The influence of moisture on charge relaxation in modified polyimide films

2016 ◽  
Vol 248 (3) ◽  
pp. 33-38
Author(s):  
A.M. Kamalov ◽  
M.E. Borisova
Keyword(s):  
Polyimide Films ◽  
Charge Relaxation

Influence of manufacturing techniques R-BAPB polyimide films on charge relaxation

2020 ◽  
Author(s):  
Almaz Kamalov ◽  
Margarita Borisova ◽  
Andrey Didenko ◽  
Gleb Vaganov ◽  
Vladimir Yudin
Keyword(s):  
Polyimide Films ◽  
Charge Relaxation ◽  
Manufacturing Techniques

The Charge Relaxation in Partially-Crystalline Polyimide Films

2018 ◽  
Author(s):  
Margarita Borisova ◽  
Almaz Kamalov ◽  
Vladimir Yudin
Keyword(s):  
Polyimide Films ◽  
Charge Relaxation

The Charge Relaxation in Partially-Crystalline Polyimide Films

2018 ◽  
Author(s):  
Margarita Borisova ◽  
Almaz Kamalov ◽  
Vladimir Yudin
Keyword(s):  
Polyimide Films ◽  
Charge Relaxation

scholarly journals The influence of moisture on charge relaxation in modified polyimide films

2016 ◽  
Vol 2 (3) ◽  
pp. 188-192 ◽  
Author(s):  
Almaz M. Kamalov ◽  
Margarita E. Borisova
Keyword(s):  
Polyimide Films ◽  
Charge Relaxation

Electron microscopy and diffraction studies of polyimides

1983 ◽  
Vol 41 ◽  
pp. 28-29
Author(s):  
O.C. de Hodgins ◽  
K. R. Lawless ◽  
R. Anderson
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Structural Features ◽  
Inert Atmosphere ◽  
Polyimide Films ◽  
Resolution Electron ◽  
The Matrix ◽  
High Resolution Electron Microscope ◽  
Diffraction Patterns ◽  
Polymeric Samples

Commercial polyimide films have shown to be homogeneous on a scale of 5 to 200 nm. The observation of Skybond (SKB) 705 and PI5878 was carried out by using a Philips 400, 120 KeV STEM. The objective was to elucidate the structural features of the polymeric samples. The specimens were spun and cured at stepped temperatures in an inert atmosphere and cooled slowly for eight hours. TEM micrographs showed heterogeneities (or nodular structures) generally on a scale of 100 nm for PI5878 and approximately 40 nm for SKB 705, present in large volume fractions of both specimens. See Figures 1 and 2. It is possible that the nodulus observed may be associated with surface effects and the structure of the polymers be regarded as random amorphous arrays. Diffraction patterns of the matrix and the nodular areas showed different amorphous ring patterns in both materials. The specimens were viewed in both bright and dark fields using a high resolution electron microscope which provided magnifications of 100,000X or more on the photographic plates if desired.

Polar Anchoring Properties of Photoalignment Polyimide Films

2019 ◽  
pp. 324
Author(s):  
Wei-Wei Chen ◽  
Jui-Wen Pan ◽  
Shie-Chang Jeng
Keyword(s):  
Polyimide Films

Influence of Nanosized Cerium Oxide on the Thermal Characteristics of Aromatic Polyimide Films

2020 ◽  
Vol 62 (2) ◽  
pp. 196-204
Author(s):  
I. V. Gofman ◽  
A. L. Nikolaeva ◽  
I. V. Abalov ◽  
E. M. Ivan’kova ◽  
I. V. Kuntzman ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Thermal Characteristics ◽  
Polyimide Films ◽  
Aromatic Polyimide

scholarly journals An Assessment of Surface Treatments for Adhesion of Polyimide Thin Films

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1955
Author(s):  
Marco Cen-Puc ◽  
Andreas Schander ◽  
Minerva G. Vargas Gleason ◽  
Walter Lang
Keyword(s):  
Flexible Electronics ◽  
Oxygen Plasma ◽  
Reactive Ion Etching ◽  
Peel Test ◽  
Scratch Test ◽  
Peel Strength ◽  
Surface Treatments ◽  
Oxygen Plasma Treatment ◽  
Polyimide Films ◽  
Ion Etching

Polyimide films are currently of great interest for the development of flexible electronics and sensors. In order to ensure a proper integration with other materials and PI itself, some sort of surface modification is required. In this work, microwave oxygen plasma, reactive ion etching oxygen plasma, combination of KOH and HCl solutions, and polyethylenimine solution were used as surface treatments of PI films. Treatments were compared to find the best method to promote the adhesion between two polyimide films. The first selection of the treatment conditions for each method was based on changes in the contact angle with deionized water. Afterward, further qualitative (scratch test) and a quantitative adhesion assessment (peel test) were performed. Both scratch test and peel strength indicated that oxygen plasma treatment using reactive ion etching equipment is the most promising approach for promoting the adhesion between polyimide films.

Enhancing Q-Switched Fiber Laser Performance Based on Reverse Saturable and Saturable Absorption Properties of CuCrO2 Nanoparticle-Polyimide Films

2021 ◽  
Author(s):  
Yingtian Xu ◽  
Hanfei Hu ◽  
Hongda Wu ◽  
Chongyang Xu ◽  
He Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorption ◽  
Polyimide Films ◽  
Absorption Properties ◽  
Laser Performance

High frequency development and discharge characteristics of SiO2 modified polyimide films

2020 ◽  
Author(s):  
Zhaoliang Xing ◽  
Pengfei Wu ◽  
Helin Xu ◽  
Zian Ding ◽  
Jianhong Hao ◽  
...  
Keyword(s):  
High Frequency ◽  
Polyimide Films ◽  
Discharge Characteristics
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