Polymer na-abụkarị na ọnọdụ anoxic n'okpuru ọnọdụ nhazi extrusion, na usoro nwere ọnụ ọgụgụ dị ukwuu nke carbon radicals karịa alkoxy radicals na hydroxyl radicals.Ya mere, ezigbo nhazi stabilizer kwesịrị inwe ike ijide carbon free radicals nke ọma.Hydroxylamine antioxidant nke a kpọtụrụ aha n'elu bụ ụdị ọnyà carbon radical.
Ndị na-ahụ maka ọnyà carbon free radical na ahịa bụ hydroxylamine, bisphenol mono-acrylate, ortho acrylyl dochie anya phenol na benzofuranone ọtụtụ edemede.
Bisphenol monoacrylate antioxidants:
N'ime ụmụ irighiri ihe bisphenol monoacrylate, ndị otu acrylyl na-ejide carbon radical, na enol radicals emepụtara nwere ike gbanwee ka ọ bụrụ radicals oxygen phenolic kwụsiri ike site na otu ọrụ hydroxyl n'otu molecule ahụ.A maara mmetụta a dị ka usoro nkwụsi ike bifunctional.Nke a na-enye bisphenol monoacrylate ikike ọnyà na-enweghị isi.Nkwụsi ike ya siri ike ọbụna na okpomọkụ dị elu.Ụlọ ọrụ dị na Japan na Europe ewepụtala ngwaahịa ndị dị otú ahụ.Ugbu a, Sumilizer GM nke Sumitomo Chemical, IRGANOX 3052 nke BASF, na AO3352/AO3353 na-ejikarị eme ihe n'ahịa.
| Ngwaahịa | AO3352 | AO3353 |
| Nọmba CAS | 61167-58-6 | 123968-25-2 |
| Mpụta | ỤWA Ọcha | ỤWA kristal na-acha ọcha |
| ASSAY(%) | 99.00 MIN | 99.00 MIN |
| IHE NA-agbaze (℃) | 130.00 MIN | 115.00 MIN |
| VOLATILES(%) | 0.30 Max | 0.50 Max |
| ASH(%) | 0.10 Max | 0.10 Max |
| Ngwa | A na-ejikarị PP, PE na polyolefin ndị ọzọ, ABS, HIPS, EPDM, SBR na ndị ọzọ elastomers. | A na-eji ya eme ihe na adhesives, styrene thermoplastic elastomer, ABS, polystyrene na roba gbanwetụrụ polyphenylethylene na ubi ndị ọzọ.Ọ nwere ike weghara alkyl radicals nke ọma, ma na-arụ ọrụ synergistic na benzotriazole UV absorbers na HALS ìhè stabilizers.Na nrapado elastomer, ọ nwere ezigbo synergistic mmetụta na phenolic antioxidants na phosphite ester antioxidants. |