Mechanical Properties of Short Polyethylene Terephthalate Fiber-Thermoplastic Polyurethane Composite

1993 ◽  
Vol 19 (1-2) ◽  
pp. 63-74 ◽  
Author(s):  
Sunil. K. N. Kutty ◽  
Golok. B. Nando
Keyword(s):  
Mechanical Properties ◽  
Polyethylene Terephthalate ◽  
Thermoplastic Polyurethane ◽  
Polyurethane Composite

scholarly journals Copper-Polyurethane Composite Materials: Particle Size Effect on the Physical-Chemical and Antibacterial Properties

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1934
Author(s):  
Cristian Miranda ◽  
Johanna Castaño ◽  
Emky Valdebenito-Rolack ◽  
Felipe Sanhueza ◽  
Rody Toro ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Composite Materials ◽  
Thermoplastic Polyurethane ◽  
Antibacterial Properties ◽  
Copper Particle ◽  
Copper Particles ◽  
Polyurethane Composite ◽  
Natural Concentration ◽  
Blending Method

In this work, thermoplastic polyurethane (TPU) composites incorporated with 1.0 wt% Cu particles were synthesized by the melt blending method. The effect of the incorporated copper particle size on the antibacterial, thermal, rheological, and mechanical properties of TPU was investigated. The obtained results showed that (i) the addition of copper particles increased the thermal and mechanical properties because they acted as co-stabilizers of polyurethane (PU) (ii) copper nanoparticles decreased the viscosity of composite melts, and (iii) microparticles > 0.5 µm had a tendency to easily increase the maximum torque and formation of agglomerates. SEM micrographics showed that a good mixture between TPU and copper particles was obtained by the extrusion process. Additionally, copper-TPU composite materials effectively inhibited the growth of the Gram-negative Escherichia coli and the Gram-positive Staphylococcus aureus. Considering that the natural concentration of copper in the blood is in the range of 0.7–0.12 mg/L and that the total migration value of copper particles from TPU was 1000 times lower, the results suggested that TPU nanocomposites could be adequately employed for biomedical applications without a risk of contamination.

Enhanced mechanical properties of silica nanoparticle-covered cross-linking graphene oxide filled thermoplastic polyurethane composite

2018 ◽  
Vol 42 (4) ◽  
pp. 3069-3077 ◽  
Author(s):  
Hui Ren ◽  
Yuming Zhou ◽  
Man He ◽  
Ran Xu ◽  
Binbin Ding ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Thermoplastic Polyurethane ◽  
Silica Nanoparticle ◽  
Cross Linking ◽  
Simultaneous Reduction ◽  
Polyurethane Composite

In this work, stacking graphene oxide (GOE) and silica nanoparticle-covered cross-linking graphene oxide (GOES) were successfully synthesized by using EDA simultaneous reduction and functionalization GO.

A novel recycled polyethylene terephthalate/polyamide 11 (rPET/PA11) thermoplastic blend

2021 ◽  
pp. 147776062110010
Author(s):  
Zahid Iqbal Khan ◽  
Zurina Binti Mohamad ◽  
Abdul Razak Bin Rahmat ◽  
Unsia Habib ◽  
Nur Amira Sahirah Binti Abdullah
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Flexural Strength ◽  
Polyethylene Terephthalate ◽  
Practical Implication ◽  
Polyamide 11 ◽  
Recycled Polyethylene ◽  
Twin Screw ◽  
Electron Microscopy Analysis ◽  
The Impact

This work explores a novel blend of recycled polyethylene terephthalate/polyamide 11 (rPET/PA11). The blend of rPET/PA11 was introduced to enhance the mechanical properties of rPET at various ratios. The work’s main advantage was to utilize rPET in thermoplastic form for various applications. Three different ratios, i.e. 10, 20 and 30 wt.% of PA11 blend samples, were prepared using a twin-screw extruder and injection moulding machine. The mechanical properties were examined in terms of tensile, flexural and impact strength. The tensile strength of rPET was improved more than 50%, while the increase in tensile strain was observed 42.5% with the addition of 20 wt.% of PA11. The improved properties of the blend were also confirmed by the flexural strength of the blends. The flexural strength was increased from 27.9 MPa to 48 MPa with the addition of 30 wt.% PA11. The flexural strain of rPET was found to be 1.1%. However, with the addition of 10, 20 and 30 wt.% of PA11, the flexural strain was noticed as 1.7, 2.1, and 3.9% respectively. The impact strength of rPET/PA11 at 20 wt.% PA11 was upsurged from 110.53 to 147.12 J/m. Scanning electron microscopy analysis revealed a dispersed PA11 domain in a continuous rPET matrix morphology of the blends. This work practical implication would lead to utilization of rPET in automobile, packaging, and various industries.

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