Description

Polybutadiene Diacrylate is a specialized oligomer featuring a polybutadiene backbone with terminal acrylate functional groups, offering a unique combination of flexibility and reactivity. This compound is valued for its ability to impart high impact resistance, low-temperature flexibility, and excellent hydrophobic properties to cured polymer networks. It is a critical raw material for formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite and 3D printing resin development.

Application

• UV-Curable Coatings & Inks: Serves as a key oligomer to enhance flexibility, adhesion, and chemical resistance in wood, plastic, and metal coatings.
• Toughened Adhesives & Sealants: Used to modify epoxy, polyurethane, or acrylic systems, improving peel strength and impact absorption.
• Elastomer and Rubber Modification: Acts as a reactive plasticizer or crosslinker to improve the low-temperature performance and durability of synthetic rubbers.
• Radiation-Curable Resins for 3D Printing: Incorporated into stereolithography (SLA) or digital light processing (DLP) resins to reduce brittleness and shrinkage.
• Composite Materials: Enhances the toughness and inter-laminar strength of fiber-reinforced polymers (FRP) in automotive and aerospace components.
• Pressure-Sensitive Adhesives (PSAs): Modifies acrylic PSAs to balance tack, shear strength, and flexibility.

Basic Information

Product Name	Polybutadiene Diacrylate
CAS No.	9003-17-2
Molecular Formula	(C4H6)n modified
Molecular Weight	Varies by grade (typically 1,000 - 5,000 g/mol)
Synonyms	Polybutadiene, diacrylate-terminated; Acrylated Polybutadiene; 1,3-Butadiene homopolymer, diacrylate; Hydroxyl-terminated polybutadiene diacrylate; HTPB Diacrylate; Liquid rubber diacrylate; Butadiene-acrylate oligomer; PBDA
EINECS	Contact for details

Quality Control

Our Polybutadiene Diacrylate is manufactured under a strict quality management system. Each batch is characterized for critical parameters including acrylate functionality, molecular weight distribution, viscosity, and residual monomers to ensure consistent performance. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Keep away from heat sources and open flames. For long-term storage, consider under an inert atmosphere (e.g., nitrogen) to prevent premature polymerization and maintain optimal quality.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	1,000 - 10,000 mPa·s (grade dependent)
Acrylate Functionality	1.8 - 2.2
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	≤ 10 mg KOH/g
Moisture Content (KF)	≤ 0.1 %
Identification (IR)	Conforms

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