1 Kupu Whakataki
He whānuitia te whakamahinga o te cellulose ether (MC) i roto i te umanga rauemi hanga whare, ā, he nui te whakamahinga. Ka taea te whakamahi hei aukati, hei pupuri wai, hei whakamātotoru me te piri. I roto i te moata maroke-whakaranu noa, te moata whakamahana pakitara o waho, te moata whakataurite-ake, te piri taera, te putty hanga mahi-teitei, te putty pakitara o roto me waho ātete-ngatata, te moata maroke-whakaranu ā-wai, te parai gypsum, te kaihoko whakapiri me ētahi atu rauemi, he mahi nui tā ngā cellulose ether. He pānga nui tā te cellulose ether ki te pupuri wai, te hiahia wai, te piri, te whakaroa me te hanganga o te pūnaha moata.
He maha ngā momo me ngā whakaritenga o ngā etera cellulose. Ko ngā etera cellulose e whakamahia whānuitia ana i roto i te ao hanga ko te HEC, HPMC, CMC, PAC, MHEC, me ētahi atu, e whakamahia ana i roto i ngā pūnaha moata rerekē e ai ki ō rātou āhuatanga. Kua rangahau ētahi tāngata mō te awe o ngā momo rerekē me ngā rahinga rerekē o te etera cellulose ki te pūnaha moata sima. Ka arotahi tēnei tuhinga ki tēnei kaupapa, ā, ka whakamārama me pēhea te whiriwhiri i ngā momo rerekē me ngā whakaritenga o ngā etera cellulose i roto i ngā hua moata rerekē.
2 Ngā āhuatanga mahi o te cellulose ether i roto i te moata sima
Hei ranunga nui i roto i te moata paura maroke, he maha ngā mahi a te cellulose ether i roto i te moata. Ko te mahi nui a te cellulose ether i roto i te moata sima ko te pupuri i te wai me te whakamātotoru. Hei tāpiri, nā tana taunekeneke ki te pūnaha sima, ka taea hoki e ia te whai wāhi atu ki te kukume i te hau, te whakaroa i te whakatakoto, me te whakapai ake i te kaha o te here kume.
Ko te mahi tino nui a te cellulose ether i roto i te moata ko te pupuri wai. Ka whakamahia te cellulose ether hei ranunga nui i roto i te nuinga o ngā hua moata, nā te mea he pupuri wai. I te nuinga o te wā, ko te pupuri wai o te cellulose ether e pā ana ki tōna matotoru, te nui o te tāpiri me te rahi o te matūriki.
Ka whakamahia te cellulose ether hei whakamātotoru, ā, ko tōna pānga whakamātotoru e pā ana ki te taumata whakamātotoru, te rahi o te matūriki, te matotoru me te taumata whakarerekētanga o te cellulose ether. I te nuinga o te wā, ko te teitei ake o te taumata whakamātotoru me te matotoru o te cellulose ether, ko te iti ake o ngā matūriki, ko te kitea ake o te pānga whakamātotoru. Mā te whakarerekē i ngā āhuatanga o runga ake nei o te MC, ka taea e te moata te whakatutuki i te mahi ārai-totoka e tika ana me te matotoru pai rawa atu.
I roto i te cellulose ether, ka whakaitihia te kaha o te mata o te wairewa kei roto te cellulose ether mā te whakaurunga o te alkyl, kia whai pānga hopu hau te cellulose ether ki te moata sima. Mā te whakaurunga o ngā mirumiru hau e tika ana ki roto i te moata ka whakapai ake i te mahi hanga o te moata nā te "pānga pōro" o ngā mirumiru hau. I taua wā anō, ka whakanuia e te whakaurunga o ngā mirumiru hau te tere putanga o te moata. Me whakahaere te nui o te hopu hau. Ka pā kino te nui rawa o te hopu hau ki te kaha o te moata, nā te mea ka uru pea ngā mirumiru hau kino.
2.1 Ka whakaroa te cellulose ether i te tukanga whakamakuku o te sima, ka whakaroa i te tukanga whakatakoto me te whakapakeke o te sima, ā, ka roa ake te wā whakatuwheratanga o te moata, engari kāore tēnei pānga i te pai mō te moata i ngā rohe makariri. I te wā e whiriwhiri ana i te cellulose ether, me whiriwhiri te hua tika i runga i te āhuatanga motuhake. Ko te pānga whakaroa o te cellulose ether ka whānuitia mā te pikinga ake o tōna tohu etherification, te tohu whakarerekētanga me te matotoru.
Hei tāpiri, ko te cellulose ether, hei matū pūmua mekameka-roa, ka taea te whakapai ake i te mahi here ki te papa i muri i te tāpiri atu ki te pūnaha sima i raro i te kaupapa o te pupuri i te ihirangi makuku o te paru.
2.2 Ko ngā āhuatanga o te cellulose ether i roto i te moata ko: te pupuri wai, te whakamātotoru, te whakaroa i te wā whakatakoto, te hopu hau me te whakapai ake i te kaha here kume, me ētahi atu. E rite ana ki ngā āhuatanga o runga ake nei, ka kitea i roto i ngā āhuatanga o te MC tonu, arā: te matotoru, te pumau, te nui o ngā matū hohe (te nui tāpiri), te nui o te whakakapinga etherification me tōna ōritetanga, te nui o te whakarerekētanga, te nui o ngā matū kino, me ētahi atu. Nō reira, i te wā e whiriwhiri ana i te MC, me whiriwhiri te cellulose ether me ōna ake āhuatanga ka taea te whakarato i te mahi tika kia rite ki ngā whakaritenga motuhake o te hua moata motuhake mō tētahi mahi motuhake.
3 Ngā āhuatanga o te cellulose ether
I te nuinga o te wā, ko ngā tohutohu hua e whakaratohia ana e ngā kaihanga cellulose ether ka uru atu ki ēnei tohu: te āhua, te matotoru, te nui o te whakakapinga rōpū, te pai, te ihirangi matū hohe (parakore), te nui o te makuku, ngā wāhi me te horopeta e taunakitia ana, me ētahi atu. Ka taea e ēnei tohu mahi te whakaata i tētahi wāhanga o te mahi a te cellulose ether, engari i te whakataurite me te whiriwhiri i te cellulose ether, me tirotirohia hoki ētahi atu āhuatanga pēnei i tōna hanganga matū, te nui o te whakarerekētanga, te nui o te etherification, te nui o te NaCl, me te uara DS.
3.1 Te matotoru o te cellulose ether
Ka pā te matotoru o te cellulose ether ki tōna pupuri wai, ki tōna matotoru, ki tōna whakaroa me ētahi atu āhuatanga. Nō reira, he tohu nui tēnei mō te tirotiro me te whiriwhiri i te cellulose ether.
I mua i te kōrero mō te matotoru o te cellulose ether, me mōhio e whā ngā tikanga e whakamahia whānuitia ana mō te whakamātautau i te matotoru o te cellulose ether: Brookfield, Hakke, Höppler, me te rotational viscometer. He rerekē ngā taputapu, te kukū o te otinga me te taiao whakamātautau e whakamahia ana e ngā tikanga e whā, nō reira he tino rerekē hoki ngā hua o te otinga MC kotahi i whakamatautauria e ngā tikanga e whā. Ahakoa mō te otinga kotahi, mā te whakamahi i te tikanga kotahi, ka whakamātautau i raro i ngā āhuatanga taiao rerekē, ko te matotoru
He rerekē anō hoki ngā hua. Nō reira, i te whakamārama i te matotoru o te cellulose ether, me tohu ko tēhea tikanga e whakamahia ana mō te whakamātautau, te kukū o te otinga, te rotor, te tere hurihuri, te pāmahana me te haumākū whakamātautau me ētahi atu āhuatanga taiao. He mea nui tēnei uara matotoru. Kāore he tikanga o te kī noa "he aha te matotoru o tētahi MC".
3.2 Te Pūmautanga o te Hua o te Cellulose Ether
E mōhiotia ana he ngāwari ngā etera cellulose ki te whakaekehia e ngā pokepokea ai te cellulose. Ina whakahoroa e te harore te etera cellulose, ka whakaekea tuatahitia e ia te waeine huka kore-etera i roto i te etera cellulose. Hei matū raina, ina whakangaromia te waeine huka, ka pakaru te mekameka ngota katoa, ā, ka heke tere te matotoru o te hua. I muri i te whakaetera o te waeine huka, e kore e waikura ngāwari te mekameka ngota e te pokepokea ai. Nō reira, ko te teitei ake o te taumata o te whakakapinga etera (uara DS) o te etera cellulose, ko te teitei ake o tōna pumau.
3.3 Te nui o ngā matū hohe o te cellulose ether
Ko te nui ake o ngā matū hohe i roto i te cellulose ether, ko te nui ake o te utu o te hua, kia pai ake ai ngā hua me te horopeta ōrite. Ko te matū whai hua i roto i te cellulose ether ko te ngota cellulose ether, he matū rauropi. Nō reira, ina tirohia te ihirangi matū whai hua o te cellulose ether, ka taea te whakaata ā-korekore e te uara pungarehu i muri i te whakapūkara.
3.4 Te nui o te NaCl i roto i te cellulose ether
Ko te NaCl he hua taha kore e taea te karo i roto i te hanga o te cellulose ether, e hiahiatia ana kia tangohia mā te horoinga maha, ā, ki te roa ake te wā horoi, ka iti ake te NaCl e toe ana. He tūponotanga rongonui te NaCl ki te waikura o ngā pae rino me ngā mata waea rino. Nō reira, ahakoa ka piki ake te utu mā te horoinga NaCl i ngā wā maha, me whakapau kaha tātou ki te whiriwhiri i ngā hua he iti ake te ihirangi NaCl.
4 Ngā mātāpono mō te whiriwhiri i te cellulose ether mō ngā hua moata rerekē
I te wā e whiriwhiri ana i te cellulose ether mō ngā hua moata, tuatahi, kia rite ki te whakaahuatanga o te pukapuka hua, tīpakohia ōna ake tohu mahi (pēnei i te matotoru, te tohu o te whakakapinga etherification, te ihirangi matū whai hua, te ihirangi NaCl, me ētahi atu). Ngā āhuatanga mahi me ngā mātāpono kōwhiringa
4.1 Pūnaha paraikete angiangi
Hei tauira, ko te moata pārā o te pūnaha pārā angiangi, nā te mea ka pā tika te moata pārā ki te taiao o waho, ka tere te ngaro o te wai i te mata, nō reira me nui ake te tere pupuri wai. Ina koa i te wā hanga i te raumati, me pai ake te pupuri o te moata i te makuku i te pāmahana teitei. Me whiriwhiri te MC me te tere pupuri wai teitei, ka taea te whakaaro whānui mā roto i ngā āhuatanga e toru: te matotoru, te rahi o te matūriki, me te nui o te tāpiri. I raro i ngā āhuatanga ōrite, whiriwhiria te MC me te matotoru teitei ake, ā, me whakaaro ki ngā whakaritenga o te mahi, kaua e tino teitei te matotoru. Nō reira, me nui te tere pupuri wai o te MC kua tīpakohia, me iti hoki te matotoru. I roto i ngā hua MC, ka taea te tūtohu i te MH60001P6 me ētahi atu mō te pūnaha pārā piri o te pārā angiangi.
4.2 Moata parai i runga i te sima
Me pai te ōritetanga o te moata mō te paninga moata, ā, he māmā ake te paninga ōrite i te wā e pania ana. I taua wā anō, me pai te mahi ārai-totoka, te kaha papu teitei, te rere me te ngāwari ki te mahi. Nō reira, ka tīpakohia te MC he iti ake te matotoru, he tere ake te horapa me te whanaketanga ōrite (ngā matūriki iti ake) i roto i te moata sima.
I roto i te hanganga o te piri tāera, kia pai ai te haumaru me te whai huatanga, me roa ake te wā whakatuwheratanga o te moata, me pai ake te mahi ārai-paheke, ā, i te wā kotahi me pai te hononga i waenga i te papa me te tāera. Nō reira, he nui ngā whakaritenga mō te MC mō ngā piri tāera. Heoi, he nui te ihirangi o te MC i roto i ngā piri tāera. I te wā e whiriwhiri ana i te MC, kia roa ake te wā whakatuwheratanga, me nui ake te tere pupuri wai o te MC, ā, me tika te matotoru, te nui tāpiri me te rahi matūriki mō te tere pupuri wai. Hei whakatutuki i te mahi ārai-paheke pai, he pai te pānga matotoru o te MC, kia kaha ai te ātete rere poutū o te moata, ā, he whakaritenga mō te mahi matotoru mō te matotoru, te tohu whakapūmau me te rahi matūriki.
4.4 Moata whenua whakaōrite-ake
He nui ake ngā whakaritenga mō te mahi whakataurite o te moata, nō reira he pai te whiriwhiri i ngā hua cellulose ether iti-matotoru. Nā te mea me whakataurite aunoa te moata ki te whenua, me tere te rere me te kaha ki te papu, nō reira he nui te ōwehenga o te wai ki te rauemi. Hei ārai i te toto, me whakahaere te MC i te pupuri wai o te mata, me whakarato hoki i te matotoru hei ārai i te whakatō.
4.5 Moata pereki
Nā te mea ka pā tika te moata pereki ki te mata o te pereki, he hanganga paparanga matotoru te nuinga. Me kaha te mahi a te moata me te pupuri wai, ā, ka taea hoki e ia te whakarite i te kaha piri ki te pereki, te whakapai ake i te mahi, me te whakanui ake i te whai huatanga. Nō reira, me taea e te MC kua tīpakohia te āwhina i te moata ki te whakapai ake i te mahi o runga ake nei, ā, kaua e tino teitei te matotoru o te cellulose ether.
4.6 Parai whakamahana
I te mea he mea pani te nuinga o te wā ki te paru whakamahana mā te ringaringa, me āhei te MC kua tīpakohia ki te whakarato i te pai o te mahi, te pai o te mahi me te pupuri wai pai ki te moata. Me whai āhuatanga anō hoki te MC o te matotoru teitei me te kaha ki te uru ki te hau.
5 Whakamutunga
Ko ngā mahi a te cellulose ether i roto i te moata sima ko te pupuri wai, te whakamātotoru, te pupuri hau, te whakaroa me te whakapai ake i te kaha o te here kume, me ētahi atu.
Wā tuku: Hanuere-30-2023