HPMC (Hydroxypropyl Methylcellulose)ndi pulojekiti yomwe imagwiritsidwa ntchito kwambiri polima yomwe imagwiritsidwa ntchito kwambiri popanga zomatira. Zimagwira ntchito yofunika kwambiri pazinthu zambiri zomatira.
1. Thickening wothandizira ntchito
HPMC ndi thickener imayenera kuti kwambiri kusintha mamasukidwe akayendedwe ndi kukhazikika kwa zomatira. Mapangidwe ake a maselo ali ndi unyolo wamphamvu wa hydrophilicity ndi polysaccharide, ndipo amatha kupanga njira yofanana ya colloidal m'madzi kapena organic solvents. Makhalidwewa amatha kuteteza zomatira kuti zisawonongeke kapena kukhazikika panthawi yosungiramo ndikugwiritsa ntchito, motero zimatsimikizira kuti zomatirazo zimakhala zofanana.
2. Kuchita bwino kumamatira
HPMC ili ndi zomatira zabwino kwambiri ndipo imatha kusintha kwambiri zomatira ku gawo lapansi. Pambuyo wokutidwa pamwamba pa gawo lapansi, mamolekyu a HPMC amatha kulowa mu pores zabwino pamtunda kuti apititse patsogolo mphamvu zomangira ndipo ndi oyenera pazinthu zosiyanasiyana monga mapepala, CHIKWANGWANI, matabwa ndi zoumba.
3. Mafilimu opanga mafilimu
Mtengo wa HPMCali ndi zinthu zabwino kwambiri zopangira mafilimu ndipo amatha kupanga filimu yofananira komanso yopitilira pambuyo pakupaka. Kanemayu ali ndi kulimba kwabwino komanso kukhazikika ndipo atha kupereka gawo lowonjezera lachitetezo cha zomatira, kuwongolera kulimba komanso kusalowa madzi kwa chomangiracho. Kuonjezera apo, filimuyi imachepetsa zotsatira za malo akunja, monga chinyezi kapena kusintha kwa kutentha, pakugwira ntchito kwa zomatira.
4. Kusunga madzi
Mtengo wa HPMCili ndi mphamvu yabwino yosungira madzi ndipo imatha kutseka chinyezi mu zomatira kuti madzi asatayike kwambiri. Mbali imeneyi ndi yofunika kwambiri pa zomatira zamadzi ndi zipangizo za simenti, zomwe zingathe kuwonjezera nthawi yotsegulira, kuthandizira kumanga, komanso kupewa kuyanika kuchepa kapena kuwonongeka kwa ntchito zomangira zomwe zimachitika chifukwa cha kutuluka kwamadzi mofulumira.
5. Stabilizer zotsatira
HPMC akhoza kwambiri kusintha bata la zomatira dongosolo, kuteteza yokhazikika kapena agglomeration wa particles olimba, ndi kukhalabe mankhwala ofanana. Magulu ogwira ntchito mu unyolo wake wa maselo amathanso kugwira ntchito mogwirizana ndi zigawo zina kuti apititse patsogolo kukhazikika ndi ntchito ya chilinganizo.
6. Kukonda chilengedwe
HPMC ndi chinthu chopezedwa ndi kusinthidwa kwa mankhwala a cellulose achilengedwe. Sichiwopsezo, chopanda vuto komanso chosawonongeka. Kugwiritsa ntchito kwake muzomatira kumagwirizana ndi zofunikira zamakono zoteteza chilengedwe ndipo zimakhala ndi ubwino waukulu makamaka m'mafakitale omanga, kulongedza ndi zakudya.
7. Sinthani rheology
Makhalidwe apadera a rheological a HPMC mu njira (monga kumeta ubweya wa ubweya) amathandiza zomatira kukhala ndi katundu womanga wabwino panthawi yogwiritsira ntchito. Kukhuthala kwake kumachepa pansi pamikhalidwe yometa ubweya wambiri, zomwe zimapangitsa kuti zikhale zosavuta kupenta, kupopera kapena kukwapula, pomwe mamasukidwe ake amabwereranso pansi pamikhalidwe yotsika, kuonetsetsa kuti zinthuzo zimamatira bwino pagawo.
Malo ofunsira
Monga gawo lofunikira la zomatira, HPMC imagwiritsidwa ntchito kwambiri m'magawo otsatirawa:
Makampani omanga: monga zomatira matailosi, ufa wa putty, matope osakanizika owuma, omwe amagwiritsidwa ntchito kupititsa patsogolo ntchito yomanga ndi mphamvu yomangirira.
Zomatira zamatabwa: Sinthani kulumikizana pakati pa matabwa ndikuletsa kusweka.
Kupanga mapepala ndi kusindikiza: amagwiritsidwa ntchito popaka mapepala kuti apititse patsogolo kusalala ndi kumamatira.
Zovala ndi zikopa: zimagwiritsidwa ntchito popanga ulusi komanso kulumikiza zikopa.
Mtengo wa HPMCimagwira ntchito zingapo zomatira monga kukhuthala, kusunga madzi, kukhazikika, kukulitsa zomatira komanso kupanga filimu. Ilinso ndi ubwino wa chitetezo cha chilengedwe ndi rheology yosinthika. Zinthu izi zimapangitsa kuti ikhale yofunikira komanso yofunika kwambiri pakupanga zomatira, zomwe zimapereka chithandizo chofunikira pakuwongolera magwiridwe antchito ndi kukwaniritsa zosowa zosiyanasiyana.
Nthawi yotumiza: Nov-23-2024