1. Ka laulā noi
(1). Hoʻopili ʻia i ka ʻōpala unsaturated: e like me NR, BR, NBR, IR, SBR, etc.
(2). E hoʻopili i ka lāʻau paʻa: e like me ka EPM hiki ke hoʻoheheʻe wale ʻia e ka peroxide, hiki i ka EPDM ke vulcanized e ka peroxide a me ka sulfur.
(3). Hoʻopili ʻia i nā kaulahao kaulahao like ʻole: e like me Q vulcanization.
2. Nā hiʻohiʻona o ka ʻōnaehana vulcanization peroxide
(1). ʻO ka hoʻolālā pūnaewele o ka ʻōpala vulcanized ʻo ia ka paʻa CC, me ka ikehu paʻa kiʻekiʻe, ke kūpaʻa kemika kiʻekiʻe, a me ke kūpaʻa maikaʻi loa i ka ʻelemakule wela a me ka oxygen.
(2). He haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ka lāʻau Vulcanized, elasticity maikaʻi a maikaʻi ʻole ka hana ikaika.
(3). ʻAʻole maikaʻi ka hana palekana a me ka peroxide pipiʻi.
(4). I ka static sealing a i ʻole kiʻekiʻe wela static sealing huahana loaʻa kahi ākea o nā noi.
3. Hoʻohana pinepine ʻia nā peroxide
ʻO nā mea vulcanizing peroxide i hoʻohana mau ʻia he alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) a me nā esters peroxy. I waena o lākou, hoʻohana nui ʻia nā dialkyl peroxide. E like me: diisopropyl peroxide (DCP): ʻo ia ka mea i hoʻohana nui ʻia i kēia manawa he mea hoʻohana vulcanizing.
2,5-dimethyl-2,5-(di-tert-butylperoxy) hexane: ʻike ʻia ʻo bis-dipentyl
4. ʻO ka hana vulcanization peroxide
Hoʻopau maʻalahi ka hui peroxide o ka peroxide e ka wela e hana i nā radical manuahi, kahi e hoʻoulu ai i ke ʻano ʻano radical manuahi o ke kaulahao molekala.
5. Nā mea nui o ka vulcanization peroxide:
(1). ʻAi: ʻokoʻa me nā ʻano lāʻau lapaʻau like ʻole
ʻO ka maikaʻi o ka hoʻopili kea o ka peroxide: hiki i ka 1g mole o ka peroxide ke hana i ka nui o ka nui o nā molekala kopa e hoʻohua ai i ke kinikini cross-linking.
No ka laʻana: ʻo ka maikaʻi o ka hoʻopili ʻana o SBR he 12.5; ʻo ka maikaʻi o ka hoʻopili ʻana o BR he 10.5; ʻo ka maikaʻi o ka hoʻopili ʻana o EPDM, NBR, NR he 1; ʻO ka pono o ka hoʻohui ʻana o IIR he 0.
(2). Hoʻohana i ka mea hana a me ka co-sulfurizing agent no ka hoʻomaikaʻi ʻana i ka maikaʻi o ka hoʻopili ʻana
ʻO ke kuleana o ZnO ka hoʻomaikaʻi ʻana i ka pale wela o ka mea hoʻopili, ʻaʻole ka mea hoʻoulu. ʻO ke kuleana o ka waikawa stearic ka hoʻomaikaʻi ʻana i ka solubility a me ka hoʻopuehu ʻana o ZnO i loko o ka lāʻau. ʻO HVA-2 (N, N'-phthalimido-dimaleimide) kekahi mea hoʻoikaika pono o ka peroxide.
Hoʻohui ʻia ka mea hoʻoheheʻe vulcanizing kōkua: ka nui o ka sulfur melemele, a me nā mea hoʻohui ʻē aʻe e like me divinylbenzene, trialkyltricyanate, unsaturated carboxylates, etc.
(3). E hoʻohui i kahi mea liʻiliʻi o nā mea alkaline, e like me MgO, triethanolamine, a me nā mea ʻē aʻe, e hoʻomaikaʻi i ka maikaʻi o ka hoʻopili ʻana, e pale i ka hoʻohana ʻana i ka slot carbon black a me silica a me nā mea hoʻopiha waikawa ʻē aʻe (acid e hana i nā radical free passivation); ʻO nā antioxidants he mau amine a me nā antioxidants phenolic, maʻalahi hoʻi e hana i nā radical manuahi passivation, e hōʻemi ana i ka pono o ka hoʻopili ʻana, pono e hoʻohana liʻiliʻi.
(4). ʻO ka wela vulcanization: pono ke kiʻekiʻe ma mua o ka wela decomposition o peroxide
(5). Ka manawa Vulcanization: maʻamau 6 ~ 10 manawa o ka hapalua o ke ola o ka peroxide.
ʻO ka hapalua o ke ola o ka peroxide: ma kahi mahana, hoʻoheheʻe ka peroxide i ka hapalua o ka manaʻo kumu o ka manawa i koi ʻia, i hōʻike ʻia ma t1/2.
Inā he 1min ka hapalua o ke ola o DCP ma 170 ℃, a laila ʻo ka manawa sulphation maikaʻi he 6 ~ 10min.
Laʻana hana: EPDM 100 (kumu)
S 0.2 (mea hoʻomāmā hoʻomāmā)
SA 0.5 (mea hoʻoikaika)
ZnO 5.0 (e hoʻomaikaʻi i ka pale wela)
HAF 50 (mea hoʻoikaika ikaika)
DCP 3.0 (Thixotropic agent)
MgO 2.0 (Hoʻomaikaʻi i ka maikaʻi o ka hoʻopili ʻana)
ʻaila hoʻohana 10 (mea hoʻomaʻemaʻe)
