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Extrusion & Post 8 views

Melt Viscosity Far Higher Than PVC

Problem Phenomenon
Melt flowability is extremely poor during injection and extrusion
Cause Analysis
High chlorine content leads to stronger intermolecular forces
Solution
Raise processing temperature by 10-15C and enlarge gates and runners
Key Takeaway
CPVC's high viscosity is the biggest processing challenge
CPVC viscosity

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