Question

If the resin is cured at 80°C for 8 hours, calculate its glass transition temperature using the Di Benedetto Equation. Assume the Di Benedetto constant (A) for this resin system is 0.4. T(°C) 100 iso-conversional curves 0.93 Tg? 80 0.91 0.9 60 0.82 40 20 0 -20 Tge -40 0.57 gelation vitrification 0.43 0.13 (Degree of cure=0.05) 0.05 -60 0.0 1.5 3.0 4.5 6.0 7.5 log [time(sec)] ? ?. 103°C OB. 61°C ? C. 80°C ? D. 93°C OE. -38°C

          If the resin is cured at 80°C for 8 hours, calculate its glass transition temperature using the Di Benedetto Equation. Assume the Di Benedetto constant (A) for this resin system is 0.4.

T(°C)
100
iso-conversional curves
0.93
Tg?
80
0.91
0.9
60
0.82
40
20
0
-20
Tge
-40
0.57
gelation
vitrification
0.43
0.13
(Degree of cure=0.05)
0.05
-60
0.0
1.5
3.0
4.5
6.0
7.5
log [time(sec)]
? ?. 103°C
OB. 61°C
? C. 80°C
? D. 93°C
OE. -38°C

If the resin is cured at 80°C for 8 hours, calculate its glass transition temperature using the Di Benedetto Equation. Assume the Di Benedetto constant (A) for this resin system is 0.4.

T(°C)
100
iso-conversional curves
0.93
Tg?
80
0.91
0.9
60
0.82
40
20
0
-20
Tge
-40
0.57
gelation
vitrification
0.43
0.13
(Degree of cure=0.05)
0.05
-60
0.0
1.5
3.0
4.5
6.0
7.5
log [time(sec)]
? ?. 103°C
OB. 61°C
? C. 80°C
? D. 93°C
OE. -38°C

Added by Dana A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Anand Jangid

02/06/2024

Step 1

4 - Cure temperature (Tc) = 80°C - Cure time (t) = 8 hours = 28,800 seconds Show more…

Show all steps

Thanks for your feedback!

If the resin is cured at 80°C for 8 hours, calculate its glass transition temperature using the Di Benedetto Equation. Assume the Di Benedetto constant (λ) for this resin system is 0.4. Tg = [IIIE(SEC)] A. 103°C B. 61°C C. 80°C D. 93°C E. -38°C iso-conversional curves gelation vitrification 100 1 0.93 80 Tg 0.91 0.9 60 0.82 40 0.57 20 0.43 0 -20 0.13 Tgo -40 (Degree of cure=0.05) -60 0 1.5 3.0 4.5 log[time(sec)] 6.0 7.5 A. 103°C B. 10°C C. 80°C D. 93°C E. -35°C