Nhamba ye viscosity yehydroxypropyl methylcellulose inhamba yakakosha zvikuru. Viscosity haimiriri kuchena. Viscosity ye cellulose HPMC inoenderana nemaitiro ekugadzira. Nzvimbo dzakasiyana dzekushandisa dzinofanira kusarudza cellulose HPMC ine viscosities dzakasiyana, kwete viscosity ye cellulose HPMC yakakwira, zviri nani! Chakarurama ndicho chakanaka!
1. Kudzora kusviba
Hydroxypropyl methylcellulose ine viscosity yakakura haigone kugadzira cellulose yakawanda nekungoshandisa vacuum cleaner uye kutsiva nitrogen mukugadzirwa. Kazhinji, kugadzirwa kwecellulose ine viscosity yakakura muChina hakugone kudzorwa. Zvisinei, kana trace oxygen meter ikaiswa mukettle, kugadzirwa kwe viscosity yayo kunogona kudzorwa nemaoko.
2. Kushandisa mumiriri wesangano
Pamusoro pezvo, tichifunga nezvekumhanya kwekutsiva nitrogen, zviri nyore kugadzira zvigadzirwa zvine viscosity yakanyanya zvisinei nekuti system yacho haina mhepo yakawanda sei. Ehe, mwero wepolymerization yedonje rakanatswa wakakoshawo. Kana izvozvo zvikasashanda, saka ita ne hydrophobic association. Kune association agents munzvimbo iyi muChina. Rudzi rwe association agent yekusarudza rune simba guru pakushanda kwechigadzirwa chekupedzisira.
3. Hunhu hweHydroxypropyl
Okisijeni yasara iri mu reactor inokonzera kuparara kwe cellulose uye kudzikira kwehuremu hwemamorekuru, asi okisijeni yasara ine muganho, chero bedzi mamorekuru akaputsika akabatanazve, hazvisi zvakaoma kugadzira viscosity yakanyanya. Zvisinei, mwero wekuzara kwemafuta une chekuita nehuwandu hwehydroxypropyl. Mamwe mafekitori anongoda kuderedza mutengo nemutengo, asi haadi kuwedzera huwandu hwehydroxypropyl, saka mhando haigone kusvika padanho rezvigadzirwa zvakafanana zvekunze.
4. Zvimwe zvinhu
Mwero wekuchengetwa kwemvura kwechigadzirwa une hukama hwakanaka nehydroxypropyl, asi pakuita kwese kwekuita, inotarisawo mwero wekuchengetwa kwemvura, mhedzisiro yealkali, chiyero chemethyl chloride nepropylene oxide, huwandu hwealkali uye kuchengetwa kwemvura. Chiyero chedonje rakanatswa chinotarisa mashandiro echigadzirwa.
Nguva yekutumira: Kubvumbi-04-2023