A review on polyhedral oligomeric silsesquioxanes as a new multipurpose nanohybrid additive for poly(lactic acid) and poly(lactic acid) hybrid composites

2022 ◽  
Author(s):  
Muhammad Saeed Ullah ◽  
Nazlı Yazıcı ◽  
Abdulmounem Alchekh Wis ◽  
Güralp Özkoç ◽  
Mehmet Kodal
Keyword(s):  
Lactic Acid ◽  
Hybrid Composites ◽  
Poly Lactic Acid ◽  
Polyhedral Oligomeric Silsesquioxanes

Mechanical Characteristics of Chitosan Dispersed Poly Lactic Acid/Basalt Fiber Hybrid Composites

2018 ◽  
Vol 13 (1) ◽  
pp. 54-60
Author(s):  
A. Arul Jeya Kumar ◽  
I. Ashok Kumar ◽  
V. Srinivasan ◽  
N. Mohamad Raffi
Keyword(s):  
Lactic Acid ◽  
Mechanical Characteristics ◽  
Hybrid Composites ◽  
Basalt Fiber ◽  
Poly Lactic Acid

scholarly journals Research of Binary and Ternary Composites Based on Selected Aliphatic or Aliphatic–Aromatic Polymers, 5CB or SWCN toward Biodegradable Electrodes

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2480
Author(s):  
Patryk Fryń ◽  
Beata Jewłoszewicz ◽  
Krzysztof Artur Bogdanowicz ◽  
Wojciech Przybył ◽  
Agnieszka Gonciarz ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Biodegradable Polymers ◽  
Chemical Structure ◽  
Hybrid Composites ◽  
Water Drop ◽  
Poly Lactic Acid ◽  
Neat Polymer ◽  
Static Contact ◽  
Vis Spectroscopy ◽  
Hybrid Layers

The main goal of this paper was to study the optical, electrical, and thermal properties of hybrid composites based on biodegradable polymers (L,D-poly(lactic acid), polycaprolactone or Ecoflex®), single walled carbon nanotubes (SWCN), and 4′-pentyl-4-biphenylcarbonitrile (5CB). The biodegradable polymers’ binary and ternary compositions were analyzed in detail by ultraviolet and visible (UV–Vis) spectroscopy taking into consideration their chemical structure and interactions with 5CB and SWCN. Differential scanning calorimetry (DSC) studies of the created hybrid layers showed thermal stability and changes in glass transition temperature and melting point in comparison to neat polymers, depending on the chemical structure of the polymer used and the type of composition. Morphology of the created layers were investigated by atomic force and polarizing microscopy. The static contact angle measurements of a water drop showed that all of the neat polymer layers were hydrophobic with angle values ranging from 108° to 115°. In addition, in the case of the Ecoflex® layers, both with and without additives, a rapid sorption of the deposited water drop was observed. Finally, a simple device with poly(ethylene terephthalate) (PET)/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7): [6,6]-phenyl-C71-butyric acid methyl ester (PC70BM)/Ag/biodegradable polymer:SWCN architecture was constructed and tested using an infrared (IR) thermographic camera to investigate the surface defects on the created hybrid layers. Increasing the SWCN admixture from 0.01 to 0.5% significantly improved the conductivity only in the case of L,D-poly(lactic acid):SWCN (10:0.5), for which above 5 V, a current with a resistance of 3030.7 Ω could be measured. In order to use the created layers as flexible electrodes, the first experiments were carried out with an admixture of SWCN and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as conductive compounds.

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