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Poor interfacial bonding between EVA and filler

Material Analysis EVA filler interfacial bonding coupling agent compatibilizer filler dispersion

EVA extrusion melt fracture

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

Bubbles in EVA injection molded thick walls

Material Drying EVA injection bubbles holding pressure thick wall products mold venting

Difficult demolding of EVA '2079851475616104452

Injection Molding EVA injection difficult demolding demolding draft adhesion ejection design

EMA product elliptical deformation

Elliptical deformation is caused by asymmetric demolding force; uniform ejection is key

Molds & Tooling EMA elliptical deformation symmetric ejection uniform cooling setting time

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

EMA internal black specks carbonization

Processing Machinery EMA internal black specks thermal carbonization screw cleaning temperature control

EMA product twist deformation

Twist deformation is caused by asymmetric cooling; symmetric cooling is key

Molds & Tooling EMA twist deformation symmetric cooling gate arrangement annealing

Low EMA flexural modulus

Material Analysis EMA flexural modulus rigid filler nucleating agent crystallinity

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