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문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

1343 질문
Q
Low EAA elongation at break
A
Low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation is key
Material Analysis EAAelongation at breakmolecular weightorientation controlcrosslinking degree
Q
Fast EAA thermal aging
A
Thermal aging is caused by thermal oxidation; improving the antioxidant system is key
Material Analysis EAAthermal agingthermal oxidationantioxidanthigh molecular weight
Q
EAA flame retardant effect not up to standard
Q
Fast UV aging of EAA
A
Fast UV aging is caused by photo-oxidation; UV absorber and HALS are the key
Material Analysis EAA UV aging UV absorber HALS radical scavenging
Q
Unstable shrinkage of EAA
A
Unstable shrinkage is caused by batch differences and temperature fluctuations; raw material and temperature control are the key
Material Analysis EAA shrinkage batch difference temperature control stability crystallization consistency
Q
Poor weather resistance of EAA
A
Poor weather resistance is caused by photo-oxidation; UV+HALS+antioxidant triple protection is the key
Material Analysis EAA weather resistance UV absorber HALS photo-oxidation
Q
Dimensional change of EAA products during long-term storage
A
Dimensional change is caused by physical aging; annealing treatment and micro-crosslinking are measures to stabilize dimensions
Material Analysis EAA dimensional stability physical aging annealing secondary crystallization micro-crosslinking
Q
Poor interfacial bonding between EAA and filler
A
The elastomer-filler interface requires the dual action of coupling agent and compatibilizer, otherwise the filler has a negative effect
Material Analysis EAA filler interfacial bonding coupling agent compatibilizer filler dispersion
Q
Poor compatibility of blend components
A
Determines morphology and performance
Material Analysis PVC compatibility
Q
Flowability deteriorates after filling
A
At the cost of sacrificing flowability
Material Analysis PVC filling
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