He aha te Resin Polyester Unsaturated?
07-31-2025
Ko te UPR he kapia whakamatao i hangaia ma te tauhohe i nga waikawa dicarboxylic haunga me te glycols. E mohiotia ana mo tona kaha ki te rongoa i roto i te kirihou pakeke, roa ka konatunatua ki te whakakorikori penei i te MEKP (methyl ethyl ketone peroxide). Ko tana ahua koretake ka taea e ia te hanga hononga-whakawhitinga kaha, ka pai ake
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