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Practical answers to common plastic material challenges

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Uneven crystallization white haze of PET injection products

Injection Molding PETuneven crystallizationwhite hazemold temperaturespherulite

Sticking of PET during drying

PET drying sticking requires strict control of temperature and residence time.

Material Drying PETdryingstickingpre-crystallizationtemperature control

Color darkening in PET extrusion pelletizing

Material Drying PETextrusion pelletizingyellowingthermal degradationnitrogen protection

Pearl luster spots on PET bottle body

Extrusion & Post PETpearl lustercrystallizationheating temperature

Processing difficulty after adding thermally conductive fillers to PET

Material Analysis PETthermally conductive fillerprocessing difficultyviscositycoupling agent

Poor dimensional accuracy of PET extruded profiles

PET profile dimensional accuracy requires stable control of the entire process.

Extrusion & Post PETprofiledimensional accuracysizing diehaul-off

High acetaldehyde content in PET preforms

PET preform acetaldehyde content control is a key safety indicator for food packaging.

Processing Machinery PETacetaldehydeAA contentthermal degradationfood packaging

Uneven wall thickness of PET stretch blow bottles

Blow Molding PETstretch blowuneven wall thicknesspreform designstretch rod

High breakage rate in PET fiber spinning

Extrusion & Post PETspinningbreakagegel particlesfiltration

Gel particles and fisheyes on PET sheet surface

PET gel particles originate from impurities, degradation, or excessive drying.

Material Drying PETgel particlegelsolid-state polycondensationimpurities

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