HydroxyPropyl Methyl Celllose (Hyppimellose) ni ifu ya selile yera cyangwa igishishwa gifite imitungo yo gushonga mumazi akonje. Itsinda rya HydroxyPropyl na methyl itsinda ni ether bond na selile inLacose glucous injeni ihujwe, ni selile itari ionic ivanze ether. Nibisanzwe, polymer polymer, viscoelastike bikunze gukoreshwa mumaso ya ophthalmology nka lubricient cyangwa nkabakuru cyangwa abakuru mubiyobyabwenge
Imyiteguro ya
Gukuramo impapuro za kraft hamwe na α-selile ibikubiye muri 97%, virusire yimbere ya 720ml / G hamwe nuburebure bwa fibre ya 29%. Pulpas yavuyemo noneho yarasinzira kugirango ikureho ibirenga 49% naoh apheous igisubizo cyo kubona selile ya Alkali. Ikigereranyo cyibiro cya (49% Naoh mumazi) Kuri (ibice bikomeye muri Pulp) mu ntambwe yo kudahinduka. Cellulose ya Alkali (20kg) Rero yabonetse yashyizwe mu kaga gakondo ka jacketed moteri hamwe no guhindagurika imbere hanyuma ugakaraba kandi ugasukura gaze ya azote kugirango ikureho ogisijeni muri reaksitor. Noneho, ubushyuhe muri Reaction bwagenzurwaga na 60 ℃, mugihe kimaze imbere imbere cyakozwe. Noneho Pulp) 1.97, n'ubushyuhe muri Reaction bwagenzurwaga kuva kuri 60 ° C kugeza 80 ° C. Nyuma ya chloromethane na promode ya proglenethane na promodelene, ubushyuhe muri Reaction bwagenzuwe na 80 ℃ kugeza 90 ℃. Byongeye kandi, reaction yakomeje kuri 90 ° C muminota 20. Noneho, gaze isezererwa muri reacttor, na hydroxyproyl methyl methyl Methyl Methulose yakuwe muri reaction. Ubushyuhe bwa hydroxypropyl methylcellse yari 62 ℃ igihe yakuweho. Gupima ingano ya 50% murwego rwo gukwirakwiza uburemere bushingiye ku gipimo cyagenwe hashingiwe ku gipimo cya hydroxyPropyl methylcelliulose irengane muri ecran ya ecran ya ecran, buri kimwe gifite ubunini butandukanye. Nkigisubizo, impuzandengo yubunini bwimiterere ikabije ni 6.2mm. Ababonye HordroxyPropyl Methylcellsellse yatangijwe muri Biaxial S1, 10.12, Umuvuduko w'imbere 150rpm) ku muvuduko wa 10 kr ku gaciro. Nkuko byapimwe kimwe ukoresheje ecran eshanu hamwe nubunini butandukanye bwo gufungura, impuzandengo yikigereranyo yari 1.4mm. Gucibwa nongeyeho amazi ashyushye kuri 80 ° C kuri hydroxypropyl methylcellropyl methylcellropyl methylcellrose) yahinduwe kuri 0.1. Gutandukana byatewe n'ubushyuhe buri gihe cya 80 ° C muminota 60. Noneho, ibisebanya bitangwa kumuvuduko wigituba (BHS Sonhofen ibicuruzwa) hamwe numuvuduko wa 0.5 rpm no gushyuha. Ubushyuhe bwo gucibwa ni 93 ℃. Igitonyanga gitangwa na pompe hamwe nigitutu cya nyuma cya 0.2. Ingano yo gufungura igitutu cyumukino ni 80μm, kandi agace ko kurwara ni 0.12m2. Igitonyanga cyatanzwe ku muyunguruzo ka Rotary ushungura unyuze mu kuyungurura no guhinduka muyungurura cake. Cake yavuyemo yagaburiwe hamwe na 0.3mpa n'amazi ashyushye kuri 95 ° C kugeza ku kigero gihamye cya HordroxyPropyl MethylcellPese hanyuma ikinyuza muyungurura. Amazi ashyushye atangwa na pompe afite umuvuduko ukabije wa 0.2. Nyuma y'amazi ashyushye atangwa, 0.3Mpuke wa Steam yatanzwe. Ibicuruzwa byogejwe hejuru yiyungurura nyuma bikurwaho binyuze mu musinda kandi nsohora mukaraba. Intambwe zihoraho ziva mu buryo bwo gutabarya kugirango usohoke ibicuruzwa byogejwe. Amazi yibicuruzwa byogejwe yari 52.8% nkuko byapimwe no gushyushya hygrometero. Ibicuruzwa byogejwe bivuye ku muyunguruzizo ka Rotary wumye ukoresheje umwuka uhira kuri 80 ° C hanyuma ujanjaguwe mu ruganda rukora intsinzi y'ingaruka zo kubona hydroxyPropyl methylcellse.
gusaba
Iki gicuruzwa gikoreshwa nkumukozi wijimye, ukwirakwiza, binder, emalifier na stabilizer mu nganda zimyenda. Ibikoreshwa cyane muri synthectic resin, petrochemical, ceramic, impapuro, uruhu, ubuvuzi, kwisiga, kwisiga nizindi nganda.
Igihe cyagenwe: Feb-20-2025