Problem & Solution

Practical answers to common plastic material challenges

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EVOH Surface Stress Whitening

Molding Process EVOHstress whiteningorientation stressannealingstress concentration

Large EVOH Compression Set

Molding Process EVOHcompression setcrosslinking degreeelastic recoveryreinforcing filler

Coarse Internal Crystallization of EVOH

Molding Process EVOHcoarse crystallizationspherulite refinementnucleating agentcooling rate

EVOH extruded film thick edges and thin middle

Molding Process EVOH film thickness distribution coat-hanger die gap fine-tuning edge effect

EVA foam surface large bubbles

Molding Process EVA foam large bubbles AC agglomeration foaming temperature uniform crosslinking

EVA foam open cell content is high

Molding Process EVA foam open cell content cell wall rupture crosslinking degree foaming temperature

EVA film heat-seal strength is insufficient

Insufficient EVA heat sealing requires increasing temperature, time, and pressure

Molding Process EVA film heat-seal strength heat-sealing temperature sealing time pressure

EVA hardness is too low

Molding Process EVA low hardness rigid filler plasticizer crystallization control

EVA impact strength fluctuates greatly

Molding Process EVA impact fluctuation dispersed phase particle size nucleating agent processing stability

EVA foam locally unfoamed

Molding Process EVA foam local unfoamed blowing agent dispersion mold temperature control uniform crosslinking

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