Sustainable Materials and Technologies最新文献_第6页

Effect of polylimonene on the release behavior and physico-chemical properties of photo-cross-linkable alginate-based hydrogels

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-19 DOI: 10.1016/j.susmat.2025.e01311

Roniérik Pioli Vieira , Guilherme Frey Schutz , Laurens Parmentier , Sandra Van Vlierberghe

{"title":"Effect of polylimonene on the release behavior and physico-chemical properties of photo-cross-linkable alginate-based hydrogels","authors":"Roniérik Pioli Vieira , Guilherme Frey Schutz , Laurens Parmentier , Sandra Van Vlierberghe","doi":"10.1016/j.susmat.2025.e01311","DOIUrl":"10.1016/j.susmat.2025.e01311","url":null,"abstract":"<div><div>Herein, we report the synthesis and characterization of methacryloyl-modified sodium alginate (AlgMA)-based hydrogels incorporating an antioxidant limonene-derived oligomer (PLM) for potential biomedical applications. <sup>1</sup>H NMR spectroscopy confirmed the successful synthesis of AlgMA, enabling hydrogel formation <em>via in-situ</em> photo-cross-linking in the presence of PLM. The effect of 2.5 %, 5 %, and 10 % PLM was meticulously assessed on the material's properties. High PLM loads tended to decrease the hydrogel storage modulus, changing from 4.4 kPa (AlgMA) to 2.2 kPa (AlgMA/PLM10), enabling tuning from stiff to softer materials. Both physical properties and HR-MAS <sup>1</sup>H NMR spectroscopy results indicated a decrease in cross-linking efficiency upon increasing PLM concentration, with double bonds conversion ranging from 91 % to 68 % depending on PLM load. Moreover, cytotoxicity evaluations revealed AlgMA/PLM5 as an upper threshold to maintain cell viability above 70 %, while AlgMA/PLM2.5 showed improved cytocompatibility. PLM release from hydrogels followed Weibull kinetics, experiencing a burst release followed by a sustained release phase, allowing for quick application to deliver antioxidants. Overall, AlgMA-based hydrogels incorporating PLM offer tunable physico-chemical properties, retained antioxidant activity, and a release profile within a defined therapeutic window, showcasing their potential as novel biomaterials exhibiting antioxidant properties.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01311"},"PeriodicalIF":8.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient UV-shielding coatings with carbon quantum dots

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-19 DOI: 10.1016/j.susmat.2025.e01301

Clara Ponte , Lucas C. Grosche , Yury V. Kolen'ko , Juliana P.S. Sousa

{"title":"Efficient UV-shielding coatings with carbon quantum dots","authors":"Clara Ponte , Lucas C. Grosche , Yury V. Kolen'ko , Juliana P.S. Sousa","doi":"10.1016/j.susmat.2025.e01301","DOIUrl":"10.1016/j.susmat.2025.e01301","url":null,"abstract":"<div><div>Most polymers are susceptible to ultraviolet (UV) radiation, showing irreversible damage after extended exposures, which consequently affects the durability of paints. The currently used inorganic UV protective compounds struggle to remediate this problem due to their short UV absorption range and poor photostability, resulting in the deterioration of the polymeric coatings. Recently, carbon quantum dots (CQDs) have been raising great interest owing to their excellent UV absorption and photostability with high compatibility in different polymeric systems, making them promising UV absorbers.</div><div>The present work reports the synthesis of nitrogen-doped CQDs and their characterization by well-established techniques regarding their chemical composition, morphology, size, thermal stability, and optical properties. Different amounts of CQDs were incorporated in a commercial polyurethane (PU)-based matrix. The UV-shielding capacity, and chemical and mechanical properties of the developed coatings were evaluated. The present study reports the preparation of 40 μm thick CQDs@PU coatings with a high UV-shielding capacity of up to 98% under direct sunlight. Also, the prepared coatings were revealed to be resistant to abrasion and have good washability and adhesion to the metallic substrate.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01301"},"PeriodicalIF":8.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intelligent color-varying windows: High contrast electrochromic triarylamine-based polyimide devices

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI: 10.1016/j.susmat.2025.e01303

Xiangwen Wu , Xiaopeng Zhang , Dongwei Zhang , Imran Murtaza , Dongwen Zou , Meimei Zhu , Yanan Zhu , Yaowu He , Hong Meng

{"title":"Intelligent color-varying windows: High contrast electrochromic triarylamine-based polyimide devices","authors":"Xiangwen Wu , Xiaopeng Zhang , Dongwei Zhang , Imran Murtaza , Dongwen Zou , Meimei Zhu , Yanan Zhu , Yaowu He , Hong Meng","doi":"10.1016/j.susmat.2025.e01303","DOIUrl":"10.1016/j.susmat.2025.e01303","url":null,"abstract":"<div><div>Electrochromic devices (ECDs) spanning from colorless to black have garnered increasing attention in both fundamental scientific research and potential applications in recent years. To address the need for a multi-response optoelectronic material capable of efficient black conversion (black color/emission dual switching), we developed a novel triarylamine-based polyimide polymer, named CpO-PI, employing an innovative design strategy. This polymer incorporates two triphenylenediamine monomers linked to CpODA, resulting in exceptional properties. CpO-PI exhibits full wavelength absorption across the visible light spectrum in both natural and oxidized states, with boasting commendable solubility, thermal stability, and photoluminescence (PL) activity. Leveraging tungsten trioxide as the counter electrode in the optimized ECD, it achieved remarkable optical contrast (up to 99 %), distinct pure EC characteristics, robust memory performance, and high coloring efficiency (CE = 695 cm<sup>2</sup>·C<sup>−1</sup>) in the energized oxidation state. Our study not only presents a pioneering approach towards developing efficient EC materials but also underscores the potential of utilizing triphenylamine chromophore-based polyimides in the next generation of electrochromic fluorescent devices. These findings are poised to invigorate further exploration in the field of EC technology.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01303"},"PeriodicalIF":8.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heat generation in perovskite/CZTSSe tandem solar cells

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI: 10.1016/j.susmat.2025.e01308

Mohammad Bahrami , Mohammad Mahdi Najafali , Javad Maleki , Fatemeh Khalaji , Mansour Kanani , Mohammad Moaddeli , Nima E. Gorji

{"title":"Heat generation in perovskite/CZTSSe tandem solar cells","authors":"Mohammad Bahrami , Mohammad Mahdi Najafali , Javad Maleki , Fatemeh Khalaji , Mansour Kanani , Mohammad Moaddeli , Nima E. Gorji","doi":"10.1016/j.susmat.2025.e01308","DOIUrl":"10.1016/j.susmat.2025.e01308","url":null,"abstract":"<div><div>Tandem of Perovskite and other materials for solar cell structure have attracted the attention of many researchers. Here, we developed a strong coupled model to investigate the heat generation and thermal stability of Perovskite/CZTSSe Tandem Solar Cells. Studying the opto-electro-thermal (OET) properties of tandem solar cells is essential to better understand the optical absorption, carrier transport, and their thermodynamic behavior. In recent years, thermal losses in solar cells have received more attention and heat generation in solar cell structure has said to be effective on long-term stability and performance. Temperature distribution and heat generation of tandem solar cells has been rarely investigated in literature. The heat generation through Peltier heat, Thermalization heat, Joule heat, Non-radiative recombination heat and Surface recombination heat has been mapped using COMSOL. CZTSSe bottom cell generates more Joule heat (H<sub>Joul</sub><sub>e</sub> = 224.65 W/m<sup>2</sup>) compared to Perovskite top cell (H<sub>Joule</sub> = 78.3 W/m<sup>2</sup>). H<sub>Thermalization</sub> = 166.34 W/m<sup>2</sup> and H<sub>peltier</sub> = 136 W/m<sup>2</sup> are also higher in CZTSSe bottom cell compared to lower value in perovskite top cell (H<sub>Thermalization</sub> = 58.73 W/m<sup>2</sup>, H<sub>peltier</sub> = 111.78 W/m<sup>2</sup>). Non-radiative recombination heat is negligible in Perovskite top cell compared to CZTSSe bottom cell (H<sub>non-rad</sub> = 4.41 W/m<sup>2</sup>).</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01308"},"PeriodicalIF":8.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insight into anti-corrosion mechanism of copper in 0.5 M sulfuric acid solution via microwave-assisted synthesis of carbon quantum dots as novel inhibitors

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI: 10.1016/j.susmat.2025.e01305

Bochuan Tan , Yan Liu , Wenting Zhao , Zhili Gong , Xin Li , Wenpo Li , Xianghong Li , Lei Guo , Wenyan Zhang , Shijie Zhao , Riadh Marzouki , Qingwei Dai , Xi Chen

引用次数: 0

Crystalline/amorphous heterostructure CoNi/MoO3-x as an bidirectional catalyst for polysulfide reaction to enable high‑sulfur-loading lithium‑sulfur battery

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI: 10.1016/j.susmat.2025.e01307

Yvjie Lv , Qingmei Su , Kai Zhang , Xingxing Zhang , Weihao Shi , Siyao Wang , Fang Zhang , Wenqi Zhao , Miao Zhang , Shukai Ding , Gaohui Du , Bingshe Xu

{"title":"Crystalline/amorphous heterostructure CoNi/MoO3-x as an bidirectional catalyst for polysulfide reaction to enable high‑sulfur-loading lithium‑sulfur battery","authors":"Yvjie Lv , Qingmei Su , Kai Zhang , Xingxing Zhang , Weihao Shi , Siyao Wang , Fang Zhang , Wenqi Zhao , Miao Zhang , Shukai Ding , Gaohui Du , Bingshe Xu","doi":"10.1016/j.susmat.2025.e01307","DOIUrl":"10.1016/j.susmat.2025.e01307","url":null,"abstract":"<div><div>Lithium‑sulfur batteries (LSBs) are a very promising next-generation battery due to their high theoretical specific capacity and specific energy. However, the commercialization process is impeded by high‑sulfur-loading cathodes due to the low conductivity of sulfur, the slow redox kinetics and the shuttle effect of soluble polysulfides. Herein, an amorphous MoO<sub>3-<em>x</em></sub> floral nanosheet structure embedded with CoNi alloy particles on carbon cloth (CoNi/MoO<sub>3-<em>x</em></sub>@CC) was developed as a interlayer to achieve fast redox reaction kinetics in LSBs. The 3D-supported conductive network structure architecture of the carbon cloth provides channels for the rapid electron and ion transfer. It was confirmed that the strong chemisorption and catalytic conversion for LiPSs were produced by the the synergistic effect of CoNi alloy and amorphous MoO<sub>3-<em>x</em></sub>. The LSBs assembled with CoNi/MoO<sub>3-<em>x</em></sub>@CC interlayer exhibit improved rate performance (reversible specific capacity of 525 mAh g<sup>−1</sup> at 2C) and outstanding cycling stability (capacity decay rate of 0.071 % after 500 cycles at 1C). Furthermore, the CoNi/MoO<sub>3-<em>x</em></sub>@CC interlayer was created for LSBs with high sulfur loading. After 50 cycles at 0.2C, the LSBs with higher sulfur loadings of 8.07 and 8.92 mg cm<sup>−2</sup> provide high reversible capacity of 1060 and 980 mAh g<sup>−1</sup>, respectively.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01307"},"PeriodicalIF":8.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PBAT/CNTs/PBAT yarn strain sensor with fully degradable, thermal repair, acid and alkali resistance, and waterproof functions

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-18 DOI: 10.1016/j.susmat.2025.e01306

Shuolei Wang , Ziyue Zhang , Rui Wang , Xiaojian Jiang , Hongyu Gao , Shi Xu , Naharullah Jamaluddin , Chen Qian , Yaqin Fu , Yubing Dong

{"title":"PBAT/CNTs/PBAT yarn strain sensor with fully degradable, thermal repair, acid and alkali resistance, and waterproof functions","authors":"Shuolei Wang , Ziyue Zhang , Rui Wang , Xiaojian Jiang , Hongyu Gao , Shi Xu , Naharullah Jamaluddin , Chen Qian , Yaqin Fu , Yubing Dong","doi":"10.1016/j.susmat.2025.e01306","DOIUrl":"10.1016/j.susmat.2025.e01306","url":null,"abstract":"<div><div>Flexible wearable strain sensors have attracted much attention in the field of health monitoring due to their advantages of simple preparation process and good comfort. However, in daily use, factors like friction, sweat during exercise, or harsh environments such as rain may lead to the failure of the strain sensor. Therefore, this study designed a strain sensor that is waterproof, wear-resistant, resistant to various corrosive fluids and has biodegradation characteristics. The strain sensor was prepared by using carbon nanotubes (CNTs) with high length-to-diameter ratio as conductive filler and environment-friendly polybutylene terephthalate (PBAT) as matrix and packaging materials. The CNTs/PBAT strain sensor has reversible and repeatable resistance at 5 %–30 % strain, stable cycle durability (2500 cycles), and low carbon nanotube content (0.45 %). Moerover, it has thermal repair properties that can eliminate creep caused by long-term use of polymers and extend their service-life. In addition, the PBAT/CNTs/PBAT strain sensor operates safely within the safe voltage range of the human body, can monitor body movement in air and water, and has a wide range of applications in wearable sports health.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01306"},"PeriodicalIF":8.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and performance study of Fe2WO6@Ni3S2-WS2/NF for efficient electrolytic water to hydrogen

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-17 DOI: 10.1016/j.susmat.2025.e01302

Xinrong Zhao, Meiqi Che, Yaqiong Gong

{"title":"Synthesis and performance study of Fe2WO6@Ni3S2-WS2/NF for efficient electrolytic water to hydrogen","authors":"Xinrong Zhao, Meiqi Che, Yaqiong Gong","doi":"10.1016/j.susmat.2025.e01302","DOIUrl":"10.1016/j.susmat.2025.e01302","url":null,"abstract":"<div><div>Hydrogen production from electrolytic water is a promising energy conversion method, which is green, low-carbon and environmentally friendly and it is essential to prepare efficient and low-cost electrocatalysts to improve the efficiency of water electrolysis. In this study, Fe<sub>2</sub>WO<sub>6</sub>@Ni<sub>3</sub>S<sub>2</sub>-WS<sub>2</sub>/NF was successfully synthesized by hydrothermal and electrodeposition methods, and its special nanoflower-like structure and synergistic effect among multi-components resulted in excellent catalytic performance and outstanding stability. The overpotential of Fe<sub>2</sub>WO<sub>6</sub>@Ni<sub>3</sub>S<sub>2</sub>-WS<sub>2</sub>/NF was 170 mV at 10 mA cm<sup>−2</sup> in 1.0 M KOH for oxygen evolution reaction (OER) and it remains stable over 100 h, demonstrating its high catalytic activity and stability, making it suitable for prolonged OER processes. The increased activity of Fe<sub>2</sub>WO<sub>6</sub>@Ni<sub>3</sub>S<sub>2</sub>-WS<sub>2</sub>/NF can be attributed to the improved electron transport rate, the exposure of more active sites and the improved conductivity. This study provides a viable method for the preparation of efficient and robust OER catalysts.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01302"},"PeriodicalIF":8.6,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-powered sensing potential in CO2 adsorption-desorption processes

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-16 DOI: 10.1016/j.susmat.2025.e01293

Qiyu Li , Jun Shen , Yanjie Zheng , Jun Liu , Ge He , Hongkai Zhao , Zhenxing Li , Yanan Zhao , Yao Liu , Lei Jiang

{"title":"Self-powered sensing potential in CO2 adsorption-desorption processes","authors":"Qiyu Li , Jun Shen , Yanjie Zheng , Jun Liu , Ge He , Hongkai Zhao , Zhenxing Li , Yanan Zhao , Yao Liu , Lei Jiang","doi":"10.1016/j.susmat.2025.e01293","DOIUrl":"10.1016/j.susmat.2025.e01293","url":null,"abstract":"<div><div>Sensors for detecting the presence, concentration or flow rate of target molecules are widely used in gas detection, environmental monitoring and industrial process control. Given the increasing importance of CO<sub>2</sub> in carbon capture, utilization, storage (CCUS) technologies and various industrial processes, this study explores the micro power generation and sensing potential in CO<sub>2</sub> adsorption-desorption processes. We delve into the micro-mechanisms underlying the temperature response of NaX molecular sieve during these processes. Using Monte Carlo simulations, molecular dynamics simulations and experimental methods, we investigate how the temperature changes during adsorption/desorption processes. Our findings attribute the asymmetric temperature response curve to the molecular sieve's faster adsorption rate of CO<sub>2</sub> compared to its desorption rate under a flashing N<sub>2</sub> flow, leading to a rapid increase in adsorption temperature. Based on the temperature response, we designed a micro power generation device that connects adsorption-induced temperature differentials to measurable electrical signals. The device, based on the temperature difference of up to 84.78 K generated during the adsorption-desorption process, produces a maximum output current of 3.34 mA and a power output of 117.1 μW. This cost-effective, self-powered approach shows great potential for CO₂ sensing and detection of other gases, especially for integration into CCUS and adsorption-desorption-based sensing applications.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01293"},"PeriodicalIF":8.6,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The pyrolysis behavior of typical epoxy/amine system: From degradation product to the mechanism ofchemical bond breakage

IF 8.6 2区工程技术

Sustainable Materials and Technologies Pub Date : 2025-02-14 DOI: 10.1016/j.susmat.2025.e01297

Hongmingjian Zhang , Lingyun Wu , Xiulong Qin , Manxi Zhou , Dan Xue , Gang Bai , Aosong Zhou , Xiaoping Yang , Gang Sui

{"title":"The pyrolysis behavior of typical epoxy/amine system: From degradation product to the mechanism ofchemical bond breakage","authors":"Hongmingjian Zhang , Lingyun Wu , Xiulong Qin , Manxi Zhou , Dan Xue , Gang Bai , Aosong Zhou , Xiaoping Yang , Gang Sui","doi":"10.1016/j.susmat.2025.e01297","DOIUrl":"10.1016/j.susmat.2025.e01297","url":null,"abstract":"<div><div>With the ever-growing demand and large-scale production, carbon fiber reinforced polymer composites have become an integral part of human life, yet face the challenging issue of being difficult to degrade and recycle. Pyrolysis technology allows the reclamation of the fibers by thermal decomposition of polymer matrix. However, due to the complex chemical reaction during pyrolysis, the degradation mechanism is still no unified consensus. In this paper, the molecular simulation was implemented to analyze the pyrolysis process of three typical epoxy matrix in order to thoroughly analyze the pyrolysis characteristics and degradation behavior. The results showed that in the epoxy crosslinked networks, chemical bond breaking positions were concentrated in the vicinity of oxygen and nitrogen atoms. The reason was found that the oxygen atoms was susceptible to electrophilic reagent through the analysis of the electronic structure, which caused the chemical bond around the oxygen atom to break first during the pyrolysis. Based on the simulation results, terephthalic acid chloride was selected as epoxy matrix catalyst and had great catalytic degradation effect which was proved by experiments. The relationship between the structure of the matrix and the degree of degradation was further confirmed by comparing the activation energy. Through this study, the degradation mechanism of epoxy matrix was discussed in detail, and the essence and principal of the typical bond breakage were also revealed. Based on these studies, a new method for designing and screening efficient epoxy matrix pyrolysis catalysts can be proposed.</div></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":"43 ","pages":"Article e01297"},"PeriodicalIF":8.6,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0