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1343 soru
Q
EMA Product Dimensional Change During Long-Term Storage
A
Dimensional change is caused by physical aging; annealing treatment and slight crosslinking are measures to stabilize dimensions
Material Analysis EMA dimensional stability physical aging annealing secondary crystallization slight crosslinking
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Q
EMA Poor Interfacial Bonding with Filler
A
The elastomer-filler interface requires the dual action of coupling agent and compatibilizer, otherwise the filler has a negative effect
Material Analysis EMA filler interfacial bonding coupling agent compatibilizer filler dispersion
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Q
EEA Low Flexural Modulus
A
Low flexural modulus is caused by material softness and insufficient filler; adding rigid filler is key
Material Analysis EEA flexural modulus rigid filler nucleating agent crystallinity
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Q
EEA Hydrolytic Aging
A
Hydrolytic aging is caused by the water sensitivity of polar groups; selecting low-polarity grades is key
Material Analysis EEA hydrolytic aging polar groups anti-hydrolysis stabilizer waterproof coating
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Q
EEA Heavy Processing Smoke
A
Heavy smoke is caused by evaporation of volatiles; lowering temperature and exhausting are key
Material Analysis EEA processing smoke volatiles exhaust system temperature reduction
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Q
EEA Insufficient Toughness, Brittle Fracture
A
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
Material Analysis EEA insufficient toughness molecular weight crosslinking control crystallization refinement
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Q
EEA Poor Chemical Resistance
A
Poor chemical resistance is caused by EEA chemical affinity; selecting chemical-resistant grades and coating are key
Material Analysis EEA chemical resistance chemical attack slight crosslinking surface coating
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Q
EEA Strong Processing Odor
A
Strong odor is caused by EEA decomposition and volatilization; temperature control and ventilation are key
Material Analysis EEA processing odor volatiles ventilation and exhaust temperature control
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Q
EEA Large Creep Deformation
A
Large creep is caused by the elastomer nature; slight crosslinking and rigid fillers are key
Material Analysis EEA creep slight crosslinking high molecular weight rigid filler
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Q
EEA Processing Temperature Fluctuation
A
Temperature fluctuation is caused by improper temperature control system; PID tuning and heater band replacement are key
Material Analysis EEA temperature fluctuation PID tuning heater band thermocouple
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