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Narrow processing temperature window of high impact polystyrene MSAN products

MSAN's narrow processing temperature window requires precise temperature control.

Processing Machinery temperature windowMSANtemperature control accuracyscrew rotation speedthermal stability

Quality fluctuation caused by regrind use of high impact polystyrene

Regrind use needs to control ratio and number of times; classified management is key.

Material Analysis regrindquality fluctuationmolecular weight decreaseregrind ratioclassified management

Cracking caused by internal stress of high impact polystyrene products

Injection Molding internal stressstress crackinginjection speedmold temperatureuniform wall thickness

Dimensional change with temperature/thermal expansion of high impact polystyrene products

Production & Quality thermal expansiondimensional changetemperature effectthermal expansion coefficientdesign compensation

Decreased transparency/yellowing of high impact polystyrene SAN/AS products

SAN transparency decrease is caused by thermal degradation or microbubbles.

Material Drying transparencyyellowingSANthermal degradationraw '2079851475616104451

Storage cracking/delayed cracking of high impact polystyrene PS products

PS delayed cracking is caused by slow release of residual stress.

Molds & Tooling delayed crackingresidual stressannealing treatmentuniform wall thicknessmold temperature

Rubber migration/exudation of high impact polystyrene HIPS products

HIPS rubber exudation is caused by compatibility and temperature.

Extrusion & Post rubber migrationexudationHIPScompatibilityprocessing temperature

Performance decline caused by thermal degradation of high impact polystyrene material

Processing Machinery thermal degradationmolecular weight decreasebarrel temperatureresidence timescrew rotation speed

Shrinkage rate prediction deviation of high impact polystyrene products

Molds & Tooling shrinkage ratemold designwall thickness effectflow directiontrial mold verification

Creep deformation of high impact polystyrene products

Creep is the slow deformation of amorphous materials under continuous load.

Material Analysis creepcontinuous loadwall thickness designmolecular weightglass fiber reinforcement

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