Cellulose ethers da kuma hanyar samar da iri daya

Samar dacellulose ethersya ƙunshi jerin gyare-gyaren sinadarai zuwa cellulose, wanda ke haifar da abubuwan da aka samo asali tare da kaddarorin na musamman.Mai zuwa shine taƙaitaccen bayani na hanyoyin da ake amfani da su don samar da ethers cellulose:

1. Zaɓin Tushen Cellulose:

• Ana iya samun ethers na cellulose daga tushe daban-daban kamar ɓangaren litattafan almara, auduga, ko wasu kayan shuka.Zaɓin tushen cellulose na iya yin tasiri ga halaye na samfurin ether cellulose na ƙarshe.

2. Tuba:

• Tushen cellulose yana jujjuyawa don rushe zaruruwan su zama mafi kyawun tsari.Ana iya samun buguwa ta hanyar inji, sinadarai, ko haɗin hanyoyin biyu.

3. Tsarkakewa:

• The pulped cellulose yana ƙarƙashin tsarin tsarkakewa don cire ƙazanta, lignin, da sauran abubuwan da ba na cellulosic ba.Tsarkakewa yana da mahimmanci don samun ingantaccen kayan cellulose.

4. Kunna Cellulose:

• Ana kunna cellulose mai tsabta ta hanyar kumburi a cikin maganin alkaline.Wannan matakin yana da mahimmanci don sa cellulose ya ƙara yin aiki yayin amsawar etherification na gaba.

5. Ra'ayin Etherification:

• Cellulose da aka kunna yana fuskantar etherification, inda aka gabatar da ƙungiyoyin ether zuwa ƙungiyoyin hydroxyl akan sarkar polymer cellulose.Ma'aikatan etherifying na yau da kullun sun haɗa da ethylene oxide, propylene oxide, sodium chloroacetate, methyl chloride, da sauransu.
• Yawanci ana gudanar da aikin a ƙarƙashin yanayin sarrafawa na zafin jiki, matsa lamba, da pH don cimma matakin da ake so na maye gurbin (DS) da kuma guje wa halayen gefe.

6. Tsakani da Wanka:

• Bayan amsawar etherification, samfuran galibi ana bazuwa don cire wuce haddi na reagents ko samfuran.Ana yin matakan wankewa na gaba don kawar da sauran sinadarai da ƙazanta.

7. Bushewa:

• An bushe cellulose mai tsabta da etherified don samun samfurin ether cellulose na ƙarshe a cikin foda ko nau'i na granular.

8. Kula da inganci:

• Daban-daban na nazari, gami da haɓakar maganadisu na nukiliya (NMR) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, da chromatography, ana amfani da su don sarrafa inganci.DS ana sa ido sosai don tabbatar da daidaito.

9. Samfura da Aikace-aikace:

• Sa'an nan kuma an tsara ether cellulose zuwa maki daban-daban don saduwa da takamaiman buƙatun aikace-aikace daban-daban.Ethers cellulose daban-daban sun dace da masana'antu daban-daban, kamar gini, magunguna, abinci, sutura, da ƙari.

Yana da mahimmanci a lura cewa takamaiman hanyoyin da yanayi na iya bambanta dangane da samfurin ether cellulose da ake so da aikace-aikacen da aka yi niyya.Masu sana'a sukan yi amfani da tsarin mallakar mallaka don samar da ethers cellulose tare da takamaiman kaddarorin da aka keɓance don biyan bukatun masana'antu daban-daban.