Description

Polybutadiene CAS NO 31567-90-5 is a synthetic polymer of butadiene, a key elastomer in the rubber industry. Its unique molecular structure, characterized by a high degree of unsaturation, provides exceptional resilience, low-temperature flexibility, and high abrasion resistance. This makes it an indispensable raw material for manufacturers in the tire, automotive parts, and polymer modification sectors seeking to enhance product durability and performance.

Application

• Tire Manufacturing: A primary component in tire treads and sidewalls, improving wear resistance, traction, and reducing rolling resistance.
• High-Impact Polystyrene (HIPS): Used as a toughening agent to enhance the impact strength and durability of polystyrene plastics.
• Automotive Components: Employed in the production of hoses, belts, gaskets, and other molded rubber goods requiring flexibility and strength.
• Golf Ball Cores: Provides the high resilience and energy return needed in the solid cores of high-performance golf balls.
• Adhesives and Sealants: Serves as a base polymer in formulations requiring strong, flexible bonds and good chemical resistance.
• Polymer Modification: Blended with other polymers like polyethylene or polypropylene to improve their impact properties and processability.

Basic Information

Product Name	Polybutadiene
CAS No.	31567-90-5
Molecular Formula	(C4H6)n
Molecular Weight	Variable (Polymer)
Synonyms	Polybutadiene Rubber (PBR); Butadiene Rubber (BR); 1,3-Butadiene homopolymer; cis-Polybutadiene; High-cis Polybutadiene; Low-cis Polybutadiene; Buna CB; SKD Rubber
EINECS	250-691-0

Quality Control

Our Polybutadiene is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as microstructure (cis/trans/vinyl content), Mooney viscosity, and stabilizer content. Our quality commitment aligns with industry standards for polymer production, ensuring reliability for your critical formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from heat sources and incompatible materials. Due to its easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation of properties. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow bale or crumb
Mooney Viscosity (ML 1+4 @ 100°C)	30 - 55 (Grade dependent)
cis-1,4 Content	> 96% (High-cis grade)
Volatile Matter	≤ 0.75%
Ash Content	≤ 0.50%
Stabilizer Content (e.g., Antioxidant)	0.1 - 0.8%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.