Hydroxypropyl methyl cellulose i roto i te raima me te raima i runga i te raima

HPMC Hydroxypropyl methyl cellulosei roto i te kumete ciment me te gypsum slurry, te nuinga o te mahi ki te pupuri i te wai me te matotoru, ka taea te whakapai ake i te adhesion me te sag resistance o te slurry.

Ko te pāmahana o te rangi, te pāmahana me te reeti pehanga hau ka pa ki te tere whakaetonga o te wai i roto i te kumete ciment me nga hua gypsum. Na i roto i nga wa rereke, ko te taapiri i te hydroxypropyl methyl cellulose he rite te nui o te hua pupuri wai hua he rereke etahi. I roto i te hanga raima, 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 HPMC. Ko te pupuri wai o te methyl cellulose ether i te pāmahana teitei he tohu nui hei tohu i te kounga o te methyl cellulose ether.

Tino paihydroxypropyl methyl celluloseKa taea e nga hua raupapa te whakaoti i te raruraru o te pupuri wai i raro i te wera nui. I roto i te wa wera nui, ina koa i nga waahi wera me te maroke me te hanga paparanga angiangi i te taha o te ra, ko te hiahia mo te HPMC kounga teitei hei whakapai ake i te pupuri wai o te slurry; hydroxypropyl methyl cellulose (HPMC), he tino pai te tauritenga, he hauhau me te hāora nga roopu hydroxypropyl e tohatoha noa ana i te taha o te mekameka cellulose, ka taea te whakapai ake i te hauwai me te ether hāora me te wai i runga i te puka honohono matua te kaha hononga hauwai, hanga wai kore utu, kia pai ai te whakahaere i te rangi wera na te makuku ki te whakaeto, Te whakatutuki i te pupuri wai teitei.

Ko te kounga teitei o te hydroxypropyl methyl cellulose ka taea te marara i roto i te kumete ciment me nga hua raima, me te kikii i nga matūriki totoka katoa, ka hanga he paparanga o te kiriata makuku, ka tukuna te makuku i roto i te turanga mo te wa roa, me te tauhohenga o te wai pararopi. , kia rite ki te whakarite i te kaha here me te kaha compressive o rauemi.

I roto i te hanganga, ki te whakatutuki i te painga o te tiaki wai, me taapiri te kounga teiteiHPMCnga hua i runga i te tikanga, ki te kore, ka tere rawa te whakamaroke na te iti o te whakamakuku, te whakahekenga o te kaha, te pakaruhanga, te pahū kopapa me te whakaheke i nga raru o te kounga, engari ka piki ake te uaua o te hanga kaimahi. I te hekenga o te pāmahana, ka taea te whakaiti i te nui o te wai HPMC, a ka taea te whakatutuki i taua mana pupuri wai.