Kodi hydroxypropyl ikhoza methylcelulose yogwiritsidwa ntchito ngati gululo lomangira?

Choyamba, gulu la gululo lomangira liyenera kuganizira za ziweto. Chifukwa chachikulu chopangira gululu zomangira zomanga ndizosagwirizana pakati pa acrylic emulsion ndi hydroxypropyl a methylcellulose (hpmc). Kachiwiri, chifukwa cha nthawi yosakanikirana; Palinso kuchuluka kwa kukula kwa gululo lomangira. Pomanga gulu lomangira, muyenera kugwiritsa ntchito hydroxpyupyl cellulose (hpmc), chifukwa HPMC imangobalalika kokha m'madzi, sizingasungunuka. Patatha pafupifupi mphindi ziwiri, mamasukidwe amadzimadziwo amakula pang'onopang'ono, ndikupanga yankho lowoneka bwino la colloidal. Zogulitsa zosungunuka, zikawonekera m'madzi ozizira, zimatha kufalikira msanga m'madzi otentha ndikuzimiririka m'madzi otentha. Kutentha kukagwa mpaka kutentha kwinakwake, ma viwawo amawoneka pang'onopang'ono mpaka njira yowonekera yopanda ma viscous yonse imapangidwa. Mlingo wolimbikitsidwa wa hydroxpyl wamphamvu wa methylcellulose (hpmc) pomanga nyumbayo ndi 2-4kg.

Hydroxypypyl nothylcellulose (hpmc) amakhala ndi zinthu zokhazikika pakuchita zomata zathupi, ndipo zimathandizanso kuchotsa mphamvu ndi kutseka madzi, ndipo sizingakhudzidwe ndi kusintha kwa pH yamtengo wapatali. Makutu akhoza kugwiritsidwa ntchito pakati pa 100,000 s ndi 200,000 s. Kupanga, mafakiti apamwamba, abwino. Makulidwe akuwoneka molingana ndi nyonga yovuta. Maonekedwe a mafakiti, m'munsi mwamphamvu. Nthawi zambiri, mafayilo a 100,000 s ndi oyenera.

Sakanizani cmc ndi madzi ndikupanga matope amatope ogwiritsa ntchito pambuyo pake. Mukakhazikitsa cmc phala, onjezani madzi ozizira kupita ku thanki yokhotakhomera ndi makina osangalatsa. Makina osangalatsa atayamba, pang'onopang'ono komanso mokwanira kuwaza carboxymethyl cellulose m'tanki yokhotakhota, kuti apitirize kuyambitsa, kotero kuti madzi amasungunuka, ndipo madzi a Carboxymethl amasungunuka kwathunthu. Mukatha Kuthana ndi CMC, nthawi zambiri ndikofunikira kuti muthe kufalitsa ngakhale mosalekeza, kuti muchepetse ma cmc, ndikuchepetsa vuto la cmc.

Nthawi yosakanikirana siyofanana ndi nthawi ya masentimita kuti isungunuke kwathunthu. ndi matanthauzidwe awiri. Nthawi zambiri, nthawi yosakanikirana ndi yayifupi kwambiri kuposa nthawi ya masentimita kuti isungunuke kwathunthu, zimatengera tsatanetsatane. Maziko a Kuweruza nthawi yosakanikirana ndikuti masentimita omwazika m'madzi popanda kupukutira, kusakaniza kumatha kuyimitsidwa, kotero kuti masentimita ndi madzi amatha kulowa mkati mwazinthu zokhazikika. Pali zifukwa zingapo zodziwira nthawi yomwe iyenera kuwonongeka kwathunthu kwa cmc:

(1) CMC ndi madzi ndi ophatikizidwa kwathunthu, ndipo palibe zida zolekanitsa zamadzimadzi pakati pawo;
(2) phata losakanizika ndilofanana komanso labwinobwino, ndi malo osalala komanso osalala;
. Zimatenga maola 10 mpaka 20 kuyambira nthawi yomwe CMC imayikidwa mu thanki yokhota ndikusakanizika ndi madzi mpaka atasungunuka kwathunthu.