CAS 69102-90-5 HTPB Hydroxyl-terminated polybutadiene HTPB for propellant, adhesives, sealants, coatings
| Product Name |
|
| CAS No. |
69102-90-5 |
| Appearance |
Liquid/Powder |
| Purity |
≥99%, ≥99.9%, ≥95%, Industrial Grade, Technical Grade (Other purities are also available) |
| Ingredient |
N/A |
| APS |
1-5 µM, 10-53 µM, Nano size (Can be customized), Ask for other available size range |
| Product Code |
NCZ-NRQ-352/26 |
Product Description
HTPB / Hydroxyl-terminated polybutadiene CAS: 69102-90-5
Product details:
Chemical Name: Hydroxyl-terminated polybutadiene
CAS: 69102-90-5
Formula：
Performance properties & Features
HTPB is a liquid remote claw polymer, the new liquid rubber. The properties vary because HTPB is a mixture rather than a pure compound, and it is manufactured to meet customers’ specific requirements. A typical HTPB is R-45M with each end of the chain terminated with a hydroxyl [OH] group. (PS: we can do any versions of HTPB as customers request, and new design the HTPB with a single chain of hydroxyl -OH, Meanwhile, we can do hydrogenation of the HTPB)
It and chain extension agent, crosslinking agent in room temperature or high temperature reaction can generate 3D network structure of curing content. The curing content has excellent mechanical properties, especially good resistance to hydrolysis, acid and alkali resistant, wear resistance, low temperature resistance and excellent electrical insulation.
Polyurethanes prepared from HTPB can be engineered for specific physical properties; polyurethanes may be highly elastic or tough and rigid. Some products include: rigid foam insulation panels; durable elastomeric wheels and tires (used for roller coasters, escalators, skateboards, etc.); automotive suspension bushings; electrical potting compounds; high-performance adhesives; surface coatings and surface sealants; synthetic fibres (e.g., Spandex); carpet underlay; hard-plastic parts (e.g., for electronic instruments).
An important application of HTPB is in solid rocket propellant. It binds the oxidizing agent, fuel and other ingredients into a solid but elastic mass in most composite propellant systems. The cured polyurethane acts as a fuel in such mixtures. For example the propellant as “HTPB/AP/Al=12/68/20”, which means, proportioned by mass, HTPB plus curative 12% (binder and fuel), ammonium perchlorate 68% (oxidizer), and aluminium powder 20% (fuel).
Similar propellants, often referred to as APCP (ammonium perchlorate composite propellant) are used in larger model rockets. A typical APCP produces 2–3 times the specific impulse of the black powder propellant used in most smaller rocket motors.
HTPB is also used as a hybrid rocket fuel.
The performance properties of HTPB as follow:
1. Hydrophobicity
2. Reactive hyroxyl groups
3. Low glass transition temperature
4. Low Color – high clarity viscous liquid
5. Resistance to hydrolysis
6. Low temperature resistance
7. Low moisture permeability
8. Resistance to aqueous acids and bases
9. Strong wear resistance
10. Excellent adhesion to a variety of substrates
11. Electrical insulative properties
Applications
HTPB can be used in :
– Coatings
– Adhesives
– Propellant
– Polyurethane(PU) elastomers
– Binders
– Sealants
– Electrical insulation materials
– Rubber products
– Structural materials in car and planes
– Building materials (waterproof, anti-corrosion, heat insulation)
– Potting and encapsulation
– Polymer Modification
– and so many other kinds of usage.
Packing:
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 |
GRADE I |
GRADE II |
GRADE III |
GRADE IV |
GRADE V |
GRADE VI |
| Appearance |
achromatous or light yellow, no visible impurities |
| Hydroxyl value,（mmol/g） |
0.47-0.53 |
0.54-0.64 |
0.65-0.70 |
0.71-0.80 |
0.81-1.00 |
1.00-1.40 |
| Viscosity(40℃ Pa.s）≤ |
9.5 |
8.5 |
4.0 |
3.5 |
5.0 |
3.0 |
| Peroxide mass fraction, % |
0.04 |
0.04 |
0.05 |
0.05 |
0.10 |
0.10 |
| Moisture,wt% ≤ |
0.05 |
0.05 |
0.05 |
0.05 |
0.10 |
0.10 |
| Volatile Content,% ≤ |
0.5 |
0.5 |
0.65 |
0.65 |
1.0 |
1.0 |
| Molecular weight |
3800-4600 |
3300-4100 |
3000-3600 |
2700-3300 |
2300-3000 |
1600-2400 |
CAS 69102-90-5 HTPB Hydroxyl-terminated polybutadiene HTPB for propellant, adhesives, sealants, coatings is generally immediately available in most volumes. Nanochemazone produces many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural, and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research, and safety (MSDS) information are available, as is a Reference Calculator for converting relevant units of measurement.
Related Information:
Storage Conditions:
Airtight sealed, avoid light, and keep dry at room temperature.
Please get in touch with us for customization and price inquiry
Email: contact@nanochemazone.com
Note: We supply different size ranges of Nano and micron as per the client’s requirements and accept customization in various parameters.
