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Application Recipe Property of the Reclaimed Fluorine Rubber:
Raw Material |
Recipe No. |
1# |
2# |
3# |
FE2604 |
100.00 |
100.00 |
100.00 |
Carnauba wax |
1.00 |
1.00 |
1.00 |
Ca(OH)_2 |
6.00 |
6.00 |
6.00 |
MgO150# |
3.00 |
3.00 |
3.00 |
AF--50 |
3.00 |
3.00 |
3.00 |
FB--52 |
1.30 |
1.30 |
1.30 |
Reclaimed Fluorine Rubber |
0 |
20.00 |
30.00 |
Total |
114.3 |
134.30 |
144.3 |
Vulcameter 180 ℃
ML |
1.12
|
1.28
|
1.41
|
MH |
7.80 |
6.84 |
6.82 |
T10 |
74 |
80 |
83 |
T50 |
101 |
116 |
121 |
T90 |
178 |
208 |
212 |
Vulcanization Condition
First curing 180 ℃ × 6 min
Post curing 230 ℃ ×24h
Hardness |
52.6
|
55.3
|
56.3
|
Strength |
8.15 |
11.02 |
10.26 |
Elongation |
436.33 |
361.06 |
375.28 |
M100 Set stretching stress |
1.37 |
1.52 |
1.64 |
Tearing strength |
8.55/16.46/16.2 |
8.11/19.18/17.63 |
20.80/21.30/19.78 |
Density |
1.8631 |
1.8648 |
1.8629 |
Hot air aging 230 ℃ × 70h
HS |
58 +6.4
|
58 +2.7
|
60.5+4.2
|
TB |
8.24 -0.91 |
10.94-0.8 |
12.22+1.96 |
EB |
337.13 -22.7 |
363.5+2.42 |
391.9+16.62 |
M100 |
1.26 |
1.46 |
1.60 |
Data Analysis and Conclu sion:
Seeing from the above test data, the vulcanization speed of the compound rubber added with 20 or 30 parts by weight of reclaimed fluorine rubber is lower than that of the compound rubber without adding any reclaimed fluorine rubber, but it is not obvious, just adjusting the vulcanizing system a little is fine. The physical property and the hot air aging property are very close to each other.
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