EFFECTS OF FLEXIBLE AMINE T403 ON THE MECHANIC PROPERTIES 
AND CROSSLINKING DENSITY IN EPOXY SYSTEMS

Abstract

Abstract:

Epoxy modified by a flexible amine (T403) was prepared by casting molding method. The effects of T403 contents on the static and dynamic properties and fracture surfaces of epoxy casts were studied. The relationships between effective average molecular weight of the network chain (Mc) and the mechanical properties of epoxy casts were investigated. With increasing the content of T403, the tensile and flexible strength decreased, while the impact strength increased, which demonstrated that the toughness of epoxy could be improved effectively by T403. SEM analysis showed that the roughness of fracture surfaces of epoxy casts increased with the addition of T403. The theoretical Mc was larger than that of effective Mc, which indicated the complexity of curing reaction.

CLC Number:

TQ323.5

CAI Hong-Yang, Li-Gang, Liu-Hai-Yang. EFFECTS OF FLEXIBLE AMINE T403 ON THE MECHANIC PROPERTIES
AND CROSSLINKING DENSITY IN EPOXY SYSTEMS[J]. Fiber Reinforced Plastics/Composites, 2009, 209(1): 38-41.

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EFFECTS OF FLEXIBLE AMINE T403 ON THE MECHANIC PROPERTIES
AND CROSSLINKING DENSITY IN EPOXY SYSTEMS

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EFFECTS OF FLEXIBLE AMINE T403 ON THE MECHANIC PROPERTIES AND CROSSLINKING DENSITY IN EPOXY SYSTEMS

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EFFECTS OF FLEXIBLE AMINE T403 ON THE MECHANIC PROPERTIES
AND CROSSLINKING DENSITY IN EPOXY SYSTEMS