Iranian Polymer Journal最新文献

{"title":"Exploring the microstructure and mechanical behavior of 3D-printed POE-CB composites at different carbon black loadings","authors":"Jian Zhang,&nbsp;Yanping Nie","doi":"10.1007/s13726-025-01600-0","DOIUrl":"10.1007/s13726-025-01600-0","url":null,"abstract":"<div>\u0000 \u0000 <p>Pure polyolefin elastomer (POE), a popular material in 3D printing, suffers from limited mechanical strength and durability, which restricts its use in high-performance applications. This work addresses this drawback by exploring how adding different quantities of carbon black (CB) enhancer alters the durability and fine internal architecture of POE. Formulations with CB proportions of 2.5, 5, and 7.5% by mass were crafted through a thermal fusion process and then molded into forms using a granule-driven extrusion technique, ensuring consistent 3D-printing quality. Mechanical testing revealed that samples with 5 wt% CB exhibited a significant improvement in tensile strength (UTS = 8.02 MPa), Young’s modulus (E = 8.13 MPa), and elongation (ε = 2959.51%) compared to both pure POE and samples with other CB concentrations. Compression tests on samples printed with a honeycomb filling pattern showed a maximum compression strength of 10.28 MPa for 5 wt% CB composite, highlighting superior mechanical performance under pressure. Scanning electron microscope (SEM) analysis indicated optimal dispersion and distribution of CB within the POE matrix for 5 wt% CB samples, with fewer voids and better interlayer adhesion. In contrast, 7.5 wt% CB samples displayed a pile-up phenomenon of CB particles, leading to decreased mechanical properties. Overall, this study provided valuable insights into the optimal CB concentration for enhancing the mechanical properties of 3D-printed polyolefin composites, with potential applications in advanced manufacturing and engineering.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical abstract\u0000 <div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 7","pages":"1481 - 1490"},"PeriodicalIF":2.9,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of ammonium polyphosphate on Borassus flabellifer trunk particle reinforced polymer composites for automotive heat shield","authors":"Parkunam Nagaraj,&nbsp;Gopal Poornanandan,&nbsp;Senthilkumar Thangarajan Sivasankaran","doi":"10.1007/s13726-025-01601-z","DOIUrl":"10.1007/s13726-025-01601-z","url":null,"abstract":"<div><p>In recent years, aluminium and copper alloys have been extensively utilized in automotive heat shield applications. However, to address limitations related to weight and thermal performance, composite materials-particularly carbon and natural fiber-reinforced composites are emerging as effective alternatives, offering superior thermal resistance and lightweight properties for advanced automotive heat shielding solutions. Using the liquid mold method, several epoxy/hardener compositions with flame retardant (FR) additives were utilized to create natural fiber composites. Ammonium polyphosphate (APP) and <i>Borassus flabellifer</i> fibre (BFF) were examined for their influence on the mechanical, thermal, and flammability characteristics of epoxy composites. The functional group of the composite was revealed by Fourier transform infrared (FTIR) spectroscopy. According to data from the UL-94 vertical burning test and limiting oxygen index (LOI) test, adding APP can improve the flame retardancy of BFF composites. The 20% APP added BFF composite has a LOI value of 29 and vertical flammability grade V-1. The thermal stability of epoxy is enhanced by adding APP and BFF at high temperatures. The APP-filled BFF composites’ tensile strength was reduced due to poor dispersion of APP in epoxy. The 20% BFF composite absorbs less water (3.04%) than other compositions due to improved fibre-matrix bonding interfacial contact. The surface morphology of the composites was examined by a Field Emission Scanning Electron Microscope (FE-SEM). The overall result confirms BFF composite with APP is one of the better thermal stability materials for automotive heat shield applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 7","pages":"1491 - 1501"},"PeriodicalIF":2.9,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Upgrading of electrocentrifugal spinning to generate highly aligned PVDF nanofibers over a wide area, modeling and optimization by response surface methodology","authors":"Vahid Mohammadi,&nbsp;Mehrdad Khamforoush,&nbsp;Farzad Dabirian,&nbsp;Seyed Omid Rastegar","doi":"10.1007/s13726-025-01590-z","DOIUrl":"10.1007/s13726-025-01590-z","url":null,"abstract":"<div>\u0000 \u0000 <p>The “conventional electrocentrifugal spinning” (ECS) is an efficient technique for the fabrication of regular nanofibers. By developing a novel form of multi-nozzle spinneret, the production rate of well-aligned polyvinylidene fluoride nanofibers is dramatically boosted in this work. Also, an up-down adjustable mechanism is created and implemented for a cylindrical collector to collect the nanofibers across a wide area. Response surface methodology (RSM) using central composite design (CCD) was employed to evaluate the degree of nanofiber alignment (DNA). Four influential parameters, including voltage, polymer concentration, collector diameter, and spinneret rotational speed were chosen for investigation to determine their impact on DNA. The optimal values for independent variables were determined to be 18.25 kV, 17.31% (by wt), 35.21 cm, and 1977.87 rpm, respectively, resulting in a DNA value of 74.78%. To reduce the production time of nanofibers, the number of nozzles was increased from 1 to 4, 8, and 12. The corresponding DNA values for 4, 8, and 12 nozzles at the optimum conditions were 77.68%, 77.59%, and 79.08%, respectively. The up-down mechanism was then activated to generate nanofibers across a wide area at a constant up-down speed of 12 to 42 mm/min. At a speed of 35 mm/min, a well-aligned nanofiber mat with an alignment degree of 81.96% was produced that was at least nine times wider than the mat generated by conventional ECS.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical abstract\u0000 <div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 7","pages":"1455 - 1467"},"PeriodicalIF":2.9,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual pH and redox-responsive tri-block configuration of PEG/PCL micelle for targeted doxorubicin delivery in cancer therapy","authors":"Sheida Moradi,&nbsp;Mohammad Reza Zamanloo,&nbsp;Zainab Ahmadian,&nbsp;Fahimeh Kazeminava","doi":"10.1007/s13726-025-01591-y","DOIUrl":"10.1007/s13726-025-01591-y","url":null,"abstract":"<div>\u0000 \u0000 <p>Therapeutic methods for cancer treatment require the efficient delivery and precise release of drugs, triggered by tumor microenvironment conditions. In this field, amphiphilic polymer micelles (APMs) have garnered significant interest due to their ability to achieve controlled drug release, respond to specific stimuli, enhance therapeutic efficacy, and reduce drug-associated toxicity. In this paper, a polymeric micelle was designed for drug delivery, featuring a detachable polyethylene glycol shell and a polycaprolactone core which is introduced as PCL-SS-PEG-SS-PCL. Locating pH-sensitive amine groups and redox-sensitive disulfide linkages between the hydrophilic and hydrophobic segments of the polymer provided the drug-delivering features to the polymer micelle. A suitable critical micelle concentration (CMC), a high doxorubicin (DOX) loading efficiency and capacity were obtained. The PCL-SS-PEG-SS-PCL micelle also exhibited a high stability in phosphate-buffered saline (PBS) solution for 48 has well as a dual pH and redox responsiveness within 48 hat pH 5.5 and under dithiothreitol, mirroring the conditions of cancer cells. Furthermore, in vitro assays conducted on the MCF7 cell line revealed that APMs loaded with DOX have greater anticancer effects compared to free DOX. Staining experiments utilizing 4′,6-diamidino-2-phenylindole (DAPI) confirmed the polymer’s efficacy in precise cancer drug delivery.</p>\u0000 <span>AbstractSection</span>\u0000 Graphical abstract\u0000 <div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div>\u0000 \u0000 </div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 7","pages":"1443 - 1453"},"PeriodicalIF":2.9,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oak testa extract-loaded chitosan/gelatin/polyvinyl alcohol casting films for potential applications in wound dressings","authors":"Farshid Pourzare,&nbsp;Habib Abbasi,&nbsp;Atefeh Pourjahed,&nbsp;Mojtaba Shafiee","doi":"10.1007/s13726-025-01595-8","DOIUrl":"10.1007/s13726-025-01595-8","url":null,"abstract":"<div><h3>Objective</h3><p>Composite films incorporating chitosan, gelatin, polyvinyl alcohol (PVA), and <i>Oak Testa</i> extract (OTE) were developed and evaluated for their suitability as wound dressings.</p><h3>Materials and methods</h3><p>The films were fabricated by blending solutions of chitosan, gelatin, and PVA, followed by the addition of glycerol and glutaraldehyde. OTE, dissolved in deionized water, was then integrated into the mixture, which was subsequently molded and dried at 37 °C. The films were evaluated for swelling capacity, water vapor transmission rate, mechanical properties, antimicrobial activity, and microstructural features.</p><h3>Results</h3><p>The addition of OTE significantly enhanced the swelling capacity of the films, ranging from 561.28% to 1390.85% (<i>p</i> &lt; 0.05), while reducing the water vapor transmission rate and improving flexibility. Statistical analysis indicated that variations in the weight percentages of PVA and OTE, along with the PVA/chitosan ratio, did not significantly impact tensile strength (<i>p</i> &gt; 0.05). Antibacterial assays revealed that films containing 10 wt% OTE exhibited strong activity against both Gram-positive and Gram-negative bacteria. Scanning electron microscopy demonstrated that the 10 wt% OTE films formed a homogeneous phase with a rough microstructure free of cracks, providing an environment conducive to cell attachment and potentially supporting wound healing.</p><h3>Conclusion</h3><p>The study underscores the promise of composite films incorporating <i>Oak Testa</i> extract, chitosan, gelatin, and PVA for wound dressing applications. These films exhibit advantageous properties, including high swelling capacity, reduced water vapor transmission rate, enhanced flexibility, antimicrobial efficacy, and a microstructure favorable for tissue regeneration.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 7","pages":"1429 - 1442"},"PeriodicalIF":2.9,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomass-derived activated carbon/chitosan hydrogel composites for adsorption of organic and inorganic pollutants","authors":"Akshay Verma,&nbsp;Gaurav Sharma,&nbsp;Tongtong Wang,&nbsp;Amit Kumar,&nbsp;Pooja Dhiman,&nbsp;Jinhu Zhi","doi":"10.1007/s13726-025-01592-x","DOIUrl":"10.1007/s13726-025-01592-x","url":null,"abstract":"<div><p>Water pollution caused by both organic and inorganic contaminants has emerged as a critical global concern, promoting the need for effective and environmentally sustainable treatment solutions. Among the promising approaches, biomass derived activated carbon and chitosan hydrogels have attracted significant attention due to their renewable origins, strong pollutant adsorption abilities, and adaptable properties. Biomass-derived activated carbon is particularly valued for its exceptionally large surface area and high affinity towards wide range of contaminants making it a cost effective and sustainable choice for water purification. Meanwhile, chitosan hydrogels stand out for their natural biocompatibility and can be easily modified to suit specific treatment needs. This review highlights recent advances in developing composite materials that merge activated carbon with chitosan hydrogels, focusing on synthesis routes, structural features, and their performance in wastewater remediation. It examines fabrication methods designed to improve mechanical strength and adsorption efficiency of these composites, along with operational factors such as pH levels, temperature, initial pollutant concentration, dosage of adsorbent, and ionic strength that influence adsorption behavior. The combination of activated carbon with chitosan hydrogels demonstrates synergistic benefits, including superior adsorption capacity and faster pollutant removal rates. The review also discusses ongoing challenges such as material durability, ensuring regeneration, and outlines future research directions to support the broader application and scalability of these materials. By consolidating current findings and identifying gaps in knowledge, this review provides a detailed and insightful perspective on the potential of biomass-based activated carbon and chitosan hydrogels as sustainable tools for environmental remediation.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 6","pages":"1375 - 1404"},"PeriodicalIF":2.8,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of microcapsules through complex coacervation technique, their characterization and application on cotton fabric","authors":"Reena Yadav,&nbsp;J. N. Chakraborty","doi":"10.1007/s13726-025-01594-9","DOIUrl":"10.1007/s13726-025-01594-9","url":null,"abstract":"<div><p>Microencapsulation is a versatile technique used to produce microcapsules ranging from 1 to 1000 µm in size by enclosing active core substances within a layer of secondary material. In this work, sustainable microencapsulation methods were explored to creates smart and functional, antimicrobial cotton textiles using biopolymers. Two methods-simple and complex coacervation were employed to encapsulate clove essential oil. The simple coacervation method utilized a 3 (w/v%) gelatin solution at 40 °C, while the complex coacervation used a 1:1 ratio of 2 (w/v%) gum Arabic (GA) and gelatin (GE), with tannic acid as a natural cross-linker. Characterization techniques included optical microscopy, SEM, FTIR, and UV–Vis spectrophotometry. FTIR analysis revealed ionic interactions between tannic acid and gelatin–gum arabic matrix in the complex coacervation, whereas covalent bonding with glutaraldehyde was confirmed in the simple method. Complex coacervation yielded stable microcapsules with a zeta potential of − 7.69 mV and an average particle size of 6500 nm. Encapsulation efficiency was significantly higher in complex coacervation (72–93%) compared to the simple method (28–66%) with a statistically significant difference (<i>p</i> = 0.00) confirmed by paired t-test. The GE-GA/clove oil microcapsules were applied to cotton fabrics using a padding mangle and Eudragit S 100 as a binder. Antibacterial testing (AATCC 100-2004) demonstrated enhanced antimicrobial activity for the complex method, achieving a 92% reduction in <i>Escherichia coli</i> and 92.9% in <i>Bacillus subtilis</i>. These results indicated that complex coacervation is an effective, eco-friendly technique for producing durable antimicrobial textiles.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 6","pages":"1275 - 1288"},"PeriodicalIF":2.8,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POSS-based poly(ionic liquid) catalysts for solvent- and cocatalyst-free cycloaddition of CO2 at ambient pressure: experimental and mechanistic insights","authors":"Yiming Lai,&nbsp;Xinyu Wang,&nbsp;Longqiang Xiao,&nbsp;Yunhong Lan,&nbsp;Rui Zhao,&nbsp;Linxi Hou","doi":"10.1007/s13726-025-01589-6","DOIUrl":"10.1007/s13726-025-01589-6","url":null,"abstract":"<div><p>The chemical fixation of CO₂ into high-value cyclic carbonates is of great significance for achieving CO₂ utilization (CCU) technology. In this study, a series of imidazolium-based ionic linkers, designated as IL-2C, IL-3C, IL-4C, IL-5C, and IL-6C, were synthesized using 1-vinylimidazole and five different dibromoalkane linkers. The linker design incorporates flexible alkyl chains, where increasing chain length modulates the distance between imidazolium centers, influencing the resulting polymer network structure. Subsequently, their corresponding poly(ionic liquid) (PILs) porous polymers (PIL-2C, PIL-3C, PIL-4C, PIL-5C and PIL-6C) were synthesized through free radical copolymerization with octavinyl POSS using 2,2'-azobis(2-methylpropionitrile) (AIBN) as the initiator, resulting in crosslinked porous networks. The structure, morphology, and thermal stability of the PILs were characterized by NMR, FTIR, XRD, BET, SEM and TGA. The results indicate that the synthesized poly(ionic liquid) catalysts possess a mixed microporous/mesoporous structure, enhancing their performance in various applications. The PILs were evaluated as catalysts for the cycloaddition of CO₂ to epoxides, with PIL-5C exhibiting the best performance under ambient pressure, solvent-free, and co-catalyst-free conditions, achieving a cyclic carbonate yield as high as 99.9%. Reaction kinetic studies revealed that the POSS-based polymer significantly reduces the activation energy of the CO₂ cycloaddition reaction, and density functional theory (DFT) simulations provide a complete reaction pathway. Furthermore, PIL-5C demonstrated excellent catalytic activity for epoxides of varying sizes. As a heterogeneous catalyst, the POSS-based polymer showed no structural changes after recycling, as confirmed by FTIR and SEM analyses. The catalyst could be reused for 6 cycles while maintaining high catalytic performance.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 6","pages":"1261 - 1273"},"PeriodicalIF":2.8,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative halogen-free polymers: enhancing fire safety and electrical conductivity for sustainable industrial applications","authors":"Maziyar Sabet","doi":"10.1007/s13726-025-01587-8","DOIUrl":"10.1007/s13726-025-01587-8","url":null,"abstract":"<div><p>Halogen-free polymers are gaining increased attention across various industries due to their potential for reducing environmental and health risks compared to traditional halogenated polymers. This review critically examines recent innovations in the development of bio-derived polymers and flame-retardant silicones, focusing on their capability to minimize environmental impact while delivering superior performance. Bio-derived polymers, derived from renewable resources, provide eco-friendly alternatives that enhance biodegradability, decrease reliance on fossil fuels, and support a circular economy. Flame-retardant silicones, on the other hand, offer safer alternatives to conventional materials, particularly in high-performance applications where fire safety is paramount. Additionally, advanced synthesis techniques such as green chemistry, biocatalysis, and renewable feedstocks are explored for their potential to reduce emissions and waste during production. Despite the progress made in these areas, challenges remain, including optimizing mechanical and thermal properties and improving cost-effectiveness to drive widespread adoption. This review underscores the need for interdisciplinary collaboration to overcome these barriers and fully realize the benefits of halogen-free polymers. Future research directions are proposed, including enhancing material design, improving process efficiencies, and promoting industry-wide adoption of these sustainable materials. The findings of this review hold significance for industries such as electronics, automotive, aerospace, and medical devices, where both regulatory demands and environmental considerations are steering the shift toward greener solutions.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 6","pages":"1355 - 1373"},"PeriodicalIF":2.8,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148021045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enrichment of poly-fiber composites functional properties by the influences of hydrophobic titanium dioxide nanoparticles via injection mould technique","authors":"T. Premkumar,&nbsp;N. Nagabhooshanam,&nbsp;Prahalad Singh Parihar,&nbsp;Nilesh Bhosle,&nbsp;S. Supriya,&nbsp;V. S. N. Kumar,&nbsp;Debabrata Barik,&nbsp;R. Srinivasan,&nbsp;S. Sathiyamurthy","doi":"10.1007/s13726-025-01586-9","DOIUrl":"10.1007/s13726-025-01586-9","url":null,"abstract":"<div><p>With the advancement of polymer research, natural fibers are playing a prominent role in the development of biodegradable polymer composites, which are suited for automotive interior and exterior applications. It has certain drawbacks, including the hygroscopic nature of the natural fiber, poor fiber-matrix adhesion, and lower tensile strength. The objective of the investigation is to enhance the functional properties of the polypropylene/kenaf fiber composites by incorporating hydrophobic titanium dioxide nanoparticles through an advanced injection moulding technique at an applied injection pressure of 80 MPa. The influences of processing and actions of hydrophobic nanoparticles on the crystalline phase, surface morphology, moisture, and mechanical behaviour of composites were studied. The results demonstrated that an optimized injection pressure of 80 MPa led to a better crystalline phase, with short band (52–54⁰ (2θ)), even reinforcement dispersion and improved content of hydrophobic nanoparticle influenced for better functional behavior. Furthermore, the PP hybrid composite containing 6 wt% of titanium dioxide nanoparticles exhibited reduced moisture absorption behaviour of 0.0131%, increased tensile, flexural, and impact strength, and higher hardness, which were 62, 47, 70, and 19% better than the polypropylene matrix without reinforcement, respectively. Due to the presence of titanium dioxide nanoparticles, the interfaces between the matrix and fibers were strengthened.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"35 6","pages":"1245 - 1259"},"PeriodicalIF":2.8,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148020987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}