Methyl hydroxyethyl cellulose (MHEC)He etera cellulose kore-ionic e whakamahia whānuitia ana i roto i ngā pūnaha moata hanga. Nā tōna matotorutanga pai, te pupuri wai, te ngāwari ki te mahi me te hototahi, kua riro te MHEC hei tētahi o ngā tāpiringa tino nui i roto i te moata maroke-ranu, inā koa i roto i te piripiri taera, te moata paraikete, te moata papa, te moata whakataurite-ake me ētahi atu hua.
1. Te tikanga mahi a MHEC ki te kumete
Hei rauemi pūmua wairewa-wai, ka taea e te MHEC te hanga i tētahi wairewa wai matotoru, i tētahi kōroiti rānei i roto i te moata. Ina tāpirihia ki te moata maroke-ranu, ā, ka pā ki te wai, ka tere te whakamakuku me te rewa o te MHEC, ā, ka pā ki ngā āhuatanga rheological o te moata, te tukanga whakamakuku sima, te pupuri wai me ngā āhuatanga hononga. Ko tōna tikanga mahi matua ko ēnei ngā mea e whai ake nei:
Pānga whakamātotoru: Ka hangaia e te MHEC he otinga matotoru teitei i muri i te whakarewanga ki te wai, ka taea te whakanui ake i te matotoru o te pūnaha moata, ā, ka whakapai ake i te āhua hanga me ngā āhuatanga ārai-totoka;
Pānga pupuri wai: He tino pai te kaha pupuri wai o te MHEC, ka taea te whakaiti i te ngaronga o te wai whakaranu, te whakarite kia makuku katoa te sima, te gypsum me ētahi atu rauemi sima, me te whakapai ake i te whanaketanga kaha;
Te whakahinuhinu me te whakapai ake i te mahi hanga: Ka whakaratohia e ngā ngota cellulose ether he momo whakahinuhinu i roto i te pūnaha moata, e whai hua ana ki te tono me te horapa o te moata, ā, ka whakapai ake i te whai huatanga o te hanga;
Pānga pumau mirumiru: Ka taea e te MHEC te pumau i ētahi mirumiru i te wā e whakaranua ana, ā, mā te nui o ngā mirumiru moroiti e tika ana ka taea te whakapai ake i te mahi me te pupuri wai o te moata;
Te whakaroa i te totohu: He pānga whakaroa tō te MHEC ki te makuku o te sima, ā, ka āwhina tēnei ki te whakaroa i te wā mahi.
2. Whakapai ake i te mahi moata e te MHEC
2.1. Te whakapai ake i te mahi hangahanga
Ko te mahi hanga moata he tohu matua hei ine i tōna ngāwari ki te whakamahi. Ka whakapai ake te MHEC i te piri me te hinu o te moata mākū, kia māmā ake ai te hanga. Ina koa i roto i te piri taera me te moata paraikete, ka taea e ia te whakaiti i te totohu me te whakapai ake i te ōritetanga o te tono.
2.2. Te whakapai ake i te mahi pupuri wai
Ko te pupuri wai tētahi o ngā āhuatanga matua o te MHEC. I roto i ngā papa porous (pērā i ngā pereki me te raima) i ngā taiao maroke pāmahana teitei rānei, ka tere te mimiti o te wai, ka mimiti rānei, ka tere te mimiti, ka pā ki te tauhohenga waikura o te sima. Ka mau tonu te MHEC i te makuku mā te hanga i tētahi kiriata wai, ka whakaiti i te turuturu me te mimiti o te wai, me te whakapai ake i te kaha me te piri o te moata.
2.3. Te kaha o te hononga kua whakapaitia
Ka whakapai ake te MHEC i te ōritetanga me ngā āhuatanga makuku o te moata, ka hanga he hanganga hononga pumau ake i waenga i te moata me te papa me ngā rauemi mata (pērā i ngā taera), ka āwhina i te whakapai ake i te kaha o te piri. Ina koa i roto i ngā piripiri taera mahi-teitei, ka taea e te MHEC te mahi tahi me ngā whakamomona polymer (pērā i te paura rapa ka taea te whakamarara anō).
2.4. Whakapai ake i te mahi ārai-heke
I te hanganga o te mata o te whare, ka ngāwari te piko o te moata nā te kaha o te kaha, ka pā ki te whakahaere matotoru me te ataahua. He tino pai te mahi ārai-piko a te MHEC, e āhei ai te moata ki te pupuri i tōna āhua i runga i te pakitara, he mea tino nui tēnei mō ngā taera nunui me ngā paparanga matotoru.
2.5. Whakapai ake i te pumau o te rokiroki me te rere o te paura maroke
He pai te horapa o te paura maroke me te ōritetanga o te ranunga o te MHEC kounga teitei, kāore e ngāwari ki te haaputuputu, ā, he pai mō te hanganga pumau me te rokiroki roa o ngā hua moata.
3. Ngā āhuatanga whakamahinga o te MHEC i roto i ngā pūnaha moata rerekē
Piripiri Tāera
Ka whakapai ake te MHEC i te mahi hanga, te mahi ārai-paheke me te wā tuwhera, ā, ka whakarei ake i te piri ki ngā taera.
Pāreti Mota
Whakapai ake i te maeneene o te waru, te pupuri i te wai, me te ārai i te paura me te ngatata.
Moata Papa
Whakapai ake i te rere me te mahi whakataurite-ake kia ōrite ai te matotoru o te whakatakotoranga.
Mota Whakataurite-ā-koe
Whakahaerehia te rere o te wai, ārai i te wehewehe, ā, kia papatahi te mata.
Mota Whakamarumaru Wera
I roto i ngā pūnaha whakamahana māmā, ka whakarite te MHEC i te tohatoha ōrite o te paru, ka whakapai ake i te hononga me te pupuri wai.
4. Ngā whakatūpato mō te whakamahinga
Te whakahaere i te nui tāpiri: Ko te nui tāpiri o te MHEC he 0.2%~0.5% te tikanga, me whakarerekē kia rite ki te tauira me ngā whakaritenga hanga;
Ngā whakaritenga marara: Kia tino whai hua ai, me marara ōrite te MHEC i te wā e whakaranua ana;
Te hototahitanga ki ētahi atu tāpiringa: Me aro nui ki te mahi tahi a te MHEC me te paura rapa, te aukati, te tango pahuka me ētahi atu tāpiringa hei karo i te awe tahi.
Ko te Methyl hydroxyethyl cellulose, he cellulose ether me te mahi tino pai, e whakaatu ana i te uara mahi tino pai i roto i te pūnaha moata. Ehara i te mea ka whakapai ake i te mahi hanga, te pumau ā-tinana me te kaha whakamutunga o te moata anake, engari he mahi nui anō hoki ki te whakatairanga i te ahumahi me te matomato o ngā hua moata maroke-whakaranu. I te whanaketanga o ngā rauemi hanga ki te mahi teitei me te tiaki taiao,ka whānui ake, ka hōhonu ake te whakamahinga o te MHEC.
Wā tuku: Pipiri-26-2025