문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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EVA shrinkage rate is unstable

Material Analysis EVA shrinkage rate batch difference temperature control stability crystallization consistency

EVA foam density is too high

EVA foam density is determined by the blowing agent, VA content, and crosslinking degree

Material Analysis EVA foam high density AC blowing agent VA content DCP crosslinking

Dimensional change of EVA products during long-term storage

Material Analysis EVA dimensional stability physical aging annealing secondary crystallization slight crosslinking

Poor interfacial bonding between EVA and filler

Material Analysis EVA filler interfacial bonding coupling agent compatibilizer filler dispersion

Low EMA flexural modulus

Material Analysis EMA flexural modulus rigid filler nucleating agent crystallinity

Heavy EMA processing smoke

Material Analysis EMA processing smoke volatiles exhaust system temperature reduction

Insufficient EMA toughness with brittle fracture

Material Analysis EMA insufficient toughness molecular weight crosslinking control crystallization refinement

Poor EMA chemical resistance

Material Analysis EMA chemical resistance chemical attack slight crosslinking surface coating

Strong EMA processing odor

Material Analysis EMA processing odor volatiles ventilation and exhaust temperature control

Large EMA creep deformation

Large creep is caused by elastomer nature; slight crosslinking and rigid filler are key

Material Analysis EMA creep slight crosslinking high molecular weight rigid filler

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