Methyl cellulose ether

1. Astaamaha:

(1). Haysashada biyaha: Tan iyo markiiMethyl cellulose etheralaabtu waxay nuugi kartaa xaddi badan oo biyo ah, waxay si fiican u hayn kartaa biyaha hoobiye iyo gypsum.

(2). Haysashada qaabka: xalkeeda aqueous waxay leedahay sifooyin gaar ah oo viscoelastic ah, kaas oo ilaalin kara qaabka alaabta dhoobada.

(3). Dufanka: MC waxay yarayn kartaa isku-xidhka isku-xidhka waxayna wanaajin kartaa wax-soo-saarka saliidda ee alaabta dhoobada iyo shubka ah.

(4). Xasiloonida qiimaha PH: viscosity ee xal aqueous si dhib leh u saameeyaa acid ama alkali. Xalkeeda aqueous ayaa weli ah mid deggan marka loo eego cabbirka pH ballaaran, guud ahaan inta u dhaxaysa 3.0 iyo 11.0.

(5). Guryaha filimada-samaynta: MC waxay samayn kartaa filim adag, dabacsanaan iyo hufan oo leh caabbinta saliidda wanaagsan.

2. qaacidada molecular:

N: heerka polymerization;R: -H, -CH3 ama CH2CHOHCH3

3.Guryaha Jirka iyo Kiimikada

Habka kala dirida:

Marka hore kuleyli biyaha ilaa 80-90C, si tartiib ah ugu dar MC hoos walaaq joogto ah, sug ilaa heerkulku hoos u dhaco, ka dibna qabooji si aad u sameysid xal aqueous labis ah. Ama ku dar saddex-meelood meel saddex-meelood laba meel biyaha loo baahan yahay marka hore, kuleyl ilaa 80-90 ° C, si tartiib ah ugu dar MC hoos walaaq joogto ah, ka dib balaarinta, ku dar inta hartay biyaha qabow, oo qabooji.