Hydroxypropyl methylcellulose (hpmc)Amagwiritsidwa ntchito kawirikawiri pa cellulose, yomwe imagwiritsidwa ntchito kwambiri m'zigawo zomangamanga, zimagwiritsidwa ntchito kwambiri pomanga, chakudya, chakudya ndi mankhwala a mankhwala tsiku lililonse. Popanga zida zomangira, makamaka m'masamba a tile, ma tall ogwirira, matope owuma, ndi zina zambiri, monga chowonjezera chokha, komanso chofunikira kwambiri pankhani yolimbitsa mphamvu.
1. Zoyambira za HPMC
Dyera®hpm ndi cellulose yochokera ku kusungunuka ndi madzi abwino, kutsatira ndi kukula. Amapanga colloid m'madzi kudzera m'magulu a hydroxypyl ndi methyl m'magulu ake, omwe amatha kusintha molunjika adtheon, rhelogy ndi madzi osungira. Popanga zomata, kuwonjezera kwa HPMC kumatha kukonza mphamvu yolumikizana, kumathandizira nthawi yotseguka, ndikuwongolera kufalikira ndi kukana madzi. Chifukwa chake, kuchuluka kwa hpmc kumakhudzana mwachindunji ndi magwiridwe antchito awa, omwe amakhudzanso kupikisana.
2. Zotsatira za Mlingo wa HPMC pa Mphamvu Yogwirizira
Mphamvu yogwiritsira ntchito ndi chizindikiro chachikulu poyesa zotsatira za zomata zankhondo. Kuchuluka kwa HPMC yowonjezeredwa kwa zomatira zitha kukhudza kulimba mtima. Kumbali ina, kuchuluka kwa hpmc yoyenera kumawonjezera kugwirizanitsa ndi kulimba kwa zinthu za simenti. Izi zili choncho chifukwa HPMC imathandizira kusungidwa kwamadzi kwa matope, kuloleza simenti kuti ichotse bwino ndi gawo lapansi panthawi yolimba, potero kukonza mgwirizano womaliza. Komabe, kuchuluka kwa HPMC ndi kochepa kwambiri, kusungidwa kwake sikokwanira, komwe kungapangitse simenti kuti athetse madzi asanakwane, kumakhudza kulimba mtima ndikupangitsa kulimba mtima kosatha; Pomwe ndalamazo zikakula kwambiri, zitha kuyambitsa zomatira kukhala zowoneka bwino kwambiri, zomwe zikukhudza ntchito yomangayo komanso ngakhale kutsika mphamvu.
Kafukufuku wawonetsa kuti kuchuluka kwa HPMC nthawi zambiri kumakhala pakati pa 0,5% ndi 2%, komwe kumatha kusintha mphamvu yolumikizana mkati mwa mitundu ndi kugwirira ntchito ena. Komabe, kuchuluka kochepa kumafunikira kusinthidwa malinga ndi mtundu wa gawo lapansi ndi malo ogwiritsira ntchito.
3. Mphamvu ya Mlingo wa HPMC pakupanga
Kuchita zomanga ndi chimodzi mwazomwe zimapangitsa zomata zowunikira, makamaka kuphatikizapo madzi, osavuta pomanga ndikusintha nthawi yogwira ntchito. Kuchuluka kwa hpmc kumakhala ndi mphamvu kwambiri pazinthu izi. Kuchuluka kwa HPMC kumawonjezereka, mawike omatira kumawonjezeranso, kuwonetsa zomatira ndi nthawi yayitali. Ngakhale nthawi yayitali nthawi zina imatha kusintha kusinthasintha, kungapangitsenso malo omanga kuti abwerere ndikukhudzanso mgwirizano.
Kwa mitundu yosiyanasiyana ya magawo, monga matailosi, miyala, makoma, ndi zina, kuchuluka kwa nkhawa®hptc. Mwachitsanzo, ngati nthawi yayitali yogwirira ntchito ndikusintha, ndikuwonjezera kuchuluka kwa hpmc moyenera kumatha kukulitsa nthawi yotseguka ndikupewa kuwuma mwachangu, chifukwa chogwirizanitsa. Komabe, ngati nthawi yotseguka ndi yayitali kwambiri, ingayambitse mawonekedwe osafunikira panthawi yomanga ndikukhudza kulondola zomanga.
4. Mphamvu ya Mlingo wa HPMC pamadzi kukana ndi kuchuluka kwa nyengo
HPMC siingathe kungosintha nyonga ndi ntchito zomanga, komanso kusintha madzi kukana ndi nyengo yomatira. HPMC imathandizira kusungidwa kwamadzi kwa simenti, kuti zomata za mmenga sizimataya madzi mwachangu, motero zimalimbikitsa madzi ndikukana madzi. Mlingo wa HPMC ndi koyenera, kuthetsa madzi ndi moyo wa zinthu zakuthupi kungakhale bwino kwambiri, makamaka pamakoma otetezedwa, kumene madzi kukana zotsatsa ndi ofunikira.
Komabe, HPMC yochulukirapo imatha kubweretsa kukula kwambiri kwa zomatira, zimakhudza kukhazikika kwa zinthu zomwe zidakhazikitsidwa ndi simenti, ndikuchepetsa madzi ake. Chifukwa chake, kutsatsa mlingo wa HPMC kuti muchepetse hydration hydration ndi kukana kwa madzi simenti ndiye njira yowonetsetsa kuti muli ogwirizana.
5. Zotsatira za Mlingo wa HPMC pazinthu zina zakuthupi
Kuphatikiza pa kugwirizanitsa mphamvu, zomangamanga, kukana madzi, ndi zina zotere, mlingo wa HPMC idzakhudzanso zinthu zina zamitundu ina. Mwachitsanzo, ndikuchulukitsa kwa mlingo wa HPMC, kukhazikika kwa zomatira kumatha kusintha chifukwa hpmc imatha kulepheretsa ma stoctages ndi stratication mu zomatira ndikusunga zinthu zopanda tanthauzo. Kuphatikiza apo, mlingo waHpmcImagwirizananso kwambiri ndi zinthu monga mtundu, zotsutsana ndi zodetsa, komanso nthawi yokongoletsa. Mlingo wosiyanasiyana wa HPMC ungakwaniritse ntchito yabwino kwambiri yopanga zomangamanga zosiyanasiyana.
Monga chowonjezera cholumikizira zomata, wodwala. Mlingo wake umafunikira kuthandizidwa malinga ndi zofunika mwatsatanetsatane, gawo lapansi ndi zochitika zachilengedwe. Kuchuluka kwa hpmc yoyenera kumatha kusintha momwe mungagwiritsire ntchito mphamvu, zolimbitsa thupi, kukana madzi komanso kukana nyengo, ndikukhalabe bata. Komabe, mopitirira muyeso kapena zinthu zosakwanira hpmc zimatha kuyambitsa zomatira zosakhazikika ndikukhudzanso mgwirizano. Chifukwa chake, muzothandiza, ndikofunikira kudziwa kuchuluka koyenera kwa HPMC kudzera pakuyesa ndi kusintha kuti akwaniritse mgwirizano wabwino.
Post Nthawi: Dis-26-2024