Application Fields of 1,6-Hexanediol Diacrylate (HDDA)
1,6-Hexanediol Diacrylate (HDDA, CAS No. 13048-33-4) is a versatile di-functional acrylate monomer widely used in UV/EB-curable coatings, adhesives, and polymer synthesis due to its high reactivity, low viscosity, and excellent film-forming properties. Below are its primary application fields:
Paints and Varnishes:
Acts as a reactive diluent in UV-curable formulations (e.g., wood, metal, plastic coatings) to reduce viscosity while enhancing crosslinking density, improving hardness, chemical resistance, and gloss.
Used in floor coatings, automotive topcoats, and decorative coatings for electronics.
Printing Inks:
Formulates fast-drying UV/EB-curable inks for packaging (flexible films, paper), graphic arts, and digital printing, ensuring high resolution and scratch resistance.
UV-Curable Adhesives:
Develops high-strength bonding agents for plastics, glass, and metals in applications like optical bonding, automotive assembly, and electronics.
Low shrinkage during curing minimizes stress on delicate components.
Sealants and Gaskets:
Used in structural sealants for construction and aerospace, offering rapid curing and resistance to environmental factors (moisture, temperature fluctuations).
Reactive Diluent in Resins:
Dilutes high-viscosity resins (e.g., epoxy acrylates, urethane acrylates) in composite manufacturing, improving processability for filament winding, pultrusion, or hand lay-up.
3D Printing (Additive Manufacturing):
Serves as a key component in photopolymer resins for stereolithography (SLA) and digital light processing (DLP), enabling rapid layer curing and dimensional accuracy.
Functional Finishes:
Imparts water resistance, abrasion resistance, and color fastness to textiles via UV-curable coatings for apparel, upholstery, and technical fabrics (e.g., outdoor gear).
Leather Coating:
Forms flexible, glossy coatings on leather for footwear, accessories, and furniture, enhancing durability and aesthetic appeal.
Protective Coatings:
Used in conformal coatings for PCBs to shield against moisture, dust, and chemical corrosion, critical for consumer electronics and industrial equipment.
Optical Components:
Cures into transparent, low-yellowing films for optical adhesives, lens coatings, and display laminations.
OEM Coatings:
Formulates durable clear coats and basecoats for automotive panels, providing resistance to UV radiation, scratches, and chemicals.
Aerospace Composites:
Enhances the crosslinking efficiency of composite materials used in aircraft components, balancing lightweight design with mechanical strength.
Medical-Grade Adhesives:
Develops biocompatible UV-curable adhesives for bonding medical devices (catheters, syringes) and sterile packaging, compliant with regulatory standards (e.g., ISO 10993).
Drug Delivery Systems:
Research applications in photocurable polymers for controlled drug release systems.
Wood Coatings:
Forms high-gloss, scratch-resistant UV-cured finishes on wooden furniture, flooring, and cabinetry, ensuring fast production line throughput.
Laminates and Veneers:
Bonds decorative laminates to substrates with rapid UV curing, improving manufacturing efficiency.
High Reactivity: Two acrylate groups enable rapid crosslinking under UV/EB radiation.
Low Viscosity: Facilitates easy formulation with other resins and additives.
Chemical Resistance: Cured films exhibit excellent resistance to solvents, acids, and alkalis.
Flexibility vs. Hardness Balance: Adjustable properties via co-formulation with other monomers (e.g., monofunctional or multifunctional acrylates).
Safety Note: HDDA is a reactive monomer; proper handling with personal protective equipment (PPE) and ventilation is required. Always refer to its SDS for storage, usage, and environmental considerations.
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