문제 및 해결책

Q

Metallocene linear low density polyethylene MLLDPE excessive gel/gel particles

A

MLLDPE gel particles are caused by insufficient plasticization, requiring increased processing temperature and strengthened filtration.

Processing Machinery MLLDPEgel particlesplasticizing temperaturefilter screenscrew mixing

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing

A

Barrel temperature fluctuation is caused by heating or temperature control system failures, requiring regular inspection and maintenance of heater bands, thermocouples and temperature control instruments.

Processing Machinery temperature fluctuationheater bandthermocoupletemperature control instrumentPID parameters

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene improper processing temperature window selection

A

Temperature window selection is the foundation of processing, and needs to be set reasonably according to material characteristics and actual operating experience.

Processing Machinery processing temperaturetemperature windowplasticization qualitymaterial degradationtemperature calibration

Q

Metallocene linear low density polyethylene MLLDPE excessive gel/gel particles（Variant: Mass Production Scenario）

A

MLLDPE gel particles are caused by insufficient plasticization, requiring increased processing temperature and strengthened filtration.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery MLLDPEgel particlesplasticizing temperaturefilter screenscrew mixing

Q

Metallocene linear low density polyethylene MLLDPE excessive gel/gel particles（Variant: Color/Material Change Scenario）

A

MLLDPE gel particles are caused by insufficient plasticization, requiring increased processing temperature and strengthened filtration.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery MLLDPEgel particlesplasticizing temperaturefilter screenscrew mixing

Q

Metallocene linear low density polyethylene MLLDPE excessive gel/gel particles（Variant: Startup Commissioning Scenario）

A

MLLDPE gel particles are caused by insufficient plasticization, requiring increased processing temperature and strengthened filtration.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery MLLDPEgel particlesplasticizing temperaturefilter screenscrew mixing

Q

Metallocene linear low density polyethylene MLLDPE excessive gel/gel particles（Variant: Strengthened Measures）

A

MLLDPE gel particles are caused by insufficient plasticization, requiring increased processing temperature and strengthened filtration.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery MLLDPEgel particlesplasticizing temperaturefilter screenscrew mixing

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing（Variant: Mass Production Scenario）

A

Barrel temperature fluctuation is caused by heating or temperature control system failures, requiring regular inspection and maintenance of heater bands, thermocouples and temperature control instruments.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature fluctuationheater bandthermocoupletemperature control instrumentPID parameters

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing（Variant: Color/Material Change Scenario）

A

Barrel temperature fluctuation is caused by heating or temperature control system failures, requiring regular inspection and maintenance of heater bands, thermocouples and temperature control instruments.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature fluctuationheater bandthermocoupletemperature control instrumentPID parameters

Q

Metallocene linear low density polyethylene film insufficient strength（Variant: Mass Production Scenario）

A

Insufficient film strength is caused by improper material selection or process parameters, requiring optimization from raw material, temperature and blow-up ratio.Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery film strengthMFRblow-up ratiodraw ratiomaterial degradation

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