Today's KNOWLEDGE Share
💡 “Most polymer QC decisions miss the hidden threats until your customers notice.”
Quality Control is not just about running instruments; it’s about capturing the right insight at the right time.
In many polymer production lines, over 90% of QC decisions rely solely on TGA. While powerful, this single tool mindset can miss subtle polymer structural changes, which often only appear as customer complaints.
This is where DSC makes the difference. Thermal transitions and structural drifts may leave mass unchanged. TGA stays silent while DSC detects early warning signals long before failures reach the market.
🔍 Choosing the right tool depends on your Critical-to-Quality (CTQ) attributes:
1️⃣ TGA → Mass defines quality
Example: NBR latex QC: Ensuring 45 ± 2 wt% total solids (polymer + stabilizers vs. water) keeps viscosity and film formation consistent in glove-dipping applications.
2️⃣ DSC → Structure defines performance
Example: Pharmaceutical tablets: Detecting polymorphic transitions that alter dissolution rates, even with identical composition.
🌱 For sustainable QC systems:
Budget for both instruments, but use them strategically, one for routine control, the other for verification.
🚀 For organizations pursuing excellence:
Invest in simultaneous TGA-DSC (STA): one experiment, two perfectly correlated datasets, mass change and thermal behavior captured in real time. Not redundancy, it’s insight density.
Quality failures rarely come from what we measured wrong; they come from what we never measured at all.
🧰 What tools are you using in your QC process, and how have they impacted your results❓
Insight credit: Dr. Leila E. Scientist & Researcher | Chemical Process & Technology
source : Peyman Ezzati
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