Cellulose amagwiritsidwa ntchito kwambiri mu petrochemical, mankhwala, kupanga mapepala, zodzoladzola, zomangira, ndi zina zotero. Ndizowonjezera kwambiri, ndipo ntchito zosiyanasiyana zimakhala ndi zofunikira zosiyana pamagulu a cellulose.
Nkhaniyi ikufotokoza za kagwiritsidwe ntchito ndi njira yozindikiritsira mtundu wa HPMC (hydroxypropyl methylcellulose ether), mitundu ya cellulose yomwe imagwiritsidwa ntchito mu ufa wamba wa putty.
HPMC imagwiritsa ntchito thonje woyengedwa ngati zopangira zazikulu. Ili ndi ntchito yabwino, mtengo wapamwamba komanso kukana kwa alkali. Ndi yoyenera kwa putty wamba wosamva madzi ndi matope a polima opangidwa ndi simenti, laimu kashiamu ndi zida zina zamphamvu zamchere. Mitundu yama viscosity ndi 40,000-200000S.
Zotsatirazi ndi njira zingapo zoyesera mtundu wa hydroxypropyl methylcellulose mwachidule ndi Xiaobian kwa inu. Bwerani mudzaphunzire ndi Xiaobian~
1. Kuyera:
Zachidziwikire, chinthu chofunikira pakuzindikira mtundu wa hydroxypropyl methylcellulose sichingakhale choyera chabe. Ena opanga adzawonjezera whitening wothandizira pakupanga ndondomeko, mu nkhani iyi, khalidwe sungaweruzidwe, koma whiteness apamwamba hydroxypropyl methylcellulose ndi zabwino kwenikweni.
2. Ubwino:
Hydroxypropyl methylcellulose nthawi zambiri imakhala ndi ma mesh 80, mauna 100 ndi mauna 120. Ubwino wa tinthu tating'onoting'ono tating'onoting'ono ndi wabwino kwambiri, komanso kusungunuka ndi kusunga madzi ndikwabwino. Ichi ndi hydroxypropyl methylcellulose yapamwamba kwambiri.
3. Kuwala:
Ikani hydroxypropyl methylcellulose m'madzi ndikusungunula m'madzi kwa kanthawi kuti muwone kukhuthala ndi kuwonekera. gel osakaniza atapangidwa, yang'anani kuwala kwake, kuwala kwabwinoko kumapangitsa kuti zinthu zosasungunuka ndi chiyero zikhale zapamwamba.
4. Kukokera kwapadera:
Kuchuluka kwa mphamvu yokoka, kumakhala bwino, chifukwa kuchulukitsidwa kwa mphamvu yokoka kumapangitsa kuti hydroxypropyl methyl ikhale yochuluka momwemo, ndi bwino kusunga madzi.
Nthawi yotumiza: Nov-17-2022