Problem & Solution

Q

Metallocene linear low density polyethylene blown film poor transparency（Variant: Mass Production Scenario）

A

Poor transparency is caused by high crystallinity or impurities, and needs improvement by increasing temperature, speeding up cooling and selecting suitable materials.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post poor transparencycrystallinitycooling ratenucleating agenthaze

Q

Metallocene linear low density polyethylene blown film poor transparency（Variant: Color/Material Change Scenario）

A

Poor transparency is caused by high crystallinity or impurities, and needs improvement by increasing temperature, speeding up cooling and selecting suitable materials.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post poor transparencycrystallinitycooling ratenucleating agenthaze

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene large barrel temperature fluctuations during processing（Variant: Strengthened Measures）

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 blocking/poor opening（Variant: Strengthened Measures）

A

Film blocking is caused by surface tension and temperature, and needs to be solved by adding anti-blocking agents and controlling winding conditions.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

Q

Metallocene linear low density polyethylene film insufficient strength（Variant: Seasonal Change 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

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene process transition problems when switching production between different processing methods（Variant: Startup Commissioning Scenario）

A

Production-switch transition requires advance planning and adequate preparation; the key is to clarify the differentiated material requirements of different processing methods.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post production switchprocessing methodprocess parametersmaterial gradetrial production verification

Q

Metallocene linear low density polyethylene film insufficient strength（Variant: Startup Commissioning 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

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene process transition problems when switching production between different processing methods（Variant: Strengthened Measures）

A

Production-switch transition requires advance planning and adequate preparation; the key is to clarify the differentiated material requirements of different processing methods.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post production switchprocessing methodprocess parametersmaterial gradetrial production verification

Q

Metallocene linear low density polyethylene film insufficient strength（Variant: Strengthened Measures）

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

Q

Metallocene linear low density polyethylene blown film poor transparency（Variant: Seasonal Change Scenario）

A

Poor transparency is caused by high crystallinity or impurities, and needs improvement by increasing temperature, speeding up cooling and selecting suitable materials.Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post poor transparencycrystallinitycooling ratenucleating agenthaze

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