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إجابات عملية على التحديات الشائعة في مواد البلاستيك

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Chemical resistance of cellulose acetate butyrate changes after modification

Material Analysis chemical resistanceformulationtoughening agentflame retardant

Screw parameters not matching the material, poor extrusion quality

The extrusion screw needs to match the material

Extrusion & Post extrusion screwcompression ratioL/D ratiocellulose acetate butyrate

Extruded pipe bent, not straight

Pipe bending needs to be addressed from uniform cooling and alignment

Extrusion & Post pipe bendingcooling uniformityhaul-off alignment

Shot weight fluctuation makes product dimensions and weight uneven

Metering requires an intact check ring and stable stroke

Material Drying meteringcheck ringscrew strokeV-P switchover

Mixing temperature, time, and equipment selection affect modification effect

Modification process needs to be adjusted according to formulation characteristics

Processing Machinery modification processmixingdispersiontemperature

Modified cellulose acetate butyrate flame retardant rating not up to standard

Material Analysis flame retardancyflame retardantcompatibilityflame retardant rating

Product deforms on demolding or dimensions unstable

Cooling time needs to be reasonably set according to material and wall thickness

Molds & Tooling cooling timedemoldingsolidificationwater channels

Product has jetting, weld lines, or surface waviness defects

Injection speed needs multi-stage control to adapt to the cavity

Injection Molding injection speedmulti-stage injectionspeed control

Hazy whitening appears on the surface of CAB transparent products

CAB whitening needs to be addressed from drying and temperature

Material Drying CAB whiteningmoisturetransparencydrying

Mismatch of testing methods and standards leads to wrong quality judgment

Testing needs to be conducted under correct moisture content conditions

Material Drying quality inspectionmoisture contentconditioningPA testing

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