Technical Properties
Appearance:? ? ? ? ? ? ? ? ? ? ? ? ? ?white powder or granular
Non-volatile-matter content:???> 98%
Epoxy equivalent:? ? ? ? ? ? ? ? ? ?280-310 g/mol

Application Features
KL-E4370 is an polymeric epoxy functional chain extender. In its structure, the epoxy functional group can realize the expansion chain of the polymer through reacting with the terminal hydroxyl groups, terminal carboxyl groups and terminal amino groups of polycondensation resin. Thus achieving the purpose of improving polycondensation resin viscosity characteristics, mechanical properties and inhibiting the hydrolysis of polymers.
KL-E4370 chain extenders are blended with modified resins by a double screw extruder, single screw extruder.