Ama-amine Antioxidants, ama-amine Antioxidants asetshenziswa kakhulu ukuvimbela ukuguga komoyampilo oshisayo, ukuguga kwe-ozone, ukuguga ukukhathala kanye ne-heavy metal ion catalytic oxidation, umphumela wokuvikela uhlukile. Ububi bayo ukungcola, ngokusho kwesakhiwo kungahlukaniswa kube:

Isigaba se-Phenyl naphthylamine: njenge-anti-A noma i-anti-A, i-antioxidant J noma D, i-PBNA iyi-antioxidant endala kakhulu, ikakhulukazi esetshenziselwa ukuvimbela ukuguga kwe-oksijeni eshisayo nokuguga, ngenxa yezizathu zobuthi, lolu hlobo lwe-antioxidant aluzange lusetshenziswe amazwe angaphandle.

I-Ketamine Antioxidant: inganikeza irabha ye-diene ukushisa okuhle kakhulu nokusebenza kokuguga kwe-oksijini, kwezinye izimo ukunikeza ukumelana okuhle nokusebenza kokuqhekeka kwe-flexural, kodwa kuyaqabukela ivimbele i-catalytic oxidation yama-ion ensimbi nomsebenzi wokuguga we-ozone. I-ejenti yokulwa nokuguga RD. I-agent elwa nokuguga i-AW ayinawo umsebenzi we-antioxidant, futhi ivame ukusetshenziswa njenge-ejenti yokulwa nephunga le-oxygen.

Okuphuma ku-Diphenylamine: Lawa ma-antioxidants avimbela ukusebenza kokuguga komoyampilo oshisayo olingana noma ngaphansi kwe-polymer ye-dihydroquinoline, lapho esetshenziswa njenge-antioxidant, alingana ne-antioxidant DD. kodwa isivikelo ekukhathaleni ukuguga siphansi kunalokhu kwakamuva.

Okuphuma ku-p-phenylenediamine: Lawa ma-antioxidants ayikilasi lama-antioxidants asetshenziswa kakhulu embonini yenjoloba njengamanje. Bangakwazi ukuvimbela ukuguga kwe-ozone, ukuguga ukukhathala, ukuguga kwe-oxygen eshisayo kanye ne-metal ion-catalyzed oxidation yemikhiqizo yenjoloba. I-Dialkyl p-phenylenediamine (efana ne-UOP788). Lezi zinto zine-anti-static ozone ukuguga, ikakhulukazi ukusebenza kokuguga kwe-ozone okumile ngaphandle kukapharafini, nokuvinjwa okuhle komphumela wokuguga komoya-mpilo oshisayo. Nokho, banomkhuba wokukhuthaza ukushiswa.

Ukusetshenziswa kwalezi zinto ezine-alkyl aryl p-phenylenediamine kunganikeza isivikelo esihle ekugugeni kwe-ozone enyakazayo. Eqinisweni, i-dialkyl-p-phenylenediamine ihlale isetshenziswa ngokuhambisana ne-alkyl-aryl-p-phenylenediamine. I-Alkyl aryl p-phenylenediamine njenge-UOP588, 6PPD. izinto ezinjalo zinokuvikeleka okuvelele ekugugeni kwe-ozone enamandla. uma isetshenziswa nge-wax kapharafini, iphinde ibonise ukuvikeleka okuvelele ekugugeni kwe-ozone emile futhi ngokuvamile ayinayo inkinga yokufafaza isithwathwa. Izinhlobonhlobo zakuqala, i-4010NA, zisasetshenziswa kabanzi.

I-6DDP futhi iyi-antioxidant evame ukusetshenziswa kulesi sigaba. Izizathu zalokhu ukuthi azibangeli i-dermatitis, zinomthelela omncane ekuphepheni kwenqubo uma kuqhathaniswa nezinye i-alkyl aryl p-phenylenediamine kanye ne-dialkyl p-phenylenediamine, inokuthambekela okuncane kokukhuthaza ukushiswa, ayiguquki kakhulu uma iqhathaniswa nezinye i-alkyl aryl. kanye ne-dialkyl p-phenylenediamine, iyisinzinzisi esihle kakhulu se-SBR, futhi ibonisa izakhiwo ze-antioxidant. Lapho ama-substitute wonke kuyi-aryl, ibizwa ngokuthi i-p-phenylenediamine. Uma kuqhathaniswa ne-alkyl aryl p-phenylenediamine, intengo iphansi, kodwa umsebenzi we-anti-ozonation nawo uphansi, futhi ngenxa yezinga lawo lokuhamba kancane, lezi zinto zinokuqina okuhle futhi zingama-antioxidants asebenzayo. Ububi babo ukuthi kulula ukufafaza ukhilimu enjoloba nge-solubility ephansi, kodwa iwusizo kakhulu ku-CR ingaveza ukuvikeleka okuhle kakhulu. Futhi ayikhiqizi inkinga yokugqugquzela ukushiswa.

I-Phenolic Antioxidants

Lolu hlobo lwe-antioxidant lusetshenziswa kakhulu njenge-antioxidant, izinhlobo zomuntu ngamunye nazo zinendima yokudlula ama-ion ensimbi. Kodwa umphumela wokuzivikela awulungile njenge-antioxidant ye-amine, inzuzo eyinhloko yalolu hlobo lwe-antioxidant ayingcolisi, ifanele imikhiqizo yenjoloba enombala okhanyayo.

I-phenol evinjiwe: lolu hlobo lwe-antioxidant lusetshenziswa kabanzi i-antioxidant 264, i-SP kanye namanye ama-antioxidants anesisindo samangqamuzana aphezulu, uma kuqhathaniswa nokuguquguquka kwezinto ezinjalo futhi ngenxa yalokho ukuqina okungahambi kahle, kodwa lezi zinto zinomphumela wokuvikela ophakathi. I-ejenti elwa nokuguga engu-264 ingasetshenziswa emikhiqizweni yezinga lokudla.

Ama-bisphenols avinjiwe: izinhlobo ezivame ukusetshenziswa ze-2246 ne-2246S, umsebenzi wokuvikela nokungangcoliswa kwalezi zinto ungcono kune-phenols evinjiwe, kodwa intengo iphezulu, lezi zinto zinganikeza ukuvikelwa okuphumelelayo kwemikhiqizo yesipontshi senjoloba, kodwa futhi isetshenziswe emikhiqizweni ye-latex. .

Ama-Multi-phenols, ikakhulukazi abhekisela kokuphuma kwe-p-phenylenediamine, njenge-2,5-di-tert-amylhydroquinone ingenye yazo, lezi zinto zisetshenziselwa ikakhulukazi ukugcina i-viscosity yamafilimu enjoloba angavulwanga kanye nezinamathiselo, kodwa futhi NBR BR isizinzisi.

I-Organic sulfide uhlobo lwe-antioxidant

Lolu hlobo lwe-antioxidant lusetshenziswa kabanzi njenge-stabilizer yamapulasitiki e-polyolefin njenge-hydroperoxide ebhubhisa i-antioxidant. Izicelo ezengeziwe kurabha i-dithiocarbamates kanye ne-benzimidazoles esekelwe ku-thiol. Ukusetshenziswa kwamanje kokungaphezulu yi-dibutyl dithiocarbamate zinc. Le nto ivame ukusetshenziswa ekukhiqizeni i-butyl rubber stabilizer. Enye i-dibutyldithiocarbamic acid nickel (i-antioxidant NBC), ingathuthukisa ukuvikelwa kwe-NBR, CR, SBR static ozone ukuguga. Kepha i-NR isiza umphumela we-oxidation.

I-benzimidazole esekelwe ku-Thiol

Okufana nama-antioxidants MB, i-MBZ, futhi ingenye ye-antioxidant evame ukusetshenziswa enjoloba, inomphumela wokuvikela omaphakathi ku-NR, SBR, BR, NBR. Futhi ivimbele i-catalytic oxidation yama-ion ethusi, izinto ezinjalo kanye namanye ama-antioxidants avame ukusetshenziswa futhi ngokuvamile akhiqiza imiphumela ye-synergistic. Lolu hlobo lokungcoliswa kwe-antioxidant luvame ukusetshenziswa emikhiqizweni enombala okhanyayo.

I-antioxidant engafuduki

Lapho irabha emthelela wokuvikela ongapheli wama-antioxidants, abizwa ngokuthi ama-antioxidants angafuduki, amanye abizwa nangokuthi ama-antioxidants angakhipheki noma ama-antioxidants aqhubekayo. Uma kuqhathaniswa ne-antioxidant evamile ngokuyinhloko kunzima ukuyikhipha, kunzima ukuyidlala futhi kunzima ukufuduka, ukuze i-antioxidant enjoloba idlale umphumela wokuvikela ohlala njalo wezindlela ezine ezilandelayo:

1, Khulisa isisindo samangqamuzana we-antioxidant.
2, ukucutshungulwa kwama-antioxidants kanye ne-rubber chemical bonding.
3, I-antioxidant ixhunyelelwa erabha ngaphambi kokucubungula.
4, enqubweni yokukhiqiza, ukuze i-monomer enomsebenzi wokuzivikela kanye ne-copolymerization ye-rubber monomer.
I-antioxidant kulezi zindlela ezintathu zokugcina, kwesinye isikhathi eyaziwa nangokuthi i-antioxidant esebenzayo noma i-polymer bonding antioxidant.