1.Aikace-aikace iyaka
(1). Aiwatar da roba unsaturated: kamar NR, BR, NBR, IR, SBR, da dai sauransu.
(2). Aiwatar da cikakken roba: irin su EPM kawai za a iya ɓarna ta peroxide, EPDM na iya zama ɓarna da peroxide da sulfur.
(3). Aiwatar da rubber sarkar daban-daban: kamar Q vulcanization.
2. Halayen tsarin vulcanization peroxide
(1). Tsarin hanyar sadarwa na robar vulcanized shine haɗin CC, tare da ƙarfin haɗin gwiwa, babban kwanciyar hankali na sinadarai, da kyakkyawan juriya ga thermal da oxygen tsufa.
(2). Vulcanized roba yana da ƙananan nakasar dindindin, mai kyau na elasticity da rashin ƙarfi mai ƙarfi.
(3). Rashin aminci aiki da tsadar peroxide.
(4). A a tsaye hatimi ko high zafin jiki a tsaye hatimi kayayyakin suna da fadi da kewayon aikace-aikace.
3. peroxides da aka saba amfani da su
Abubuwan da ake amfani da su na ɓarnawar peroxide da aka saba amfani da su sune alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) da peroxy esters. Daga cikin su, ana amfani da dialkyl peroxides sosai. Irin su: diisopropyl peroxide (DCP): a halin yanzu an fi amfani da wakili mai ɓarna.
2,5-dimethyl-2,5- (di-tert-butylperoxy) hexane: kuma aka sani da bis-dipentyl
4. Peroxide vulcanization inji
Rukunin peroxide na peroxide yana sauƙi bazuwa da zafi don samar da radicals kyauta, wanda ke haifar da nau'in radical free nau'in haɗin haɗin haɗin haɗin gwiwar roba.
5. Mahimman wuraren ɓarnawar peroxide:
(1). Sashi: ya bambanta da nau'in roba daban-daban
Ƙimar haɗin kai na peroxide: 1g kwayoyin halitta na kwayoyin peroxide na iya yin adadin nau'o'in nau'in nau'in roba na iya samar da haɗin gwiwar sinadarai.
Misali: ingantaccen haɗin haɗin gwiwa na SBR shine 12.5; Haɗin haɗin haɗin gwiwar BR shine 10.5; haɓakar haɗin gwiwar haɗin gwiwar EPDM, NBR, NR shine 1; Canjin haɗin haɗin gwiwar IIR shine 0.
(2). Amfani da wakili mai aiki da wakili mai haɗin gwiwa don haɓaka haɓakar haɗin kai
Matsayin ZnO shine inganta juriya na zafi na m, ba mai kunnawa ba. Matsayin stearic acid shine inganta narkewa da watsawa na ZnO a cikin roba. HVA-2 (N, N'-phthalimido-dimaleimide) kuma mai tasiri ne na peroxide.
Ƙara ƙarin wakili na vulcanizing: yafi sulfur rawaya, da sauran ma'aikatan haɗin gwiwar haɗin gwiwa irin su divinylbenzene, trialkyltricyanate, unsaturated carboxylates, da dai sauransu.
(3). Ƙara ƙananan abubuwa na alkaline, irin su MgO, triethanolamine, da dai sauransu, don inganta haɓakar haɗin gwiwar giciye, kauce wa yin amfani da slot carbon baki da silica da sauran acidic fillers (acid don yin free radicals passivation); antioxidants gabaɗaya amine da phenolic antioxidants, kuma mai sauƙin yin ɓacin rai na radicals kyauta, rage haɓakar haɗin kai, yakamata a yi amfani da shi kaɗan.
(4). Zazzabi Vulcanization: yakamata ya zama sama da zafin bazuwar peroxide
(5). Lokacin Vulcanization: gabaɗaya sau 6 ~ 10 na rabin rayuwar peroxide.
Rabin Peroxide: a wani zafin jiki, ɓarna peroxide zuwa rabin ainihin ƙaddamarwar lokacin da ake buƙata, wanda aka bayyana a cikin t1/2.
Idan rabin rayuwar DCP a 170 ℃ shine 1min, to, ingantaccen lokacin sulfation ya kamata ya zama 6 ~ 10min.
Misali: EPDM 100 (tushe)
S 0.2 (wakilin vulcanizing mai taimako)
SA 0.5 (mai kunnawa)
ZnO 5.0 (don inganta juriya na zafi)
HAF 50 (wakilin ƙarfafawa)
DCP 3.0 (Thixotropic wakili)
MgO 2.0 (yana inganta haɓakar haɗin kai)
Mai aiki 10 (wakilin laushi)
