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Mechanical, Thermal Conductivity and Water Absorption of Hybrid Nano-Silica Coir Fiber Mat Reinforced Epoxy Resin Composites 纳米二氧化硅纤维垫增强环氧树脂复合材料的力学、导热性和吸水性
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-07-01 DOI: 10.37358/mp.22.2.5598
Balaji Venkatesan, Selvam Ramasamy, Jayabalakrishnan Duraivelu, Joji Thomas, Karthikeyan Thangappan, Subburaj Venkatesan, P. Paulraj
{"title":"Mechanical, Thermal Conductivity and Water Absorption of Hybrid Nano-Silica Coir Fiber Mat Reinforced Epoxy Resin Composites","authors":"Balaji Venkatesan, Selvam Ramasamy, Jayabalakrishnan Duraivelu, Joji Thomas, Karthikeyan Thangappan, Subburaj Venkatesan, P. Paulraj","doi":"10.37358/mp.22.2.5598","DOIUrl":"https://doi.org/10.37358/mp.22.2.5598","url":null,"abstract":"\u0000The goal of this research is to show that epoxy resin (ER) / coir fiber mats (CFM) hybrid composite laminates with nano-silica particle (NP) reinforcement improve mechanical characteristics and water absorption. Lately, it has been employed in automotive, aerospace, and structural industries where coir fiber-reinforced polymers are safe for ecologically friendly composite applications. The Compression - Hand layup technique is used to make the epoxy composites reinforced with natural coir fibres and nano-silica particles in various weight fractions (5, 10, 15, 20 and 25% by weight). Mechanical parameters such as tensile, flexural, compressive, impact strength, thermal conductivity and also water absorption of composites are evaluated in this study. Scanning electron microscopy is also used to analyze the surface morphology of cracked surfaces (SEM). Hybrid nanosilica-coir fiber mat reinforced epoxy resin has decreased water absorption (percent) suggesting better mechanical qualities. Furthermore, the hybrid epoxy-containing 20% nano-silica coir mat improves all the said mechanical properties.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42862023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies Regarding Some Mechanical Properties for a Hybrid Resin Used to Build Composites Reinforced with Corn Cob Powder 玉米芯粉增强复合材料复合树脂的力学性能研究
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-07-01 DOI: 10.37358/mp.22.2.5581
A. I. Rădoi, I. Ciuca, M. Stănescu, D. Bolcu, C. Nicolicescu, C. Miriţoiu, M. Bogdan
{"title":"Studies Regarding Some Mechanical Properties for a Hybrid Resin Used to Build Composites Reinforced with Corn Cob Powder","authors":"A. I. Rădoi, I. Ciuca, M. Stănescu, D. Bolcu, C. Nicolicescu, C. Miriţoiu, M. Bogdan","doi":"10.37358/mp.22.2.5581","DOIUrl":"https://doi.org/10.37358/mp.22.2.5581","url":null,"abstract":"\u0000In this paper some mechanical characteristics of a composite made from a hybrid resin and reinforced with corn cob powder are presented. The hybrid resin was made with a combination between the natural dammar resin combined with a small percentage of acrylic one. The synthetic resin was inserted in order to increase the polymerization process which was produced in about 24 h. In the fist part of the investigation, from the compression test, some mechanical characteristics are determined, such as: breaking strength or maximum force obtained at breaking. Then, by using the SEM analysis and EDS spectrometry, some samples with 50% dammar and 60% dammar were investigated. The last hybrid resin test was Shore D hardness and it was found out that the hardness decreases with the increase of dammar percentage. In the last part of the study, some composites by using the poposed hybrid resin reinforced with corn cob powder were manufactured. It has been found out that the proposed composite reinforced with corn cob powder has increased compression mechanical properties compared other composites that have the same reinforcement.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48228630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TiO2 Blended Membranes Used in Wastewater Nanofiltration Systems from Medical Sector TiO2混合膜在医疗行业废水纳滤系统中的应用
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-07-01 DOI: 10.37358/mp.22.2.5599
K. Earar, I. Constantin, A. Bratu, Magdalena Rusu-Negraia, A. Beznea, N. Sârbu, I. Zetu, C. Tiutiuca, C. Dinu, S. Pârvu
{"title":"TiO2 Blended Membranes Used in Wastewater Nanofiltration Systems from Medical Sector","authors":"K. Earar, I. Constantin, A. Bratu, Magdalena Rusu-Negraia, A. Beznea, N. Sârbu, I. Zetu, C. Tiutiuca, C. Dinu, S. Pârvu","doi":"10.37358/mp.22.2.5599","DOIUrl":"https://doi.org/10.37358/mp.22.2.5599","url":null,"abstract":"\u0000The study aims to investigate the influence of TiO2 nanoparticles on the permeation and retention properties of polymeric membranes used in wastewater nanofiltration systems from the medical sector. The research is focused on the influence of the TiO2 nanoparticles concentration on the membrane properties. Additives in general determine enhanced membrane properties like permeation and retention capacity. Hydrophobicityhowever, is decreasing due to the nanoparticles affinity for water and this have an important effect on the permeation properties, at the same time with the decrease in surface roughness, with an important influence on the fouling effect. Membranes with four different concentrations of TiO2 nanoparticles were studied, from 0 to 2% nanoparticles. Results showed that small percent of nanoparticles have an important impact on the permeation properties of the membranes, finding that at 2% nanoparticles the permeation decreases due to the nanoparticles aggregations which are blocking the pores.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45372670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tensile Strength Prediction of Fiberglass Polymer Composites Using Artificial Neural Network Model 基于人工神经网络模型的玻璃纤维聚合物复合材料抗拉强度预测
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-07-01 DOI: 10.37358/mp.22.2.5590
P. Spânu, Bogdan Felician Abaz
{"title":"Tensile Strength Prediction of Fiberglass Polymer Composites Using Artificial Neural Network Model","authors":"P. Spânu, Bogdan Felician Abaz","doi":"10.37358/mp.22.2.5590","DOIUrl":"https://doi.org/10.37358/mp.22.2.5590","url":null,"abstract":"\u0000Highlighting the properties of polymer composites is a complex process given their great diversity and the wide range in which their characteristics could vary. An Artificial Neural Network model for predicting tensile strength was designed using LabVIEW software. The proposed model was developed for randomly reinforced polymeric composite materials with 30%, 40% and 50% fiber-glass. Volume fraction of glass fibre has represented the independent variable for this study. The dependence of the tensile strength on the volume fraction was investigated and highlighted by modelling using neural networks. The designed Artificial Neural Network behaves as a computational system that process data input into a desired output using a network of functions composed of layers. The training process was developed with different Artificial Neural Network architectures with two hidden layers to produce the best prediction results. For each hidden layer the number of neurons was varied be-tween 3 to 50.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42247177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Polytetrafluorethylene Prosthesis Interposition in Vascular Access 聚四氟乙烯假体介入血管通路
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-07-01 DOI: 10.37358/mp.22.2.5579
E. Russu, A. Mureṣan, Eliza-Mihaela Arbănași, D. Nedelea, B. Suciu, Emil-Marian Arbănași, Réka Kaller
{"title":"Polytetrafluorethylene Prosthesis Interposition in Vascular Access","authors":"E. Russu, A. Mureṣan, Eliza-Mihaela Arbănași, D. Nedelea, B. Suciu, Emil-Marian Arbănași, Réka Kaller","doi":"10.37358/mp.22.2.5579","DOIUrl":"https://doi.org/10.37358/mp.22.2.5579","url":null,"abstract":"\u0000The purpose of this study was to investigate how well a polytetrafluoroethylene graft interposition works in limited situations to avoid the use of prosthetic venous access grafts or installing a permanent dialysis catheter. A retrospective examination of clinical data from a single institution was undertaken on a case series from January 2018 to September 2019. We included in our study 28 polytetrafluoroethylene interpositions, done using a mean prosthetic length of 3.5 cm and diameters of 5 and 6 mm. The patency at 24 months was 71.43%, higher than the literature percentages. We found that these interventions were successful and long-lasting, and the technique we used has a minimal risk of thrombosis, infection, or bleeding.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41615634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Plastic Ventilation Tubes and Their Impact on Middle Ear Pathology 塑料通气管及其对中耳病理的影响
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5568
F. Anghelina, D. Palade, R. Bologa, A. Camen, A. Pătru, L. Anghelina, R. Hainăroșie, Cătălina Voiosu, Andrei Osman
{"title":"Plastic Ventilation Tubes and Their Impact on Middle Ear Pathology","authors":"F. Anghelina, D. Palade, R. Bologa, A. Camen, A. Pătru, L. Anghelina, R. Hainăroșie, Cătălina Voiosu, Andrei Osman","doi":"10.37358/mp.22.1.5568","DOIUrl":"https://doi.org/10.37358/mp.22.1.5568","url":null,"abstract":"\u0000Otitis and middle ear disease present high morbidity rates in spite of current medical treatment, especially in the younger population. Otitis media with effusion (OME) is a chronic disease that is often found in school age children. Its evolution, recurrence, complications and resolution still present a challenge to otologists. For some time, middle ear ventilation tubes were used for this pathology, thus assuring proper middle ear ventilation and higher disease resolution rates. In the current paper, we investigate the connection between ventilation tube usage, the materials out of which they are made, the techniques involved and how these factors may influence disease resolution rates.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41517933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
HA/HDPE Reinforced with MWCNTs for Bone Reconstruction and Replacement Application MWCNTs增强HA/HDPE在骨重建和置换中的应用
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5564
A. A. Al-allaq, J. S. Kashan, M. El-Wakad, A. Soliman
{"title":"HA/HDPE Reinforced with MWCNTs for Bone Reconstruction and Replacement Application","authors":"A. A. Al-allaq, J. S. Kashan, M. El-Wakad, A. Soliman","doi":"10.37358/mp.22.1.5564","DOIUrl":"https://doi.org/10.37358/mp.22.1.5564","url":null,"abstract":"\u0000The objective of this study is to demonstrate how the effect of adding multi-walled carbon nanotubes (MWCNTs) nanoparticles to the (Hydroxyapatite /High-density polyethylene) bio-composites. In this investigation, the samples with various percentages of (MWCNTs) were fabricated by a hot-press technique. The morphological characteristics, roughness of the surface and thermal properties of the bio-composite samples (HA/HDPE/MWCNTs) were investigated. The excellent homo-geneous distribution of the internal fibrous network and microstructure arrangements were among the most prominent characteristics obtained through FE-SEM and AFM examinations. The degree of crystallinity showed that the (MWCNTs) additives enhance by an increase of approximately (35%), compared with pure sample (without addition MWCNTs). Based on the experimental results obtained, the fabrication of the presented bio-composites sample exhibited the excellent characteristics that make them promising material for biomedical application as a substitute material for hard tissue likes bone reconstruction.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44256017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Obtaining Nanostructured Surfaces Efficient in Combating Microbial Biofilm 纳米结构表面高效抗微生物生物膜的研究
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5563
A. Tătar, N. Mihuţ, M. Pasăre, L. Cîrțînă, O. Alecsoiu, D. Pasculescu, Roxana Avramoiu
{"title":"Research on Obtaining Nanostructured Surfaces Efficient in Combating Microbial Biofilm","authors":"A. Tătar, N. Mihuţ, M. Pasăre, L. Cîrțînă, O. Alecsoiu, D. Pasculescu, Roxana Avramoiu","doi":"10.37358/mp.22.1.5563","DOIUrl":"https://doi.org/10.37358/mp.22.1.5563","url":null,"abstract":"\u0000Infections that occur after the insertion of biomedical devices are a major problem; potential sources of infection are due to the adhesion of bacteria on the surface of implants, bacteria that form biofilms. In order to combat or to effectively prevent various microbial, which occur in medical procedures, we try to make compounds and materials that prevent the formation or development of microbial biofilm. The aim of this study was to obtain nanostructured surfaces based on magnetite, carboxymethylcellulose and ceftriaxone, as films with anti-infective properties in order to use them in the field of current biomedicine. To obtain nanostructured surfaces with high non-stick potential, the carboxymethylcellulose-functionalized magnetite powder was homogenized with an anti-infective agent, ceftriaxone. From the analysis of the obtained results it was found that the nanostructured surfaces obtained had a strong antimicrobial character infections and can be used successfully in the coating of medical implants, in order to combat the microbial biofilm.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47938455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green P(AAm-co-DADMAC) Copolymeric Material as Catalyst for Synthesis of Potential Phytohormones of Phenylazophenoxy-acetic Acids by Phase Transfer 绿色P（AAm-co-DADMAC）共聚物相转移催化合成苯基偶氮苯氧基乙酸潜在植物激素
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5560
G. Brătulescu
{"title":"Green P(AAm-co-DADMAC) Copolymeric Material as Catalyst for Synthesis of Potential Phytohormones of Phenylazophenoxy-acetic Acids by Phase Transfer","authors":"G. Brătulescu","doi":"10.37358/mp.22.1.5560","DOIUrl":"https://doi.org/10.37358/mp.22.1.5560","url":null,"abstract":"\u0000Several phenylazophenoxyacetic acid derivatives were obtained starting from azophenols and ethyl chloroacetate by an environmentally friendly approach. The synthesis reaction was carried out in heterogeneous medium using P(AAm-co-DADMAC) copolymer. Good results have been obtained thanks to phase transfer catalysis. Retrosynthetic and structural analysis were performed.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45479631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Some Insights on Chemical Treatment of 3D Printed Parts 关于3D打印零件化学处理的一些见解
IF 0.8 4区 材料科学
Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5556
I. Tamașag, D. Amarandei, I. Beșliu
{"title":"Some Insights on Chemical Treatment of 3D Printed Parts","authors":"I. Tamașag, D. Amarandei, I. Beșliu","doi":"10.37358/mp.22.1.5556","DOIUrl":"https://doi.org/10.37358/mp.22.1.5556","url":null,"abstract":"\u0000The substantial increase in the use of the FDM (Fused Deposition Modeling) process for the production of plastic parts in ever wider fields has led to the search for methods to improve the quality of the printed parts. In the case of ABS parts (Acrylonitrile Butadiene Styrene), one of the most common and used methods to improve surface quality is the process of acetone steam treatment, but the application of this method also brings more or less negative effects on the part. The main side effects when applying this method is the low breaking strength and loss of part details on the sharp edges. This paper presents a set of contributions on the relationship between surface quality and the level of detail of parts subjected to acetone steam treatment. In order to analyze the influence of the treatment on the details of the parts, a reverse engineering method was used in which a polyarticular arm FARO Edge 7.5 was used to scan the parts and reconstruct them. The study was performed on parts with 20% infill, grid tipe.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44607114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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