Iranian Polymer Journal最新文献

{"title":"Friction and wear characteristics of anti-skid masterbatch filled acrylonitrile butadiene styrene (ABS) based polymer composite using Taguchi and machine learning techniques","authors":"Ranjan Kumar,&nbsp;Saurabh Suman,&nbsp;Umang Raj,&nbsp;Sujeet Kumar Mishra,&nbsp;Sudhir Kumar Saw,&nbsp;Sudeepan Jayapalan","doi":"10.1007/s13726-024-01434-2","DOIUrl":"10.1007/s13726-024-01434-2","url":null,"abstract":"<p>The effect of anti-skid masterbatch (ASM) filled acrylonitrile butadiene styrene (ABS) composite on friction coefficient (COF) and specific wear rate (SWR) characteristics are explored. The composites were developed by varying percentage (by wt) of ASM filler loadings with the ABS matrix through a co-rotating, intermeshing, twin-screw extruder using melt-mixing and injection molding process. The developed composite samples underwent various experimental runs following the L₁₆ orthogonal array (OA) design of experiments (DOE) at three factors (filler content, load and frequency) and four levels to assess the friction and wear behavior of the composite. The investigation identifies the optimal parameter settings for COF and SWR at <b>A</b>_<b>4</b><b>B</b>_<b>1</b><b>C</b>_<b>2</b> and <b>A</b>_<b>4</b><b>B</b>_<b>2</b><b>C</b>_<b>1</b> parameter levels. Results from the confirmation test demonstrated a ~ 24% increase and a ~ 8% reduction in COF and SWR characteristics, respectively. ANOVA tests revealed that load and frequency had a significant effect on COF and SWR. In addition, supervised machine learning (ML) models were employed to predict the COF and SWR behavior of the ABS/ASM composite. The study found that random forest regressor (RFR) and gradient boosting regressor (GBR) models out-performed decision tree regressor (DTR) models, with <i>R</i>² values of 0.9109 and 0.8909 for COF, and 0.9079 and 0.8979 for SWR, respectively. These models closely matched the optimized experimental results and exhibited lower performance matrix values, such as mean absolute error (MAE) and root mean square error (RMSE), further validating their accuracy. The Taguchi statistical model also showed strong predictive power with <i>R</i>² values of 0.9587 for COF and 0.7074 for SWR. The significance of this study lies in its contributions to the field of composite material development, especially in the optimization of tribological properties for practical applications. The findings not only highlight the potential of ABS/ASM composites in improving friction and wear characteristics but also showcase the effectiveness of ML models in predicting these behaviors with high accuracy. This research opens up new avenues for the application of ASM-filled composites, particularly in floor liner applications, and sets a foundation for further advancements in the use of data-driven approaches in material design and performance prediction.</p>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1039 - 1055"},"PeriodicalIF":2.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164592","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":"An intrinsic investigation of surface treated Kevlar intraply patch-repaired glass fiber polymer composites","authors":"Ramasamy Nallamuthu,&nbsp;Arumugam Vellayaraj,&nbsp;Sambath Srinivasan,&nbsp;Prabhu Bose,&nbsp;Prakash Muniyandi","doi":"10.1007/s13726-024-01423-5","DOIUrl":"10.1007/s13726-024-01423-5","url":null,"abstract":"<p>Fiber-reinforced polymer composites have attracted considerable interest from the aerospace industry to repair existing engineering structures. This is mainly because such composites are more affordable than replacements. This study reveals that glass/epoxy parent composite laminates were repaired using a Kevlar/glass intraply hybrid patch with various volume fractions, such as 44/56 (% by vol) and 64/36 (% by vol). Moreover, the 15% phosphoric acid (PA)-pretreated 1-h epichlorohydrin (ECH)-treated Kevlar fibers were used for glass intraply patch hybridizations. EDAX and XPS analyses were used to observe the chemical components and bonds activated in the surface-modified Kevlar fiber surface. The quasi-static indentation (QSI) of chemically treated Kevlar hybrid patch-repaired composites was investigated and compared to virgin and untreated Kevlar hybrid patch composites. The results showed that the treated Kevlar hybrid patches achieved a desired level of stiffness and strength, in comparison to the untreated and original repair composites. The ultimate load of the Kevlar surface-treated patch composites increased by 27.36% and 41.1% compared with the untreated Kevlar hybrid patch-repaired and unrepaired glass/epoxy parent laminates, respectively. Furthermore, the stiffness of the treated Kevlar hybrid patch-repaired sample increased by 38.4% compared to untreated Kevlar hybrid patch samples. The indentation damage failure analysis of the repaired composite laminates was investigated by acoustic emission (AE) analysis. It was revealed that the delamination and fiber breakage AE hits percentage of treated Kevlar patch were decreased by 22.1% and 31.1%, respectively, compared to the untreated Kevlar patch-repaired samples. Also, the indentation damage behaviors were analyzed and validated by scanning electron microscopy (SEM).</p>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1057 - 1071"},"PeriodicalIF":2.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163580","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":"A review on in situ gels as polymer drug carriers in the treatment of periodontitis","authors":"Xuran Mao,&nbsp;Yue Liang,&nbsp;Yanli Li,&nbsp;Cuiyao Li,&nbsp;Yifan Wang,&nbsp;Yue Gu,&nbsp;Yongxu Piao,&nbsp;Qi Jia,&nbsp;Heng Bo Jiang,&nbsp;Eui-Seok Lee","doi":"10.1007/s13726-024-01422-6","DOIUrl":"10.1007/s13726-024-01422-6","url":null,"abstract":"<div><p>The “in situ gel” system has become one of the emerging drug delivery systems and plays a significant role in the treatment of periodontitis. The “sol–gel” transition has distinct characteristics that respond to physiological stimulation, enabling a controlled and sustained drug release, thus offering various advantages over traditional mechanical and systemic drug delivery methods. In oral drug delivery systems, in situ gels are commonly based on four main types: thermosensitive, pH-triggered, ion-induced, and solvent-exchange in situ gels. Polymers have been used in in situ gel formulations and maintain their potential in periodontal drug delivery. Different types of polymers are commonly used in four types of in situ gel formulations, such as poloxamer, carbopol, bleached shellac (BS), chitosan, and hydroxypropyl methylcellulose (HPMC). To understand the important role of in situ gel as a polymer drug carrier in drug release and evaluate its therapeutic effect on periodontitis, this article reviews the sol–gel transition mechanism of four main stimulation types of in situ gel, the effects of different in situ gel-forming polymer materials on the properties of in situ gel, and the latest research progress in in situ gel application in the treatment of periodontitis. The effectiveness of in situ gels for the treatment of periodontitis and the influence of various polymers on the overall properties of in situ gels were evaluated, providing new ideas and methods for the treatment of periodontitis in terms of the summary of research progress and also providing valuable experience for the design and development of in situ gels.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1085 - 1121"},"PeriodicalIF":2.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164090","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":"Manganese dioxide nanoparticle coated graphene oxide hybrid nanofiller: its effect on structural, thermal, and dielectric properties of polyaniline ternary nanocomposites","authors":"Pooja Mohapatra,&nbsp;Shreelata Behera,&nbsp;Saleja Sahoo,&nbsp;Annada Mishra,&nbsp;Akankshya Panda,&nbsp;Lipsa Shubhadarshinee,&nbsp;Bigyan Ranjan Jali,&nbsp;Aruna Kumar Barick,&nbsp;Priyaranjan Mohapatra","doi":"10.1007/s13726-024-01432-4","DOIUrl":"10.1007/s13726-024-01432-4","url":null,"abstract":"<div><p><i>Ocimum sanctum</i> (Tulsi) leaf extract was taken as both reducing and capping agent to synthesize manganese dioxide nanoparticles (MnO₂NPs). The MnO₂NPs coated graphene oxide (MnO₂NPs coated GO) hybrid nanofillers were synthesized using an in situ method. MnO₂NPs coated on GO hybrid nanofillers reinforced polyaniline (PANI) ternary nanocomposites were fabricated by incorporating “MnO₂NPs coated GO hybrid nanofillers” into the polyaniline (PANI) matrix through in situ polymerization. FTIR showed interactions between the components, evidenced by the Mn–O bond and secondary amine group at 507. The absence of the data of ternary nanocomposites is evident due to their insolubility in any solvents. The XRD analysis suggested the successful incorporation of MnO₂NPs-at-GO into the PANI matrix, resulting in reduced crystallinity and strong interfacial interactions without forming any new crystalline phases. The addition of MnO₂NPs-at-GO hybrid nanofillers significantly enhanced the thermal stability of the PANI matrix. SEM revealed changes in nanostructured morphology caused by the presence of MnO₂NPs-at-GO hybrid nanofillers within the PANI matrix by effectively coating MnO₂NPs-at-GO hybrid nanofillers with PANI molecular chains. The dielectric parameters of the PANI/MnO₂-at-GO ternary nanocomposites were significantly altered i.e., both AC conductivity and dielectric permittivity increased, and dielectric loss decreased in comparison with the pristine PANI matrix across the applied frequency region caused by the establishment of interfacial adhesions among MnO₂NPs-at-GO hybrid nanofillers and PANI matrix. This ternary nanocomposite can lead to advanced materials with enhanced structural integrity, thermal stability, and dielectric properties, making them suitable for applications in flexible electronics and energy storage devices. Additionally, these nanocomposites could be utilized in sensors and conductive coatings, benefiting from their improved performance characteristics and multifunctionality.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1001 - 1013"},"PeriodicalIF":2.8,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163464","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":"Electrospinning and characterization of lignin nanofibers as pH-responsive hydrogel with antibacterial activity and biocompatibility in biomedical application","authors":"Mahsa Kangazian Kangazi,&nbsp;Aliakbar Merati,&nbsp;Majid Montazer,&nbsp;Mahnaz Mahmoudi Rad","doi":"10.1007/s13726-024-01410-w","DOIUrl":"10.1007/s13726-024-01410-w","url":null,"abstract":"<div><p>Lignin is a biocompatible, biodegradable and renewable biopolymer with macromolecular structure that can be used in production of hydrogel network. The main aim of this research was to electrospin lignin hydrogel in the form of nanofibers by engineering the polymer structure to form stimuli-responsive lignin nanofibers in alkaline pH. For this purpose, a blend of lignin/PVA (polyvinyl alcohol) and citric acid as a friendly cross-linker were electrospun. SEM images showed the best morphology of nanofibers at lignin/PVA of 98:2 with mean diameters of 215 and 176 nm on the static and rotational drum, respectively. The FTIR spectra and X-ray diffraction confirmed the formation of networks between the PVA and lignin chains. The produced nanofibers of lignin can classify as a smart nanohydrogel due to the high swelling ratio in alkaline pH. Antibacterial assays confirmed suitable activities against <i>S. aureus</i> and the fungus <i>Candida albicans</i> for the nanofibers with 20% lignin. Further, the cell cytotoxicity against cell fibroblast of the human skin showed reasonable cell viability. Finally, the nanofibers with 20% lignin collected on the rotational drum indicated the higher strength and modulus of elasticity. In conclusion, the fabricated stimuli-responsive hydrogel with 20% lignin showed suitable performance in antibacterial activity, cytotoxicity and it displayed good mechanical properties. In addition, due to the repulsive interactions between ionized carboxylic groups under alkaline pH, the swelling occurs. As a result, these nanofibers are potentially applicable in biomedical applications such as wound dressing.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 5","pages":"751 - 764"},"PeriodicalIF":2.4,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821747","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":"Advanced cenosphere-reinforced syntactic foams: focus on specific strength enhancement","authors":"Vishwas Mahesh","doi":"10.1007/s13726-024-01425-3","DOIUrl":"10.1007/s13726-024-01425-3","url":null,"abstract":"<div><p>This work investigated the manufacturing and mechanical properties of the cenosphere-filled syntactic foams (SF). The foams were created by mixing cenospheres with a polymer resin, which was then cured to form a solid structure. The resulting syntactic foams were evaluated using hardness, density, tensile, flexural, and Charpy impact tests. The incorporation of higher volume fractions of cenosphere led to significant weight savings and improved mechanical properties. Notably, the SF60 composition achieved a 20.39% reduction in density and a 26.15% increase in hardness compared to the neat epoxy. The study demonstrated significant improvements in the mechanical properties of the syntactic foams when compared to the neat epoxy. Specifically, the flexural modulus of SF60 was 10.63% higher compared to SF0, and an even more pronounced increase of 33.11% was observed when compared to the pure resin sample. In tensile testing, the modulus values of the foams were shown to increase by 5.53–33.83% relative to the pure resin. Furthermore, the specific modulus of the syntactic foams exhibited a substantial enhancement, ranging from 14.5% to 61.23% higher compared to the neat sample. Impact strength testing revealed that the developed foams demonstrated a significant improvement, with a 7.2–65.5% increase in impact strength compared to the neat epoxy. Moreover, the specific impact strength of the syntactic foams was found to be 13.3–100% higher than that of the neat epoxy. These findings indicated that cenosphere-filled syntactic foams not only enhanced mechanical performance but also offered significant weight reduction, making them ideal for lightweight applications where both strength and impact resistance are crucial.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 8","pages":"1135 - 1150"},"PeriodicalIF":2.8,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162362","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":"Investigation of mechanical and water absorption characterization of chitosan and rice bran reinforced biochar-based composites","authors":"Sambhrant Srivastava","doi":"10.1007/s13726-024-01431-5","DOIUrl":"10.1007/s13726-024-01431-5","url":null,"abstract":"<div><p>This work investigated the innovative combination of biochar, chitosan, and rice bran as natural fillers in epoxy composites, prepared via the hand layup method. Mechanical tests revealed that sample A (90% epoxy, 10% chitosan) achieved the highest tensile strength (17.74 MPa), flexural strength (173.8 MPa), tensile modulus (8046.23 MPa), and flexural modulus (4933.56 MPa), with minimal water absorption (2.3255%) and porosity (0.130%). Sample B (90% epoxy, 8% chitosan, 2% biochar) showed decreased tensile strength (10.05 MPa) but improved flexibility (138.43 MPa). In contrast, sample E (90% epoxy, 10% biochar) exhibited the weakest performance, with tensile strength (7.723 MPa), highest porosity (0.555%), and maximum water absorption (9.0390%). The novelty of the work lay in the comprehensive analysis of the synergistic effects of these multi-filler compositions on mechanical properties and moisture resistance, with SEM micrographs revealed uniform filler dispersion and FTIR spectroscopy confirmed characteristic functional groups. This work provided valuable insights for optimizing eco-friendly composites for various applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1029 - 1038"},"PeriodicalIF":2.8,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161853","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":"Characterization of polypropylene–polyolefin elastomer blends for FDM additive manufacturing","authors":"Yong Liu,&nbsp;Yunzhong Dai,&nbsp;Shengyang Luo","doi":"10.1007/s13726-024-01413-7","DOIUrl":"10.1007/s13726-024-01413-7","url":null,"abstract":"<div><p>Polypropylene (PP) is extensively utilized in fused deposition modeling (FDM) due to its advantageous properties, yet challenges such as dimensional inaccuracies and warping persist. This work proposes a solution by blending PP with a polyolefin elastomer (POE) and 3D printing with granule-based material extrusion method. By varying POE concentrations (ranging from 10 to 50%), this work comprehensively investigates their effects on printability, stability, adhesion, flexibility, and mechanical performance. The results indicated that higher POE content led to a notable decrease in stiffness, accompanied by improved damping properties and enhanced toughness. Specifically, tensile strength exhibited a reduction of 22% and 31% with each increment in POE content, while compressive strength decreased from 8.27 MPa to 4.56 MPa. Scanning electron microscopy (SEM) analysis underscored the enhanced filament bonding observed with higher POE content. The results of morphology investigation showed that at 10% POE content, well-distributed spherical domains showed excellent elastomer dispersion in the PP matrix, implying potential matrix droplet structure and surface adhesion between phases. By increasing the POE content to 50%, a sea-island structure with a continuous PP matrix and scattered POE domains appeared, which justified the results of increased elasticity and damping factor. These findings highlighted the promising potential of the PP/POE blends in mitigating printing challenges and elevating the performance of the 3D printed parts.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 6","pages":"829 - 839"},"PeriodicalIF":2.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900789","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":"Effects of the physico-mechanical properties on water tightness performance of ethylene propylene diene monomer-based tunnel segment gasket","authors":"Ekrem Altuncu,&nbsp;Nevcan Ince Baysal,&nbsp;Nilay Tuccar Kilic","doi":"10.1007/s13726-024-01428-0","DOIUrl":"10.1007/s13726-024-01428-0","url":null,"abstract":"<div><p>Water tightness is a critical concern for tunnels during both construction and operation. In industry, ethylene propylene diene monomer (EPDM) gaskets are commonly used at tunnel joints to prevent groundwater infiltration. This study investigates the influence of physical and mechanical properties, particularly about filler content, on the waterproofing performance of EPDM segmental gaskets. EPDM compounds with carbon black (CB) and calcium carbonate (CaCO₃) fillers were prepared using an internal mixer and hot press, followed by various physical, mechanical, morphological, and water-tightness tests. The hardness of the compounds ranged from 68 to 71 Shore A, while densities varied from 1.16 to 1.28 ± 0.04 g/cm³, indicating no significant change with different filler amounts. However, tensile strength decreased from 12.7 to 6.3 MPa, and elongation-at-break values dropped from 415 to 294% as filler loading increased. Compression sets rose from 9.7% to 49.6% with higher filler content. Stress-relaxation tests revealed that stress losses increased when filler quantities exceeded 50%, with formulations containing less filler exhibiting superior performance. Water-tightness tests showed that the compound with lower filler content could withstand up to 28 bar of water pressure with a 6 mm offset, while the compound with higher filler content only tolerated 10 bar with a 2 mm offset. Morphological analysis indicated a more homogeneous distribution in compounds with lower levels of fillers. Therefore, EPDM–CB–CaCO₃ compounds with lower filler content may be preferred in tunnel segmental joints, offering improved water tightness and mechanical performance.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 8","pages":"1123 - 1134"},"PeriodicalIF":2.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161439","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":"Grewia optiva fiber-reinforced epoxy and epoxy-babool gum resin composites: mechanical and acoustic properties","authors":"Kishor Kalauni,&nbsp;S. J. Pawar","doi":"10.1007/s13726-024-01426-2","DOIUrl":"10.1007/s13726-024-01426-2","url":null,"abstract":"<p>The mechanical and acoustic properties of composites made from <i>Grewia optiva</i> fiber (GOF)-reinforced epoxy and epoxy-babool gum resin are examined. The biocomposites were prepared with different amounts (5%, 10%, and 15%) of continuous and discontinuous GOFs. It was found that using continuous GOFs significantly improves tensile strength and modulus compared to discontinuous fibers. Increasing the GOF content enhances the tensile properties over pure resin. Continuous fiber-reinforced composites also showed slightly better flexural strength and load-bearing capacity during testing, with 15% continuous GOF composites having the highest tensile and flexural strength. Microscopic analysis showed good bonding between the fibers and the matrix, though some minor defects like debonding and fiber breakage were observed. Acoustic testing revealed that these composites effectively absorb sound in the mid-frequency range, with GOF-reinforced epoxy-babool composites performing best. The research highlights the potential of using natural fibers and resins to create eco-friendly, high-performance biocomposites, offering a sustainable solution for material disposal and promoting green practices.</p>","PeriodicalId":601,"journal":{"name":"Iranian Polymer Journal","volume":"34 7","pages":"1073 - 1083"},"PeriodicalIF":2.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171618","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}