Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

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PVA water-soluble film dissolution rate mismatch

PVA water-soluble film dissolution rate is determined by alcoholysis degree and thickness

Molding Process PVA water-soluble filmdissolution ratealcoholysis degreefilm thicknessformulation adjustment

PVA hydrolysis aging

Material Drying PVAhydrolysis agingpolar groupanti-hydrolysis stabilizerwaterproof coating

Periodic PVA surface corrugations

Injection Molding PVAsurface corrugationinjection stabilityequipment overhaulPID control

Large smoke in PVA processing

Material Analysis PVAprocessing smokevolatilesexhaust systemtemperature reduction

Poor PVA plasticization

Processing Machinery PVApoor plasticizationscrew compression ratioshear rateprocessing temperature

PVA internal inclusions

Production & Quality PVAinclusionraw material filtrationenvironmental cleanlinessrecycled material sorting

Insufficient strength of PVA water-soluble film

Molding Process PVA water-soluble filmtensile strengthalcoholysis degreefilm thicknessplasticizer

PVA hardness too low

Molding Process PVAlow hardnessrigid fillerplasticizercrystallization control

Insufficient PVA flatness

Molds & Tooling PVAflatnessshrinkage differenceuniform mold temperatureannealing treatment

PVA internal unmelted particles

Processing Machinery PVAunmelted particleplasticizing capacityprocessing temperaturescrew mixing

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