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发表于 2010-9-10 17:31:11
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BHT type has been used as antioxidant , however,Shortly after dimerizaiton by heat and light, they tend to turn into yellowish color.These days, BHT is seldom used for antioxidant due to its disadvantage as in color change by heat and light.
+ T7 k1 @0 `" u$ t$ Z+ }% n To overcome this, other antioxidants with longer molecular weight have been used like as Stilbene quinone.
2 i! ~: a; v0 j! ZNR,NBR 乳胶工业通常选用BHT作为防老剂, 但是受热易变黄,所以最近用更大分子量的越来越多 如Stilbene quinone。 |
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