Ama-phenols athikamezeka ane-tert-butyl (X = tert-butyl) kanye ne-methyl (R = methyl CH3) endaweni o-o yeqembu le-phenolic hydroxyl elithintekile kunganciphisa isithiyo esiqinile seqembu le-phenolic hydroxyl elithintekile ngezinga elithile, futhi kusheshiswe izinga lokuphendula ngama-antioxidant, ngaleyo ndlela lenze isakhiwo esisha se-antioxidant sidlale umphumela ongalindelekile. Lesi sakhiwo esisha se-phenols antioxidant esivinjelwe sibizwa ngokuthi i-phenyl antioxidant evinjelwe.
Isakhiwo se-phenolic esivinjelwe i-asymmetric neqembu le-tert-butyl neqembu le-methyl e-hydroxyl ortho-position lanele ukuzivikela. I-asymmetric ivimbe i-phenolic antioxidant, ene-2 - methyl-6 - tertiary butyl phenol njengamathambo, hhayi nje kuphela ukuthi inezici ezijwayelekile zama-phenolic antioxidants avimbelekile, kodwa futhi ihlangana nokuqina okusizayo kwe-antioxidant nokumelana nomphumela wokufiphaza. Ngakho-ke inokusebenza okusobala kakhulu kunohlobo lwendabuko olulinganayo lwe-phenol evinjelwe, futhi ilungele izinhlelo zokusebenza ze-oxidation ezishisayo.
I-AN245, i-AN1790 (kanye ne-AN2777) ne-AO80 yizona zinto ezintathu ezivame kakhulu ezingavimbeli ama-phenols antioxidants, phakathi kwazo i-AN245 esetshenziswa kakhulu ngentengo ephansi.
I-245 ilungele ikakhulukazi ama-stereoobstructing phenolic antioxidants wama-polymer eziphilayo. Njenge-antioxidant, isetshenziselwa ukucubungula nokwenziwa ngcono kokuqina okushisayo kwama-polymer e-styrene afana ne-HIPS, MBS ne-ABS, amapulasitiki obunjiniyela afana ne-POM ne-PA ne-polyurethane. Futhi iyitinali terminator esebenzayo kunqubo ye-PVC polymerization. Lo mkhiqizo awunamphumela ekuphenduleni kwe-polymer, okusetshenziselwa umthelela ophezulu we-polystyrene, i-polyvinyl chloride, ungangezwa kwi-monomer ngaphambi kwe-polymerization.
Ngaphezu kwesimo sokuphakelwa kwempuphu ejwayelekile, singanikeza ngokuqukethwe okungu-35% kokusabalalisa-AN245DW. Ngemuva kweminyaka eminingi yokuhlangenwe nakho kokukhiqiza, uketshezi lokusabalalisa olukhiqizwe futhi lunikezwe yinkampani yethu akulula ukuluhlukanisa, futhi kulula ukusabalalisa kune-powder, eyi-antioxidant eyinhloko esetshenziselwa inqubo ye-PVC polymerization.
Wamukelekile njalo ukuxhumana nathi ngemibuzo!
I-imeyili: yihoo@yihoopolymer.com
Ucingo: 17718400232
Isikhathi Iposi: Sep-13-2021