PMMA Regrind Problems

Problem Phenomenon

Regrind parts have poor transparency and are brittle.

Cause Analysis

Regrind thermal history + moisture absorption; fine powder from crushed material.

Solution

①Ratio ≤20%; ②Re-dry; ③Optical parts prohibit regrind.

Key Takeaway

PMMA regrind = prohibited in transparent parts.

PMMA; regrind; transparency; embrittlement

Was this helpful?

0 people found this helpful