Mhedzisiro yevulcanization pane chimiro uye zvimiro zverabha:
Vulcanization inhanho yakakosha mukugadzirwa kwezvigadzirwa zverabha, inova maitiro ekushandura kubva kumutsara kuumbwa kuenda kuchimiro chemuviri, ichiunza shanduko dzakakwana dzinosanganisira zvemuviri uye zvemuchina zvivakwa, kupikisa tembiricha, kunyungudutsa, uye kusagadzikana kwekuora, kuwedzera kukosha uye kushandiswa. huwandu hwechigadzirwa.
Chimiro uye zvimiro zverabha zvinopinda shanduko huru pamberi uye mushure mevulcanization. Mamorekuru erabha isati yaitwa vulcanization ane mutsara chimiro chine van der Waals mauto anoshanda pakati pawo, achiratidza kunaka kwepurasitiki uye kurebesa, pamwe nekunyungudika. Munguva ye vulcanization process, mamorekuru anokonzereswa uye anopinda kemikari cross-linking reactions, achigadzira network dhizaini apo mamorekuru anosungirirwa nemakemikari bond.
Chimiro uye zvimiro zvevulcanized rabha zvinonyanya zvinosanganisira:
Chimiro: chemikemikari zvisungo, chinzvimbo chemuchinjiko-chibatanidza zvisungo, dhigirii rekuyambuka-kubatanidza, uye kuyambuka-kubatanidza
Performance: Mechanical zvivakwa (nguva dzose elongation simba, kuoma, kusimba simba, elongation, elasticity), zvimiro zvemuviri, kugadzikana kwemakemikari mushure mevulcanization.
Iyo vulcanization process inogona kushandura zvakanyanya zvimiro zverabha. Kutora rabha yechisikigo semuenzaniso, sezvo dhigirii revulcanization rinowedzera:
Shanduko mune zvemagetsi zvivakwa: kuwedzera elasticity, kusimba simba, kusimba simba, kubvarura simba, uye kuoma, kuderera kwehuremu, kudzvanya kusingaperi deformation, uye kuneta chizvarwa chekupisa.
Shanduko yezvimiro zvemuviri: Kupinda kwemhepo uye kupera kwemvura kuderera, hakugone kunyungudika, kunogona chete kuzvimba, kupisa kupisa kunovandudza, kugadzikana kwemakemikari kunovandudza, crosslinking reaction inobvisa mapoka anoshanda zvakanyanya kana maatomu, zvichiita kuti kuchembera kuome kuita. Mamiriro etiweki anotadzisa kupararira kwemamorekuru akaderera, zvichiita kuti zviome kuti rubber emahara radicals apararire.
Iyo vulcanization mamiriro, kusanganisira kudzvanywa, tembiricha, uye nguva, ndizvo zvinhu zvakakosha zvinotaridza mhedzisiro yevulcanization. Iyo vulcanization pressure ine chekuita kwakakosha kudzivirira kuumbwa kwemabhuru muzvinhu zverabha, kuvandudza kuumbwa kwechinhu cherubha, uye kuzadza mold nerubha zvinhu. Inogona zvakare kuvandudza kunamatira pakati peakasiyana akaturikidzana (rabha layer uye jira layer kana simbi layer, jira rejira uye jira rejira) muchigadzirwa, uye kuvandudza hunhu hweiyo vulcanized rabha (sekukotama kuramba).
Iyo tembiricha yevulcanization ndiyo yekutanga mamiriro eiyo vulcanization reaction, iyo inogona kukanganisa zvakananga vulcanization kumhanya, mhando yechigadzirwa, uye mabhenefiti ehupfumi ebhizinesi. Kusimudza tembiricha ye vulcanization kunogona kumhanyisa kukurumidza kwe vulcanization uye kunatsiridza hunyanzvi hwekugadzira, asi yakanyanyisa vulcanization tembiricha inogona kutungamira kumatambudziko akadai serubha mamorekuru cheni breakage, vulcanization reversal, kudzikira kwemagetsi zvivakwa zverabha, uye kuderera kwesimba remachira. Inogona zvakare kupfupisa nguva yekupisa yezvigadzirwa zverabha, zvichikonzera kushomeka kwerabha yemuno uye kusaenzana vulcanization yezvigadzirwa. Naizvozvo, kusarudzwa kwekushisa kwe vulcanization kunofanirwa kunyatso funga zvinhu zvakaita serudzi rwerabha, vulcanization system, uye chimiro chechigadzirwa.
Kuona vulcanization mamiriro - kusanganisira kudzvanywa, tembiricha, uye nguva - idanho rakaomarara rinoda kutariswa kwezvinhu zvakawanda.
Vulcanization pressure: Sarudzo yevulcanization pressure inonyanya kuenderana nedhizaini uye zvinodiwa zvezvigadzirwa zverabha. Kazhinji, kusarudzwa kwekumanikidzwa kunonyanya kutariswa nechimiro, saizi, uye kuoma kwezvinhu zvigadzirwa zverabha. Iyo yakanyanya kudzvinyirira, zviri nani kuyerera kwerubha, iyo inogona kuzadza zviri nani mold. Panguva imwecheteyo, kudzvinyirirwa kwepamusoro kunogona kudzivirira zvinobudirira kugadzirwa kwemabhuru uye kugadzirisa kuwirirana kwechigadzirwa. Nekudaro, kudzvinyirira kwakanyanya kunogona kutungamirira mukuyerera kwakanyanya kwezvinhu zverubha, zvichikonzera kukanganisa muchimiro chechigadzirwa.
Sulfurization tembiricha: Iyo tembiricha yevulcanization inokanganisa zvakananga kumhanya uye kunaka kweiyo vulcanization reaction. Iyo yakanyanya tembiricha, iyo inokurumidza kuita vulcanization, asi inogona kukonzera kutsemuka kwerabha molecular cheni, zvichikanganisa maitiro echigadzirwa. Iyo yakakodzera vulcanization tembiricha inogona kuvimbisa yakanaka vulcanization kumhanya pasina kukonzeresa kukuvadza kwekupisa kune zvinhu zverabha.
Sulfurization nguva: Iyo vulcanization nguva yakanangana neiyo vulcanization tembiricha. Tembiricha yakakwira ingangoda nguva diki dzevulcanization, uye zvakasiyana. Kazhinji, kusarudzwa kwenguva yevulcanization kunoda kufunga nezvemhando yerubha zvinhu, tembiricha yevulcanization, uye ukobvu hwechigadzirwa. Iyo yakakwana vulcanization nguva yakatemerwa kuburikidza nekuyedza inogona kuve nechokwadi chekuti zvinhu zverabha zvinowana yakakwana michina zvivakwa uye kuramba kuchembera.
Pakazere, kusarudza mamiriro evulcanization inzira inoda kutariswa kwakadzama kwezvinhu zvakasiyana-siyana semhando yerubha zvinhu, chimiro chechigadzirwa, vulcanization michina, nezvimwewo. Mukugadzirwa chaiko, zvinowanzodikanwa kuita ongororo dzakawanda uye zvishoma nezvishoma kugadzirisa mamiriro evulcanization. kuwana yakanakisa chigadzirwa kuita.
Nguva yekutumira: Jan-09-2024
