I roto i te moata maroke, ko te cellulose ether te tāpiri matua ka taea te whakapai ake i te mahi a te moata mākū me te pā ki te mahi hanga o te moata. Ko te mahi a te methyl cellulose ether he pupuri wai, he whakamātotoru, me te whakapai ake i te mahi hanga. Mā te mahi pupuri wai pai ka kore te moata e whakararu, e paura me te whakaiti i te kaha nā te kore wai me te koretake o te makuku sima; ka nui ake te pānga whakamātotoru. Ka tino piki ake te kaha hanganga o te moata mākū, ā, mā te tāpiri i te methyl cellulose ether ka taea te whakapai ake i te matotoru mākū o te moata mākū, ā, he pai te piri ki ngā momo papa, ka whakapai ake i te mahi a te moata mākū ki te pakitara me te whakaiti i te para; hei tāpiri, he rerekē hoki te mahi a te cellulose i roto i ngā hua, hei tauira: ka taea e te cellulose i roto i ngā piri taera te whakanui ake i te wā whakatuwheratanga me te whakatika i te wā; ka taea e te cellulose i roto i te moata rehu miihini te whakapai ake i te kaha hanganga o te moata mākū; i roto i te whakataurite-ake, ka whai wāhi te cellulose ki te aukati i te taunga, te wehewehe me te wehewehe.
Ko te hanga o te cellulose ether he mea hanga nui mai i ngā muka taiao mā te whakarewatanga alkali, te tauhohenga honohono (etherification), te horoi, te whakamaroke, te huri me ētahi atu tukanga. Ko ngā rauemi mata matua o ngā muka taiao ka taea te wehewehe ki: te muka miro, te muka hita, te muka pīti, me ētahi atu. He rerekē te taumata o te polymerization, ka pā ki te matotoru whakamutunga o ā rātou hua. I tēnei wā, ka whakamahia e ngā kaihanga cellulose nui te muka miro (he hua taha o te nitrocellulose) hei rauemi mata matua. Ka taea te wehewehe i ngā cellulose ether ki te ionic me te kore-ionic. Ko te momo ionic kei roto ko te tote carboxymethyl cellulose, ā, ko te momo kore-ionic kei roto ko te methyl cellulose, te methyl hydroxyethyl (propyl) cellulose, me te hydroxyethyl cellulose. Su me ētahi atu. I roto i te moata paura maroke, nā te mea he kore pumau te cellulose ionic (tote carboxymethyl cellulose) i te aroaro o ngā ion konupūmā, he onge te whakamahinga i roto i ngā hua paura maroke pēnei i te raima kua pania hei rauemi sima.
E pā ana hoki te pupuri wai o te cellulose ki te pāmahana e whakamahia ana. Ka heke te pupuri wai o te methyl cellulose ether i te pikinga o te pāmahana. Hei tauira, i te raumati, ina whiti te rā, ka pania te putty pakitara o waho, ka tere ake te whakamaroke o te sima me te moata. Ko te whakapakeketanga me te hekenga o te tere pupuri wai ka puta te whakaaro mārama kei te pāngia te mahi hanga me te mahi ārai-pakaru. I tēnei take, he mea tino nui kia whakaitihia te awe o ngā āhuatanga pāmahana. I ētahi wā kāore e taea te whakatutuki i ngā hiahia o te whakamahinga. Ka mahia ētahi maimoatanga ki te cellulose, pērā i te whakanui ake i te taumata o te etherification, me ētahi atu, kia pai ake ai te pupuri wai i te pāmahana teitei ake.
Te pupuri wai o te cellulose: Ko ngā mea matua e pā ana ki te pupuri wai o te moata ko te nui o te cellulose i tāpirihia, te matotoru o te cellulose, te matotoru o te cellulose, me te pāmahana o te taiao mahi.
Te matotoru o te cellulose: I te nuinga o te wā, ko te teitei ake o te matotoru, ko te pai ake o te pānga pupuri wai, engari ko te teitei ake o te matotoru, ko te teitei ake o te taumaha ngota o te cellulose, ā, ko te hekenga o tōna wairewa, he pānga kino ki te mahi hanga me te kaha o te moata. Ko te teitei ake o te matotoru, ko te kitea ake o te pānga matotoru ki te moata, engari kāore i te ōrite tika. Ko te teitei ake o te matotoru, ko te matotoru ake o te moata mākū. I te wā hanga, ka piri ki te waru, ā, he piri nui ki te papa, engari kāore e tino āwhina ki te whakanui ake i te kaha hanganga o te moata mākū tonu, ā, kāore e kitea te mahi ārai-totoka i te wā hanga.
Te pai o te cellulose: Ka pā te pai ki te wairewatanga o te cellulose ether. He kirikiri te cellulose matotoru, ā, he ngāwari te marara ki te wai, kāore e whakaemi, engari he puhoi rawa te tere whakarewa. Kāore e pai mō te whakamahi i roto i te moata paura maroke. I hangaia i te kāinga. Ko ētahi o ngā cellulose he flocculent, kāore e ngāwari te marara me te rewa ki te wai, ā, he ngāwari te whakaemi. Ko te paura pai anake ka taea te karo i te whakaemi methyl cellulose ether i te wā e tāpirihia ana te wai me te whakaoho. Engari ko te cellulose ether matotoru ehara i te mea he maumau noa engari ka whakaitihia hoki te kaha ā-rohe o te moata. Ina hangaia he moata paura maroke pēnei i roto i te wāhi nui, ka kitea te hekenga o te tere whakaora o te moata ā-rohe, ā, ka puta ngā pakaru nā ngā wā whakaora rerekē. Nā te poto o te wā whakaranu, me nui ake te pai o te moata hanga miihini.
Wā tuku: 13-Pepuere-2023