Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PBAT melt index too high and blown film unstable

A

PBAT melt index management is the prerequisite for blown film stability; chain extender is the adjustment means; degradation prevention starts from the source.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; melt index; too high; film bubble; molecular weight; chain extender

Q

PBAT poor compatibility with PLA

A

PBAT/PLA compatibility requires chain extender compatibilization; temperature management reduces degradation; compatibilization and chain extension are dual functions.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PBAT; PLA; compatibility; chain extender; compatibilization; phase separation

Q

PBAT poor filler compatibility

A

PBAT filler compatibility is the core of modification technology; coupling agent modification is the standard method; the 15% upper limit is the performance guarantee line.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PBAT; filler; compatibility; coupling agent; dispersion; 15%

Q

PBAT excessive cost

A

PBAT cost is the main obstacle to industrialization; high filling of filler and thinning are effective paths; multi-layer structure is the technical cost-reduction direction.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PBAT; cost; high; filler; thinning; multi-layer

Q

PBAT low strength

A

Blending modification is the main path for PBAT strength improvement; PLA blending is the industry standard solution; multi-layer structure balances performance and cost.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PBAT; strength; low; PLA; chain extender; blending

Q

PBAT hydrolysis and short shelf life

A

PBAT hydrolysis is an inherent weakness of ester-based materials; terminal carboxyl content is a core quality indicator; moisture-proof management runs through storage and use.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying PBAT; hydrolysis; terminal carboxyl; shelf life; ester group; moisture protection

Q

PBAT low heat seal strength

A

PBAT heat seal performance is affected by filler and thickness; the process window requires fine management; strength testing is the acceptance basis.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PBAT; heat seal; strength; filler; thickness; window

Q

PBAT film bubble swaying

A

Air ring uniformity is the foundation of PBAT film bubble stability; ambient airflow is often overlooked; the stabilization cage is a low-cost and effective device.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; film bubble; swaying; air ring; internal cooling; stabilization cage

Q

PBAT wrinkles and slackness

A

Cooling and tension are the main causes of PBAT wrinkles; soft materials require higher mechanical precision; taper tension is the standard winding technology.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PBAT; wrinkle; slackness; winding; tension; A-frame

Q

PBAT gel particles and fish eyes

A

Raw material quality and compatibility are the key to PBAT gel particles; screen management is a low-cost defense line; the use of recycled material must be carefully evaluated.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PBAT; gel particle; fish eye; gel; screen; compatibility

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