TPGDA: Key additives in UV curing systems and innovative applications of Shenzhen U-Sunny AM-321

May 12, 2025 Leave a message

In the chemical industry, tripropylene glycol diacrylate (TPGDA), as a high-performance active diluent, has become a core formulation additive in the fields of coatings, inks, adhesives, etc. Its unique chemical properties combined with the AM-321 product (also known as TPGDA) launched by Shenzhen U-Sunny Company provide the industry with efficient and environmentally friendly solutions.

 

1. Technical characteristics and core advantages of TPGDA
TPGDA (CAS 42978-66-5) is a difunctional acrylate monomer with a molecular weight of 300.35 and is a colorless or slightly yellow transparent liquid. Its core advantages include:

Low viscosity and fast curing: In UV/EB radiation crosslinking, TPGDA can significantly reduce the viscosity of the resin system and shorten the curing time, which is suitable for high-speed printing and coating processes.
High flexibility: The cured coating or ink has excellent flexibility and adhesion, especially suitable for plastic substrates and electronic circuit board protection.
Environmental protection: Low volatility (extremely low VOC content) and low irritation formula are in line with the trend of green chemical industry.

 

2. Application scenarios of TPGDA in the chemical industry
Coating industry: used in wood coatings, PVC coatings and automotive OEM coatings to improve weather resistance and wear resistance. For example, in PVC UV-curing coatings, the combination of TPGDA and TMPTA can optimize the hardness and flexibility of the coating.
Ink and printing: As a key component of solder mask inks and flexographic printing formulas, TPGDA reduces system viscosity and enhances pigment dispersion, and is suitable for high-precision scenarios such as offset printing and screen printing.
Adhesives and sealants: Replace traditional cross-linking agents (such as hydroxymethyl diolefin amide), with low dosage and high cross-linking efficiency, suitable for photoresists and electronic packaging materials.

 

3. Shenzhen U-Sunny AM-321: Optimization and Upgrade Solution of TPGDA
The AM-321 product (TPGDA) launched by Shenzhen U-Sunny is further optimized on the basis of the traditional formula:

Balanced performance: By adjusting the monomer structure, AM-321 reduces odor and improves film-forming performance while maintaining low viscosity (10–15 cps), which is suitable for high-demand industrial environments.
Economical efficiency: Compared with similar products (such as DEGDA), AM-321 has better solubility and flexibility, and is more cost-effective.
Application expansion: It has been successfully used in the fields of UV coatings and optical films for 3C electronics and new energy vehicles, meeting the requirements of high temperature resistance (200°C) and chemical corrosion resistance.

Ink Formulation Additive TPGDA

4. U-Sunny's technical strength and market positioning
Shenzhen U-Sunny (Youyang) has been deeply engaged in UV/EB curing technology for more than 20 years. It has its own R&D base and advanced testing equipment, and its annual production capacity covers global demand. Its core competitiveness includes:

Customized service: adjust the viscosity, refractive index and other parameters of AM-321 according to customer needs to adapt to high-end scenarios such as semiconductor packaging and flexible display.
Environmental certification: The product complies with RoHS and REACH standards, helping customers reduce their carbon footprint.

 

By integrating the scientific properties of TPGDA and the industrial advantages of AM-321, Shenzhen U-Sunny provides solutions that combine performance and sustainability for the coatings, inks, and adhesives industries. In the future, with the iteration of technology, the application boundaries of TPGDA will be further expanded, driving the chemical industry towards green and high-end development.