Problem & Lösung

Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Q

Large current fluctuation of polyolefin plastomer extruders (Variant: Enhanced Measures)

A

Current fluctuation is caused by large plasticization resistance or equipment problems, and needs to be solved from temperature control, raw material purity, and equipment maintenance. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery current fluctuationscrew torqueplasticization temperatureraw material impuritiesscreen clogging

Q

Screw wear of polyolefin plastomer extruders causes poor plasticization (Variant: Enhanced Measures)

A

Screw wear causes the plasticization efficiency to decline, and needs to be solved by selecting wear-resistant materials and regular maintenance. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery screw wearpoor plasticizationwear-resistant materialsscrew gapscrew speed

Q

Polyolefin plastomer polyolefin plastomer processing barrel temperature fluctuation is large (Variant: Enhanced Measures)

A

Barrel temperature fluctuation is caused by heating or temperature control system failure, and the heating rings, thermocouples, and temperature control instruments need to be regularly inspected and maintained. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature fluctuationheating ringthermocoupletemperature control instrumentPID parameters

Q

Insufficient strength of polyolefin plastomer films (Variant: Enhanced Measures)

A

Insufficient film strength is caused by improper material selection or process parameters, and needs to be optimized from raw materials, 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

Excessive shrinkage rate of polyolefin plastomer extruded products (Variant: Enhanced Measures)

A

Excessive shrinkage is caused by high crystallinity or high temperature, and needs to be solved by controlling the temperature and cooling rate. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery shrinkage ratecrystallinitymelt temperaturecooling ratehauling speed

Q

The wide temperature window of polyolefin plastomer PE raw materials makes process parameter optimization difficult (Variant: Enhanced Measures)

A

PE temperature window optimization needs to be advanced from two aspects: systematic experiments and experience accumulation. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery temperature optimizationPE gradeDOEprocess parameterstemperature database

Q

Frequent screen changes/short screen life of polyolefin plastomer extruders (Variant: Enhanced Measures)

A

Frequent screen clogging is caused by raw material impurities or improper process, and needs to be solved from raw material management and temperature control. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery screenimpuritiescarbidesbarrel temperaturescreen change frequency

Q

Insufficient heat seal strength of polyolefin plastomer films (Variant: Enhanced Measures)

A

Insufficient heat seal strength is caused by improper temperature, pressure, or time settings, and the heat seal process parameters need to be optimized. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery heat seal strengthheat seal temperatureheat seal pressurefilm thicknessheat seal material

Q

Screw design mismatch of polyolefin plastomer extruders (Variant: Enhanced Measures)

A

The screw design needs to match the material characteristics and product requirements, and a dedicated screw should be customized when necessary. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery screw designcompression ratioL/D ratiomixing elementsscrew matching

Q

No gloss on the surface of polyolefin plastomer extruded products (Variant: Enhanced Measures)

A

The glossless surface is caused by low die temperature or excessive cooling, and it is necessary to raise the die temperature and slow down cooling. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery no glossdie temperaturecooling ratedie polishingmelt temperature

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