The influence of a magnetic field on the morphology and thermomechanical properties of a liquid crystalline epoxy carbon composite

2018 ◽  
Vol 39 (S4) ◽  
pp. E2573-E2583 ◽  
Author(s):  
Beata Mossety-Leszczak ◽  
Maciej Kisiel ◽  
Piotr Szałański ◽  
Magdalena Włodarska ◽  
Urszula Szeluga ◽  
...  
2004 ◽  
Vol 42 (5) ◽  
pp. 758-765 ◽  
Author(s):  
Miyuki Harada ◽  
Mitsukazu Ochi ◽  
Masayuki Tobita ◽  
Tohru Kimura ◽  
Tsukasa Ishigaki ◽  
...  

1999 ◽  
Vol 559 ◽  
Author(s):  
Derek M. Lincoln ◽  
Elliot P. Douglas

ABSTRACTWe have investigated the effect of various processing variables on the magnetic field orientation of a liquid crystalline epoxy. By using a modified fractional factorial design, we created an empirical model which can be used to predict the degree of orientation as a function of these variables. The model predicts the correct qualitative trends, namely that orientation increases with increasing magnetic field strength, increases with increasing time in the field, and decreases with increasing B-staging. The model also reveals some surprising effects of B-staging on the degree of orientation.


2016 ◽  
Vol 57 (4) ◽  
pp. 424-431 ◽  
Author(s):  
Yi-Sheng Lin ◽  
Steve Lien-Chung Hsu ◽  
Tsung-Han Ho ◽  
Shi-Shiun Cheng ◽  
Yu-Hsiang Hsiao

2015 ◽  
Vol 72 ◽  
pp. 238-255 ◽  
Author(s):  
Beata Mossety-Leszczak ◽  
Beata Strachota ◽  
Adam Strachota ◽  
Miloš Steinhart ◽  
Miroslav Šlouf

2003 ◽  
Vol 41 (14) ◽  
pp. 1739-1743 ◽  
Author(s):  
Miyuki Harada ◽  
Mitsukazu Ochi ◽  
Masayuki Tobita ◽  
Tohru Kimura ◽  
Tsukasa Ishigaki ◽  
...  

1998 ◽  
Vol 31 (15) ◽  
pp. 4730-4738 ◽  
Author(s):  
Brian C. Benicewicz ◽  
Mark E. Smith ◽  
Jim D. Earls ◽  
Ralph D. Priester ◽  
Stefan M. Setz ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1913
Author(s):  
Yi-Sheng Lin ◽  
Steve Lien-Chung Hsu ◽  
Tsung-Han Ho ◽  
Li-Cheng Jheng ◽  
Yu-Hsiang Hsiao

In order to enhance the thermomechanical behaviors of epoxy molding compounds, the hexagonal boron nitride (h-BN) fillers were incorporated in a ketone mesogenic liquid crystalline epoxy (K–LCE) matrix to prepare a high-performance epoxy composites. The h-BN was modified by surface coupling agent 3-aminopropyltriethoxysilane (APTES). The grafting of silane molecules onto the surface of BN fillers improved the compatibility and homogeneous dispersion state of BN fillers in the K–LCE matrix with a strong interface interaction. The surface-modified BN fillers were characterized using Fourier transform infrared spectroscopy. The thermomechanical properties and morphologies of K–LCE/BN composites loading with different contents of modified BN fillers, ranging from 0.50 to 5.00 wt%, were investigated. These results show that modified BN fillers uniformly dispersed in K–LCE matrix, contributing to the enhancement in storage modulus, glass transition temperatures, impact strength and reduction in the coefficient of thermal expansion (CTE). The thermal stability and char yield of the K–LCE/BN composites were increased by increasing the amount of modified BN fillers and the thermal decomposition temperatures of composites were over 370 °C. The thermal conductivity of the K–LCE/BN composites was up to 0.6 W/m·K, for LC epoxy filled with 5.00-wt%-modified BN fillers. Furthermore, the K–LCE/BN composites have excellent thermal and mechanical properties compared to those of the DGEBA/BN composites.


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