Trimellitic Anhydride CAS 28961-43-5 As a Plasticizer and Coating Intermediate

In the coatings industry, it is used to prepare wood coatings, plastic coatings, and metal coatings, significantly improving the hardness, abrasion resistance, and chemical corrosion resistance of the coatings.

In the ink industry, it is an important component of offset and screen printing inks, helping to improve ink adhesion and curing speed.

Furthermore, it is commonly used in UV-curing adhesives, enabling rapid bonding of various materials and exhibiting excellent peel strength.

In 3D printing technology, ETPTA, as a monomer component of photosensitive resins, is used in stereolithography (SLA) and digital light processing (DLP) technologies to create high-precision models and parts.

Research shows that ETPTA can be used as an in-situ crosslinking additive for perovskite solar cells. During cell fabrication, it can coordinate with lead ions during annealing, inhibiting halide phase separation and thus constructing a stable grain boundary network. This network structure not only anchors uncoordinated lead defects but also significantly improves the photoelectric conversion efficiency and long-term stability of the cell.