Designing of high-performance epoxy adhesive with recycled polymers and silica nano particles (SNPs) in epoxy/carbon fiber composite-steel bonded joints: Mechanical properties, thermal stability and toughening mechanisms

2021 ◽  
Author(s):  
Zahra Abbasi ◽  
Omid Moini Jazani ◽  
Majid Sohrabian
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Carbon Fiber ◽  
High Performance ◽  
Fiber Composite ◽  
Epoxy Adhesive ◽  
Nano Particles ◽  
Bonded Joints ◽  
Carbon Fiber Composite ◽  
Toughening Mechanisms

High-performance epoxy-based adhesives reinforced with alumina and silica for carbon fiber composite/steel bonded joints

2016 ◽  
Vol 35 (23) ◽  
pp. 1685-1695 ◽  
Author(s):  
Maryam Jouyandeh ◽  
Omid Moini Jazani ◽  
Amir H Navarchian ◽  
Mohammad Reza Saeb
Keyword(s):  
Thermal Stability ◽  
Carbon Fiber ◽  
High Performance ◽  
Loss Modulus ◽  
Fiber Composite ◽  
Carbon Fiber Composite ◽  
Degradation Temperature ◽  
Lap Shear ◽  
Lap Shear Test ◽  
Cure Temperature

Epoxy-based adhesives reinforced with silica and alumina fillers (20, 40, and 60 phr) were prepared and successfully applied for lap-joint bonding of carbon fiber composite with steel. The mechanical properties of adhesives were assessed as different cure temperatures to find optimum cure temperature. Morphology of the reinforced epoxy adhesives was observed by optical microscopy to disclose the interplay between composite properties and distribution fashion of the silica and alumina fillers within the epoxy matrix. Thermal stability and interfacial interaction situation were explored by thermogravimetric and Fourier transform infrared spectroscopy analyses, respectively. Rheological behavior of the composite samples was also studied. Lap shear test was an indication for a considerable improvement of about 12% and 20%, compared to unfilled epoxy/hardener systems, for composites containing 60 phr of alumina and silica, respectively. However, the presence and population of voids in case of samples cured at elevated temperature deteriorated lap shear strength. Of note, the storage and loss modulus of the latter adhesive have been increased by 797% and 472%, respectively. Thermal stability on the basis of initial degradation temperature and char yield (> 500℃) of the assigned adhesive under N2 and air have also been enhanced. Higher performance of silica-based adhesives was mechanistically and morphologically discussed on the bedrock of formation of a 3D inter-connected network of filler particles.

Facile in situ preparation of high-performance epoxy vitrimer from renewable resources and its application in nondestructive recyclable carbon fiber composite

2019 ◽  
Vol 21 (6) ◽  
pp. 1484-1497 ◽  
Author(s):  
Sheng Wang ◽  
Songqi Ma ◽  
Qiong Li ◽  
Xiwei Xu ◽  
Binbo Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Renewable Resources ◽  
High Performance ◽  
Fiber Composite ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Carbon Fiber Composite ◽  
In Situ Preparation

A high-performance epoxy vitrimer was facilely prepared from a renewable lignin derivative vanillin, and its carbon-fiber composites were nondestructively recycled.

Strain monitoring of carbon fiber composite via embedded nickel nano-particles

2012 ◽  
Vol 43 (3) ◽  
pp. 1155-1163 ◽  
Author(s):  
Timothy M. Johnson ◽  
David T. Fullwood ◽  
George Hansen
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Nano Particles ◽  
Carbon Fiber Composite ◽  
Strain Monitoring

scholarly journals Mechanical Properties and Tensile Fatigue of Graphene Nanoplatelets Reinforced Polymer Nanocomposites

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Ming-Yuan Shen ◽  
Tung-Yu Chang ◽  
Tsung-Han Hsieh ◽  
Yi-Luen Li ◽  
Chin-Lung Chiang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Fatigue Life ◽  
Carbon Fiber ◽  
Ultimate Tensile Strength ◽  
Composite Laminates ◽  
Epoxy Composite ◽  
Fiber Composite ◽  
Graphene Nanoplatelets ◽  
Carbon Fiber Composite

Graphene nanoplatelets (GNPs) are novel nanofillers possessing attractive characteristics, including robust compatibility with most polymers, high absolute strength, and cost effectiveness. In this study, GNPs were used to reinforce epoxy composite and epoxy/carbon fiber composite laminates to enhance their mechanical properties. The mechanical properties of GNPs/epoxy nanocomposite, such as ultimate tensile strength and flexure properties, were investigated. The fatigue life of epoxy/carbon fiber composite laminate with GPs-added 0.25 wt% was increased over that of neat laminates at all levels of cyclic stress. Consequently, significant improvement in the mechanical properties of ultimate tensile strength, flexure, and fatigue life was attained for these epoxy resin composites and carbon fiber-reinforced epoxy composite laminates.

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