• CAS 25265-19-4 HTBN Liquid Rubber Hydroxyl-Terminated Nitrile Rubber Oil-Resistant Elastomer High-Temperature Sealing Material Solutions

CAS 25265-19-4 HTBN Liquid Rubber Hydroxyl-Terminated Nitrile Rubber Oil-Resistant Elastomer High-Temperature Sealing Material Solutions

High-Performance HTBN Liquid Rubber – Innovative Elastomer Solutions for Multiple Industries
Specializes in the production of Hydroxyl-Terminated Polybutadiene Acrylonitrile Liquid Rubber (HTBN/Nitrile Hydroxyl).

Product Description

High-Performance HTBN Liquid Rubber – Innovative Elastomer Solutions for Multiple Industries
Specializes in the production of Hydroxyl-Terminated Polybutadiene Acrylonitrile Liquid Synthetic Rubber (HTBN/Nitrile Hydroxyl). As a leading global supplier of telechelic prepolymers, we are committed to providing specialty raw materials for oil-resistant elastomers and high-temperature sealing materials, meeting the demands of extreme operating conditions.

 

Product Features

 

1. Exceptional Oil Resistance: Acrylonitrile molecular chains (adjustable nitrile content: 10%-20%) enable HTBN to achieve 50% improvement in resistance to fuel, lubricants, and chemical solvents, ideal for turbocharger hoses, crankcase ventilation systems, and other harsh environments.
2. Broad Temperature Stability: Maintains elasticity from -40°C to 180°C, overcoming the high-temperature aging limitations of conventional rubbers. Suitable for automotive engine seals and ultra-low-temperature cable insulation layers.
3. Strong Interfacial Bonding: Hydroxyl terminal groups (hydroxyl value: 0.4-0.7 mmol/g) enable chemical bonding with polyurethane/epoxy resins. Post-curing, shear strength exceeds 30 MPa, and peel strength surpasses 20 N/cm, significantly enhancing interlayer adhesion in composite materials.
4. Liquid Processing Advantages: Low viscosity (15-30 Pa·s at 40°C) supports precision molding via casting/immersion, suitable for efficient processes like electrical encapsulation and corrosion-resistant coating spraying.
5. Eco-Friendly Plasticizing: Replaces phthalate plasticizers, compliant with REACH/ROHS certifications. Used to produce V0 flame-retardant electronic potting compounds and food-contact-grade products.

Industry Applications

 

Adhesives & Sealing Solutions


● Automotive/Aerospace Oil-Resistant Polyurethane Structural Adhesives: Reacts with polyisocyanate prepolymers to form island-sea structure block copolymers, offering resistance to acidic blow-by gases and thermal oxidation.
● Electronic Potting Compounds (V0 Flame-Retardant Formulation): Modified with epoxy resins for impact strength >15 J/cm², suitable for high-frequency transformers and flexible circuit board protection.
● Interlayer Adhesion Reinforcement for Composites: Enhances peel strength by 40% in carbon fiber/metal hybrid material bonding.
Electrical Insulation & High-Temperature Sealing Solutions
● High-Voltage Cable Accessory Casting Materials: Withstands continuous operation at 180°C, replacing traditional HT-ACM elastomers to reduce dynamic fatigue in turbocharger hoses.
● 900°C-Resistant Asbestos-Free Gaskets: Combined with ceramic fibers for high-temperature sealing in engine cylinder heads and exhaust pipes.

 

Industrial Material Modification 

 

● Epoxy Resin Toughening Agent (300% Impact Strength Improvement): Forms multiphase networks via carboxyl group reactions, extending service life of chemical pipeline linings. It can also be used as Polyurethane adhesive raw material.
● Corrosion-Resistant Rubber Linings: Acid-resistant coatings for petrochemical storage tanks and marine protection.

 

Why Choose Ruifeng Polymer HTBN Liquid Rubber 

 

Precision Molecular Design: Customizable nitrile content (10%-20%), hydroxyl value (0.4-0.7 mmol/g), and molecular weight (2000-4000) to meet diverse hardness and polarity requirements.
Military-Grade Quality Control: Compliant with GJB1327-91 standards, with number-average molecular weight fluctuation <±3%, moisture and peroxide content ≤0.05%.
Global Supply Chain: Available in 180kg/50kg moisture-proof drums, supporting rapid sample delivery.

 

Our Advantages

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Advanced Products & Technology Expertise
We specialize in high-performance polyurethanes and advanced new materials, driven by proprietary formulations and continuous process innovation to deliver superior value.
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Rigorous Quality & Certification System
All products comply with international standards and pass multi-stage inspections, ensuring reliable quality and consistent performance.
 
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Continuous R&D and Innovation
Our dedicated R&D centers collaborate with leading institutes to develop next-generation materials.
 
 
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 Safety & Environmental
We adhere to global EHS standards and sustainable manufacturing practices, minimizing environmental impact and ensuring workplace safety.

 

Our Services

 
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If you would like more information about this product, please feel free to contact us.

Product Consistency:
Stable quality and reliable performance in every batch.

Stable Supply:
Own factory ensures long-term and steady supply.

Free Samples:
Free samples available for testing and evaluation.

Global Logistics:
Experienced in international shipping and hazardous export.

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