1007/s12221-024-00809-9","DOIUrl":"10.1007/s12221-024-00809-9","url":null,"abstract":"<div><p>Fabric defect detection is a prevalent issue in the textile industry. For fabrics with monotone coloration and simple patterns, the existing detection algorithms have been able to meet the detection requirements of industrial production. However, there is still a lack of effective detectors to detect fabrics defects with complex patterns and variable colors. This paper proposed an improved RT-DETR model called CPF-DETR, which improves the detection effect by a noise suppression module (NSM) and a novel encoder using dynamic snake convolution (DSC-Encoder). Firstly, RT-DETR as a complete end-to-end real-time detection model was used as our detection framework to avoid the effect of the lack of a priori knowledge of the anchor in industry detection. Secondly, we designed a noise suppression module to filter out noise from complex backgrounds. Furthermore, we introduced the dynamic snake convolution (DSC) into the encoder and designed a hybrid convolution module (HCM) which helps the encoder to enhancing its ability to acquire elongated structure detail information in complex pattern. Finally, we compared our CPF-DETR with many state-of-the-art models on a Complex Patterned Fabric Dataset (CPF) collected from the Aliyun Tianchi fabric defect dataset. The experimental results demonstrate that the accuracy of our detector is superior to existing models. Our detector achieved 69.1% AP outperforming the RT-DETR by 2.3% and yolv8m by 10.6%. The inference latency of 10.46ms is also able to meet the real-time detection requirements.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 1","pages":"369 - 382"},"PeriodicalIF":2.2,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994582","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

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