Journal of Thermoplastic Composite Materials最新文献

{"title":"Experimental evaluation and optimization of parameters affecting delamination, geometrical tolerance and surface roughness in ultrasonic drilling of 3D-Printed PLA thermoplastic","authors":"Mohammad Baraheni, Mohammad Reza Shabgard, Saeid Amini, Farid Gholipour","doi":"10.1177/08927057241264803","DOIUrl":"https://doi.org/10.1177/08927057241264803","url":null,"abstract":"Ultrasonic drilling is a suitable process to enhance the generated surfaces by additive manufacturing. In this study, polylactic acid was selected as the workpiece. The examination parameters were thrust force, delamination, geometrical tolerance, chip adhesion, hole wall morphology and surface roughness. It was explained that the harmonic movement of drill bit in ultrasonic drilling reduced thrust force, delamination, circularity, cylindricality and surface roughness up to 14.5%, 3.7%, 44%, 38%, 20% respectively and removed chip adhesion. Furthermore, number of end-mill flutes was examined and observed that 4-flutes compared to 2-flutes induced reduction in thrust force, delamination, circularity, cylindricality and surface roughness up to 15.2%, 2%, 7.5%, 18.9%, 12.5% respectively. Besides, analysis of variance was established to determine the significant parameters. Finally, non-dominated sorting genetic algorithm-II technique was implemented in order to carry out multi-response optimization.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141530265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative hybrid nanocomposites of recycled polyethylene terephthalate/polyamide 11 reinforced with sepiolite and graphene nanoplatelets","authors":"Zahid Iqbal Khan, Unsia Habib, Zurina Binti Mohamad, Arbab Tufail, Abdulwasiu Muhammed Raji, Asmat Ullah Khan","doi":"10.1177/08927057241264457","DOIUrl":"https://doi.org/10.1177/08927057241264457","url":null,"abstract":"This research delves into the novel development of hybrid nanocomposites using recycled polyethylene terephthalate (rPET)/polyamide (PA11) with sepiolite, enhanced by the integration of Graphene Nanoplatelets (GNP). Five different formulations were produced using co-rotating twin-screw extrusion and injection moulding techniques. The optimal blend, which includes equal amounts of sepiolite and graphene nanoplatelets (phr, 1 part per hundred resin each), exhibited a tensile strength of 54.5 MPa, representing an increase in tensile strength by 46.5% and an increase in percent strain by 59% as the GNP content increased from 0.2 to 1 phr, replacing sepiolite. Young’s modulus of hybrid nanocomposites varied between 1020 and 1285 MPa, indicating a significant enhancement. Flexural strength in the best-performing hybrid nanocomposite containing 1 phr of sepiolite and 1 phr of GNP (HNC-G1.0) increased by 61.65% to 76.46 MPa from 47.3 MPa (HNC-G0.0). In contrast, its flexural modulus reached 2668 MPa from HNC-G0.0 (1730 MPa), demonstrating substantial improvements. The impact strength also showed a notable 83% rise from HNC-G0.0 (252.97 J/m) to 463.18 J/m (HNC-G1.0). Despite these mechanical enhancements, Thermo Gravimetric Analysis (TGA) demonstrated the thermal stability of the nanocomposites. At the same time, Differential Scanning Calorimetry (DSC) confirmed that the melting temperature remained stable, ensuring consistent processing conditions. This innovative research paves the way for advanced applications of rPET, particularly in the automotive industry. It marks a significant advancement in polymer science, promoting sustainable solutions and high-performance hybrid nanocomposites.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of SrTiO3−Tween80 reinforced biological poly-3-hydroxyalkanoate composite film and its proton permeability","authors":"Nur Amirah Faizal, K. A. Ishak, Mohamad Suffian Mohamad Annuar","doi":"10.1177/08927057241259746","DOIUrl":"https://doi.org/10.1177/08927057241259746","url":null,"abstract":"Flexile composite film of Poly-3-hydroxyalkanoate−Perovskite−Tween 80 (PHA-PV-T80) as a green membrane film was prepared. Pristine medium-chain-length poly-3-hydroxyalkanoate (mcl-PHA), produced through bacterial fermentation, was blended with different concentrations of perovskite (PV) and Tween 80 (T80) ranging from 0.01 to 0.0025 % ( w/v) and 1.5 – 4.5 % ( w/v), respectively, to fabricate the composite films. Ultrasound irradiation was applied to aid homogenous dispersion of blend solution prior to film casting. The composite film exhibited improved physical properties compared to the neat mcl-PHA film, which is more susceptible to ripping upon peeling. Thorough distribution of perovskite, facilitated by T80, were responsible for promoting increased side-chain crystallization, resulting in the formation of extensive rigid regions within the PHA matrix, which significantly improved proton permeability of the composite film. PHA composites showed higher proton flux (>3.5 × 10−4 mol.min−1.cm−2) compared to neat PHA (1.03 × 10−4 mol.min−1.cm−2) and commercial Nafion (1.22 × 10−4 mol.min−1.cm−2). The relationship between physicochemical attributes and proton flux characteristics of the composite films were discussed with regards to their potential application as proton exchange membrane.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of additives on the performance of extruded polymer composites: A comprehensive review","authors":"G. Sakthi Balan, S. Aravind Raj","doi":"10.1177/08927057241261314","DOIUrl":"https://doi.org/10.1177/08927057241261314","url":null,"abstract":"The objective of this review is to provide a precise description of the property changes that occur as a result of additive incorporation into polymer filaments. It comprises of the maximum allowable amount of additives that can be incorporated into polymers to enhance properties effectively, and the favorable and unfavorable consequences of additive incorporation in the parts produced by three dimensional printing by material extrusion. This evaluation classifies the incorporation of additives according to their necessary characteristics, including mechanical, electrical, thermal, and biomedical properties. Additionally, the study provides an in-depth analysis of the difficulties encountered throughout the additively fabricated filaments’ fabrication and during the three dimensional printing through material extrusion processes. In addition, the reasons for the deterioration of the material’s properties subsequent to the incorporation of compounds are elucidated. The study incorporated state-of-the-art literature to demonstrate the effects of incorporating additives derived from natural sources, such as discarded coffee grounds, wood flour, and biochar obtained from woody sources, cork powders, and lignin obtained from diverse plant sources. Additives used in polymers have notable impacts on the material’s behaviors, with certain additives enhancing these properties while others degrade the core characteristics. The selection of the additive type and the level of inclusion significantly influence the properties of the polymer composites. Moreover, the extrusion of customized filaments often encounters numerous challenges. However, by employing optimum printing parameters, it is possible to successfully print parts with minimal defects.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141339529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anticancer effect of Poly(N-vinyl pyrrolidone/chitosan/silver nanoparticles) nanocomposite synthesized by gamma radiation","authors":"Mohamed Ali Hassan, Mohamed S El-Deap, Ahmed Mahmoud Farag, Ibrahim Y. Abdelrahman, A. M. Abdel-Ghaffar","doi":"10.1177/08927057241259757","DOIUrl":"https://doi.org/10.1177/08927057241259757","url":null,"abstract":"Poly(N-vinyl pyrrolidone/chitosan/Ag nanoparticles) Poly (NVP/CS/AgNPs) nanocomposite was prepared by using gamma radiation. Silver nitrate was reduced to AgNPs by using gamma radiation to create highly stable, and evenly dispersed AgNPs within the nanocomposite network. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX) analysis are used to identify the characteristics of the prepared nanocomposite. The newly biocompatible Poly (NVP/CS/AgNPs) nanocomposite prepared by the gamma radiation is used as a model for an anticancer drug. Regarding its application on cancer cells, the results of the outcome demonstrate that the Poly (NVP/CS/AgNPs) nanocomposite significantly decreased the HepG2 cell viability from 100% to 1.5% after 72 hours using the concentration of 30 µg/ml, and the IC50 recorded 10.024 µg/ml at 72 hours of treatment. Moreover, the treatment with the Poly (NVP/CS/AgNPs) nanocomposite increases the cytotoxicity against cancer cells at different concentrations 30 µg/ml and 3.75 µg/ml at different time intervals of 24, 48, and 72 hours. The percent change of MDA, and H2O2 increased in treated cells, and was recorded at 127%, and 69%, respectively, but the CAT activity decreased by 47% in comparison with untreated cells. Relative gene expression was performed in the control, and treated group. The gene expression revealed that the Bcl-2 gene expression as the anti-apoptotic gene was downregulated in the treated group. In contrast, the apoptotic gene BAX was upregulated, and reached 7383-fold in the group treated. The Bax/ Bcl2 ratio reached 625.19 which is an excellent indicator of apoptosis. Using western blot, the protein expression increased for Caspse-3 and P53 recorded at 203% and 109%, respectively. In conclusion, Poly (NVP/CS/AgNPs) nanocomposite has a potent effect on killing cancer cells.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, electrical and magnetoresistance feature of PP+Fe3O4 + Multi-walled carbon nanotubes nano-hybrid based polymer nanocomposite","authors":"F. V. Hajiyeva, H. Shirinova, SG Alizada, MA Ramazanov","doi":"10.1177/08927057241254984","DOIUrl":"https://doi.org/10.1177/08927057241254984","url":null,"abstract":"This work studied the role of the iron oxide and MWCNT in a change of the electrophysical properties of PP + Fe3O4 + MWCNT nanocomposite to evaluate the potential of these nanocomposites as magnetic field sensors and EMI materials. The morphology of the obtained nanocomposites was studied with a scanning electron microscope and investigated that the sizes of both magnetite nanoparticles and carbon nanotubes stay stable during the three-phase nanocomposite formation. In addition, the X-ray diffraction method revealed that MWCNT plays an essential role in the ordered structure-formation of a polymer nanocomposite more than iron oxide nanoparticles. Dielectric properties of the PP + Fe3O4 nanocomposite were studied. Both dielectric permeability and dielectric losses of PP+MWCNT+Fe3O4 nanocomposites were enhanced. The dielectric permeability of the nanocomposite increased due to the interphase polarization, which in turn related to the formation of ordered structure caused the partial arrangement of carbon nanotubes in the polymer. Furthermore, the study showed that the negative magnetoresistance effect of PP+MWCNT+Fe3O4 nanocomposites is more dependent on the amount of Fe3O4 nanoparticles than that of MWCNT, which explained by the spin polarization of Fe3O4 nanoparticles at room temperature. In this research, the PP+5%Fe3O4+1%MWCNT nanocomposites were considered to be an effective material for magnetic field sensors and EMI shielding.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-approach synthesis of functionalized graphene oxide as reinforcement for polyethylene: Make a strong interaction","authors":"Mustafa Azizi, M. Elhamnia, G. Hashemi Motlagh","doi":"10.1177/08927057241259751","DOIUrl":"https://doi.org/10.1177/08927057241259751","url":null,"abstract":"Nanoparticles need to be well dispersed in a polymer matrix to employ their advantages. Their agglomeration may cause defects and stress concentrations, deteriorating the final properties of polymer/graphene nanocomposite. Here graphene oxide (GO) was functionalized in several ways to improve its interaction with polyethylene and dispersion. Polyethylene-grafted maleic anhydride (PE-g-MA) with strong polar groups was used as the matrix to consider a high potential of enhanced interaction with the GO nanoparticles and therefore obtain a high-performance polyolefin composite. First, GO was produced by modified Hammer’s method from graphite. The GO was aminated by phenylene diamine and named FGO. Also GO was reduced chemically to obtain CRGO and thermally to obtain TRGO and then the recent ones were amino functionalized, named FCRGO and FTRGO, respectively. In another route GO was first amino functionalized and then was reduced chemically and named FCRGO+. The synthesized nanoparticles were characterized by visual tests, FTIR, XRD, SEM, and TGA analysis. Subsequently, the study investigates the fabrication of nanocomposites using these nanoparticles at 2 wt% in the PE-g-MA matrix by solution-casting method. The nanocomposites were characterized by optical microscopy, tensile and rheometric tests, FTIR, DSC, and SEM analysis. Based on the results, FCRGO+ was identified as the optimum nanoparticle having better dispersion, improved interfacial interaction, and stronger mechanical properties. The GO functionalized nanocomposites showed up to 36% in tensile modulus, 56% in tensile strength and 70% in elongation at break as compared to those of GO nanocomposites without functionalization of GO.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonic and micrograph-based quantification of material characteristics for in-situ AFP composite structures","authors":"Yannick T. Schaefer, L. Raps, Ashley R. Chadwick","doi":"10.1177/08927057241261339","DOIUrl":"https://doi.org/10.1177/08927057241261339","url":null,"abstract":"Achieving the maximum potential of parts manufactured with in-situ consolidation thermoplastic Automated Fiber Placement without a final bulk consolidation is a challenging task. This is due partially to the continual development of the technology itself and partially due to material defects which are not fully removed during part manufacturing. In this paper, a methodology is presented for the evaluation of prepreg tape and laminate quality relevant to the manufacturing process. A novel approach is presented to quantify tape quality and the fiber volume content distribution, porosity, all of which are identified as significant influences on laminate quality. A new approach to ultrasonic testing is applied for quantitative porosity analysis promising advantages over conventional methods. Laminate porosity was successfully measured using the proposed pulse-echo ultrasonic attenuation method. The fiber content distribution from the tape used in testing shows characteristics interpreted as unfavorable for high quality in-situ AFP.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new semi-analytical approach for nonlinear electro-thermo-mechanical dynamic responses of FG-GPLRC shallow spherical caps and circular plates with porous core","authors":"H. Vu, Nhu Nam Pham, Tien Tu Bui, Minh Duc Vu, T. Nguyen","doi":"10.1177/08927057241259760","DOIUrl":"https://doi.org/10.1177/08927057241259760","url":null,"abstract":"The main aim of this paper is to analyze the nonlinear electro-thermo-mechanical dynamic buckling and vibration of third-order shear deformable circular plates and spherical caps with functionally graded graphene platelet reinforced composite (FG-GPLRC) coatings, piezoelectric layers, and porous core. The circular plates and spherical caps are assumed to be rested on the Pasternak visco-elastic foundation, and subjected to dynamic external pressure in the thermal environment. The total potential energy expression of structures is established using the Lagrange function. The Euler-Lagrange equations and Rayleigh dispassion functions are applied to obtain the motion equation of structures. This motion equation can be solved using the Runge-Kutta method to obtain the dynamic responses of circular plates and spherical caps. Significant discussions of the different effects of graphene distribution, graphene volume fraction, piezoelectric layers, porous core, and foundation parameters are presented through the investigated examples.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141368775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrospray coating of poly ether ether ketone (PEEK) dental implant material with Zein-CaSiO3 composite","authors":"Sama Abdulrazzaq Alwan, T. I. Hamad","doi":"10.1177/08927057241254309","DOIUrl":"https://doi.org/10.1177/08927057241254309","url":null,"abstract":"Dental implants, coated with materials, are strategically implanted in the bones, serving a vital function in accelerating healing and promoting bone regeneration in the vicinty of implants. Applying a polymer matrix as a coating material emerges as a promising approach for enhancing the properties of these implants. This research investigates the impact of Zein-CaSiO3 coating on PolyEtherEtherKetone (PEEK) implants using the electrospray technique. The study includes control PEEK disks and experimental groups with different coatings: Zein-CaSiO3, Zein, and CaSiO3. Characterization involved techniques such as atomic force microscopy to evaluate the surface topography of the composite coating, scanning electron microscopy (FE-SEM) was employed to analyze the morphology of surface, water contact angle, and adhesion test. Group 3 (PEEK coated with CaSiO3) exhibited the lowest water contact angle in comparison to the control group, Also there were present an increasing in adhesion strength to the substrate with the groups 1 (PEEK coated with zein-CaSiO3) and 2 (PEEK coated with zein) compared to Group 3. This study suggests that the electrospraying of (Zein-CaSiO3) coating on PEEK dental implants is a promising option for enhanced implant performance.","PeriodicalId":17446,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}