Hexamethylene Diacrylate (HDDA) is a fundamental building block in the world of polymers, playing a pivotal role in enhancing the performance of a wide array of products, from protective coatings to high-strength adhesives. Understanding its properties and applications is key for formulators, R&D scientists, and procurement specialists. NINGBO INNO PHARMCHEM CO.,LTD., as a specialized manufacturer and supplier, offers insights into this versatile monomer.

Chemical Properties and Structure
HDDA is a difunctional acrylate ester with the chemical formula C12H18O4 and CAS number 13048-33-4. The molecule consists of a six-carbon aliphatic chain (hexamethylene) esterified with two acrylic acid molecules. This structure provides HDDA with several desirable properties:

• Low Volatility: Compared to monofunctional acrylates, HDDA exhibits lower vapor pressure, making it safer to handle and reducing volatile organic compound (VOC) emissions in formulations.
• Low Viscosity: HDDA is a liquid at room temperature with a relatively low viscosity. This characteristic makes it an excellent reactive diluent, helping to reduce the viscosity of resin systems, thereby improving their flow and application properties.
• High Reactivity: The presence of two acrylate groups enables rapid polymerization via free radical mechanisms, especially when exposed to UV light or electron beam radiation. This leads to fast curing times.
• Good Adhesion: HDDA promotes strong adhesion to various substrates, including plastics, metals, and wood.
• Enhanced Durability: Its difunctional nature allows for significant crosslinking, contributing to increased hardness, flexibility, chemical resistance, and resistance to yellowing in the final cured product.

Key Applications of HDDA
The unique combination of properties makes HDDA indispensable in numerous applications:

• UV-Curable Coatings: In industrial, wood, plastic, and automotive coatings, HDDA is used to achieve fast curing, excellent scratch and abrasion resistance, good chemical resistance, and high gloss. It is a staple for formulators seeking to buy high-performance monomers.
• Printing Inks: HDDA enhances the cure speed, adhesion, and durability of UV-curable printing inks, making them suitable for packaging, labels, and graphic arts.
• Adhesives and Sealants: Its ability to form strong, flexible, and chemically resistant bonds makes HDDA ideal for structural adhesives and various sealant applications. We supply HDDA for customers looking to purchase reliable raw materials for their adhesive formulations.
• Photopolymer Resins: In photopolymerization for applications like 3D printing, HDDA improves the toughness, resolution, and overall mechanical properties of the printed objects.
• Electronics: Used in applications such as solder masks and electronic coatings for its protective and performance-enhancing qualities.

Choosing a Reliable Supplier
When sourcing Hexamethylene Diacrylate, it is crucial to partner with a manufacturer that guarantees quality and consistency. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-purity HDDA to meet the evolving demands of various industries. Our extensive experience as a supplier ensures that our clients receive not only a superior product but also excellent technical support and competitive pricing. For those looking to buy HDDA, understanding these properties and applications will guide you in making the most effective formulation choices.