Plasticizers di dwuma titiriw wɔ plastic adwumayɛ mu nkɔso ho nkuran, titiriw polyvinyl chloride adwumayɛ. Nea edidi so yi yɛ nneɛma a ɛka plasticizers.
Nea edi kan no, nneɛma a ɛka plasticizer (crude ester) flash point Dibasic acid plasticizer no nyinaa ne molecule mu duru. molecule mu duru no yɛ kɛse na flash point no nso yɛ kɛse: nanso molecular weight no yɛ kɛse dodo, na plasticizer no nni nsɛ yiye sɛ ɛne PVC{1}} hyia sɛ molecule mu duru no nso sua a, flash point no yɛ low; Sɛ molecule mu duru no sua dodo a, plasticization effect no bɛyɛ papa na ɛrenyɛ den.
Nea ɛto so abien, nneɛma a ɛka plasticizer (primary ester) acid bo a ɛwɔ hɔ no wɔ hɔ a ɛnyɛ adwuma wɔ acid acid a ɛnyɛ adwuma ne wɔn monoesters (acid esters), acidic catalysts ne wɔn esters, nsu no nhohoro koraa na residual acid ne off acids anaasɛ monoesters a ɛba esiane ɔhyew mu nsonsonoe nti bere a nsa no yɛ adwuma no, a ɛka acid value a ɛwɔ no so non{