Product Name: SINOMER® DCP-220
Chemical Identity: Tricyclodecane Mono(meth)acrylate (TCDNA)
CAS Number: 127823-21-6 ; 93962-84-6
Molecular structure:
SINOMER® DCP-220 is a premium UV-curable monomer based on a unique tricyclodecane (TCD) chemistry. Engineered for high performance, it delivers an exceptional balance of a high glass transition temperature (Tg >140°C), excellent hardness, low shrinkage, and superior durability. Its versatile properties make it an ideal choice for demanding applications in advanced coatings, adhesives, 3D printing resins, and optical materials.
The unique three-ring, cage-like structure of the TCD core acts as a built-in molecular reinforcement. This provides exceptional structural rigidity and thermal stability, resulting in cured materials with high surface hardness and outstanding resistance to heat and deformation.
As a mono-functional monomer, DCP-220 exhibits minimal volumetric change during polymerization. This low shrinkage minimizes internal stress, preventing film cracking, warping, and substrate deformation. It ensures excellent dimensional stability and adhesion, particularly on sensitive substrates.
The high Tg and stable chemical structure impart excellent resistance to abrasion, chemicals, and UV radiation. Cured films maintain their clarity and mechanical properties over time, offering long-term performance in both indoor and outdoor environments.
DCP-220 features a low viscosity for easy handling and formulation, and low odor for improved working conditions. It enables the creation of high-performance systems without compromising processability.
Leveraging its comprehensive advantages of high hardness, rapid curing, low shrinkage, excellent weatherability, and high refractive index, SINOMER® DCP-220 delivers exceptional performance across a spectrum of advanced applications.
The high refractive index of DCP-220 makes it ideal for optical coatings and lenses, enhancing both light transmittance and surface gloss. Common challenges in optical adhesives, hard coats, and waveguides—such as poor transparency, susceptibility to scratching, and dimensional instability—are effectively addressed. DCP-220 ensures long-term clarity with its high transparency and low yellowing properties. Its low shrinkage prevents film warping, while its inherent hardness provides scratch resistance. This makes it perfectly suited for high-precision, high-durability applications like smartphone screen protectors and optical lenses, eliminating the traditional trade-off between optical performance and ruggedness.
The low shrinkage of DCP-220 guarantees high printing accuracy, and its fast curing enhances production efficiency. In applications like dental models or precision part printing, achieving "forming accuracy" and managing "post-processing difficulty" are major hurdles. DCP-220's low viscosity (~20 cps at 25°C) ensures excellent resin flow, easily filling intricate mold details for micron-level precision. The cured parts exhibit low internal stress, minimizing cracking and significantly simplifying post-processing steps such as sanding and cleaning. It is particularly well-suited for industrial-grade 3D printing where dimensional stability is critical, enabling the simultaneous achievement of "rapid prototyping and accurate realization."
Underfill adhesives and protective sensor coatings must balance low stress, resistance to heat/humidity, and strong adhesion. DCP-220 excels in these areas due to its exceptionally low shrinkage and high adhesive strength. The low internal stress resulting from minimal shrinkage helps prevent damage to delicate chips and solder joints during the encapsulation process. Its resistance to thermal cycling and chemicals ensures reliable operation of electronic devices in demanding environments, providing robust protection for applications ranging from smartphone chips to industrial sensors.
Suitable for coatings on furniture, appliances, and automotive components, DCP-220 marries surface hardness with long-term weatherability. Coatings for automotive interiors or consumer electronics housings demand "fast application, superior finish," alongside "scratch resistance and aging resistance." The low viscosity of DCP-220 promotes even coating distribution and excellent flow, reducing the need for multiple passes. The cured film forms a hard, yet tough layer that resists daily abrasion, UV exposure, and chemical attack, helping products maintain a "like-new" appearance for longer. Additionally, it shortens cure cycles, boosting overall production line efficiency.
UV-curable adhesives for medical and electronic applications cannot compromise on "bond strength" or exhibit "high irritation." DCP-220 provides high adhesion to a variety of substrates, creating strong, durable bonds. Furthermore, its low VOC, low irritation potential, and low odor profile align with the stringent safety requirements of medical products, ensuring a safer working environment for operators. It is ideally suited for bonding applications in medical devices and electronic component assembly.
Across UV-curable coatings, inks, adhesives, 3D printing, and optical materials, SINOMER® DCP-220 demonstrates unique value. From an environmental and health perspective, its low VOC and low-irritation properties not only enhance final product performance but also contribute to a safer workplace, reflecting a commitment to responsible manufacturing. From initial R&D to full-scale production, our customer-focused approach ensures that the core advantages of SINOMER® DCP-220 provide the critical support needed to solve real-world application challenges.
SINOMER® DCP-220 is more than just a monomer; it's a performance enabler. It allows formulators to push the boundaries of UV-curable systems, creating products that are not only harder and more durable but also more reliable and efficient to process. By solving core challenges like shrinkage, heat resistance, and longevity, DCP-220 adds critical value across the innovation chain.
