Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites.
J Vis Exp
; (163)2020 09 19.
Article
in En
| MEDLINE
| ID: mdl-33016945
ABSTRACT
In this work, an easy, low-cost, and widely applicable method was developed to improve the compatibility between the ceramic fillers and the polymer matrix by adding 3-aminopropyltriethoxysilane (KH550) as a coupling agent during the fabrication process of BaTiO3-P(VDF-CTFE) nanocomposites through solution casting. Results show that the use of KH550 can modify the surface of ceramic nanofillers; therefore, good wettability on the ceramic-polymer interface was achieved, and the enhanced energy storage performances were obtained by a suitable amount of the coupling agent. This method can be used to prepare flexible composites, which is highly desirable for the production of high-performance film capacitors. If an excessive amount of coupling agent is used in the process, the non-attached coupling agent can participate in complex reactions, which leads to a decrease in dielectric constant and an increase in dielectric loss.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polymers
/
Electricity
/
Nanocomposites
Language:
En
Journal:
J Vis Exp
Year:
2020
Type:
Article