Zomwe zimalepheretsa phenols ndi tert-butyl (X = tert-butyl) ndi methyl (R = methyl CH3) pamalo o olepheretsa gulu la phenolic hydroxyl zitha kufooketsa cholepheretsa chomwe chimalepheretsa gulu la phenolic hydroxyl pamlingo wina, ndi imathandizira mlingo wa antioxidant anachita, motero kupanga dongosolo latsopano antioxidant kusewera zotsatira mosayembekezereka. Kapangidwe katsopano kameneka kamaletsa phenols antioxidant kamatchedwa asymmetric kolepheretsa phenols antioxidant.
Mapangidwe osakanikirana a phenolic omwe ali ndi gulu la tert-butyl komanso gulu la methyl ku hydroxyl ortho-position ndikokwanira kudziteteza. The asymmetric inalepheretsa phenolic antioxidant, yokhala ndi 2 - methyl - 6 - terylary butyl phenol ngati mafupa, sikuti imangokhala ndi mawonekedwe amomwe amalepheretsa phenolic antioxidants, komanso imagwirizana ndi othandizira antioxidant kukhazikika komanso kukana kusintha kwa shading. Kotero ili ndi ntchito yowonekera kwambiri kuposa mtundu wachikhalidwe wosakanikirana wa phenol, ndipo ndi woyenera kutenthetsa matenthedwe.
AN245, AN1790 (komanso AN2777) ndi AO80 ndi atatu omwe amadziwika kuti asakanikirana ndi ma phenols antioxidants, omwe AN245 ndi omwe amagwiritsidwa ntchito kwambiri pamtengo wotsika.
AN 245 ndioyenera makamaka kupanga ma stereoobstructing phenolic antioxidants a ma polima opangidwa ndi organic. Monga antioxidant, imagwiritsidwa ntchito pokonzanso komanso kukonza kwakanthawi kwama polima a styrene monga HIPS, MBS ndi ABS, pulasitiki wa zomangamanga monga POM ndi PA ndi polyurethane. Imeneyi ndi njira yothetsera maunyolo muukadaulo wa PVC. Izi sizikhala ndi mphamvu pakulowetsa polima, komwe kumagwiritsidwa ntchito popanga polystyrene, polyvinyl chloride, imatha kuwonjezeredwa ku monomer kusanachitike.
Kuphatikiza pa kupezeka kwa ufa wamba, titha kupereka 35% ya kupezeka-AN245DW. Pambuyo pazaka zambiri zakuchita kupanga, madzi obalalika omwe amapangidwa ndikuperekedwa ndi kampani yathu sikophweka kuwachotsa, ndipo ndikosavuta kumwazikana kuposa ufa, womwe ndi antioxidant waukulu womwe umagwiritsidwa ntchito mu njira ya polymerization ya PVC.
Mwalandilidwa kuti mutilankhule nafe pakafunso!
Imelo: yihoo@yihoopolymer.com
Nambala: 17718400232
Post nthawi: Sep-13-2021