Advances in Polymer Technology最新文献

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Green Biocomposites From Agro-Waste With Central Layer Architecture: A Performance Comparison Against Glass Fiber Composite 具有中心层结构的绿色农业废弃物生物复合材料:与玻璃纤维复合材料的性能比较
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-04-13 DOI: 10.1155/adv/3572010
Md. Hasibul Hasan, Sourav Biswas, Md. Abdus Sabur, G. M. Shafiur Rahman, Muhammad Abdullah Al Mamun
{"title":"Green Biocomposites From Agro-Waste With Central Layer Architecture: A Performance Comparison Against Glass Fiber Composite","authors":"Md. Hasibul Hasan,&nbsp;Sourav Biswas,&nbsp;Md. Abdus Sabur,&nbsp;G. M. Shafiur Rahman,&nbsp;Muhammad Abdullah Al Mamun","doi":"10.1155/adv/3572010","DOIUrl":"https://doi.org/10.1155/adv/3572010","url":null,"abstract":"<p>This study develops and evaluates green biocomposites using agro-waste fibers, maize husk fiber composite (MFC), luffa fiber composite (LFC), and betelnut husk fiber composite (BFC) as core reinforcements in a central-layer unsaturated polyester resin (UPR) matrix, comparing their performance with a 5% glass fiber composite (5% GFC) and neat UPR. Fibers underwent alkali treatment to enhance interfacial adhesion beforehand lay-up fabrication. The composites were characterized via structural, mechanical, physical, thermal, and morphological analysis. Among the natural fiber systems, tensile (20.68 MPa) and compressive (87.6 MPa) strengths were highest for the BFC. LFC showed superior flexural strength (48.83 MPa) and microhardness (14.2 HV). MFC exhibited the highest impact strength (0.34 kJ m<sup>−2</sup>) and ductility (7.64% elongation). Natural fiber composites showed lower strength than glass fiber in all tests except hardness, and lower tensile and flexural strength than neat UPR. All agro-waste composites exhibited greater water uptake (up to 1.524%) and biodegradability (0.00072% mass loss) than neat UPR, but the central layer structure seemed protecting the natural reinforcements from the environmental effects. Thermal analysis revealed improved char yield in natural fiber systems, and confirmed that fiber addition (0.310–0.361 W m<sup>−1</sup> K<sup>−1</sup>) had minimal effect on heat transfer, indicating matrix-dominated thermal behavior across all composites. Scanning electron microscopy (SEM) indicated weaker interfacial bonding compared to GFC. The work demonstrates the potential of central-layer agro-waste biocomposites as sustainable structural materials for automotive interiors, panels, and lightweight construction, with competitive functional properties and improved environmental performance. Future research should optimize fiber treatment, loading, and hybridization to enhance interfacial bonding and durability for broader engineering applications.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/3572010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683751","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}
引用次数: 0
Starve Feeding in Screw Extruders: A Review 螺杆挤出机的饥饿进料:综述
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-03-26 DOI: 10.1155/adv/9495468
Mohammad Pourhosseinian, Bahram Haddadi
{"title":"Starve Feeding in Screw Extruders: A Review","authors":"Mohammad Pourhosseinian,&nbsp;Bahram Haddadi","doi":"10.1155/adv/9495468","DOIUrl":"https://doi.org/10.1155/adv/9495468","url":null,"abstract":"<p>Starve-fed polymer extrusion has become an important strategy for improving process control, energy efficiency, and product quality, but it also introduces partially filled flow regimes that are not captured by classical flood-fed concepts. This review provides a critical assessment of starve-fed operation in single-screw and corotating twin-screw extruders, structured by extruder type and process region. Key experimental techniques, including screw pull-out/quench analysis, window-based and optical visualization, residence time distribution (RTD) measurements, mixing assessments, ultrasonic sensing, pressure profiling, and specific mechanical energy (SME) monitoring, are reviewed with emphasis on how starve feeding modifies melting mechanisms, fill level, RTD, and energy consumption. The experimental evidence base is particularly strong for starve-fed single-screw extrusion, where pull-out and RTD studies clearly demonstrate a transition from contiguous solid-bed melting to mixed conductive/dispersed melting; corresponding data for starve-fed twin-screw extruders remain comparatively scarce and are often limited to local visualization and RTD in selected elements. Modeling approaches are then summarized, from early analytical and empirical models to modern global feed-to-die descriptions utilized to partially filled operation. Their capabilities and limitations are discussed separately for single- and twin-screw machines, highlighting where starve-fed conditions can be treated by adapted flood-fed models and where new formulations are required. Finally, advanced numerical techniques, computational fluid dynamics (CFD), discrete element method (DEM), and smoothed particle hydrodynamics (SPH), are reviewed with respect to extruder type and phase: DEM for granular solids conveying in the feed region, CFD for free-surface melt flow in partially filled single screws and selected twin-screw sections, and SPH for resolving starved and intermeshing flows with explicit free surfaces. The achievements and current limitations of these methods are identified, along with future research needs in improved modeling of partially filled regions, tighter coupling between DEM and CFD/SPH, real-time process monitoring, and scale-up strategies for industrial starve-fed extrusion.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9495468","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615112","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}
引用次数: 0
Enhanced Thermal Stability and Tailored Morphology of Poly(Aniline-Co-Pyrrole)/Montmorillonite-H+ Nanocomposites via In Situ Oxidative Polymerization 通过原位氧化聚合提高聚苯胺-共吡咯/蒙脱石- h +纳米复合材料的热稳定性和定制形貌
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-03-25 DOI: 10.1155/adv/9918887
Ouiddad Saiah, Faiza Zahaf, Aicha Hachemaoui, Ahmed Yahiaoui, Haroun Houicha
{"title":"Enhanced Thermal Stability and Tailored Morphology of Poly(Aniline-Co-Pyrrole)/Montmorillonite-H+ Nanocomposites via In Situ Oxidative Polymerization","authors":"Ouiddad Saiah,&nbsp;Faiza Zahaf,&nbsp;Aicha Hachemaoui,&nbsp;Ahmed Yahiaoui,&nbsp;Haroun Houicha","doi":"10.1155/adv/9918887","DOIUrl":"https://doi.org/10.1155/adv/9918887","url":null,"abstract":"<p>This work reports on the synthesis and characterization of nanostructured composites based on proton-exchanged montmorillonite (MMT-H<sup>+</sup>) and conducting polymers, namely, polyaniline (PANI), polypyrrole (PPy), and poly(aniline-co-pyrrole) (P(ANI-co-Py)), prepared via in situ oxidative polymerization using ammonium persulfate (APS) as the oxidant. Structural investigations by X-ray diffraction (XRD), X-ray fluorescence (XRF) spectrometry, Fourier-transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM) confirmed the successful intercalation of the polymers within the MMT-H<sup>+</sup> interlayers. The copolymer P(ANI-co-Py) exhibited an intermediate basal spacing (<i>d</i> (001) = 24.86 Å), larger than that of PANI (22.87 Å) and PPy (22.46 Å). SEM analysis revealed pronounced morphological differences: PANI generated porous and granular structures, PPy formed dense globular aggregates, whereas the copolymer displayed heterogeneous porosity, leading to increased surface area and enhanced interfacial interactions. Optoelectronic and electrochemical analyses (UV–Vis and cyclic voltammetry [CV]) highlighted clear synergistic effects in the P(ANI-co-Py)/MMT-H<sup>+</sup> nanocomposite. The electrochemical tunability originates from the combined redox activity of aniline (ANI) and pyrrole (Py) units, resulting in merged and broadened redox responses intermediate between those of the corresponding homopolymers, while UV–Vis spectra exhibit broadened absorption bands indicative of extended conjugation. Thermal characterization using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) demonstrated superior thermal stability of the copolymer nanocomposite, marked by an extended degradation range (200–600°C), a 40% increase in residual mass at 800°C, and a delayed degradation onset compared to the homopolymer systems. These improvements were attributed to nanoconfinement and cross-linking effects. These results identify P(ANI-co-Py)/MMT-H<sup>+</sup> as a thermally stable and electrochemically tunable nanocomposite with optimized morphology, suitable for high-temperature electronic applications and advanced functional coatings.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9918887","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147614984","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}
引用次数: 0
Cellulose Nanomaterials as Reinforcing Agents for Bio-Based Leather-Like Polymeric Composites: A Review 纤维素纳米材料在生物基类革聚合物复合材料中的增强作用研究进展
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-03-20 DOI: 10.1155/adv/5260669
Soon Mo Choi, Sun Mi Zo, Ankur Sood, Do Hyun Lee, Sung Soo Han
{"title":"Cellulose Nanomaterials as Reinforcing Agents for Bio-Based Leather-Like Polymeric Composites: A Review","authors":"Soon Mo Choi,&nbsp;Sun Mi Zo,&nbsp;Ankur Sood,&nbsp;Do Hyun Lee,&nbsp;Sung Soo Han","doi":"10.1155/adv/5260669","DOIUrl":"https://doi.org/10.1155/adv/5260669","url":null,"abstract":"<p>Cellulose-based nanomaterials, particularly cellulose nanofibers (CNF) and cellulose nanocrystals (CNC), have been widely explored as reinforcing agents in polymer composites owing to their high aspect ratio, crystallinity, and abundant surface hydroxyl groups. However, their application in bio-based leather-like polymeric materials, which require a unique balance of mechanical robustness, durability, and moisture tolerance, remains insufficiently systematized. This review critically examines the translatability of CNF and CNC reinforcement strategies to sustainable leather substitutes derived from bacterial cellulose (BC), plant fibers, and other bio-resources, with a focus on addressing key performance limitations such as low mechanical strength, dimensional instability, and poor durability. Particular emphasis is placed on structure–property relationships governed by dispersion behavior, polymer–filler interfacial interactions, and surface modification strategies in moisture-sensitive and multiphase systems. Unlike existing reviews that primarily address nanocellulose reinforcement in general polymer composites, this work adopts an application-driven perspective tailored to leather-like materials. In addition to discussing reinforcement mechanisms, the review considers scalability, multifunctionality, and economic feasibility, while explicitly acknowledging current limitations, including the scarcity of direct studies on leather-like systems and long-term durability data. By defining both opportunities and constraints, this review proposes a practical material design framework for the development of next-generation, high-performance, and environmentally responsible leather alternatives.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/5260669","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567388","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}
引用次数: 0
Effect of Surface Modified Halloysite Nanotubes (HNTs) on Mechanical and Thermal Properties of Polylactic Acid/HNTs Nanocomposites 表面改性高岭土纳米管对聚乳酸/高岭土纳米复合材料力学和热性能的影响
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-02-25 DOI: 10.1155/adv/2326865
Si-hoon Jang, No-Hyung Park, Su-il Park
{"title":"Effect of Surface Modified Halloysite Nanotubes (HNTs) on Mechanical and Thermal Properties of Polylactic Acid/HNTs Nanocomposites","authors":"Si-hoon Jang,&nbsp;No-Hyung Park,&nbsp;Su-il Park","doi":"10.1155/adv/2326865","DOIUrl":"https://doi.org/10.1155/adv/2326865","url":null,"abstract":"<p>In this study, polylactic acid (PLA) nanocomposites reinforced with halloysite nanotubes (HNTs) were fabricated via melt extrusion followed by compression molding. Surface modification of HNTs was conducted using polyethyleneimine (PEI) and PN40 to improve interfacial interaction and dispersion of HNTs within the PLA matrix. The effects of HNT surface modification on the structural, thermal, and mechanical properties of the PLA matrix was systematically evaluated. Zeta potential and Fourier-transform infrared (FTIR) analyses confirmed the successful functionalization of HNTs, with PEI treatment exhibiting a more pronounced surface charge modification compared to virgin and PN40-modified HNTs. SEM and atomic force microscopy (AFM) images demonstrated that the dispersion and interfacial adhesion of HNTs in the PLA matrix were significantly enhanced in the nanocomposites containing PEI–modified HNTs. Thermal analyses revealed that the incorporation of HNTs led to a slight increase in the glass transition and melting temperatures, as well as enhanced thermal degradation resistance. Moreover, nanocomposites containing 3 wt% PEI–modified HNTs exhibited the highest thermal stability, with the temperature at 5 and 10 wt% weight loss, and the temperature of maximum degradation rate observed in the derivative thermogravimetric (DTG) curve measured at 349.9, 359.5, and 396.9°C, respectively. These values represent increases of 9.8, 10.5, and 14.4°C compared to pure PLA. Tensile testing demonstrated that the nanocomposites containing 1–3 wt% PEI–modified HNTs achieved the highest tensile strength, showing an increase of over 7% relative to pure PLA. Overall, the results demonstrate that surface modification of HNTs, particularly with PEI, effectively improves dispersion, matrix–filler adhesion, and the thermomechanical performance of nanocomposites.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/2326865","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568701","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}
引用次数: 0
Nonisothermal Crystallization Kinetic of LLDPE/Diatomite/Graphene Nanocomposites Using an Isoconversional Approach 等转换方法研究LLDPE/硅藻土/石墨烯纳米复合材料的非等温结晶动力学
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-02-23 DOI: 10.1155/adv/9946272
Qian Guo, Liu Chen, Yanchun Li, Aifeng Jiang, Ramón Artiaga
{"title":"Nonisothermal Crystallization Kinetic of LLDPE/Diatomite/Graphene Nanocomposites Using an Isoconversional Approach","authors":"Qian Guo,&nbsp;Liu Chen,&nbsp;Yanchun Li,&nbsp;Aifeng Jiang,&nbsp;Ramón Artiaga","doi":"10.1155/adv/9946272","DOIUrl":"10.1155/adv/9946272","url":null,"abstract":"<p>Linear low-density polyethylene (LLDPE), a semicrystalline polymer featuring short-chain branched architectures, displays crystallization behavior that is highly sensitive to molecular topology and processing conditions. In this study, the nonisothermal crystallization kinetics of LLDPE composites filled with diatomite (DE), graphene (G), and their hybrid (DE/G) were investigated via differential scanning calorimetry (DSC). The Mo method and Vyazovkin’s isoconversional approach were employed to determine the crystallization kinetic parameters. The results indicate that G exerts the most significant nucleation effect on LLDPE crystallization, reducing the crystallization activation energy by 30 kJ/mol, and <i>t</i><sub>1/2</sub> decreases from 0.78 to 0.48 min, and the crystallization rate increases by approximately a factor of 1.63 at a cooling rate of 15 K/min. These variations are primarily attributed to the influence of G on the crystallization rate and melting point of LLDPE.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/9946272","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147381897","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}
引用次数: 0
Structural and Compositional Characteristics of Technical Lignin Derived From Non-Wood Biomass: Bagasse and Kash 从非木材生物质:甘蔗渣和木薯中提取的技术木质素的结构和组成特征
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-02-13 DOI: 10.1155/adv/2203670
Md Nur Alam Likhon, M. Mostafizur Rahman, Bo Jiang, Yangcan Jin, M. Sarwar Jahan
{"title":"Structural and Compositional Characteristics of Technical Lignin Derived From Non-Wood Biomass: Bagasse and Kash","authors":"Md Nur Alam Likhon,&nbsp;M. Mostafizur Rahman,&nbsp;Bo Jiang,&nbsp;Yangcan Jin,&nbsp;M. Sarwar Jahan","doi":"10.1155/adv/2203670","DOIUrl":"https://doi.org/10.1155/adv/2203670","url":null,"abstract":"<p>Lignin is one of the available biopolymers on earth, so it can play a vital role in moving toward a bio-based society. In this paper, lignin derived from non-wood sources like bagasse and kash was characterized in order to facilitate its valorization. Lignin obtained from the soda liquor was considered as technical lignin, and it was compared with the acidic dioxane-extracted lignin from the corresponding non-wood. The isolated lignins were characterized using elemental analysis, methoxyl content determination, molecular weight distribution, FT-IR spectroscopy, and advanced NMR techniques (quantitative <sup>31</sup>P and 2D HSQC). The methoxyl groups per C<sub>9</sub> unit in dioxane lignin from bagasse were 1.20, which was slightly higher than that of kash dioxane lignin (1.16/C<sub>9</sub>). Technical lignins showed comparable or slightly lower methoxyl content per C<sub>9</sub> unit. The weight-average molecular weight (Mw) of technical lignin was lower than that of corresponding dioxane lignin. The phenolic hydroxyl groups in technical lignin were higher than those of corresponding dioxane lignin, as observed from <sup>31</sup>P NMR analysis. Furthermore, 2D HSQC NMR analysis showed that both lignins were primarily composed of syringyl (S) and guaiacyl (G) units, with the S-unit type being dominant. These findings provide valuable information on the structural and chemical properties of non-wood lignins, supporting their potential utilization in bio-based applications.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/2203670","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217016","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}
引用次数: 0
Study and Analysis of the Effects of Increasing Carbon Fiber Layers on the Physical and Creep Characterization Used for Lower Limb Prosthetic Socket Laminations 增加碳纤维层数对下肢假肢窝层复合材料物理和蠕变特性影响的研究与分析
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-02-09 DOI: 10.1155/adv/2174071
Noor F. Khdr, Ethar Yahya Salih, Asaad A. H. Alzubaidi
{"title":"Study and Analysis of the Effects of Increasing Carbon Fiber Layers on the Physical and Creep Characterization Used for Lower Limb Prosthetic Socket Laminations","authors":"Noor F. Khdr,&nbsp;Ethar Yahya Salih,&nbsp;Asaad A. H. Alzubaidi","doi":"10.1155/adv/2174071","DOIUrl":"https://doi.org/10.1155/adv/2174071","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Prosthetic sockets for lower limb amputees are subject to hazardous loading conditions—especially in high ambient temperatures that exacerbate creep behavior, leading to material deformation, increased stress, and reduced comfort and performance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>This study investigates whether integrating carbon fiber layers into conventional Perlon composite laminations can mitigate temperature-induced creep deformation in prosthetic sockets.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methodology</h3>\u0000 \u0000 <p>Baseline specimens consisted of six-layer Perlon laminations (3p + 0c + 3p). Creep tests were conducted under controlled loads at three temperature levels (room temperature, 40, and 60°C) over predetermined time intervals to evaluate deformation, stress, and strain responses. Hybrid laminations were prepared by inserting one (3p + 1c + 3p), two (3p + 2c + 3p), and three (3p + 3c + 3p) carbon fiber layers centrally within the Perlon layers; identical creep tests were performed on each configuration.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Compared to room temperature, the baseline (3p + 0c + 3p) specimens exhibited creep deflection increases of 208.8% at 40°C and 272.2% at 60°C. Incorporating one carbon fiber layer (3p + 1c + 3p) reduced this to 102.3% and 250%, respectively. For two carbon layers (3p + 2c + 3p), the increases were 8.75 % at 40°C and 212.8% at 60°C. With three carbon fiber layers (3p + 3c + 3p), creep deformation rose by only 6.2% at 40°C and 110.9% at 60°C. Similar trends were observed in creep strain across the configurations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Adding carbon fiber layers to Perlon-based laminations significantly reduces temperature-induced creep deformation in prosthetic sockets. The most effective configuration in this study featured three centrally embedded carbon fiber layers, which offered the greatest mitigation—particularly at moderate temperature increases.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Future Directions</h3>\u0000 \u0000 <p>Further studies should evaluate long-term durability under cyclic loading and real-world use conditions, explore optimal layer orientation and thickness, and assess biomechanical implications and manufacturability in clinical settings.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/2174071","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146211370","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}
引用次数: 0
Recycled Plastics Utilization in Packaging Converting Processes: A Semi-Systematic Review 再生塑料在包装加工中的应用:半系统综述
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-01-29 DOI: 10.1155/adv/1728680
Fereshte Mohammadi Khoshoue, Timo Kärki, Ville Leminen
{"title":"Recycled Plastics Utilization in Packaging Converting Processes: A Semi-Systematic Review","authors":"Fereshte Mohammadi Khoshoue,&nbsp;Timo Kärki,&nbsp;Ville Leminen","doi":"10.1155/adv/1728680","DOIUrl":"https://doi.org/10.1155/adv/1728680","url":null,"abstract":"<p>In recent years, increased plastic usage has led to huge amounts of blended plastic waste moving into the environment without proper control. Packaging plastics make up one-half of all waste and plastics disposal poses a significant environmental issue. Consequently, the need for improved recycling of waste plastics and their conversion into new products to decrease the need for additional virgin plastics has increased overtime. Given the growing demand for sustainable packaging solutions, this study examines various converting techniques, including extrusion and injection molding, to assess their effectiveness in the production of food and nonfood packaging from recycled plastics. The study underscores the role of advances in recycling technology and considers how challenges like variability in quality and process compatibility can be addressed. It is noted that enhanced sorting and cleaning methods and chemical recycling play a critical role in the quality and performance improving of recycled plastics. The article emphasizes the potential of recycled plastics for creating high-quality packaging while reducing environmental impact. Future research efforts should focus on enhancing recycling techniques and expanding applications of recycled plastics to promote increased sustainability within the packaging industry.</p>","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":"2026 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/adv/1728680","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146197033","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}
引用次数: 0
Progress and Challenges of Using Itaconic Acid for Sustainable, Competitive and Advanced Polymers in Additive Manufacturing 在增材制造中使用衣康酸制造可持续、有竞争力和先进聚合物的进展和挑战
IF 2.5 4区 工程技术
Advances in Polymer Technology Pub Date : 2026-01-29 DOI: 10.1155/adv/7303252
James A. Dicks
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