Products
Liquid Rubber – Carboxyl Terminated Nitrile Butadiene Rubber (CTBN)
Properties and Uses
CTBN is liquid nitrile rubber with carboxyl functional groups at both ends of the molecular chain, and the terminal carboxyl group can react with epoxy resin. It is mainly used for toughening epoxy resin. It can be customized according to customers' requirements.
Technical specifications
|
Item |
CTBN-1 |
CTBN-2 |
CTBN-3 |
CTBN-4 |
CTBN-5 |
|
Acrylonitrile content, % |
8.0-12.0 |
8.0-12.0 |
18.0-22.0 |
18.0-22.0 |
24.0-28.0 |
|
Carboxylic acid value, mmol/g |
0.45-0.55 |
0.55-0.65 |
0.55-0.65 |
0.65-0.75 |
0.6-0.7 |
|
Molecular weight |
3600-4200 |
3000-3600 |
3000-3600 |
2500-3000 |
2300-3300 |
|
Viscosity (27℃), Pa-s |
≤180 |
≤150 |
≤200 |
≤100 |
≤550 |
|
Volatile matter, % |
≤1.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤1.0 |
1. Can you describe your company’s quality management workflow?
We implement full‑process quality management: incoming raw‑material inspection, in‑line production monitoring, finished‑product testing before release, batch record retention for traceability, plus after‑sales quality follow‑up and corrective actions for non‑conformities.
2. Are your company’s products subject to full traceability? If yes, please specify the implementation mechanism for traceability.
Yes. Each batch is assigned a unique batch number. We keep complete records covering raw‑material batches, production parameters, inspection reports and delivery documents, enabling full‑chain traceability.
