Materiale Plastice最新文献_第3页

The Mechanical Properties Improvement of Polyurethane Rubbers by Using Titanium Oxide and Calcium Carbonate Modifiers (Additives) 氧化钛和碳酸钙改性剂(助剂)对聚氨酯橡胶力学性能的改善

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5667

Antypas Imad Rezakalla, Sirotenko Andrey

引用次数: 0

Experimental Research Regarding the Defects Occurring at the Injection-molding of Long Technical Parts, Made of Thermoplastic Material, Using CAE Systems. Case Study 利用CAE系统对热塑性塑料长件注塑成型过程中的缺陷进行实验研究。个案研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5668

Andrei Prada, F. Blaga, Stefan Mihaila, Mihai Agud

引用次数: 0

CONTENTS 2 / 2023 目录2 / 2023

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5655

引用次数: 0

The Study of Some Mechanical Properties of Some Composite Materials with Different Types of Matrices and Reinforcement from Chromat-type Isophthalic Resin Granules NPG 不同基体和增强类型的色差型间苯二甲酸树脂颗粒NPG复合材料力学性能研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5656

A. Bolcu, M. Stănescu, D. Bolcu, I. Ciuca, A. Diniță, M. Bogdan, F. Badea

引用次数: 0

Numerical analysis of Plastic Perforated Panel for Acoustic Protection 塑料穿孔板隔音性能的数值分析

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5657

Adetu Alina, Năstăsescu Vasile, Adetu Cătălin, Marzavan Silvia

{"title":"Numerical analysis of Plastic Perforated Panel for Acoustic Protection","authors":"Adetu Alina, Năstăsescu Vasile, Adetu Cătălin, Marzavan Silvia","doi":"10.37358/mp.23.2.5657","DOIUrl":"https://doi.org/10.37358/mp.23.2.5657","url":null,"abstract":"\u0000Acoustic protection is an important aspect in various industrial, commercial and residential applications. In order to reduce the transmission of noise, perforated panels are frequently used as a barrier. The present study aims to conduct a numerical analysis of plastic perforated panels for acoustic protection. The study employed a finite element method (FEM) approach and focused on the propagation of acoustic waves through perforations of varying diameters (30 mm, 40 mm, 50 mm, 60 mm, 70 mm and 90 mm) and at different frequencies (250 Hz, 500 Hz, 1000 Hz and 1500 Hz). The numerical analysis was conducted using the finite element software ANSYS. This work offers numerical analysis models of acoustic wave propagation, which can be used by those interested in similar problems, for different environments, in closed or open spaces. The results showed that the perforation diameter and frequency play a crucial role in the performance of the plastic perforated panels as an acoustic barrier. The results of the author�s research pointed out that the plastic materials can be used successfully in the construction of acoustic barriers. Next to it, the findings of this study can provide valuable insights for engineers and designers in the selection and optimization of plastic perforated panels for acoustic protection applications.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42736476","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

Experimental Study on Mechanical Properties of Polyurethane Cement Composite (PUC) Under Various Temperatures 聚氨酯-水泥复合材料在不同温度下力学性能的实验研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5659

Kexin Zhang, Xiao-Yin Zhu, Yue Cao

{"title":"Experimental Study on Mechanical Properties of Polyurethane Cement Composite (PUC) Under Various Temperatures","authors":"Kexin Zhang, Xiao-Yin Zhu, Yue Cao","doi":"10.37358/mp.23.2.5659","DOIUrl":"https://doi.org/10.37358/mp.23.2.5659","url":null,"abstract":"\u0000This paper aims to investigate the mechanical properties of polyurethane cement (different ratios) at different ambient temperatures. The temperature and proportion which affect the constitutive relation of the material were analyzed by axial tensile test. The microstructure and failure mode of polyurethane cement were studied using scanning electron microscope technology. At -40oC ~40oC, the stress-strain curves of polyurethane cement with different proportions were roughly similar. When the temperature was higher than 40oC, with the rise of temperature, the ultimate tensile strength of polyurethane cement specimens would decrease but the ultimate strain would increase. When the temperature was lower than -40oC, with the decline of temperature, the ultimate strain and tensile strength of polyurethane cement specimens would decrease. The ultimate stress of polyurethane cement with different ratios was different. With the rise of the proportion of polyurethane components, the ultimate stress would increase but the elastic modulus would decrease. Macroscopically, the failure modes of polyurethane specimens were different with the change of temperature. Brittle fracture occurred at low temperatures. At high temperatures, the specimen did not fracture, but a large number of �V�shaped cracks appeared at the edge. The higher the temperature, the more obvious this phenomenon was. At the microscopic level, the fibers didn t break at high temperatures, and there were obvious cracks and more stubble on the surface of cracks at room temperature.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41357927","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

Evaluation of the Flexural Performance of the Mono and Hybrid FRP Strengthened RC Beams: Static and Cyclic Loads 单一和混合FRP增强RC梁的抗弯性能评价:静荷载和循环荷载

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5664

Jaisankar Karthick, K. Suguna, Pulipakka Narasimha Rao Raghunath

引用次数: 0

Nucleating Agents to Enhance Poly(L-lactide) Crystallization and Melting Behavior of Modified Poly(L-lactide) 成核剂增强改性聚l -丙交酯的结晶和熔融行为

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5661

Hao-Hsin Huang, Jie Wu, Yanhua Cai, Jie Cheng, Lin Zhang, Lisha Zhao

{"title":"Nucleating Agents to Enhance Poly(L-lactide) Crystallization and Melting Behavior of Modified Poly(L-lactide)","authors":"Hao-Hsin Huang, Jie Wu, Yanhua Cai, Jie Cheng, Lin Zhang, Lisha Zhao","doi":"10.37358/mp.23.2.5661","DOIUrl":"https://doi.org/10.37358/mp.23.2.5661","url":null,"abstract":"\u0000Melt processing poly(L-lactide) (PLLA) with a nucleating agent has been thought to be one of the most effective route to enhance PLLA s crystallization and heat resistance. In the current work, a newly-developed organic nucleating agent named N, N -bis(2-picolinyl) 1, 4-naphthalenedicarboxylic acid dihydrazide (NCAPH) was synthesized to investigate its effects on PLLA�s crystallization and melting behaviors. It is proved that NCAPH as an organic crystallization nucleating agent could provide large number of crystallization nucleation sites to improve PLLA�s crystallization, as observed from DSC and POM measurements. The result from melt-crystallization processes further showed that the final melting temperature and cooling rate were two important factors for affecting PLLA�s melt-crystallization behaviors in cooling, and the theoretical calculation result of frontier orbital energy indicated there existed probable intermolecular interaction between N-H of NCAPH and C=O of PLLA, which was proposed as nucleation mechanism of NCAPH for promoting PLLA�s crystallization. The melting behaviors of PLLA/NCAPH after non-isothermal crystallization or isothermal crystallization further confirmed the positive effects of NCAPH and NCAPH�s loading for the crystallization of PLLA, meantime, the melting behaviors depended on the heating rate, crystallization temperature, crystallization time, etc.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45797454","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

Surface Durability Study of 3D Printed Gears Using Two Different Materials 两种不同材料的3D打印齿轮表面耐久性研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-07-03 DOI: 10.37358/mp.23.2.5662

Chenxiao Li, Chul-Hee Lee

{"title":"Surface Durability Study of 3D Printed Gears Using Two Different Materials","authors":"Chenxiao Li, Chul-Hee Lee","doi":"10.37358/mp.23.2.5662","DOIUrl":"https://doi.org/10.37358/mp.23.2.5662","url":null,"abstract":"\u0000This study evaluated surface durability use of manufacture 3D printed gears. Polymer gears were 3D printed using PLA, Tough-PLA, and TPU materials, Through different combinations of materials,three gears of the same size were manufactured: the PLA gear, the PLA plus TUP gear and the Tought PLA plus TPU gear. The surface wear test of the 3d-printed gears were on a self-designed test bench. The differences in mechanical performance between the polymer filaments were attributed to differences in crystallinity and the uniqueness of the fused deposition modeling (FDM) process, but by combining two materials with different features, it is possible to change the mechanical properties of 3D printed gears.In this study , from the changes of torque data during the whole experiment also showed the difference of transmission efficiency of three different gears.Scanning electron microscopy (SEM) revealed the different surface wear of three different gears under the same test conditions. During the gear surface wear test, a thermal camera was used to recorded the surface temperature changes of the gears, and SEM was used to analyze the wear of the gear surface. The test results showed Tough-PLA Plus TPU gear showed the best wear performance among the three different 3D printing gears tested.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42867757","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

Performance of Concrete with Recycled Epoxy Plate Waste as aPartial Replacement for Fine Aggregates 再生环氧板废料部分替代细骨料的混凝土性能

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2023-04-05 DOI: 10.37358/mp.23.1.5643

Ping He, Cong Wang, Qiang Zhang, Jing Liu, Hao Lu

{"title":"Performance of Concrete with Recycled Epoxy Plate Waste as aPartial Replacement for Fine Aggregates","authors":"Ping He, Cong Wang, Qiang Zhang, Jing Liu, Hao Lu","doi":"10.37358/mp.23.1.5643","DOIUrl":"https://doi.org/10.37358/mp.23.1.5643","url":null,"abstract":"\u0000The waste recycling of epoxy resin-based fiber reinforced plastics is an important topic of current environmental protection. This work investigated the potential engineering benefits of applying simply crushed recycled epoxy resin-based fiber reinforced plastic in structural concrete. In this paper, the mixing and mechanical properties of concrete products with crushed and recycled waste epoxy plates instead of some fine aggregate were studied experimentally. Three kinds of recycled crushing materials with different particle sizes below 4mm, 4mm to 9mm, and 9mm were used to prepare 10 groups of concrete samples with different proportions by replacing sand with 5, 10, and 15% volumes, respectively. The results showed that the density of the recycled plastic concrete was reduced and the slump of the concrete was increased, with the increase of the recycled crushing materials, and the mechanical properties of concrete were improved within the 5%-10% admixture, and the best results of comprehensive mechanical properties were achieved when the admixture was 10% and the particle size was 4-9mm. These results indicated that it is feasible to replace concrete fine aggregates with recycled crushing materials of waste epoxy plate, and this study not only explores a new way to recycle waste epoxy resin-based fiber reinforced plastic, but also reduces the over-exploitation of sand natural resources, which have a high social and economic value.\u0000","PeriodicalId":18360,"journal":{"name":"Materiale Plastice","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43625114","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