Influences of inorganic fillers on curing reactions of epoxy resins initiated with a boron trifluoride amine complex

Authors
Akatsuka, M Takezawa, Y Amagi, S
Citation
M. Akatsuka et al., Influences of inorganic fillers on curing reactions of epoxy resins initiated with a boron trifluoride amine complex, POLYMER, 42(7), 2001, pp. 3003-3007
Citations number
1
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
42
Issue
7
Year of publication
2001
Pages
3003 - 3007
Database
ISI
SICI code
0032-3861(200103)42:7<3003:IOIFOC>2.0.ZU;2-9
Abstract
Inorganic fillers are widely used for epoxy resins to improve mechanical an d thermal properties. However, inorganic fillers may unexpectedly affect th e curing reactions of such epoxy resins. In our present study, influences o f inorganic fillers on the curing reactions of phenol novolac epoxy resin ( EPN) initiated with boron trifluoride ethylamine complex (BF(3)MEA) are det ailed. The gel times of epoxy resins containing alumina (Al2O3) fillers wer e longer than those of corresponding unfilled epoxy resins, indicating that Al2O3 fillers delayed the curing reactions of epoxy resins. Mechanisms wer e proposed and influences of aluminum hydroxide (Al(OH)(3)), silica (SiO2), and aluminum fluoride (AlF3) fillers were also described. (C) 2001 Elsevie r Science Ltd. All rights reserved.