Optimization of glass transition temperature and pot life of epoxy blends using response surface methodology (RSM)

Ramli, Junid and Siregar, J. P. and Nor Azam, Endot and Jeefferie, Abd Razak and Wilkinson, Arthur N. (2021) Optimization of glass transition temperature and pot life of epoxy blends using response surface methodology (RSM). Polymers, 13 (19). pp. 1-18. ISSN 2073-4360. (Published)

[img]
Preview
Pdf
Optimization of glass transition temperature and pot life.pdf

Download (4MB) | Preview

Abstract

The aim of this work was to improve the processability of triglycidyl-p-aminophenol (TGPAP) epoxy resin. To achieve this improvement, a diluent, the diglycidyl ether of bisphenol F (DGEBF or BPF), was added to TGPAP, and the blended epoxy was then cured with 4, 4′-diaminodiphenyl sulfones (DDS). A response surface methodology (RSM) was used, with the target response being to achieve a blended resin with a high glass transition temperature (Tg) and maximum pot life (or processing window, PW). Characterization through dynamic mechanical thermal analysis (DMTA) and using a rheometer indicated that the optimum formulation was obtained at 55.6 wt.% of BPF and a stoichiometric ratio of 0.60. Both values were predicted to give Tg at 180 °C and a processing window of up to 136.1 min. The predicted values were verified, with the obtained Tg and processing window (PW) being 181.2 ± 0.8 °C and 140 min, respectively, which is close to the values predicted using the RSM.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Epoxy blends; Response surface methodology; Polymer; Crosslinking; Pot life; Glass transition temperature; Central composite design; Optimization
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Faculty/Division: College of Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 09 Nov 2021 07:32
Last Modified: 09 Nov 2021 07:32
URI: http://umpir.ump.edu.my/id/eprint/32540
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item