Zinthu zomwe zikukhudza kusungidwa kwamadzi kwa hydroxypropyl methylcellulose

Hydroxypylferose (hpmc) ndi polymer compeugh yogwiritsidwa ntchito pomanga, mankhwala, chakudya ndi minda ina. Chifukwa cha kusungidwa ndi madzi abwino, imathandizira pa matope a simenti, putty ufa, zokutira ndi zokukonzekera mankhwala. Kusunga kwamadzi kwa HPMC kumakhudzidwa ndi zinthu zingapo, kuphatikizapo kapangidwe kake, kuchuluka kwa kulowetsa, mafayilo, kutentha kozungulira, madzi kuyamwa kwa gawo lapansi.

1. Mphamvu za ma molecular osakaniza ndi kuchuluka kwa zolowa m'malo
HPMC consists of a cellulose skeleton structure and methoxy (–OCH₃) and hydroxypropoxy (–OCH₂CHOHCH₃) substituents, and its degree of substitution plays a key role in water retention. Kukhalapo kwa olowa m'malo kumawonjezera hydrophilicity ya HPMC, ngakhalenso yokhudzanso kusungunuka kwake ndikupanga mawonekedwe ake. Nthawi zambiri, kuchuluka kwa hydroxypropyl kulower, mphamvu ya hydrophilicity ndi madzi osokoneza bongo a HPMC. Zomwe zimapangidwa ndi methoxy zimathandizira kusintha kusungunuka, ndikupangitsa kuti ikhale yosavuta kutseka m'madzi ndikuchepetsa kuchepa kwamadzi.

2. Mphamvu ya mafayilo
Makulidwe a HPMC ndi gawo lofunikira kuti muyeze mitundu yazachinyengo ya yankho lake, nthawi zambiri imafotokozedwa monga mafayilo a 2%. Njira yothetsera vutoli yopangidwa ndi iPCCC HPMC ndi yotenthedwa ndipo imatha kupanga filimu yokhazikika pazinthu zokhazikika pazinthuzo, akuchedwetsa kusinthaku ndi kulowa kwa madzi osasungidwa. Wotsitsa HPMC Njira yamphamvu imakhala ndi madzimadzi amphamvu ndipo ndizoyenera kugwiritsa ntchito madera omwe amafuna kumasulidwa madzi mwachangu. Chifukwa chake, m'minda monga matope opanga matope, matope okwera hpmc amathandiza kukonza madzi, pomwe otsika-akuwoneka bwino ku ma ppmc omwe amafunikira kuyanika mwachangu.

3. Zotsatira zowonjezera
Kusunga kwamadzi kwa HPMC kumawonjezeka ndi kuchuluka kwa kuchuluka kwa kuwonjezera, koma koposa. Kuchuluka kwa hpmc koyenera kumatha kupanga filimu yokhazikika ya matope mu matope kapena poimbira, kuchepetsa kuchepa kwa madzi, ndikusintha kutseguka. Komabe, kugwiritsa ntchito kwambiri kumatha kubweretsa mamasukidwe ochulukirapo ndikukhudze magwiridwe antchito, monga kuchepetsa madzima matope ndikukhalitsa nthawi yake. Chifukwa chake, mu ntchito zothandiza, kuchuluka kwa hpmc kuyenera kuganiziridwa mokwanira kuti tikwaniritse madzi abwino.

4. Zotsatira za kutentha kozungulira
Kutentha kumakhala ndi mphamvu yofunika kwambiri pa madzi a HPMC. Pansi pa kutentha kwambiri, madzi amatuluka mofulumira, ndipo madziwo mu matope kapena utoto umatayika mosavuta, zomwe zimapangitsa kuchepa kwa zomanga. HPMC ili ndi katundu wina wa gel. Ikapitilira kutentha kwake kwa gel, kumayendetsa madzi, kumakhudzanso madzi. Chifukwa chake, m'maiko otentha kapena owuma, ndikofunikira kusankha mitundu yoyenera ya HPMC ndikuwonjezera kuchuluka kwake kuwonjezera kutsimikizira kuti kusungidwa kwamadzi. Kuphatikiza apo, zinthu monga kuphimba ndi kuchiritsa kungathe kutetezedwa kuti muchepetse kuchepa kwa madzi.

5. Madzi ozama a madzi a gawo lapansi
Mitundu yosiyanasiyana imakhala ndi mayamwidwe osiyanasiyana amadzi, omwe angakhudzenso magwiridwe antchito a HPMC. Mitengo yokhala ndi madzi ammadzi ambiri, monga njerwa, mabodi a gypsum, etc. Pankhaniyi, kugwiritsa ntchito mafashoni apamwamba kwambiri, kusintha kwakukulu kwa HPMC kumatha kupanga filimu yolimba kwambiri pamtunda kuti muchepetse kuchepa kwa madzi. Kuphatikiza apo, kusintha koyenera ku njira, monga kuwonjezera ma mankhwala osungira madzi kapena kuchepetsa madzi am'madzi a gawo lapansi, amathanso kusintha magwiridwe antchito onse a madzi.

6. Mphamvu za njira yopanga
HPMC imakonda kugwira ntchito limodzi ndi zigawo zina mu matope, putty kapena zokutira, ndipo kusunga madzi kumakhudzidwa ndi mawonekedwe onse. Mwachitsanzo, gawo la simenti, laimu, gydreted gypsum ndi zina mwa matope a simenti mwachindunji zimakhudza kuchuluka kwa ma hydration zomwe zimachitika. Kugwiritsa ntchito ma Admintixtures monga othandizira mpweya, owaza, ndipo ulusiwo adzakhudzanso mkhalidwe wa HPMC, ponenanso za madzi osunga. Chifukwa chake, popanga mawonekedwe, ndikofunikira kuganizira momveka bwino kulumikizana kwa HPMC ndi zosakaniza zina kuti zithetse magwiridwe omaliza a madzi.

Kusunga kwamadzi kwa HPMC kumakhudzidwa ndi zinthu zambiri, kuphatikizapo ma molecular, kuchuluka kwa zolowa m'malo mwake, kutentha kwamitundu yozungulira, ndi mapangidwe. M'mapulogalamu enaake, ndikofunikira kusankha mitundu yoyenera ya HPMC ndikuwonjezera molingana ndi madera osiyanasiyana ndi zinthu zakuthupi kuti mukwaniritse madzi abwino. Kuphatikiza apo, kusintha mawonekedwe ndikukonzekera kuphatikiza zomangamanga kungathandizenso kukonza magwiridwe antchito ndikuwongolera mtunduwo ndikugwiritsa ntchito mphamvu zomaliza.