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Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

1343 preguntas
Q
MP poor weather resistance
A
poor weather resistance is caused by photo-oxidation; UV+HALS+antioxidant triple protection is key
Material Analysis MP weather resistance UV absorber HALS photo-oxidation
Q
poor interfacial bonding between MP 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 MP filler interfacial bonding coupling agent compatibilizer filler dispersion
Q
MP product dimensional change during long-term storage
A
dimensional change is caused by physical aging; annealing and slight crosslinking are measures to stabilize dimensions
Material Analysis MP dimensional stability physical aging annealing secondary crystallization slight crosslinking
Q
Glass Fibre flexural modulus too low
A
Low flexural modulus is caused by material softness and insufficient filler; adding rigid filler is key
Material Analysis Glass Fibreflexural modulusrigid fillernucleating agentcrystallinity
Q
Glass Fibre processing large smoke
A
Large smoke is caused by volatiles evaporation; cooling and exhaust are key
Material Analysis Glass Fibreprocessing smokevolatilesexhaust systemcooling
Q
Glass Fibre large creep deformation
A
Large creep is caused by elastomer nature; slight crosslinking and rigid filler are key
Material Analysis Glass Fibrecreepslight crosslinkinghigh molecular weightrigid filler
Q
Glass Fibre hardness too high
A
High hardness is caused by crystallization and filler; adjusting cooling and filler is key
Material Analysis Glass Fibrehigh hardnesscrystallinityfiller amountplasticizer
Q
Glass Fibre fast thermal aging
A
Thermal aging is caused by thermal oxidation; improving antioxidant system is key
Material Analysis Glass Fibrethermal agingthermal oxidationantioxidanthigh molecular weight
Q
Glass Fibre insufficient toughness, brittle fracture
A
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
Material Analysis Glass Fibreinsufficient toughnessmolecular weightcrosslinking controlcrystallization refinement
Q
Glass Fibre poor chemical resistance
A
Poor chemical resistance is caused by Glass Fibre chemical affinity; selecting chemical-resistant grade and coating are key
Material Analysis Glass Fibrechemical resistancechemical attackslight crosslinkingsurface coating
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