Polymer Bulletin最新文献_第8页

Advancements in chitosan membranes for promising secondary batteries 有望用于二次电池的壳聚糖膜的研究进展

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-08-04 DOI: 10.1007/s00289-024-05448-x

Prasham Sheth, Dhruv Patil, Balasubramanian Kandasubramanian, Neelaambhigai Mayilswamy

{"title":"Advancements in chitosan membranes for promising secondary batteries","authors":"Prasham Sheth, Dhruv Patil, Balasubramanian Kandasubramanian, Neelaambhigai Mayilswamy","doi":"10.1007/s00289-024-05448-x","DOIUrl":"10.1007/s00289-024-05448-x","url":null,"abstract":"<div><p>Secondary batteries, or rechargeable batteries, have revolutionized various industries by offering the ability to be reused after depletion. Membranes in secondary batteries act as separators, preventing direct contact between electrodes while facilitating ion transport, crucial for energy storage and preventing short circuits. Despite their theoretical ability to be used infinitely, real-time applications face challenges, including the inefficiency of available membranes. This review focuses on the use of chitosan, a biopolymer derived from chitin, in three promising secondary batteries: vanadium redox flow batteries, Aq. zinc batteries, and lithium-ion batteries due to their wide range of applications and promising future scope. For lithium-ion batteries, <i>N</i>-succinyl chitosan-chitosan and chitosan–lithium membranes offer potential improvements in ionic conductivity and mechanical strength, while in Aq. zinc battery chitosan-based carbon membrane and phosphorylcholine zwitterionic protective layer reduces the dendrite formation and alleviates side reactions and for vanadium redox flow battery chitosan modified batteries aim to reduce vanadium ion crossover. Using a chitosan-based membrane increases the energy efficiency of the vanadium redox flow battery to 88.6% from 60% and sustains an Aq. zinc ion battery for up to 2000 cycles. Comprehensively, this review also imparts a roadmap leading to the future prospects of chitosan biopolymer-based secondary batteries to ameliorate the energy density, and overall electrochemical performance of chitosan-derived batteries by modifying the electrode material, for heading toward a green, and sustainable energy storage system.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15319 - 15348"},"PeriodicalIF":3.1,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A piece-wise reconstruction of some mechanistic steps in Pickering emulsion polymerization: a semicontinuous styrene montmorillonite-supported process as a case example 片断重构皮克林乳液聚合的某些机械步骤：以半连续苯乙烯蒙脱石支撑工艺为例

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-08-03 DOI: 10.1007/s00289-024-05436-1

Diego Saldaña Rodriguez, Benoit Fouconnier, Francisco López-Serrano

{"title":"A piece-wise reconstruction of some mechanistic steps in Pickering emulsion polymerization: a semicontinuous styrene montmorillonite-supported process as a case example","authors":"Diego Saldaña Rodriguez, Benoit Fouconnier, Francisco López-Serrano","doi":"10.1007/s00289-024-05436-1","DOIUrl":"10.1007/s00289-024-05436-1","url":null,"abstract":"<div><p>Building on traditional emulsion polymerization research, which continues to yield results up to the present day, techniques have emerged to produce hybrid materials. One such technique is Pickering emulsion polymerization, with numerous industrial applications. Despite a growing interest in Pickering emulsion polymerization, the intrinsic mechanisms involved have been based mainly on the findings of classical emulsion polymerization. In this work, by relying on a minimum of assumptions and using a simple model and experimental data on conversion and particle size, we obtain information about the prevailing mechanisms. More specifically, we present four main findings based on data reported previously in the literature. First, in contrast to the three rate-of-reaction intervals reported in classical emulsion polymerization, the integro-differential method yielded only two rate-of-reaction intervals against conversion. Second, a master curve is constructed by plotting the reaction rate against overall conversion, showing a maximum of approximately 55% conversion. Third, despite having a semicontinuous process, monomer concentration inside the particles is not constant. Finally, particle density is a strong function of the Pickering agent concentration, where two fitting parameters (nucleation and coagulation) allowed an accurate description for the particle number time evolution. Both parameters showed a power-law dependence with clay concentration.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15865 - 15881"},"PeriodicalIF":3.1,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-024-05436-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141945241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and characterization of Co3O4/carbon nanotube-filled PVC nanocomposites for medium-voltage cable applications 用于中压电缆的 Co3O4/碳纳米管填充聚氯乙烯纳米复合材料的模拟与表征

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-08-02 DOI: 10.1007/s00289-024-05435-2

Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir

{"title":"Simulation and characterization of Co3O4/carbon nanotube-filled PVC nanocomposites for medium-voltage cable applications","authors":"Sheikha A. Alkhursani, N. Aldaleeli, A. M. Elbasiony, Mohamed Mohamady Ghobashy, Mohamed Madani, Samera Ali Al-Gahtany, Ahmed Zaher, A. I. Sharshir","doi":"10.1007/s00289-024-05435-2","DOIUrl":"10.1007/s00289-024-05435-2","url":null,"abstract":"<div><p>This study investigates the simulation of electric field distribution and the characterization of Co<sub>3</sub>O<sub>4</sub>/carbon nanotube (CNT)-filled polyvinyl chloride (PVC) nanocomposites for potential applications in medium-voltage cables. The nanocomposites were prepared by incorporating Co<sub>3</sub>O<sub>4</sub> nanoparticles and varying concentrations of CNTs (0, 0.1, 0.15, 0.20, and 0.25% by weight) into a PVC matrix. The UV–Vis spectroscopy revealed an absorption edge of 3.75 eV, a direct bandgap of 5.15 eV, an Urbach tail energy of 0.4594 eV, and a carbon cluster parameter of 44.617 for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite film. Incorporating CNTs enhanced the AC conductivity, dielectric constant, and dielectric loss compared to the pure Co<sub>3</sub>O<sub>4</sub> sample. The highest AC conductivity (7.46 × 10<sup>–4</sup> S/m) was achieved for the PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposite. COMSOL Multiphysics simulations were performed to study the electric field distribution in medium-voltage cables made of PVC and PVC/Co<sub>3</sub>O<sub>4</sub> + 0.25% CNT nanocomposites. The simulations revealed a more uniform electric field distribution in the nanocomposite cable than the pure PVC cable, owing to Co<sub>3</sub>O<sub>4</sub> nanoparticles and CNTs. The novelty of this study is improved uniformity in the electric field distribution for medium-voltage cable applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15841 - 15864"},"PeriodicalIF":3.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Statistical approach for newly isolated and identified microbial lipases production 新分离和鉴定的微生物脂肪酶生产的统计方法

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-08-01 DOI: 10.1007/s00289-024-05445-0

Hammad Majeed, Tehreema Iftikhar, Sumaira Mustafa

{"title":"Statistical approach for newly isolated and identified microbial lipases production","authors":"Hammad Majeed, Tehreema Iftikhar, Sumaira Mustafa","doi":"10.1007/s00289-024-05445-0","DOIUrl":"10.1007/s00289-024-05445-0","url":null,"abstract":"<div><p>United Nations sustainable development goals (SDGs) are mended for the betterment of all living species on this earth. Climate change planning consistently revolves around sustainable products derived from natural raw materials. Our recent research has specifically targeted the optimization of biocatalyst production and microorganism growth through solid-state fermentation. In this research work, we utilized <i>Aspergillus niger</i> [S1], isolated from a mixed vegetable pickle. Initially, batch tests were conducted, altering the concentrations of five ingredients—sucrose, molasses, yeast extract, sunflower oil, and Tween-80 to achieve maximum extracellular biocatalyst (Lipases) production. Maximum extracellular biocatalyst activity was achieved in the presence of sucrose, molasses, yeast extract, sunflower oil and tween-80 at the rate of 6.39 ± 1.73<sup>a</sup> U/mL, 2.2 ± 1.09<sup>a</sup> U/mL, 2.22 ± 0.48<sup>a</sup> U/mL, 3.06 ± 1.27<sup>a</sup> U/mL and 2 ± 0.87<sup>a</sup> U/mL respectively using different concentration of 1 g/L, 4 g/L, 0.5 g/L, 3.5% v/v and 1% v/v respectively through one factor at a time approach. Response surface methodology was employed to examine the interaction of critical medium components and their impact on biocatalyst activity. The range and level of selected independent variables were explored using the Box-Behnken experimental design. The maximum production was observed at the 6th run, reaching 13.0 U/mL by using combination of various critical medium components <i>i.e.,</i> sucrose 3 g/L, molasses 5 g/L, yeast extract 1.5 g/L, sunflower oil 2.25% v/v, and Tween-80 0.5% v/v. Regarding the basal quantity of substrate, 10 g of mustard meal was also utilized.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15823 - 15840"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combustion characteristics and thermal degradation kinetics of microporous triazine-based organic polymers: the role of organic linkers 微孔三嗪基有机聚合物的燃烧特性和热降解动力学：有机连接体的作用

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-31 DOI: 10.1007/s00289-024-05447-y

Suha S. Altarawneh

{"title":"Combustion characteristics and thermal degradation kinetics of microporous triazine-based organic polymers: the role of organic linkers","authors":"Suha S. Altarawneh","doi":"10.1007/s00289-024-05447-y","DOIUrl":"10.1007/s00289-024-05447-y","url":null,"abstract":"<div><p>This work aims to investigate the combustion characteristics, kinetics triplets, and thermodynamic parameters of microporous triazine-based organic polymers. The polymers were prepared by the incorporation of aliphatic and aromatic diamines (e.g., 1,4-hexane diamine (Hex) and 1,4-phenylenediamine (Bz)) with triazine core (Tr) via polycondensation polymerization. Both polymers Tr–Hex-diamine and Tr–Bz-diamine are microporous with a surface area of 212 and 524 m<sup>2</sup>/g, respectively. The successful synthesis was confirmed from FTIR and solid-state <sup>13</sup>C CP-MAS. The combustion index (SN), kinetic triplets, apparent activation energy (<i>Ea</i>), pre-exponential factor (<i>A</i>), and thermodynamic parameters were estimated from the thermal degradation profiles of the polymers (TGA) at different heating rates. At the maximum heating rate (20 °C/min) the SN of Tr–Bz-diamine is 2.08, while it reached 4.2 for Tr–Hex-diamine, which indicates the high rate of combustion of the aliphatic hexyl chains. The other kinetic and thermodynamic parameters were determined by applying model-free isoconversional methods including Kissinger–Akahira–Sunose (KAS), Flynn–Wall–Ozawa (OFW), and Kissinger. From KAS, the average Ea for Tr–Bz-diamine and Tr–Hex-diamine are 163.4 and 147.8 kJ/mol, while 169.2 and 151.7 kJ/mol from OFW calculations. These values are higher in the case of the Kissinger method. The degradation mechanism and the rate of decomposition were determined from the Coats–Redfern method and by applying the master plot methods. Comparing the <i>Ea</i> values of the CR method with the integral method shows the possibility of the chemical reaction F3 mechanism beside multiple parallel reactions as shown by the master plot. The pre-exponential factor (<i>A</i>) along with the thermodynamic parameters (e.g., heat of enthalpy, entropy, and Gibbs free energy) were also determined and found to be within the same range of all methods.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15791 - 15821"},"PeriodicalIF":3.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isolation and characterization of amorphous nanocellulose producing Comamonas terrae YSZ sp. from pineapple wastes 从菠萝废料中分离并鉴定产生无定形纳米纤维素的 Comamonas terrae YSZ sp.

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-31 DOI: 10.1007/s00289-024-05433-4

Yamunathevi Mathivanan, Shafinaz Shahir, Zaharah Ibrahim, Nik Ahmad Nizam Nik Malek

{"title":"Isolation and characterization of amorphous nanocellulose producing Comamonas terrae YSZ sp. from pineapple wastes","authors":"Yamunathevi Mathivanan, Shafinaz Shahir, Zaharah Ibrahim, Nik Ahmad Nizam Nik Malek","doi":"10.1007/s00289-024-05433-4","DOIUrl":"10.1007/s00289-024-05433-4","url":null,"abstract":"<div><p>Bacterial nanocellulose (BNC) currently has emerged as a potential biopolymer that can be used for various industrial applications. However, the major concern is the limitation of the bacteria used for BNC production on a larger scale. This study aimed to isolate and identify potential nanocellulose-producing bacteria from pineapple wastes. In this study, 11 isolates were screened and the F1 isolate, which produced the highest BNC yield was chosen for 16S rRNA sequencing. Based on the 16S rRNA analysis, <i>Comamonas terrae</i> YSZ sp. (OQ592726.1) was the best BNC producer with 1.68 ± 0.19 g/L yield. The physicochemical characteristics from FESEM analysis revealed that <i>C. terrae</i> YSZ sp. produced amorphous BNC, with fewer nanofibrils. The XRD analysis showed that the BNC produced had a 19.3% of crystallinity index. To the best of our knowledge, this is the first work reporting the isolation of <i>C. terrae</i> YSZ sp. from pineapple wastes with more amorphous regions providing an interesting alternative for heavy metal removal potentials.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15775 - 15789"},"PeriodicalIF":3.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Pb (II) ions using chitosan oligosaccharide/carboxymethyl starch blend crosslinked with glutaraldehyde: a study on batch adsorption 利用与戊二醛交联的壳聚糖低聚糖/羧甲基淀粉混合物去除铅 (II) 离子：批量吸附研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-30 DOI: 10.1007/s00289-024-05442-3

T. N. Balaji, K. S. Venkatesh, Sandhanasamy Devanesan, Mohamad S. AlSalhi, K. Vijayalakshmi, P. Supriya Prasad, P. N. Sudha, A. K. S. Ibrahim Sheriff

{"title":"Removal of Pb (II) ions using chitosan oligosaccharide/carboxymethyl starch blend crosslinked with glutaraldehyde: a study on batch adsorption","authors":"T. N. Balaji, K. S. Venkatesh, Sandhanasamy Devanesan, Mohamad S. AlSalhi, K. Vijayalakshmi, P. Supriya Prasad, P. N. Sudha, A. K. S. Ibrahim Sheriff","doi":"10.1007/s00289-024-05442-3","DOIUrl":"10.1007/s00289-024-05442-3","url":null,"abstract":"<div><p>Heavy metal removal from wastewater has emerged as a major environmental concern on a global scale. The primary objective of this study was to determine how well lead (Pb) can be removed from wastewater by adsorptive processes using a chitosan-oligosaccharide-based hybrid (chitosan oligosaccharide (COS)/carboxymethyl starch binary blend material developed in the presence of glutaraldehyde (Glu). The amine and hydroxyl groups in the COS structure, the hydroxy and carboxy groups in the carboxymethyl starch, and the imine groups created when the amino group of COS reacts with the aldehydic group glutaraldehyde aid in the removal of Pb ions. FTIR, SEM, and X-ray diffraction were used to characterize the COS/CMC + Glu blend. Batch adsorption experiments, in which various factors including the impact of initial concentration, the dose of adsorbent, and the duration of contact, were used to analyze the removal of ions. The pH-dependent adsorption of Pb ions peaked at pH 5. The favorability of the reported experimental data was confirmed using various theoretical models, such as the Freundlich, the Langmuir isotherms, and pseudo-first- and pseudo-second-order kinetics. Adsorption was best fit by the pseudo-second-order and Langmuir isotherms.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15727 - 15756"},"PeriodicalIF":3.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141872978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Harnessing magnetic polymeric composites for sustainable treatment of reactive Orange-122 dye and textile effluent: batch and column studies 利用磁性聚合物复合材料对活性橙-122 染料和纺织污水进行可持续处理：间歇式和柱式研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-30 DOI: 10.1007/s00289-024-05438-z

Ghulam Mustafa, Ruba Munir, Noha Said Bedowr, Muhammad Rizwan, Fazila Younas, Mohammad Abul Farah, Mohamed Farouk Elsadek, Saima Noreen

{"title":"Harnessing magnetic polymeric composites for sustainable treatment of reactive Orange-122 dye and textile effluent: batch and column studies","authors":"Ghulam Mustafa, Ruba Munir, Noha Said Bedowr, Muhammad Rizwan, Fazila Younas, Mohammad Abul Farah, Mohamed Farouk Elsadek, Saima Noreen","doi":"10.1007/s00289-024-05438-z","DOIUrl":"10.1007/s00289-024-05438-z","url":null,"abstract":"<div><p>Water contamination is one of the biggest environmental issues the world is currently experiencing, and it is a result of growing industry and urbanization. The main causes of contaminated water are the textile industry and the colours included in waste effluent. The production of polymeric ferrite composites is the focus of this investigation. To the best of our knowledge these combinations of polymer and ferrites have not been synthesized before. The purpose of using these polymeric ferrite composites was to eliminate the artificially reactive Orange-122 dye from aqueous solutions. Various factors were optimized to get the best clearance, including pH (2–12), composite dose (0.01–0.3 g), contact time (10–120 min), temperature, and beginning dye concentration (20–200 mg/L). The acidic range (2–5) was shown to have the maximum dye removal of reactive dye, and the ideal composite dose was found to be 0.03 g/50 mL. Within the first sixty to ninety minutes, balance was reached. At 120–150 mg L<sup>–1</sup>, the maximum level of reactive dye clearance was attained. As the temperature was raised, the chosen dye was more effectively removed, indicating that the process was endothermic. Various models, including thermodynamic, kinetic, and equilibrium models, were used to verify.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15693 - 15726"},"PeriodicalIF":3.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on pyrolysis behavior and reaction mechanism estimation of fireproof sealant with TG/FTIR analysis 利用 TG/FTIR 分析法研究防火密封胶的热解行为和反应机理估算

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-30 DOI: 10.1007/s00289-024-05440-5

Xin Liu, Jiaqing Zhang, Fengju Shang, Lingxin He, Wei Liu, Rui Liu, Yi Guo, Yanming Ding

{"title":"Study on pyrolysis behavior and reaction mechanism estimation of fireproof sealant with TG/FTIR analysis","authors":"Xin Liu, Jiaqing Zhang, Fengju Shang, Lingxin He, Wei Liu, Rui Liu, Yi Guo, Yanming Ding","doi":"10.1007/s00289-024-05440-5","DOIUrl":"10.1007/s00289-024-05440-5","url":null,"abstract":"<div><p>Fireproof sealant is a common sealing material and has a wide range of applications, which has the dual performance of sealing and fireproof. To figure out its thermal degradation behavior, the thermogravimetric experiments combined with Fourier transform infrared technology were conducted at multiple heating rates. The results showed that the pyrolysis process could be separated into three stages and the explicit reaction equations were revealed corresponding to each stage: First, ammonium polyphosphate decomposed to produce a large amount of inorganic acid, along with a small amount of ammonia and water. Then, a large amount of ammonia gas was produced from melamine decomposition, and the substrate including acrylic resin began to react. Furthermore, the remaining base materials and intermediate carbonized materials continued to be decomposed to produce large amounts of carbon dioxide, water and residue. The experimental results indicated that the various components of fireproof sealant could cooperate closely and played a synergistic role in flame retardant, which could be an important reference value for guiding the improvement of fire sealing materials.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 17","pages":"15757 - 15773"},"PeriodicalIF":3.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physicochemical properties of biocomposites prepared by thermoset resin in situ polymerization 热固性树脂原位聚合制备的生物复合材料的物理化学特性

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-07-29 DOI: 10.1007/s00289-024-05434-3

Moise Manga, Elhadji Babacar Ly, Mamadou Lo, Ramzi Khiari, Abdou Karim Diallo, Mohamed Naceur Belgacem

引用次数: 0