The polima nthawi zambiri mu anoxic boma pansi pa zinthu extrusion processing, ndipo dongosolo lili ndi chiwerengero chachikulu cha carbon ankafuna kusintha zinthu mopitirira muyeso kuposa alkoxy ankafuna kusintha zinthu mopitirira ndi hydroxyl ankafuna kusintha zinthu mopitirira.Chifukwa chake, stabilizer yabwino yosinthira iyenera kugwira bwino ma radicals opanda mpweya.Hydroxylamine antioxidant yotchulidwa pamwambapa ndi mtundu wa carbon radical trapping agent.
Zothandizira zazikulu za carbon free radical trappings pamsika ndi hydroxylamine, bisphenol mono-acrylate, ortho acrylyl m'malo mwa phenol ndi benzofuranone magulu angapo.
Bisphenol monoacrylate antioxidants:
Mu mamolekyu a bisphenol monoacrylate, carbon radical imatengedwa ndi gulu la acrylyl, ndipo ma radicals a enol amatha kusinthidwa kukhala okhazikika a phenolic oxygen radicals ndi gulu la hydroxyl logwira ntchito mu molekyulu yomweyo.Izi zimatchedwa bifunctional stabilization mechanism.Izi zimapangitsa kuti bisphenol monoacrylate ikhale yolimba kwambiri yaulere.Kukhazikika kwake kumakhala kolimba ngakhale kutentha kwambiri.Makampani aku Japan ndi ku Europe adayambitsa zinthu zotere.Pakadali pano, Sumilizer GM yolembedwa ndi Sumitomo Chemical, IRGANOX 3052 yolembedwa ndi BASF, ndi AO3352/AO3353 imagwiritsidwa ntchito kwambiri pamsika.
| PRODUCT | AO3352 | AO3353 |
| CAS NUMBER | 61167-58-6 | 123968-25-2 |
| KUONEKERA | UFA WOYERA | UFA WACHIKURU WOYERA |
| ZOYESA(%) | 99.00 MIN | 99.00 MIN |
| MALO OSUNGULIRA(℃) | 130.00 MIN | 115.00 MIN |
| VOLATILES(%) | 0.30 MAX | 0.50 MAX |
| Phula(%) | 0.10 MAX | 0.10 MAX |
| APPLICATION | Amagwiritsidwa ntchito kwambiri mu PP, PE ndi polyolefin ena, ABS, chiuno, EPDM, SBR ndi elastomers ena. | Amagwiritsidwa ntchito kwambiri zomatira, styrene thermoplastic elastomers, ABS, polystyrene ndi mphira kusinthidwa polyphenylethylene ndi zina.Iwo akhoza bwino analanda alkyl ankafuna kusintha zinthu mopitirira, ndipo amachita synergistic kwenikweni ndi benzotriazole UV absorbers ndi HALS kuwala stabilizers.Mu zomatira elastomer, imakhala yabwino synergistic zotsatira ndi phenolic antioxidants ndi phosphite ester antioxidants. |