Advanced Composites and Hybrid Materials最新文献

{"title":"Flexible, stable and self-powered two-dimensional layered nanocomposites (PANI@MoS2) for trace ammonia gas detection","authors":"Cheng Chen,&nbsp;Qian Tu,&nbsp;Xin Zhou,&nbsp;Jiaxin Xu,&nbsp;Caihong Lv,&nbsp;Xianwen Ke,&nbsp;Houbin Li,&nbsp;Liangzhe Chen,&nbsp;Xinghai Liu","doi":"10.1007/s42114-024-01204-x","DOIUrl":"10.1007/s42114-024-01204-x","url":null,"abstract":"<div><p>Reliable self-powered provision and stretchability are significant challenges for achieving portable gas detection, but reports have difficulties to achieve either so far. In this paper, 2D layered PANI@MoS₂ composite with promising energy storage and NH₃-sensitive properties was synthesized by NH₄⁺ insertion and in-situ growth technique. Because of the unique layered structure facilitating rapid reversible diffusion of charge ions, the energy storage properties of composite was significantly improved (838.7 F/g at 1A/g current density), and the assembled device could power a LED bulb for more than 20 min. Furthermore, due to the formation of p-n heterojunction and Schottky barrier between PANI and MoS₂, as well as the enhancement of PANI’s structure and dispersion via polystyrene sulfonic acid along with nylon filter membrane, the sensitivity of sensor film exceeded 287 Ω/ppm, and the theoretical detection limit even reached 0.662 ppb by calculation. Ultimately, benefit from the outstanding stability and stretchability of the devices, by integrating the supercapacitor and sensor film, a semi-quantitative, real-time detection of spoiled food and exhaled gas from people was achieved. The self-powered sensing device was anticipated to be an important candidate in flexible wearable sensing arena.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890087","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":"Preparation, characterization, bioactivity, and safety evaluation of PEI-modified PLGA nanoparticles loaded with polysaccharide from Cordyceps militaris","authors":"Hongyan Pei,&nbsp;Jun Li,&nbsp;Junjie Kuang,&nbsp;Zhongmei He,&nbsp;Ying Zong,&nbsp;Luming Qi,&nbsp;Rui Du,&nbsp;Yun Ji,&nbsp;Kui Zhao","doi":"10.1007/s42114-024-01135-7","DOIUrl":"10.1007/s42114-024-01135-7","url":null,"abstract":"<div><p>Yong Chong Cao polysaccharides (CSPs) are extracted from <i>Cordyceps militaris</i> which has a wide range of pharmacological effects, especially in immune regulation. However, CSPs face certain drawbacks, including rapid metabolism and poor bioavailability, which hinder their use. The objective of this research was to enhance the preparation parameters of polyetherimide (PEI)-modified poly lactic-co-glycolic acid (PLGA), PLGA-PEI, which encapsulated CSP nanospheres using response surface methodology; investigate their properties; and evaluate their impact on RAW26.4 cells. The CSP-PLGA-PEI nanospheres were synthesized using the double emulsion solvent evaporation technique, and the best preparation conditions were determined to be a 0.5% concentration of poloxamer 188 (F68) (W/V), an organic phase (O) to water phase (W1) ratio (V/V) of 7:1, an external water (W2) to primary emulsion (PE) ratio (V/V) of 8:1, and a PLGA to PEI ratio (W/W) of 20:1, achieving a maximum encapsulation efficiency (EE) of 64.98%. The CSP-PLGA-PEI nanoparticles exhibited a nearly spherical form with a smooth exterior, were uniform in size, and demonstrated clear sustained release properties and consistent stability. Macrophages are important immune cells in innate immunity, and have remarkable polarization. CSP-PLGA-PEI nanospheres showed a good promoting effect on the activation of macrophages in our present study. In addition, CSP-PLGA-PEI nanospheres were much more effectively swallowed by RAW264.7 so that its promoting effect on immune regulation was higher than that of CSP. CSP-PLGA-PEI nanoparticles were able to effectively activate ROS signaling in zebrafish in vivo experiments and induce an immune response in their organism. Finally, CSP-PLGA-PEI nanospheres showed the potential to become a new type of immune enhancer or immune enhancement adjuvant.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890072","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":"Constructing ultra-strong and water resistance magnesium oxychloride cement-based adhesive for wood industry","authors":"Cheng Li,&nbsp;Zijie Zhao,&nbsp;Miao Li,&nbsp;Qianqian Ye,&nbsp;Zugang Li,&nbsp;Yong Wang,&nbsp;Wanxi Peng,&nbsp;Jianhui Guo,&nbsp;Xiangmeng Chen,&nbsp;Hanyin Li","doi":"10.1007/s42114-024-01143-7","DOIUrl":"10.1007/s42114-024-01143-7","url":null,"abstract":"<div><p>Environmentally friendly, aldehyde-free adhesive designs are in high demand in the wood industry, helping to reduce environmental impact and human health concerns. Magnesium oxychloride cement (MOC) is a low-carbon inorganic gel material that can improve the utilization rate of potassium fertilizer and is a potential substitute for aldehyde-based adhesives. However, in practical applications, it is often limited by its poor water resistance and compatibility with wood, resulting in poor bonding performance. In this paper, an organic–inorganic hybrid method is proposed. Sodium hexametaphosphate/soluble polysaccharide (SHP/SP) was introduced to develop a MOC inorganic adhesive with high adhesion, mechanical strength, and water resistance. The abundant functional groups in SHP/SP formed multiple interactions with Mg²⁺, thus creating an internal network with excellent cohesion strength. The addition of SHP/SP enabled stable infiltration of MOC into the wood through electrostatic adsorption and metal chelation. The results showed that the softening coefficient, compressive strength, and wet shear strength of MOC/SHP/SP adhesive were 0.98, 121.14 MPa, and 2.28 MPa, respectively, representing 81.48%, 128%, and 147.83% increase compared to unmodified MOC. Thus, this study provides a promising approach for developing high-performance and environmentally friendly MOC adhesives and composites using agricultural and industrial by-products.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890472","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":"A novel eco-friendly bamboo-based composite biochar for effective removing oxytetracycline hydrochloride","authors":"Hanyin Li,&nbsp;Chen Zhou,&nbsp;Luohui Wang,&nbsp;Fan Yang,&nbsp;Jingyi Liang,&nbsp;Fei Wang,&nbsp;Peiyan Li,&nbsp;Cheng Li,&nbsp;Zhigang Wu,&nbsp;Tianbao Ren","doi":"10.1007/s42114-024-01186-w","DOIUrl":"10.1007/s42114-024-01186-w","url":null,"abstract":"<div><p>Tetracycline contaminants are frequently found in groundwater and surface water, which contribute to the proliferation of antibiotic resistance genes, leading to significant environmental pollution. Adsorption technology is an efficient and reproducible remediation method. In this work, a bamboo-based composite biochar was prepared by attaching zeolitic imidazole framework-67 to delignified bamboo flakes, followed by carbonization using the solvothermal method to remove oxytetracycline hydrochloride from water. The chemical and physical properties of the composite were characterized using different surface analysis techniques. The findings revealed that zeolitic imidazole framework-67 modified bamboo-based composite biochar, with a maximum adsorption capacity of 310.74 mg·g⁻¹, adhered to the pseudo-second kinetic model and Langmuir isothermal model during the adsorption of oxytetracycline hydrochloride. The adsorption process was spontaneous, exothermic, and involved monolayer chemisorption. Possible mechanisms included electrostatic interactions, hydrogen bonding, physisorption and π-π interactions. This study demonstrates that the bamboo-based composite biochar possesses excellent adsorption properties for oxytetracycline hydrochloride and could serve as a cost-effective and environmentally friendly adsorbent for removing antibiotics from water.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889863","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":"Digital light processing 3D printing of dual crosslinked meniscal scaffolds with enhanced physical and biological properties","authors":"Abhay Menon,&nbsp;Kamil Elkhoury,&nbsp;Amer Zahraa,&nbsp;Jiranuwat Sapudom,&nbsp;Zerina Rahic,&nbsp;Kristin C. Gunsalus,&nbsp;Jeremy Teo,&nbsp;Nikhil Gupta,&nbsp;Sanjairaj Vijayavenkataraman","doi":"10.1007/s42114-024-01196-8","DOIUrl":"10.1007/s42114-024-01196-8","url":null,"abstract":"<div><p>Regenerating damaged meniscal tissue remains a significant challenge due to the meniscus’ limited capacity for self-repair. Photocrosslinkable hydrogels, like gelatin methacryloyl (GelMA), offer a promising solution for meniscal regeneration by providing structural flexibility to accommodate the meniscus’ complex geometry while enabling the incorporation of bioactive molecules and cells. However, GelMA alone often lacks the mechanical robustness required for load-bearing applications. In this study, we introduce a dual-crosslinked GelMA scaffold, enhanced with tannic acid (TA), designed to replicate the mechanical properties of the native meniscus. By adjusting TA concentrations, we successfully fine-tuned the scaffold’s compressive modulus to match that of human meniscal tissue. This dual crosslinking not only improved mechanical strength but also resulted in a denser matrix with smaller pore sizes and reduced degradation and swelling rates. The optimized GelMA-TA formulation was 3D-printed into complex shapes, demonstrating its potential for producing patient-specific scaffolds. Beyond its mechanical benefits, the GelMA-TA scaffold exhibited excellent antioxidant and antibacterial properties. Human mesenchymal stem cells seeded onto the scaffold showed high viability, increased proliferation, and successful chondrogenic differentiation. Additionally, the GelMA-TA scaffold acted as an immunomodulatory biomaterial, suppressing pro-inflammatory responses in monocytes while promoting an anti-inflammatory, pro-regenerative M2a macrophage phenotype. These findings suggest that the GelMA-TA scaffold holds strong potential as a viable solution for meniscal tissue repair, offering both structural integrity and enhanced biological functionality.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01196-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic magnetite/epoxy nanocomposites with polyaniline as coupling agent: preparation, characterization, and property","authors":"Juanna Ren,&nbsp;Wenhao Dong,&nbsp;Ethan Burcar,&nbsp;Ashley DeMerle,&nbsp;Zhe Wang,&nbsp;Hua Hou","doi":"10.1007/s42114-024-01166-0","DOIUrl":"10.1007/s42114-024-01166-0","url":null,"abstract":"<div><p>An in situ polymerization method fabricated the electrically conductive magnetic epoxy nanocomposites with magnetite@polyaniline. With the introduction of polyaniline on the magnetite nanoparticles, the structural integrity of the synthesized epoxy nanocomposites was enhanced with the bridging effect of the polyaniline. Specifically, compared with pure epoxy, the tensile strength was improved to 82.2 MPa when 1.0 wt% magnetite@polyaniline was added to the epoxy matrix. The enhanced mechanical property is due to the enhanced interfacial interaction. With further increasing particle loading to 30.0 wt%, glass transition temperature (<i>T</i>_g) was decreased to 85.4 °C, which is related to the enlarged free volume between epoxy chains. The saturation magnetization of 30.0 wt% magnetite@polyaniline/epoxy composites was 12.79 emu/g. Moreover, with the assistance of magnetite@polyaniline, the thermal stability was enhanced compared with pure epoxy. The electromagnetic wave absorption of the unique magnetite@polyaniline/epoxy nanocomposites was also studied. When the content of magnetite@polyaniline reached 30.0 wt%, the reflection loss even reached − 35.9 dB. This work guides the fabrication of multifunctional epoxy nanocomposites with comprehensive electrical, magnetic, and mechanical properties.</p><h3>Graphical abstract</h3><p>Magnetite epoxy nanocomposites with polyaniline as coupling agent with enhanced electromagnetic wave absorption performance</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-01166-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent progress on covalent organic frameworks and their composites as electrode materials for supercapacitors","authors":"Ruidong Li,&nbsp;Jie Li,&nbsp;Qianwen Liu,&nbsp;Tingxi Li,&nbsp;Di Lan,&nbsp;Yong Ma","doi":"10.1007/s42114-024-01177-x","DOIUrl":"10.1007/s42114-024-01177-x","url":null,"abstract":"<div><p>Covalent organic frameworks (COFs) represent a category of organic crystalline structures characterized with porous morphologies that can extend into two or three dimensions. Because of their intricate and adjustable pore structures and expansive and accessible surfaces, as well as their abundance of redox-active sites, COFs exhibit substantial potential in applications related to capacitive energy storage. In recent years, researchers have achieved significant advancements in utilizing COFs and materials derived from them for capacitive energy storage applications. For instance, enhanced electrochemical performance has been realized through the fabrication of COFs having distinctive structures, including covalent organic porous polymers (CMPs) and 2D materials derived from COFs. Additionally, the evolution of innovative synthesis strategies and characterization methods expands the scope of applications for COFs. In conclusion, COFs hold significant promise for capacitive energy storage applications. This paper offers a review of recent advancements towards COFs and their composites in capacitive energy applications. It also highlights their structural attributes, synthesis approaches, and applications in capacitive electrode materials. Given the depth of scientific inquiry into COFs, it is anticipated that they will assume an integral and key role in the realm of energy storage.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890436","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":"Unravelling the effect of temperature and humidity alternation on 6061 aluminium alloy corrosion behaviour in simulated urban industrial environment","authors":"Xiao-lei Liu,&nbsp;Jianwen Jia,&nbsp;Hua-yun Du,&nbsp;Li-feng Hou,&nbsp;Qian Wang,&nbsp;Hong-wei He,&nbsp;Huan Wei,&nbsp;Xiao-da Liu,&nbsp;Yan Zhou,&nbsp;Yi-bin Gao,&nbsp;Ying-hui Wei","doi":"10.1007/s42114-024-01178-w","DOIUrl":"10.1007/s42114-024-01178-w","url":null,"abstract":"<div><p>The effect of temperature and humidity alternation on the corrosion behaviour and mechanical properties of 6061 aluminium alloy in a simulated urban industrial atmospheric environment was investigated and analysed by weightlessness method, scanning electron microscope (SEM), energy dispersive spectrometer (EDS), Fourier infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and dynamic potential polarization (LSV). The fluctuation of the composition, structure, and morphology of the corrosion product layer is studied; the entry of corrosive medium destroys the densification; and the second phase brings the potential difference, which causes the corrosion to expand internally and accelerates the localized corrosion. The corrosion rate shows a trend of first gradually increasing and then decreasing, corresponding to the formation of the initial oxide film hinders the corrosion, and then the local product film separation leads to the weakening of the corrosion resistance. The mechanical properties are significantly reduced after corrosion, and the fracture mechanism is transformed from the ductile fracture to the cleavage fracture gradually. This study also provided some theoretical guidance for the accelerated simulation tests of Al alloys in the marine atmosphere.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889621","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":"Effect of oxygen content of biochar on glucose isomerization in carbon-based Mg catalysts: achieving excellent catalytic efficiency and stability","authors":"Xiheng Kang,&nbsp;Zi You,&nbsp;Siyu Zhao,&nbsp;Yihan Li,&nbsp;Tianming Su,&nbsp;Yongsheng Li,&nbsp;Chuanling Si,&nbsp;Arthur J. Ragauskas,&nbsp;Tieguang He,&nbsp;Xueping Song,&nbsp;Zhanying Zhang","doi":"10.1007/s42114-024-01148-2","DOIUrl":"10.1007/s42114-024-01148-2","url":null,"abstract":"<div><p>An efficient isomerization catalyst is essential for the preparation of fructose from glucose, which is also an effective way to valorize cellulose to value-added chemicals. In this work, the interaction between catalytically active substances and biochar and the chemical properties of active sites are regulated by improving the oxygen content in biochar to enhance the efficiency of glucose isomerization catalyst. The biochar-based magnesium (Mg-BC) catalysts have been prepared by impregnation-pyrolysis complex with MgCl₂ and biochar. Results indicate that the catalytic efficiency and active site stability of Mg-BC catalysts can be effectively improved by adjusting the oxygen content of biochar. The amounts of strongly basic active sites (48.69 mmol·g⁻¹) in the Mg-BC-3 catalyst prepared by BC-3 with high oxygen content are obviously higher than that of the Mg-BC-1 catalyst (19.32 mmol·g⁻¹) prepared by BC-1 with low oxygen content. And the large number of strongly basic active sites in Mg-BC-3 are more favorable for increasing glucose conversion and fructose selectivity, which can obtain efficiencies comparable to those of isomerase catalysts such as 48.15% glucose conversion, 85.38% fructose selectivity, and 41.11% fructose yield at 110 °C for 20 min. Meanwhile, a confinement effect of the mesoporous size of the catalyst on the active substance MgO and a relatively stable Mg-O-C group formed by the BC-3 and Mg²⁺ combine to improve the stability of the catalyst. Based on the density functional theory analysis, compared with the catalytic process without active sites, the loaded active substance MgO can effectively reduce the energy barrier from 67.1 to 21.3 kcal·mol^-1 to form the enediol intermediates, further demonstrating the high catalytic efficiency of Mg-BC-3. In this work, we develop a highly efficient Mg-BC-3 catalyst for glucose isomerization and provide an efficient method for cellulose valorization.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890433","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":"Polypropylene foaming using supercritical carbon dioxide: a review on fundamentals, technology, and applications","authors":"Gang Wang,&nbsp;Mengyao Dong,&nbsp;Huahong Deng,&nbsp;Xiao Ma,&nbsp;Bingyue Zhu,&nbsp;Li Zhou,&nbsp;Xiangning Zhang,&nbsp;Daqing Tan,&nbsp;Hassan Algadi","doi":"10.1007/s42114-024-01117-9","DOIUrl":"10.1007/s42114-024-01117-9","url":null,"abstract":"<div><p>Polymer foams are extensively employed in automotive, flame retardant, and food packaging owing to their lightweight, excellent insulation, high strength, thermal stability, and impact resistance. Polypropylene (PP) is regarded as an alternative to other thermoplastic polymers because of its low-cost, excellent heat resistance, and corrosion resistance. However, the inherent limitation stemming from the weak melt strength of linear PP, coupled with its low melt elasticity, presents significant challenges in the production of PP foams characterized by microsized and uniform cell distribution. To enhance the performance of PP foam, various modification methods such as long-chain branching, cross-linking, blending, and adding fillers are employed. This paper first provides an overview of the foaming process of supercritical carbon dioxide and analyzes the influence of chemical structure and crystal structure on PP foaming. Subsequently, methods to enhance PP foaming properties, such as branching, cross-linking, blending, and filler incorporation, are discussed. Various foaming technologies for PP, including batch foaming, extrusion foaming, and injection foaming, are delineated. Furthermore, the diverse applications of PP foams, encompassing automotive components, thermal insulation, flame retardancy, electromagnetic shielding, oil–water separation, and food packaging were outlined. Finally, the current research status of PP foams is summarized, and the prospects for high-performance PP are addressed.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890434","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}