Online Consultation 
HTPB (Hydroxyl-Terminated Polybutadiene(HTPB) CAS No. 69102-90-5 )
Chemical Name: Hydroxyl-terminated polybutadiene
Code: HTPB
CAS No. 69102-90-5
Read More
English
Online Service
Mobile/Wechat/Telegram: +86-18321679576
WhatsApp:+86-13248126998
Email:young@theoremchem.com
Email:info@further-chem.com
Monohydroxy Liquid Polybutadiene(LPBOH) CAS No. 63231-65-2 LPBOH
Monohydroxy liquid polybutadiene
LPBOH
Chemical Name: Monohydroxy liquid polybutadiene
Aliases: hydroxylated liquid polybutadiene.
Code: LPBOH
CAS No. 63231-65-2
Product Description
Monohydroxy Liquid Polybutadiene (LPBOH) is a monofunctional hydroxyl-terminated low-molecular-weight polybutadiene, classified as a monofunctional reactive liquid rubber. It is a water-white to pale yellow transparent viscous liquid at room temperature.
Structure: One end of the molecular chain bears a hydroxyl group (–OH) and the other end is an inert terminal group; the main chain contains a large number of active double bonds (1,2-vinyl / 1,4-cis/trans).
Glass Transition Temperature (Tg): -70°C～-50°C (excellent low-temperature flexibility)
Solubility: Soluble in aromatic and cycloaliphatic hydrocarbons; excellent compatibility with LPB, LSBR, HTPB, epoxy resins, and acrylic resins.
Product properties & Features
1. Monofunctional Dual Curing: Dual reactive sites (hydroxyl + double bond) enable stepwise curing with isocyanates (via hydroxyl) and peroxides/sulfur (via double bond), allowing precise control of crosslink density.
2. Low Viscosity & Easy Processability: Lower viscosity than HTPB, offering good fluidity and wetting ability, suitable for casting, potting, and thin-film coating.
3. High Hydrophobicity & Electrical Insulation: Non-polar main chain provides excellent hydrolysis resistance, acid/alkali resistance, and electrical insulation with low dielectric loss.
4. Non-Migrating Toughening: Double bonds participate in crosslinking, delivering permanent toughening without bleeding, improving substrate impact resistance and fatigue resistance.
Applications
Electronic Potting & Insulation Coatings: Potting for high-voltage components, PCBs, and sensors, providing moisture resistance, temperature resistance, and insulation.
Polyurethane Modification: Used as a chain terminator / soft segment in polyurethanes to adjust hardness and low-temperature flexibility.
Adhesives & Sealants: Automotive and construction sealants, enhancing adhesion, weather resistance, and vibration resistance.
Rubber Plasticization & Reinforcement: Reactive plasticizer for solid rubbers (SBR/BR/EPDM), reducing viscosity and improving abrasion resistance and wet skid resistance.
Specialty Coatings: Anti-corrosion, waterproof, and damping coatings, offering toughening, crack resistance, and aging resistance
Packing & Storage
50kg/plastic drum or 180kg/metal drum packaging.
Storage should be cool, dry and ventilated. The shelf life is 12 months, after the expiration of the re-inspection can still be used.
Avoid rain and sun during transportation. Do not mix with strong oxidants.
Technical Index
| Item | LPBOH-1 | LPBOH-2 | LPBOH-3 | LPBOH-4 |
| Molecular weight | 2500-3500 | 2500-3500 | 4500-5500 | 4500-5500 |
| Vinyl content(%) | 60-70 | 25-35 | 60-70 | 25-35 |
| Viscosity (45℃/113°F, Pa·s) | ≤20 | ≤10 | ≤40 | ≤20 |
| Volatile(%) | ≤0.50 | ≤0.50 | ≤0.50 | ≤0.50 |
| Appearance | Light yellow transparent viscous liquid | |||
* NOTE: We can research and develop any new versions of LPB-OH according to the special demand of our customers.
Get in Touch
Whether is a product enquiry or technical help, please send messager here,
our team will respond within 24-48 hours
-
First Name
-
Last Name
-
Phone Number
-
E-mail Adress *
-
You Message Descriptions
-
By submitting this form, you consent to the storage of your data and your interests in order to answer your enquiry. Further
information on data processing, your rights and revocation can be found in our privacy policy.
