Amine antioxidants, amine antioxidants aka yafi amfani da su hana thermal oxygen tsufa, ozone tsufa, gajiya tsufa da nauyi karfe ion catalytic hadawan abu da iskar shaka, da kariya sakamako ne na kwarai.Rashin hasara shi ne gurɓatacce, bisa ga tsarin za a iya ƙara zuwa:

Phenyl naphthylamine class: irin su anti-A ko anti-A, antioxidant J ko D, PBNA shine mafi tsufa antioxidant, wanda aka fi amfani dashi don hana tsufa oxygen tsufa da gajiya tsufa, saboda dalilai masu guba, irin wannan maganin antioxidant da wuya a yi amfani da shi a ciki. kasashen waje.

Ketamine antioxidant: na iya ba diene roba zafi mai kyau da kuma aikin tsufa na iskar oxygen, a wasu lokuta don ba da juriya mai kyau ga aikin fashewar sassauƙa, amma da wuya ya hana oxidation catalytic na ions karfe da aikin tsufa na ozone.Wakilin rigakafin tsufa RD.Wakilin rigakafin tsufa AW ba kawai yana da aikin antioxidant ba, kuma galibi ana amfani dashi azaman wakili na iskar oxygen.

Abubuwan da aka samo na Diphenylamine: Wadannan antioxidants suna hana tasiri na tsufa oxygen na thermal daidai ko žasa da dihydroquinoline polymer, lokacin da aka yi amfani da su azaman antioxidant, suna daidai da DD antioxidant.amma kariya daga gajiyar tsufa ya fi na baya.

Abubuwan da aka samo na p-phenylenediamine: Waɗannan antioxidants rukuni ne na antioxidants da ake amfani da su sosai a masana'antar roba a halin yanzu.Za su iya hana tsufar sararin samaniya, tsufa na gajiya, tsufa na iskar oxygen da ƙarfe ion-catalyzed oxidation na samfuran roba.Dialkyl p-phenylenediamine (kamar UOP788).Wadannan abubuwa suna da tsufa na musamman na ozone na anti-static, musamman a tsaye aikin tsufa na ozone ba tare da paraffin ba, da kuma hanawa mai kyau na tasirin iskar oxygen na thermal.Koyaya, suna da ɗabi'a don haɓaka zafi.

Yin amfani da waɗannan abubuwa tare da alkyl aryl p-phenylenediamine na iya ba da kariya mai kyau daga tsayayyen tsufa na ozone.A zahiri, ana amfani da dialkyl-p-phenylenediamine koyaushe tare da alkyl-aryl-p-phenylenediamine.Alkyl aryl p-phenylenediamine kamar UOP588, 6PPD.Irin waɗannan abubuwa suna da kyakkyawan kariya daga tsufan ozone mai ƙarfi.idan aka yi amfani da su da kakin zuma, suna kuma nuna kyakkyawan kariya daga tsufan ozone kuma yawanci ba sa samun matsalar fesa sanyi.Nau'in farko, 4010NA, har yanzu ana amfani da shi sosai.

6DDP shima antioxidant ne da aka saba amfani dashi a cikin wannan rukunin.Dalilan wannan shine cewa ba ya haifar da dermatitis, yana da ƙananan tasiri akan tsarin tsaro idan aka kwatanta da sauran alkyl aryl p-phenylenediamine da dialkyl p-phenylenediamine, yana da ƙananan hali don inganta ƙonawa, yana da ƙananan rashin ƙarfi idan aka kwatanta da sauran alkyl aryl. da dialkyl p-phenylenediamine, yana da kyau kwarai stabilizer ga SBR, kuma yana nuna kaddarorin antioxidant.Lokacin da masu maye gurbin duk aryl ne, ana kiran shi p-phenylenediamine.Idan aka kwatanta da alkyl aryl p-phenylenediamine, farashin yana da ƙasa, amma aikin anti-ozonation kuma yana da ƙasa, kuma saboda jinkirin gudun hijirar, waɗannan abubuwa suna da tsayi mai kyau kuma suna da tasiri na antioxidants.Rashin hasararsu shine cewa suna da sauƙin fesa kirim a cikin roba tare da ƙarancin solubility, amma yana da amfani sosai a cikin CR yana iya samar da kariya mai kyau.Kuma baya haifar da matsalar inganta ƙonawa.

Phenolic antioxidants

Ana amfani da wannan nau'in maganin antioxidant a matsayin antioxidant, nau'ikan mutum daban-daban kuma suna da rawar wucewar ions na ƙarfe.Amma tasirin kariya ba shi da kyau kamar antioxidant amine, babban fa'idar irin wannan nau'in antioxidant ba shi da gurɓatacce, dace da samfuran roba masu launin haske.

phenol mai hanawa: irin wannan nau'in antioxidant ana amfani dashi da yawa antioxidant 264, SP da sauran antioxidants masu nauyin nauyin kwayoyin halitta, idan aka kwatanta da rashin daidaituwa na irin waɗannan abubuwa kuma saboda haka rashin ƙarfi, amma waɗannan abubuwa suna da matsakaicin sakamako mai kariya.Ana iya amfani da wakili na rigakafin tsufa 264 a cikin samfuran kayan abinci.

Bisphenols masu hanawa: yawancin nau'ikan 2246 da 2246S da ake amfani da su, aikin kariya da rashin gurɓatar waɗannan abubuwan sun fi phenols masu hanawa, amma farashin yana da yawa, waɗannan abubuwan na iya ba da kariya mai inganci ga samfuran soso na roba, amma kuma ana amfani da su a cikin samfuran latex. .

Multi-phenols, galibi yana nufin abubuwan da suka samo asali na p-phenylenediamine, kamar 2,5-di-tert-amylhydroquinone yana ɗaya daga cikinsu, ana amfani da waɗannan abubuwan galibi don kula da danko na fina-finai na roba da adhesives, amma kuma NBR BR. stabilizer.

Organic sulfide irin antioxidant

Ana amfani da irin wannan nau'in antioxidant a ko'ina azaman stabilizer don robobin polyolefin azaman hydroperoxide yana lalata antioxidant.Ƙarin aikace-aikace a cikin roba sune dithiocarbamates da benzimidazoles na tushen thiol.Aikace-aikacen yanzu na ƙarin shine dibutyl dithiocarbamate zinc.Ana amfani da wannan abu da yawa wajen samar da butyl roba stabilizer.Wani shine dibutyldithiocarbamic acid nickel (antioxidant NBC), zai iya inganta kariyar NBR, CR, SBR static ozone tsufa.Amma ga NR yana taimakawa kang oxidation sakamako.

Benzimidazole na tushen Thiol

Irin su antioxidants MB, MBZ, kuma yana daya daga cikin magungunan da ake amfani da su a cikin roba, suna da matsakaicin tasiri na kariya akan NR, SBR, BR, NBR.Kuma sun hana catalytic oxidation na jan karfe ions, irin waɗannan abubuwa da wasu antioxidants da aka saba amfani da su kuma galibi suna haifar da tasirin haɗin gwiwa.Ana amfani da irin wannan nau'in gurɓataccen ƙwayar cuta a cikin samfurori masu launin haske.

Antioxidant mara ƙaura

Inda roba a cikin tasirin kariya na dindindin na antioxidants, wanda ake kira antioxidants marasa ƙaura, wasu kuma ana kiran su antioxidants marasa cirewa ko kuma masu dagewa.Idan aka kwatanta da babban maganin antioxidant yana da wuyar cirewa, da wuya a yi wasa kuma yana da wahalar ƙaura, ta yadda antioxidant ɗin da ke cikin roba ya yi tasirin kariya mai ɗorewa na hanyoyi huɗu masu zuwa:

1. Ƙara nauyin kwayoyin halitta na antioxidant.
2, sarrafa maganin antioxidants da haɗin sinadarai na roba.
3. A antioxidant ne grafted a kan roba kafin aiki.
4, a cikin masana'antu tsari, sabõda haka, monomer tare da aikin kariya da roba monomer copolymerization.
Antioxidants a cikin hanyoyin uku na ƙarshe, wani lokacin kuma ana kiranta da antioxidant mai amsawa ko polymer bonding antioxidant.