I-polymer ivamise ukuba sesimweni se-anoxic ngaphansi kwezimo zokucubungula i-extrusion, futhi isistimu iqukethe inani elikhulu lama-carbon radicals kunama-alkoxy radicals nama-hydroxyl radicals.Ngakho-ke, i-stabilizer yokucubungula efanelekile kufanele ikwazi ukuthwebula ama-radicals angenayo i-carbon ngokuphumelelayo.I-hydroxylamine antioxidant okukhulunywe ngayo ngenhla iwuhlobo lwe-carbon radical trapping agent.
Ama-ejenti aphambili wokucupha we-carbon free radical trapping emakethe yi-hydroxylamine, i-bisphenol mono-acrylate, i-ortho acrylyl esikhundleni se-phenol ne-benzofuranone izigaba ezimbalwa.
I-Bisphenol monoacrylate Antioxidants:
Kuma-molecule e-bisphenol monoacrylate, i-carbon radical ithathwa yiqembu le-acrylyl, futhi ama-enol radicals akhiqizwayo angaguqulwa abe ama-phenolic oxygen radicals azinzile yiqembu elisebenzayo le-hydroxyl ku-molecule efanayo.Lo mphumela waziwa ngokuthi i-bifunctional stabilization mechanism.Lokhu kunikeza i-bisphenol monoacrylate ikhono elinamandla kakhulu lokubamba ama-radical wamahhala.Ukuzinza kwayo kunamandla ngisho nasezingeni eliphezulu lokushisa.Izinkampani zaseJapan naseYurophu zethule imikhiqizo enjalo.Njengamanje, i-Sumilizer GM ka-Sumitomo Chemical, i-IRGANOX 3052 yi-BASF, kanye ne-AO3352/AO3353 isetshenziswa kakhulu emakethe.
| PRODUCT | AO3352 | AO3353 |
| INOMBOLO YECAS | 61167-58-6 | 123968-25-2 |
| UKUBUKA | UPHUSHA OMHLOPHE | UPHUUVA LWEKHRESTU EMHLOPHE |
| I-ASAY(%) | 99.00 MIN | 99.00 MIN |
| IPHUZU ELIQHILIKAYO(℃) | 130.00 MIN | 115.00 MIN |
| VOLATILES(%) | 0.30 MAX | 0.50 MAX |
| Umlotha(%) | 0.10 MAX | 0.10 MAX |
| ISICELO | Isetshenziswa kabanzi ku-PP, PE nakwamanye ama-polyolefin, i-ABS, i-HIPS, i-EPDM, i-SBR namanye ama-elastomers. | Isetshenziswa kakhulu kuma-adhesives, i-styrene thermoplastic elastomers, i-ABS, i-polystyrene ne-raba eguquliwe i-polyphenylethylene nezinye izinkambu.Ingakwazi ukuthwebula ngempumelelo ama-alkyl radicals, futhi yenze umthelela we-synergistic nge-benzotriazole UV absorbers kanye neziqinisi zokukhanya ze-HALS.Ku-elastomer enamathelayo, inomphumela omuhle we-synergistic nge-phenolic antioxidants kanye ne-phosphite ester antioxidants. |