Journal of Thermoplastic Composite Materials最新文献

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Triple-network synergistically enhanced polyurethane-based composite phase change materials for multi-source driven wearable thermal management 三网络协同增强聚氨酯基复合相变材料,用于多源驱动的可穿戴热管理
Journal of Thermoplastic Composite Materials Pub Date : 2025-12-19 DOI: 10.1177/08927057251409698
Xinshuai Yan, Jianguo Duan, Li Yang, Kun Lei, Qihui Yu
{"title":"Triple-network synergistically enhanced polyurethane-based composite phase change materials for multi-source driven wearable thermal management","authors":"Xinshuai Yan, Jianguo Duan, Li Yang, Kun Lei, Qihui Yu","doi":"10.1177/08927057251409698","DOIUrl":"https://doi.org/10.1177/08927057251409698","url":null,"abstract":"To address the growing demand for efficient energy conversion and storage materials in wearable personal thermal management (PTM), this study proposes a cooperative strategy of “molecular interface engineering + multi-scale structural design” to develop a flexible composite phase change material (PU-rG/Cu/C-PW) with a triple-network enhanced architecture. Using polyurethane foam (PU) as a scaffold, a uniform coating of reduced graphene oxide (rGO), copper nanowires (CuNWs), and carbon nanotubes (CNTs) was constructed via a cyclic impregnation-gradient reduction process, forming a “hard core-soft shell” porous micro/nano thermal conduction network. Paraffin wax (PW) was then stably encapsulated into the framework through vacuum melt infiltration. The resulting composite exhibits outstanding comprehensive properties: the mechanical strength of 128.44 kPa, the energy storage density of 159.81 J·g −1 , and the thermal conductivity of 0.702 W·m −1 K −1 , which is 331% higher than that of PW. The material maintains high flexibility and thermal reliability over 100 melting-solidification cycles. Moreover, under the conditions of 1.5 kW·m −2 simulated solar radiation and 10 V voltage, it demonstrated outstanding photothermal and electrothermal conversion efficiencies, reaching as high as 87.8% and 80.4% respectively. and has excellent multi-source drive thermal energy conversion capabilities. This work provides a novel material solution to overcome the long-standing challenges of leakage, low thermal conductivity, and poor mechanical strength in phase change materials (PCM), demonstrating great potential for applications in wearable electronics, solar energy utilization, and multi-source driven thermal management.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147917756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simple construction of PVA hydrogels based on dehydration drying method via polydopamine-modified graphene nanocomposites 基于脱水干燥法的聚多巴胺修饰石墨烯纳米复合材料聚乙烯醇水凝胶的简单构建
Journal of Thermoplastic Composite Materials Pub Date : 2025-09-23 DOI: 10.1177/08927057251382848
Haiyan Feng, Jiawei Li, Xubing Wei, Kai Chen, Xinyue Zhang, Cunao Feng, Xiaowei Li, Dekun Zhang
{"title":"Simple construction of PVA hydrogels based on dehydration drying method via polydopamine-modified graphene nanocomposites","authors":"Haiyan Feng, Jiawei Li, Xubing Wei, Kai Chen, Xinyue Zhang, Cunao Feng, Xiaowei Li, Dekun Zhang","doi":"10.1177/08927057251382848","DOIUrl":"https://doi.org/10.1177/08927057251382848","url":null,"abstract":"The traditional freeze-drying method for preparing polyvinyl alcohol (PVA) hydrogels involves a complex process. Conventional one-step drying processes for preparing high-strength PVA hydrogels often yield materials with inadequate mechanical properties and insufficient lubrication. To overcome these limitations, this study introduces polydopamine-modified graphene as a reinforcing nanofiller within PVA hydrogels. The surface modification significantly improves graphene dispersion in the hydrogel matrix, leading to substantial enhancements in mechanical performance. Incorporating just 0.5 wt% polydopamine-modified graphene results in a remarkable 200% increase in tensile strength and a 62% improvement in Young’s modulus compared to unmodified PVA hydrogels. Furthermore, subsequent treatment with a straightforward deep eutectic solvent (DES) and UV-initiated crosslinking synergistically boosts the hydrogel’s overall strength by 500% and reduces its coefficient of friction by 50%, significantly enhancing lubrication properties. This combined strategy of nanomaterial reinforcement and solvent/UV processing presents a facile and effective approach for fabricating robust, high-strength PVA hydrogels with excellent lubricity, holding promise for demanding biomedical and engineering applications.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"39 4","pages":"1883-1899"},"PeriodicalIF":0.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An economical surface treatment for improving resistance welding strength of carbon fiber/epoxy composites 一种提高碳纤维/环氧复合材料耐焊强度的经济表面处理方法
Journal of Thermoplastic Composite Materials Pub Date : 2025-07-30 DOI: 10.1177/08927057251361023
Pinzhen Chen
{"title":"An economical surface treatment for improving resistance welding strength of carbon fiber/epoxy composites","authors":"Pinzhen Chen","doi":"10.1177/08927057251361023","DOIUrl":"https://doi.org/10.1177/08927057251361023","url":null,"abstract":"This study proposes an acid-etching surface treatment technology for treating the surface of carbon fiber/epoxy composites (CF/EP) to improve their physical and chemical properties, thereby achieving good adhesion with thermoplastic resins and high-quality resistance welding of CF/EP. The research shows that treating the CF/EP surface with concentrated sulfuric acid at 50°C for 45 minutes can significantly improve the single lap shear strength (LSS) of the CF/EP welding joint to 21.47 ± 1.2 MPa, which is 163.11% ± 14% higher than the LSS of the untreated sample. The acid etching surface treatment technology proposed in this paper is low-cost, simple to operate, and easy to replicate, combining innovation, feasibility, and economy. By analyzing the surface morphology, wettability, and chemical groups of the surface-treated samples, it can be seen that acid-etching treatment at an appropriate temperature and for a reasonable time can increase the surface roughness of CF/EP and introduce oxygen-containing chemical groups to the CF/EP surface, enhancing the wettability of the CF/EP surface and thereby improving the physical embedding and chemical bonding capabilities of the CF/EP surface.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"39 3","pages":"1095-1135"},"PeriodicalIF":0.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147914840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effects of moisture and temperature on shear strength of resistance welded joints of CF/PEEK composites 湿度和温度对CF/PEEK复合材料焊接接头抗剪强度的影响
Journal of Thermoplastic Composite Materials Pub Date : 2025-06-09 DOI: 10.1177/08927057251344261
Chengjie Hu, Siyuan Gui, Renxin Xu, Weimin Wang, Zhengyi Fu, Wei Ji
{"title":"Effects of moisture and temperature on shear strength of resistance welded joints of CF/PEEK composites","authors":"Chengjie Hu, Siyuan Gui, Renxin Xu, Weimin Wang, Zhengyi Fu, Wei Ji","doi":"10.1177/08927057251344261","DOIUrl":"https://doi.org/10.1177/08927057251344261","url":null,"abstract":"In this study, aluminum nitride (AlN) modified carbon fiber heating elements (HE) were used to connect carbon fiber reinforced poly-ether-ether-ketone (CF/PEEK) composites by resistance welding. The effects of AlN content and environmental conditions on the lap shear strength (LSS) of resistance welding composites were investigated by preparing welded joints with different AlN content. The results show that the LSS of the welded joint increases rapidly with the increase of AlN content. When the content of AlN is 5 wt.%, the maximum strength reaches 30.63 MPa. The welded joints were then placed in room temperature (25°C, 50% relative humidity (RH)) and artificial aging chamber (85°C, 90%RH) for 28 days, respectively, and tested in the temperature range of −30°C to 145°C. It is found that with the increase of test temperature, the LSS under the two environmental conditions shows a decreasing trend. High temperature and moisture absorption will have a superimposed negative impact on the LSS of the welded joint. At 145°C, the strength of the sample under elevated temperature wet (ETW) environment is the lowest, which is 21.61 MPa. The SEM analysis of the fracture surface of the joint shows that the main failure mechanism of the joint is the cohesive failure of HE. The main reasons for the degradation of interface bonding properties are wet heat aging and high temperature environment.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"39 1","pages":"323-343"},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Flexible PW/PU@CuNWs-MXene composite phase change materials with high thermostability for superior solar-thermal energy storage 具有高热稳定性的柔性PW/PU@CuNWs-MXene复合相变材料,用于优越的太阳能热能储存
Journal of Thermoplastic Composite Materials Pub Date : 2025-05-21 DOI: 10.1177/08927057251344279
Li Yang, Xinshuai Yan, Jianguo Duan, Kun Lei, Yaxiong Wang, Jianguo Cheng
{"title":"Flexible PW/PU@CuNWs-MXene composite phase change materials with high thermostability for superior solar-thermal energy storage","authors":"Li Yang, Xinshuai Yan, Jianguo Duan, Kun Lei, Yaxiong Wang, Jianguo Cheng","doi":"10.1177/08927057251344279","DOIUrl":"https://doi.org/10.1177/08927057251344279","url":null,"abstract":"Phase change materials (PCM) possess the issues of leakage, low thermal conductivity, lack of rigidity and poor photo thermal conversion ability. To overcome these challenges, we have successfully designed and prepared flexible PW/PU/CuNWs/MXene (PPCuM) composite phase change materials with high thermal conductivity by solution blending and vacuum impregnation by using polyurethane (PU), one-dimensional copper nanowires (CuNWs) as high thermal conductivity, and two-dimensional transition metal carbide/nitride (MXene) as fillers. Furthermore, PU based PCM is developed by adding MXene at different weight fractions and the influence of MXene content on PPCuM properties was studied. As expected, benefiting from the high aspect ratio and strong capillary force of the MXene as well as the interfacial interaction between the PCM molecule and MXene, the resulting PPCuM exhibit a large thermal conductivity (0.705 W·m −1 ·K −1 ), which is 332.5% higher than that of pure PW, high latent heat (155.42 J·g −1 ), mechanical strength reaches 81.83 KPa, and are form-stable upon heating up to 75°C. The solar simulator and thermal conductivity demonstrated a superior photo-thermal conversion capability and thermal networks for the developed PU based composite sample at 83.3 wt% of MXene. At the same time, MXene effectively improved the photo-thermal conversion capacity (91.35%) and heat transfer rate (2.91 J·s −1 ) of PPCuM, which was further confirmed by the surface temperature distribution results. In addition, PPCuM has excellent photo-thermal conversion efficiency, good chemical compatibility, crystallization properties, and acceptable thermal stability.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"38 12","pages":"4618-4639"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Simulating induction heating of fabric based thermoplastic composites using measured electrical conductivities 利用测得的电导率模拟织物基热塑性复合材料的感应加热
Journal of Thermoplastic Composite Materials Pub Date : 2024-06-04 DOI: 10.1177/08927057241255886
Sebastiaan van den Berg, M. Luckabauer, Sebastiaan Wijskamp, R. Akkerman
{"title":"Simulating induction heating of fabric based thermoplastic composites using measured electrical conductivities","authors":"Sebastiaan van den Berg, M. Luckabauer, Sebastiaan Wijskamp, R. Akkerman","doi":"10.1177/08927057241255886","DOIUrl":"https://doi.org/10.1177/08927057241255886","url":null,"abstract":"A novel method for defining the measured electrical conductivity of CFRTP in induction heating simulations is presented. This method considers the electrical conductivity’s orientation dependence and accurately predicts electromagnetic and transient temperature fields. The study demonstrates that temperature predictions using the present electrical conductivity model are in good agreement with the experiments, and that it yields improved transient temperature field predictions compared to the other electrical conductivity models.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141267640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Driving towards sustainability: A review of natural fiber reinforced polymer composites for eco-friendly automotive light-weighting 推动可持续发展:用于环保型汽车轻量化的天然纤维增强聚合物复合材料综述
Journal of Thermoplastic Composite Materials Pub Date : 2024-05-17 DOI: 10.1177/08927057241254324
Sifiso John Skosana, Caroline Khoathane, Thomas Malwela
{"title":"Driving towards sustainability: A review of natural fiber reinforced polymer composites for eco-friendly automotive light-weighting","authors":"Sifiso John Skosana, Caroline Khoathane, Thomas Malwela","doi":"10.1177/08927057241254324","DOIUrl":"https://doi.org/10.1177/08927057241254324","url":null,"abstract":"The automotive industry stands at a critical juncture, compelled by the imperative of sustainability to seek innovative materials for eco-friendly light-weighting. Natural fiber reinforced polymer composites (NFRPCs) have gained popularity due to their environmentally friendly nature and excellent engineering capabilities. This review paper comprehensively examines the landscape of NFRPCs in the context of automotive applications. Beginning with an overview of the ecological urgency and regulatory framework driving sustainable automotive materials, the review navigates through key advancements in NFRPC technology. The paper delineates the diverse array of natural fibers employed as reinforcements, elucidating their intrinsic properties, sources, and processing considerations. Concurrently, an in-depth analysis of various polymer matrices showcases their compatibility with different fiber types, emphasizing the critical interplay between fiber and matrix for optimal composite performance. A pivotal facet of this review manuscript lies in the rigorous evaluation of NFRPC performance across an array of metrics, including mechanical, thermal, and environmental considerations. Studies examining the interfacial interactions between natural fibers and polymers, as well as enhancements through additives and treatments, are critically assessed. Environmental and economic considerations are paramount in the quest for sustainable automotive materials. While economic evaluations delve into the viability and cost-effectiveness of widespread adoption, life cycle assessments and environmental impact analyses are evaluated to estimate the ecological footprint of NFRPCs. The paper also surveys current trends and prospects, offering insights into forthcoming innovations and directions for research. Therefore, this review article consolidates a comprehensive body of knowledge on NFRPCs for eco-friendly automotive light-weighting. By synthesizing findings from diverse studies, it provides a holistic perspective on the potential, challenges, and future trajectory of NFRPCs in the automotive sector.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"63 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140964787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physicochemical and antimicrobial characteristics of polypropylene-based nanocomposite containing SiO2-Ag nanoparticles prepared by gamma irradiation 伽马辐照法制备的含 SiO2-Ag 纳米粒子的聚丙烯基纳米复合材料的理化和抗菌特性
Journal of Thermoplastic Composite Materials Pub Date : 2024-05-15 DOI: 10.1177/08927057241255013
E. Fathy, Sobhy S. Abdel-Fatah, M. Bekhit
{"title":"Physicochemical and antimicrobial characteristics of polypropylene-based nanocomposite containing SiO2-Ag nanoparticles prepared by gamma irradiation","authors":"E. Fathy, Sobhy S. Abdel-Fatah, M. Bekhit","doi":"10.1177/08927057241255013","DOIUrl":"https://doi.org/10.1177/08927057241255013","url":null,"abstract":"This article evaluates the physicochemical and antimicrobial properties when silver-coated silica (SiO2-Ag) nanoparticles as active nanofiller are incorporated into the polypropylene (PP) thermoplastic matrix. The silica (SiO2) nanoparticles were prepared by precipitation method using sodium silicate. After that, silver-coated silica (SiO2-Ag) nanoparticles were synthesized by gamma radiation technique. X-ray diffraction (XRD), Infrared spectroscopy analysis (FTIR) and Transmission electron microscopy (TEM) analysis clarified the formation of SiO2-Ag nanoparticles. SiO2-Ag nanoparticles has a particle size with an average of 70 nm. The melt mixing procedure operated to fabricate PP thermoplastic nanocomposites with various ratios of 1.0, 2.0, and 3.0 part per hundred resin (phr) of the SiO2-Ag nanoparticles. To examine the effect of ionizing radiation on the prepared PP/SiO2-Ag nanocomposites, the samples were exposed to 20 kGy of gamma-irradiation. FTIR, XRD, mechanical analysis, thermogravimetric analysis (TGA), and scanning electron microscope (SEM) were utilized to characterize the physico-chemical alterations of the PP when loaded with SiO2-Ag nanoparticles. It is found that PP/1.0 phr SiO2-Ag nanocomposite revealed superior physico-chemical characteristics than the other two components. The irradiated specimens revealed superior tensile strength (TS) and elastic modulus (EM) over unirradiated ones, whereas inverse effects were predominant in case elongation at break (E%). Tmax of the native PP increased from 335°C to nearly 370°C of PP/1.0 phr SiO2-Ag nanocomposite. It is established that the fabricated PP/SiO2-Ag nanocomposites exhibited potent antimicrobial activity and can be a good candidate for food packaging applications.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"138 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140976830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of titanium dioxide nanorod (TNr)@SiO 2 with low photocatalytic effect and high UV resistance in poly(vinyl chloride) film 低光催化效果、高抗紫外性能的二氧化钛纳米棒(TNr)@ sio2在聚氯乙烯薄膜中的应用
Journal of Thermoplastic Composite Materials Pub Date : 2024-04-05 DOI: 10.1177/08927057241241507
Jianhao Cheng, Chen Shi, Yubing Dong, Jian Han
{"title":"Application of titanium dioxide nanorod (TNr)@SiO <sub>2</sub> with low photocatalytic effect and high UV resistance in poly(vinyl chloride) film","authors":"Jianhao Cheng, Chen Shi, Yubing Dong, Jian Han","doi":"10.1177/08927057241241507","DOIUrl":"https://doi.org/10.1177/08927057241241507","url":null,"abstract":"Ultraviolet (UV) radiation has a detrimental effect on the outdoor lifetime of PVC film materials. TiO 2 nanoparticles, as commonly used UV absorbers, still suffer from poor transparency, high photocatalytic effect, and poor dispersion in PVC matrix. To mitigate these effects effectively, titanium dioxide nanorod @ silicon dioxide (TNr@SiO 2 ) was synthesized and used as an anti-UV aging agent for polyvinyl chloride (PVC). The agglomeration effects of TiO 2 nanoparticles in PVC films were solved by synthesizing TNr, and the catalytic effects of TiO 2 was reduced by growing SiO 2 on the TNr surface. Scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and UV-visible spectroscopy were utilized to demonstrate the excellent dispersion and low photocatalytic effects of the synthesized TNr@SiO 2 . Compared with pure PVC film, the color change of TNr@SiO 2 /PVC composite film is not evident after 800h of UV aging, and the retention of mechanical properties were 93.94%. Compared with TiO 2 /PVC, TNr@SiO 2 /PVC composite film has better transparency. Results show that TNr@SiO 2 can maintain the properties of PVC better because the electrons of TNr@SiO 2 are excited to form a positively charged hole after the absorption of UV light, and then the hole electron pairs are recombined and converted into thermal energy, which improves the durability of PVC. Therefore, this highly transparent TNr@SiO 2 /PVC composite film with low photocatalytic activity and high UV resistance will soon be applied in large-scale industrial production.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"38 1","pages":"74-92"},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147896745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Influence of surface treatments and addition of a reactive agent on the properties of PLA/flax and PLA/bamboo composites 表面处理和添加反应剂对聚乳酸/亚麻和聚乳酸/竹复合材料性能的影响
Journal of Thermoplastic Composite Materials Pub Date : 2024-02-14 DOI: 10.1177/08927057241231733
Hervé Nlandu-Mayamba, A. Taguet, Didier Perrin, Sébastien Joannès, Florence Delor-Jestin, H. Askanian, J. Lopez‐Cuesta
{"title":"Influence of surface treatments and addition of a reactive agent on the properties of PLA/flax and PLA/bamboo composites","authors":"Hervé Nlandu-Mayamba, A. Taguet, Didier Perrin, Sébastien Joannès, Florence Delor-Jestin, H. Askanian, J. Lopez‐Cuesta","doi":"10.1177/08927057241231733","DOIUrl":"https://doi.org/10.1177/08927057241231733","url":null,"abstract":"Polylactic acid (PLA) composites reinforced with 10 wt% of flax (FF) or bamboo (BF) fibers were prepared via an internal mixer and/or twin-screw extrusion. Alkali pretreated fibers were soaked in silane to improve adhesion between fibers and matrix. 0.8 wt% of Joncryl™, a grafted copolymer acting as PLA chain extender, was also used alone or in combination with silane treatment of fibers to improve interfacial adhesion. The influence of silane treatment and/or Joncryl on the composite materials on mechanical, thermal and thermomechanical properties of materials processed through injection molding was investigated. Improved adhesion of the fibers to the matrix was shown using a scanning electron microscope. Fourier Transform Infrared Spectroscopy indicated that chemical bonds were formed between the silane coupling agent and fibers. X-ray Photo-electron Spectroscopy confirmed that fibers and silane derivatives were effectively coupled. XPS also highlighted that silane coupling agent reacted in higher amounts on bamboo than flax fibers, probably due to a higher amount of lignin in the case of bamboo fibers. Thermogravimetric analyses indicated that silane-treated flax and bamboo increased the thermal stability of the corresponding composites (PLA-SFF and PLA-SFB) compared to non-treated fiber composites. The incorporation of Joncryl alone entailed a degradation of the thermal stability of the corresponding composites (PLAJ-FF and PLAJ-FB) but enhanced the PLA/fibers interfacial adhesion. The combination of Joncryl and silane treatment resulted in strong improvements of thermal stability and interfacial adhesion for the PLAJ-SFF and PLAJ-SBF composites. Increase in tensile moduli and decrease in tensile strengths with the incorporation of the pristine fibers were noted. For silane-treated fibers, the tensile modulus and the strength of the corresponding composites were improved when adding Joncryl alone or in combination with silane. From also rheological and molar weight measurements, it could be concluded that Joncryl acts both as PLA chain extender and coupling agent.","PeriodicalId":508178,"journal":{"name":"Journal of Thermoplastic Composite Materials","volume":"74 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139837267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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