Premium
Comparative studies of silane coupled e‐glass fiber and e‐glass fiber reinforced bismaleimide‐epoxy hydroxylated BaTiO 3 nanocomposites on the dielectric and mechanical properties
Author(s) -
K. Savitha Unnikrishnan,
T. Sunil Jose,
S. Dinoop lal
Publication year - 2021
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.26057
Subject(s) - materials science , composite material , epoxy , dielectric , flexural strength , ultimate tensile strength , silane , nanocomposite , fiber , glass fiber , composite number , dielectric loss , optoelectronics
Silane coupled E‐glass fiber (SC‐EGF) and E‐glass fiber (EGF) reinforced bismaleimide (BMI)‐epoxy‐hydroxylated BaTiO 3 (BTOH) nanocomposites with 1–5 wt% of BTOH nanofiller were fabricated by hand lay‐up method and compression molded. Surface hydroxylation of synthesized BaTiO 3 nanoparticles was carried out using H 2 O 2 . Both BT and BTOH nanoparticles were characterized by SEM, XRD, and FTIR studies. Among the reinforced nanocomposites, SC‐EGF‐reinforced showed a remarkable increase in mechanical and dielectric properties. The tensile strength of BMI‐epoxy composite increased 1.56 and 3.10 times when loaded with 2 and 3 wt% of BTOH, respectively. Their flexural strength too increased 2.14 and 2.21 times upon 2 and 3 wt% of BTOH loading. BMI‐epoxy‐BTOH nanocomposites with 3 wt% of BTOH showed higher tensile strength, flexural strength, and dielectric strength indicating that it possesses better mechanical and insulating properties and composites with 2 wt% showed higher dielectric constant and lower dielectric loss indicating that this composition could be explored to high dielectric applications.