Hydroxypropyl Methylcellulose (HPMC) yakabuda sechinhu chakakosha muindasitiri yekuvaka, nekuda kwekusiyana kwayo kwezvivakwa uye mabasa. Chimwe chinhu chakakosha chinopesvedzera kuita kweHPMC mukuvaka zvikumbiro ndeye tembiricha yegel.
Muchirevo chekuvaka, HPMC inoshandiswa kune zvinangwa zvakasiyana-siyana sekuvandudza kushanda kwedhaka, kusimudzira kunamatira kwemachira, uye kudzora kuchengetwa kwemvura kwekongiri musanganiswa. Iyo tembiricha yegel yeHPMC inoita basa rakakosha pakuona kushanda kwayo mumashandisirwo aya.
Semuenzaniso, mune ichangoburwa yakakura-yekutengesa purojekiti yekuvaka yekutengeserana, kusarudzwa kwakashata kweHPMC ine isingaenderane tembiricha yegel yakatungamira kumatambudziko makuru. Tembiricha yegel yaive yakadzikira zvakanyanya kumamiriro ekunze enzvimbo, zvichikonzera kukora zvakanyanya kwedhaka. Izvi zvakaita kuti musanganiswa uome zvakanyanya kuisa zvakaenzana, zvichikonzera kusaenzana kwepamusoro uye kukanganisa kunamatira.
Sezvineiwo, mune imwe chirongwa chekuvaka umo tembiricha yegel yeHPMC yakasarudzwa yakanyatsoenderana nezvinodiwa zvekushandisa uye mamiriro ezvakatipoteredza, mhedzisiro inoshamisa yakawanikwa. Iyo dhaka yairatidza kushanda kwakanakisa, ichibvumira kushandiswa kwakatsetseka uye kwakanaka. Iyo tembiricha yakakodzera yegel zvakare yakave nechokwadi chekuchengetedza kwemvura kwakaringana, kudzivirira kuoma nguva isati yakwana uye kuputika, izvo zvakakonzera kusimba kwepamusoro uye kusimba kwechimiro.
Kana tembiricha yegel yeHPMC iri mukati mehumwe siyana, inogona kuwedzera zvakanyanya mapurasitiki uye kuyerera kwedhaka. Izvi zvinobvumira kushandiswa kuri nyore uye kunovimbisa kuvharika kuri nani pazvivakwa zvekuvaka. Pane tembiricha yakadzika gel, HPMC inogona kuwedzera simba rekuchengetedza mvura yedhaka, kudzivirira kuoma nguva isati yakwana uye kutsemuka, izvo zvakakosha kuti uwane epamusoro bond simba uye kusimba.
Kunyanya kupisa gel tembiricha kunogona kutungamira mukudzikiswa ukobvu kugona, zvichikonzera kusashanda zvakanaka uye kuderera kwekunamatira. Nekune rimwe divi, tembiricha yakadzikira gel inogona kukonzera kukora zvakanyanya, zvichiita kuti musanganiswa uome kubata uye kuisa zvakafanana.
Iyo molecular chimiro uye kuumbwa kweHPMC kunobatsirawo kumhinduro yayo kune tembiricha yegel. Iyo dhigirii yekutsiva uye kugoverwa kwemapoka anoshanda padivi peselulosi musana inokanganisa kupindirana kwepolymer nemvura uye zvimwe zvikamu muzvigadzirwa zvekuvaka, nekudaro zvichipesvedzera nzira yegelation.
Kuti uwedzere kuita kweHPMC mukuvaka, kunyatsonzwisisa uye kutonga kwekushisa kwegel kunodiwa. Izvi zvinoda kunyatsosarudzwa kwemagiredhi eHPMC zvichienderana nezvinodiwa zveprojekiti yekuvaka uye kuita bvunzo dzakakwana pasi pemamiriro akadzorwa.
Muchidimbu, tembiricha yegel yeHPMC chinhu chakakosha chinokanganisa zvakanyanya kuita kwayo mukuvaka. Ruzivo rwakakwana rwehukama uhwu runogonesa vashandi vekuvaka kuti vatore sarudzo vaine ruzivo uye kuwana zvemhando yepamusoro uye zvinogara pakuvaka zvinovaka.
Nguva yekutumira: Aug-06-2024