Abstract
CAPAC-ZDBC, (CAS No. 136-23-2), is a very fast primary or secondary (ultra) accelerator for natural and synthetic rubber. It is also a very rapid accelerator for NR and SBR lattices. Additionally it is used as an antioxidant in adhesive systems.
Identification
Name: Zinc dibutyldithiocarbamate(CAS No. 136-23-2 ),
CAS Registry Number: 136-23-2
EINECS: 205-232-8
Application
CAPAC-ZDBC is a secondary ultra accelerator for general purpose polymers (NR, SBR, IIR and EPDM). It can be used as primary accelerator in some continuous cure applications as well as in latex.
- Furthermore CAPAC-ZDBC is used as an antioxidant in adhesive systems.
- It should be noted that in the application of CAPAC-ZDBC N-nitrosodibutylamine can be formed by the reaction of dibutylamine, a decomposition product, with nitrosating agents (nitrogen oxides).
- CAPAC-ZDBC is regulated for use in articles in contact with food as specified under FDA 21 CFR 175.105, 178.2010, 175.300, 177.1210, 177.2600 and under BfR Recommendation XXI, Categories 1-4 and "Sonderkategorie".
Compounding Information
In NR latex, when used as a primary accelerator 1 phr of CAPAC-ZDBC with 2.5 phr sulfur is a good starting point.
In EPDM CAPAC-ZDBC has the highest solubility of all dithiocarbamates, offering the lowest blooming effect. An acceptable starting point for a low set non-blooming EPDM compound is ZDBC 2.0, TMTD 0.8, DPTT 0.8 and Sulfasan DTDM 2.0 phr. In rubber cured in contact with polyester textiles ZDBC is preferably used over other dithiocarbamates.
Handling Precautions
For detailed information on toxicological properties and handling precautions please refer to the current Material Safety Data Sheet. This information sheet can be downloaded from our web site or requested from the nearest our company and should be consulted before handling this product.
Packing
The regular packing of this product is paper-plastic bag, 25kg/bag, 500kg/pallet and 10 tons for 20" FCL with pallets.
Storage and Shelf Life
It should be stored in dry, cool, ventilated room; Keep away from water, moisture, high temperature and fire. This product has a shelf life of at least 12 months if stored in tightly closed original container at room temperature.
| Properties |
|
|
|
| Item |
Typical Values |
|
|
| |
Powder |
Dust-free Powder |
Granules |
| Appearance |
White Powder( Granules) |
|
|
| Initial Melting Point, ° C Min. |
104.0 |
103.0 |
103.0 |
| Heat Loss, % Max. |
0.40 |
0.40 |
0.40 |
| Zinc Content, % |
13.8~14.8 |
13.5~14.5 |
13.5~14.5 |
| Residue on 150 µ M Sieve, % Max. |
0.10 |
0.10 |
- |
| Residue on 63 µ M Sieve, % Max. |
0.50 |
0.50 |
- |
| Oil Content, % |
- |
1.0~2.0 |
- |
| Particle Size, mm |
- |
- |
1.5-2.5 |
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