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Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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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

Q

Improper production environment control in polyolefin plastomer polyolefin plastomer processing (Variant: strengthened measures)

A

The production environment is an important factor affecting processing quality, and a complete environmental control system needs to be established. Targeted preventive measures need to be taken in different production scenarios.

Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability

Q

Excessive polyolefin plastomer POP blending ratio causes film stickiness (Variant: strengthened measures)

A

POP blending stickiness needs to be solved by controlling the ratio, adding additives and optimizing winding conditions. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post POP blendingfilm stickinessslip agentantiblock agentwinding temperature

Q

Rough inner wall of polyolefin plastomer extruded products (Variant: strengthened measures)

A

Inner wall roughness is caused by low mandrel temperature or poor surface condition, and needs to be solved from temperature control and mold maintenance. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery inner wall roughnessmandrel temperaturemandrel polishingmelt temperatureplasticizing quality

Q

Polyolefin plastomer extruded products show degradation discoloration (Variant: strengthened measures)

A

Degradation discoloration is caused by overheating or excessive shear, and needs to be prevented from the three aspects of temperature control, rotation speed and material selection. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery degradation discolorationthermal degradationscrew rotation speedresidence timeantioxidant

Q

Cyclic pressure fatigue failure of polyolefin plastomer PPR pipes (Variant: strengthened measures)

A

Fatigue failure is caused by internal defects and stress concentration, and needs to be improved from the three aspects of pipe inner wall quality, welding quality and material toughness. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post fatigue failurePPRstress concentrationinner wall qualitywelding weld bead

Q

Defects caused by insufficient drying before polyolefin plastomer polyolefin plastomer processing (Variant: strengthened measures)

A

Insufficient drying is a common root cause of processing defects, and a complete drying system and moisture content detection system needs to be established. Targeted preventive measures need to be taken in different production scenarios.

Material Drying raw '2079851475616104451moisture contentsilver streakbubbledehumidifying drying

Q

Thermal aging performance of polyolefin plastomer PPR pipes not meeting standard (Variant: strengthened measures)

A

Failure of thermal aging performance to meet standards is caused by insufficient antioxidant system, and needs to be solved from formulation and processing temperature control. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post thermal agingantioxidantPPRoxidation induction timeextrusion temperature

Q

Bubbles/pores on the surface of polyolefin plastomer extruded products (Variant: strengthened measures)

A

Bubbles are caused by water vaporization or gas entrainment, and need to be solved from raw '2079851475616104451 and the venting system. Targeted preventive measures need to be taken in different production scenarios.

Material Drying bubbleporeraw '2079851475616104451ventingvolatiles

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