Dzina lachi China la HPMC ndi hydroxypypyl. Siyopanda ionic ndipo nthawi zambiri imagwiritsidwa ntchito ngati wothandizira madzi osakanikirana. Ndi zinthu zomwe zimagwiritsidwa ntchito kwambiri kumatope. Chinthu chopangidwa ndi polysaccharide chopangidwa ndi kupembedza ndi kukwaniritsidwa. Palibe woyang'anira, sachita ndi ma iyo olipiritsa mu zinthu zowonda, ndipo amakhala ndi zingwe. Mtengo wake umakhalanso wotsika kuposa mitundu ina ya cellose et, motero amagwiritsidwa ntchito kwambiri matope osakaniza.
Ntchito ya hydroxypypyl methylcellulose (imatha kukulira matope osakanizika kuti akhale ndi mafayilo ena onyowa komanso kupewa tsankho. . .
Makutu apamwamba a hydroxypropyll methylcellulose ether, abwinopo omwe amasunga madzi. Pazinthu zomwezo, chidwi cha mafayilo omwe chimayesedwa ndi njira zosiyanasiyana ndizosiyana kwambiri, ndipo ena amakhala ndi kusiyana pang'ono. Chifukwa chake, poyerekeza mawonekedwe, ziyenera kuchitika pakati pa njira zomwezi, kuphatikizapo kutentha, rotor, etc.
Ponena za tinthu tating'onoting'ono, ndimalimbikitsa tinthu tating'onoting'ono, kusungirako kwamadzi. Zitafika zambiri za ma cellulose ether ether amalumikizana ndi madzi, malowo amasungunuka ndipo amapanga gel kuti mukulungitse mamolekyulu amadzi kuti asalowe pansi. Nthawi zina sizingafanane mosiyanasiyana ndikusungunuka ngakhale poyambitsa kwa nthawi yayitali, ndikupanga njira yopingasa kapena yovuta. Imakhudza kwambiri kusungira kwamadzi kwa maselo a cellulose, ndipo solobose ndi imodzi mwazinthu zomwe zimasankha cellulose ether ether ether ether. Ubwino ndi mndandanda wofunikira wa methyl cellulose ether. MC yomwe imagwiritsidwa ntchito pa matope a ufa imafunikira kuti ikhale ufa, wokhala ndi madzi ochepa, ndipo zabwino zimafunikiranso 20% -60% ya kukula kwa 63um. Ubwino umakhudza kusungunuka kwa hydroxypropyll methylcellulose ether. Coarsing MC nthawi zambiri amakhala granular, ndipo ndikosavuta kusungunuka m'madzi popanda kuphatikizika, koma kuchuluka kwa chilengedwe ndiodekha kwambiri, kotero sioyenera kugwiritsa ntchito matope a ufa wa ufa. Mu matope a ufa wa ufa, MC imabalalitsidwa pakati pa zida zophatikizira monga kuphatikizika, fillet yabwino kwambiri ndi simenti, ndipo ufa wokwanira umatha kupewa methyl celluuse posakanikirana ndi madzi.
Nthawi zambiri, mafakiti apamwamba, abwinobwino amadzisungira madzi. Komabe, mafayilo apamwamba komanso okwera kwambiri olemera a MC, kutsika kolingana mu kusungunuka kwake kumabweretsa zovuta pa mphamvu ndi matope omanga matope. Maonekedwe ake, zoonekeratu kuti zimakula kwambiri patavala matope, koma siyofanana mwachindunji. Matope owoneka bwino, ndiye kuti, pomanga, amawonetsedwa ngati kumamatira ku starpiper ndi kutsatira kwakukulu kwa gawo lapansi. Koma sizothandiza kukulitsa mphamvu ya matonthozo onyowa. Ndiye kuti, pomanga, magwiridwe antchito a Anti-Anti-A Anti-Shag sichidziwika. M'malo mwake, sing'anga zina zapakati komanso zochepa koma kusinthidwa methyl cellose celluse kukhala ndi ntchito yabwino kwambiri pokonzanso mphamvu ya matope onyowa.
Kusunga kwamadzi kwa HPMC kumakhudzananso ndi kutentha komwe kumagwiritsidwa ntchito, ndipo madzi osungira madzi a methyl cellulose ethel ethel amachepetsa ndi kuchuluka kwa kutentha. Komabe, pogwiritsa ntchito matope owuma, nthawi zambiri matope owuma nthawi zambiri amagwiritsidwa ntchito kutentha kwambiri (madigiri 40) m'malo ambiri, omwe nthawi zambiri amathandizira kuchiritsa simenti komanso Kuuma kwa matope a ufa. Kuchepa kwa kuchuluka kwa madzi kumadzetsa kumverera kowonekeratu kuti kugwirira ntchito komanso kusokonekera komwe kumakhudzidwa, ndipo ndizosavuta kuti muchepetse zinthu za kutentha pansi pa izi. Pankhaniyi, methyl hydrothyl cellulose embixose zowonjezera zomwe zikuchitika pamaso paukadaulo. Ngakhale kuchuluka kwa methyl hydrothyl cellulose kumachulukitsa (chiilimwe cha chilimwe), kugwirira ntchito komanso kusokonekera komanso kusokoneza zosowa zomwe mungagwiritse ntchito. Mwa chithandizo china chapadera pa MC, monga kuwonjezera kuchuluka kwa chikondwerero, etc.
Nthawi zambiri, hpmc ili ndi kutentha kwa gel, komwe kumatha kugawidwa m'mitundu 60, mitundu 65, ndi mitundu 75. Kwa mabizinesi omwe amagwiritsa ntchito mchenga wamtsinje kwa matope wamba osakanizika, ndibwino kugwiritsa ntchito 75-mtundu wa hpmc ndi kutentha kwambiri kwa gel. Mlingo wa HPMC sayenera kukhala wokwera kwambiri, apo ayi chidzakulitsa kuchuluka kwa matope, kumamatira papepala, ndipo nthawi yokhazikika idzakhala motalika kwambiri, komwe kumakhudza mgwirizano. Zogulitsa zamagetsi zimagwiritsa ntchito hpmc ndi ma viscosies osiyanasiyana, ndipo musagwiritse ntchito mafakitale akhama hpmc. Chifukwa chake, ngakhale hydroxypropyl zinthu zabwino zimakhala zabwino, zimakhala zoyamikiridwa akamagwiritsidwa ntchito bwino. Kusankha HPMC yoyenera ndiye udindo waukulu wa ogwira ntchito kuntchito.
Post Nthawi: Apr-12-2023