In the field of coatings, inks and adhesives in the chemical industry, TPGDA (tripropylene glycol diacrylate) has become one of the core raw materials of UV curing technology due to its unique chemical properties. As the core component of Shenzhen U-Sunny's AM-321 product, TPGDA has shown significant advantages in green manufacturing and high-performance formulations.
1. Chemical properties and industry applications of TPGDA
TPGDA (molecular formula C15H24O6, CAS 42978-66-5) is a difunctional acrylate monomer with low viscosity (10-20CPS, 25°C), high reactivity and fast curing properties. The additional ethoxy structure in its molecule gives it excellent solubility and flexibility, making it widely used as a reactive diluent and crosslinker in UV/EB (electron beam) curing systems. For example:
Adhesive field: TPGDA can significantly reduce the viscosity of the resin system and improve the adhesion and weather resistance of the coating. Studies have shown that the volume shrinkage of polyurethane adhesives with the addition of TPGDA can be reduced to 1.75%, while the adhesion strength to materials such as glass and PVC is increased by more than 2MPa.
Coatings and inks: As the main diluent in photocuring formulas, TPGDA can reduce the radiation dose requirement by more than 50%, and is suitable for wood coatings, plastic coatings and printing inks.
2. Technological breakthroughs of Shenzhen U-Sunny AM-321 products
Shenzhen U-Sunny's AM-321 (also known as TPGDA) is designed for high-performance adhesives and has the following core advantages:
Low volatility and environmental friendliness: AM-321 optimizes the synthesis process to reduce irritation to below industry standards and complies with EU REACH regulations.
Multifunctional and balanced performance: The product achieves a balance between glass transition temperature, dilution ability and film-forming flexibility, and is suitable for precision scenarios such as automotive OEM coatings and electronic adhesives.
Customized solutions: In response to the needs of composite materials and special coatings, AM-321 supports rapid formula iteration to meet customers' requirements for high temperature resistance (>150°C) and strong acid and alkali environments.
3. TPGDA market trends and policy drivers
According to the "2024-2030 China TPGDA Industry Research Report", the global UV curing monomer market is expected to exceed 6 billion yuan in 2025, of which TPGDA accounts for 23.2%, second only to TMPTA. As a major producer, China has benefited from policy support for green chemical industry (such as the "14th Five-Year Plan" new materials plan), and TPGDA demand has surged in the following areas:
Environmentally friendly adhesives: replace traditional solvent-based products and reduce VOC emissions.
New energy and electronics: used in high-end applications such as lithium battery encapsulation glue and optical film bonding.
As a key material for green chemistry in the 21st century, TPGDA is driving the adhesive industry to transform towards high efficiency and environmental protection. Shenzhen U-Sunny's AM-321 product has become a benchmark solution in this field through technological innovation and precise market positioning. If you need to obtain a customized TPGDA formula or AM-321 sample, please contact the U-Sunny technical team (+8613823311709).