Industrial & Engineering Chemistry Research最新文献

Acidified SiO2 Supported Fe-based Bimetal Oxide Catalyst with Resistance to High-Level Alkali Poisoning for CO Selective Catalytic Reduction of NO Removal of NOx

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c01126

Chenyang Wu, Na Li, Shiyuan Ran, Yuqing Pan, Xiaole Chen, Qulan Zhou

{"title":"Acidified SiO2 Supported Fe-based Bimetal Oxide Catalyst with Resistance to High-Level Alkali Poisoning for CO Selective Catalytic Reduction of NO Removal of NOx","authors":"Chenyang Wu, Na Li, Shiyuan Ran, Yuqing Pan, Xiaole Chen, Qulan Zhou","doi":"10.1021/acs.iecr.4c01126","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01126","url":null,"abstract":"Catalyst deactivation deduced by alkali metals remains an austere challenge for CO selective catalytic reduction of NO (CO-SCR). Herein, the acidified SiO2 supported Fe-based bimetal oxide catalyst was synthesized after active component screening and carrier acidification. The obtained FeCu-H catalyst exhibited excellent resistance to high-level alkali poisoning, even at low temperatures, with 78% NO conversion and 83% CO conversion achieved under 150 °C and a 1:1 molar ratio of Na to active metals. Characterizations and density functional theory (DFT) simulations revealed that the deactivation mechanism of CO-SCR catalysts by alkali metals can be ascribed to the deteriorated physicochemical properties, including crystallinity, specific surface area and pore structure, proportion of high-valence metals, NO adsorption and activation capacity, formation of oxygen vacancies, quantity of acid sites, and reducibility. Notably, the acidified carrier exhibited remarkable mitigation of these undesirable effects, thereby enhancing the CO-SCR activity. Our findings provide an inspirational strategy for developing reliable alkali-resistant SCR catalysts.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High Energy Electron Beam as an Effective Method for Molecular Modification and Thermoelectric Enhancement of PEDOT:PSS

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c00866

Yihan Wang, Rui Zhong, Jia He, Ziheng Xu, Hongwen Cao, Cheng Qing, Guo Pu, Zhijun Wang, Yueping Wang, Qinjian Yin, Kun Zhang

{"title":"High Energy Electron Beam as an Effective Method for Molecular Modification and Thermoelectric Enhancement of PEDOT:PSS","authors":"Yihan Wang, Rui Zhong, Jia He, Ziheng Xu, Hongwen Cao, Cheng Qing, Guo Pu, Zhijun Wang, Yueping Wang, Qinjian Yin, Kun Zhang","doi":"10.1021/acs.iecr.4c00866","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c00866","url":null,"abstract":"Electron beam (EB) irradiation is a powerful technology for molecular regulation and electronic structure modification of polymer materials. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films were irradiated under 10 MeV EB by tailoring the dosage from 2.5 to 160 kGy. An intriguing phenomenon occurs in the electrical conductivity (σ) of PEDOT:PSS, where it increases first and then reduces in all the low (2.5–30 kGy), medium (30–100 kGy), and high (100–160 kGy) dosage regimes, while the Seebeck coefficient nearly remains constant. The maximum σ and power factor (PF) values of irradiated PEDOT:PSS are both about 2.5 times of those of pristine PEDOT:PSS. Dominant cross-linking promotes thermal conductivity and mechanical stability, while chain scission leads to their reduction. Structural analysis and DFT computational results have revealed that oxygen containing functional groups can be easily introduced into insulating PSS chains during irradiation, which lowers band gap energy and contributes to the enhancement of the thermoelectric performance of PEDOT:PSS. Besides, the conformation changes of PEDOT from neutral (benzoid) to oxidized (quinoid) form also benefit the carrier transport of PEDOT:PSS. The findings shed light on the modification effect of EB on conducting polymers and provide an innovative treatment and considerable reference for the universal construction of conducting polymer systems with high thermoelectric performance.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Fe Dopants Intensify the Electrochemical Performance of LiNi0.60Mn0.40O2 Cathode Materials

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c01233

Jie Liao, Chenhui Wang, Jing Liu, Guixuan Shan, Xinyi Huo, Peng Sun, Ning Nie, Jinli Zhang, Wei Li

{"title":"Fe Dopants Intensify the Electrochemical Performance of LiNi0.60Mn0.40O2 Cathode Materials","authors":"Jie Liao, Chenhui Wang, Jing Liu, Guixuan Shan, Xinyi Huo, Peng Sun, Ning Nie, Jinli Zhang, Wei Li","doi":"10.1021/acs.iecr.4c01233","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01233","url":null,"abstract":"Co-free Ni-rich layered oxide cathodes need urgent development due to the continuously increasing demand for high-performance lithium-ion batteries. Here, the cathode materials of LiNi0.60Mn0.40O2 (NM) and Fe-doped LiNi0.60Mn0.40–xFexO2 (NMFe, x = 0.01–0.05) were prepared via a coprecipitation method associated with a high shear mixer, and the corresponding electrochemical performance was assessed. The optimal Fe-doped sample (NMFe-3) exhibits a discharge capacity of 185.3 mAh·g–1 (0.1C), higher than that of NM (182.5 mAh·g–1) at 2.8–4.5 V and 25 °C. Characterization based on XRD, XPS, HRTEM, EIS, CV, and GITT tests illustrates the presence of LiFeO2 crystal planes inside the NMFe samples, the lower values of the electrode/electrolyte interface impedance of the Fe-doped samples, and the charge-transfer impedance of the electrodes, as well as higher Li+ diffusion rate during charge/discharge processes. In situ XRD tests confirm that NMFe-3 exhibits excellent reversible phase transition during the charge/discharge process. DFT calculations disclose that Fe dopants would make Li layer spacings enlarged and lower the energy barrier of Li+ diffusion. This work provides a facile route to synthesize Fe-substituted Co-free Ni-rich cathode materials with excellent electrochemical performance for lithium-ion batteries.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Numerical Investigation of the Effect of Inhomogeneous Flow Behaviors inside a Particle Cluster in the OCM Reaction

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c01279

Sen Wang, Zhenhua Hao, Sufang Song, Zhiqing Wang, Yitian Fang

{"title":"Numerical Investigation of the Effect of Inhomogeneous Flow Behaviors inside a Particle Cluster in the OCM Reaction","authors":"Sen Wang, Zhenhua Hao, Sufang Song, Zhiqing Wang, Yitian Fang","doi":"10.1021/acs.iecr.4c01279","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01279","url":null,"abstract":"Fluidized bed reactors are commonly considered as more effective devices for the oxidative coupling of methane (OCM) reaction in comparison to traditional fixed bed reactors. In a fluidized bed, particles are prone to agglomerate to generate clusters, changing the original fluidization state and weakening the catalytic ability of catalyst particles. In this study, the inhomogeneous flow behaviors of gaseous species inside a particle cluster were investigated via the computational fluid dynamics (CFD) method compared to isolated particles. The effect of flow characteristics on the heat transfer and the spatial distribution of products of the OCM reaction were subsequently studied. The results indicated that obstruction caused by outer particles of the cluster resulted in the inhomogeneous flow behaviors inside the cluster, leading to the formation of hot spots, the excessive oxidation of C2H4, and the generation of CO2. C2H4 was found to be unevenly concentrated inside the particle cluster, with a higher level on the upwind side and a lower level on the downwind side, while it was more uniformly distributed in the isolated particle model. The C2H4 yield was significantly lower in the particle cluster model than that in the isolated particle model, with reductions of 47.66% from the peak value and 37.12% from the average value under different working conditions in a model of three-layer 13 particle structure. These results emphasized the uneven flow behaviors of fluids, which impeded the heat transfer between gas and solid and ultimately resulted in the formation of CO2 and the reduction of C2H4 yield. A prediction model was developed to describe the inhibition effect of uneven flow behaviors on the C2H4 yield. Furthermore, improving uneven flow behaviors to alleviate the cluster effect on reaction efficiency could be a key focus for future research.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Innovative Nanocomposites for Enhanced Photocatalytic Removal of Hazardous Pollutants: Probing the Role of CuO/Fe2O3 and MXene Synergy

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c00918

Khadijah MohammedSaleh Katubi, Nusrat Shaheen, Sonia Zulfiqar, Amna Irshad, Ziyad Awadh Alrowaili, Mohammed Sultan Al-Buriahi, Imran Shakir, Muhammad Farooq Warsi, Eric W. Cochran

{"title":"Innovative Nanocomposites for Enhanced Photocatalytic Removal of Hazardous Pollutants: Probing the Role of CuO/Fe2O3 and MXene Synergy","authors":"Khadijah MohammedSaleh Katubi, Nusrat Shaheen, Sonia Zulfiqar, Amna Irshad, Ziyad Awadh Alrowaili, Mohammed Sultan Al-Buriahi, Imran Shakir, Muhammad Farooq Warsi, Eric W. Cochran","doi":"10.1021/acs.iecr.4c00918","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c00918","url":null,"abstract":"In this work, copper oxide nanorods and iron oxide nanospheres were prepared via a coprecipitation method. Moreover, binary composite of copper and iron oxides (CF) and their ternary nanocomposite with MXene sheets (CF/MXene) were synthesized using an ultrasonication approach. The photocatalytic degradation of rhodamine B (RhB), a colorless organic pollutant benzoic acid, and harmful herbicide pendimethalin was investigated under visible light irradiation in the presence of a CF/MXene composite. The photocatalysts were examined using various physiochemical techniques. Ternary CF/MXene nanocomposite showed rapid adsorption of Rh.B with a greater capability than the other prepared photocatalysts. The dye removal after 120 min in the presence of CF/MXene was 94%, with the highest rate constant of 0.01794 min–1. The scavenging experiments proved that the photoactive species involved during the complete photocatalytic process followed the order HO• > O2•– > h+> e–. In short, the synergistic effect of binary composite (CF) and MXene sheets effectively facilitates the photocatalytic degradation of organic pollutants and shows promise for environmental remediation applications.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Review on Advances and Prospectives of Direct Air Capture: Thermodynamic Verification, Optimized Material Selection, and Technical Economic Assessment for the Application

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c00684

Chao Yi, Bin Guan, Zhongqi Zhuang, Junyan Chen, Jiangfeng Guo, Yujun Chen, Zeren Ma, Chenyu Zhu, SiKai Zhao, Hongtao Dang, Lei Chen, Kaiyou Shu, Yuan Li, Kuangyi Shi, Zelong Guo, Jingqiu Hu, Xuehan Hu, Zhen Huang

{"title":"Review on Advances and Prospectives of Direct Air Capture: Thermodynamic Verification, Optimized Material Selection, and Technical Economic Assessment for the Application","authors":"Chao Yi, Bin Guan, Zhongqi Zhuang, Junyan Chen, Jiangfeng Guo, Yujun Chen, Zeren Ma, Chenyu Zhu, SiKai Zhao, Hongtao Dang, Lei Chen, Kaiyou Shu, Yuan Li, Kuangyi Shi, Zelong Guo, Jingqiu Hu, Xuehan Hu, Zhen Huang","doi":"10.1021/acs.iecr.4c00684","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c00684","url":null,"abstract":"To mitigate the rising threat to global climate aroused by dramatically increasing anthropogenic CO2 emissions in recent years, the Paris Agreement sets a goal of limiting the rise in average global temperatures to 1.5 to 2 °C over preindustrial times. Traditional negative emissions technologies (NETs) are important approaches to reach that goal, but it is still not enough from a long-term perspective. Therefore, the research on direct air capture (DAC) is imperative now as a new promising approach. This paper first summarizes the different systems DAC can deal with, such as gas/solid, gas/liquid, and gas/polymer systems, and then illustrates the thermodynamic feasibilities of DAC under each condition. From a perspective of industrial practice, the review presents several hopeful chemical technologies from many aspects including capturing material, process flow, and techno-economic analysis, with contents allocated by the maturity of the technology. This review especially analyzes demonstration plants like Climeworks and explores experiences about how to transform early laboratory results based on unit operation into large-scale production. Finally, this review discusses the advantages and disadvantages of the technologies mentioned and provides some suggestions for future research and development.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Process for the Remediation of Titanogypsum (Red Gypsum) Using Weak Acid and CaCl2 to Produce Saleable α-Gypsum and FeCl2·4H2O

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c01190

Shuaifeng Liu, Edouard Asselin, Zhibao Li

{"title":"Process for the Remediation of Titanogypsum (Red Gypsum) Using Weak Acid and CaCl2 to Produce Saleable α-Gypsum and FeCl2·4H2O","authors":"Shuaifeng Liu, Edouard Asselin, Zhibao Li","doi":"10.1021/acs.iecr.4c01190","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01190","url":null,"abstract":"The disposal of titanogypsum, also known as red gypsum, which is generated during the titanium dioxide sulfate process, has become a significant environmental challenge. We propose a new process to recover iron impurities such as FeCl2·4H2O and to convert titanogypsum to saleable hemihydrate gypsum. For this purpose, we use HCl–FeCl2 solution generated via the reaction of H2SO4–FeSO4 with CaCl2 to leach iron hydroxide from titanogypsum. The hemihydrate precipitation and phase-transition kinetics of the reaction of HCl–H2SO4–FeSO4 with CaCl2 are experimentally investigated at 353 K. The common ion effect of CaCl2 in the FeCl2 solution for FeCl2·4H2O crystallization is predicted by NRTL modeling of the solid–liquid equilibria of the FeCl2–CaCl2–H2O system. High-quality, saleable α-gypsum and FeCl2·4H2O solids obtained by treating titanogypsum samples provided by a commercial processing plant further shows that the new process is feasible.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Ultrasound Induced Intensified Synthesis of Tricaprin Using the Homogeneous Acid Catalyst para-Toluene Sulfonic Acid

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-27 DOI: 10.1021/acs.iecr.4c01022

Viraj Khasgiwale, Jyotsna T. Waghmare, Parag R. Gogate

{"title":"Ultrasound Induced Intensified Synthesis of Tricaprin Using the Homogeneous Acid Catalyst para-Toluene Sulfonic Acid","authors":"Viraj Khasgiwale, Jyotsna T. Waghmare, Parag R. Gogate","doi":"10.1021/acs.iecr.4c01022","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01022","url":null,"abstract":"The intensified process for synthesis of tricaprin from capric acid and glycerol is demonstrated using ultrasound in the presence of para-toluene sulfonic acid (PTSA) as the catalyst. The reaction was performed under solvent-free conditions with a fixed stoichiometric ratio of 3:1 (capric acid:glycerol), focusing on understanding the effect of the ultrasonic power and duty cycle as well as process parameters such as temperature and catalyst loading on the conversion of capric acid to tricaprin. Maximum conversion of 95.5% was obtained under optimum conditions of 100 W power dissipation, 70% duty cycle, 0.5% PTSA loading, and 80 °C. Use of a conventional approach under the same optimum conditions resulted in only 68.92% conversion. The reaction was studied at different temperatures, with and without ultrasound, to estimate the kinetic rate constants. It was found that the reaction followed first-order kinetics with a rapid increase in rate constants with an increase in temperature along with ultrasound. The activation energies were 12.16 and 18.8 kJ/mol for the ultrasound-assisted process and the conventional process, respectively, suggesting the intensification brought about by the use of ultrasound. Overall, it was clearly determined that the ultrasound-based technique intensified the reaction rate and lowered the activation energy compared to the conventional approach.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Mixed-Integer Nonlinear Programming Model for Optimal Field Management for Carbon Capture and Storage

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-26 DOI: 10.1021/acs.iecr.4c00390

Ambrish Abhijnan, Kathan Desai, Jiaqi Wang, Alejandro Rodríguez-Martínez, Nouha Dkhili, Raymond Jellema, Ignacio E. Grossmann

引用次数: 0

Hierarchical Structural Evolution, Electrical and Mechanical Performance of Polypropylene Containing Intrinsic Elastomers under Stretching and Annealing for Cable Insulation Applications

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-06-26 DOI: 10.1021/acs.iecr.4c01348

Yu-Ting Zhang, Shuai Hou, De-Long Li, Ya-Jie Cao, Yun-Peng Zhan, Lei Jia, Ming-li Fu, Hua-Dong Huang

{"title":"Hierarchical Structural Evolution, Electrical and Mechanical Performance of Polypropylene Containing Intrinsic Elastomers under Stretching and Annealing for Cable Insulation Applications","authors":"Yu-Ting Zhang, Shuai Hou, De-Long Li, Ya-Jie Cao, Yun-Peng Zhan, Lei Jia, Ming-li Fu, Hua-Dong Huang","doi":"10.1021/acs.iecr.4c01348","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01348","url":null,"abstract":"Thermoplastic polypropylene (PP) insulated cables, an alternative to cross-linked polyethylene, offer superior insulation, high operating temperature, recyclability, cost-effectiveness, and a limitless cable length. However, challenges such as brittleness at low temperatures and limited flexibility at room temperature impede the application of PP in the field of cable insulation. To address these issues, in-reactor alloy technology seems to be a promising strategy, creating a multiphase system with intrinsic elastomer dispersion in a homopolypropylene matrix. Most of the research on PP-based multiphase systems focuses on enhancing mechanical properties by controlling microscopic structures. A comprehensive understanding of structural evolution during processing and its correlation with the electrical performance of PP thermoplastic insulation materials remains in its infancy. In this study, PP in-reactor alloys with intrinsic elastomers were utilized as model polymeric materials. A novel technology of “melting extrusion–hot stretching–thermal annealing” was employed to manipulate the elastomer phase morphology and crystalline structure. Severe interfacial mismatch during hot stretching initially compromised the mechanical and electrical properties. After thermal annealing, the mechanical and electrical properties were recovered, arising from the reduced rubber deformation and increased crystalline reorganization. The work presented here is expected to help our understanding of the dependence of electrical and mechanical properties on the microstructure of PP in-reactor alloys, providing a valuable reference for the structural design of cable insulation.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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