Influence of Film Composition on the Morphology, Mechanical Properties, and Surfactant Recovery of Phase-Separated Phospholipid-Perfluorinated Fatty Acid Mixed Monolayers

Langmuir ◽  
2012 ◽  
Vol 28 (43) ◽  
pp. 15150-15159 ◽  
Author(s):  
Ala’a F. Eftaiha ◽  
Sophie M. K. Brunet ◽  
Matthew F. Paige
Keyword(s):  
Mechanical Properties ◽  
Fatty Acid ◽  
Mixed Monolayers ◽  
Film Composition ◽  
Surfactant Recovery

scholarly journals Mechanical properties of polymer-talc binary composite systems: effects of fatty acid amides.

1993 ◽  
Vol 66 (10) ◽  
pp. 724-730
Author(s):  
Osamu SHIMOMURA ◽  
Yoshio TAKAI ◽  
Masami SAWADA ◽  
Shigetoshi TAKAHASHI ◽  
Kunio GOTO
Keyword(s):  
Mechanical Properties ◽  
Fatty Acid ◽  
Fatty Acid Amides ◽  
Composite Systems ◽  
Binary Composite

scholarly journals A Direct Comparison of Three Buckling-Based Methods to Measure the Elastic Modulus of Nanobiocomposite Thin Films

2020 ◽  
Author(s):  
Taylor C. Stimpson ◽  
Daniel A. Osorio ◽  
Emily D. Cranston ◽  
Jose Moran-Mirabal
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Mechanical Properties ◽  
Elastic Modulus ◽  
Elastic Moduli ◽  
Input Parameter ◽  
Layer By Layer ◽  
Free Standing ◽  
Film Composition ◽  
Parameter Values

<p>To engineer tunable thin film materials, accurate measurement of their mechanical properties is crucial. However, characterizing the elastic modulus with current methods is particularly challenging for sub-micrometer thick films and hygroscopic materials because they are highly sensitive to environmental conditions and most methods require free-standing films which are difficult to prepare. In this work, we directly compared three buckling-based methods to determine the elastic moduli of supported thin films: 1) biaxial thermal shrinking, 2) uniaxial thermal shrinking, and 3) the mechanically compressed, strain-induced elastic buckling instability for mechanical measurements (SIEBIMM) method. Nanobiocomposite model films composed of cellulose nanocrystals (CNCs) and polyethyleneimine (PEI) were assembled using layer-by-layer deposition to control composition and thickness. The three buckling-based methods yielded the same trends and comparable values for the elastic moduli of each CNC-PEI film composition (ranging from 15 – 44 GPa, depending on film composition). This suggests that the methods are similarly effective for the quantification of thin film mechanical properties. Increasing the CNC content in the films statistically increased the modulus, however, increasing the PEI content did not lead to significant changes. The standard deviation of elastic moduli determined from SIEBIMM was 2-4 times larger than for thermal shrinking, likely due to extensive cracking and partial film delamination. In light of these results, biaxial thermal shrinking is recommended as the method of choice because it affords the simplest implementation and analysis and is the least sensitive to small deviations in the input parameter values, such as film thickness or substrate modulus.</p>

Dual effects of fatty acid salt on the mechanical properties and morphology of styrene-based ionomers

2017 ◽  
Vol 75 (5) ◽  
pp. 2071-2083 ◽  
Author(s):  
Young-Min Kim ◽  
Kwang-Hwan Ko ◽  
Young-Wun Kim ◽  
Jeong-A Yu ◽  
Joon-Seop Kim
Keyword(s):  
Mechanical Properties ◽  
Fatty Acid ◽  
Acid Salt ◽  
Fatty Acid Salt
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