D-2000 polyetheramine (MW ~2000) and 1,4-butanediol chain extender for polyurea coatings, TPU, CASE, and elastomers.
D-2000 is a bifunctional polyetheramine (amine-terminated PPG) with molecular weight approximately 2000. Primary use is in spray polyurea coatings and linings where fast reactivity and flexibility are required. Also used as a co-curing agent in epoxy systems to improve flexibility and impact resistance, and as a soft-segment building block in polyurea elastomers.
| Property | Typical Value |
|---|---|
| Type | Amine-terminated polyether (PPG backbone) |
| Functionality | Bifunctional (f=2) |
| Molecular weight | ~2000 g/mol |
| Amine equivalent weight | ~1000 g/eq |
| Appearance | Clear to pale yellow liquid |
| TSCA Status | Listed |
1,4-Butanediol is a short-chain diol used as a chain extender in thermoplastic polyurethane (TPU), polyurethane and polyurea elastomers, and CASE systems. Reacts with isocyanate to build hard segment content, increasing modulus, hardness, and heat resistance.
| Property | Typical Value |
|---|---|
| CAS Number | 110-63-4 |
| Molecular weight | 90.12 g/mol |
| Functionality | Bifunctional diol (f=2) |
| Appearance | Clear, colorless liquid |
| Purity | ≥99.5% |
| TSCA Status | Listed |
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