Bayanin Gwaji namethypyl methylcelosealama ce mai mahimmanci. Dalilin bashi wakiltar tsarkakewar. Hepmuction na sel na HPMC ya dogara da tsarin samarwa. Muhimba daban-daban yakamata su zabi selulose hpmc tare da vicisiities daban-daban, ba mafi girma dankan dankanin selulose ba, mafi kyau! Abin da ke daidai shine √
Kulawa na Gano
1. Haske Hydroxypyl methylcellulopyl methylcellulose ba zai iya samar da sosai sel kawai ta hanyar iska da maye gurbin nitrogen. Gabaɗaya, samar da sel mai ƙarfi a China ba za a iya sarrafa su ba. Koyaya, idan an sanya kayan aikin iskar oxygen a cikin Kettle, samar da samar da danko.
Amfani da wakilan masu shigowa
2. Bugu da kari, la'akari da wanda zai maye gurbin saurin sauyawa na nitrogen, kuma a lokaci guda, yana da sauƙin samar da samfuran danko mai zurfi wanda yake da yanayin yanayin. Tabbas, matakin polymerization na auduga mai farfado shima mai mahimmanci. Idan hakan bai yi aiki ba, yi shi ta hanyar ƙungiyar hydrophobic. Akwai wakilai masu shigowa cikin gida a wannan batun. Wane irin wakili aka zaɓi yana da babban tasiri akan aikin samfurin ƙarshe.
Abun Hydroxypyl
3. Jigilar Oxyor na ragowar a cikin reactor yana haifar da lalata ƙwayar cellulose da rage girman nauyin kwayoyin, amma ragowar oxygen yana da iyaka. Ba shi da wahala a sa babban danko muddin muddin an sake haɗawa da kwayoyin. Koyaya, yawan adadin jikewa ma yana da alaƙa da abin da ke cikin hydroxypropyl. Wasu masana'antu suna son rage farashin da farashin, kuma ba su son ƙara yawan hydroxypropyl, saboda haka ingancin ba zai iya isa matakin samfuran ƙasashe irin wannan ba.
Sauran dalilai
4. Tsarin riƙewar kayan yana da kyakkyawar dangantaka da hydroxypropyl, amma ga dukkan tsarin riƙewar ruwa, yana da rabo daga methyl chloride da propylelene opyl chloride, da kuma maida hankali da alkali . Da kuma rabo daga ruwa zuwa auduga na gyara aikin samfurin.
Lokaci: Oct-19-2022