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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

11636 perguntas
Q
Insufficient orientation degree of PET film
A
PET film orientation degree determines film strength; draw ratio and temperature are the core parameters.
Extrusion & Post PETorientation degreerefractive indexdraw ratiostretching temperature
Q
Dimensional changes of PET injection molded products at high temperature
A
The high-temperature dimensional stability of PET products depends on sufficient crystallinity.
Extrusion & Post PETdimensional changepost-crystallizationannealingmold temperature
Q
Radial streaks on the surface of PET products
A
PET radial streaks are caused by unstable melt front flow.
Injection Molding PETradial streaksmelt frontinjection speed
Q
Whitening in the gate area of PET preforms
Q
PET products embrittle at low temperatures
A
PET low-temperature brittleness is an inherent material characteristic and needs to be improved through formulation and design optimization.
Material Analysis PETlow-temperature embrittlementglass transition temperaturetougheninginternal stress
Q
Burning from poor venting in PET preform '2079851475616104452
Q
Excessive migrants in PET food packaging
A
Q
PET bottle drop test rupture
A
PET bottle drop performance is the comprehensive result of bottle shape design, material selection, and process.
Material Analysis PETdrop testrupturestress concentrationwall thickness
Q
Poor adhesion of PET vacuum aluminized film
A
PET aluminized film adhesion depends on surface treatment and coating process.
Molding Process PETaluminizingadhesioncorona treatmentsurface energy
Q
High density of PET extruded foamed sheet
A
PET foaming density control requires synergy of melt strength, foaming agent, and process.
Material Analysis PETfoamingdensitymelt strengthchain extender
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