Mechanical Performance Studies on Composites Using Polyethylene Terephthalate Char Derived from Polyethylene Terephthalate Waste Bottle–Reinforced Polyester Composites

2020 ◽  
Vol 9 (1) ◽  
pp. 20190066
Author(s):  
Sundarakannan Rajendran ◽  
Arumugaprabu Veerasimman ◽  
Manikandan Vairavan ◽  
Vigneshwaran Shanmugam ◽  
Deepak Joel Johnson Rajendran
Keyword(s):  
Polyethylene Terephthalate ◽  
Performance Studies ◽  
Mechanical Performance ◽  
Polyester Composites

scholarly journals Printability and Tensile Performance of 3D Printed Polyethylene Terephthalate Glycol Using Fused Deposition Modelling

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1220 ◽  
Author(s):  
Sofiane Guessasma ◽  
Sofiane Belhabib ◽  
Hedi Nouri
Keyword(s):  
Polyethylene Terephthalate ◽  
Mechanical Performance ◽  
Substantial Reduction ◽  
Fused Deposition Modelling ◽  
X Ray ◽  
Fused Deposition ◽  
Wide Range ◽  
Tensile Performance ◽  
3D Printed ◽  
Micro Tomography

Polyethylene terephthalate glycol (PETG) is a thermoplastic formed by polyethylene terephthalate (PET) and ethylene glycol and known for his high impact resistance and ductility. The printability of PETG for fused deposition modelling (FDM) is studied by monitoring the filament temperature using an infra-red camera. The microstructural arrangement of 3D printed PETG is analysed by means of X-ray micro-tomography and tensile performance is investigated in a wide range of printing temperatures from 210 °C to 255 °C. A finite element model is implemented based on 3D microstructure of the printed material to reveal the deformation mechanisms and the role of the microstructural defects on the mechanical performance. The results show that PETG can be printed within a limited range of printing temperatures. The results suggest a significant loss of the mechanical performance due to the FDM processing and particularly a substantial reduction of the elongation at break is observed. The loss of this property is explained by the inhomogeneous deformation of the PETG filament. X-ray micro-tomography results reveal a limited amount of process-induced porosity, which only extends through the sample thickness. The FE predictions point out the combination of local shearing and inhomogeneous stretching that are correlated to the filament arrangement within the plane of construction.

Mechanical properties and fiber characteristics of glass fiber/carbon fiber reinforced polyethylene terephthalate hybrid composites fabricated by direct fiber feeding injection molding

2018 ◽  
Vol 38 (6) ◽  
pp. 513-523 ◽  
Author(s):  
Wiranphat Thodsaratpreeyakul ◽  
Putinun Uawongsuwan ◽  
Akio Kataoka ◽  
Takanori Negoro ◽  
Hiroyuki Hamada
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Injection Molding ◽  
Glass Fiber ◽  
Polyethylene Terephthalate ◽  
Fiber Orientation ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Fiber Distribution ◽  
Volume Fractions

Abstract Improving the applicability of polyethylene terephthalate (PET) by carbon fiber/glass fiber reinforcement is of great interest. Glass fiber (GF)/carbon fiber (CF)/PET hybrid composites were fabricated by direct fiber feeding injection molding (DFFIM) process. The aim of DFFIM is to obtain longer fibers in composites in order to improve their mechanical properties. In this study, the mechanical properties of GF/PET composites fabricated by conventional injection molding and hybrid GF/CF/PET composites fabricated by DFFIM process were investigated. The influence of GF and CF volume fractions on fiber distribution, fiber orientation, and fiber length is discussed. Fiber distribution status was quantitatively measured by the fiber distribution index. Fiber agglomeration problem was observed by scanning electron microscopy. The results indicate that incorporating CF in GF/CF/PET hybrid composites by the DFFIM process greatly enhances mechanical performance even when only a small amount of CF is added. Too high GF content leads to less effective CF hybridization because it causes poor fiber distribution and poor fiber orientation and intensifies fiber attrition. The ideal volume fractions of GF and CF for fabricating GF/CF/PET hybrid composites by using DFFIM are provided.

FIB-Etching of Polymer/Metal Laminates and its Effect on Mechanical Performance

2014 ◽  
Vol 20 (6) ◽  
pp. 1826-1834
Author(s):  
Enne Faber ◽  
Willem P. Vellinga ◽  
Jeff T.M. De Hosson
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Terephthalate ◽  
Cross Sections ◽  
Focused Ion Beam ◽  
Mechanical Performance ◽  
Ion Beam ◽  
Ion Beam Etching ◽  
Polymer Metal ◽  
The Impact

AbstractThis paper investigates the adhesive interface in a polymer/metal (polyethylene terephthalate/steel) laminate that is subjected to uniaxial strain. Cross-sections perpendicular to such interfaces were created with a focused ion beam and imaged with scanning electron microscopy during straining in the electron microscope. During in situ straining, glide steps formed by the steel caused traction at the interface and initiated crazes in the polyethylene terephthalate (PET). These crazes readily propagated along the free surface of the PET layer. Similar crazing has not been previously encountered in laminates that were pre-strained or in numerical calculations. The impact of focused ion beam treatments on mechanical properties of the polymer/metal laminate system was therefore investigated. It was found that mechanical properties such as toughness of PET are dramatically influenced by focused ion beam etching. It was also found that this change in mechanical properties has a different effect on the pre-strained and in situ strained samples.

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