Hao Zhang , Yiwei Chen , Wenzhe Song , Congze Fan , Jing-hua Zheng , Zhongde Shan
{"title":"Wide-temperature-range mechanical properties and precision prediction of additively manufactured continuous glass fiber reinforced PEEK composites","authors":"Hao Zhang , Yiwei Chen , Wenzhe Song , Congze Fan , Jing-hua Zheng , Zhongde Shan","doi":"10.1016/j.compositesa.2025.109505","DOIUrl":"10.1016/j.compositesa.2025.109505","url":null,"abstract":"<div><div>Additive manufacturing of continuous fiber reinforced polymer composites enables precise fiber placement and design flexibility, positioning it as a key technology for aerospace and automotive component fabrication. Evaluating the composites mechanical behavior across a wide temperature range is crucial, since large variations in stiffness and strength at low or high service temperatures can undermine the reliability of aerospace or high-precision applications. In this study, continuous glass fiber reinforced poly-ether-ether-ketone Composites (CGF/PEEK) specimens fabricated by additive manufacturing were subjected to tensile, flexural and interlaminar shear tests over a wide temperature range from –100 °C to 250 °C. The failure mechanism and performance evolution with increasing temperature were revealed, with tensile strength dropping by 28.8 % and flexural strength by 70.5 % at 250 °C. A Co–kriging surrogate model integrating high–fidelity (HF) test data with low–fidelity (LF) simulation data was developed and it reduced the maximum prediction error to ± 5 % and improved accuracy by over 35 % in the glass transition temperature (<em>T<sub>g</sub></em>) region compared to traditional Kriging and Support Vector Regression (SVR). This study provides a foundation for the engineering deployment of CGF/PEEK components produced by additive manufacturing across a wide operational temperature range for aerospace applications.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109505"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiahuan Zhao , Guangheng Wang , Xiaolong Chen , Weiwei Li , Jing Zuo , Shaolong Zhong , Wenying Zhou
{"title":"Constructing c-Al2O3@PDA dual interlayers in Al/PVDF composites towards synergistic enhancement of dielectric properties and thermal conductivity","authors":"Jiahuan Zhao , Guangheng Wang , Xiaolong Chen , Weiwei Li , Jing Zuo , Shaolong Zhong , Wenying Zhou","doi":"10.1016/j.compositesa.2025.109541","DOIUrl":"10.1016/j.compositesa.2025.109541","url":null,"abstract":"<div><div>Percolating polymer composites present a high dielectric constant (<em>ε</em>) near the percolation threshold, but the unwished high dielectric loss and low breakdown strength (<em>E</em><sub>b</sub>) along with poor thermal conductivity (TC) inevitably accompanied badly hinder their applications. To achieve concurrently high <em>ε</em>, <em>E</em><sub>b</sub> and TC but low loss in raw aluminum (Al)/polyvinylidene fluoride (PVDF), the self-passivated amorphous alumina (Al<sub>2</sub>O<sub>3</sub>) shell onto Al core was first converted to crystalline one (c-Al<sub>2</sub>O<sub>3</sub>) and then encapsulated with a layer of polydopamine (PDA), and the c-Al<sub>2</sub>O<sub>3</sub>@PDA dual-shell’ impacts on dielectric properties and TC of PVDF composites were investigated. The results show that the Al@c-Al<sub>2</sub>O<sub>3</sub>@PDA/PVDF showcase simultaneously elevated <em>ε</em>, <em>E</em><sub>b</sub> and TC but much suppressed loss, which cannot be realized in pristine Al/PVDF composites. The multiple enhancements originate from three aspects: 1) the double-shell introduces additional interfaces and induces multiple intra and inter particles polarizations subsequently leading to evidently enhanced <em>ε</em>; 2) the dual-shell not only generates charge traps and impede carrier migration but also mitigate electric field distortion, resulting in low loss and high <em>E</em><sub>b</sub>; 3) the crystalline alumina shell alleviates phonon impedance mismatches and phonon state density and promotes interfacial phonon transport thus bolstering the TC. So, combining the c-Al<sub>2</sub>O<sub>3</sub> shell with PDA coating achieves synergistic optimization of high <em>ε</em>, <em>E</em><sub>b</sub> and TC coupled with low loss in the Al@c-Al<sub>2</sub>O<sub>3</sub>@PDA/PVDF composites, emerging appealing applications in electrical insulating fields.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109541"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mojtaba Haghgoo , Reza Ansari , Mohammad Kazem Hassanzadeh-Aghdam , Jamaloddin Jamali , Saeid Sahmani , Sung-Hwan Jang
{"title":"Ternary thermoresistive strain dependent nanocomposite for transverse mode analysis of conductors","authors":"Mojtaba Haghgoo , Reza Ansari , Mohammad Kazem Hassanzadeh-Aghdam , Jamaloddin Jamali , Saeid Sahmani , Sung-Hwan Jang","doi":"10.1016/j.compositesa.2025.109526","DOIUrl":"10.1016/j.compositesa.2025.109526","url":null,"abstract":"<div><div>A ternary carbon nanotube (CNT) carbon black (CB) nanocomposite is analyzed studying the synergistic effect between CNT and CB on electrical conductivity. The assessment of the thermoresistivity and piezoresistivity of the nanocomposite with dispersed nanofillers of different diameters and conductivity ranges is investigated. By considering CBs with CNTs in the developed network model, Monte Carlo simulation results correlate well with experimental data. The effects of barrier height, aspect ratio and transverse mode are investigated. To guarantee the convergence of piezoresistivity, the number of CNTs was selected larger than a threshold amount, and this enforced a modified calculation scheme using parallel rows of series resistors formed through conductors. Results indicate that the electrical resistance decreased with increased temperature with higher temperature coefficient of resistance producing more prominent drops in comparison with the polymer thermal expansion minor effect. On this basis, the center mechanism about improving the electrical properties of the composite were high intrinsic conductivity and large aspect ratio CNTs selected with small concentrations of CB nanoparticles. The results demonstrate that increasing the number of transverse modes enhances thermoresistivity by modifying tunneling resistance.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109526"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Interlaminar shear performances and failure mechanisms of 3D braided Janus hybrid composites","authors":"Qiujin Gu , Zhenzhen Quan , Jianyong Yu","doi":"10.1016/j.compositesa.2025.109470","DOIUrl":"10.1016/j.compositesa.2025.109470","url":null,"abstract":"<div><div>Delamination remains a huge challenge to the interlaminar hybrid composites which are very desirable in a variety of fields. 3D braided Janus hybrid composites present numerous potentials in enhancing the resistance to delamination, owing to the integral fabrication of their hybrid preforms. However, the interlaminar shear performances and failure mechanisms of 3D braided Janus hybrid composites require further investigation for its future application. In the current study, 3D braided Janus hybrid composites with two braiding angles (20° and 40°) were fabricated based on the 3D hybrid braiding technique and their interlaminar shear performances were studied by the short-beam shear (SBS) tests. The failure mechanism was analyzed based on the crack distribution characterized via the X-ray computed tomography (CT). Results showed that the energy absorption of “20°” serials was higher than that of “40°” serials. Furthermore, the “Janus” feature of the hybrid structure endows the specimens with a new design freedom. The “C” samples have better resistance to interlaminar shear damages than their “K” counterparts. The results are helpful for the design and fabrication of 3D braided hybrid composites with excellent interlaminar shear performances, and provide guidance for its future possible applications.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109470"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Junwei Yao , Qian Wang , Qingshan Shi , Chunxin Wang , Jingxia Liu , Ping Huang , Manli Yu , Xiaobao Xie
{"title":"Surface modification of layered double hydroxides nanocomposites with dopamine for pH-responsive delivery of tebuconazole to improve antifungal activity and biological safety","authors":"Junwei Yao , Qian Wang , Qingshan Shi , Chunxin Wang , Jingxia Liu , Ping Huang , Manli Yu , Xiaobao Xie","doi":"10.1016/j.compositesa.2025.109530","DOIUrl":"10.1016/j.compositesa.2025.109530","url":null,"abstract":"<div><div>The effectiveness of conventional fungicides is often limited by poor bioavailability and unacceptable toxicity. Owing to their high loading capacity, long-term validity, and anti-photodegradation, the pH-sensitive layered double hydroxides (LDHs) nanocomposites for controlled release of fungicide is a promising candidate in agricultural protection. As the interfacial regulated modifier, dopamine (DA) with bountiful phenolic hydroxyl group is an ideal synergistic agent to improve interaction with the target organisms. The DA modified tebuconazole (TEB)-LDHs nanocomposites was fabricated for enhancing the antifungal efficacy and biological safety. The cumulative release rates of TEB from TEB-LDHs and TEB-LDHs-DA nanocomposites indicated the pH-sensitive controlled release behavior with a higher cumulative release rate under acid condition. Based on the bioactivity assay, the TEB-LDHs-DA nanocomposites was endowed with a pH responsive stimulus nano-fungicide and exhibited a superior antifungal activity against <em>Fusarium pseudograminearum</em>, for improving delivery capability, inducing intracellular excessive reactive oxygen species, reducing membrane potential and inhibiting ergosterol biosynthesis. The biosafety assay suggested that DA grafted onto TEB-LDHs nanocomposites could effectively reduce the acute toxicity of TEB to zebrafish. Overall, these results demonstrated that DA successfully grafted onto TEB-LDHs nanocomposites was able to provide a nanocomposites platform for responsive stimulus strategy of crop disease control in cost-effective and ecological manner.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109530"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kui Wang , Lu Shen , Xiang Ji , Jiale Gong , Chenchen Cui , Jiahong Xie , Liang Hong
{"title":"Pyrogallol adhesion and mineralized bionic hybrid layer decorating UHMWPE fiber for enhancing the interfacial and mechanical properties","authors":"Kui Wang , Lu Shen , Xiang Ji , Jiale Gong , Chenchen Cui , Jiahong Xie , Liang Hong","doi":"10.1016/j.compositesa.2025.109528","DOIUrl":"10.1016/j.compositesa.2025.109528","url":null,"abstract":"<div><div>An organic–inorganic bionic hybrid layer was created to improve the interfacial and mechanical properties of ultrahigh-molecular-weight polyethylene (UHMWPE) fiber-reinforced epoxy (UHMWPE/Epoxy) composites by utilizing the adhesion of pyrogallol and the mineralization of Cu<sup>2+</sup> ions. The findings indicated that the effective application of the hybrid layer introduced a significant quantity of polar groups and inorganic Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> particles. Mineralization treatment remarkably increased the fiber’s surface energy from 20.64 mN/m to 31.24 mN/m, achieving 51 % improvement in wettability. The interfacial interactions between the organic–inorganic hybrid layer and epoxy resin were markedly enhanced, increasing the interfacial shear strength (IFSS) from 2.38 ± 0.28 MPa to 7.62 ± 0.74 MPa. Compared with the pristine composite, the modified UHMWPE/Epoxy exhibited up to 63 %, 69 %, and 113 % improvement in mechanical performance, interlaminar shear strength (ILSS), and transverse fiber bundle tension (TFBT), respectively. Upon application of an external force, the bionic hybrid layer facilitated numerous deflections and intricate crack paths at the interface. As a result, a uniform and swift force transmission was established from the epoxy resin to the fiber.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109528"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liangliang Qi , Keqing Wang , Yuhang He , Bowen Gong , Zhuangzhuang Cao , Peiyu Hu , Jianfeng Shi
{"title":"Effect of service temperatures on the interfacial bonding properties of PA11–CFRP in Type IV high–pressure hydrogen storage cylinders with different surface treatments","authors":"Liangliang Qi , Keqing Wang , Yuhang He , Bowen Gong , Zhuangzhuang Cao , Peiyu Hu , Jianfeng Shi","doi":"10.1016/j.compositesa.2025.109537","DOIUrl":"10.1016/j.compositesa.2025.109537","url":null,"abstract":"<div><div>One of the major challenges for Type IV high–pressure hydrogen storage cylinders is the susceptibility of the plastic liner to collapse, where the interfacial properties between the liner and outer carbon fibre reinforced polymer (CFRP) play a critical role in preventing the liner from becoming unstable. However, variations in the service environment, particularly temperature fluctuations, can significantly compromise the stability of the interface between the liner and CFRP, thereby weakening their coordinated deformation during depressurization. To address this issue, nanosecond pulsed laser, atmospheric–pressure plasma, and their synergistic treatment were employed to modify the polyamide 11 (PA11) surface, and the effects of service temperature on the interfacial bonding properties of PA11–CFRP with different surface treatments were systematically investigated. The results revealed that the interfacial bonding properties were highly sensitive to temperature: under elevated temperatures, interface stiffness decreased while toughness increased, whereas at low temperatures, stiffness increased but toughness was insufficient. With increasing cycles of alternating thermal cycling, the interfacial bonding strength gradually deteriorated; untreated specimens approached failure after 1000 cycles, while synergistically treated specimens exhibited the strongest durability. Combined with microscopic analysis, the synergistic treatment integrated laser–induced roughening with plasma–induced activation, providing a dual enhancement mechanism of mechanical interlocking and chemical bonding. It inhibits excessive molecular relaxation and alleviates residual stress accumulation, thereby significantly improving interfacial durability and reliability under thermal environments. This study provides theoretical insights into the interfacial enhancement of Type IV hydrogen storage cylinders under service temperature and offers valuable guidance for improving their safety and long–term reliability.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109537"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhancing accuracy in CFRP forming simulations: investigating the impact of variable friction coefficients using finite element method","authors":"Manseok Yoon","doi":"10.1016/j.compositesa.2025.109457","DOIUrl":"10.1016/j.compositesa.2025.109457","url":null,"abstract":"<div><div>In the industrial field, preform forming simulations for Carbon Fiber Reinforced Plastic (CFRP) manufacturing generally assume that friction coefficients do not significantly affect simulation results and therefore use constant approximate values. However, there is no evidence to support this assumption. To verify its validity, a preliminary study was conducted. Previous research has reported that the difference between dynamic and static friction coefficients can influence simulations. However, when friction coefficients are assumed to be constant, this difference remains around 0.02–0.03 for any type of fabric, suggesting that the assumption made in the industry may be reasonable.</div><div>In actual forming processes, however, variations in load during draping and forming alter the actual contact area between fabric layers or between the fabric and the mold, leading to changes in friction coefficients. Consequently, the difference between static and dynamic friction coefficients can also vary and may become significant enough to affect simulation results. Therefore, verification of this effect was necessary. This study investigates the influence of friction coefficient variability on the difference between static and dynamic friction coefficients and its impact on forming simulations.</div><div>When variable friction coefficients were applied, the difference between static and dynamic friction coefficients increased, leading to a threefold increase in fabric deflection during draping, from 2.57 mm to 9.30 mm. Additionally, the maximum shear angle increased by approximately 24.5 % in 1st ply, while the changes were relatively smaller at 6.5 % in 6th ply and 4.1 % in 4th ply. Comparisons with actual forming results confirmed that incorporating variable friction coefficients improved prediction accuracy, particularly by 67.3 % in deflection and 50.0 % in shear angle.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109457"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Robin Valmalette, Cédric Bellis, Christian Hochard, Noël Lahellec
{"title":"Robust identification of carbon fibers and polymer matrix properties in composites from simple tensile tests","authors":"Robin Valmalette, Cédric Bellis, Christian Hochard, Noël Lahellec","doi":"10.1016/j.compositesa.2025.109452","DOIUrl":"10.1016/j.compositesa.2025.109452","url":null,"abstract":"<div><div>The behavior of constituents in carbon fiber-reinforced plastic composite is often challenging to measure. Carbon fibers typically exhibit transversely isotropic elastic behavior, yet their parameters are challenging to measure directly due to their small diameter. Likewise, matrix suppliers often provide only elastic parameters, and neat matrix samples may be unavailable or may behave differently in isolation than within the composite. To access these properties, an alternative is to identify constituent properties from tests at the macroscopic level on the composite and inverse homogenization. This work presents a methodology for unidirectional composites that combines a simple experimental protocol with an inverse identification procedure to determine the anisotropic elastic parameters of carbon fibers and the viscoelastic behavior of the matrix. Particular emphasis is placed on designing straightforward tests and making methodological choices that enhance robustness, such as representative volume element selection guided by sensitivity analysis. Two complementary validation strategies are implemented: (i) uncertainty quantification of the identified fiber parameters using a Monte Carlo procedure with noisy inputs, and (ii) experimental validation of the viscoelastic matrix model by predicting the creep response of a laminate configuration not used in the identification and comparing it with experimental data. The approach is applied to a prototype PAEK/carbon HS 194 gsm composite. The uncertainties on the reconstructed fiber parameters are found to be satisfactory given the simplicity of the input measurements. The identified matrix model accurately reproduces the response of the validation laminate.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109452"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145623431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Mathel , Camille Rouault , Darren Martin , Peter Halley , Luigi-Jules Vandi
{"title":"Synergistic effects of PHAs and biomass fillers on the thermal, rheological, and mechanical properties of biocomposites","authors":"Vincent Mathel , Camille Rouault , Darren Martin , Peter Halley , Luigi-Jules Vandi","doi":"10.1016/j.compositesa.2025.109477","DOIUrl":"10.1016/j.compositesa.2025.109477","url":null,"abstract":"<div><div>This study examines polyhydroxyalkanoate (PHA)-based biocomposites incorporating locally sourced, biomass-derived fillers as a sustainable alternative to conventional plastics. While environmentally advantageous, optimisation of their mechanical properties and processability remains challenging due to the complex interplay of factors influencing biocomposite behaviour. Various commercial PHA polymers with different types of comonomer and content, were compounded with Australian lignocellulosic biofillers, wood, macadamia, and walnut shells, characterised by distinct cellulose and lignin contents. Gel permeation chromatography assessed PHA molecular weight changes post-processing, indicating thermo-mechanical degradation as a function of biofillers. Differential scanning calorimetry revealed correlations between biofiller cellulose content and crystallisation behaviour, glass transition temperature, and crystal perfection, which aligned with tensile strength and elastic modulus trends. The degree of crystallinity in neat PHAs emerged as a key determinant of mechanical performance in biocomposites. Oscillatory rheometry revealed that neat poly(3-hydroxybutyrate-co-4-hydroxybutyrate) exhibited higher viscosity, while poly(3-hydroxybutyrate-co-hexanoate) showed lower viscosity, independent of comonomer content and molecular weight. Rheological analysis also showed viscosity correlated with biofiller cellulose content at low shear rates and with PHA molecular weight at higher shear rates. Overall, this work provides a comprehensive platform and guidance for the development of PHA-based biocomposites.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109477"},"PeriodicalIF":8.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}