Me pēhea te whiriwhiri i te hydroxypropyl methylcellulose mō te moata pāreti?

Ko te uara pH whānui o ngā hua gypsum he waikawa, he koretake rānei. Inaianei e rua ngā momo taumata hangahanga.hydroxypropyl methylcellulosekei te mākete: te cellulose puhoi-rewa me te cellulose inamata (S). Kāore te cellulose inamata e pai mō ngā pūnaha gypsum. Ngā hua, he tino ngoikore te wairewa i raro i ngā āhuatanga waikawa, ā, ka taea te rewa te hydroxypropyl methylcellulose puhoi-rewa i roto i ngā hua gypsum, engari he ngoikoretanga nui tō te cellulose puhoi-rewa, he ngāwari ki te whakakotahi (ina whakaohokia te gypsum i muri i te whakaoho i te moata ki te pakitara mō te wā poto, ka puta he ira iti i runga i te mata). I tēnei wā, i roto i ngā hua gypsum, inā koa i roto i te moata gypsum i rehuhia e te mīhini, me tino marara te cellulose ether me te rewa i roto i te wā poto rawa, e hiahia ana kia whakahaerehia e mātou he rangahau hohonu mō te tukanga whakaputa cellulose ether puhoi-rewa. Te maimoatanga mata (ehara i te mea e kiia nei ko te tāpiri i ētahi atu tāpiritanga ki te cellulose ether noa), kia urutau ai ki te pūnaha moata gypsum. Ka taea e te Hydroxypropyl methylcellulose ether me te maimoatanga mata hohonu te whai wā rewa pumau me ngā āhuatanga miihini pai i roto i te moata gypsum, ā, ka taea te whakapai ake i te tukanga whakataurite me te whakaoti i te moata.

Ko te moata gypsum rehuhia e te mīhini he tikanga whānui te whakamahi i te hydroxypropyl methylcellulose ether he iti te matotoru i waenga i te 20,000 me te 75,000, ā, ko te nui o te tāpiri he tikanga whānui 0.2% ki te 0.4%. Ko te wā whakatakoto o te moata gypsum rehuhia e te mīhini ka whakahaeretia i te 1 hāora pea. Ka whakamahia e mātou te ahotea hua moata gypsum, te matotoru kirihou, te thixotropy, te rheology me te ōritetanga o te paru hei aromatawai i te mahi a ngā hua moata gypsum.

Ka whakaarohia e mātou te mana kounga o te tukanga whakapūkara pūtake gypsum desulfurization, ngā whakakī (sima, te konganuku pai, te paura konupūmā taumaha) me ngā tāpiringa (ka taea te whakamahi i roto i te paura rapa marara, te hydroxypropyl methyl cellulose ether, te perlite whānui, te aukati gypsum). Ko te kōwhiringa o te tauira hua whānui he utu-whai hua.

Te hauota hydroxypropyl methyl cellulose etherhe tino parakore te moata gypsum, ā, he pai te mahi, ā, kua whakanuia whānuitia e ngā kiritaki moata gypsum.