Fibers and Polymers最新文献

{"title":"The Study of Low-Velocity Impact Behavior of Glass Fiber-Reinforced Polymer Sandwich Structures with PVC Foam Core: Experimental Approach","authors":"Edwin Cheruiyot Kosgey,&nbsp;Krishnan Kanny,&nbsp;Festus Maina Mwangi","doi":"10.1007/s12221-025-01166-x","DOIUrl":"10.1007/s12221-025-01166-x","url":null,"abstract":"<div><p>The sandwich structure comprises of a light core and two thin laminates bonded to both sides of the core. A major problem with sandwich structures is delamination and debonding near the core/face sheet interface, particularly under impact loading, which can lead to an unexpected loss of structural integrity and catastrophic failure. Thus, it is important to investigate the impact behavior of sandwich structures. This study investigated the low-velocity impact (LVI) of polyvinyl chloride (PVC) core and glass fiber-reinforced polymer (GFRP) face sheet sandwich structures for marine applications. PVC foams of three different thicknesses were used as cores. GFRP face sheets of two different thicknesses were laid up in angle-ply [45/-45], cross-ply [0/90], and quasi-isotropic [0/45/-45/90] orientations. Several low-velocity impact tests were conducted at three different impact energies to characterize the energy levels. From the obtained data, the curves of force versus time, force versus displacement, and energy versus time were plotted. The results showed that the peak force increased with increasing energy impact. Furthermore, an increase in the core thickness increased the peak force, implying a high-energy absorption capability. The quasi-isotropic orientation exhibited better performance than the angle-ply and cross-ply orientations did. In conclusion, changing the thickness of the face sheet reduced the damaged area and perforation threshold of the sandwich structure.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5111 - 5126"},"PeriodicalIF":2.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12221-025-01166-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Strategy for Enhancing the Alkali Deweighting Efficiency of Polyester Fabrics Based on Non-Aqueous Media Systems","authors":"Hongjuan Zhang,&nbsp;Wenxin Tao,&nbsp;Bingyu Dai,&nbsp;Dongjun Lv,&nbsp;Qun Yang,&nbsp;Shuaitong Liang,&nbsp;Kaili Jin,&nbsp;Haotong Li,&nbsp;Jiping Wang","doi":"10.1007/s12221-025-01165-y","DOIUrl":"10.1007/s12221-025-01165-y","url":null,"abstract":"<div><p>In this study, a non-aqueous media system was employed to systematically investigate the impacts of alkali concentration, moisture content, and recycling times on the deweighting rate, dyeing properties, and physical characteristics of polyester. The research incorporated a comprehensive suite of analytical techniques. These included whiteness test, gross efficiency analysis, gas chromatography-mass spectrometry (GC–MS), thermogravimetric analysis (TG), and K/S value. Additionally, the color fastness to washing and rubbing was evaluated. And the hydrophilic properties, microstructure features, thermal stability behavior, and dyeing properties of the treated fabrics were thoroughly examined. The findings revealed that only 7 g/L NaOH was needed in the non-aqueous media system to achieve a 25% of deweighting rate of polyester fabric, which is higher than that of 36 g/L in the traditional water bath system. The amount of alkali agent greatly decreased. Moreover, when the moisture content fluctuated within the range of 100–130%, the deweighting efficiency only varied by ± 6.5%, indicating remarkable process stability. After five recycling cycles, the media maintained a deweighting rate of 23–25%, highlighting its sustainable potential. Regarding fabric performance, polyester treated in the non-aqueous outperformed traditional counterparts in whiteness, hydrophilicity, thermal stability, and dyeing depth. This system reduced alkali consumption while enhancing both deweighting rate and dyeing performance. Crucially, effective deweighting capability persisted after five recycling cycles. These results clearly demonstrate that the non-aqueous media system exhibits superior efficiency and environmental friendliness compared to traditional methods. This innovative research can effectively reduce the usage of chemicals, lower environmental pollution, and is conducive to promoting the sustainable development of the printing and dyeing industry.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5187 - 5195"},"PeriodicalIF":2.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352329","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}

{"title":"Bleaching Processes of Pineapple Fibers Assisted with Sustainable Technologies: Microwave, Ultrasound and Ozonation","authors":"Ece Kalayci,&nbsp;Ozan Avinc,&nbsp;Huseyin Aksel Eren","doi":"10.1007/s12221-025-01155-0","DOIUrl":"10.1007/s12221-025-01155-0","url":null,"abstract":"<div><p>In this study, various bleaching processes, including conventional hydrogen peroxide bleaching, microwave-assisted hydrogen peroxide bleaching, ozone bleaching, and ultrasound-assisted ozone (Ozone/UH) bleaching, were applied to pineapple fiber woven fabrics to assess their effectiveness in enhancing fabric whiteness and reducing environmental impact. The effects of these treatments on fabric properties, including colorimetric values, tear strength, stiffness, wrinkle recovery, thickness, water absorption, chemical oxygen demand (COD) of wastewater, and fiber structural changes (via FTIR-ATR), were systematically analyzed. The optimal conditions for conventional hydrogen peroxide bleaching were determined as 10 g/l hydrogen peroxide at 95 °C for 60 min. Ozone bleaching for 120 min resulted in comparable whiteness values to conventional bleaching while reducing COD, indicating a more environmentally sustainable alternative. Microwave-assisted hydrogen peroxide bleaching did not significantly enhance whiteness compared to conventional methods. Meanwhile, ultrasound-assisted ozone bleaching achieved high whiteness levels in a shorter time (20 min), but resulted in greater fabric strength loss. FTIR-ATR analysis confirmed chemical modifications in the fiber structure following bleaching, particularly the reduction of lignin and hemicellulose content. The highest water absorption capacity was observed in Ozone/UH-treated fabrics, while the lowest COD values were recorded for ultrasound-assisted ozone bleaching, highlighting its eco-friendly potential. Overall, the results suggest that ozone bleaching, particularly when combined with ultrasound, offers a promising alternative to conventional peroxide bleaching by reducing chemical consumption and environmental impact. However, the balance between bleaching efficiency and fabric integrity must be carefully considered when selecting the optimal treatment for industrial applications.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5173 - 5186"},"PeriodicalIF":2.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352388","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}

{"title":"Influence of Pre-designed Crack Parameters on Crashworthiness Performance of PETG-CF Square Tubes Under Quasi-static Compression","authors":"Mahmoud M. Awd Allah,&nbsp;Mahmoud F. Abd El-Halim,&nbsp;Marwa A. Abd El-baky","doi":"10.1007/s12221-025-01167-w","DOIUrl":"10.1007/s12221-025-01167-w","url":null,"abstract":"<div><p>This study examines the effect of engineered triggering mechanisms, implemented as cracks, on the crashworthiness performance of square tubes fabricated from carbon fiber-reinforced polyethylene terephthalate glycol (PETG-CF). The specimens were produced using 3D printing technology and then subjected to quasi-static axial compression tests to evaluate their energy absorption and structural performance. The research specifically examines the effects of three critical crack parameters: crack angle (<i>θ</i>), crack length (<i>L</i>), and crack thickness (<i>T</i>), each varied across three distinct levels. Throughout the experiments, detailed failure mechanisms were recorded, and data on crush load and energy absorption as a functions of displacement were accurately collected. To optimize the experimental design and minimize the number of test runs, an L9 orthogonal array based on the Taguchi method was employed. The study aims to find the optimal parameters that result in superior crush performance, characterized by a reduction in initial peak crush force (<span>({P}_{text{ip}})</span>) and enhancement in key indicators such as total energy absorption (<i>U</i>), mean crush force (<span>({P}_{text{m}})</span>), specific energy absorption (SEA), and crushing force efficiency (CFE). The resulting optimum specimens were then compared against an intact square tube without any cracks to assess the improvements in crashworthiness performance. The experimental results revealed that, compared to the intact specimen, the optimum design exhibited a 20.38% reduction in <span>({P}_{text{ip}})</span>, while <i>U</i>, <span>({P}_{text{m}})</span>, SEA, and CFE increased by 10.40, 22.57, 24.48, and 67.92%, respectively, demonstrating the effectiveness of crack-based design in enhancing energy dissipation and improving structural efficiency.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5093 - 5110"},"PeriodicalIF":2.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352389","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}

{"title":"Characterization of 3D-Printed Polylactic Acid (PLA)–Hemp Microfiber-Reinforced Biomedical Implant Composite Material","authors":"K. Manikandan,&nbsp;S. Sathish,&nbsp;Gokul Chandrasekaran,&nbsp;P. Ravikumar,&nbsp;M. Bavithra","doi":"10.1007/s12221-025-01159-w","DOIUrl":"10.1007/s12221-025-01159-w","url":null,"abstract":"<div><p>Biodegradable polymer composites have emerged as promising candidates for biomedical implantation due to their biocompatibility, tunable mechanical properties, and environmental sustainability. In this study, PLA-based composites reinforced with hemp microfibers were developed to evaluate their suitability for such applications. The research investigated the mechanical, wear, and swelling characteristics of PLA composites with varying hemp microfiber concentrations. Among the tested samples, the DH2 composite with 3 vol.% hemp microfibers displayed superior mechanical performance, achieving a tensile strength of 135.5 MPa, flexural strength of 162.0 MPa, and impact strength of 4.85 J. These improvements are attributed to enhanced stress transfer and strong interfacial adhesion between the matrix and the well-dispersed microfibers. Meanwhile, the DH3 composite, reinforced with 5 vol.% hemp microfibers, exhibited the highest hardness (98 Shore-D) and excellent wear resistance, reflected by a specific wear rate of 0.008 mm³/Nm and a coefficient of friction (COF) of 0.32. Furthermore, DH3 showed the lowest swelling tendency and in vitro mass loss against degradation, indicating superior dimensional stability and reduced moisture uptake critical traits for materials intended for implantation. In addition, the scanning electron microscope offers significant details about the morphological and microstructural analysis.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5081 - 5091"},"PeriodicalIF":2.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352602","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}

{"title":"Management of Agricultural Waste in Green Multi-functional Finishing of Wool Yarns Using Ultrasonic Environment","authors":"Somayeh Baseri","doi":"10.1007/s12221-025-01158-x","DOIUrl":"10.1007/s12221-025-01158-x","url":null,"abstract":"<div><p>The rapid expansion of the agriculture industry has led to the production of large quantities of biological wastes; however, innovating their potential applications still needs to be investigated. In this research, walnut hard waste has been valorized as a tannin-rich finishing material for the multi-functional finishing of wool yarns under the ultrasonic environment. The potential alternative of rice straw for the metal mordant was performed and it was used as a bio-mordant to improve the multi-functional properties of wool yarns toward the walnut hard waste without the risk of pollution. An investigation has been made to evaluate the main finishing process variables, optimize the process, develop a predictive model based on Box–Behnken Design, and evaluate the physio-chemical and multi-functional properties of the bio-yarns produced. The results of assayable tannin and flavonoid contents confirmed the worthwhile selection of the walnut hard waste as a tannin-rich finishing material. Statistical analysis of finishing conditions revealed that all the linear terms, the interaction terms of walnut concentration-finishing bath pH, rice concentration-finishing bath pH, time-finishing bath pH, time-rice concentration, the quadratic effects of finishing bath pH, walnut concentration, and rice concentration had significant influences on the response variable. The bio-yarns produced under optimized dyeing conditions showed excellent fastness qualities and bio-functional behaviors due to the formation of strong complexes between walnut molecules and peptide chains. The findings of this research address the urgent need for the bio-functional modification of textile materials via a facile impregnation strategy, providing a new starting point for the worthwhile application of agricultural waste in advanced bio-textiles.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5159 - 5172"},"PeriodicalIF":2.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352491","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}

{"title":"Influence of Stacking Sequence on the Mechanical Properties of GO-CF/AF Hybrid Reinforced Composites Prepared by Vacuum Infiltration Hot-Pressing System","authors":"Lisha Pang,&nbsp;Yuqin Ma,&nbsp;Xuding Song,&nbsp;Weishi Peng,&nbsp;Deyang Zhang,&nbsp;Rongrong Feng,&nbsp;Huihui Wang,&nbsp;Xinran Liu,&nbsp;Yupeng Han","doi":"10.1007/s12221-025-01160-3","DOIUrl":"10.1007/s12221-025-01160-3","url":null,"abstract":"<div><p>In this paper, the effects of stacking sequence on the mechanical properties of graphene oxide–carbon fiber/aramid fiber (GO-CF/AF) hybrid reinforced composites prepared using a vacuum infiltration hot-pressing system (VIHPS) were investigated. The tensile, flexural, and shape memory properties of composites with different stacking sequences were experimentally tested. It was found that the tensile, flexural, and shape memory properties were significantly influenced by stacking sequence, though the degrees of influence varied. This was primarily attributed to the different properties between carbon fiber and aramid fiber, as well as the mechanical property disparities between hybrid interfaces and single-material interfaces. When the stacking sequence was CACACA, the tensile strength reached a Maximum of 1358.21 MPa. Meanwhile, the shape fixation rate reached a Maximum of 98%, the shape recovery rate was 92%, and the shape recovery force reached a Maximum of 11.43 N. When the stacking sequence was CCACAA, the flexural strength and flexural modulus reached Maximum values of 704.47 MPa and 47.24 GPa, respectively, with the shape fixation rate and shape recovery rate being 98% and 95%, and the shape recovery force being 11.11 N. The tensile modulus was less affected by the stacking sequence. The findings can provide a reference for the design of hybrid fiber-reinforced composites in diverse application scenarios.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5065 - 5080"},"PeriodicalIF":2.3,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352598","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}

{"title":"Mechanical Properties of Composite Knitted Artificial Ligaments with Reinforcement Structure","authors":"Qinwen Huang,&nbsp;Tong Yang,&nbsp;Jiaqi Huang,&nbsp;Pibo Ma","doi":"10.1007/s12221-025-01147-0","DOIUrl":"10.1007/s12221-025-01147-0","url":null,"abstract":"<div><p>The fabrication of mechanically robust, elastic, and fatigue-resistant artificial ligaments continues to present a considerable challenge in anterior cruciate ligament (ACL) reconstruction. Knitted ligaments have seen extensive application in ligament repair, owing to their loose architecture, remarkable extensibility, and flexibility. However, the knitted coil configuration is prone to deformation and demonstrates relatively low mechanical strength, making it potentially inadequate to endure excessive tensile forces. To address this issue, this study proposes a composite knitted structure that integrates ultra-high molecular weight polyethylene (UHMWPE) yarns into a four-flat weft-lined knitted design. This approach aims to enhance the tensile strength, stiffness, and fatigue resistance of the ligaments while maintaining a sufficient level of porosity. The experimental results indicate that the mechanical properties of the ligaments improve as the number of reinforcing yarns increases. Notably, the specimen labelled KAL-6 displays the highest fracture strength and stiffness, along with the lowest rate of stress attenuation. These findings highlight the crucial role of reinforcing structures in optimizing the mechanical performance of knitted artificial ligaments, positioning them as promising alternatives for ACL reconstruction.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5055 - 5063"},"PeriodicalIF":2.3,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352599","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}

{"title":"Sustainable Production Applications on Textile-to-Textile Recycling of Pre-consumer Textile Waste in Light of Emerging Trends","authors":"İlhan Özen,&nbsp;Muhammed İbrahim Bahtiyari,&nbsp;Oğuz Demiryürek,&nbsp;Kamyar Shirvanimoghaddam,&nbsp;Seeram Ramakrishna,&nbsp;Minoo Naebe","doi":"10.1007/s12221-025-01154-1","DOIUrl":"10.1007/s12221-025-01154-1","url":null,"abstract":"<div><p>The textile industry has long held a significant standing among various industrial sectors. As production and consumption continue to escalate, waste management has emerged as a critical environmental challenge. Within the framework of a sustainable circular economy, efforts are increasingly focused on textile-to-textile recycling of fibrous waste, including both pre-consumer and post-consumer categories. To achieve sustainability and add value to the recycling process, the concept of a regenerative textile industry is gaining importance. While post-consumer textile waste recycling has received attention primarily in consumer-centric regions, the majority of textile manufacturing is concentrated in countries that generate substantial pre-consumer waste. Recognizing the planet as a singular ecosystem, there is a growing acknowledgment that collaborative efforts involving all stakeholders are crucial for effective textile recycling management. Recent initiatives aim to develop sustainable solutions for managing pre-consumer textile waste, involving partnerships between consumer and producer regions, underlining the emergence of this new and holistic concept in textile waste management. With the aim of contributing to efforts in this field, this review article highlights recent advancements in sustainable solutions for pre-consumer textile waste and projects the social dimensions of sustainability within this context.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"4691 - 4714"},"PeriodicalIF":2.3,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352601","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}

{"title":"Mechanical Performance and Comfort Evaluation of a Saree Fabric Made by Mixing Two Different Weft Yarn Counts","authors":"Solayman Miah,&nbsp;Iftakhar Rahman Fahim,&nbsp;Ismail Hossen,&nbsp;Gulam Rabbani,&nbsp;Md. Shablu Khan,&nbsp;Mowshumi Roy,&nbsp; Nurunnabi,&nbsp;Fuad Ahmed","doi":"10.1007/s12221-025-01153-2","DOIUrl":"10.1007/s12221-025-01153-2","url":null,"abstract":"<div><p>Comfort issue for a saree is of great importance, as it is a popular and prestigious outfit and normally worn close to the body for extended periods. This paper presents a study of comfort properties along with mechanical performance of a saree fabric by mixing two different counts in weft yarn. The standard fabric (SF) was woven with a 74 Ne warp yarn and a 60 Ne weft yarn. Variations were then incorporated into the pattern based on the principle of weft mixing by introducing 40 Ne yarn in the weft direction. The weft-mixed variant fabric SF(2:2) improves the tactile comfort, measured by the fabric touch tester (FTT) indices while the other patterns show a reduction. Although a drop in mechanical strength was observed in the weft-mixed variant fabrics compared to the standard fabric, the use of coarser count weft yarns could offer a potential reduction in the overall production costs. This suggests a viable trade-off among comfort, strength, and cost in the design of woven fabrics.</p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 11","pages":"5151 - 5158"},"PeriodicalIF":2.3,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145352600","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}