Wothandizira Kusunga Madzi Cellulose Ether Hydroxypropyl Methyl Cellulose (HPMC)
Mafotokozedwe Akatundu
Hydroxypropyl Methyl celluloseEther LK50M ndi chowonjezera cha zinthu zosakaniza zokonzeka komanso zouma. Ndi chogwira ntchito bwino kwambirikusunga madziwothandizira,chokhuthala, chokhazikika, chomatira, chopangira filimu muzipangizo zomangira.
Kufotokozera Zaukadaulo
| Dzina | Hydroxypropyl Methyl Cellulose LK50M |
| CAS NO. | 9004-65-3 |
| KODI YA HS | 3912390000 |
| Maonekedwe | Ufa woyera |
| Kuchuluka kwa zinthu (g/cm2)3） | 19.0--38(0.5-0.7) (lb/ft 3) (g/cm 3) |
| Kuchuluka kwa Methyl | 19.0--24.0(%) |
| Kuchuluka kwa hydroxypropyl | 4.0--12.0(%) |
| Kutentha kwa gelling | 70--90(℃) |
| Chinyezi | ≤5.0(%) |
| Mtengo wa PH | 5.0--9.0 |
| Zotsalira (Phulusa) | ≤5.0(%) |
| Kukhuthala (2% Yankho) | 50,000(mPa.s, Brookfield 20rpm 20℃, -10%,+20%) |
| Phukusi | 25(kg/thumba) |
Mapulogalamu
➢ Mtondo wopangira chotenthetsera
➢ Putty yamkati ndi yakunja ya pakhoma
➢ Pulasitiki ya Gypsum
➢ Chomatira cha matailosi a Ceramic
➢ Simenti yofanana
Masewero Aakulu
➢ Nthawi yayitali yotsegulira
➢ Kukana kutsetsereka kwambiri
➢ Kusunga madzi ambiri
➢ Mphamvu yokwanira yolumikizirana
➢ Kupititsa patsogolo kugwira ntchito
☑ Kusunga ndi kutumiza
Iyenera kusungidwa ndikutumizidwa pamalo ouma komanso oyera ngati phukusi lake loyambirira komanso kutali ndi kutentha. Pambuyo poti phukusi latsegulidwa kuti lipangidwe, muyenera kutsekanso mwamphamvu kuti chinyezi chisalowe.
Phukusi: 25kg/thumba, thumba la pulasitiki lopangidwa ndi mapepala ambiri lokhala ndi valavu yotsegulira pansi, ndi thumba la filimu ya polyethylene yamkati.
☑Nthawi yosungira zinthu
Chitsimikizo ndi zaka ziwiri. Gwiritsani ntchito mwamsanga momwe mungathere kutentha kwambiri komanso chinyezi, kuti musawonjezere mwayi woti muphike.
☑Chitetezo cha zinthu
Hydroxypropyl methyl cellulose HPMC LK50M si ya zinthu zoopsa. Zambiri zokhudzana ndi chitetezo zaperekedwa mu Material Safety Data Sheet.
Mafunso Ofunsidwa Kawirikawiri
Hydroxypropyl methylcellulose (HPMC) ndi ma ether a cellulose omwe ali ndi magulu a hydroxyl pa unyolo wa cellulose m'malo mwa gulu la methoxy kapena hydroxypropyl.It imapangidwa ndi etherification yapadera ya cellulose yoyera kwambiri ya thonje pansi pa mikhalidwe ya alkaline. M'zaka zaposachedwa, HPMC, monga kusakaniza kogwira ntchito, imagwira ntchito kwambirisposunga madzi ndi kukhuthala mumakampani omanga ndipo amagwiritsidwa ntchito kwambiri muzida zosakaniza ndi drymix, monga zomatira za matailosi, ma grout, plastering, wall putty, self leveling, insulation mortar ndi zina zotero.
Kawirikawiri, pa ufa wa putty, kukhuthala kwaHPMCndi okwanira pafupifupi 70,000 mpaka 80,000. Cholinga chachikulu ndi pa momwe imasungira madzi, pomwe kukhuthala kwake kuli kochepa. Pa matope, zofunikira zaHPMCndi okwera, ndipo kukhuthala kuyenera kukhala pafupifupi 150,000, zomwe zingatsimikizire kuti imagwira ntchito bwino mu simenti. Zachidziwikire, mu ufa wa putty, bola ngati HPMC imagwira ntchito bwino posunga madzi, ngakhale kukhuthala kuli kochepa (70,000 mpaka 80,000), ndikovomerezeka. Komabe, mu simenti, ndibwino kusankha HPMC yokhala ndi kukhuthala kwakukulu (koposa 100,000), chifukwa mphamvu yake yosunga madzi ndi yofunika kwambiri pankhaniyi.
Vuto la kuchotsa ufa wa putty limadalira kwambiri mtundu wa calcium hydroxide ndipo silikugwirizana kwenikweni ndi HPMC. Ngati kuchuluka kwa calcium mu calcium hydroxide kuli kochepa kapena chiŵerengero cha CaO ndi Ca(OH)2 sichili choyenera, chingayambitse kuti ufa wa putty ugwe. Ponena za mphamvu ya HPMC, imaonekera kwambiri mu mphamvu yake yosunga madzi. Ngati mphamvu ya HPMC yosunga madzi ili yoipa, ingakhalenso ndi mphamvu inayake pa kuchotsedwa kwa ufa wa putty.
Zofunikira pakugwiritsa ntchito ufa wa putty ndizochepa. Kukhuthala kwa 100,000 ndikokwanira. Chofunika kwambiri ndikukhala ndi mphamvu zosungira madzi. Ponena za matope, zofunikira zake ndi zapamwamba ndipo kukhuthala kwakukulu kumafunika, ndipo mankhwala 150,000 amakhala ndi zotsatira zabwino.
