stretch film, LLDPE performance-1

stretch film, LLDPE performance-1

Stretch film, LLDPE performance - 1

1.stretch film, LLDPE heat sealing performance.

stretch film heat sealing is particularly good, so stretch film is easy to seal, the operation is convenient, thus saving cost, improve work efficiency, stretch film sealing for

anti pollution is also very strong, it is one of the main features of the stretch film, in certain circumstances, as long as the stretch film is the lowest since the sealing

temperature stretch film good heat seal strength can show. stretch film high elongation, low surface hardness, strech film has good impact resistance, softness. stretch film should

narrow temperature range.

2.Stretch film melting properties.

The same melt flow rate stretch film . LLDPE and LDPE and the relationship with shear rate: stretch film, LLDPE behavior and relatively narrow molecular weight distribution was

similar to that of HDPE, Stretch film, LDPE melt viscosity is high, so stretch film extrusion molding extrusion load increased, stretch film heating of large amount. Stretch film

stretch film melting properties determine the relative molecular mass, relative molecular mass distribution of long chain, etc..

stretch film, LLDPE melt tension than low LDPE, and stretch film melting stress relaxation time is short. Can be observed from the Stretch film T stretch film extrusion melt

necking, stretch film hollow molding parison sag of. Because stretch film melting stress relaxation time is short, stretch film injection molding residual internal stress is small,

so the warping, shrinkage of small.