OUR PRODUCTS
ZEONET® PB
Adhesion improver for FKM
In industrial utilization of FKM, combination of FKM and NBR may be required though FKM is difficult to adhere to NBR.
In this case, ZEONET® PB exhibits remarkable improvement of adhesion between FKM and NBR under their cross-linking process. In this procedure, ZEONET® PB is applied not to FKM but to NBR for its curing system.
ZEONET® PB is compatible with any type of cross-linking system for FKM, such as poly-ol, amine or litharge system. For NBR cure, both curing agent of sulfur and peroxide are applicable to this coupling method by ZEONET® PB.
ZEONET® PB is also effective for adhesion of FKM and ECO.
Adhesion test of FKM and PVC modified NBR
| FKM | |
|---|---|
| Viton® VTR9160 | 100 |
| Bisphenol F | Originally contained in Viton® VTR9160 |
| MgO | 6 |
| Ca(OH)2 | 6 |
| Carbon black: N762 | 15 |
| PVC modified NBR | ||
|---|---|---|
| Sulfur cure | Peroxide cure | |
| Nipol® DN508 | 100 | 100 |
| ZnO#1 | 5 | 5 |
| Stearic acid | 1 | 1 |
| Carbon black: N990 | 30 | 30 |
| Nipsil VN3 | 15 | 15 |
| Thiokol TP95 | 15 | 15 |
| A.O.224 | 2 | 2 |
| Wax | 2 | 2 |
| Sulfur | 1.5 | - |
| TMTD |
0.5 | - |
| MBTS | 1.5 | - |
| Percumil D-40 | - | 2 |
Adhesion test result
| NBR cure system | Sulfur | Peroxide | ||
|---|---|---|---|---|
| ZEONET® PB for NBR cure | 0 | 3PHR | 0 | 3PHR |
| Failure mode at peeling test | A.F. | M.B. | A.F. | M.B. |
M.B.: Material Break
Effect of ZEONET® PB on mechanical properties of cured NBR
| NBR cure system | Sulfur | Peroxide | |||
|---|---|---|---|---|---|
| ZEONET® PB for NBR cure | 0 | 3PHR | 0 | 3PHR | |
| Mooney Scorch @125 degrees C t5 (min.) |
16.2 | 4.8 | 11.4 | 9.7 | |
| Tensile properties |
Tensile Strength (MPa) | 15.6 | 17.2 | 16.4 | 17.3 |
| Elongation (%) | 420 | 190 | 280 | 470 | |
| 100% Modulus (MPa) | 3.3 | 8.2 | 4.2 | 3.5 | |
| Hardness (Shore A) | 71 | 77 | 37 | 44 | |
| Compression Set (%) 70hr.s at 100 degrees C |
47 | 67 | 37 | 44 | |
- This product is developed for industrial purpose. Before using the product for food, medical care, or other special applications, the user should confirm the necessary safety measures and precautions specific uses.
- The user must comply with the instructions provided in the Material Safety Data Sheet (MSDS).
- Information contained in this publication is accurate to the best knowledge and belief of Tokyo Zairyo Co., Ltd. and is subject to change as new information available. This document is provided for informational purpose only, and does not give any warranties or guarantees regarding the performance or quality of the product.