Keyvan Garoosi, Seyed Reza Ghaffarian, Mohammad Razavi-Nouri, Amir Masood Rezadoust, Zahra Soheilpour
{"title":"Evaluation of multi-walled carbon nanotubes alignment during 3D printing of poly(acrylonitrile-butadiene-styrene) nanocomposite filaments","authors":"Keyvan Garoosi, Seyed Reza Ghaffarian, Mohammad Razavi-Nouri, Amir Masood Rezadoust, Zahra Soheilpour","doi":"10.1177/07316844241265552","DOIUrl":"https://doi.org/10.1177/07316844241265552","url":null,"abstract":"Nanocomposites incorporated with one-dimensional electrical conductive materials such as carbon nanotubes have been used in many applications in various industries. In this research, the filaments made of poly (acrylonitrile-butadiene-styrene) (ABS) containing 1, 3, and 5 wt% multi-walled carbon nanotubes (MWCNT) were first prepared and then printed in three directions and two printing speeds. The rheological and electrical percolation thresholds were found to take place at 0.32 and 0.96 wt% MWCNT, respectively. Using the Casson plot, it was revealed that the yield stress of the nanocomposites containing 5 wt% MWCNT was 70 times higher than that of the pristine ABS. The results also indicated that the electrical resistance decreased from 17.4 to 6.8 Ω with the increase in printing speed from 4 to 20 mm/s, respectively. The alignment of the nanofillers was examined using X-ray diffraction method. It was found from the azimuth angle that the materials printed at higher printing speed had more orientation, with respect to the director, in comparison with that of printed at lower speed.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"14 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141773348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H Jagadeesh, Prashanth Banakar, P Sampathkumaran, RRN Sailaja, Jitendra Kumar Katiyar
{"title":"Influence of varying matrix/fiber concentration on mechanical properties of bi-directional carbon fiber reinforced polymer composite","authors":"H Jagadeesh, Prashanth Banakar, P Sampathkumaran, RRN Sailaja, Jitendra Kumar Katiyar","doi":"10.1177/07316844241263188","DOIUrl":"https://doi.org/10.1177/07316844241263188","url":null,"abstract":"The polymer composites comprising bi-directional carbon fabric incorporated in the epoxy matrix have been developed for various advanced applications in the field of automobile and aerospace sectors. The distinct advantages of using epoxy material with hardener are good adhesion, high tensile, compression and bending strengths, good corrosion, and heat resistance properties. Using carbon fiber enhances the stiffness, reduces the weight, and improves the chemical resistance apart from possessing high thermal conductivity and low coefficient of thermal expansion. Considering all the above aspects, the present work proposes to investigate the mechanical properties of carbon-reinforced epoxy composites with fiber matrix ratios of 40:60, 50:50, and 60:40 by wt% as these particular combinations have been limitedly addressed so far. The well-known hand lay-up technique has produced the laminates and the test samples prepared from the laminate are subjected to tensile, flexural, hardness, and impact strength properties. Based on the experimental work of the composites made in the laboratory, the fiber matrix ratio of 60:40 has revealed the best attributes in terms of higher mechanical strengths compared to the composites with fiber matrix ratio of 40:60 and 50:50 and the data obtained have been substantiated using scanning electron microscope analysis.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"61 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141773350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An in-depth investigation into the utilization of nettle fiber-reinforced epoxy composites with embedded MgO nanoparticles","authors":"Thandavamoorthy Raja, Yuvarajan Devarajan, Kamaraj Logesh, Asha Rajiv, Vijay Jagdish Upadhye, Kuldeep Tiwari","doi":"10.1177/07316844241266650","DOIUrl":"https://doi.org/10.1177/07316844241266650","url":null,"abstract":"The present work thoroughly examines the possible utilization of nettle fiber reinforced MgO nanoparticles filled epoxy composite as a viable and environmentally friendly alternative for engineering applications. The experimental investigations included various mechanical, structural, and thermal examinations, incorporating tests such as tensile, flexural, Izod impact, and Shore D hardness tests. Also, the composite was analyzed using advanced characterization techniques to determine its morphological and chemical properties. The findings demonstrated improved mechanical properties are tensile strength (36.23 MPa) and flexural strength (40.13 MPa), Izod impact strength (15 kJ/m<jats:sup>2</jats:sup>), and Shore D hardness (64) indicating the potential of the composite material for use in load-bearing applications. Scanning Electron Microscopic images elucidated a uniform dispersion of MgO nanoparticles, while elemental analysis, X-ray Diffraction, and Fourier Transform Infrared Spectroscopy confirmed their successful integration within the epoxy matrix. Thermal evaluations recorded significant improvements in heat deflection temperature and thermal conductivity, accompanied by a reduced coefficient of linear thermal expansion, indicating the composite’s ability to withstand and dissipate heat efficiently. Also, it contains the antibacterial activity against the Pseudomonas aeruginosa and Staphylococcus aureus. Conclusively, the nettle fiber reinforced MgO nanoparticles-filled epoxy composite demonstrates significant value as an environmentally sustainable and mechanically robust material for various engineering and biomedical applications.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"85 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hao Wang, Jan Petersen, Kai Fischer, Michael Emonts
{"title":"Influence of inlay consolidation quality on morphology of hybrid injection-moulded parts and their bending behaviour","authors":"Hao Wang, Jan Petersen, Kai Fischer, Michael Emonts","doi":"10.1177/07316844241264598","DOIUrl":"https://doi.org/10.1177/07316844241264598","url":null,"abstract":"This paper investigates the interactions of process parameters along the process chain for the manufacture of a trunk-like injection-moulded component with local inserts of unidirectional thermoplastic tape. In contrast to the established technology for overmoulding continuous fibre reinforced thermoplastics with a high proportion of unidirectional fibres, the component design investigated consists of 99 wt% long fibre injection moulding material reinforced with a very low amount of strip-like inserts of 1 wt% carbon fibre tape. The design facilitates cost, CO<jats:sub>2</jats:sub>-e and weight reduction compared to a pure injection-moulded part. The process chain comprises laser-assisted tape placement, preforming of the inserts by local bending and finally overmoulding. Particular attention is paid to the effect of the consolidation quality of the inserts after tape placement on the fracture behaviour in two sections of the part, the radii at the bending sections, which are subjected to post-consolidation during preforming, and the flat sections, which are only subjected to potential post-consolidation effects due to overmoulding. The investigations are carried out by means of various bending tests and analysis of the morphology by means of micrographs.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"22 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhengxue Shi, Kuilin Zhu, Jie He, Liyi Liu, Feng You, Danfeng Zhou, Yuan Fang, Chu Yao
{"title":"Improved the sound insulating properties of polystyrene through using organically modified montmorillonite","authors":"Zhengxue Shi, Kuilin Zhu, Jie He, Liyi Liu, Feng You, Danfeng Zhou, Yuan Fang, Chu Yao","doi":"10.1177/07316844241266776","DOIUrl":"https://doi.org/10.1177/07316844241266776","url":null,"abstract":"The alleviation of the transmission for noise by using sound insulation materials has been regarded as an efficient route to control noise. In this work, the reinforcing effect on the sound insulating properties of polystyrene (PS) was successfully realized by using cetyltrimethylammonium bromide (CTAB) organically modified montmorillonite. The micrometer montmorillonite (MMT) was firstly organic modified by CTAB and then was melt blended with PS matrix to obtain high sound insulation polymer composites. X-ray diffraction results revealed that CTAB intercalation into MMT lamellar structure, leading to the increased lamellar space of the organically modified montmorillonite (OMMT). Moreover, the OMMT lamellar spacing was further enlarged by the intercalation of PS molecular chains. The sound insulation properties of all samples were tested by a four-microphone impedance tube. The average sound transmission loss (STL) of PS composites increased with the amount of OMMT. The average STL of PS/OMMT composite with the thickness of only 1.8 mm can reach to 35.46 dB when the weight fraction of OMMT was 30%, which is 36.0% higher than that of pure PS (26.08 dB). The sample thickness increased to 3.8 mm and the average STL up to 47.78 dB. Meanwhile, the storage modulus and thermal stability of PS were also enhanced by incorporating OMMT. This fabricating technique can provide a novel method to obtain low-cost and low-weight acoustic materials with high sound insulating properties.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"13 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. M. Elbasiony, Sheikha A. Alkhursani, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, A. I. Sharshir
{"title":"Exploring the potential of CuO nanoneedles and CNT/PVC nanocomposites in medium voltage cable technology","authors":"A. M. Elbasiony, Sheikha A. Alkhursani, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, A. I. Sharshir","doi":"10.1177/07316844241266771","DOIUrl":"https://doi.org/10.1177/07316844241266771","url":null,"abstract":"This study focuses on the development of CuO nanoneedle and multi wall carbon nanotube (CNT) reinforced poly (vinyl chloride) (PVC) nanocomposites for medium voltage cable applications. CuO nanoneedles were synthesized using a pulsed wire evaporation technique and integrated with CNTs to create CuO/CNT nanocomposites. The nanocomposites were then used to reinforce PVC films through a solution casting method. Microstructural characterization confirmed the uniform dispersion of CuO nanoneedles and CNTs concentrations (0–0.4 wt%) within the PVC matrix. Microstructural characterization by XRD, SEM, and TEM confirmed the formation of CuO nanoneedles (diameter ∼4 nm, length 200–250 nm) and their uniform dispersion within the PVC matrix along with CNTs. Optical studies revealed reduced optical bandgap and Urbach tail width in PVC/CuO/CNT nanocomposites compared to neat PVC/CuO. Electrical characterization showed significantly improved AC conductivity (up to eight orders of magnitude) with increasing CNT loading, attributed to the formation of efficient charge transport networks. Dielectric studies revealed concurrent improvements in dielectric permittivity and losses with CNT addition. Simulations demonstrated a more uniform electric field distribution in PVC/CuO/CNT nanocomposites, mitigating hotspots. The synergetic effects of CuO nanoneedles and CNTs led to excellent improvements in the electric properties of PVC, underscoring their potential in medium voltage cable applications.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"47 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manjeet Singh, Atanu Jha, Subhendu Ray Chowdhury, Harish Jagat Pant
{"title":"Preparation of highly biodegradable and electron beam crosslinkable linear low-density polyethylene - based biocomposites with unique mechanical performance","authors":"Manjeet Singh, Atanu Jha, Subhendu Ray Chowdhury, Harish Jagat Pant","doi":"10.1177/07316844241266649","DOIUrl":"https://doi.org/10.1177/07316844241266649","url":null,"abstract":"Preparation of high starch containing LLDPE (linear low-density polyethylene)/starch composite with a considerable degree of mechanical properties has always been a challenge for a long time. These challenges are low thermal stability of starch, difficulties in processability of high starch containing LLDPE, inability of polymers to contain large quantities of starch and compromised mechanical properties of prepared composites. To overcome these difficulties, 20 wt% ENGAGE (ethylene-octene copolymer), a polyolefin elastomer, was blended with 80 wt% LLDPE followed by composites preparation with modified starch-pistachio shell powder (SPSP). ENGAGE, due to its unique processability, improved the processability of high SPSP-containing LLDPE composite. And due to the generation of extra space by amorphous ENGAGE, the LLDPE/ENGAGE blends could accommodate up to 70 wt% SPSP without any degradation during high-temperature processing. Mechanical properties were also considerably enhanced due to the reinforcement of the polymer matrix by pistachio shell powder (PSP). SEM and dynamic mechanical analysis (DMA) confirmed the structural integrity of processed composites and uniform dispersion of SPSP into LLDPE/ENGAGE blends. The obtained LLDPE-based composites with 70% biodegradability and around 240% elongation are unique and useful. It is also revealed that the presence of 20 wt% PSP inhibits electron beam-initiated degradation of starch instead leading to crosslinked network in composites, thus further enhancing properties.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"48 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental and numerical study on the shear behavior of hybrid BFRP/steel RC beams without shear reinforcement","authors":"Wen Xu, Jin Wu, Yahia M. S. Ali","doi":"10.1177/07316844241263895","DOIUrl":"https://doi.org/10.1177/07316844241263895","url":null,"abstract":"Hybrid reinforcement of steel and fiber-reinforced polymer (FRP) bars can provide a balanced performance between strength, ductility, and durability for the concrete structures. Thus, this study evaluates the shear performance of hybrid Basalt-FRP/steel-RC beams without shear reinforcement. A total of twelve RC beams were cast and tested under four-point loading to study the influence of reinforcement type, reinforcement ratio of longitudinal bars and axial stiffness between FRP and steel ratio, [Formula: see text] on the shear performance of the concrete beams. The test results were analyzed in terms of crack patterns, load-midspan deflection, load-crack width relationships, and shear strength of the tested beams. In addition, the experimental results were compared with the theoretical results obtained from various design codes and guidelines. Moreover, a finite element (FE) model was created, and the experimental results were used for validation of the FE model. The test results revealed that the beam specimens designed with similar effective reinforcement ratio exhibits comparable shear strength nevertheless the tensile reinforcement used. Experimental test results demonstrated that using hybrid bars increased the shear capacity of the beams by 11% compared to steel bars. Furthermore, the energy absorption of the hybrid-RC beams was enhanced by 16% compared to FRP-RC beams. By elevating the [Formula: see text] ratio from 1.25 to 2.44, both the shear strength and energy absorption improved by approximately 10%. Notably, there was a significant decrease in the deflection and crack width of the hybrid-RC beams in comparison to the FRP-RC beams. The design codes ACI440.11-22 and CSA S806-12 displayed accurate enough estimates of the shear strength, while JSCE-1997 showed a conservative result.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"63 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterization of 3D printable Polyethylene Terephthalate Glycol composite filament reinforced with agricultural waste derived from pineapple plant","authors":"Jitendra Kumar, Vishal Mishra, Avinash Kumar, Sushant Negi","doi":"10.1177/07316844241263897","DOIUrl":"https://doi.org/10.1177/07316844241263897","url":null,"abstract":"The aim of the current research is to develop a 3D printable PETG composite filament reinforced with pineapple fiber particulate (PALF-P). These filaments were produced using an extrusion technique, incorporating varying weight percentages (1.5%, 2.5%, 5%, and 7.5%) of PALF particles treated with a 5% NaOH chemical solution. Analytical techniques like Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD) evaluated the impact of this treatment. A comprehensive study of the resulting composite filaments’ mechanical and physical attributes revealed improved cohesion between the PETG matrix and PALF particles, enhancing the overall properties. Specifically, the incorporation of 5 wt % PALF particles showed the highest ultimate tensile strength (53.54 ± 2.7 MPa), Young’s modulus (1443 ± 72.22 MPa), and load-bearing capacity (104.97 ± 5.25 N). In contrast, 2.5% of particles had the least noticeable effect on mechanical properties. Moreover, the developed sustainable composite filament showed significant promise in advancing bio-composites through additive manufacturing, potentially contributing to sustainable manufacturing practices.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"39 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xinquan Chang, Xin Wang, Changyuan Liu, Zhishen Wu, Mohammad Noori
{"title":"Anchoring and stressing methods for prestressed FRP plates: State-of-the-art review","authors":"Xinquan Chang, Xin Wang, Changyuan Liu, Zhishen Wu, Mohammad Noori","doi":"10.1177/07316844241258864","DOIUrl":"https://doi.org/10.1177/07316844241258864","url":null,"abstract":"Prestressing of the fiber-reinforced polymer (FRP) plate is applied to fully extend the high-strength performance of the FRP plate in structure reinforcement. Anchoring methods and stressing are the two main issues for prestressed FRP plates. Although a number of methods concerning those two main issues have been developed, the literature lacks a systematic review on the existing methods for FRP plates anchoring and stressing. This article compares the comprehensive performance of different FRP plates, recommending BFRP plates as more suitable for use in prestressed tensioning systems. It contrasts the principles and applicability of various anchoring devices, suggesting that wedge-type clip anchors and flat-type anchors show promising development prospects. Additionally, addressing stress concentration in the anchorage zones of low-modulus FRP plates is key to enhancing anchoring efficiency. Ultimately, the paper evaluates tensioning methods for FRP plates, identifying “the method of jacking against the strengthened component” as the most promising, yet it requires innovation in terms of dimensions and positioning of the tensioning frame to enhance its applicability to specific engineering needs.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"19 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}