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Problem & Solution

Practical answers to common plastic material challenges

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11636 questions
Q
POE processing temperature fluctuation
Q
POE tensile strength insufficient
A
Insufficient tensile strength is caused by molecular weight and poor interface; selecting high MW grade is key
Material Analysis POEtensile strengthmolecular weightcoupling agentorientation control
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Q
POE dimension changes greatly with temperature
A
Dimensional temperature sensitivity is caused by large thermal expansion coefficient; adding filler and annealing are key
Extrusion & Post POEdimensional temperature sensitivitythermal expansion coefficientrigid fillerannealing treatment
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Q
POE hardness too high
A
High hardness is caused by crystallization and filler; adjusting cooling and filler is key
Material Analysis POEhardness highcrystallinityfiller amountplasticizer
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Q
POE surface tiger skin pattern
A
Tiger skin pattern is caused by unstable injection front; multi-stage injection and high mold temperature are key
Injection Molding POEtiger skin patterninjection speedmulti-stage injectionmold temperature control
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Q
POE elongation at break low
A
Low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation are key
Material Analysis POEelongation at breakmolecular weightorientation controlcrosslinking degree
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Q
POE compression set large
A
Large compression set is caused by insufficient crosslinking; increasing crosslinking degree is key
Molding Process POEcompression setcrosslinking degreeelastic recoveryreinforcing filler
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Q
POE surface blooming exudation
A
Blooming is caused by low molecular migration and exudation; selecting high molecular weight grade is fundamental
Material Analysis POEbloominglow molecular migrationhigh molecular weightlubricant exudation
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Q
POE surface stress whitening
A
Stress whitening is caused by orientation and internal stress; reducing orientation and annealing are key
Molding Process POEstress whiteningorientation stressannealing treatmentstress concentration
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Q
POE fatigue resistance poor
A
Poor fatigue resistance is caused by insufficient recovery and fast crack propagation; increasing crosslinking is key
Molds & Tooling POEfatigue resistancecrosslinking degreemolecular weightstress concentration
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All Topics 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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