Methyl cellulose (MC) oo ka samaysan alaabta dabiiciga ah

Methyl cellulose (MC) waa nooc ka mid ah cellulose, kaas oo ah polymer-ka dabiiciga ah ee laga helo gidaarada unugyada dhirta. Cellulose waa mid ka mid ah xeryahooda dabiiciga ah ee ugu badan Dunida, ugu horrayn waxaa laga helaa saxarka alwaax iyo fiilooyinka suufka. MC waxaa laga soo saaray cellulose iyada oo loo marayo taxane falcelin kiimiko ah oo ku lug leh beddelka kooxaha hydroxyl (-OH) ee unugyada cellulose ee kooxaha methyl (-CH3).

Halka MC lafteedu ay tahay iskudhis kiimikaad ah oo wax laga beddelay, walxo cayriin ah, cellulose, ayaa laga soo qaatay ilo dabiici ah. Cellulose waxaa laga soo saari karaa agabyo kala duwan oo geedo ah, oo ay ku jiraan alwaax, suuf, hemp, iyo dhir kale oo fibro ah. Cellulose-ku wuxuu maraa habayn si looga saaro wasakhda oo loogu beddelo qaab la isticmaali karo si loogu soo saaro MC.

Marka cellulose la helo, waxay maraysaa etherification si ay u soo bandhigto kooxaha methyl ee laf dhabarta cellulose, taasoo keentay samaynta methyl cellulose. Habkani waxa uu ku lug leeyahay daawaynta cellulose isku dar ah sodium hydroxide iyo methyl chloride ee xaaladaha la xakameeyey.

Meesha ka soo baxday methyl cellulose waa caddaan ilaa cad-cad, aan ur lahayn, iyo budo aan dhadhamin oo ku milma biyo qabow oo sameeya xal viscous ah. Waxaa si weyn loogu isticmaalaa warshadaha kala duwan, oo ay ku jiraan cuntada, daawooyinka, daryeelka shakhsi ahaaneed, iyo dhismaha, waayo, dhumucdiisuna, xasilin, iyo guryaha-samaynta filimada.

Halka MC uu yahay iskudhis kiimikaad ah oo wax laga beddelay, waxaa laga soo qaatay cellulose dabiici ah, taasoo ka dhigaysa dookh bay'ada iyo deegaanka u saaxiibka ah codsiyo badan.