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Practical answers to common plastic material challenges

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POE surface periodic corrugation

Injection Molding POEsurface corrugationinjection stabilityequipment overhaulPID control

POE internal inclusions

Production & Quality POEinclusionsraw material filtrationenvironment cleanlinessrecycling sorting

POE hardness too low

Molding Process POEhardness lowrigid fillerplasticizercrystallization control

POE flatness insufficient

Molds & Tooling POEflatnessshrinkage differenceuniform mold temperatureannealing treatment

POE internal unmelted particles

Processing Machinery POEunmelted particlesplasticizing capacityprocessing temperaturescrew mixing

POE toughness insufficient, brittle fracture

Material Analysis POEtoughness insufficientmolecular weightcrosslinking controlcrystallization refinement

POE impact strength fluctuation large

Molding Process POEimpact fluctuationdispersed phase particle sizenucleating agentprocessing stability

POE internal shrinkage voids

Molds & Tooling POEshrinkage voidthick wallholding timegate freezing

POE toughened PP heat deflection temperature drops

Toughening is accompanied by HDT drop, requiring filler reinforcement compensation

Molding Process POE toughened PPHDT droptalc reinforcementnucleating agentcopolymer PP

POE creep deformation large

Large creep is caused by elastomer nature; slight crosslinking and rigid filler are key

Material Analysis POEcreepslight crosslinkinghigh molecular weightrigid filler

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