Eter cellulose iyo habka loo soo saaro isku mid ah

Wax soo saarka eeethers celluloseWaxay ku lug leedahay isbeddello kiimiko oo taxane ah oo lagu sameeyo cellulose, taasoo keentay in la soo saaro sifooyin gaar ah. Kuwa soo socda waa dulmar guud oo ku saabsan hababka loo isticmaalo soo saarista ethers cellulose:

1. Xulashada isha Cellulose:

• Ether-ka Cellulose waxaa laga soo saari karaa ilo kala duwan sida saxarka alwaax, suufka suufka, ama walxo kale oo ku salaysan dhirta. Doorashada isha cellulose waxay saameyn kartaa sifooyinka ether-ka ugu dambeeya ee cellulose.

2. Duubista:

• Ilaha cellulose-ku waxa uu maraa qulqulo si uu fiilooyinka u jebiyo qaab la maamuli karo. Duubista waxaa lagu gaari karaa farsamo, kiimiko, ama isku darka labada hab.

3. Nadiifinta:

• Cellulose-ka la miiray ayaa la mariyaa hababka sifaynta si looga saaro wasakhda, lignin, iyo qaybaha kale ee aan unugyadu ahayn. Nadiifintu waxay lagama maarmaan u tahay helitaanka walxo cellulose oo tayo sare leh.

4. Firfircoonida Cellulose:

• Cellulose-ka la safeeyey waxa lagu hawlgeliyaa barar ku jira xal alkaline ah. Talaabadani waxay muhiim u tahay ka dhigida cellulose mid firfircoon inta lagu jiro falcelinta eterification ee xiga.

5. Falcelinta Etherification:

• Cellulose-ka firfircooni wuxuu maraa etherification, halkaasoo kooxaha etherka lagu soo bandhigo kooxaha hydroxyl ee silsiladda polymer cellulose. Waxyaalaha caadiga ah ee etherifying ka mid ah ethylene oxide, propylene oxide, sodium chloroacetate, methyl chloride, iyo kuwa kale.
• Dareen-celinta waxaa sida caadiga ah lagu qabtaa xaaladaha heerkulka, cadaadiska, iyo pH si loo gaaro heerka la rabo ee beddelka (DS) iyo in laga fogaado falcelinta dhinaca.

6. Dhexdhexaadinta iyo Dhaqidda:

• Dareen-celinta etherification ka dib, badeecada ayaa inta badan la dhex-dhexaadiyaa si meesha looga saaro reagents-ka xad-dhaafka ah ama alaabada. Tallaabooyinka dhaqidda xiga ayaa la sameeyaa si loo baabi'iyo kiimikooyinka haraaga ah iyo wasakhda.

7. Qalajinta:

• Cellulose-ka la nadiifiyey oo la etherified waa la qalajiyey si loo helo badeecada ether-ka cellulose-ka ugu dambeeya ee budada ama qaabka granular.

8. Xakamaynta tayada:

• Farsamooyin kala duwan oo falanqayn ah, oo ay ku jiraan nukliyeerka magnetic resonance (NMR) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, iyo chromatography, ayaa loo shaqeeyaa si loo xakameeyo tayada. DS si dhow ayaa loola socdaa si loo hubiyo joogtaynta.

9. Samaynta iyo Codsiga:

• Eter-ka cellulose ayaa markaa loo qaabeeyey darajooyin kala duwan si loo buuxiyo shuruudaha gaarka ah ee codsiyada kala duwan. Eter-yada cellulose ee kala duwan waxay ku habboon yihiin warshado kala duwan, sida dhismaha, daawooyinka, cuntada, dahaarka, iyo kuwo kale.

Waxaa muhiim ah in la ogaado in hababka gaarka ah iyo shuruudaha ay kala duwanaan karaan iyadoo lagu saleynayo sheyga etherka cellulose ee la doonayo iyo codsiga loogu talagalay. Wax-soo-saarayaashu waxay inta badan shaqaaleeyaan habab lahaansho si ay u soo saaraan ethers cellulose leh sifooyin gaar ah oo loogu talagalay inay daboolaan baahiyaha warshado kala duwan.