IHydroxypropyl methylcellulosekunye ne-viscosity ye-100,000 ngokuqhelekileyo yanele kwi-putty powder, ngelixa udaka lunemfuno ephezulu ye-viscosity, ngoko i-viscosity ye-150,000 kufuneka ikhethwe ukuze isetyenziswe kangcono. Owona msebenzi ubalulekileyo weihydroxypropyl methylcellulosekukugcina amanzi, kulandele ukujiya. Ngoko ke, kwi-putty powder, ngokude nje ukugcinwa kwamanzi kufezekiswa, i-viscosity ephantsi iyamkeleka. Ngokuqhelekileyo, ukuphakama kwe-viscosity, kungcono ukugcinwa kwamanzi, kodwa xa i-viscosity idlula i-100,000, umphumo we-viscosity ekugcinweni kwamanzi ayibalulekanga.
IHydroxypropyl methylcelluloseyahlulahlulwe ngokubanzi ngokwezi ndidi zilandelayo ngokwe viscosity:
1. I-viscosity ephantsi: i-cellulose ye-viscosity ye-400, eyona nto isetyenziselwa udaka lokuzimela.
I-viscosity ephantsi, i-fluidity enhle, emva kokuyongeza iya kulawula ukugcinwa kwamanzi angaphezulu, i-seapage yamanzi ayibonakali, i-shrinkage incinci, i-cracking iyancitshiswa, kwaye iyakwazi ukumelana ne-sedimentation, iphucula i-fluidity kunye nokumpompa.
2. I-viscosity ephakathi-phantsi: i-20,000-50,000 i-viscosity cellulose, isetyenziselwa kakhulu iimveliso ze-gypsum kunye ne-caulking agents.
I-viscosity ephantsi, ukugcinwa kwamanzi, ukusebenza kakuhle kokwakhiwa, ukongezwa kwamanzi okuncinci.
3. I-viscosity ephakathi: i-75,000-100,000 i-viscosity cellulose, isetyenziselwa ngokukodwa kwi-putty yodonga lwangaphakathi nangaphandle.
I-viscosity ephakathi, ukugcinwa kakuhle kwamanzi, ukwakhiwa kakuhle kunye nezakhiwo zokuxhoma
4. I-viscosity ephezulu: i-150,000-200,000, isetyenziselwa ikakhulu kwi-polystyrene particle insulation mortar glue powder kunye ne-vitrified micro-bead insulation mortar. I-viscosity ephezulu, ukugcinwa kwamanzi aphezulu, udaka alulula ukuwa, ukuhamba, ukuphucula ukwakhiwa.
Ngokuqhelekileyo, okukhona i-viscosity iphezulu, ngcono ukugcinwa kwamanzi. Ngoko ke, abaninzi abathengi baya kukhetha ukusebenzisa i-cellulose ye-viscosity ephakathi (75,000-100,000) endaweni ye-cellulose ye-viscosity ephakathi (20,000-50,000) ukunciphisa inani elongezelelweyo kwaye ngaloo ndlela ulawule iindleko.
IHydroxypropyl methylcellulose (HPMC)yipolima yesemisynthetic edla ngokusetyenziswa kumashishini ahlukeneyo, kubandakanya ulwakhiwo, amayeza, kunye nemveliso yokutya. I-viscosity ye-HPMC yipropati ebalulekileyo emisela ukusebenza kwayo kwizicelo ezahlukeneyo.
I-viscosity ye-HPMC iphenjelelwa yimiba efana neqondo lokutshintshela (DS), ubunzima bemolekyuli, kunye noxinzelelo lwesisombululo se-HPMC. Ngokubanzi, njengoko iqondo lokuthatha indawo kunye nobunzima bemolekyuli ye-HPMC inyuka, kunjalo ke i-viscosity yayo.
I-HPMC ifumaneka kuluhlu lwamabakala e-viscosity, ngokuqhelekileyo umlinganiselo wayo "molekyuli" okanye "umxholo we-methoxyl." I-viscosity ye-HPMC inokuguqulwa ngokukhetha ibakala elifanelekileyo okanye ngokulungelelanisa ukuxinana kwesisombululo se-HPMC.
Kwizicelo zokwakha, i-HPMC ene-viscosity ephezulu ihlala isetyenziselwa ukuphucula ukusebenza kunye nokugcinwa kwamanzi kwizinto ezisekelwe kwi-samente. Kwimichiza, i-viscosity yinto ebalulekileyo ekulawuleni izinga lokukhululwa kwezithako ezisebenzayo ekuqulunqweni kweziyobisi.
Ke ngoko, ukuqonda i-viscosity ye-hydroxypropyl methylcellulose ibalulekile ekukhetheni ibakala elifanelekileyo kwizicelo ezithile kunye nokuqinisekisa iimpawu zokusebenza ezifunwayo.
Ixesha lokuposa: May-30-2024