Advances in Polymer Technology最新文献

{"title":"Validation of a Novel Self-Consistent Mean-Field Approach and Corresponding Equation to Describe the Concentration Dependence of the Viscosity of Polymer Solutions","authors":"Kanan Aliyev,&nbsp;Dirk W. Schubert","doi":"10.1155/adv/3374428","DOIUrl":"https://doi.org/10.1155/adv/3374428","url":null,"abstract":"<p>Polymer composites and polymer solutions are extensively studied in polymer science. For polymer solutions, the viscosity is a key property relevant for many applications, where the intrinsic viscosity plays an important role. A recent self-consistent theoretical description revealed a novel equation relating solution viscosity to concentration and intrinsic viscosity together with characteristic scaling exponents, depending on the concentration regimes. In particular, for small concentrations, an exponent of 3 is predicted. The focus of this work is to challenge this novel description, in particular, the exponent 3. Therefore, a huge amount of data from the literature is reanalyzed, and a novel equation is fitted to the data. Some older data are only accessible from graphs given in the publications; nevertheless, a digitization tool was applied to access these data for analyzing.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/3374428","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167158","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":"Dynamic Hydrogen Bond-Synergized Conductive Hydrogel With High Tensility and Strong Adhesion: Flexible Sensor Applications From Human Motion Monitoring to Handwriting Recognition","authors":"Jijun Luo,&nbsp;Mengwei Yin,&nbsp;Bin Du,&nbsp;Caiyan Huang,&nbsp;Xupeng Wang,&nbsp;Shisheng Zhou","doi":"10.1155/adv/2969438","DOIUrl":"https://doi.org/10.1155/adv/2969438","url":null,"abstract":"<p>Conductive hydrogels have emerged as a research hotspot in the field of flexible sensing. However, existing materials commonly suffer from insufficient adhesion and limited sensitivity. In this study, a novel polyacrylic acid (PAA)-based composite conductive hydrogel (PHCP) was prepared. Hydroxypropyl methylcellulose, chitosan, and conductive polydopamine-modified polypyrrole composite particles were incorporated into the PAA hydrogel matrix to obtain a stable multidimensional crosslinked network through the synergistic effects of dynamic hydrogen-bonding and electrostatic interactions. The resulting PHCP hydrogel exhibits outstanding performance, with a fracture strain of up to 1205.5%, a tensile strength of 129.7 kPa, and a maximum adhesion strength of 21.6 kPa on substrates such as wood. The sensor demonstrates a gauge factor of 2.63 in the 150%–400% strain range and a sensitivity of 2.16 kPa⁻¹ in the 0–10 kPa pressure range, with both response and recovery times being as short as 0.33 s. Notably, it endures 150 stretching cycles without fracture. In practical applications, the hydrogel can stably monitor joint movements of fingers, wrists, and elbows; accurately distinguish motion signals; and recognize handwritten characters such as “A,” “T,” “C,” and “OK.” Through a synergistic multicomponent design, this study addresses the challenge of simultaneously achieving mechanical stability and high sensitivity in flexible sensors, offering a novel material solution for electronic skin, wearable devices, and human–machine interaction applications.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/2969438","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148083114","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":"Study on the Post-Target Effect of Polyurea-Coated Aluminum Plate Subjected to High-Velocity Impact","authors":"Yi-tao Wang,&nbsp;Teng Zhang,&nbsp;Han-zhe Zhang,&nbsp;Yu-ting He,&nbsp;Li-ying Ma,&nbsp;An-tai Ren","doi":"10.1155/adv/3079847","DOIUrl":"https://doi.org/10.1155/adv/3079847","url":null,"abstract":"<p>High-velocity fragment impact on aircraft thin-walled aluminum alloy structures typically induces severe debris cloud generation, which causes widespread secondary damage to internal equipment and greatly impairs structural survivability and post-damage repairability. Polyurea, as a lightweight hyper-elastomeric protective material, shows great potential in mitigating impact-induced damage, while its inhibitory effect and underlying mechanism on post-target debris cloud effects remain to be fully elucidated. In this study, we designed and fabricated polyurea-coated aluminum plate specimens with different coating configurations (rear-face single-sided coating and double-sided sandwich coating) and conducted systematic ballistic impact tests under 1300–1400 m/s fragment impact using a 14.5 mm ballistic gun system. The optimized test setup enabled direct and quantitative observation of the regulation effect of polyurea coatings on post-target debris cloud evolution. Experimental results show that polyurea coatings can effectively suppress debris cloud diffusion and reduce secondary damage, and the rear-face coated configuration (Type A) exhibits optimal post-target effect mitigation performance: the debris cloud dispersion angle is reduced from 67.5° ± 1.2° (uncoated plate) to 58.2° ± 1.1°, and the maximum distribution radius of secondary impact craters on the witness plate is reduced by 46.7% compared with the uncoated specimen. Furthermore, a finite element model coupled with the adaptive FEM-SPH method was established and validated against experimental data to reveal the physical mechanism of polyurea’s protective effect. The results demonstrate that the excellent hyperelasticity, high fracture strain, and energy absorption capacity of polyurea are the core factors for debris suppression: the polyurea coating achieves debris entrapment through large deformation and contraction, dissipates impact energy via viscoelastic dissipation, and modulates stress wave propagation to reduce aluminum substrate spalling and debris generation. This study clarifies the inhibitory mechanism of polyurea coatings on post-target secondary effects under high-velocity impact and provides valuable experimental and theoretical guidance for the lightweight protective design of aircraft thin-walled structures using polyurea materials.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/3079847","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148076181","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":"RETRACTION: Mechanical Interlocking Approaches to The Prediction of Mechanical and Tribological Behavior of Natural Fiber-Reinforced Polymer Hybrid Nanocomposites or Automotive Applications","authors":"Advances in Polymer Technology","doi":"10.1155/adv/9769457","DOIUrl":"https://doi.org/10.1155/adv/9769457","url":null,"abstract":"<p>RETRACTION: R. Venkatesh, P. C. Santhosh Kumar, A. Senthilkumar, P. Krishna, P. Chandramohan, V. N. Aneesh, A. Malladi, C. B. Priya, and E. Ramaraj, “Mechanical Interlocking Approaches to The Prediction of Mechanical and Tribological Behavior of Natural Fiber-Reinforced Polymer Hybrid Nanocomposites or Automotive Applications,” <i>Advances in Polymer Technology</i> (2023): e6685060, https://doi.org/10.1155/2023/6685060.</p><p>The above article, published online on 2 August 2023 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement the journal Editor-in-Chief, Shaoying Cui; and John Wiley &amp; Sons Ltd. Concerns were raised by a third party that Figures 9a and 9b were reused with proper attribution or permission from two previously published articles [<span>1</span>, <span>2</span>]. Duplication of images without proper attribution or justification is not permitted by either COPE or Wiley. The authors’ justification regarding the image reuse was not adequate. As a result, the figures and conclusions are considered unreliable, therefore the article must be retracted. The authors disagree with the decision to retract.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9769457","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148076177","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":"Scalable Semi-Batch Synthesis of Cellulose Nanocrystal–Polyvinyl Acetate Nanocomposites for Industrial Applications","authors":"Shahab Nasr,&nbsp;Pooria Khalili,&nbsp;Juliana Aristéia de Lima,&nbsp;Fathi Gouda,&nbsp;Gunnar Westman,&nbsp;Mikael Skrifvars","doi":"10.1155/adv/9079580","DOIUrl":"https://doi.org/10.1155/adv/9079580","url":null,"abstract":"<p>This study reports the synthesis of a stable and homogeneous nanocomposite of cellulose nanocrystals (CNCs) and vinyl acetate (VA) monomer via a semi-batch water-based emulsion polymerization technique, targeting a total solid content (TSC) of 50 wt.% to meet industrial requirements such as smaller storage volume, and easier transportation. The semi-batch approach enabled a consistent distribution of the reactants and improved scalability for industrial applications. CNCs were successfully incorporated into a polyvinyl acetate (PVAc) latex formulation at concentrations of up to 3.22 wt.% relative to VA monomer. Fourier-transform infrared spectroscopy indicated the consumption of hydroxyl groups on the CNC surfaces. The nanocomposites containing 1.93% CNC demonstrated the most promising performance, reducing the water sensitivity of pristine PVAc and lowering both the water vapor transmission rate (WVTR) and permeation. Nevertheless, the increased CNC content induced an uneven surface topography and a broader polymer particle size and distribution, as observed by polarized light and scanning electron microscopy. Mechanical testing revealed a general reduction in the tensile properties relative to neat PVAc, although the 1.93 wt. % CNC sample exhibited the least decline. The resulting nanocomposites exhibited an extended shelf life and colloidal stability, indicating their potential for industrial applications.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9079580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148075360","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":"Analysis of Morphology Changes in Thermoplastic Polyurethane During Storage and Processing Using FTIR Spectroscopy","authors":"Michael Redel,&nbsp;Christian Regelmann,&nbsp;Bastian Wölfel,&nbsp;Dirk W. Schubert","doi":"10.1155/adv/3883260","DOIUrl":"https://doi.org/10.1155/adv/3883260","url":null,"abstract":"<p>This study investigates the influence of storage and processing (injection moulding, meltblown) on the morphological structure of commercially available thermoplastic poly(ether-urethane)s using Fourier Transform Infrared (FTIR) spectroscopy. Many of the physical properties of thermoplastic polyurethane (TPU) materials and products are caused by the block-copolymer chain, which consists of soft and hard segments. According to the literature, the degree of separation of these segments and their content can be evaluated by FTIR spectroscopy measurements. Granules of TPU grades with different compositions were stored for up to 900 days to assess morphological changes. In addition, peaks of ether and urethane groups, as well as free- and hydrogen-bonded carbonyl (C = O) peaks were analysed for a total amount of six injection moulded materials with different ratios of hard to soft segment. The results of the C─O and C = O peaks were correlated with the segment content and the degree of phase separation, validating the measurement principle. In the second part, nonwovens made of Elastollan 1180 A were characterised using the validated FTIR method. The distinct influence of the processing route and processing parameters is a novel finding and is analysed to evaluate the potential analytical capabilities for TPU nonwovens.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/3883260","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148073788","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":"Evaluation of Washing Fastness on Chitosan-Treated Cotton Fabrics","authors":"Marta Piccioni,&nbsp;Roberta Peila,&nbsp;Alessio Varesano,&nbsp;Claudia Vineis","doi":"10.1155/adv/6594774","DOIUrl":"https://doi.org/10.1155/adv/6594774","url":null,"abstract":"<p>Wearing an antimicrobial garment is a priority to guarantee the safety of clothes in hospitals and elsewhere. The antibacterial treatment must be durable and stable overtime. This work studied the washing fastness of cotton fabrics functionalized with chitosan. Chitosan deposition was carried out using acetic acid to favor chitosan solubilization. Ten washing cycles with ionic and nonionic detergents were executed to evaluate the durability of the antimicrobial activity. The different properties were monitored after the 1st, the 3rd, and the 10th cycles using the untreated cotton sample as a reference. The physicochemical characterization of the washed fabrics was analyzed by microscopy, spectroscopy and contact angle. Additionally, the color changes in the CIELab Δ<i>E</i> of the samples were evaluated relative to plain cotton fabric. Furthermore, the mechanical properties were assessed, as well. The characterization highlighted the durability of the chitosan treatment on cotton fabrics, even after repeated laundering. The antibacterial tests demonstrated that the antibacterial properties were maintained above ~98% of bacterial reduction after washing with ionic and nonionic detergents. The samples washed with the nonionic solution at 50°C with 25 stainless steel balls showed the best antibacterial activity and tensile strength up to 10 washing cycles.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/6594774","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070479","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":"Production and Characterization of Bioplastic From Wheat Bran Starch Reinforced With Wheat Straw Fiber by Using Response Surface Methodology","authors":"Asfaw Adeko Tigro,&nbsp;Kafi Mohamed Hamed,&nbsp;Ermias Girma Aklilu,&nbsp;Alfiya Demoze Mame","doi":"10.1155/adv/9476097","DOIUrl":"https://doi.org/10.1155/adv/9476097","url":null,"abstract":"<p>Recently, extracting bioplastics from agricultural waste and lignocellulosic biomass residues has attracted significant attention due to their low cost and availability in abundance. This study investigates the production of bioplastic films from wheat bran starch reinforced with wheat straw fiber. Proximate analyses of wheat bran and wheat straw were conducted, and the physicochemical properties of the extracted starch and fiber were evaluated using standard analytical techniques. The effects of oven-drying temperature (35°C–55°C), glycerol concentration (30%–40% w/v), and fiber concentration (5%–15% w/w, based on starch) on the tensile strength (TS), elongation at break (EA), and water absorption (WA) of the bioplastic films were examined using response surface methodology (RSM) with a central composite design (CCD). Optimal conditions were identified at a 55°C oven-drying temperature, 31.97% glycerol concentration, and 14.40% fiber concentration, yielding TS, EA, and WA values of 20.528 MPa, 8.1%, and 19.44%, respectively, with a desirability of 97.1%. The developed statistical model was validated and showed no significant difference between predicted and experimental results. Additional physicochemical properties of the optimized bioplastic film, including density (1.54 g/mL), moisture content (16.66%), water solubility (35%), transparency (5.6%), and thickness (0.47 mm), were also evaluated. Structural and thermal analyses were performed using TGA, XRD, and FTIR. The optimized bioplastic exhibited a degradation rate of 86.7% within 16 days, indicating its strong potential as an eco-friendly biodegradable material.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9476097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070485","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 Review on the Synthesis and Applications of Selected Thermoset–Matrix Composites in Green Energy","authors":"Jaclyn McLaughlin,&nbsp;Reza Farasat,&nbsp;Derrick Dean","doi":"10.1155/adv/8639495","DOIUrl":"https://doi.org/10.1155/adv/8639495","url":null,"abstract":"<p>The adoption of sustainable forms of energy is necessary to aid in reducing the global dependence on fossil fuels. As demands for various forms of renewable energy continue to increase, not only should the quantity of devices increase, but the quality of these resources should be considered as well. Materials play a crucial role in the construction and operation efficiency of renewable energy resources. Much of the literature that is currently available on this topic focuses on specialized thermoplastic or elastomeric components in renewable energy devices. While these studies are valuable, thermosetting polymers are largely left out of this discussion. Although thermoplastics may also be considered as the matrix material for polymer matrix composites (PMCs), the elevated processing temperatures, high melt viscosity levels, and lower stiffness of these materials is less attractive for the structural applications discussed in this work. Currently, reinforced thermose–matrix composites are used as wind turbine blades, hydroelectric turbines, solar panel base boards, and coatings or encapsulants on solar panel devices. An evaluation of these crucial engineering materials is essential to improve the performance of renewable energy devices to lower the worldwide reliance on fossil fuels. Throughout this report, the synthesis of thermosets and their corresponding monomers for application in renewable energy has been discussed. For this purpose, the study has been conducted in two major sections. The dividing line is based on the main polymerization methods: step growth and chain growth. For each category, a brief background has been provided. Then, some selective thermoset polymers with their synthetic methods and novel applications in renewable energy field have been discussed.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/8639495","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070965","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":"Characterization of the Stability and Reuse Potential of Aged Epoxy Materials for Sustainable Management of Insulation Waste","authors":"Jaroslav Hornak,&nbsp;Ondrej Michal,&nbsp;Pavel Rous,&nbsp;Jan Frank,&nbsp;Pavel Trnka","doi":"10.1155/adv/2475634","DOIUrl":"https://doi.org/10.1155/adv/2475634","url":null,"abstract":"<p>This study examines the feasibility of mechanical recycling of epoxy resins exhibiting different levels of degradation (new, thermally aged, and UV-exposed) and their subsequent incorporation into a virgin cold-curing epoxy matrix based on bisphenol A. Simulated aging was induced through controlled exposure to UV radiation and thermal exposure for a duration of 500 h. The recycled material, processed by an optimized cryogenic milling method into a fine powder (≈13 μm) and was dispersed as an inertial filler (1 wt.%) in the same epoxy base. Electrical characterization of the resulting composites demonstrated that volume resistivity values occur within one order of magnitude (10¹⁴–10¹⁵ Ω·m) across all material compositions, while polarization indexes consistently exceeded the minimum recommended limits (≥2), indicating preserved insulating properties. Dielectric losses and relative permittivity show shift in the relaxation peak associated with the glass transition temperature, which was effectively mitigated through an additional postcuring process. Regarding tensile tests, a pronounced decline in properties was observed only in the unmodified resin following thermal aging, whereas the composites containing recycled filler maintained comparable performance levels in ultimate tensile strength (&gt;30 MPa) and maximal elongation (&gt;3%). The study also provides insight into the possible real-world application of the findings in the field of sustainable energy.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/2475634","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148070960","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}