Problem & Solution

Practical answers to common plastic material challenges

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Q

Transparency of PLA Products

A

PLA transparency relies on maintaining the amorphous state.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA; transparency; haze; crystallization; amorphous; degradation

Q

Food Contact of PLA Products

A

Food-grade PLA supply chain management.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA; food contact; compliance; migration; grade; traceability

Q

Composting Degradation Management of PLA Products

A

PLA degradation is conditional; claims and verification must match.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA; degradation; composting; claims; verification; conditions

Q

PLA product dimensional stability

A

Dimensional stability relies on crystallization management.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;dimension;crystallization;aging;environment;stability

Q

PLA product black specks

A

PLA has a high black speck risk; machine cleaning frequency must be increased.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;black speck;carbonization;cleaning;dead corner;residence

Q

PLA product discoloration

A

Discoloration distinguishes between degradation and color masterbatch.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;discoloration;yellowing;color masterbatch;degradation;testing

Q

PLA product degradation odor

A

Odor is a signal of degradation; it can be controlled by thermal management.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;odor;degradation;lactic acid;temperature;drying

Q

PLA film brittle tearing

A

PLA film relies on plasticization and blending to improve toughness; bio-based toughening agents maintain degradability.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PLA;film;brittleness;plasticizer;blending;stretching

Q

PLA product weld lines

A

Weld lines rely on temperature and gate management.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;weld line;temperature;gate;convergence;overflow well

Q

PLA product sink marks

A

Sink marks follow the feeding mechanism.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PLA;sink mark;holding pressure;wall thickness;gate;feeding

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