Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

TPU drying 0.05% and defect rate

A

The drying red lines of TPU are clearly graded: general 0.05%, '2079851475616104452 0.02%, extrusion 0.02%; compressing drying time is opening the gate to the defect rate

Material Drying TPU；drying；0.05%；40%；grading

Q

TPU drying 0.02% red line

A

0.02% is the golden red line for TPU '2079851475616104452; drying to the moisture content specification rather than the time specification is the core proposition of professional manufacturers such as Foster; after confirming effectiveness, fix the parameters and practices into the work instructi...

Material Drying TPU；drying；0.02%；hydrolysis；molecular weight

Q

TPU product hydrolysis resistance selection

A

Hydrolysis resistance selection is the first decision for humid environment applications; polyether-type is the standard answer; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；hydrolysis resistance；polyether-type；polyester-type；humid；selection

Q

TPU product static dust attraction

A

Static electricity management relies on both environmental and material means; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later

Material Drying TPU；static electricity；dust attraction；ionized air；humidity；antistatic

Q

TPU cable sheath bubbles

A

Cable sheath bubbles affect insulation performance; drying and temperature stability are the quality foundation; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；cable；sheath；bubble；drying；temperature

Q

Processing differences between TPU and SEBS-based TPE

A

The processing characteristics of TPU and SEBS-based TPE differ significantly; moisture and shear sensitivity are the two starting points of TPU process design; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；SEBS；processing difference；moisture；shear；process

Q

TPU hydrolysis degradation

A

TPU hydrolysis is permanent damage; prevention outweighs remedy, and damp material is not recommended for high-performance products; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；hydrolysis；degradation；molecular weight；drying；storage

Q

TPU secondary moisture absorption after drying

A

TPU moisture management is a whole-process problem; exposure control after drying is as important as drying itself; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；secondary moisture absorption；drying；exposure time；closed conveying；hopper

Q

TPU product haze and transparency loss

A

The haze of transparent TPU is sensitive to process fluctuations; temperature and moisture management guarantee transparency; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；haze；transparent；degradation；additive；cooling

Q

TPU reduced toughness and brittleness

A

TPU toughness decline is mostly related to hydrolysis; moisture control is fundamental to maintaining polyurethane performance, and the recycled material ratio must be strictly limited; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPU；toughness；hydrolysis；recycled material；molecular weight；strength

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