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Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

1439 preguntas
Q
PET Preform Unstable Injection Cycle
A
Cycle = system stability.
Material Drying PET; preform; cycle; plasticization; temperature control
Q
PET Preform Recycled Material Utilization
A
Preform reuse = ratio + drying + IV monitoring.
Material Drying PET; preform; recycling; IV; drying
Q
PET Preform Missing Moisture Verification
A
Intermittent haze = drying system state drift.
Material Drying PET; drying; dew point; molecular sieve; dehumidification
Q
PET Sheet Extrusion Bubbles
A
Bubbles = drying dew point.
Material Drying PET; sheet; bubble; drying; dew point
Q
PET Sheet Extrusion Crystallization Haze
A
Sheet haze = cooling rate and moisture.
Material Drying PET; sheet; extrusion; crystallization; chill roll
Q
PET Preform IV Drop (Intrinsic Viscosity Decrease)
A
IV is the general ledger of PET processing quality.
Material Drying PET; IV drop; intrinsic viscosity; hydrolysis; thermal degradation
Q
PET Preform Acetaldehyde (AA) Odor
A
Odor = degradation products; dual control of temperature and water.
Material Drying PET; acetaldehyde; odor; thermal degradation; hydrolysis
Q
PET Preform Excessive Drying Crystallization
A
Drying is not the longer the better; over-drying = pre-crystallization.
Material Drying PET; preform; excessive drying; crystallization; white haze
Q
PET Preform Insufficient Drying (Hydrolysis)
A
For PET haze, first check the preform's moisture; one new preform is enough for comparison.
Material Drying PET; preform; drying; hydrolysis; white haze
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