Ko te pupuri wai mai i te hydroxypropyl methylcellulose tetahi o nga mea nui o te hydroxypropyl methylcellulose. Ko nga mea penei i te mahana o te hau, te pāmahana me te tere o te pehanga hau ka pa ki te tere o te whakaheke o te wai i roto i te kumete ciment me nga hua mai i te gypsum. No reira, i nga wa rerekee, he rerekee te paanga o te pupuri wai o nga hua me te rite tonu te nui o te hydroxypropyl methylcellulose te taapiri.
Ko te tikanga, ko te teitei ake o te viscosity o te hydroxypropyl methylcellulose, ka pai ake te painga o te pupuri wai, engari ka heke te paanga o te pokey ki te pupuri wai ina neke ake te viscosity ki te 100,000 mpa.s. Mo te hydroxypropyl methylcellulose me te viscosity neke atu i te 100,000, he mea tika ki te whakanui ake i te nui o te hydroxypropyl methylcellulose ki te whakanui ake i te tere o te pupuri wai.
I roto i te hanga motuhake, ka taea te whakarereke i te paanga o te pupuri wai o te slurry ma te whakanui ake, te whakaheke ranei i te nui o te hydroxypropyl methylcellulose. Ka taea e nga hua raupapa Hydroxypropyl methylcellulose te whakaoti i te raruraru o te pupuri wai i raro i te wera nui. I nga wa wera nui, ina koa i nga waahi wera me nga waahi maroke me te hanga angiangi-papa ki te taha paki, ka hiahiatia te hydroxypropyl methylcellulose-kounga teitei hei whakapai ake i te pupuri wai o te slurry.
He tino pai te riterite o te hydroxypropyl methylcellulose. Ko ona roopu methoxyl me te hydroxypropoxyl ka tohatoha ki te taha o te mekameka ngota cellulose. Ka taea te whakapai ake i nga ngota hāora i runga i nga hononga hydroxyl me te ether. Ko te kaha o te whakakotahitanga wai ki te hanga i nga here hauwai ka huri te wai kore ki roto i te wai herea, na reira ka whai hua te whakahaere i te whakaetonga wai i puta mai i te huarere-nui me te pupuri i te wai teitei.
Ka taea e te hydroxypropyl methylcellulose te kounga teitei te marara i roto i te kumete ciment me nga hua e hangaia ana ki te gypsum, te takai i nga matūriki totoka katoa, ka hanga he kiriata makuku, a ka tukuna te makuku i roto i te turanga mo te wa roa. Ka puta mai he tauhohenga whakamakuku me te rauemi whakaraera parakore, na reira ka whakapumau i te kaha o te here me te kaha o te kopiri o te rauemi. Na reira, i roto i te hanga o te raumati wera nui, kia tutuki ai te paanga o te pupuri wai, he mea tika ki te taapiri i nga hua hydroxypropyl methylcellulose kounga teitei i roto i nga rahinga e rite ana ki te tauira, ki te kore, karekau te whakamakuku, ka heke te kaha, ka pakaru mai. ki te whakamaroke nui. Ko nga raru o te kounga penei i te hollowing, hollowing me te hinga ka piki ake te uaua o te hanga mo nga kaimahi. I te hekenga o te pāmahana, ka taea te whakaiti i te nui o te hydroxypropyl methylcellulose kua taapirihia, ka taea te whakatutuki i te painga o te pupuri wai.
Te wa tuku: Apr-13-2023