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  Medical Dental Grade TPI Granules, Synthetic Gutta-Percha, TransIsoprene Rubber, Trans PolyIsoprene, TPI, Trans-l,4-PolyIsoprene Medical Dental Grade TPI Granules, Synthetic Gutta-Percha, Trans PolyIsoprene, TPI, Trans Isoprene Rubber, Trans-1,4-PolyIsoprene China Largest Manufacturer Of Meteorological Balloons China Largest Manufacturer of Meteorological Balloons  

 
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Rimpex Rubber introduces Kumho SBR, Styrene Butadiene Rubber.

Item Grade
1500
1500S
1502LL
1502
1507L
1507
1507H
1712L
1712C
1712
1712H
1721
1724
1778K
Bound Styrene(%)
23.5
40.0
23.5
Extender Oil
Type
-
Aromatic
Naphthenic
PHR
-
37.5
50.0
37.5
Raw MV
(ML1+4, 100℃)
52
52
44
52
30
35
40
35
46
49
53
54
53*7)
46
Stabilizer
Staining
Non-staining
Staining
Non-Staining
Emulsifier
RosinSoap
Mixed Soap of Rosin Acid and Fatty Acid
Coagulant
Salt-Acid
Specific Gravity
0.93
0.93
0.94
0.94
0.94
0.94
0.94
0.95
0.95
0.95
0.95
0.97
0.98
0.92
Compounded Properties
*1)
2*)
3*)
2*)
Compound MV
(ML1+4, 100℃)
82
81
75
80
60
64
71
52
59
63
65
68
60
57
Rheometer
(160℃, ARC±1)
ML(1bf.in)
15.1
15.6
14.3
15.4
11.7
12.3
12.8
11.1
12.3
13.5
13.6
12.7
12.7
13.5
MH(1bf.in)
49.8
49.2
49.6
51.7
47.6
47.9
47.6
34.7
35.6
37.0
37.4
35.5
35.1
36.0
ts1(min)
4.8
5.1
4.4
4.5
4.7
4.2
4.7
5.9
6.3
5.8
6.1
6.5
6.7
5.7
t'50(min)
12.8
11.3
10.5
9.5
11.6
10.6
11.6
10.2
10.6
9.9
10.7
11.3
11.5
11.3
t'90(min)
22.0
20.1
19.5
18.0
20.6
19.5
20.6
17.6
18.4
17.2
18.3
19.0
19.5
20.0
Vulcanization Properties
4*)
300% Modulus
(kgf/cm2)
167
161
185
206
167
172
183
102
104
108
110
108
107
129
Tensile Strength
(kgf/cm2)
300
305
293
300
279
284
290
233
232
243
243
240
232
221
Elongation(%)
500
510
430
410
470
470
460
590
570
580
570
600
570
460
Hardness(Shore-A)
72
72
72
72
71
71
71
63
63
63
63
65
66
60
Tear Resistance
(B-Type, kg/cm)
54
54
50
52
50
50
51
41
42
42
43
44
44
45
Compression Set
(100℃×70Hrs, 25%def., %)
51
52
47
49
50
51
52
53
51
50
49
50
50
53
Rebound(ASTM, %)
55
54
55
54
54
55
55
44
44
45
46
30
24
49
Flex Crack Resistance *5)
3×103
4×103
10×103
9×103
10×103
Abrasion Loss *6)
0.20
0.20
0.20
0.20
0.18
0.19
0.20
0.14
0.15
0.14
0.17
0.19
0.19
0.15
*1) SBR 100, ZnO 3, S/A 1, HAF Black (IRB#7) 50, Accelerator TBBS 1.00, Sulfur 1.75, Total : 156.75
*2) SBR 137.5, ZnO 3, S/A 1, HAF Black (IRB#7) 68.75, Accelerator TBBS 1.38, Sulfur 1.75, Total : 213.38
*3) SBR 150, ZnO 3, S/A 1, HAF Black (IRB#7) 75, Accelerator TBBS 1.50, Sulfur 1.75, Total : 232.25
*4) 145°C*35min, Press Vulcanization
*5) De Mattia Flexometer : Cut Growth 2mm→15mm, Flexes
*6) Akron Type Tester, cc/1000rev.
*7) Unmilled




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