Material Analysis
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Unsatisfactory toughening effect of modified styrene-butadiene copolymer
Fenómeno del problema
The toughening effect of modified styrene-butadiene copolymer is unsatisfactory, and the impact strength improvement is below the expected target
Análisis de la causa
Toughening agent addition is insufficient or unevenly dispersed
The toughening agent has poor compatibility with the matrix and weak interface bonding
Improper processing temperature (deviating from 180-220°C); the toughening agent degrades or is poorly dispersed
Insufficient mixing; the toughening agent agglomerates
Toughening agent particle size does not match
Solución
Increase toughening agent addition to a reasonable proportion
Select a toughening agent with good compatibility with styrene-butadiene copolymer
Reasonably set processing temperature within the 180-220°C range
Strengthen mixing to ensure uniform dispersion
Select a toughening agent with suitable particle size
Conclusión clave
Toughening effect needs to be addressed from addition amount, compatibility and dispersion
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