NINGBO INNO PHARMCHEM CO.,LTD. is pleased to introduce HARDLION RE, a premium quality Triphenylmethane triisocyanate solution specifically developed for demanding industrial adhesive applications. This sophisticated chemical intermediate, identified by CAS No. 2422-91-5 and the chemical formula C22H13N3O3, serves as a powerful crosslinking agent crucial for elevating the performance characteristics of various adhesive systems.

Triphenylmethane triisocyanate, the active component in HARDLION RE, is an aromatic isocyanate widely recognized for its ability to form robust linkages within polymer matrices. Unlike simple monomers, this molecule features multiple reactive isocyanate groups (-NCO), enabling it to bridge multiple polymer chains simultaneously. This process, known as crosslinking, transforms linear or branched polymer structures into a complex, three-dimensional network. The resulting network significantly improves the cohesive strength, thermal stability, chemical resistance, and overall durability of the final adhesive bond.

HARDLION RE is supplied as a light yellow liquid solution in ethyl acetate, offering convenient handling and incorporation into adhesive formulations. Its typical specifications include a solid content of approximately 27% and an NCO content of 9.3 ± 0.2%. These parameters are carefully controlled during manufacturing at NINGBO INNO PHARMCHEM CO.,LTD. to ensure consistent performance and reliability for our customers. The specific appearance can vary, presenting as yellow-green, red-brown, or dark violet depending on concentration and potentially other factors, but its functional properties remain consistent.

The primary application of HARDLION RE is as a highly effective crosslinker for adhesives based on polyurethane, natural rubber, and various synthetic rubbers. When added to these base adhesive formulations, it reacts with hydroxyl, amine, or carboxyl groups present in the polymer backbone, forming strong covalent bonds. This crosslinking action is particularly beneficial for improving adhesion to difficult substrates, especially rubber-based materials, where achieving a strong, lasting bond can be challenging.

Using HARDLION RE transforms a one-component adhesive system into a two-component system. The HARDLION RE component is added to the base adhesive shortly before application. Once mixed, the crosslinking reaction begins. A critical consideration when working with two-component adhesives utilizing isocyanate crosslinkers like HARDLION RE is the concept of pot life. Pot life refers to the period during which the mixed adhesive remains usable – low enough in viscosity to be easily applied and before significant curing or gelling occurs. The pot life is not solely determined by the polymer content of the adhesive base but is also influenced by other additives such as resins, antioxidants, plasticizers, and the solvent system. Environmental factors like temperature and humidity also play a significant role.

As the mixed adhesive approaches the end of its pot life, its viscosity increases rapidly, making processing increasingly difficult. Beyond the pot life, irreversible gelling occurs, rendering the adhesive unusable. This necessitates careful planning and mixing quantities appropriate for immediate use within the given pot life, which can range from several hours to a full working day depending on the specific formulation and conditions. NINGBO INNO PHARMCHEM CO.,LTD. provides guidance on typical usage concentrations, though optimal levels should always be determined through testing in the end-user's specific formulation.

The benefits of incorporating HARDLION RE into adhesive formulations are substantial. Adhesives crosslinked with Triphenylmethane triisocyanate exhibit enhanced heat resistance, improved resistance to water, solvents, and chemicals, and superior mechanical strength and durability. This makes them ideal for demanding applications in industries such as automotive, footwear, construction, and general assembly, where reliable and long-lasting bonds are essential.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to supplying high-quality chemical raw materials like HARDLION RE. As a trusted manufacturer and supplier, we ensure stringent quality control throughout the production process, from raw material sourcing to final product packaging. Our technical team is available to provide support and information regarding the optimal use of HARDLION RE in various adhesive formulations, helping our customers achieve the best possible results.

For detailed information on price or to buy this high-quality Triphenylmethane triisocyanate solution, please contact NINGBO INNO PHARMCHEM CO.,LTD. Interested parties looking to purchase in bulk or discuss potential applications are encouraged to reach out to our sales department. We are ready to fulfill your requirements for high-performance adhesive crosslinkers.