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Problem & Solution

Practical answers to common plastic material challenges

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11636 questions
Q
CEF surface blooming and exudation
A
Blooming is caused by low-molecular migration and exudation; selecting high-molecular-weight grades is fundamental
Production & Quality CEFbloominglow-molecular migrationhigh molecular weightlubricant exudation
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Q
CEF surface stress whitening
A
Stress whitening is caused by orientation and internal stress; reducing orientation and annealing are the key
Molding Process CEFstress whiteningorientation stressannealing treatmentstress concentration
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Q
CEF thermal aging fast
A
Thermal aging is caused by thermal oxidation; improving the antioxidant system is the key
Material Analysis CEFthermal agingthermal oxidationantioxidanthigh molecular weight
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Q
CEF mixing insufficient
A
Insufficient mixing is caused by improper screw design; increasing the mixing section is the key
Processing Machinery CEFinsufficient mixingscrew mixing sectionkneading blockside feeding
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Q
CEF fatigue resistance poor
A
Poor fatigue resistance is caused by insufficient recovery and fast crack propagation; increasing crosslinking is the key
Molds & Tooling CEFfatigue resistancecrosslinking degreemolecular weightstress concentration
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Q
CEF surface color difference obvious
A
Color difference is caused by uneven dispersion and orientation; masterbatch method and stable processing are the key
Injection Molding CEFcolor differencecolor masterbatch dispersionpigment orientationtemperature stability
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Q
CEF length out of tolerance
A
Length out of tolerance is caused by unstable shrinkage rate; accurate shrinkage compensation is the key
Molds & Tooling CEFlength out of toleranceshrinkage ratemold compensationsufficient cooling
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Q
CEF surface orange peel texture
A
Orange peel texture is caused by rapid cooling and solidification; increasing the mold temperature and holding pressure are the key
Injection Molding CEForange peel texturemold temperatureholding pressuresurface solidification
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Q
CEF injection product transparency low
A
The transparency of CEF is affected by the esterification degree and crystallization scattering
Injection Molding CEF injectiontransparencyhazeesterification degreenucleating agent
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Q
CEF vacuum section material spitting
A
Material spitting is caused by low melt viscosity; reducing temperature and adding a baffle are the key
Extrusion & Post CEFvacuum section material spittingmelt viscositytemperature reductionvent baffle
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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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