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desirable to consider this parameter. It was very important to use glass bottles of the
same volume in all measurements in order to achieve repeatability of the measurements
and conduct a legitimate comparative study. We have selected some of these plots,
as representative samples, at 40 °C. The curing exotherms for curing of the glycidyl
ether of MA/DAKAE resin with all the prepared polyamides used as curing agents
at theoretical mixing ratios at a temperature of 60 °C were plotted in
Figure 2.2
. It
was observed that the curing reaction exotherms have maximum curing temperatures
(T
max
) at maximum curing times (t
max
).
83
78
73
68
APATA
APAPA
MPATA
MPAPA
AA/DAKTA
AA/DAKPA
MA/DAKTA
MA/DAKPA
63
58
0
50
100
Tim, min
150
200
Figure 2.2 Curing exotherms of MA/DAKAE epoxy and polyamide based on rosin
