1.Bogolo bja tirišo
(1). E dirišwa go rabara ye e sa kgotsofatšwago: bjalo ka NR, BR, NBR, IR, SBR, bj.bj.
(2). Diriša go rabara ye e kgotsofetšego: go swana le EPM e ka vulcanized fela ka peroxide, EPDM e ka vulcanized ka bobedi peroxide le sebabole.
(3). E dirišwa go rabara ya ketane ya go fapafapana: bjalo ka Q vulcanization.
2. Litšobotsi tsa peroxide vulcanization tsamaiso
(1). Sebopego sa netweke sa rabara ye e vulcanized ke CC bond, ka maatla a godimo a kgokagano, go tsepama ga dikhemikhale mo go phagamego, le go ganetša mo go botse kudu go botšofadi bja phišo le oksitšene.
(2). Rabara ya Vulcanized e na le deformation ya go ya go ile ya fase, elasticity ye botse le tshepedišo ye mpe ya go fetoga.
(3). Polokeho e fokolang ya go šoma le peroxide ye e bitšago tšhelete e ntši.
(4). Ka tiiso e sa fetoheng kapa thempereichara e phahameng tiiso e sa fetoheng dihlahiswa na le mefuta e fapaneng ya dikopo.
3.Ka tlwaelo sebediswa peroxides
Didirišwa tša go vulcanizing tša peroxide tšeo di šomišwago ka tlwaelo ke diperoxide tša alkyl, diperoxide tša diacyl (dibenzoyl peroxide (BPO)) le di-peroxy esters. Gare ga tšona, di- dialkyl peroxide di dirišwa kudu. Go swana le: diisopropyl peroxide (DCP): ga bjale ke sedirišwa sa vulcanizing seo se šomišwago kudu.
2,5-dimethyl-2,5-(di-tert-butylperoxy) hexane: e tsebja gape bjalo ka bis-dipentyl
4. Peroxide vulcanization mokgwa wa
Sehlopha sa peroxide sa peroxide se bola gabonolo ke phišo go tšweletša di-free radical, tšeo di hlohleletšago karabelo ya go kgokaganya sefapano ya mohuta wa radical ya mahala ya ketane ya dimolekule tša rabara.
5. Dintlha tše bohlokwa tša peroxide vulcanization:
(1). Tekanyetšo: e fapana le mehuta ya rabara ye e fapanego
Bokgoni bja go kgokaganya sefapano bja peroxide: molekule wa 1g wa peroxide ya organic o ka dira gore ke dikramo tše kae tša dimolekule tša raba di tšweletša kgokagano ya sefapano ya dikhemikhale.Ge molekule o tee wa peroxide o ka dira gore dimolekule tša 1g tša rabara di kgokagantšwe ka sefapano, bokgoni bja go kgokaganya sefapano ke 1.
Mohlala: bokgoni bja go kgokaganya sefapano bja SBR ke 12.5; bokgoni bja go kgokaganya sefapano bja BR ke 10.5; bokgoni bja go kgokaganya sefapano bja EPDM, NBR, NR ke 1; bokgoni bja go kgokaganya sefapano bja IIR ke 0.
(2). Tšhomišo ya moemedi yo a šomago le moemedi wa go diriša sebabole go kaonafatša bokgoni bja go kgokaganya sefapano
Karolo ya ZnO ke go kaonafatša go ganetša phišo ya sekgomaretši, e sego activator. Karolo ya esiti ya stearic ke go kaonafatša go qhibidiga le go phatlalatšwa ga ZnO ka gare ga rabara. HVA-2 (N, N'-phthalimido-dimaleimide) le yona ke sedirišwa se se šomago sa peroxide.
Go tlaleletša moemedi wa go thuša wa vulcanizing: kudukudu sebabole se se serolane, le didirišwa tše dingwe tša go thuša tša go kgokaganya sefapano tša go swana le divinylbenzene, trialkyltricyanate, di-carboxylate tše di sa kgotsofatšwago, bj.bj.
(3). Add palo e nyenyane ea dintho alkaline, tse kang MgO, triethanolamine, joalo-joalo, ho ntlafatsa bokgoni ba sefapano-kgokaganyo, qoba tshebediso ya sekotjana khapone ba batsho le silica le tse ling acidic fillers (esiti ho etsa mahala radicals passivation); antioxidants ka kakaretso amine le phenolic antioxidants, hape bonolo ho etsa mahala radicals pasivation, fokotsa bokgoni ba sefapano-kgokaganyo, lokela ho sebediswa sparingly.
(4). Thempheretšha ya Vulcanization: e swanetše go ba ye e phagamego go feta themperetšha ya go bola ya peroxide
(5) . Vulcanization nako: ka kakaretso 6 ~ 10 makhetlo a halofo-bophelo ba peroxide.
Peroxide seripa-gare sa bophelo: ka thempereichara e itseng, peroxide bola ho halofo ea mahloriso a pele a nako e hlokahalang, bontšitsoeng ka t1/2.
Ge e le gore seripa-gare sa bophelo bja DCP ka 170°C ke 1min, gona nako ya yona ya sulphation ye botse e swanetše go ba 6 ~ 10min.
Mohlala wa tlhamo: EPDM 100 (motheo) .
S 0.2 (moemedi wa thušo wa vulcanizing) .
SA 0.5 (sedirišwa sa go šoma) .
ZnO 5.0 (go kaonafatša go ganetša phišo) .
HAF 50 (moemedi wa go matlafatša) .
DCP 3.0 (Moemedi wa thixotropic) .
MgO 2.0 (E kaonafatša bokgoni bja go kgokaganya sefapano) .
Oli ya go šoma 10 (moemedi wa go nolofatša) .
