Ka taea e te Hydroxypropyl methylcellulose HPMC te whakapai ake i te pupuri wai o te moata. Ina 0.02% te nui o te tāpiri, ka piki ake te tere pupuri wai mai i te 83% ki te 88%; ko te nui tāpiri he 0.2%, ko te tere pupuri wai he 97%. I taua wā anō, ka whakaitihia hoki e te iti o te HPMC te tere paparanga me te rere o te moata, e tohu ana ka taea e te HPMC te whakapai ake i te pupuri wai o te moata, engari ka whakapai ake hoki i te piripono o te moata, he mea tino pai ki te ōritetanga o te kounga hanga moata.
Heoi, he pānga kino tō te hydroxypropyl methylcellulose HPMC ki te kaha piko me te kaha pēhi o te moata. Mēnā ka nui ake te nui o te HPMC ka tāpirihia, ka heke haere te kaha piko me te kaha pēhi o te moata. I taua wā anō, ka taea e te HPMC te whakanui ake i te kaha kume o te moata. Mēnā he iti iho i te 0.1% te nui o te HPMC, ka piki ake te kaha kume o te moata me te nui ake o te horopeta HPMC. Mēnā he nui ake i te 0.1%, kāore e tino piki ake te kaha kume. Hydroxypropyl Methyl
Ka whakanuia hoki e te cellulose HPMC te kaha o te here o te moata. Nā te 0.2% HPMC i whakanui ake te kaha o te here o te moata mai i te 0.72 MPa ki te 1.16 MPa.
Kua whakaatuhia e ngā rangahau ka taea e te HPMC te whakaroa ake i te wā whakatuwheratanga o te moata, kia tino whakaitihia ai te nui o te moata e taka ana, he tino painga tēnei mō te hanganga here taera. Ina kore te HPMC e whakaranua, ka heke te kaha here o te moata mai i te 0.72 MPa ki te 0.54 MPa i muri i te 20 meneti, ā, ko te kaha here o te moata me te 0.05% me te 0.1% HPMC ka wehea ki te 0.8 MPa me te 0.84 MPa i muri i te 20 meneti. Ina kore te HPMC e whakaranua, ko te paheke o te moata he 5.5mm. Mā te pikinga o te ihirangi HPMC, ka heke tonu te paheke. Ina 0.2% te horopeta, ka heke te paheke o te moata ki te 2.1mm.
Wā tuku: Maehe-03-2022