Ka taea e Hydroxypropyl methylcellulose HPMC te whakapai ake i te pupuri wai o te kumete.Ina 0.02% te nui o te taapiri, ka piki te reiti pupuri wai mai i te 83% ki te 88%;ko te nui o te taapiri he 0.2 %, ko te utu pupuri wai ko te 97%.I te wa ano, ko te iti o te HPMC ka tino whakaiti i te stratification me te whakaheke toto o te moata, e tohu ana kaore e taea e te HPMC te whakapai ake i te pupuri i te wai o te moata, engari ka tino whakapai ake i te whakakotahitanga o te moata, he mea tino pai. he painga ki te riterite o te kounga hanga moata.
Heoi ano, he paanga kino te HPMC hydroxypropyl methylcellulose ki runga i te kaha flexible me te kaha compressive o te moata.Na te pikinga o te nui o te taapiri o te HPMC, ka heke haere te kaha flexible me te kaha compressive o te moata.I te wa ano, ka taea e HPMC te whakanui ake i te kaha o te moata.Ina iti iho te nui o te HPMC i te 0.1%, ka piki te kaha o te kumete ki te pikinga o te inenga HPMC.Ka nui ake te rahinga ki te 0.1%, kare e tino piki ake te kaha o te riipene.Hydroxypropyl Methyl
Ko te Cellulose HPMC ka whakanui ake i te kaha here o te moata.Ko te 0.2% HPMC i piki ake te kaha here o te moata mai i te 0.72 MPa ki te 1.16 MPa.
Kua whakaatuhia e nga rangahau ka taea e te HPMC te whakanui ake i te wa whakatuwheratanga o te moata, na te mea ka tino heke te nui o te moata e hinga ana, he mea tino pai mo te hanga hononga tile.Ki te kore e whakakotahihia te HPMC, ka heke iho te kaha here o te moata mai i te 0.72 MPa ki te 0.54 MPa i muri i te 20mins, me te kaha here o te moata me te 0.05% me te 0.1% HPMC ka wehe ke te 0.8 MPa me te 0.84 MPa i muri i te 20mins.Ki te kore te HPMC e hanumi, ko te 5.5mm te paheke o te moata.Na te pikinga o te ihirangi HPMC, ka heke tonu te pahekeheke.Ina 0.2% te horopeta, ka heke te paheketanga o te moata ki te 2.1mm.
Wā tuku: Maehe-03-2022