AC breakdown strength and glass transition temperature of mesoporous silica/EP composite

2016 ◽  
Author(s):  
Pan Luo ◽  
Shaohui Wang ◽  
Bing Feng ◽  
Qiulin Mu ◽  
Man Xu ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Mesoporous Silica ◽  
Breakdown Strength

scholarly journals Mechanical, Dielectric, and Thermal Attributes of Polyimides Stemmed Out of 4, 4’–Diaminodiphenyl Ether

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 173
Author(s):  
Panpan Zhang ◽  
Ke Zhang ◽  
Shuliang Dou ◽  
Jiupeng Zhao ◽  
Xiangqiao Yan ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Dielectric Loss ◽  
Breakdown Strength ◽  
Electric Breakdown ◽  
Practical Applications ◽  
The One ◽  
In Virtue Of

Several kinds of polyimide (PI) films stemmed out of 4, 4’–diaminodiphenyl ether, as well as various structurally various aromatic dianhydride, were prepared. The films’ mechanical, dielectric, and dynamic mechanical attributes were put under investigation. According the findings, the PI films’ performance is significantly different as a result of their diverse structure. PI’s dielectric constant and dielectric loss tangent of abides by the increasing order below: PMDA-PI>BTDA-PI>BPDA-PI. Moreover, the electric breakdown strength of BTDA-PI (478.90 kV/mm) presents a lot higher value compared to the one PMDA-PI (326.80 kV/mm) and BPDA-PI (357.07 kV/mm). In particular, BTDA-PI film possesses high electric breakdown strength about 478.90 kV/mm. In addition, PI’s glass transition temperature (Tg) are, respectively, 276 °C (BTDA-PI), and 290 °C (BPDA-PI), as well as 302 °C (PMDA-PI). Therefore, in virtue of their various structures and performances, practical applications of PI films can exert significant role in the electronics and microelectronics industries.

Revisiting the glass transition temperature of water-glycerol mixtures in bulk and confined in mesoporous silica.

2021 ◽  
Author(s):  
Ivette Angarita ◽  
María Florencia Mazzobre ◽  
Horacio R Corti ◽  
M Paula Longinotti
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Mesoporous Silica ◽  
Mixture Composition ◽  
Confined Water ◽  
Water Glycerol

In this work we revisited the glass transition temperature (Tg) behavior of bulk and confined water-glycerol solutions, as a function of the mixture composition and size of the confinement media,...

Characterising glass transition temperatures and glass dynamics in mesoporous silica-based amorphous drugs

2019 ◽  
Vol 21 (35) ◽  
pp. 19686-19694 ◽  
Author(s):  
Eric Ofosu Kissi ◽  
Michael T. Ruggiero ◽  
Nele-Johanna Hempel ◽  
Zihui Song ◽  
Holger Grohganz ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Mesoporous Silica ◽  
Transition Temperatures ◽  
Glass Transition Temperatures ◽  
Drug Molecules ◽  
Glass Dynamics ◽  
Amorphous Drugs ◽  
Amorphous Drug

Amorphous drug molecules bound to MPS surface are restricted in mobility, but they exhibit a primary glass transition temperature.

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