Tšusumetso ea vulcanization sebopeho le thepa ea rabara

Tšusumetso ea vulcanization sebopeho le thepa ea rabara:

Vulcanization ke mohato oa bohlokoa ts'ebetsong ea tlhahiso ea lihlahisoa tsa rabara, e leng mokhoa oa ho fetoha ho tloha mohahong o le mong ho ea ho sebopeho sa 'mele, ho tlisa liphetoho tse feletseng ho kenyeletsa thepa ea' mele le ea mechine, ho hanyetsa mocheso, ho hanyetsa solvent, le ho hanyetsa ho bola, ho matlafatsa boleng le ts'ebeliso. mefuta e fapaneng ya sehlahiswa.

Sebopeho le thepa ea rabara e ba le liphetoho tse kholo pele le ka morao ho vulcanization. Limolek'hule tsa rabara pele ho vulcanization li na le sebopeho sa mola o nang le matla a van der Waals a sebetsang lipakeng tsa tsona, a bonts'a polasetiki e ntle le bolelele, hammoho le ho qhibiliha. Nakong ea ts'ebetso ea vulcanization, limolek'hule lia tsosoa 'me li kena lik'hemik'hale tse kopanyang lik'hemik'hale, li etsa mohaho oa marang-rang moo limolek'hule li kopantsoeng ke lik'hemik'hale tsa lik'hemik'hale.

Sebopeho le thepa ea rabara e senyehileng haholo-holo e kenyelletsa:

Sebopeho: lik'hemik'hale tsa lik'hemik'hale, boemo ba li-cross-linking bond, tekanyo ea cross-linking, le cross-linking

Tshebetso: Thepa ea mochini (matla a nako e telele a bolelele, ho thatafala, matla a tsitsitseng, bolelele, elasticity), thepa ea 'mele, botsitso ba lik'hemik'hale ka mor'a ho senyeha.

Ts'ebetso ea vulcanization e ka fetola haholo thepa ea rabara. Ho nka rabara ea tlhaho e le mohlala, ha tekanyo ea vulcanization e ntse e eketseha:

Liphetoho tsa thepa ea mochini: ho eketseha ha elasticity, matla a tsitsitseng, matla a tsitsitseng, matla a tabohang, le ho thatafala, ho fokotseha ha nako e telele, ho fokotseha ho sa feleng, le mocheso oa mokhathala.

Liphetoho tsa thepa ea 'mele: Ho kenella ha moea le ho kenella ha metsi ho fokotseha, ho ke ke ha qhibiliha, ho ka ruruha feela, ho hanyetsa mocheso hoa ntlafala, botsitso ba lik'hemik'hale boa ntlafala, karabelo ea crosslinking e felisa lihlopha kapa liathomo tse sebetsang haholo, ho etsa hore botsofali bo be thata ho e phetha. Sebopeho sa marang-rang se sitisa ho ata ha limolek'hule tse tlaase, ho etsa hore ho be thata hore li-radicals tsa mahala tsa rabara li hasane.

Maemo a vulcanization, ho kenyelletsa khatello, mocheso le nako, ke lintlha tse ka sehloohong tse khethollang liphello tsa vulcanization. Khatello ea vulcanization e na le tšusumetso ea bohlokoa ho thibela ho thehoa ha li-bubble ka thepa ea rabara, ho ntlafatsa ho kopana ha thepa ea rabara, le ho tlatsa hlobo ka thepa ea rabara. E ka boela ea ntlafatsa ho khomarela pakeng tsa lihlopha tse sa tšoaneng (rabara lera le lesela la lesela kapa lera la tšepe, lesela la lesela le lesela la lesela) sehlahisoa, 'me le ntlafatsa thepa ea' mele ea rabara e entsoeng ka vulcanized (e kang ho koba ho hanyetsa).

Thempereichara ea vulcanization ke boemo ba mantlha ba karabelo ea vulcanization, e ka amang lebelo la vulcanization ka kotloloho, boleng ba sehlahisoa le melemo ea moruo ea khoebo. Ho phahamisa mocheso oa vulcanization ho ka potlakisa lebelo la vulcanization le ho ntlafatsa katleho ea tlhahiso, empa mocheso o feteletseng oa vulcanization o ka lebisa mathateng a kang ho robeha ha molek'hule ea rabara, ho fetoha ha vulcanization, ho fokotseha ha thepa ea thepa ea rabara, le ho fokotseha ha matla a masela. E ka boela ea khutsufatsa nako ea ho chesa ha thepa ea rabara, ea baka khaello ea rabara ea lehae le ho senyeha ho sa lekaneng ha lihlahisoa. Ka hona, khetho ea mocheso oa vulcanization e lokela ho nahanela ka botlalo lintlha tse kang mofuta oa rabara, sistimi ea vulcanization le sebopeho sa sehlahisoa.

Ho fumana maemo a vulcanization - ho kenyelletsa khatello, mocheso, le nako - ke ts'ebetso e rarahaneng e hlokang ho nahanoa ka lintlha tse ngata.

Khatello ea Vulcanization: Khetho ea khatello ea vulcanization haholo-holo e itšetlehile ka moralo le litlhoko tsa lihlahisoa tsa rabara. Ka kakaretso, khetho ea khatello e khethoa haholo ke sebōpeho, boholo le ho rarahana ha lihlahisoa tsa rabara. Ha khatello e kholoanyane, ho na le metsi a mangata a rabara, a ka tlatsang hlobo hantle. Ka nako e ts'oanang, khatello e phahameng e ka thibela ka katleho ho hlahisa li-bubble le ho ntlafatsa compactness ea sehlahisoa. Leha ho le joalo, khatello e feteletseng e ka lebisa ho phallo e feteletseng ea thepa ea rabara, e bakang ho sotha sebopeho sa sehlahisoa.

Thempereichara ea sulphurization: Thempereichara ea vulcanization e ama ka kotloloho lebelo le boleng ba karabelo ea vulcanization. Ha mocheso o phahame, o potlakisa ts'ebetso ea vulcanization, empa e ka baka ho robeha ha liketane tsa limolek'hule tsa rabara, tse amang thepa ea 'mele ea sehlahisoa. Mocheso o nepahetseng oa vulcanization o ka netefatsa lebelo le letle la vulcanization ntle le ho baka tšenyo e kholo ea mocheso ho thepa ea rabara.

Nako ea sulfurization: Nako ea vulcanization e amana ka kotloloho le mocheso oa vulcanization. Lithempereichara tse phahameng li ka hloka nako e khuts'oane ea ho senyeha, le ka tsela e fapaneng. Ka kakaretso, khetho ea nako ea vulcanization e hloka ho nahana ka mofuta oa thepa ea rabara, mocheso oa vulcanization le botenya ba sehlahisoa. Nako e nepahetseng ea vulcanization e behiloeng ka liteko e ka netefatsa hore lisebelisoa tsa rabara li fihlella lisebelisoa tse nepahetseng tsa mochini le ho hanyetsa botsofali.

Ka kakaretso, ho khetholla maemo a vulcanization ke ts'ebetso e hlokang ho nahanela ka botlalo lintlha tse fapaneng tse kang mofuta oa thepa ea rabara, sebopeho sa sehlahisoa, lisebelisoa tsa vulcanization, joalo-joalo. ho fumana ts'ebetso e ntle ka ho fetisisa ea sehlahisoa.