Abstract
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.
Highlights
Aromatic polyimides (PIs) have been deemed as crucial high-performance polymers classes based on the integration of excellent mechanical, electrical, and thermal properties, as well as chemical and solvent resistance [1,2,3,4,5]
These materials are being used in numerous applications, which range from engineering plastics under aerospace industries to the films for the printed electronic circuitry applications [6,7,8,9], as a result of the superior excellent dimensional stability, the temperature under high glass transition, good optical transparency, good electrical resistivity, low water absorption, and relative permittivity [10,11,12,13]
Ever since the commercialization of the Kapton type PI began the usage in the early 1960s, a series of PIs composed of different diamine and dianhydride have been reported [15,16,17,18]
Summary
Aromatic polyimides (PIs) have been deemed as crucial high-performance polymers classes based on the integration of excellent mechanical, electrical, and thermal properties, as well as chemical and solvent resistance [1,2,3,4,5] These materials are being used in numerous applications, which range from engineering plastics under aerospace industries to the films for the printed electronic circuitry applications [6,7,8,9], as a result of the superior excellent dimensional stability, the temperature under high glass transition, good optical transparency, good electrical resistivity, low water absorption, and relative permittivity [10,11,12,13]. Understanding of PI films’ structure–property relationships in practical applications
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
