scholarly journals Mechanical and Electrical Properties of Polylactic Acid with Aliphatic-Aromatic Polyester

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Katsuyoshi Shinyama
Keyword(s):  
Electrical Properties ◽  
Polylactic Acid ◽  
Breakdown Strength ◽  
Electric Breakdown ◽  
Electrical Wire ◽  
Temperature Range ◽  
Mechanical And Electrical Properties ◽  
Aromatic Polyester

Assuming an application where polylactic acid (PLA), a hard bioplastic, is used to sheath electrical wire, the author added 20 wt% of aliphatic-aromatic polyester or polybutyrate adipate terephthalate (PBAT), a soft resin, to PLA and then investigated the softened PLA’s mechanical and electrical properties. As a result of adding PBAT to PLA, Tg shifted to about 10°C lower than PLA. In addition, adding PBAT to PLA made the PLA softer and even more so at temperatures above 40°C. Furthermore, adding PBAT to PLA decreased the electric breakdown strength (EB) of the PLA by about 1 MV/cm over the temperature range of 0°C to 50°C, and EB was slightly higher than that of PVC over the temperature range of −10 to 60°C.

scholarly journals Mechanical and electrical properties of polylactic acid/carbon nanotube composites by rolling process

2018 ◽  
Vol 25 (5) ◽  
pp. 891-901 ◽  
Author(s):  
Lijun Wang ◽  
Jianhui Qiu ◽  
Eiichi Sakai
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Polylactic Acid ◽  
Molecular Orientation ◽  
Rolling Direction ◽  
Rolling Process ◽  
Molecular Structures ◽  
Scanning Calorimetry ◽  
Mechanical And Electrical Properties

AbstractIn this work, the rolling process was employed to fabricate polylactic acid/multi-walled carbon nanotube (PLA/MWCNT) composites at room temperature. The effects of the rolling conditions on the mechanical and electrical properties of the fabricated composites were investigated. The evolution processes of the internal molecular structures, i.e. changes in molecular orientation and crystallinity, were examined by X-ray diffraction, differential scanning calorimetry, and density method. The results suggested that the molecular orientation improved; however, the crystallinity decreased when the rolling ratio increased. The analysis of the mechanical properties revealed that the rolled composites displayed anisotropy during the rolling process. In the rolling direction, after adding 1 wt.% MWCNTs, the tensile strength increased from 58.6 to 94.3 MPa with the rolling ratio, whereas the fracture strain sharply increased to 131.5% at the rolling ratio of 60%. In addition to the mechanical properties, electrical resistivity was also investigated; notably, this property was not significantly affected by the rolling process. Furthermore, the MWCNT dispersion and morphology were investigated by scanning electron microscopy. These findings offer a simple and effective method to fabricate conductive composites with excellent mechanical properties.

scholarly journals Mapping the mechanical and electrical properties of commercial silicone elastomer formulations for stretchable transducers

2020 ◽  
Vol 8 (4) ◽  
pp. 1273-1279 ◽  
Author(s):  
Justina Vaicekauskaite ◽  
Piotr Mazurek ◽  
Sindhu Vudayagiri ◽  
Anne Ladegaard Skov
Keyword(s):  
Electrical Properties ◽  
Dielectric Permittivity ◽  
Breakdown Strength ◽  
Elongation At Break ◽  
Low Leakage ◽  
Mechanical And Electrical Properties ◽  
Low Leakage Current ◽  
High Dielectric Permittivity ◽  
High Elongation ◽  
High Dielectric

Elastomers for fabricating soft and stretchable transducers require high elongation at break, high dielectric permittivity, high breakdown strength and low leakage current. We map blends of commercial silicones to find optimum compositions.

scholarly journals Influence of Electron Beam Irradiation on Electrical Insulating Properties of PLA with Soft Resin Added †

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 898 ◽  
Author(s):  
Katsuyoshi Shinyama
Keyword(s):  
Electron Beam ◽  
Polylactic Acid ◽  
Irradiation Dose ◽  
Electron Beam Irradiation ◽  
Breakdown Strength ◽  
Electric Breakdown ◽  
The Other ◽  
Beam Irradiation ◽  
Other Hand ◽  
Insulating Properties

Polylactic acid (PLA), a bioplastic, is a hard resin, and requires softening in order to be used in electric wire sheaths. A soft resin was added to PLA in order to soften it, but this caused the electric breakdown strength (EB) to decrease. In this study, PLA with soft resin added was irradiated with an electron beam and the influence of the electron beam irradiation on EB was examined. The irradiation dose was set at 100 kGy. At 25 °C, the EB of PLA with no soft resin added decreased due to the irradiation. On the other hand, the EB of PLA with soft resin added showed almost no change due to the irradiation. At 80 °C, the EB of PLA with no soft resin added decreased due to the irradiation, as was the case at 25 °C. On the other hand, the EB of PLA with soft resin added increased due to the irradiation.

Study of mechanical and electrical properties of AlMgSi alloys

2010 ◽  
Vol 35 (1) ◽  
pp. 59-69 ◽  
Author(s):  
Fares Serradj ◽  
Rebal Guemini ◽  
Hichem Farh ◽  
Karim Djemmal
Keyword(s):  
Electrical Properties ◽  
Mechanical And Electrical Properties

scholarly journals The Physical-Mechanical and Electrical Properties of Cast Aluminum-Based Alloys Reinforced with Diamond Nanoparticles

2015 ◽  
Vol 57 (11) ◽  
pp. 1485-1490 ◽  
Author(s):  
S. A. Vorozhtsov ◽  
А. P. Khrustalyov ◽  
D. G. Eskin ◽  
S. N. Кulkov ◽  
N. Alba-Baena
Keyword(s):  
Electrical Properties ◽  
Cast Aluminum ◽  
Diamond Nanoparticles ◽  
Mechanical And Electrical Properties
Sign in / Sign up

Export Citation Format

Share Document