Ama-Phenols avinjelwe nge-tert-butyl (x = i-tert-butyl) kanye ne-methyl (r = methyl ch3) endaweni ye-o-phenolic hydroxyl ye-phenolic hydroxyl ngezinga elithile, bese usheshisa inani lokuphendula kwe-antiolicy, ngaleyo ndlela enze isakhiwo esisha se-antioxidant siba nomphumela ongalindelekile. Lesi sakhiwo esisha se-Phenols Shenols antioxidant sibizwa ngokuthi ama-asymmetric avimbela ama-phenols antioxidant.
I-asymmetric ithikameze ukwakheka kwe-phenolicolic nge-tert-butyl group neqembu le-methyls e-hydroxyl ortho-isikhundla sanele ukuzivikela. I-asymmetric ithi i-antioxidant ye-phenolic, nge-2 - i-methyl - 6 - tertiary butyl phenol njenge-skeleton, hhayi kuphela izici ezijwayelekile ze-antioxidants ye-phenolic, kodwa futhi zixhumanisa ukuqina kokuqina kanye nokumelana nomphumela wokuqina. Ngakho-ke inokusebenza okusobala okuningana kunohlobo lwendabuko lwendabuko lwe-phenol evinjelwe, futhi ilungele izinhlelo zokusebenza ze-oxidation ezishisayo.
I-AN245, i-AN1790 (kanye ne-AN2777) ne-AO80 yilezi zinto ezintathu ezivame kakhulu ezivinjelwe ama-antioxidants, phakathi kwayo i-AN245 esetshenziswa kakhulu ngentengo ephansi.
I-245 ilungele ikakhulukazi ama-sterooobstructing antioxidants we-organic polymers. Njenge-antioxidant, isetshenziswa ekusebenzeni nasekusetshenzisweni kwesikhathi eside kokuqina okushisayo kwama-styrene polymers anjenge-hips, ama-mbs kanye ne-abs, amapulasitiki wobunjiniyela afana ne-POM ne-PA nePolyurethane. Kubuye kube yi-Cain Termetor esebenzayo kwinqubo yePVC Polymerization. Lo mkhiqizo awunamthelela ekuphenduleni kwe-polymer, esetshenziselwa umthelela omkhulu we-polystyrene, i-polyvinyl chloride, ingangezwa ku-monomer ngaphambi kwe-polymerization.
Ngaphezu kwesimo sokuhlinzekwa kwe-powder ejwayelekile, singanikeza okuqukethwe okungu-35% kokuhlakazeka-AN245DW. Ngemuva kweminyaka eminingi yesipiliyoni sokukhiqiza, uketshezi lokuhlakazeka olukhiqizwayo futhi oluhlinzekwe yinkampani yethu akulula ukuluhlukanisa, futhi kulula ukusakazeka kune-antioxidant esetshenzisiwe kwinqubo ye-PVC polymerization.
Uhlala wamukelekile ukuxhumana nathi ngemibuzo!
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Isikhathi sePosi: Sep-13-2021