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Why plastic products will turn yellow?
 
PVC will turn yellow, and the product of the formula is relatively large
That white is oxidized, and some masterbatch surface is easy to oxidation, it is necessary for the masterbatch surface treatment.
In addition to the system of poor additives, impurities, etc., I think is mainly caused by aging, adding appropriate antioxidant system and anti-UV agent can improve PE, PP yellowing, but many hindered phenolic antioxidant system itself will bring To a slight yellowing, and some antioxidant and anti-UV agent there is resistance, so when used to be very careful. Adding a polymer lubricant, mainly in the machine wall to form a flowable polymer fluoropolymer film, to improve the extrusion performance of polyolefin resin, extrusion pressure and processing temperature, improve product quality, production capacity, reduce Production costs, reduce or eliminate melt rupture, reduce scrap rate.
Date: 2017/8/21 Read:485times
 
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