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How Is Triethylene Glycol Di-2-Ethylhexanoate (TEG-2EH) Produced From 2-Ethylhexanoic Acid?
Every metric ton of polyvinyl butyral (PVB) interlayer film carries roughly 260 kg of a single plasticizer: triethylene glycol di-2-ethylhexanoate, or TEG-2EH. TEG-2EH (CAS 94-28-0, also sold as 3G8) is produced from 2-ethylhexanoic acid in three stages: esterification with triethylene glycol, vacuum recovery of the excess acid, and refining to spec. The consumption figure and…
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