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Chemical Name: Carboxyl-terminated polybutadiene
Synonyms: CTPB
CAS: 586976-24-1
Note: We can research and develop any new version of CTPB according to the special demand of our clients.
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- CTPB Carboxyl-Terminated Polybutadiene(CTPB) CAS 586976-24-1
Product Description
CTPB is a liquid polybutadiene rubber with carboxyl groups at both ends of the molecule, which has excellent cold resistance and elasticity.
Application
The CTPB mainly used as a toughening agent for epoxy resin adhesives and sealants, it can also be used separately for manufacturing sealing materials, adhesives, coatings, elastic fibers, and artificial materials Leather, rubber modifiers, etc.
As propellant
Packing & Storage
Packed in 50kg/drum, 170kg/drum, The storage period is 1 year.
Safety instructions:
Storage should be at cool, dry and ventilate. The best condition is among -20 ~ 38℃. Shelf life of 12 months, if expire, still used if up to standard through retest. When transportation should avoid rain, sunlight. Don’t mix with strong oxidizer.
Specification
| ITEM |
CTPB-1 |
CTPB-2 |
CTPB-3 |
CTPB-4 |
CTPB-5 |
| Carboxyl value(mmol/g) |
0.47 - 0.53 |
0.54 - 0.64 |
0.65 - 0.70 |
0.71 - 0.80 |
0.81 - 1.00 |
| Viscosity (40℃,Pa.S) |
≤9.5 |
≤8.5 |
≤4.0 |
≤3.5 |
≤3.0 |
| Moisture, wt% ≤ |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
| Volatile Content, % ≤ |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
| Molecular weight |
3800 - 4600 |
3300 - 4100 |
3000 - 3600 |
2700 - 3300 |
2400 - 2800 |
|
* In addition: We can research and develop any new version of CTPB according to the special demand of our clients． |
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