Focus on Cellulose ethers

Waa maxay farqiga u dhexeeya hydroxyethyl cellulose iyo ethyl cellulose

Dad badan ma kala saari karaan farqiga u dhexeeya hydroxyethyl cellulose iyo ethyl cellulose. Hydroxyethyl cellulose iyo ethyl cellulose waa laba walxood oo kala duwan. Waxay leeyihiin sifooyinka soo socda.

1 Hydroxyethyl cellulose:
Sida dusha sare ee aan-ionic, marka lagu daro dhumuc, laalitaan, xidhidh, sabeyn, filim samaynta, kala firdhinta, ilaalinta biyaha iyo bixinta kolloidyada ilaalinta, waxay sidoo kale leedahay sifooyinka soo socda:
1. HEC waxay ku milmaysaa biyo kulul ama qabow, oo kuma soo da'in heerkulka sare ama karkarinta, taasoo ka dhigaysa inay leedahay noocyo kala duwan oo milmayn iyo sifooyin viscosity ah, iyo gelation-ka aan kuleylka ahayn;
2. Waa non-ionic waxayna la noolaan kartaa tiro balaadhan oo ah polymers-ka kale ee biyaha-milmi kara, surfactants iyo cusbada, waana dhumuc weyn oo kolloidal ah oo ka kooban xalal koronto leh oo sarreeya;
3. Awoodda haynta biyuhu waxay laban laab ka badan tahay tan methyl cellulose, waxayna leedahay nidaaminta qulqulka wanaagsan.
4. Marka la barbar dhigo methyl cellulose ee la aqoonsan yahay iyo hydroxypropyl methyl cellulose, awoodda kala firdhisan ee HEC waa tan ugu xun, laakiin kolloid difaac ayaa leh awoodda ugu xooggan.

2 Ethyl cellulose
Waa eter cellulose aan-ionic ahayn oo aan lagu milmi karin biyaha laakiin ku milma dareerayaasha organic. Waxay leedahay sifooyinka soo socda:

1. Ma fududa in la gubo.
2. Degenaansho kulayl wanaagsan iyo heerkulbeeg heersare ah oo aad u fiican.
3. Wax midab ah oo iftiinka qoraxda ah.
4. Dabacsanaan wanaagsan.
5. Sifooyin koronto oo wanaagsan.
6. Waxa ay leedahay iska caabin alkali ah oo aad u wanaagsan iyo iska caabbinta aashitada oo daciif ah.
7. Waxqabadka wanaagsan ee gabowga.
8. Iska caabbinta wanaagsan ee milixda, nuugista qabowga iyo qoyaanka.
9. Kiimikooyinka deggan, kaydinta muddada-dheer iyada oo aan xumaanayn.
10. La jaanqaadi kara resins badan iyo ku habboonaanta dhammaan balaastikada.
11. Way fududahay in la beddelo midabka hoos yimaada deegaanka alkaline ee xooggan iyo xaaladaha kulaylka.


Waqtiga boostada: Nov-15-2022
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