复合材料期刊(英文)最新文献_第2页

Wettability Control between Oleophobic/Superhydrophilic and Superoleophilic/Superhydrophobic Characteristics on the Modified Surface Treated with Fluoroalkyl End-Capped Oligomers/Micro-Sized Polystyrene Particle Composites 氟烷基端端低聚物/微尺寸聚苯乙烯颗粒复合材料改性表面的疏油/超亲水和超亲油/超疏水润湿性控制

复合材料期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/ojcm.2022.121004

H. Sawada, Koki Arakawa, Yuta Aomi

引用次数: 1

Improvement in Impact Energy Absorption of UD-CFRP by Sub-Micron Glass Fiber into Its Matrix 亚微米玻璃纤维对UD-CFRP冲击吸能的改善

复合材料期刊(英文) Pub Date : 2021-09-01 DOI: 10.4236/ojcm.2021.114007

Ryotaro Murayama, K. Obunai, K. Okubo, L. Bao

{"title":"Improvement in Impact Energy Absorption of UD-CFRP by Sub-Micron Glass Fiber into Its Matrix","authors":"Ryotaro Murayama, K. Obunai, K. Okubo, L. Bao","doi":"10.4236/ojcm.2021.114007","DOIUrl":"https://doi.org/10.4236/ojcm.2021.114007","url":null,"abstract":"CFRPs have high \u0000strength despite low density, but little impact resistance. In addition, the \u0000debonding of the interface between reinforcement fiber and matrix causes one of \u0000the fractures of FRPs. Therefore, the purpose of this study is to \u0000investigate the interfacial bonding characteristics between the reinforcement \u0000fiber and matrix of FRPs, not only under static loading but also under dynamic \u0000loading. Moreover, an effective method to improve the impact resistance of FRPs \u0000from the viewpoint of interfacial bonding characteristics was proposed. First, \u0000two types of UD-FRPs in which the reinforcement fiber was glass fiber or carbon fiber, were prepared to investigate the energy absorption under a bending load. A \u0000bending load was applied to the specimen statically and dynamically to measure \u0000the energy absorption until failure. The interfacial bonding characteristics \u0000between the reinforcement fiber and matrix \u0000were measured using a fragmentation method with a single fiber-embedded specimen. A dynamic tensile load was applied to the specimen using a \u0000tensile-type split Hopkinson pressure bar apparatus. Test results showed that \u0000the energy absorption of UD-CFRP decreased with an increase in strain rate, \u0000whereas that of UD-GFRP increased with an increase in strain rate. When the \u0000epoxy resin was modified by adding sub-micron glass fiber, both the interfacial \u0000shear strength between the carbon fiber and matrix, and the energy absorption \u0000of UD-CFRP improved.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48294659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Recipe Development and Mechanical Characterization of Carbon Fibre Reinforced Recycled Polypropylene 3D Printing Filament 碳纤维增强再生聚丙烯3D打印丝的配方开发及力学性能研究

复合材料期刊(英文) Pub Date : 2021-07-30 DOI: 10.4236/ojcm.2021.113005

Kyekyere Ernest, Mwambe Polline, J. Mutua, T. Mbuya

{"title":"Recipe Development and Mechanical Characterization of Carbon Fibre Reinforced Recycled Polypropylene 3D Printing Filament","authors":"Kyekyere Ernest, Mwambe Polline, J. Mutua, T. Mbuya","doi":"10.4236/ojcm.2021.113005","DOIUrl":"https://doi.org/10.4236/ojcm.2021.113005","url":null,"abstract":"Recycled polypropylene filaments for fused filament \u0000fabrication were investigated with and without 14 wt% short fibre carbon reinforcements. The microstructure \u0000and mechanical properties of the filaments and 3D printed specimens were \u0000characterized using scanning electron microscopy and standard tensile testing. \u0000It was observed that recycled polypropylene filaments with 14 wt% short carbon fibre reinforcement contained pores that were \u0000dispersed throughout the microstructure of the filament. A two-stage filament \u0000extrusion process was observed to improve the spatial distribution of carbon fibre reinforcement but did not reduce the \u0000pores. Recycled polypropylene filaments without reinforcement extruded at high \u0000screw speeds above 20 rpm contained a centreline cavity but no spatially \u0000distributed pores. However, this cavity is eliminated when extrusion is carried \u0000out at screw speeds below 20 rpm. For 3D printed specimens, interlayer cavities \u0000were observed larger for specimens printed from 14 wt% carbon fibre reinforced recycled polypropylene than \u0000those printed from unreinforced filaments. The values of tensile strength for \u0000the filaments were 21.82 MPa and 24.22 MPa, which reduced to 19.72 MPa and 22.70 MPa, respectively, for 3D printed samples using the filaments. Likewise, \u0000the young’s modulus of the filaments was 1208.6 MPa and 1412.7 MPa, which reduced to 961.5 MPa and 1352.3 MPa, respectively, for the \u00003D printed samples. The percentage elongation at failure for the recycled \u0000polypropylene filament was 9.83% but reduced to 3.84% for the samples printed \u0000with 14 wt% carbon fiber reinforced polypropylene filaments whose elongation to \u0000failure was 6.58%. The SEM observations on the fractured tensile test samples \u0000showed interlayer gaps between the printed and the adjacent raster layers. \u0000These gaps accounted for the reduction in the mechanical properties of the \u0000printed parts.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43227723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

A Mini-Review and Perspective on Current Best Practice and Emerging Industry 4.0 Methods for Risk Reduction in Advanced Composites Manufacturing 当前先进复合材料制造业降低风险的最佳实践和新兴工业4.0方法的回顾与展望

复合材料期刊(英文) Pub Date : 2021-04-09 DOI: 10.4236/OJCM.2021.112004

B. Crawford, H. Khayyam, A. Milani

{"title":"A Mini-Review and Perspective on Current Best Practice and Emerging Industry 4.0 Methods for Risk Reduction in Advanced Composites Manufacturing","authors":"B. Crawford, H. Khayyam, A. Milani","doi":"10.4236/OJCM.2021.112004","DOIUrl":"https://doi.org/10.4236/OJCM.2021.112004","url":null,"abstract":"The manufacturing of composite structures is a highly complex task with inevitable risks, particularly associated with aleatoric and epistemic uncertainty of both the materials and processes, as well as the need for in-situ decision-making to mitigate defects during manufacturing. In the context of aerospace composites production in particular, there is a heightened impetus to address and reduce this risk. Current qualification and substantiation frameworks within the aerospace industry define tractable methods for risk reduction. In parallel, Industry 4.0 is an emerging set of technologies and tools that can enable better decision-making towards risk reduction, supported by data-driven models. It offers new paradigms for manufacturers, by virtue of enabling in-situ decisions for optimizing the process as a dynamic system. However, the static nature of current (pre-Industry 4.0) best-practice frameworks may be viewed as at odds with this emerging novel approach. In addition, many of the predictive tools leveraged in an Industry 4.0 system are black-box in nature, which presents other concerns of tractability, interpretability and ultimately risk. This article presents a perspective on the current state-of-the-art in the aerospace composites industry focusing on risk reduction in the autoclave processing, as an example system, while reviewing current trends and needs towards a Composites 4.0 future.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"11 1","pages":"31-45"},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45761709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Development of Renewable Woodceramics Synthesized from Cashew Nuts Shell Oil 腰果壳油合成再生木陶瓷的研究进展

复合材料期刊(英文) Pub Date : 2021-04-09 DOI: 10.4236/OJCM.2021.112003

T. Okabe, K. Fukuda, A. Takasaki, K. Kakishita, Y. Nishimoto, Y. Shinohara, D. Q. Minh, P. Tuan, R. Yamamoto

{"title":"Development of Renewable Woodceramics Synthesized from Cashew Nuts Shell Oil","authors":"T. Okabe, K. Fukuda, A. Takasaki, K. Kakishita, Y. Nishimoto, Y. Shinohara, D. Q. Minh, P. Tuan, R. Yamamoto","doi":"10.4236/OJCM.2021.112003","DOIUrl":"https://doi.org/10.4236/OJCM.2021.112003","url":null,"abstract":"The international issue to be addressed towards realizing a low-carbon society is to reduce the amount of carbon-based underground reserves such as coal, petroleum, and coke, and strongly encouraged to use carbon neutral biomass-derived resources. Woodceramics is a hybrid porous carbon material composed of wood-based biomass and phenolic resin, characterized by high far-infrared emissivity and large specific surface area. Woodceramics has been studied as heating elements and humidity and gas sensors, etc. If this is applied to the inner walls of aging and grain drying furnaces for vegetables and fruits, both ripening and drying are greatly promoted and fossil fuels used in boilers can be significantly reduced. In fact, it can produce black garlic with far infrared rays using a woodceramics brick efficiently. Furthermore, as a substitute for phenolic resin, if plant-based liquefied materials from cashew nut shell oil can be prepared and can be used for manufacturing woodceramics, then all carbon neutral circulating woodceramics made from wood-based biomass is possible to manufacture. On the other hand, woodplastics is a composite material that can be made of wooden materials and plastics, and able to expect the effective use of wood-based biomass and waste plastics.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"11 1","pages":"23-30"},"PeriodicalIF":0.0,"publicationDate":"2021-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47679794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Chemical Modification on Woven Jute and Nonwoven Wet-Laid Glass Fiber Sheet Reinforced Poly-(ε-Caprolactone) Composites 纺织黄麻和非织造湿布玻璃纤维增强聚-(ε-己内酯)复合材料的化学改性研究

复合材料期刊(英文) Pub Date : 2021-01-01 DOI: 10.4236/ojcm.2021.114006

Mohammad Muzammel Hossen, Mohammad Obaidur Rahman

引用次数: 0

Low Density Linear Polyethylene Reinforced with Alkali and MAPE Treated Fibers from Coffee Pulp 碱和MAPE处理咖啡浆纤维增强低密度线性聚乙烯

复合材料期刊(英文) Pub Date : 2021-01-01 DOI: 10.4236/ojcm.2021.114008

Ahmat Tom, A. Tame, Paul Nestor Djomou Djonga, Bakary Tigana Djonse Justin, Eugenie Géraldine Nga Abena

{"title":"Low Density Linear Polyethylene Reinforced with Alkali and MAPE Treated Fibers from Coffee Pulp","authors":"Ahmat Tom, A. Tame, Paul Nestor Djomou Djonga, Bakary Tigana Djonse Justin, Eugenie Géraldine Nga Abena","doi":"10.4236/ojcm.2021.114008","DOIUrl":"https://doi.org/10.4236/ojcm.2021.114008","url":null,"abstract":"In this work fibers derived from coffee, hulls have been incorporated into Linear Low Density Polyethylene (LLDPE). The influence of the filler content on the thermal and physicomechanical properties of the composites obtained was assessed. The results showed that the incorporation of fibers was able to improve the thermostability of LLDPE/Coffee hulls fibers; comparing the treated fiber composite with untreated fiber composites, the chemical treatment reduces by 58.3% the water absorption, while increasing the elongation and tensile strength by about 48% and 17% respectively. Moreover, due to better interfacial interaction induced by MAPE, the corresponding composite exhibited better properties compared to the untreated fiber composite. Results are indicative of the fact that both mercerization and MAPE (coupling agent) have significant positive effects on the fiber-matrix interaction in terms of adhesion, wetting and dispersion, this treatment produced a better fiber distribution and consequently a more uniform composite morphology without voids and gaps between the fibers and the matrix, allowing the possibility to use higher fiber contents (up to 30% wt.) with acceptable mechanical properties.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simple Measurement of Carbon Films on Copper Tubes and Their Effects on Corrosion 铜管上碳膜的简单测量及其对腐蚀的影响

复合材料期刊(英文) Pub Date : 2021-01-01 DOI: 10.4236/OJCM.2021.111002

Takashi Iyasu, Motoki Kuratani, I. Ikeda, N. Tanaka, Yutaka Yamada, O. Sakurada

{"title":"Simple Measurement of Carbon Films on Copper Tubes and Their Effects on Corrosion","authors":"Takashi Iyasu, Motoki Kuratani, I. Ikeda, N. Tanaka, Yutaka Yamada, O. Sakurada","doi":"10.4236/OJCM.2021.111002","DOIUrl":"https://doi.org/10.4236/OJCM.2021.111002","url":null,"abstract":"It has been reported that pitting corrosion in copper tubes occurs due to the effect of a carbon film produced by the influence of undergoing an oil and heat treatment. As a quantitative method for determining the residual carbon amount, it has been reported that the inner surface of a copper tube can be dissolved with a mixed acid to collect and analyze the adhering carbon; however, this method is dangerous and difficult. Therefore, two methods were examined as a simple quantitative method for obtaining the residual carbon amount using copper tubes with known residual carbon amounts. One method utilizes X-ray photoelectron spectroscopy (XPS), and the other method utilizes the potential difference between the carbon film-adhered surface and carbon film-removed surface. In regard to XPS measurement, a linear correlation was found between the spectral intensity of C and the residual carbon amount; therefore, XPS measurements were considered to be effective as a simple measurement method for the carbon film on the inner surface of a copper tube. In the evaluation method by measuring the corrosion potential, a correlation was observed between the potential difference ΔE and the residual carbon amount of the inner surface of the tube and the outer surface of the polished tube. It is considered possible to estimate the residual carbon amount from the prepared calibration curve. Through these studies, it is suggested that the carbon film was non-uniformly present on the surface of the copper tube. Therefore, the galvanic current was measured, and the effect of a non-uniform carbon film on corrosion behavior was investigated. As a result, in the measurement of galvanic current, the current flowed from the copper tube with a large amount of residual carbon (cathode) to the copper tube with a small amount of residual carbon (anode). In addition, the higher the area ratio of the carbon film was, the larger the galvanic current tended to be.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"11 1","pages":"12-22"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Morphological, Rheological and Mechanical Properties of Pla-Typha Based Biocomposites 树胶基生物复合材料的形态、流变学和力学性能

复合材料期刊(英文) Pub Date : 2021-01-01 DOI: 10.4236/ojcm.2021.114009

B. Niang, Nicola Schiavone, H. Askanian, Diène Ndiaye, V. Verney

{"title":"Morphological, Rheological and Mechanical Properties of Pla-Typha Based Biocomposites","authors":"B. Niang, Nicola Schiavone, H. Askanian, Diène Ndiaye, V. Verney","doi":"10.4236/ojcm.2021.114009","DOIUrl":"https://doi.org/10.4236/ojcm.2021.114009","url":null,"abstract":"Due to the demand from society for the consumption of ecological polymeric materials, one of the polymers that have satisfied this request is the poly (lactic acid) (PLA). This polymer is derived from renewable resources, it is recyclable and biodegradable. It presents a good understanding between the promising properties and the cost. However, a route to increase the mechanical properties and reduce the cost of PLA is the elaboration of PLA based biocomposites by using fillers from natural waste. In this work, The effect of Typha content on the morphological, rheological, thermal and mechanical properties of PLA matrix was studied. Four formulations were produced with different mass concentrations. The results showed an increase in the viscoelastic properties, as a function of the Typha stem powder concentration. The DSC analysis showed an increase in the crystallinity rate of the various composites confirming the nucleating effect provided by the filler. TGA analysis indicated a decrease in the decomposition temperature of the composites. Mechanical tensile tests have shown a significant improvement in the mechanical properties mainly for the samples containing 45% (w/w) of Typha powder.","PeriodicalId":57868,"journal":{"name":"复合材料期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70624750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manufacturing of 3D Printed Laminated Carbon Fibre Reinforced Nylon Composites: Impact Mechanics 3D打印层压碳纤维增强尼龙复合材料的制造:冲击力学

复合材料期刊(英文) Pub Date : 2020-12-02 DOI: 10.4236/OJCM.2021.111001

Yohan Delporte, H. Ghasemnejad

引用次数: 4