Te tikanga whakamātotoru ote hauwaitoiretiri pūtauKo te whakanui ake i te matotoru mā te hanganga o ngā here hauwai i waenga i ngā ngota me ngā here ā-roto i ngā ngota, me te whakamākūkū me te whakararuraru mekameka o ngā mekameka ngota. Nō reira, ka taea te wehewehe i te tikanga whakamātotoru o te hydroxyethyl cellulose ki ngā āhuatanga e rua: ko te tuatahi ko te mahi a ngā here hauwai i waenga i ngā ngota me ngā here ā-roto i ngā ngota. Ka hono te mekameka matua hydrophobic ki ngā ngota wai e karapoti ana mā roto i ngā here hauwai, ka whakapai ake i te rere o te polymer tonu. Ka whakaitihia e te rahinga o ngā matūriki te wāhi mō te nekehanga noa o ngā matūriki, ā, ka whakanui ake i te matotoru o te pūnaha; tuarua, mā te whakararuraru me te taupatupatu o ngā mekameka ngota, ka noho ngā mekameka cellulose i roto i te hanganga whatunga toru-ahu i roto i te pūnaha katoa, ā, ka whakapai ake i te matotoru.
Me titiro tātou ki te mahi a te cellulose i roto i te pumau o te pūnaha rokiroki: tuatahi, ko te mahi a ngā hononga hauwai ka aukati i te rere o te wai kore utu, ka whai wāhi ki te pupuri wai, ā, ka āwhina i te aukati i te wehenga o te wai; tuarua, ko te taunekeneke o ngā mekameka cellulose. Ko te hononga honohono ka hanga he whatunga honohono, he wāhi motuhake rānei i waenganui i ngā tae, ngā whakakī me ngā matūriki emulsion, e ārai ana i te taunga.
Mā te whakakotahitanga o ngā momo mahi e rua i runga ake nei ka taea ai tete hauwaitoiretiri pūtaukia tino pai te kaha ki te whakapai ake i te pumau o te rokiroki. I roto i te hanga peita rapa, ka piki ake te HEC i tāpirihia i te wā e whiua ana, e horapa ana me te pikinga o te kaha o waho, ka piki ake te tere kutikuti, ka whakaritea ngā ngota i roto i te ahunga tika e rite ana ki te ahunga rere, ā, ka whakangaromia te pūnaha takai i waenga i ngā mekameka ngota, ka ngawari te paheke tetahi ki tetahi, ka heke te matotoru o te pūnaha. Nā te mea he nui ngā wāhanga kē atu o te pūnaha (ngā tae, ngā whakakī, ngā whakaehu), kāore e taea e tēnei whakaritenga tika te whakahoki mai i te āhua honohono me te taupatupatu ahakoa ka whakanohoia mō te wā roa i muri i te whakaranu i te peita. I tēnei wā, ka whakawhirinaki noa a HEC ki ngā here hauwai. Ko te pānga o te pupuri wai me te matotoru ka whakaiti i te whai huatanga o te matotoru oHEC, ā, ka whakaitihia hoki te takoha o tēnei āhua marara ki te pumau o te rokiroki o te pūnaha. Heoi, i marara ōrite te HEC rewa i roto i te pūnaha i te tere whakaoho iti iho i te wā tukunga iho, ā, kāore i tino pakaru te hanganga whatunga i hangaia e te hononga whakawhiti o ngā mekameka HEC. Nō reira, e whakaatu ana i te pai ake o te matotoru me te pumau o te rokiroki. He mārama, ko te mahi tahi o ngā tikanga matotoru e rua te kaupapa o te matotoru pai o te cellulose me te whakarite i te pumau o te rokiroki. Arā, ko te āhua rewa me te marara o te cellulose i roto i te wai ka tino pā ki tōna pānga matotoru me tōna takoha ki te pumau o te rokiroki.
Wā tuku: Paenga-whāwhā-25-2024