Te Whakahaere i te Kukū o te Ethylene i roto i te Hanganga Rapa
He rapa hangai he elastomer i hangaia e te tangata i hangaia mai i ngā hua taha hinu. He maha ngā whakamahinga mō ngā mahi pēnei i ngā rāngai motuka -- ngā potae, ngā tatau me ngā matapihi. Ko te tango monomer mata ko te whakamahine i ēnei wāhanga hinu - mā roto i ngā tukanga pēnei i te pakaru naphtha me te whakatō - hei pure i ngā monomer e whai ana, nā te mea ka whakararuraru ngā poke i te tauhohenga polymerization e whai ake nei. Ko ngā monomer kua purea ka puta he 99.5% neke atu rānei, e whakatakoto ana i te turanga mō te hanga rapa.
Ko te taahiraa whakaputa matua ko te whakapūhui: ka konatunatua ngā monomer kua purea ki ngā mea whakaoho, ka whakamararatia ki te wai, ka whakarewaina rānei ki ngā whakarewa waro. Mā tēnei tukanga ka hurihia ngā ngota monomer iti hei mekameka pūhui roa, ka puta he rapa mata me te ihirangi warowaihā rapa o te 80–90%. Ko te taahiraa whai muri ko te whakapūhui, te wāhi e tāpirihia ai te whanariki, ngā peroxide rānei, ka whakamahanahia hei hanga hononga whakawhiti i waenga i ngā mekameka pūhui—he tino ngohengohe, he piri rawa hoki te rapa kāore i whakapūhuitia, kāore e whai hua. I te tīmatanga, he 95–98% te parakore o te pūhui o te rapa whakapūhuitia, engari mō ngā tono mahi-teitei, me whakapai ake anō.
Te Uauatanga o te Ine i te Kukū o te Ethylene
I roto i te hanga rapa, inā koa mō te monomer ethylene-propylene-diene (EPDM) me te rapa ethylene-propylene (EPR/EPM) rānei, he mea nui te ine tika i te kukū ethylene hei whakahaere i te tere o te polymerization, hei whakarite i ngā āhuatanga polymer ōrite, me te whakaiti i te para.
He Tirohanga Whānui mō te Tukanga Hanga Rapa
Ko te hanganga rapa mō te EPDM/EPR e whai wāhi ana ki:
Tukunga Rauemi WhāngaiKa whāngaihia te ethylene me te propylene (me te diene mō te EPDM) hei hau ki roto i te tauhohenga, he maha ngā wā ka rewa i roto i te whakarewa, ka puritia rānei i roto i ngā āhua hau/wai.
Tauhohenga WhakapūhuiHe CSTR, he tauhohenga koropiko rānei, ka tauhohe ngā monomer ki ngā whakakorikori i te 30-90°C me te 10-30 pae, ka hanga he mekameka polymer.
Whakaora Whakarewa/MonomeraKa tangohia ngā monomer kāore i tauhohe, ka hangarua, ka horoia rānei, mā te whakakorenga matū, mā te pahu mura rānei.
Te whakaotiKa wehea te polymer, ka horoia, ka tukuna ki waho, me ngā tirotiro kounga mō te mātotoru me te matotoru o Mooney.
He monomer nui te ethylene i roto i te hanganga rapa, he rauemi mata matua i roto i te umanga hinu-matū. Ko te kukū o tēnei monomer i roto i te ipu tauhohenga e whakatau tika ana i te tere o te polymerization, ā, nō reira, ko ngā āhuatanga ā-tinana me te matū o te polymer whakamutunga, pērā i te taumaha ngota me te pāmahana rewa. Ina kore e tino whakahaerehia te kukū ethylene, ka taea e te polymer hua te whakaatu i te polydispersity kāore e taea te whakahaere, ka arahi ki te tohatoha whānui o ngā taumaha ngota me te kounga hua whakamutunga kāore i te ōrite. Hei tauira, he whanaungatanga rārangi kei waenganui i te pikinga o te pēhanga ethylene me te ihirangi ethylene i roto i ngā copolymer kua hangaia, ka pā ki te pāmahana rewa o rātou.
He pānga pūtea tika, ā, he pānga kitea hoki tēnei rerekētanga o te kounga hua. Hei whakarite kia tutuki i ia puranga hanga ngā whakaritenga kounga iti rawa, he maha ngā wā ka whakamahia e ngā kaiwhakahaere he tikanga e mōhiotia ana ko te "whakapuaki kounga". Kei roto i tēnei ko te whakaputa ā-tauira i tētahi hua me ngā āhuatanga kounga e hipa ana i ngā whakaritenga e hiahiatia ana, arā, ko te hanga rawa i te tukanga hei utu mō te rerekētanga o te ine me te whakahaere. Ko tēnei mahi, i te wā e whakarite ana i te whakaaetia o te hua, ka arahi tika ki te pikinga o te whakamahinga rauemi mata, te whakamahinga pūngao teitei ake, me ngā wā huringa roa ake, ka puta katoa ēnei ki ngā utu whakahaere nui me te hekenga o ngā tawhē hua. Ko te pūtake o tēnei raruraru ehara i te hapa o te tukanga matū tonu, engari he hapa i roto i te porowhita ine me te whakahaere wā-tūturu e whakahaere ana i a ia, ka arahi ki te aratau mahi tauhohe kaua ki te mahi matatau.
Kōrero ki tā mātou tohunga hei aromatawai i ō hiahia whakahaere.
Otinga Ine Kukū Ronnmeter Tonu
Kāore e pai te tātaritanga tuimotu tuku iho i roto i te taiwhanga mō ngā tono hihiri, tonu o tētahi raina whakaputa hou. He maha ngā wā ka whakaroa te tātaritanga me te ine mahi nui. Arā, ko ngā raraunga ka riro i ngā kaiwhakahaere he whakaahua poto o te tukanga mai i ngā meneti, i ngā hāora rānei. Ko te kore mōhiohio ka puta he rerekētanga kounga i muri i te putanga mai, ā, i muri pea i te pakaru o tētahi puranga katoa, ka hua ake he para utu nui me te mahi anō.
Nā Lonnmeter i hangate kukū o te pūoko ethylenekia tutuki ai te ine kukū tika i te wā tūturu i roto i tētahi tukanga matū tonu. He pai te mahi ahakoa i roto i tētahi taiao e tere ana te huri; Ko te mita kukū ethylene ipurangi he taputapu taumata-ahumahi i hangaia hei aro atu ki ngā whakaritenga ine tika o ngā tukanga matū. Ka whakamahia e ia ngā hangarau pūoko matatau -- he pūtake tohu oro hei whakaoho i tētahi marau whakahāngai whakarewa, ka meinga te marau kia wiri i tōna auau haruru tūturu. He mea nui, he hononga tika tēnei auau haruru ki te mātotoru o te wai e pā ana ki te marau whakahāngai. Muri iho, ka taea te whakatau i te mātotoru o te wai mā te tātari auau - me te whakatinanatanga o te utu pāmahana hei ārai i te nekehanga pāmahana i roto i te pūnaha, hei whakarite i te tika o te ine.
Hanganga Marau Whakatū
Ngā Whakatakotoranga Tāutanga i roto i te Tukanga Hanga Rapa
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Raina Whāngai MonomerWhakanohoia te pūoko ki roto i te paipa whāngai ethylene i muri i te pēhi-whakapūmau hei whakarite i te parakore me te whakatika i te inenga.
Tomokanga TauhohengaTāutahia te hexane/propylene ki te pūwāhi whakaranu monomer-solvent hei whakahaere i te ethylene rewa.
I roto i te PūtauhohengaWhakanohoia ki roto i te CSTR tata ki te kaiwhakaoho hei whakahaere i te whakakotahitanga wā-tūturu.
Raina Whakamahi AnōWhakatūria ki te putanga o te pahu rama hei whakapai ake i te whakaora ethylene kāore i tauhohe.
Raina PūhaumāotaWhakamaua ki te raina horoi/pūhau hei aroturuki i ngā tukunga me te whakarite i te haumaru.
Ako atu mō ā mātou hua
Ngā Painga i Kawea Mai e te Mita Kukū Ethylene Inline
●Mā te aroturukitanga wā-tūturu ka tika te whakahaere o te ethylene, ka whakapai ake i te kounga o te polymer me te whakaiti i ngā panga puranga.
●Ka whakakore i te nui rawa o te horopeta, ka penapena i te ethylene.
●Ka arotau i te whakaora monomer i roto i ngā raina hangarua.
●Ka kitea ngā āhuatanga rerekē mō te tiaki matapae.
●He iti te tiaki.
