I-industrial grade hydroxypropyl methylcellulose esetyenziselwa udaka (apha ibhekisa kwiselulosi esulungekileyo, ngaphandle kweemveliso ezilungisiweyo) yahlulahlulwe nge-viscosity, kwaye la mabanga alandelayo asetyenziswa ngokuqhelekileyo (iyunithi yi-viscosity):
I-viscosity ephantsi: 400
Ikakhulu isetyenziselwa udaka lokuzilinganisa; i-viscosity iphantsi, nangona ukugcinwa kwamanzi kubi, kodwa ipropati yokulinganisa ilungile, kwaye ubuninzi bomdaka buphezulu.
I-viscosity ephakathi kunye nephantsi: 20000-40000
Isetyenziswa kakhulu kwi-adhesives ye-tile, i-caulking agents, i-anti-cracking mortars, i-thermal insulation bonding mortars, njl.; ulwakhiwo oluhle, amanzi amancinci, ukuxinana kodaka oluphezulu.
I-viscosity ephakathi: 75000-100000
Isetyenziswa kakhulu kwi-putty; ukugcinwa kakuhle kwamanzi.
I-viscosity ephezulu: 150000-200000
Isetyenziselwa ikakhulu i-polystyrene particle thermal insulation mortar rubber powder kunye ne vitrified microbead thermal insulation mortar; i-viscosity iphezulu, udaka alulula ukuwa, kwaye ukwakhiwa kuphuculwe.
Kwizicelo eziphathekayo, kufuneka kuqatshelwe ukuba kwiindawo ezinomahluko omkhulu weqondo lokushisa phakathi kwehlobo nobusika, kucetyiswa ukuba kusetyenziswe i-viscosity ephantsi kakhulu ebusika, ehambelana nokwakhiwa. Ngaphandle koko, xa iqondo lokushisa liphantsi, i-viscosity ye-cellulose iya kwanda, kwaye ukuvakalelwa kwesandla kuya kuba nzima xa kukhuhla.
Ngokuqhelekileyo, okukhona i-viscosity iphezulu, ngcono ukugcinwa kwamanzi. Ukuqwalasela iindleko, iifektri ezininzi zodaka ezinomileyo zithatha indawo ye-cellulose ye-viscosity ephakathi kunye nephantsi (20000-40000) kunye ne-medium-viscosity cellulose (75000-100000) ukunciphisa inani lokongezwa. Iimveliso zodaka kufuneka zikhethwe kubenzi besiqhelo kwaye zichongwe.
Ubudlelwane phakathi kwe-viscosity kunye nobushushu be-HPMC:
I-viscosity ye-HPMC ihambelana ngokungafaniyo neqondo lokushisa, oko kukuthi, i-viscosity iyanda njengoko ubushushu buyancipha. I-viscosity yemveliso esidla ngokubhekisela kuyo ibhekiselele kwisiphumo sovavanyo lwesisombululo sayo se-aqueous ye-2% kwiqondo lokushisa lama-20 degrees Celsius.
Ixesha lokuposa: Mar-06-2023