I-MHEC LH 620M

I-EipponCell MHEC LH 620M i-methyl hydroxyethyl cellulose isetyenziswa kwi-gypsum slurry ukubonelela ngesiphumo esibonakalayo sokuqina.Kwiqondo lokushisa kwegumbi, njengoko i-viscosity kunye ne-dosage ye-cellulose ether inyuka, umphumo wayo wokuqina ubonakala ngakumbi.Nangona kunjalo, njengoko iqondo lobushushu linyuka, i-viscosity ye-cellulose ether iyancipha, okukhokelela ekunciphiseni umphumo wayo wokujiya.Oku kukhokelela ekwehleni koxinzelelo lokucheba isivuno, i-viscosity yeplastiki, kunye ne-pseudoplasticity yomxube wegypsum, ekugqibeleni kukhokelela ekusebenzeni kakubi.

I-ether ye-cellulose iphucula ukugcinwa kwamanzi kwi-gypsum.Nangona kunjalo, njengoko iqondo lokushisa lisanda, ukugcinwa kwamanzi kwi-gypsum elungisiweyo kuncipha kakhulu kwaye kude kuphulukane ngokupheleleyo nesiphumo sokuphucula ukugcinwa kwamanzi kwi-60 °C.Izinga lokugcinwa kwamanzi kwi-gypsum slurry liphuculwe kakhulu nge-cellulose ether, kwaye izinga lokugcinwa kwamanzi ngokuthe ngcembe lifikelela kwinqanaba lokunyuka kunye nokunyuka komxholo we-HPMC eguqulelwe kwi-gypsum slurry ene-viscosities eyahlukeneyo.Ngokuqhelekileyo, ukugcinwa kwamanzi e-gypsum kuhambelana ne-viscosity ye-cellulose ether, kodwa kunempembelelo encinci kwi-viscosity ephezulu.

Utshintsho ekugcinweni kwamanzi e-cellulose ethers kunye neqondo lokushisa lihambelana ngokusondeleyo kwi-microscopic morphology ye-cellulose ethers kwisigaba solwelo.Kwinqanaba elithile, i-cellulose ether idla ngokudibanisa kwaye yenze imibutho emikhulu ye-colloidal, ivimbela ngokufanelekileyo imigudu yokuhambisa amanzi yomxube we-gypsum ukufezekisa ukugcinwa kwamanzi okusebenzayo.Nangona kunjalo, njengoko iqondo lokushisa liphakama, iipropati ze-thermal gelation ze-cellulose ether zibangela ukuba imibutho emikhulu ye-colloidal eyenziwe ngaphambili iphinde ihlakazeke, okubangela ukuhla kokugcinwa kwamanzi.