IHydroxypropyl methyl cellulose (HPMC) luhlobo lwe-cellulose oluxubeneyo lwe-ether oluphuma, umthamo kunye nomgangatho okhule ngokukhawuleza kwiminyaka yakutshanje.I-cellulose engekho i-ionic exutywe i-ether eyenziwe ngezinye iinkqubo.
I-HPMC ineepropati ezilungileyo zokusasazwa, i-emulsifying, i-thickening, i-cohesive, ukugcina amanzi kunye ne-gum.Iyanyibilika emanzini, kwaye inokunyibilika kwi-ethanol kunye ne-acetone engaphantsi kwe-70%.I-HPMC enesakhiwo esikhethekileyo nayo inokunyibilika ngokuthe ngqo kwi-ethanol.I-HPMC ingasetyenziswa ngokubanzi njengotyatyazo lwefilimu, iarhente yokukhululwa ezinzileyo kunye ne-binder kumalungiselelo amayeza, kwaye ingasetyenziswa ngokubanzi kwi-petrochemicals, izixhobo zokwakha, iiseramikhi, amalaphu, ukutya, imichiza yemihla ngemihla ngokusebenzisa ukutyeba kwayo, ukusasaza, ukumilisela kunye nokwenza ifilimu. iipropati., intlaka eyenziweyo, iyeza, ipeyinti kunye ne-electronics kunye nezinye iinkalo.
Inkqubo yemveliso ye-HPMC inokwahlulwa ibe ngamacandelo amabini: indlela yesigaba segesi kunye nendlela yesigaba solwelo.Okwangoku, amazwe aphuhlileyo anje ngeYurophu, iUnited States kunye neJapan asebenzisa inkqubo yegesi engaphezulu, esebenzisa intlama yeenkuni njengento ekrwada (i-cotton pulp isetyenziselwa ukuvelisa iimveliso ezine-viscosity ephezulu), i-alkalization kunye ne-etherification zenziwa ngendlela efanayo. izixhobo, kwaye impendulo ephambili kukusabela oxwesileyo.Iketile ineshafti eshukumayo esembindini kunye nemela ejikelezayo ejikelezayo eyenzelwe ngokukodwa ukuveliswa kwe-cellulose ether, enokufumana isiphumo esihle sokuxuba.
Abahlalutyi boshishino abavela eXinsijie bathi ngokukhula okuqhubekayo koqoqosho kunye nokuphuculwa okuqhubekayo komgangatho wobomi babantu, imfuno yehydroxypropyl methylcellulose kwimarike yaseTshayina iqhubekile nokukhula.Ixesha elide, imfuno yemalike yelizwe lam ye-hydroxypropyl methylcellulose igxininiswe kakhulu kwimimandla yokwakha kunye neengubo.Ngophuhliso oluqhubekayo lwamashishini asezantsi, imfuno ye-hydroxypropyl methylcellulose kwiindawo zokutya kunye namayeza sele iqalile ukwanda ngokukhawuleza.Kwixesha elizayo, ulwakhiwo, ukutya kunye namashishini amayeza aya kuba yeyona nto ibalulekileyo yokuqhuba ukukhula kwemarike yelizwe lam yehydroxypropyl methylcellulose.
Ixesha lokuposa: Nov-03-2022