Material Drying
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DSTDP uneven dispersion causes local insufficient antioxidant
Problem Phenomenon
Plastic product locally yellows and degrades
Cause Analysis
DSTDP dry powder directly added, dispersion uneven, local protection insufficient
Solution
1) DSTDP masterbatch method addition ensures uniform dispersion; 2) twin-screw high-shear blending; 3) extend mixing time
Key Takeaway
DSTDP uneven dispersion is caused by direct dry powder addition; masterbatch method is key
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