Menú
Materiales Maquinaria
Perspectivas
Artículos Vídeos Problema y solución
About
Acerca de Chembull Socios de medios
Contáctenos
Idioma
EnglishالعربيةPortuguêsEspañolDeutschTürkçe한국어

Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

11636 preguntas
Q
CEF injection warpage deformation
A
Warpage is caused by shrinkage differences and orientation stress; uniform mold temperature and holding pressure are the key
Injection Molding CEF injectionwarpageshrinkage rateholding pressureannealing treatment
Q
CEF injection gate freezing too early
A
Early gate freezing is caused by small gate and low temperature; enlarging the gate and increasing the temperature are the fundamental measures
Injection Molding CEF injectiongate freezingholding pressure transmissiongate sizemold temperature
Q
CEF '2079851475616104452 mold venting burnt
Q
CEF extrusion die hang-up and carbon deposits
A
Die carbon deposits are caused by thermal oxidation and untimely cleaning, PE flushing and timely cleaning are key
Extrusion & Post CEF extrusiondie carbon depositPE flushingresidence areathermal oxidation
Q
CEF blended with incompatible resin delaminates
A
Blends with large polarity differences need reactive compatibilizers to form chemical bonding at the interface to solve
Extrusion & Post CEF blend delaminationpolarity differenceCEF-g-MAHreactive compatibilizationinterfacial bonding
Q
CEF extrusion pelletizing connected pellets
A
Connected pellets are caused by elastic recovery and low-temperature pelletizing, high-temperature water cutting and fast cutting are key
Extrusion & Post CEF pelletizingconnected pelletspelletizing water temperaturecutter speedelastic recovery
Q
CEF extrusion '2079851475616104457 parison sag severe
A
Parison sag is caused by low melt strength, micro-crosslinking and wall thickness control are key
Blow Molding CEF '2079851475616104457parison sagmelt strengthmicro-crosslinkingwall thickness control
Q
CEF products yellow after processing
A
Yellowing is caused by thermal-photo oxidation and metal catalysis, improving the antioxidant system and UV absorber is key
Production & Quality CEF yellowingthermal oxidationantioxidantUV absorbermetal catalysis
Q
CEF product dimensional change during long-term storage
A
Dimensional change is caused by physical aging, annealing treatment and micro-crosslinking are measures to stabilize dimensions
Material Analysis CEF dimensional stabilityphysical agingannealingsecondary crystallizationmicro-crosslinking
Q
Poor interfacial bonding between CEF and filler
A
The elastomer-filler interface requires the dual action of coupling agent and compatibilizer, otherwise the filler plays a negative effect
Material Analysis CEF fillerinterfacial bondingcoupling agentcompatibilizerfiller dispersion
ChemAI