Chemistry Reference
In-Depth Information
Table 2.9 Curing parameters of the cured HAPAE epoxy/polyamide based
on rosin at different temperatures
Temp. 60°C
Temp. 50°C
Temp. 40°C
Theoretical
mixing
ratio
Type of
hardener
t
max
(min)
T
max
(°C)
t
max
(min)
T
max
(°C)
t
max
(min)
T
max
(°C)
155
75
183
63
215
56
2
APATA
175
67
203
60
241
54
4
APAPA
140
71
170
65
190
56.3
1.1
MPATA
165
70
195
58
226
57
1.6
MPAPA
23
80
28
67
46
52
2.2
AA/DAKTA
30
79
41
65
54
59
2.7
AA/DAKPA
32
76
57
59
71
55
1.56
MA/DAKTA
42
74
60
58
77
53
1.7
MA/DAKPA
The curing exotherms of the epoxy resins based on condensed rosin acid with FA
at low temperature, with polyamide based on rosin, were obtained by plotting the
curing temperature as a function of time at different temperatures between 40 and
60
o
C [37]. The values of
T
max
and t
max
for all the cured resins with theoretical mixing
ratios at temperatures of 40, 50 and 60
o
C were obtained from the plots and listed
in
Table 2.10
.
