Yadda ake yin Elther?

Harkokin Celulose ya ƙunshi inganta sel na halitta na halitta, yawanci ana samo shi ne daga ɓangaren katako ko auduga, ta hanyar jerin abubuwan sunadarai. Mafi yawan nau'ikan sel mai kama da sel mai cike da sel na sel (MC), sellululose selpyl cellulose (carboxymose carloxulose (CMCBOX), da sauransu. Ainihin tsari na iya bambanta dangane da takamaiman eter ether ether, amma babban matakai suna kama da. Ga mai sauƙin bayyanawa:

Janar matakai don sanya cellingose:

1. Source cellulose:

• Abubuwan farawa na farko shine sel na halitta, yawanci ana samun su daga ɓangaren katako ko auduga. Selelulose yawanci a cikin hanyar tsarkakakken pelulose ce.

2. Alkinization:

• Ana bi da sel tare da maganin alkaline, kamar sodium hydroxide (Nodium), don kunna ƙungiyoyin hydroxyl akan sarkar sel. Wannan matakin na alkalization yana da mahimmanci don ci gaba da kasancewa.

3. Ethadation:

• An gabatar da Elerulose na alkyabbar sel maƙerawa, inda aka gabatar da kungiyoyi daban-daban na eret daban daban a kan Pellulose Kackone. Tushen nau'in etherungiyar ether (methyl, hydroxypyeth, hydroxypropyl, carboxymethyl, da sauransu) ya dogara da ethonlulose da ake so.
• Tsarin eThoration ya ƙunshi amsawar sel tare da reagents da suka dace, kamar:
  • Don methyl sel (MC): Jiyya tare da Dimethyl sulfate ko metyl chloride.
  • Don sel sel (hec): magani tare da ethylene oxide.
  • Don Hydroxypyl methyl selululose (hpmc): Jiyya tare da propylelene opide da methyl chloride.
  • Don Carboxymose cellulose (CMC): Jiyya tare da sodium chloroacetatate.

4. Cikakke da wanka:

• Bayan exterabation, sakamakon haifar ne da sel yawanci ana hana shi cire duk wani abu mai saura. Don haka an wanke samfurin don kawar da ƙazanta da samfuran samfurori.

5. Bushewa da miling:

• Enerlulose ether ne bushe don cire danshi danshi sannan kuma milled a cikin kyakkyawan foda. Za'a iya sarrafa girman barbashi dangane da aikace-aikacen da aka nufa.

6. Ikon ingancin:

• Samfurin Sellar Ener na ƙarshe yana fuskantar gwajin ikon sarrafawa don tabbatar da cewa ya cika takamaiman bayani dalla-dalla, gami da dankan danshi, da sauran kaddarorin da suka dace.

Yana da mahimmanci a lura cewa samar da samar da celulose ne ke aiwatar da masana'antun musamman ta amfani da matakan sarrafawa. A takamaiman yanayi, reagents, da kayan aiki da ake amfani da shi na iya bambanta dangane da kayan da ake so na sel mai ether da aikace-aikacen da aka yi nufin. Bugu da kari, matakan aminci suna da mahimmanci yayin tafiyar da hanyoyin sinadarai.