Функциональные мономеры

Неопентилгликольдиметакрилат (NPGDMA)

Neopentyl Glycol Dimethacrylate, commonly abbreviated as NPGDMA and identified by CAS Number 1985-51-9, is a high-performance difunctional methacrylate monomer that serves as a vital crosslinking agent in the polymer industry. Characterized by its low viscosity and low volatility, this ester is synthesized through the esterification of neopentyl glycol with methacrylic acid. In the global chemical market, NPGDMA is esteemed for its ability to enhance the mechanical strength and chemical resistance of various thermoset resin systems. Its unique branched structure provides a strategic balance between flexibility and rigidity, making it an indispensable building block for advanced materials. As a reactive diluent, it facilitates easier processing while contributing to the final product’s durability and thermal stability. Whether utilized in free-radical polymerization or UV/EB curing processes, NPGDMA provides consistent performance across a broad spectrum of industrial applications, ensuring high-quality outcomes in demanding environments.

Характеристики

Ключевые свойства и преимущества

Low Viscosity: Facilitates excellent handling and efficient dilution of resin systems.
High Crosslink Density: Enhances mechanical properties, including hardness and impact resistance.
Outstanding Weatherability: Provides superior resistance to UV radiation and oxidative degradation.
Chemical Resistance: Improves the substrate’s ability to withstand harsh solvents, acids, and bases.
Low Volatility: Ensures minimal vapor emission during processing, promoting a safer working environment.
Thermal Stability: Maintains structural integrity under elevated temperatures.
Versatility: Compatible with a wide range of acrylic and polyester resins, ensuring seamless integration into existing formulations.

Спецификации

Технические особенности

Appearance: Clear, colorless to slightly yellowish liquid.
Purity: Typically 98 percent or higher by GC analysis.
Molecular Weight: Approximately 240.3 g/mol.
Viscosity: Measured between 5-10 mPa·s at 25 degrees Celsius.
Inhibitor Content: Standardly stabilized with 50-150 ppm MEHQ to prevent premature polymerization.
Solubility: Immiscible in water; highly soluble in most organic solvents including alcohols, ethers, and esters.
Storage: Should be kept in a cool, dry, and well-ventilated area, away from direct sunlight and heat sources to maintain stability.
Safety: Handle with standard protective equipment; avoid contact with skin and eyes.

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Практическое применение в отраслях

Области применения

Powder Coatings: Used as a reactive crosslinker to improve flow and durability.
Adhesives and Sealants: Enhances bond strength and environmental resistance in industrial formulations.
Photopolymers: A key component in 3D printing resins and dental materials due to its rapid curing.
Plastics Modification: Employed in the production of PVC plastisols and glass fiber-reinforced plastics.
Textiles and Paper: Utilized in functional coatings to improve moisture resistance.
Rubber Compounding: Acts as a co-agent for peroxide-cured elastomers.
Specialty Inks: Integrated into UV-curable ink systems for improved adhesion and scratch resistance.