HOME  |  ABOUT US  |  PRODUCTS  |  SERVICE CENTRE  |  JOB OPPORTUNITY  |  CONTACT
CHINESE ORIGIN
RUSSIAN ORIGIN
 
 

KNB

1. Product Introduction
KOSYN KNB is a cold emulsion copolymer of acrylonitrile and butadiene. It has excellent resistance to hydrocarbon solvents, vegetable oils, acids, alkalis, and many other liquids and gases. Resistance to abrasion, heat, water, and flexing are also provided by our NBR. KOSYN KNB is suitable for injection molding of rubber products with various shapes, and it can be used with a relatively large amount of plasticizer.
2. Product Application
Packings, Gaskets, Hoses, Rolls, Shoe soles and heels, Other applications requiring oil resistance.
3.Typical Properties for KOSNYN KNB

Grade\Item

KNB
25LM

KNB
25M

KNB
25LH

KNB
25H

KNB
25SH

KNB
35LL

KNB
35L

KNB
35LM

KNB
35M

KNB
35H

KNB
40M

KNB
40H

KNB
0230

KNB
0230L

Bound AN (%) 28 34 41 35
Raw MV (ML 1+4,100.C) 50 60 70 80 100 33 41 50 60 80 60 80 56 42
Specific Gravity 0.96 0.98 1.00 0.98

Compound Properties *1)
Compound MV (ML 1+4,100.C)
Rheometer(160.c, ARC+1。)
ML (lbf . in)
MH (lbf . in)
Ts 1 (Min)
T¨ 50 (Min)
T¨ 90 (Min)


73

14.1
40.4
3.0
4.7
17.0


90

15.7
41.0
2.9
4.3
16.9


101

18.0
42.0
3.3
4.9
16.0


114

21.0
43.5
3.0
4.7
15.6


140

23.5
45.5
3.0
4.8
16.5


54

9.7
38.9
3.8
6.0
16.9


66

10.4
40.2
3.1
5.2
16.3


78

11.9
41.4
2.2
4.2
15.3


90

15.5
44.0
2.0
4.2
16.3


110

16.5
46.3
2.2
4.0
16.1


92

11.5
41.9
3.2
6.6
19.6


113

13.9
45.1
2.7
6.2
20.1


60

11.6
43.2
2.3
3.8
12.9


64

10.9
42.7
2.6
4.0
12.4

Cured *2)
300% Modulus (kgf/cm2)
Tensile Strength(kgf/cm2)
Elongation (%)


140
275
510

155
285
480

168
285
440

175
285
400

185
290
310

132
300
570


141
310
550


148
313
530

153
327
520

168
334
500

160
345
560

170
360
540


160
300
500


150
295 510

Hardness (Shore-A)
ASTM#1 Oil lmmersion Chinge*3)
300% Modulus (%)
Tensile strength (%)
Elongation (%)
Hardness (Change %)
Volume (Change %)

73

23
-7
-20 -4
2
73

22
-8
-20 -4
2
73

24
-8
-23
-4
2
73

24
-10
-18
-3
3
73

25
-13
-21
-3
1
74

42
-8
-29
0
-1
74

35
-13
-28
0
0
74

39
-6
-23
0
0
74

40
-6
-21
-1
0
74

43
-4
-20
0
0
75

45
-1
-26
4
0
75

47
-1
-29
4
-1
74

40
-3
-25
-1
0
74

38
-3
-24
-1
0
1) NBR 100,ZnO 3,S/A 1, HAF Black(IRB#7)40,Accelerator TBBS 0.7, Sulfur 1.5
2) 150.c x 40Min. Press cured
3) 100.c x 70hrs.Change Rate

2009-2012 BLUE RIBBON GROUP CO.,LTD All Rights Reserved