scholarly journals Fabrication and Characterization of Organoclay Reinforced Polyester Based Hybrid Nanocomposite Materials

2018 ◽  
Vol 8 (3) ◽  
pp. 3038-3040
Author(s):  
N. Zaman ◽  
S. Ahmed ◽  
M. Sanaullah ◽  
A. U. Rehman ◽  
A. R. Shar ◽  
...  
Keyword(s):  
Composite Materials ◽  
Nanocomposite Materials ◽  
Spectroscopic Techniques ◽  
Hybrid Nanocomposite ◽  
Characteristic Peak ◽  
Sem Images ◽  
The Matrix ◽  
Uv Visible ◽  
Fabrication And Characterization

Synthesis and characterization of polyester nanocomposites was conducted in order to fabricate hybrid composite materials of polyester/montmorillonite (MMT). Polyester based polymeric nanocomposite materials were synthesized by incorporating MMT nanoclay to produce polyester/MMT hybrid materials. Successful efforts were made to fabricate hybrid nanocomposite materials based on matrix (polyester based) and reinforcement (organoclay) through sonication at 6 and 12 hours. Synthesized nanocomposite polymers (polyester/MMT) showed different properties when compared to the properties of MMT and polyester, which confirmed the successful fabrication of the desired material. The finest incorporation of polyester with MMT was verified by UV-Visible spectrophotometer, Fourier tranform-infrared (FTIR) and scanning electron microscopy (SEM). The disappearance of the Si-O characteristic peak was observed in the FTIR spectrum justifying the fabrication of the desired composite materials. Colored SEM images were used to confirm the fine homogenous distribution of organoclay. Black SEM images showed the matrix and reinforcement together. SEM, FTIR and UV-Visible spectroscopic techniques were used to analyze polyester based nanocomposite materials and organoclay was found randomly distributed in the polymeric matrix whereas on the surface was observed to be mostly uniform.

scholarly journals Characterization of continuous Hibiscus sabdariffa fibre reinforced epoxy composites

2022 ◽  
Vol 30 ◽  
pp. 096739112110609
Author(s):  
Atik Mubarak Kazi ◽  
Ramasastry DVA
Keyword(s):  
Fibre Orientation ◽  
Stress Transfer ◽  
Dynamic Mechanical Properties ◽  
Epoxy Composites ◽  
Neat Epoxy ◽  
Hibiscus Sabdariffa ◽  
Sem Images ◽  
Fibre Composites ◽  
The Matrix

The influence of fibre orientation on physical, mechanical and dynamic mechanical properties of Hibiscus sabdariffa fibre composites has been studied. The composites with longitudinal (0°), transverse (90°) and inclined (45°) fibre orientation were prepared using the hand layup technique. ASTM standards were used for characterization of continuous Hibiscus sabdariffa fibre composites. The composite with longitudinally placed fibres yields improved mechanical characteristics. The addition of longitudinal (0°) oriented continuous Hibiscus sabdariffa fibres to the epoxy enhances tensile strength by 460%, flexural strength by 160% and impact strength by 603% compared to neat epoxy. The longitudinal (0°) fibre oriented composite offers higher resistance to water absorption and thickness swelling compared to other types of composites. All continuous Hibiscus sabdariffa fibre epoxy composites possess an improved storage modulus than the neat epoxy resin. The glass transition temperature of continuous Hibiscus sabdariffa fibre composites is 8%–31% lower than that of neat epoxy. Scanning electron microscopy (SEM) images confirm the existence of voids in the matrix, fibre pullout and crack propagation near the fibre bundle, which indicates the stress transfer between fibre and matrix is non-uniform.

Characterizations of Newly Fabricated Composite Materials Based on Organoclay Incorporated Polymeric Matrix

2017 ◽  
Vol 902 ◽  
pp. 79-82
Author(s):  
Bhajan Lal ◽  
Attaullah ◽  
Shafique Ahmed Arain ◽  
Sajid Haleem ◽  
Sagar Kumar
Keyword(s):  
Composite Materials ◽  
Polyacrylic Acid ◽  
Characteristic Peak ◽  
Sem Images ◽  
Porosity Distribution ◽  
Infra Red ◽  
Ft Ir ◽  
Organic Clay ◽  
Ir Analysis ◽  
Scanning Electron

This article reports the synthesis of engineered materials i.e. composite materials based on matrix (polymeric polyacrylic acid) and reinforcement (organic clay) through 6-hour and 12-hour ultrasonication at different intervals. All the precursors and desired composite materials were characterized by Fourier transform infra-red (FT-IR) and scanning electron microscopy (SEM) techniques. The disappearance of Si-O characteristic peak after ultrasonication justifies the fabrication and incorporation of organoclay in the polymeric structure of polyacrylic acid as revealed by FT-IR analysis. The SEM images interpreted the surface morphology, porosity, distribution and compatibility of matrix and reinforcement in it, which has been achieved successfully in this study for exfoliation form.

scholarly journals An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials

2020 ◽  
Vol 15 (1) ◽  
pp. 113-128
Author(s):  
Chouaib Aribi ◽  
Aissa Bouaissi ◽  
Brahim Safi ◽  
Mohammed Saidi
Keyword(s):  
Composite Materials ◽  
Epoxy Resin ◽  
Bending Strength ◽  
Glass Fibers ◽  
Side Surface ◽  
Sem Images ◽  
Flexural Response ◽  
The Matrix ◽  
Mechanical Performances ◽  
The Impact

Abstract This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical properties of the damaged mortars, which were subjected to different loads ranging between 40 % and 90 %, the mortars specimens were reinforced and repaired using two different composite materials, the first with only epoxy resin, while the second consisted of a mixture of epoxy resin and glass fiber. The results show a significant improvement in the stiffness damaged. Therefore, the reinforced specimens by a layer of resin on the lower side surface increased the bending strength by 58 %, when compared to those control samples. The reinforcement using composite resin-fiber of glass exhibited considerable increases in the safety of constructions. The SEM images of damaged samples with and without repair, revealed the impact of reinforced glass fibers-mortar on the matrix-mortar by improving theirs mechanical performances.

scholarly journals Design, Development and Characterization of Graphene Sand Nano-Composite for Water Filtration

2020 ◽  
Vol 63 (2) ◽  
pp. 118-122
Author(s):  
Shahid Hussain Abro ◽  
Alidad Chandio ◽  
Iftikhar A. Channa ◽  
Abdulaziz S. Alaboodi
Keyword(s):  
Design Development ◽  
Visible Spectroscopy ◽  
Sem Images ◽  
River Sand ◽  
Nano Composite ◽  
Ftir Characterization ◽  
Global Issue ◽  
Scientific Approach ◽  
Uv Visible

  Water purification and filtration is a global issue and many researchers are engaged to resolve this problem by adopting the scientific approach, graphene sand composite was prepared through bio- synthesized technique. River sand was used in this context to remove the impurities already present in the sand 0.1M nitric acid treated the sand and the product was powder black in colour, referred as GSC, graphene sand composite. SEM, XRD and FTIR characterization was used to analyze the results. SEM images showed nano sized layers or sheets of graphene extending outwards.The XRD peak represents the multi lagered graphene structure which is formed by the treatment of the composite with acid and application of the high temperature during experiment UV-visible spectroscopy results successfully reveals the filtration difference between mud water and filtered water.  

Fabrication and characterization of micro alumina zirconia particulate filled dental restorative composite materials

2021 ◽  
Author(s):  
Anoj Meena ◽  
Diksha Bisht ◽  
Ramkumar Yadav ◽  
Sonu Saini ◽  
Govind Sharan Dangayach ◽  
...  
Keyword(s):  
Composite Materials ◽  
Fabrication And Characterization ◽  
Dental Restorative

Fabrication and characterization of phase change composite materials via xylitol infiltrating aligned alumina template

2018 ◽  
Vol 232 ◽  
pp. 1-4 ◽  
Author(s):  
Peng He ◽  
Guoqiang Niu ◽  
Liang Zhou ◽  
Wenjie Li ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Composite Materials ◽  
Phase Change ◽  
Alumina Template ◽  
Fabrication And Characterization

scholarly journals Fabrication and characterization of composite materials based on porous ceramic preform infiltrated by elastomer

2015 ◽  
Vol 63 (1) ◽  
pp. 193-199 ◽  
Author(s):  
P. Chabera ◽  
A. Boczkowska ◽  
A. Witek ◽  
A. Oziębło
Keyword(s):  
Volume Fraction ◽  
Split Hopkinson Pressure Bar ◽  
Porous Ceramic ◽  
Strain Curve ◽  
Sem Images ◽  
Static Compression ◽  
Pressure Infiltration ◽  
Fabrication And Characterization ◽  
Elastomer Composites

Abstract The paper presents the experimental results of fabrication and characterization of ceramic- elastomer composites. They were obtained using pressure infiltration of porous ceramics by elastomer As a result the composites in which two phases are interpenetrating three-dimensionally and topologically throughout the microstructure were obtained. In order to enhance mechanical properties of preforms a high isostatic pressure method was utilized. The obtained ceramic preforms with porosity gradient within the range of 20-40% as well as composites were characterized by X-ray tomography. The effect of volume fraction of pores on residual porosity of composites was examined. These results are in accordance with SEM images which show the microstructure of composites without any delaminations and voids. Such composites exhibit a high initial strength with the ability to sustain large deformations due to combining the ceramic stiffness and rubbery elasticity of elastomer. Static compression tests for the obtained composites were carried out and the energy dissipated during compression was calculated as the area under the stress-strain curve. The dynamic behavior of the composite was investigated using the split Hopkinson pressure bar technique. It was found that ceramic-elastomer composites effectively dissipate the energy. Moreover, a ballistic test was carried out using armor piercing bullets.

Interfacial shear strength characterization of GMA-grafted UHMWPE fiber/epoxy/nano clay hybrid nanocomposite materials

RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 41793-41799 ◽  
Author(s):  
Mohammad Mohammadalipour ◽  
Mahmood Masoomi ◽  
Mojtaba Ahmadi ◽  
Somayeh Safi
Keyword(s):  
Glycidyl Methacrylate ◽  
Interfacial Shear Strength ◽  
Nanocomposite Materials ◽  
Interfacial Shear ◽  
Hybrid Nanocomposite ◽  
Uhmwpe Fiber ◽  
Nano Clay ◽  
Strength Characterization ◽  
Ultra High Molecular Weight

Interfacial properties of glycidyl methacrylate grafted ultra-high molecular weight polyethylene fibers and nano clay/epoxy resin were characterized by a microdroplet test.

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