Te Paanga o te Hydroxypropyl Methyl Cellulose HPMC ki te Wa Whakataunga o te Raima

Ko te waahi o te waahi o te raima e tino pa ana ki te wa waahi o te ciment, a kaore i te nui te awe o te whakahiato. Na reira, ko te paanga o te hydroxypropyl methylcellulose HPMC i runga i te wa whakatuu o te ranunga raima kore-kore ki raro i te wai ka taea te ako i roto i te wa whakatakoto o te kumete. Mai i te wa o te waahi o te moata e pa ana ki te wai, hei aromatawai i te paanga o te HPMC i runga i te wa waahi o te moata, me whakatika te tauwehenga wai-ciment me te waahanga moata o te moata.

Ko nga hua whakamatautau e whakaatu ana ko te taapiri o te hydroxypropyl methylcellulose HPMC he nui te paheketanga ki te ranunga moata, a ka roa te wa tautuhi o te moata me te piki o te nui o te hydroxypropyl methylcellulose. I roto i te ahua o nga ihirangi HPMC, ko te moata i hangaia i raro i te wai he pai ake i te moata i hangaia i te hau. He roa ake te hanga o te hangahanga waenga. Ina ine ki te wai, ka whakatauritea ki te tauira patea, ko te wa whakatuu tuatahi o te kumete i konatunatua ki te hydroxypropyl methylcellulose i whakaroa mo te 6-18 haora, a ko te wa whakatuu whakamutunga i whakaroa e 6-22 haora. Na reira, me whakamahi te HPMC me nga kaihoko kaha moata.

Ko te HPMC he waerau ngota teitei me te hanganga raina macromolecular. Ko tana roopu mahi he roopu hydroxyl, ka taea te hanga i nga here hauwai me nga ngota ngota wai whakauru me te whakanui ake i te pokey o te wai whakauru. Ko nga mekameka ngota roa o te HPMC ka kukume tetahi ki tetahi, ka hono nga ngota ngota HPMC ki te hanga i te hanganga whatunga, te takai sima me te whakaranu wai. I te mea ka hangaia e te HPMC he hanganga whatunga penei i te kiriata ki te takai i te sima, ka taea e ia te aukati i te whakaheke o te wai i roto i te kumete, me te aukati, te whakaheke ranei i te tere o te whakamakuku o te sima.