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Yaygın plastik malzeme zorluklarına pratik yanıtlar

Makalelere Göz At →
11636 soru
Q
Insufficient PVA toughness, brittle fracture
A
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is the key
Material Analysis PVAinsufficient toughnessmolecular weightcrosslinking controlcrystallization refinement
16 görüntüleme
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Q
Large fluctuation of PVA impact strength
A
Impact fluctuation is caused by unstable dispersed phase and crystallization; stable processing is the key
Molding Process PVAimpact fluctuationdispersed phase particle sizenucleating agentprocessing stability
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Q
Poor PVA chemical resistance
A
Poor chemical resistance is caused by PVA chemical affinity; selecting chemical-resistant grade and coating are the key
Material Analysis PVAchemical resistancechemical attackslight crosslinkingsurface coating
16 görüntüleme
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Q
Large odor in PVA processing
A
Large odor is caused by PVA decomposition and volatilization; temperature control and ventilation are the key
Material Analysis PVAprocessing odorvolatilesventilation and exhausttemperature control
16 görüntüleme
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Q
PVA internal shrinkage voids
A
Shrinkage voids are caused by thick-wall shrinkage and insufficient holding; extending holding is the key
Molds & Tooling PVAshrinkage voidthick wallholding timegate freezing
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Q
Large PVA creep deformation
A
Large creep is caused by the elastomer nature; slight crosslinking and rigid filler are the key
Material Analysis PVAcreepslight crosslinkinghigh molecular weightrigid filler
16 görüntüleme
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Q
Poor PVA antistatic effect
A
Poor antistatic effect is caused by insufficient addition; increasing the antistatic agent is the key
Molding Process PVAantistaticantistatic agentsurface resistancemigration rate
16 görüntüleme
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Q
PVA processing temperature fluctuation
A
Temperature fluctuation is caused by an improper temperature control system; PID tuning and heater band replacement are the key
Material Analysis PVAtemperature fluctuationPID tuningheater bandthermocouple
16 görüntüleme
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Q
Insufficient PVA tensile strength
A
Insufficient tensile strength is caused by molecular weight and poor interface; selecting a high MW grade is the key
Material Analysis PVAtensile strengthmolecular weightcoupling agentorientation control
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Q
PVA screw slipping
A
Screw slipping is caused by premature melting; lowering the feed section temperature is the key
Extrusion & Post PVAscrew slippingfeed section temperaturepremature meltingflight deepening
15 görüntüleme
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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382
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