Zeziphi izinto ezichaphazela ukugcinwa kwamanzi kwi-hydroxypropyl methyl cellulose?

Ukusetyenziswa komgubo weHpmcinokuthi ihlakazwe ngokufanayo kwaye ihlakazeke ngokufanelekileyo kwi-samente yodaka kunye neemveliso ezisekelwe kwi-gypsum, ukugubungela zonke iinqununu eziqinileyo kunye nokwenza ifilimu yokumanzisa. Ukufuma kwisiseko kukhululwa ngokuthe ngcembe kwixesha elide, kwaye kuqhutywe i-hydration reaction kunye ne-inorganic cementitious materials, ngaloo ndlela iqinisekisa amandla okudibanisa kunye namandla oxinzelelo lwemathiriyeli.

Ngoko ke, kwiqondo eliphezulu lokwakhiwa kwehlobo, ukuze kufezekiswe umphumo wokugcinwa kwamanzi, kuyimfuneko ukongeza inani elaneleyoi-hydroxypropyl methyl cellulosengokwefomula, ngaphandle koko iingxaki ezisemgangathweni ezifana nokungonelanga kwe-hydration, amandla ancitshisiweyo, ukuqhekeka, ukugoba, kunye nokuqhawulwa okubangelwa ukomisa ngokukhawuleza kuya kwenzeka, kwaye kuya kwandisa ubunzima babasebenzi ekwakhiweni. Njengoko izinga lokushisa liyancipha, inani le-hydroxypropylmethylcellulose lingancitshiswa ngokuthe ngcembe, kwaye umphumo ofanayo wokugcinwa kwamanzi unokufumaneka.

Ukugcinwa kwamanzi kwi-hydroxypropyl methyl cellulose kuphenjelelwa bubushushu kunye nezi zinto zilandelayo:

1. I-Homogeneity ye-hydroxypropyl methyl cellulose

I-homogeneousi-hydroxypropyl methyl cellulose, Iqela le-Methoxy kunye ne-hydroxypropyl zihanjiswa ngokulinganayo, kwaye izinga lokugcinwa kwamanzi liphezulu.

2. Ubushushu bejeli ye-thermal ye-HPMC

I-gel ye-thermal inokushisa okuphezulu kunye nesantya esiphezulu sokugcinwa kwamanzi; Ngokuchasene noko, izinga lokugcinwa kwamanzi liphantsi.

3. Hydroxypropylmethylcellulosei-viscosity

Xa i-viscosity yeHPMCukwanda, izinga lokugcinwa kwamanzi liyanda; Xa i-viscosity ifikelela kwinqanaba elithile, ukwanda kokugcinwa kwamanzi kudla ngokuthe ngcembe.

4. Imali eyongeziweyo ye-hydroxypropyl methyl cellulose

Ubukhulu bexabiso le-hydroxypropyl methyl cellulose elongeziweyo, liphezulu izinga lokugcinwa kwamanzi kwaye ngcono isiphumo sokugcina amanzi. Kuluhlu lwe-0.25-0.6% yokongezwa, izinga lokugcinwa kwamanzi linyuka ngokukhawuleza ngokunyuka kwexabiso lokongeza; Njengoko isixa-mali esongezelelweyo sisiya sinyuka, indlela eyandayo yokugcinwa kwamanzi iyehla