PRODUCT APPLICATION

Under hot and humid conditions, the intramolecular ester bonds of PET/PBT materials are prone to hydrolysis and breakage, leading to a decline in comprehensive performance and a shortening of service life. Adding anti-hydrolysis agent products can reduce the acid value of polyesters. A relatively low addition amount can significantly improve material quality and extend the long-term stability of the materials.

Both PLA and PBAT are widely used biodegradable plastics, containing ester groups that tend to hydrolyze in hot and humid environments—impacting their mechanical properties and service life. Since terminal carboxyl groups are the main cause of hydrolysis, adding an anti-hydrolysis agent can cap these groups, enhancing the hydrolysis resistance and service life of PLA/PBAT.

Nylons have high water absorption, and absorbed moisture triggers internal hydrolysis reactions. Adding an anti-hydrolysis agent can significantly improve the hydrolysis resistance of PA and enhance its mechanical properties.

Under hot and humid conditions, ester groups in TPU/PU materials tend to hydrolyze, causing molecular chain scission. The resulting carboxylic acids further catalyze ester hydrolysis, ultimately reducing polyurethane's comprehensive performance, service life and its application. Adding an anti-hydrolysis agent reacts with these carboxylic acids (polyurethane hydrolysis products) or water to prevent further autocatalytic hydrolysis, enhancing polyurethane's overall performance, service life and especially hydrolysis resistance under high-temperature humidity.

PC materials hydrolyze, yellow and age when long exposed to hot and humid environments. This is because ester bonds in PC molecular chains easily react with carboxylic acids or water under such conditions, causing chain scission that in turn reduces PC’s performance and service life. Adding an anti-hydrolysis agent reacts with PC’s terminal carboxyl groups and carboxylic acids from its decomposition, forming stable, side-effect-free urea-based compounds—slowing polymer hydrolysis, extending service life and resolving hydrolysis-induced performance decline of PC materials.

Our company is the only and earliest enterprise in China that uses isocyanate shrinkage method to produce this series of anti-hydrolysis agents. Compared with the traditional thiourea method, this process is safe and reliable, clean and the product is with light color, high activity, no odor, no sulfur element residue. This series of products are mainly used in polyester backplane film for photovoltaic, insulation film, polyester industrial rubber silk for paper mesh, polyurethane material for high-grade sports shoes and ski shoes upper, nylon parts in automotive engine cabin, and biodegradable materials PLA,PBAT, to prepare more durable 3D printing materials.

Diol-HCA^TM /Amine-HCA^TM series chain extenders are produced by ethylene carbonate catalytic ring opening shrinkage method, transesterification method and wet collation method with low pollution and high safety. This kind of method is different traditional ethylene oxide high pressure ring opening shrinkage method and dehydration esterification method which process can get rid of high risk, high pollution, unstable quality and so on. The obtained products have the advantages of stable quality, less impurities and high purity to serve many customers at home and abroad. This series of products are mainly used in the preparation of ship deck protective film curing agent, polyurethane elastomer with complex structure, large mining machinery tire, hydraulic sealing ring of all kinds of construction machinery, and high and low temperature resistance starting tube.