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Hydroxyl-terminated Polybutadiene/HTPB
CAS No.:69102-90-5
English name : Hydroxyl-terminated Polybutadiene
English abbreviation: HTPB
1. Physical and chemical properties:
1.1 Product brief: HTPB is a liquid teleclaw polymer and a type of rubbers. It reacts with chain extender, cross-linking agent or curative at room temperature or high temperature to form the thermosetting polymer with three-dimensional network structure This thermosetting polymer has excellent properties such as, good mechanical properties, hydrolysis resistance, acid and alkali resistance, wear resistance, cold temperature tolerance and electrical insulating.
1.2 Structure formula:
2. Technique Indexes:
|
Item |
Index |
|||||||
|
HTPB-4200 |
HTPB-4200D |
HTPB-3700 |
HTPB-3300 |
HTPB-3000 |
HTPB-2500 |
HTPB-2000 |
HTPB-1500 |
|
|
Hydroxyl value, mmol/g |
0.47-0.53 |
0.54-0.64 |
0.65-0.70 |
0.71-0.80 |
0.81-1.20 |
1.21-1.60 |
1.61-2.00 |
|
|
Moisture, % |
≤0.050 |
≤0.100 |
||||||
|
H2O2 content, % |
≤0.040 |
≤0.050 |
≤0.080 |
≤0.100 |
≤0.150 |
|||
|
Viscosity(40℃), Pa·s |
≤9.5 |
≤8.5 |
≤4.0 |
≤3.5 |
≤4.0 |
≤3.0 |
≤3.5(30℃) |
|
|
Mn(×103)(VPO) |
3.80-4.60 |
4.00-4.60 |
3.30-4.10 |
3.00-3.60 |
2.70-3.30 |
2.00-3.00 |
1.30-2.50 |
1.00-2.00 |
|
Volatilization loss, % |
≤0.5 |
≤.0.65 |
≤.0.75 |
≤.0.90 |
||||
|
Appearance |
Colorless or light yellow transparent liquid, no visible impurities |
|||||||
3. Application: It can be used as a special purpose adhesive, a plasticizer for various solid rubbers, a thermosetting resin modifier, etc. It can be used to prepare HTPB type polyurethane elastomers, electronic and electrical insulation materials, special coatings, sealing materials, and various industrial rubber products.
4. Package; 10L,50L,200L white PE plastic bucket with mouth diameter no less than 100 mm.
5. Storage：Stored at cool, dry and ventilate place. The best storage condition is between -20～38℃. Shelf life: 12 months. After the shelf life expires, the samples should be re-sampled and re-inspected according to the technical specifications in Part 2, and they can still be used after passing the test.
6. Transportation: Avoid rain, moisture and sun exposure. Don’t mix-transport with strong oxidizer.
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