Juana Abenojar

Dr. Juana Abenojar

Materials Science and Engineering, Universidad Carlos III de Madrid, Leganés, Spain
orcid

Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 October 2021 in Materials
Verified
Journal Article
Open access
PDF file
José Antonio Butenegro GarcíaJosé Antonio Butenegro García
José Antonio Butenegro García
Mohsen BahramiMohsen Bahrami
Mohsen Bahrami
JAJuana Abenojar
Juana Abenojar
MMMiguel Angel Martinez
Miguel Angel Martinez
The rapid increase in the application of carbon fiber reinforced polymer (CFRP) composite materials represents a challenge to waste recycling. The circular economy approach coupled with the possibility of recovering carbon fibers from CFRP waste with similar properties to virgin carbon fibers at a much lower cost and with lower energy consumption motivate the study of CFRP recycling. Mechanical recycling methods allow the obtention of chopped composite materials, while both thermal and chemical recycling methods aim towards recovering carbon fibers. This review examines the three main recycling methods, their processes, and particularities, as well as the reuse of recycled carbon fibers in the manufacture of new composite materials.

1 April 2014 in International Journal of Adhesion and Adhesives
Verified
Journal Article
Closed access
NEN. Encinas
N. Encinas
BOB.R. Oakley
B.R. Oakley
MBM.A. Belcher
M.A. Belcher
KBK.Y. Blohowiak
K.Y. Blohowiak
RDR.G. Dillingham
R.G. Dillingham
MMMiguel Angel Martinez
Miguel Angel Martinez

15 November 2020 in Materials
Verified
Journal Article
Open access
PDF file
Mohsen BahramiMohsen Bahrami
Mohsen Bahrami
JAJuana Abenojar
Juana Abenojar
MMMiguel Angel Martinez
Miguel Angel Martinez
Bio-based composites are reinforced polymeric materials in which one of the matrix and reinforcement components or both are from bio-based origins. The biocomposite industry has recently drawn great attention for diverse applications, from household articles to automobiles. This is owing to their low cost, biodegradability, being lightweight, availability, and environmental concerns over synthetic and nonrenewable materials derived from limited resources like fossil fuel. The focus has slowly shifted from traditional biocomposite systems, including thermoplastic polymers reinforced with natural fibers, to more advanced systems called hybrid biocomposites. Hybridization of bio-based fibers/matrices and synthetic ones offers a new strategy to overcome the shortcomings of purely natural fibers or matrices. By incorporating two or more reinforcement types into a single composite, it is possible to not only maintain the advantages of both types but also alleviate some disadvantages of one type of reinforcement by another one. This approach leads to improvement of the mechanical and physical properties of biocomposites for extensive applications. The present review article intends to provide a general overview of selecting the materials to manufacture hybrid biocomposite systems with improved strength properties, water, and burning resistance in recent years.

1 May 2009 in Surface and Coatings Technology
Verified
Journal Article
Closed access
JAJuana Abenojar
Juana Abenojar
RTRafael Torregrosa-Coque
Rafael Torregrosa-Coque
MMMiguel Angel Martinez
Miguel Angel Martinez
JMJosé Miguel Martín-Martínez
José Miguel Martín-Martínez

1 July 2017 in Composites Part B: Engineering
Verified
Journal Article
Closed access
JAJuana Abenojar
Juana Abenojar
JTJ. Tutor
J. Tutor
YIYolanda Ballesteros Iglesias
Yolanda Ballesteros Iglesias
Juan del Real-RomeroJuan del Real-Romero
Juan del Real-Romero
MMMiguel Angel Martinez
Miguel Angel Martinez

15 May 2009 in The Journal of Adhesion
Verified
Journal Article
Closed access
JAJuana Abenojar
Juana Abenojar
MMMiguel Angel Martinez
Miguel Angel Martinez
Francisco Javier Velasco LopezFrancisco Javier Velasco Lopez
Francisco Javier Velasco Lopez
VPV. Pascual-Sánchez
V. Pascual-Sánchez
JMJ. M. Martín-Martínez
J. M. Martín-Martínez
The curing process, wear behavior, and mechanical properties of an epoxy adhesive filled with boron carbide (B4C) were studied. Two different particle sizes and amount of reinforcing B4C were tested. One advantage of using B4C is its ability to absorb neutrons, a property of great importance in the nuclear industry. Gel time and degree of curing were measured to evaluate the effect of adding B4C to the epoxy resin. The chemical structure was studied by Fourier Transform Infrared Spectroscopy (FTIR) and the B4C distribution was analyzed by laser confocal microscopy. Dynamic Mechanical Thermal Analysis (DMTA) tests were also carried out to monitor the viscoelastic properties and the glass transition temperature (Tg) of the cured reinforced epoxy. The wear resistance against alumina was measured using a pin-on-disc test, evaluated as mass loss. The wear tracks were studied by Scanning Electron Microscopy (SEM). The bending strength was also studied to assess the degree of interaction between the B4C and the matrix. The results showed that the reinforced epoxy with B4C was very abrasive, wearing the alumina. The reinforced epoxy had excellent mechanical properties that increased with B4C content and with small particles. Moreover, the Tg value decreased slightly upon B4C addition.