Materiale Plastice最新文献_第10页

Recycling of Carbon Fiber Laminates by Thermo-mechanical Disassembly and Hybrid Panel Compression Molding 碳纤维复合材料热机械拆解与复合板压缩成型回收利用研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5558

A. Proietti, L. Iorio, N. Gallo, M. Regi, D. Bellisario, F. Quadrini, L. Santo

{"title":"Recycling of Carbon Fiber Laminates by Thermo-mechanical Disassembly and Hybrid Panel Compression Molding","authors":"A. Proietti, L. Iorio, N. Gallo, M. Regi, D. Bellisario, F. Quadrini, L. Santo","doi":"10.37358/mp.22.1.5558","DOIUrl":"https://doi.org/10.37358/mp.22.1.5558","url":null,"abstract":"\u0000An innovative recycling process for thermoset composite laminates is proposed by thermo-mechanical disassembly and further compression molding of hybrid thermoformable composite plates. Due to the thermo-mechanical process, single cured plies are extracted from the waste laminate. Subsequently re-lamination is performed by interposing thermoplastic films between the reclaimed composite plies. Final consolidation is carried out by compression molding. In order to show the feasibility of the novel recycling technology, carbon fiber reinforced composite plates by autoclave molding were thermo-mechanically disassembled in a manual roll bending machine after heating in oven. Reclaimed cured plies were laminated by alternating thermoplastic interlayers made of low density polyethylene. The hybrid laminate was consolidated at the temperature of 220�C and the holding pressure of 38.5 bar. Results from bending tests on virgin and recycled plates showed the very good agglomeration of the hybrid samples and the optimal preservation of performances of initial cured plies of the virgin material into the recycled plate.\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":"48079446","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

Tensile Properties and Manufacturing Defectives of Short Carbon Fiber Specimens Made with the FDM Process FDM法短碳纤维试样的拉伸性能及制造缺陷

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5557

M. Blaj, S. Zaharia, M. Pop, G. Oancea

{"title":"Tensile Properties and Manufacturing Defectives of Short Carbon Fiber Specimens Made with the FDM Process","authors":"M. Blaj, S. Zaharia, M. Pop, G. Oancea","doi":"10.37358/mp.22.1.5557","DOIUrl":"https://doi.org/10.37358/mp.22.1.5557","url":null,"abstract":"\u0000With the fourth industrial revolution, Additive Manufacturing started to offer new possibilities of manufacturing, Fused Deposition Modeling being one of the most used processes for fabrication. In this paper, the studied specimens are manufactured based on the Fused Deposition Modeling (FDM) method, with a filament of short carbon fiber and polyethylene terephthalate (PET) matrix, with a variation of the layer thickness. For the resulted specimens the tensile properties are determined according to ASTM D638. The most advantageous results are obtained for the layer thickness of 0.15 mm, with the tensile strength of 58 MPa. Based on the stress-strain curves which are presented in this paper, it also can be assumed that the material is brittle. The results of the mechanical properties are very similar for each group of specimens and it can be assumed that the mechanical properties are homogenous due to the material quality and the machine performances. For all the specimens the rupture location is almost in the same area. Due to the difficulty of carbon fiber filament printing, the manufacturing defectives which appear during the manufacturing process are detected, the most common manufacturing defectives being the material gaps from each specimen, which are identified with microstructural analysis. As failure modes, the most common failure criteria are the delamination and the matrix cracks.\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":"46551721","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

Influential Parameters and Multi Objective Optimization of Bagasse and Palm Kernel Natural Fibre Plates Using Taguchi Assisted Topsis 田口辅助Topsis法优化蔗渣和棕榈仁天然纤维板材的影响参数及多目标优化

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5572

K. Subramanian, Ilangkumaran Mani

{"title":"Influential Parameters and Multi Objective Optimization of Bagasse and Palm Kernel Natural Fibre Plates Using Taguchi Assisted Topsis","authors":"K. Subramanian, Ilangkumaran Mani","doi":"10.37358/mp.22.1.5572","DOIUrl":"https://doi.org/10.37358/mp.22.1.5572","url":null,"abstract":"\u0000Composites that have a good to lower weight ratio can be used to replace conventionally used Engineering Materials. The properties of natural fibers are almost equal to that of artificial fibres. Natural fibers can be used in many applications and is also a cost-effective material. Bagasse fibre reinforced with dry palm kernel fibre powder is used to improve mechanical properties and fabricated in plate form. In this research work, the input constraints that have been used to fabricate the plate are 10, 20, 30 wt% of bagasse fibre, 10, 20, 30 wt% of palm kernel fibre, at 10, 15, 20 MPa compression pressure and 2, 4, 6 mm of speciemn thickness respectively. The optimization has been performed by Taguchi L27 orthogonal array and influence of output parameters viz. Tensile Strength (MPa), Flexural Strength (MPa) and Hardness (Hv) have been measured by using statistical analysis of variance. The multi-criteria decision making of the output parameters has been performed by Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). This research offers new insight into decision-making, particularly in the optimization part, to increase the strength and mechanical property of natural fiber composites.\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":"46737218","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

In vitro Study on Mechanical Properties of Polyacid-modified Composite Resins (Compomers) 聚酸改性复合树脂力学性能的体外研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5562

Dan Florin Bonta, S. Tofan, L. Todor, M. Miron, Cristina Talpoș, Raluca Mioara Cosroaba, F. Borcan, R. Popovici

引用次数: 0

Experimental Investigation of Pterocarpus Marsupium Resin/LY 556 Epoxy Blended Hybrid Polymer Material 紫杉树脂/ ly556环氧树脂共混杂化高分子材料的实验研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5565

Prasath Srinivasan, Dharmalingam Somasundaram, Rajendiran Subramanian, Santhanam Vajjiram

引用次数: 0

Medical Waste Water Treatment by Membrane Filtration 膜过滤法处理医疗废水

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5571

K. Earar, I. Ciuca, M. Antohe, V. Harabor, I. Constantin, Alina Mihaela Calin, C. Tiutiuca, A. Bratu, A. Beznea, C. Olteanu

引用次数: 1

Research on Obtaining Biocomposite Structures with Sound Absorbing Properties 具有吸声性能的生物复合材料结构的制备研究

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5566

S. A. Nitu, Nicoleta Sporea, R. Iatan, Ion Durbacă, O. Vasile, Gheorghe Cosmin Ciocoiu

引用次数: 3

Modeling and Analysis of Surface Roughness Parameters in Drilling of Silk-glass/epoxy Composite 丝玻璃/环氧树脂复合材料钻孔表面粗糙度参数的建模与分析

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5561

Arun Prakash C., Vimal Sam Singh R., Achyuth Ramachandran, A. Selvam

{"title":"Modeling and Analysis of Surface Roughness Parameters in Drilling of Silk-glass/epoxy Composite","authors":"Arun Prakash C., Vimal Sam Singh R., Achyuth Ramachandran, A. Selvam","doi":"10.37358/mp.22.1.5561","DOIUrl":"https://doi.org/10.37358/mp.22.1.5561","url":null,"abstract":"\u0000In the recent past, the demand for multifunctional and lightweight materials have increased steadily creating an increase in demand for Hybrid polymer matrix composite which consists multiple fibers in conventional resins. In this study, a hybrid composite comprising of two reinforcements - natural silk fiber and E-Glass fiber - in an Epoxy resin matrix which is a partially eco-friendly composite has been fabricated and the effect of drilling, by using an 8 facet solid carbide drill, on the surface roughness has been studied. Taguchi�s L27 Orthogonal array was used for experimentation by modifying three parameters - feed rate, spindle speed and drill diameter - on three levels (low, medium and high) and thereby studying the effects. From the results of experimentation it has been observed that increase in spindle speed and drill diameter reduces surface roughness however it increases with increase in feed rate. Further, regression analysis and Fuzzy modeling are used in order to determine optimum parameter values to get the desired surface finish. Good agreement between the experimental, regression and fuzzy model is observed with the correlation coefficient of 0.9814 and 0.9677 respectively.\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":"48009965","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

The Use of Products of Microwave Aminolytic Destruction of Polyethylene Terephthalate in Vibration-absorbing Polymer Composite Materials 微波氨基降解聚对苯二甲酸乙二醇酯产物在吸振聚合物复合材料中的应用

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5555

M. Vokhmyanin, R. Vesnin, V. Avdonin

{"title":"The Use of Products of Microwave Aminolytic Destruction of Polyethylene Terephthalate in Vibration-absorbing Polymer Composite Materials","authors":"M. Vokhmyanin, R. Vesnin, V. Avdonin","doi":"10.37358/mp.22.1.5555","DOIUrl":"https://doi.org/10.37358/mp.22.1.5555","url":null,"abstract":"\u0000The aim of this work is to study the possibility of using the products of aminolytic destruction of polyethylene terephthalate (PET) and their derivatives in polymer composite materials with vibration-absorbing properties, which provide effective damping of vibrations of technogenic and natural origin in a wide temperature and frequency range. The paper considers a modern method of recycling PET waste with a mixture of amino alcohols - monoethanolamine and triethanolamine, taken in two different ratios. As a result of the destruction reaction, terephthalic acid diamide (N, N -bis (2-hydroxyethyl) terephthalamide) is formed. To accelerate the destruction process, microwave radiation of various powers of 200, 540 and 700 watts was used. The optimal conditions for aminolytic decomposition of PET were determined: the time and power of microwave radiation with PET conversion up to 95% and the yield of the target product (terephthalic acid diamide) 80-85%. The destruction process was carried out according to a closed cycle of using reagents, without the use of catalysts and at atmospheric pressure, which to a certain extent reduces the energy consumption and increases the environmental friendliness of this method of PET decomposition. The aminolytic degradation product of PET (terephthalic acid diamide) was used as a monomer in the polycondensation reaction to obtain a new oligomer (terephthalic acid oligoesteramide). The degree of polymerisation (n) is in this case 7 to 11 (number of chain links). The obtained oligomer and the PET degradation product were investigated as new components in elastomeric compositions based on chloroprene rubber and in compositions based on thermoplastic elastomers. It has been demonstrated that the introduction of an oligomer based on a PET degradation product reduces the viscosity of elastomeric compositions by 25-35%. The study was supported by a grant from the Russian Science Foundation No. 21-79-00301, https://rscf.ru/project/21-79-00301/.\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":"49602605","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 Investigation and Numerical Simulation on the Thermal Insulation Materials Using Recycled Thermoplastic Polymers 再生热塑性聚合物保温材料的实验研究与数值模拟

IF 0.8 4区材料科学

Materiale Plastice Pub Date : 2022-04-05 DOI: 10.37358/mp.22.1.5570

A. Al-Shawabkeh, Salamah Sawalheh, Ibrahim I Ikhries, Waid Omar

引用次数: 0