المشاكل والحلول

إجابات عملية على التحديات الشائعة في مواد البلاستيك

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Large compression set of PU

Molding Process PU compression set crosslinking degree elastic recovery reinforcing filler

Surface stress whitening of PU

Molding Process PU stress whitening orientation stress annealing treatment stress concentration

High density of PU rigid foam

PU rigid foam density is determined by blowing agent dosage and catalyst

Molding Process PU rigid foam high density blowing agent isocyanate index catalyst

Coarse internal crystallization of PU

Molding Process PU coarse crystallization spherulite refinement nucleating agent cooling rate

PU Extruded Film Thick Edges and Thin Middle

Molding Process PU filmthickness distributioncoat-hanger diegap fine-tuningedge effect

EVOH Hardness Too Low

Molding Process EVOHlow hardnessrigid fillerplasticizercrystallization control

Large EVOH Impact Strength Fluctuation

Molding Process EVOHimpact fluctuationdispersed phase particle sizenucleating agentprocessing stability

Poor EVOH Antistatic Effect

Molding Process EVOHantistaticantistatic agentsurface resistancemigration rate

Poor EVOH Chemical Resistance

Molding Process EVOHchemical resistancechemical attackslight crosslinkingsurface coating

EVOH Processing Temperature Fluctuation

Molding Process EVOHtemperature fluctuationPID tuningheater bandthermocouple

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