Material Design & Processing Communications最新文献

The Effect of Preexisting Fracture Angles on Crack Propagation in Sandstone

Material Design & Processing Communications Pub Date : 2025-01-15 DOI: 10.1155/mdp2/4664900

Omer Mughieda, Abdoullah Namdar, Marwan Alzaylaie, Abdul Syukor Abd.Razak

{"title":"The Effect of Preexisting Fracture Angles on Crack Propagation in Sandstone","authors":"Omer Mughieda, Abdoullah Namdar, Marwan Alzaylaie, Abdul Syukor Abd.Razak","doi":"10.1155/mdp2/4664900","DOIUrl":"https://doi.org/10.1155/mdp2/4664900","url":null,"abstract":"The fracture propagation on the rock causes failure and impacts the sustainability time of the structure. As part of the present work, sandstone with the variation of preexisting crack angle was simulated using the extended finite element method (XFEM). The crack propagation on sandstone has a preexisting fracture angle of 30°, 45°, and 60°, with an equivalent crack length. The impact of preexisting fracture angle on the possibility of crack propagation, failure mechanism, and displacement at a critical point of all models was studied. The numerical simulation revealed the crack angle of the model control vibration and its impact on the model’s seismic stability. The XFEM results are validated with reference to those available in the literature. Artificial neural networks (ANNs) are used for prediction by considering the training, testing, and validation process and analyzing prediction errors. The present simulation’s conclusion significantly supports the model’s displacement prediction with no crack propagation occurrence. In addition, by considering the preexisting fracture angle of a model, the load sustainability can be estimated.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2025 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/mdp2/4664900","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of Printability, Microstructure, and Hardness of Al-4Mn-1.3Mg-0.3Zr Alloy Produced by Powder Bed Fusion–Laser Beam

Material Design & Processing Communications Pub Date : 2025-01-06 DOI: 10.1155/mdp2/8059784

Sergey N. Grigoriev, Pavel Yu. Peretyagin, Roman S. Khmyrov, Alexandra Yu. Kurmysheva, Igor Yadroitsev, Anton du Plessis, Pavel Podrabinnik

{"title":"Study of Printability, Microstructure, and Hardness of Al-4Mn-1.3Mg-0.3Zr Alloy Produced by Powder Bed Fusion–Laser Beam","authors":"Sergey N. Grigoriev, Pavel Yu. Peretyagin, Roman S. Khmyrov, Alexandra Yu. Kurmysheva, Igor Yadroitsev, Anton du Plessis, Pavel Podrabinnik","doi":"10.1155/mdp2/8059784","DOIUrl":"https://doi.org/10.1155/mdp2/8059784","url":null,"abstract":"In this study, the microstructure and defects of an Al-Mn-Mg-Zr alloy produced by the Powder Bed Fusion–Laser Beam (PBF-LB) technology are investigated. The influence of the process parameters on the microstructure and defects is demonstrated. Aluminum alloys are usually prone to cracking during solidification. However, finding the optimal parameters of the PBF-LB process yielded three-dimensional specimens of Al-Mn-Mg-Zr alloy with densities reaching 99.6% of the theoretical value, free from cracks. It is shown that manganese not only precipitates as a brittle Al6Mn intermetallic compound after solidification but also forms a supersaturated solid solution of manganese in aluminum. The influence of the process parameters on the surface roughness of the manufactured samples and their microhardness was evaluated. It is also shown that the cooling rate of the melt pool has an effect on the microstructure of the samples obtained at the optimal process parameters.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2025 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/mdp2/8059784","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Joining 1.1- and 2.1-mm Al Sheets by Friction Stir Spot Welding

Material Design & Processing Communications Pub Date : 2025-01-06 DOI: 10.1155/mdp2/3110429

Isam Tareq Abdullah, Mohanad Kadhim Mejbel, Ammar A. H. Al-Filfily

{"title":"Joining 1.1- and 2.1-mm Al Sheets by Friction Stir Spot Welding","authors":"Isam Tareq Abdullah, Mohanad Kadhim Mejbel, Ammar A. H. Al-Filfily","doi":"10.1155/mdp2/3110429","DOIUrl":"https://doi.org/10.1155/mdp2/3110429","url":null,"abstract":"This study used friction stir spot welding (FSSW) to weld 1.1- and 2.1-mm AA6061-T6 sheets at 560, 710, 900, and 1120 rpm at a fixed dwell duration of 5 s. It was determined how much heat was supplied into the FSSW, and the cycle temperature that occurred throughout the FSSW technique was carefully documented. Both the sheet metals and the formed FSSW weldments were subjected to micro and macrostructure analysis, as well as a lap shear test and a hardness test. A scanning electron microscope (SEM) was also used to study the cracked surfaces. A broad variety of rotation rates, ranging from 560 to 1120 rpm, were used to construct error-free spot joints, as shown by the macroanalysis. The microstructural results may show acceptable mechanical characteristics of FSSW joints, which pertain to the grain refinement of the joints’ stir zone (SZ). It was discovered that the optimal welding condition for establishing spot welds with varying thicknesses of thin sheets was 710 rpm. This was achieved with a SZ lap shear resistance of 5020 ± 20 N and hardness of 99 ± 2 HV(100). The temperature fluctuation and Von Mises stress distribution, in the AA6061-T6 FSSW sheets, were analysed by using ABAQUS/CAE 2021 software. The simulated peak temperature is rather similar to the recorded one. On the other hand, by raising the rotation speed, the peak temperature at the welded joints rose. The friction stir welding (FSW) procedures have an impact on the residual stresses; on the other hand, the welding parameters are influenced by the welding temperature and mixing.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2025 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/mdp2/3110429","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drilling of Ti Grade-2 Alloy Using WC Tool in Micro-EDM and Its Multiparameter Optimization 在显微线切割中使用 WC 工具钻削 Ti Grade-2 合金及其多参数优化

Material Design & Processing Communications Pub Date : 2024-11-04 DOI: 10.1155/2024/7598358

Alemu Workie Kebede, Tanmoy Majumder, Promod Kumar Patowari, Chinmaya Kumar Sahoo

{"title":"Drilling of Ti Grade-2 Alloy Using WC Tool in Micro-EDM and Its Multiparameter Optimization","authors":"Alemu Workie Kebede, Tanmoy Majumder, Promod Kumar Patowari, Chinmaya Kumar Sahoo","doi":"10.1155/2024/7598358","DOIUrl":"https://doi.org/10.1155/2024/7598358","url":null,"abstract":"In this study, microelectrical discharge machining (μEDM) is used for drilling microholes on a thin sheet of Ti Grade 2 alloy of thickness 50 μm using a tungsten carbide (WC) microtool of diameter 470 μm. The main focus of the study is to understand the electrical and nonelectrical μEDM parameters on the accuracy, precision, and machining efficiency of drilled holes. The controllable process factors such as capacitance, voltage, tool rotation, and feed rate are considered when conducting the experiments based on a Taguchi L16 orthogonal array. The main effect and interaction contour plots have been prepared to investigate the influence of the process parameters on the response measures like material removal rate, overcut, circularity, and taper angle of the drilled holes. Analysis of variance (ANOVA) has been carried out to study the percentage contribution and significance of each process parameter on the performance measures. The micrographic images reveal the quality of the profiles and edges of the drilled holes. Further, the Overall Evaluation Criterion (OEC) is applied for multiparameter optimization.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/7598358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142574024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Rice Husk Additives on the Properties of Glass Based—Geopolymer at High Temperatures 稻壳添加剂对玻璃基-土工聚合物高温性能的影响

Material Design & Processing Communications Pub Date : 2024-11-01 DOI: 10.1155/2024/6448715

Shyma Hameed Mohammad, Taha H. Abood Al-Saadi, Entihaa G. Daway, Mohanad Kadhim Mejbel

{"title":"The Influence of Rice Husk Additives on the Properties of Glass Based—Geopolymer at High Temperatures","authors":"Shyma Hameed Mohammad, Taha H. Abood Al-Saadi, Entihaa G. Daway, Mohanad Kadhim Mejbel","doi":"10.1155/2024/6448715","DOIUrl":"https://doi.org/10.1155/2024/6448715","url":null,"abstract":"Foaming or porous geopolymers can be utilized in various engineering applications, including heat and acoustic insulations, as well as passive fire protection in building materials. They are ecofriendly materials, as no significant production power is required. In this study, geopolymers possessing foaming features involving lightweight and porous materials were successfully created through the reaction of sodium hydroxide solution 6 M with powder of waste glass MG without/with rice husk (RH) 20 wt.% of heat treated (212, 420, and 600 μm) utilized as the foaming agent. The effect of rice husk ash (RHA) and various sizes of RH additives on the thermal treatment (volume and weight changes, percentage), compressive strength, and microstructure (pore content) was assessed. The results show swelling (foaming behavior) for MG-N6, MGB-N6, MGR212-N6, and MGR600-N6 at 550°C, unlike the MGR420-N6 formula. Also, a high-volume change (percentage) for MGR420-N6 paste at 650°C was noticed. Additionally, foaming behavior (high volume expansion) appeared for all thoughtful pastes after treatment at 750°C. The weight loss for all specimens in the range of 10%–27% and a high percentage of weight changes for MGR400-N6 and MGR600-N6 were noticed. Low values of compressive strength (2.74–14.5 MPa) were recorded for all formulas studied. These synthesized materials, geopolymers containing glass waste and RH powder, resulting from this study, are highly recommended, mostly for thermal and acoustic insulation materials demanding lightweight, porosity, and low mechanical properties.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/6448715","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142563019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructural Changes, Tensile, and Hardness Behaviour of Welded Ti-6Al-4V Plates 焊接 Ti-6Al-4V 板材的微结构变化、拉伸和硬度行为

Material Design & Processing Communications Pub Date : 2024-10-22 DOI: 10.1155/2024/3444959

Saurabh Dewangan, Shlok Mohite, Yash Bhadoriya, Ayush Agarwal, Adhir Chandra Paul

{"title":"Microstructural Changes, Tensile, and Hardness Behaviour of Welded Ti-6Al-4V Plates","authors":"Saurabh Dewangan, Shlok Mohite, Yash Bhadoriya, Ayush Agarwal, Adhir Chandra Paul","doi":"10.1155/2024/3444959","DOIUrl":"https://doi.org/10.1155/2024/3444959","url":null,"abstract":"In this work, Ti-6Al-4V alloy was joined by tungsten inert gas (TIG) welding and the plates were undergone through optical microscopy test, elemental study, tensile test, hardness test, and fractographic observation. Plate-A, with low value of current input, possesses α + β bimodal structure at BM, acicular martensite at HAZ, and Widmanstätten structure with a low amount of martensite at the WZ. Plate-B, with comparatively higher value of current during welding, possesses similar structure at the BM. The HAZ area was comparatively lesser with significant martensite formation, and the WZ contains considerable formation of Widmanstätten structure. The elemental composition of BM and WZ was established by EDS. The stress-strain curves for both plates show that plate-B has almost 3%, 8%, and 7% greater UTS, YS, and elongation, respectively, than plate-A. The significant formation of Widmanstätten structure has made the WZ of plate-B more ductile and tough, although the fractography analysis of both the plates has shown macrodimples and flowing sign of metal as indicators of good ductility.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/3444959","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142525101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dye-Sensitized Solar Cell of Silicon Dioxide–Titanium Dioxide Photoanode With Polypyrrole/Sodium Dodecyl Sulfate Low-Cost Counter Electrode 具有聚吡咯/十二烷基硫酸钠低成本反电极的二氧化硅-二氧化钛光阳极染料敏化太阳能电池

Material Design & Processing Communications Pub Date : 2024-08-20 DOI: 10.1155/2024/9962496

Oraas Adnan Hatem, Nuhad Saad, Sabrean F. Jawad

{"title":"Dye-Sensitized Solar Cell of Silicon Dioxide–Titanium Dioxide Photoanode With Polypyrrole/Sodium Dodecyl Sulfate Low-Cost Counter Electrode","authors":"Oraas Adnan Hatem, Nuhad Saad, Sabrean F. Jawad","doi":"10.1155/2024/9962496","DOIUrl":"https://doi.org/10.1155/2024/9962496","url":null,"abstract":"To produce a better connection and greater electron transfer efficiency between the TiO2 particles, as well as to eliminate agglomeration and increase the dispersion of TiO2 powders, a silicon dioxide/titanium dioxide (SiO2/TiO2) nanocomposite has been used as a photoanode in this study. An attempt was made to construct dye-sensitized solar cells (DSSCs) at a low cost with reasonable efficiency by replacing the highly costly platinum counter electrode with polypyrrole/sodium dodecyl sulfate (PPy + SDS) as Counter Electrode 1 (C1) and PPy/SDS/multiwalled carbon nanotube (PPy + SDS + MWCNT) as Counter Electrode 2 (C2), using Ru-based dyes Z907, pomegranate (Pom) dye, arugula (Aru) dye, and hibiscus dye as photosensitizers. The working electrode composite was deposited on fluorine-doped tin oxide (FTO) glass using a thermal chemical spraying approach, while the counter electrodes were produced using an electropolymerization method. The structural and optical characteristics are fully examined using several characterization techniques such as X-ray diffraction (XRD), Raman scattering, field-emission scanning electron microscopy (FESEM), and atomic force microscopy (AFM). The photovoltaic properties of the constructed DSSCs were assessed under light irradiation (100 mW/cm2). When compared to the reference cell based on the Pt counter electrode, which has an efficiency of 8.4%, the measured current–voltage (I–V) curve shows that the efficiency of DSSC in the case of Z907 dye with C1 and C2 was 3.037% and 3.743%, respectively. This suggests that the low-cost prepared DSSCs have good efficiency. Natural dyes show an efficiency range of 1.317%–0.66%, which indicates a moderate level of sensitivity.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/9962496","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142013472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study the Wear Characteristics for Ni-ZrO2 and Ni-Al2O3 Nanocomposite Coatings Produced by Electroless Deposition Technique 研究无电解沉积技术制备的 Ni-ZrO2 和 Ni-Al2O3 纳米复合涂层的磨损特性

Material Design & Processing Communications Pub Date : 2024-07-30 DOI: 10.1155/2024/4907211

Hiba M. Algailani, Suha I. Al-Nassar, Adel K. Mahmoud, Hanaa A. Al-kaisy, Ahmed A. A. G. Alrubaiy

{"title":"Study the Wear Characteristics for Ni-ZrO2 and Ni-Al2O3 Nanocomposite Coatings Produced by Electroless Deposition Technique","authors":"Hiba M. Algailani, Suha I. Al-Nassar, Adel K. Mahmoud, Hanaa A. Al-kaisy, Ahmed A. A. G. Alrubaiy","doi":"10.1155/2024/4907211","DOIUrl":"https://doi.org/10.1155/2024/4907211","url":null,"abstract":"Metal matrix nanocomposite coatings are promising for tribological applications given their superior hardness and wear resistance compared to metals. The point of this study was to describe the shape and long-term performance of nickel-based coatings that were put on stainless steel using electroless codeposition and made stronger with nanoparticles of zirconia (ZrO2) and alumina (Al2O3). Scanning electron microscopy showed the uniform incorporation of nanoceramics within nickel matrices. Pin-on-disk tribotests evaluated wear performance across loads from 5 to 15 N and sliding speeds up to 480 cm/min. Increasing nanoparticle content from 2 to 4 g/L markedly reduced wear rate due to enhanced hardness and density. At all tested loads, Ni-ZrO2 and Ni-Al2O3 nanocomposites exhibited considerably lower wear than monolithic nickel. The nanometal matrix particles hindered plastic deformation, with weight losses up to 68% lower than base nickel. Initially, wear resistance rose proportionally with sliding speed resulting from protective oxide layers until abrasive wear prevailed. The nanoparticle reinforcement dramatically extended durability, making it ideal for tribological systems involving mixed or abrasive conditions. More research needs to be done to find the best compositions and other matrix materials to use for these nanoscale strengthening effects.","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/4907211","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of the Dielectric Properties of Tropical Wood Species for Application to Millimetre-Band Antennas 应用于毫米波段天线的热带木材介电性能测量结果

Material Design & Processing Communications Pub Date : 2024-06-13 DOI: 10.1155/2024/7777701

Ndanga Adamou Eric, Eke Samuel, Matanga Jacques, Doka Yamigno Serge, Tan Phu Vuong

{"title":"Measurement of the Dielectric Properties of Tropical Wood Species for Application to Millimetre-Band Antennas","authors":"Ndanga Adamou Eric, Eke Samuel, Matanga Jacques, Doka Yamigno Serge, Tan Phu Vuong","doi":"10.1155/2024/7777701","DOIUrl":"https://doi.org/10.1155/2024/7777701","url":null,"abstract":"<div>\u0000 The purpose of this article is to determine the dielectric characteristics of wood species from Central African forests at microwave frequency for use as patch antenna substrate. The measurements were carried out on dried wood at frequencies of 930 MHz and 2.48 GHz. The suitability of the wood as a printed microwave antenna substrate will be determined by the values taken by the complex parameters “permittivity” ε′, loss tangent “tanδ,” and “permeability” μ = 1. The measurement method chosen in this work is the method of small disturbances in a cylindrical cavity operating in the TM010 mode. The values obtained for each species confirm the anisotropic nature of the wood. These measurements will also confirm that losses, which are the main criterion for selecting wood as substrate, increase with the wood species category and its density. The design and simulation results at 28 GHz of a travelling wave antenna on a wood substrate show that antennas can radiate with these materials in the millimetre band.\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/7777701","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141315331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Processing Parameters on the Process and Product Properties of Polylactic Acid/Natural Rubber Blown Films 加工参数对聚乳酸/天然橡胶吹塑薄膜的加工和产品特性的影响

Material Design & Processing Communications Pub Date : 2024-05-31 DOI: 10.1155/2024/5568117

Chananchida Pongpakdee, Kornchanok Akaradechakul, Cattaleeya Pattamaprom

{"title":"The Influence of Processing Parameters on the Process and Product Properties of Polylactic Acid/Natural Rubber Blown Films","authors":"Chananchida Pongpakdee, Kornchanok Akaradechakul, Cattaleeya Pattamaprom","doi":"10.1155/2024/5568117","DOIUrl":"https://doi.org/10.1155/2024/5568117","url":null,"abstract":"<div>\u0000 This research investigates key parameters in the pilot-scale production of polylactic acid (PLA)/natural rubber (NR) blends for film-blowing applications. The study is aimed at analyzing the influence of process parameters including screw speed, output rate, compounding steps, and screw configuration on die stock pressure, temperature, %Torque, and retention time. The compounds were characterized for morphology, melt flow index, and film processability, whereby the resulting films were evaluated for surface appearance, transparency, and mechanical properties. It was found that the MFI value could be a good indicator of effective natural rubber dispersion, where higher screw speed and output rate contributed to slightly improved rubber dispersion due to higher shearing effects. Furthermore, an increase in the number of compounding steps and screw configurations with moderate mixing intensity led to further improved rubber dispersion. This was reflected by the reduced average rubber size from 4.1 to 1.0 μm, lower viscosity (higher MFI), smoother films, and improved mechanical properties.\u0000 </div>","PeriodicalId":100886,"journal":{"name":"Material Design & Processing Communications","volume":"2024 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/5568117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141245933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0