MukamasankhaHydroxypropyl methylcellulose (hpmc), Kuwunikira madzi ake kusunthira ndi chizindikiro chachikulu, makamaka pakugwiritsa ntchito m'magawo omanga, zodzoladzola, ndi zina zowonjezera, zotsatsa, kusasinthika ndi kukhazikika.
1. Mapangidwe a molecular ndi kulemera kwa molecular
Kulemera kwa zolemera za kudandaula ®hpmc ndi ma molecular kumakhudza mwachindunji magwiridwe ake osungira madzi. Nthawi zambiri, ma tekitala olemera a hpmc, malo abwino osungira. HPMC yokhala ndi kulemera kwakukulu kwa molecular ili ndi kapangidwe katatu, komwe kumatha kuyamwa madzi ambiri ndikupanga mawonekedwe okhazikika.
HPMC yotsika mtengo hpmc: ili ndi kutsika kosungunuka m'madzi, koma kumatha kusunga madzi, ndipo ndikoyenera kugwiritsa ntchito matope ambiri, monga matope opangira, etc.
Kulemera pang'ono kwa HPMC: Kusunga kwamadzi kosavomerezeka, koma madzi abwino, oyenera mapangidwe omwe amafunikira kutsimikiza kapena kuyanika.
2. Hydroxypropyl
Mitundu ya hydroxypyl imatanthawuza zomwe zili m'magulu a hydroxypyl mu hpmc mamolekyulu, omwe nthawi zambiri amafotokozedwa ngati kuchuluka kwamafuta. Zomwe zili ndi hydroxypropyl zimakhudza kusungunuka, mafakisoni ndi madzi osungira a HPMC.
High Hydropyl VopMC: Ikhoza kukhala yosungunuka m'madzi ndikuwonjezera hydration, motero ili ndi chitetezo chamadzi ndipo chimakhala choyenera kugwiritsa ntchito zachilengedwe.
Ma hydroxypyl omwe ali ndi HPMC: kusauka kosauka, koma atha kukhala ndi mamasukidwe apamwamba, omwe ali oyenera kwambiri pakugwiritsa ntchito ena monga zokutira zolimbitsa thupi.
3. Kusungunuka
Kusungunuka kwa HPMC ndi chimodzi mwazinthu zofunika poweruza madzi. Kusungunuka kwabwino kumathandizira kuyamwa m'madzi, potero kumathandizira madzi abwino.
Kutentha kwamadzi okwanira: HPMCS ambiri amasungunuka mosavuta m'madzi ofunda. HPMC yosungunuka imatha kupanga yankho la colloidal, lomwe limathandizira kuti likhale lonyowa mu simenti slorry ndipo limalepheretsa madzi kuti asakayama mwachangu.
Madzi ozizira kususuka: Zogulitsa zomwe zimafunikira kugwiritsidwa ntchito pa malo otsika matenthedwe, hpmc okhala ndi madzi ozizira ozizira ndi abwino kwambiri. Mtundu wamtunduwu umatha kusungunuka mwachangu kutentha kwa firiji kapena kutentha kochepa kuti mutsimikizire madzi panthawi yomanga.
4. Tinthu tating'onoting'ono
Tizilombo tating'onoting'ono ta hpmc zimakhudza mwachindunji kuchuluka kwake ndi magwiridwe antchito a madzi. HPMC yokhala ndi tinthu tating'onoting'ono timasungunuka mwachangu ndipo zimatha kumasula madzi m'dongosolo, motero kulimbikitsa madzi osasunthika. Ngakhale HPMC yokhala ndi tinthu tating'onoting'ono timasungunuka pang'onopang'ono, imatha kupanga mankhwala okhazikika mu dongosolo, kotero kusunga madzi kumakhala kolimba.
Chovala chabwino hpmc: choyenera kugwiritsa ntchito ntchito zomwe zimafunikira madzi mwachangu, ndipo ndizoyenera zinthu monga matope osakaniza ndi zomata zomwe zimafuna zoyambirira zoyambirira.
Coarwarle HPMC: Woyenera kwambiri m'magawo omwe amafunikira kusungidwa kwakanthawi kotalikirapo, kapena ngati simenti yokhalitsa, magombe popanga zida, etc.
5. Zolemba
Chinyezi chokhala ndi HPMC chidzakhudzanso magwiridwe ake osungira madzi. Chinyezi chochuluka chimatha kuyambitsa hpmc kuti chizisintha momwe limagwiritsira ntchito nthawi yosungirako ndikugwiritsa ntchito. Chifukwa chake, hup hpmc nthawi zambiri imakhala ndi moyo wautali komanso kuchita zinthu zina zokhazikika. Mukamasankha, samalani ndi chinyezi chake kuti mupewe chinyezi kwambiri chomwe chikukhudza ntchito.
6. Kulimbana ndi kutentha
Kusunga kwamadzi kwa HPMC kumagwirizananso kwambiri ndi kutentha kwake. Ntchito zina zitha kufunikira hpmc kukhalabe ndi ma hydration okhazikika pamatenthedwe apamwamba. Mwachitsanzo, zomangamanga zomangamanga zitha kugwiritsidwa ntchito kutentha kwambiri pomanga. Kusankha HPMC ndi kutentha kwamphamvu kukana kuwonetsetsa kuti nthawi yabwino yamadzi nthawi yomanga ndi yoletsa zinthuzo kuti zisafoke mwachangu kwambiri.
7. Kukhazikika
Kukhazikika kwa HPMC kumakhudzanso kusungidwa kwa madzi pansi pa ph ndi kutentha. HPMC yokhazikika imatha kusungidwa ndi madzi kwanthawi yayitali m'malo osiyanasiyana, makamaka a alkaline wamphamvu kapena acidic malo ngati simenti kapena gypsum. Ndikofunikira kusankha hpmc ndi kulimba kwamphamvu. Ngati kukhazikika kwamankhwala kwa HPMC kuli wosauka, kusunga madzi kumachepetsa pakapita nthawi, kumakhudzanso kuchita komaliza.
8. Zowonjezera ndi chithandizo chapansi
Zogulitsa zina za HPMC zimawonjezera chithandizo chapadera kapena zowonjezera zomwe zimachitika panthawi yopanga kuti ziziwongolera madzi. Mwachitsanzo, powonjezera ma poizors kapena ma colloids, kuchuluka kwa madzi a HPMC kungasinthe. Kuphatikiza apo, zinthu zina zimathandizira kuti madzi awo azitha kuwonjezera othandizira anti-anti-anting, kupanga hpmc koyenera pakugwiritsa ntchito.
9. Njira Zoyeserera
Mukamasankha HPMC, njira zina zoyeserera zitha kugwiritsidwa ntchito kuwunika madzi. Mwachitsanzo:
Kuyesa kwa Madzi: Dziwani kuchuluka kwa madzi omwe hpmc amatha kuyamwa nthawi inayake.
Madzi ogwiritsira ntchito mayeso a mphamvu: yesani luso la nkhawa®hpmc kuti musunge madzi osakanikirana ndi mikhalidwe yomanga.
Khazikini la Vispen: Mafayilo amakhudzanso hydration yake. Kusungidwa kwake kwamadzi kumaweruzidwa ndi mafayilo. HPMC yokhala ndi mafayilo apamwamba nthawi zambiri imakhala ndi madzi abwino.
Mukamasankha kumanjaHpmc, ndikofunikira kuti muganize zambiri monga ma cerer, hydroxypropyl, kufalikira kwa tinthu, kusankha mtundu woyenera wa mapulogalamu enieni, sankhani mtundu wa HPMC kuti muwonetsetse kuti Magwiridwe amadzi osungidwa amakumana ndi zofunikira. Makamaka pomanga ndi mafakitale opangira mankhwala, kusunga kwamadzi kwa HPMC sikukhudza ntchito yomanga, koma ingakhudzenso mtundu womaliza wa malondawo, motero ayenera kusankhidwa mosamala kwambiri.
Post Nthawi: Feb-21-2025