Tanyun Ammonium Perchlorate

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What is the cause of PVB yellowing at high temperature and how to deal with it?

The main cause of high temperature yellowing is oxidation. The internal cause is residual shrinkage and free acid. So it is necessary to add radical trapping agent. Adding antioxidant 1010 and UV absorbent to PVB can increase the anti-yellowing temperature.



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