Ko te pupuri i te wai ko te mehua o te HPMC hydroxypropyl methylcellulose te whakamahi ano, ko te mahi pupuri wai o te pai me te kino hoki e pa ana ki te maha o nga kaihanga o te whare o te kumete maroke, ina koa te pāmahana teitei o te aro ki te wheketere ki te tonga, i te wa ano, he maha nga take e pa ana ki nga paanga. o te wai moata paura maroke, penei i te taapiri i te rōrahi, te viscosity, te pai o te matūriki tae atu ki te whakamahinga o te taiao, te pāmahana, aha atu.
I roto i te tukanga kumete maroke-whakaranu i mua i te ranunga, he iti te taapiri o te hydroxypropyl methyl cellulose. Ahakoa he iti te moni taapiri, ka taea e ia te whakapai ake i te mahi o te kumete maku, he taapiri matua ano hoki e pa ana ki te mahi hanga o te kumete. Na reira, ko te kowhiringa mohio me te whaitake o te cellulose ether me nga momo rama rereke, rereke rereke, rereke matūriki pai me te nui o te taapiri he nui te awe ki te whakapai ake i nga mahi moata kua oti te whakaranu maroke.
Mo te taiao whare o naianei, he maha nga mahi moata me te raima moata kaore i te pai, ko te waahi ata noho mo etahi meneti ka waiho hei wehenga slurry wai, ko te pupuri wai ko te hydroxypropyl methylcellulose ether he mahi nui, he wai-wairewa cellulose ether i roto i te He nui ake te mahi o te kumete kua oti te whakauru, ko te mahi o te mata matua he toru, kotahi, He pai te mahi pupuri wai, tuarua, ko te awe ki runga i te riterite me te thixotropy o te kumete kua oti te whakauru, tuatoru, ko te awe o te taunekeneke ki te sima. . Hydroxypropyl methylcellulose mahi pupuri wai te nuinga tei runga i te turanga o te wai absorption, te hanganga o te kumete, te matotoru paparanga kumete, me te moata whakaritenga wai, me te wa tōhau o te rauemi tōhau, mo te cellulose ether te pupuri wai whaiaro, te nuinga i te memehatanga tūturu me te matewai. o te celluloseetere.
Hydroxypropyl methylcellulose whai wāhi nui i roto i te tukanga o te kumete maroke-whakaranu rite-whakaranu, e taea te whai wāhi i roto i te pupuri wai, thickening, whakaroa te mana hydration o ciment, a taea te whakapai ake i te mahi o te hanga. Ko te pai o te pupuri i te wai ka taea te whakamaarama i te hydration sima, ka taea te whakapai ake i te pokey makuku o te kumete maku, kia pai ake ai te kaha hononga o te kumete, engari ka taea hoki te whakatika i te waa. Ko te taapiri i te hydroxypropyl methylcellulose ether i roto i te tukanga o te moata kua oti te whakauru maroke ka taea te whakapai ake i te mahi hanga o te kumete, ka taea te whakapai ake i te kaha o te hanganga, kia whakamahia nuitia i roto i te waahi o te tono moata.
Wā tuku: Tihema-23-2021