I-Hydroxypropyl methylcellulose (HPMC) yi-ether ye-cellulose ye-nonionic esetyenziswa ngokubanzi kwiinkqubo ezahlukeneyo zoshishino kunye namayeza. Imisebenzi yayo ephambili ibandakanya i-thickener, ifilimu yangaphambili, i-stabilizer, i-emulsifier, i-agent yokumisa kunye ne-adhesive. I-HPMC isetyenziswa kakhulu kumachiza, kwi-cosmetic, ukutya, izinto zokwakha kunye namanye amashishini. Ukusetyenziswa kwayo kuxhomekeke kwintsimi ethile yesicelo, umphumo ofunekayo wokusebenza, ezinye izithako zokuqulunqa kunye neemfuno ezithile zokulawula.
1. Intsimi yamachiza
Kumalungiselelo amayeza, i-HPMC isetyenziswa rhoqo njenge-ejenti yokukhutshwa ngokuzinzileyo, izinto zokugquma, ifilimu yangaphambili kunye necandelo le-capsule. Kwiipilisi, ukusetyenziswa kwe-HPMC kuphakathi kwe-2% kunye ne-5% yobunzima bubonke ukulawula izinga lokukhululwa kwechiza. Kwiipilisi ezikhutshwa ngokuzinzileyo, ukusetyenziswa kusenokuba phezulu, ukuya kuthi ga kwi-20% okanye ngaphezulu, ukuqinisekisa ukuba iyeza linokukhutshwa kancinci kancinci ixesha elide. Njengesixhobo sokugquma, ukusetyenziswa kwe-HPMC kuhlala phakathi kwe-3% kunye ne-8%, kuxhomekeke kubungakanani obufunekayo bokugquma kunye neemfuno zokusebenza.
2. Ishishini lokutya
Kwishishini lokutya, i-HPMC isetyenziswa rhoqo njenge-thickener, i-emulsifier, i-arhente yokumisa, njl. Isixa esisetyenziswa ekutyeni ngokuqhelekileyo siphakathi kwe-0.5% kunye ne-3%, kuxhomekeke kuhlobo kunye nokuqulunqwa kwemveliso. Ngokomzekelo, kwiziphuzo, iisosi okanye iimveliso zobisi, inani le-HPMC elisetyenzisiweyo lihlala liphantsi, malunga ne-0.1% ukuya kwi-1%. Kwezinye ukutya ezifuna ukunyusa i-viscosity okanye ukuphucula ukuthungwa, njenge-noodle esheshayo okanye iimveliso ezibhakiweyo, inani le-HPMC elisetyenzisiweyo lingaba phezulu, ngokuqhelekileyo phakathi kwe-1% kunye ne-3%.
3. I-Cosmetic Field
Kwizinto zokuthambisa, i-HPMC isetyenziswa ngokubanzi njenge-thickener, i-stabilizer kunye nefilimu yangaphambili kwi-lotions, i-creams, i-shampoos, izithunzi zamehlo kunye nezinye iimveliso. I-dosage yayo ngokuqhelekileyo i-0.1% ukuya kwi-2%, kuxhomekeke kwiimfuno ze-viscosity zemveliso kunye neempawu zezinye izithako. Kwezinye izithambiso ezithile, ezifana neemveliso zokhathalelo lwesikhumba okanye izikhuseli zelanga ezifuna ukwenza ifilimu, isixa se-HPMC esisetyenzisiweyo sinokuba phezulu ukuqinisekisa ukuba imveliso yenza umaleko wokhuselo ofanayo eluswini.
4. Izinto zokwakha
Kwizinto zokwakha, i-HPMC isetyenziswa ngokubanzi kwiimveliso ezifana nesamente, iimveliso ze-gypsum, iipeyinti ze-latex kunye ne-adhesives ye-tile ukuphucula ukusebenza kokwakhiwa kwezinto, ukwandisa ixesha elivulekileyo, kunye nokuphucula iipropati ezichasayo kunye ne-anti-cracking. Isixa se-HPMC esisetyenzisiweyo kwizinto zokwakha sikholisa ukuba phakathi kwe-0.1% kunye ne-1%, ngokuxhomekeke kwiimfuno zokwenziwa. Ngodaka lwesamente okanye izinto zegypsum, inani le-HPMC liyi-0.2% ukuya kwi-0.5% ukuqinisekisa ukuba izinto ezinomsebenzi wokwakha kunye ne-rheology. Kwipeyinti ye-latex, inani le-HPMC lihlala li-0.3% ukuya kwi-1%.
5. Imigaqo nemigangatho
Amazwe ahlukeneyo kunye nemimandla inemimiselo eyahlukeneyo kunye nemigangatho yokusetyenziswa kwe-HPMC. Kwintsimi yokutya kunye namayeza, ukusetyenziswa kwe-HPMC kufuneka kuhambelane nemimiselo yemimiselo efanelekileyo. Ngokomzekelo, kwi-EU nase-United States, i-HPMC ibonwa ngokubanzi njengekhuselekile (i-GRAS), kodwa ukusetyenziswa kwayo kusafuna ukulawulwa ngokweendidi zemveliso ethile kunye nezicelo. Kwimimandla yokwakha kunye nezithambiso, nangona ukusetyenziswa kwe-HPMC kungaphantsi kwemiqathango yolawulo oluthe ngqo, impembelelo enokubakho kwindalo, ukhuseleko lwemveliso kunye nempilo yabathengi kusafuneka kuqwalaselwe.
Akukho mgangatho umiselweyo wesixa se-HPMC esisetyenzisiweyo. Kuxhomekeke kakhulu kwimeko ethile yesicelo, imiphumo efunekayo yokusebenza, kunye nokulungelelaniswa kwezinye izithako zokuqulunqa. Ngokuqhelekileyo, isixa se-HPMC esisetyenzisiweyo sisuka kwi-0.1% ukuya kwi-20%, kwaye ixabiso elithile lifuna ukulungiswa ngokuhambelana noyilo loyilo kunye neemfuno zokulawula. Kwizicelo ezizizo, abasebenzi be-R&D bakholisa ukwenza uhlengahlengiso olusekwe kwidatha yovavanyo kunye namava ukuphumeza eyona mpembelelo ilungileyo yokusetyenziswa kunye nokusebenza kakuhle kweendleko. Kwangaxeshanye, ukusetyenziswa kwe-HPMC kufuneka kuhambelane nemigangatho yeshishini elifanelekileyo kunye nemimiselo yokuqinisekisa ukhuseleko kunye nokuthotyelwa kwemveliso.
Ixesha lokuposa: Aug-19-2024