Hydroxypropylmethylcylosellose (HPMC) yakakosha inowedzera mudhaka, inopa basa rakakosha mukuvandudza mashandiro emota. Semukati isina-chepfu, isina-kusvibisa uye zvakatipoteredza zvinhu, HPMC yakadzoreredza zvetsika zvakadai sehundi eTher uye lignin ether indasitiri yekuvaka. Chinyorwa ichi chinokurukura nezvebasa rakakosha reHPMC mumotokari kubva pazvinhu zvitatu zvekuchengetwa kwemvura, kushanda uye kubatanidza.
HPMC inogona kubatsira zvinobudirira kuchengetwa kwemvura kwerufu. Kuchengetwa kwemvura kwemutya kunoreva kugona kwemutema kuchengetedza zvemvura yayo panguva yekuvaka. Kuchengetwa kwemvura kwemutya kunoenderana nekuita kwesimendi uye zvinowedzera zvinoshandiswa mudhaka. Kana maumbwe achirasikirwa nemvura yakawandisa, ichaita kuti durwe riome kunze, iyo ichaderedza kwazvo basa rayo uye kuderedza, uye nekukonzera matambudziko akadai seyakapedzwa chigadzirwa.
HPMC ine hydroxyropropyl uye methyl mapoka uye ine hydrophilic. Inogona kuumba denderedzwa yemufirimu pamusoro pechiso chemagetsi motsi kudzivirira kubhururuka kwemvura uye nekubudirira kuchengetwa kwemvura kwemvura. Panguva imwecheteyo, HPMC inogona zvakare kusanganisa nemamolekyudhi emvura kuburikidza neHydrogen zvisungo, zvichiita kuti zviome zvakanyanya kumamolekyudhi emvura kuti aparadzanise kubva kune motor Naizvozvo, HPMC ine kukosha kwakakura pakuvandudza kuchengetwa kwemvura kwemutya.
HPMC inogona zvakare kuvandudza basa rekushanda kwemota. Iko kushanda kwemutya kunoreva kusununguka pamwe neiri motsi inogona kunyengedzwa uye yakaumbwa pakuvaka. Zvirinani kushanda kweiyo durari, zviri nyore ndezvekuvaka varimi kudzora chimiro uye kusawirirana kwemotokari panguva yekuvaka. Iko kushanda kwakanaka kwerufu kunogona zvakare kuderedza huwandu hwemapepa emhepo muhomwe yakapedza, ichigadzira chimiro chakawanda uye chakasimba.
HPMC inogona kubatsira zvinobudirira basa rekushanda kwemotokari nekudzora viscosity yemutengesi. Uremu hweHPMC rakakwirira kwazvo, uye zviri nyore kuumba hydrogen zvisungo nemamolekyudhi emvura, zvichikonzera muvhisi wepamusoro. Nekudaro, HPMC inogona kuiswa mune zvidiki zvidiki pasi pechiitiko chekusheya kwesimba, kuderedza zvisizvo zvevhu. Naizvozvo, pavanoshanda navo pakuvaka vachibata mongwe, iyo HPMC zvikamu zvacho zvichaputswa, ichiita kuti dhaya rizere nemvura uye nyore kuvaka. Zvakare, mapoka e hpmc anogona zvakare kuumba iyo firimu yepasi pane pamusoro pe motsices, kuderedza kupfava pakati pe motsicles, uye nekuenderera mberi nekuita basa rekushanda.
HPMC inogona kuvandudza kudedera kwerufu. Kudonhedza kweguruva kunoreva kugona kwayo kusimbisa kumusoro kweiyo substrate. Kunamatira kwakanaka kunogona kuumba yakasimba uye yakavimbika kubatana pakati pechidimbu uye substrate, inoona kusimba kwechigadzirwa chakapera. Uye zvakare, yakanaka yekudyidzana inogona zvakare kuita iyo nzvimbo yeiyo yakapera chigadzirwa chinotsvedza uye zvakanyanya kunaka.
HPMC inogona kuvandudza kuderedza kwemotokari munzira dzinoverengeka. Chekutanga pane zvese, HPMC inogona kuumba iyo firimu pamusoro peiyo substrate yekuvakwa kwekuvakwa, iyo inogona kunyatso kuderedza kushushikana kwekusanzwisisika kweiyo substrate uye inoita kuti zvive nyore kune motsi kuti iitane neiyo subhere. Kechipiri, HPMC zvidimbu zvinogona zvakare kuumba setiweki chimiro pamusoro peiyo substrate, wedzera nzvimbo yekuonana pakati pehudyu uye substrate, uye nekuwedzera kunatsiridza kuderedza. Zvakare, mapoka emhombiyoni ari muHPMC anogona kunge achisanganiswa nemamolekyudhi emvura, ayo anogona kubudirira kuwedzera iyo yemvura-simende yemvura yemutumbi uye nekuenderera mberi nekugadzirisa simba rekudyara.
Kushandiswa kweHPMC muMutya kune zvakawanda zvakanakira sekuchengetwa kwemvura, kushanda, uye kwakavandudzwa kuderedza. Izvi zvakanaka hazvingabatsire vashandi vekuvaka chete, asi zvakare vane hunhu hwakanaka pane hwakawanda hunhu hwechigadzirwa chakapera. Nekuvandudzwa kwesainzi uye tekinoroji, inotendwa kuti HPMC inotamba chiitiko chinowedzera chakakosha muindasitiri yekuvaka uye nekupa zvimwe zvinowedzera uye zvakachengeteka zvigadzirwa zveindasitiri yekuvaka.
Kutumira Nguva: Sep-01-2023