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Problem & Solution

Practical answers to common plastic material challenges

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11636 questions
Q
Glass Fibre extrusion melt fracture
Q
Glass Fibre '2079851475616104452 difficult demolding
A
Difficult demolding is caused by adhesion and insufficient mold design; increasing draft angle is the fundamental measure
Injection Molding Glass Fibre injectiondifficult demoldingdraft angleadhesionejection design
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Q
Glass Fibre blended with incompatible resin delaminates
A
Blends with large polarity difference need reactive compatibilizer to form chemical bonding at the interface to solve
Extrusion & Post Glass Fibre blend delaminationpolarity differenceGlass Fibre-g-MAHreactive compatibilizationinterfacial bonding
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Q
Poor interfacial bonding between Glass Fibre and filler
A
The elastomer/filler interface needs the dual action of coupling agent and compatibilizer, otherwise the filler plays a negative effect
Material Analysis Glass Fibre fillerinterfacial bondingcoupling agentcompatibilizerfiller dispersion
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Q
DSTDP uneven dispersion causes local insufficient antioxidant
A
DSTDP uneven dispersion is caused by direct dry powder addition; masterbatch method is key
Material Drying DSTDP dispersionmasterbatch methoddry powder additiontwin-screw blendingantioxidant uniformity
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Q
DSTDP product elliptical deformation
A
Elliptical deformation is caused by asymmetric demolding force; uniform ejection is key
Molds & Tooling DSTDPelliptical deformationsymmetric ejectionuniform coolingsetting time
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Q
DSTDP surface snakeskin pattern
A
Snakeskin pattern is caused by low-temperature extrusion and elastic recovery; raising temperature and reducing speed are key
Extrusion & Post DSTDPsnakeskin patternextrusion temperatureelastic recoverydie temperature control
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Q
DSTDP product twisting deformation
A
Twisting deformation is caused by asymmetric cooling; symmetric cooling is key
Molds & Tooling DSTDPtwisting deformationsymmetric coolinggate arrangementannealing
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Q
DSTDP internal delamination cracking
A
Internal delamination is caused by poor interface and shrinkage difference; compatibilizer and uniform cooling are key
Extrusion & Post DSTDPinternal delaminationinterfacial bondingcompatibilizeruniform cooling
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Q
DSTDP internal black specks carbonization
A
Black specks are caused by thermal carbonization and carbon buildup; temperature reduction and regular cleaning are key
Processing Machinery DSTDPinternal black specksthermal carbonizationscrew cleaningtemperature control
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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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