Cellulose Ether oo si degdeg ah/si tartiib ah u milma (Daawaynta Dusha sare)

Kala-soocidda Cellulose Ether

Cellulose ether waa erey guud oo loogu talagalay taxane badeecooyin ah oo ay soo saarto falgalka alkali cellulose iyo wakiilka etherifying xaalado gaar ah. Marka alkali cellulose lagu beddelo wakiillo etherifying kala duwan, ethers cellulose kala duwan ayaa la heli doonaa.

Sida laga soo xigtay sifooyinka ionization ee walxaha beddelka ah, ether-yada cellulose waxaa loo qaybin karaa laba qaybood: ionic (sida carboxymethyl cellulose) iyo nonionic (sida methyl cellulose).

Sida ku xusan nooca beddelka, cellulose ether waxaa loo qaybin karaa monoether (sida methyl cellulose) iyo ether isku dhafan (sida hydroxypropyl methyl cellulose).

Sida ku cad milanka kala duwan, waxaa loo qaybin karaa milanka biyaha (sida hydroxyethyl cellulose) iyo milanka dareeraha dabiiciga ah (sida ethyl cellulose).

Ether-yada cellulose-ka ee biyaha ku milma ee loo isticmaalo madaafiicda qalalan ee isku dhafan waxaa loo qaybiyaa ether-yada cellulose-ka ee milma isla markiiba iyo kuwa dusha sare lagu daweeyay ee milma dib u dhaca.

Aaway farqiyadoodu? Sidee si habsami leh loogu habeyn karaa xal biyood oo 2% ah si loogu tijaabiyo viscosity-ga?

Waa maxay daaweynta dusha sare?

Saamaynta ay ku leedahay ether-ka cellulose?

marka hore

Daaweynta dusha sare waa hab si macmal ah loogu sameeyo lakab dusha sare ah oo ku yaal dusha sare ee walax saldhig ah oo leh astaamo farsamo, jireed iyo kiimiko oo ka duwan kan salka.

Ujeedada daaweynta dusha sare ee ether-ka cellulose waa in dib loo dhigo waqtiga lagu darayo ether-ka cellulose iyo biyaha si loo daboolo shuruudaha dhumucda gaabiska ah ee hoobiyaasha rinjiga qaarkood, iyo sidoo kale in la kordhiyo iska caabbinta daxalka ee ether-ka cellulose iyo in la hagaajiyo xasilloonida kaydinta.

Farqiga marka biyaha qabow lagu habeeyo 2% xal biyood ah:

Ether-ka cellulose-ka ee dusha sare lagu daweeyay ayaa si dhakhso ah ugu firdhi kara biyo qabow mana fududa in la isku ururiyo sababtoo ah nuugistiisa gaabiska ah;

Cellulose ether oo aan lahayn daaweyn dusha sare ah, sababtoo ah viscosity-keeda degdegga ah, wuxuu noqon doonaa mid gilgilan ka hor inta uusan si buuxda ugu firdhin biyo qabow, oo uu u nugul yahay isku-darka.

Sidee loo habeeyaa ether-ka cellulose-ka ee aan dusha sare lagu daweyn?

1. Marka hore geli xaddi cayiman oo ah ether cellulose ah oo aan dusha sare lagu daweyn;

2. Kadib ku dar biyo kulul oo ku jira qiyaastii 80 darajo Celsius, miisaanku waa saddex meelood meel mugga biyaha loo baahan yahay, si uu si buuxda u bararsan karo oo u kala firdhi karo;

3. Marka xigta, si tartiib ah ugu shub biyo qabow, miisaanku waa laba meelood meel biyaha harsan ee loo baahan yahay, sii wad walaaq si aad si tartiib ah ugu dhegto, mana jiri doonto isku-darka;

4. Ugu dambeyntii, xaalad miisaan la mid ah, ku rid biyo kulul oo heerkul joogto ah ilaa heerkulku hoos ugu dhaco 20 darajo Celsius, ka dibna tijaabada viscosity-ga ayaa la sameyn karaa!