Problem & Solution

Practical answers to common plastic material challenges

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Warpage in PU '2079851475616104452

Injection Molding PU injectionwarpageshrinkageholding pressureannealing

Delamination in PU Blending with Incompatible Resins

Extrusion & Post PU blend delaminationpolarity differencePU-g-MAHreactive compatibilizationinterfacial bonding

Premature Gate Freezing in PU '2079851475616104452

Injection Molding PU injectiongate freezingholding pressure transmissiongate sizemold temperature

Die Buildup and Carbon Deposit in PU Extrusion

Extrusion & Post PU extrusiondie carbon depositPE flushingstagnation zonethermal oxidation

Burnt Marks from Insufficient Mold Venting in PU '2079851475616104452

Injection Molding PU injectionmold burningvent grooveinjection speedair compression

Pellet Sticking in PU Extrusion Pelletizing

Extrusion & Post PU pelletizingpellet stickingpelletizing water temperaturecutter speedelastic recovery

Severe Parison Sag in PU Extrusion '2079851475616104457

Blow Molding PU '2079851475616104457parison sagmelt strengthslight crosslinkingwall thickness control

Poor Interfacial Bonding Between PU and Filler

Material Analysis PU fillerinterfacial bondingcoupling agentcompatibilizerfiller dispersion

PU Product Yellowing After Processing

Production & Quality PU yellowingthermo-oxidationantioxidantUV absorbermetal catalysis

Dimensional Change of PU Products During Long-Term Storage

Material Analysis PU dimensional stabilityphysical agingannealingsecondary crystallizationslight crosslinking

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