Hydroxypyl methyl selululuopyl, wanda kuma aka sani da Hydroxypromomoxoxy, shine fari zuwa-farin sel sel silility da granule wanda ke da sanyi mai sanyi da sel mai sanyi. Groupungiyar Hydroxypyl da Methyl grodungiyar eth eth eth eth eth eth eth eth ethhose da glucose na selulose hade, wani nau'in cellulose ne da ba ion hade da ether. Yana da semi-roba, m, polyler polymer wanda ake amfani dashi azaman mai tsami a cikin ophmalmantology, ko azaman complifient ko compient a cikin magunguna.
1. Tsarin samarwa
Kraft dabi'un tare da αcellulose abun ciki na kashi 97%, danko mai ban sha'awa / g da matsakaiciyar fiber tsawon 49% nah bayani a cikin 40 ℃ forments 30 seconds. Sannan an fitar da wani ɓangaren litattafan almara don cire wuce haddi 49% Noh bayani don samun alkalillulose na alkali. Matsakaicin nauyin (49% nah mafita) zuwa (m rabo daga cikin mataki naooh a cikin alkalia a cikin alkali na Alkali An sanya shi da alkyabbar alkyali (20kg) a cikin jaket mai matsi tare da matsanancin damuwa tare da matsanancin ciki, to, sarari kuma tsarkake shi da nitrogen don tsarkakewa tare da nitrogen don tsarkakewa tare da nitrogen don kawar da oxygen daga reactor. To, zazzabi a cikin mai reactor an sarrafa shi da karfe 60 ℃ yayin da ake gudanarwa na ciki.
Sa'an nan kuma 2.4kg dme an ƙara kuma zazzabi a cikin reactor an sarrafa zuwa 60 ℃. Bayan ƙari na Dimethyl, an ƙara chloride chloride da methylene chloride zuwa Naih 1.97, da zazzabi a cikin mai reactor an sarrafa shi daga 60 ℃ zuwa 80 ℃. Bayan ƙara chllomomethane da propylelene opide, zazzabi a cikin reactor an sarrafa shi daga 80 ℃ zuwa 90 ℃. Bugu da kari, da amsawar da aka yi na mintina 20 a 90 ℃.
An cire gas daga mai martaba da kuma danyen seltelypyl Methyl selulululule an cire shi daga reactor. Zaɓuɓɓuka na zafin jiki na ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ta ce 62 ℃. Auna yawan cumulati 50% girman barbashi a cikin cumulates barbashi mai yawa dangane da rabo na hydroxypropyl methyl sel sleting, kowane yana da wani daban.
A sakamakon haka, matsakaiciyar barbashi girman m barbashi ne 6.2mm. An gabatar da selpolulopyl da aka samu Hydroxypyl na Methyl a cikin wani cigaba letader (KRC KRC Kerader S1, L / D, Rotation Spell Pellelulopopyl methyl selululose aka samu. Sakamakon irin matakan da ke daidai ta amfani da screens 5 tare da masu girma dabam tare da girma daban-daban, matsakaici na barbashi shine 1.4mm. Dingara ruwa 80 ℃ a cikin ruwan zafi mai zafi zuwa ga bazu na hydroxypyl methyl selulose a cikin tanki da ikon zazzabi na jaket. Yawan nauyin nauyin da aka bazu na hydroxypledy hydroxypyl methyl selulose zuwa jimlar adadin slurry shine 0.1, kuma ana samun slurry. The slurry an zuga shi a akai zazzabi na 80 ℃ tsawon minti 60.
Sa'an nan kuma, za a kawo slurry ga saurin juyawa na 0.5 rpm da pre-tace matsin lamba mai zafi (bhs Sontthofen samfur). Zazzabi na grout ne 93 ℃. Yi amfani da famfo don samar da slurry, matsin wanka na famfo shine 0.2PTA. Girman busar girman matsin lambar matsin lamba shine 80μm, kuma yankin tace shine 0.12M2. The slurry da aka kawo zuwa ga Rotary Matattara ta hanyar tace matatar kuma ya canza zuwa cake tace. A sakamakon tace cake ana kawo shi tare da 0.3mpta tururi da ruwa mai zafi 95 da karfi daga sel na 10.0 zuwa ga m selullulopropyl methyl selpulose, wanda a to, tace ta tace.
Ana ba da ruwan zafi ta hanyar famfo a matsa matsin lamba na 0.2PTA. Bayan an kawo ruwa mai zafi, 0.3mp tururi ke samawa. Bayan haka, bayan wanke kayayyakin da aka cire daga saman tace ta hanyar scraper da cire shi daga injin wanki. Matakan da ke ba da slurry don dakatar da kayan wanke kayayyakin da za'ayi ci gaba. Kamar yadda aka auna ta amfani da zafi - bushewa hygrometer, ruwa abun ciki na wanke samfurin don haka sakewa shine 52.8%. A wanke kayayyakin daga tace matsin lamba an bushe ta hanyar bushewa da iska a 80 ℃, kuma an murƙushe shi cikin motar nasara don samun ƙwayar ta hydroxypropyl methyl pellulose.
2.aturi
Ana amfani da samfurin HPMC azaman tsafi, watsawa, mai ban sha'awa, emulsifier da magudanar masana'antu. Hakanan ana amfani da shi sosai a cikin rani rudani, petrochemical, petrochemical, yumbu, fata, fata, fata, kayan fata da sauran masana'antu.
Lokacin Post: Mar-23-2022