Yazisa:
IHydroxypropylmethylcellulose (HPMC) yikhompawundi enemisebenzi emininzi esetyenziswa kakhulu kumashishini aliqela ngenxa yeempawu zayo ezahlukeneyo eziluncedo.I-derivative ye-cellulose, efunyenwe ngokuguqulwa kweekhemikhali i-cellulose kunye nepropylene oxide kunye ne-methyl chloride.I-HPMC isetyenziswa ngokubanzi kumashishini amayeza, ukutya, ulwakhiwo kunye nezithambiso ngenxa yeempawu zayo ezibalaseleyo zokugcina amanzi.Eli phepha libonelela ngohlalutyo olunzulu lokusebenza kokugcinwa kwamanzi kwe-HPMC.
Ugcino lwamanzi lwe-HPMC:
Iipropati zokugcina amanzi ze-HPMC sesinye sezizathu ezibalulekileyo zokusetyenziswa kwayo ngokubanzi kumashishini amaninzi.I-HPMC inomthamo ophezulu wokugcina amanzi ngenxa yobume bayo be-hydrophilic.Ifunxa amanzi kwaye idumbe ukuya kumaxesha amaninzi ubukhulu bayo bokuqala, iyenza ibe yeyona ndawo ibalaseleyo yokugcina amanzi.Ukugcinwa kwamanzi kwiipropati ze-HPMC kuxhomekeke kwizinto ezininzi ezifana neqondo lokutshintshela, i-viscosity yesisombululo se-HPMC, kunye nohlobo lwesinyibilikisi esisetyenzisiweyo.
Iqondo lokutshintsha:
Iqondo lokubeka endaweni (DS) ye-HPMC yinto ebalulekileyo echaphazela ukusebenza kwayo kokugcinwa kwamanzi.I-DS ye-HPMC ibhekisa kwinani lamaqela e-hydroxyl afakwe endaweni ye-hydroxypropyl kunye namaqela e-methyl kwi-molecule ye-cellulose.I-HPMC eneqondo eliphezulu lokutshintsha inomthamo ophezulu wokugcina amanzi kune-HPMC eneqondo elisezantsi lokutshintsha.I-DS ephezulu ye-HPMC yonyusa i-hydrophilicity ye-molecule, ekhokelela kugcino lwamanzi olungcono.
Viscosity yesisombululo se-HPMC:
I-viscosity yesisombululo se-HPMC yenye into echaphazela ukusebenza kokugcinwa kwamanzi kwe-HPMC.I-viscosity yesisombululo se-HPMC iyanda ngokunyuka koxinzelelo lwe-HPMC kwi-solvent.Ngenxa yobukho beemolekyuli ezininzi ze-HPMC kwi-solvent, iphezulu i-viscosity yesisombululo se-HPMC, ngcono umthamo wokugcinwa kwamanzi.Izisombululo ze-viscosity eziphezulu ze-HPMC zenza i-gel-efana nesakhiwo esibamba iimolekyuli zamanzi kwaye zithintele ukuba zingabi ngumphunga.
Uhlobo lwesinyibilikisi esisetyenzisiweyo:
Uhlobo lwe-solvent esetyenziselwa ukulungisa isisombululo se-HPMC sinokuchaphazela iimpawu zokugcinwa kwamanzi.I-HPMC iyanyibilika emanzini kunye nezinyibilikisi ezahlukeneyo zezinto eziphilayo, ezinjengeealkoholi, ii-esters, kunye neeketones.I-solvent esetyenziselwa ukulungisa isisombululo se-HPMC sinokuchaphazela ukuziphatha kokudumba kwe-molecule.I-HPMC idumba ngakumbi emanzini kwaye ifunxa amanzi amaninzi kune-HPMC kwizinyibilikisi eziphilayo.Xa kuthelekiswa nezisombululo ze-organic solvent, i-HPMC ineempawu ezingcono zokugcina amanzi kwizisombululo ezinamanzi.
Ukusetyenziswa kweHPMC kumashishini ahlukeneyo:
Ngenxa yeempawu zayo ezibalaseleyo zokugcina amanzi, i-HPMC isetyenziswa kakhulu kumashishini aliqela afana namayeza, ukutya, ukwakhiwa kunye nezithambiso.
Umzi mveliso wamachiza:
Kushishino lwamayeza, i-HPMC isoloko isetyenziswa njenge-binder, i-disintegrant kunye ne-ejenti yokugquma.Isetyenziswa njenge-binder ekulungiseleleni ithebhulethi ukubamba izithako kunye.Njenge-disintegrant, i-HPMC inceda ukuqhekeza ithebhulethi ibe ngamasuntswana amancinci esiswini, ephucula ukufunxwa kwechiza.I-HPMC isetyenziselwa ukugquma ukukhusela ichiza kubumanzi kunye nokulawula ukukhutshwa kweziyobisi.
ishishini lokutya:
Kwishishini lokutya, i-HPMC isetyenziswa njenge-emulsifier, i-stabilizer kunye ne-thickener.Isetyenziselwa ukwenza i-oyile kunye nolwelo olusekwe emanzini, ukuzinzisa ukutya, kunye nokuqinisa iisosi kunye neegravies.I-HPMC ikwasetyenziswa njengesizalisi ukongeza isambuku ekutyeni.
Ishishini lokwakha:
Kushishino lokwakha, i-HPMC iqhele ukusetyenziswa kwizinto ezisekwe kwisamente ezifana nodaka kunye nekhonkrithi.Isetyenziswa njengesixhobo sokugcina amanzi ukuthintela ukuphuphuma kwamanzi kumxube wesamente.I-HPMC inokuphucula nokusebenza komxube wesamente kunye nokunciphisa ukuqhekeka kwezinto.
Ishishini lezithambiso:
Kushishino lwezithambiso, i-HPMC isetyenziswa njenge-thickener, i-emulsifier kunye ne-ejenti yokulungisa.Isetyenziselwa ukujiya ii-lotions kunye ne-creams, i-emulsify ioli kunye nezithako ezisekelwe emanzini, kunye neenwele zemeko.
ukuququmbela:
Ukuqukumbela, ipropathi yokugcinwa kwamanzi ye-HPMC yenye yezona zinto zibalulekileyo kwaye zinenzuzo.I-HPMC inomthamo ophezulu wogcino lwamanzi ngenxa yobume bayo be-hydrophilic, eyenza ukuba ifunxe kwaye igcine amanzi kwaye iwathintele ekubeni abe ngumphunga.Iqondo lokutshintshwa, isisombululo se-viscosity kunye nohlobo lwe-solvent esetyenzisiweyo zizinto ezibalulekileyo ezichaphazela ukusebenza kokugcinwa kwamanzi kwe-HPMC.I-HPMC isetyenziswa kakhulu kumashishini ahlukeneyo afana namayeza, ukutya, ulwakhiwo kunye nezinto zokuthambisa ngenxa yeempawu zayo ezibalaseleyo zokugcina amanzi.
Ixesha lokuposa: Jul-19-2023