Specialty chemicals company Lanxess has expanded its Trixene Aqua range of water-based blocked isocyanate dispersions.
One of the grades, Trixene Aqua BI 202 can improve the strength of the chopped glass strands and impart composites higher mechanical, flexural properties, as well as improve impact resistance, the company said.
Other new grades are Trixene Aqua BI 120, an adhesion promoter of Aqua BI 220, enabling formulators to use it in a wide pH range and improving soft handle, and Trixene Aqua BI 522, a nonionic product designed to achieve harder coating, with improved chemical resistance and good drying characteristics. It is applied to metal and glass surfaces.
Lanxess says that the Trixene Aqua products can be used as crosslinkers and adhesion promoters for aqueous coatings systems, boosting the chemical and mechanical resistance of coatings and sizing formulations to improve performance and durability in the final application. Due to the blocked isocyanate group they are more stable than the respective free counterparts and can easily be formulated in 1-K and 2-K systems together with a variety of complementary aqueous resins, e.g. hydroxy-functional acrylics, polyesters and urethanes.
This story uses material from Lanxess, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.