What are the technical requirements for resin quality in high-grade transparent PVC sheets?
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What are the technical requirements for resin quality in high-grade transparent PVC sheets? Such as impurities, thermal stability, plasticity, oil absorption, etc.
Impurities are definitely not acceptable; the processing temperature for transparent PVC is relatively high, so it’s important to choose the right stabilizer. Additionally, the molecular weight distribution should be as narrow as possible.
Since it is transparent, the refractive index of the resin must be similar.
The right tin-based stabilizers have been chosen, as well as the appropriate processing aids and impact modifiers; transparent sheets are too delicate……
The stabilizer must be chosen carefully; in addition, the molecular weight distribution should be as narrow as possible, and the refractive index also needs to be well controlled.