Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Excessive thermal shrinkage of EVA film

Extrusion & Post EVA film thermal shrinkage orientation release annealing treatment biaxial stretching

Unstable dimensions in EVA extrusion

Extrusion & Post EVA extrusion dimensional stability feeding control temperature PID haul-off synchronization

Die deposit and carbon buildup in EVA extrusion

Extrusion & Post EVA extrusion die carbon buildup PE flushing stagnation zone thermal oxidation

Delamination of EVA blended with incompatible resins

Extrusion & Post EVA blend delamination polarity difference EVA-g-MAH reactive compatibilization interfacial bonding

Connected pellets in EVA extrusion pelletizing

Extrusion & Post EVA pelletizing connected pellets pelletizing water temperature cutter speed elastic recovery

EVA extrusion melt fracture

Extrusion & Post EVA extrusion melt fracture elastic recovery die L/D extrusion rate

EMA internal delamination cracking

Extrusion & Post EMA internal delamination interfacial bonding compatibilizer uniform cooling

EMA surface snakeskin texture

Extrusion & Post EMA snakeskin texture extrusion temperature elastic recovery die temperature control

Insufficient EMA transparency

EMA transparency is affected by MMA content and crystallization scattering

Extrusion & Post EMA film transparency haze MMA content nucleating agent

EMA screw slippage

Screw slippage is caused by premature melting; lowering feed section temperature is key

Extrusion & Post EMA screw slippage feed section temperature premature melting flight deepening

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