HEC ee alaabada gaarka ah ee darajada qurxinta

HydroxyethylcelluloseHECwaa polymer-ka aan-ionic-ka ahayn ee biyaha ku milma oo ku milma biyaha kulul iyo kuwa qabowba. Taxanaha Hydroxyethylcellulose HEC wuxuu leeyahay viscosities ballaaran oo kala duwan, iyo xalalka aqueous waa dhammaan dareerayaasha aan Newtonian.

Hydroxyethyl cellulose waa wax lagu daro waxyaabaha kiimikaad ee maalinlaha ah. Waxa kaliya ma hagaajin kartaa viscosity ee dareeraha ama emulsion isku qurxiyo, laakiin sidoo kale hagaajinaysaa kala firidhsan iyo xasiloonida xumbo.

faa'iido:
1.Waxay leedahay fuuqbax aad u wanaagsan.
2. Leh joogtayn iyo buuxnaan weyn.
3. Hantida filim samaynta heer sare ah.
4. Waxay leedahay wax qabad aad u sarreeya.
5.Waxay leedahay heer aad u fiican oo beddelaad ah si loo hubiyo xasilloonida caariyaysiga muddada-dheer ee alaabta.

Darajada Polymerization:
Waxaa jira saddex kooxood oo hydroxyl ah oo ku yaala unug kasta oo anhydroglucose ah oo ku jira cellulose, kaas oo lagu daaweeyo alkali ee xalka sodium hydroxide ee aqueous si loo helo cusbada sodium cellulose, ka dibna la maro falcelinta etherification leh ethylene oxide si loo sameeyo ether hydroxyethyl cellulose ether. Inta lagu jiro habka isku-dhafka ah ee cellulose hydroxyethyl, ethylene oxide waxay bedeli kartaa kooxaha hydroxyl ee cellulose, waxayna mari kartaa falcelinta silsiladda polymerization ee kooxaha hydroxyl ee kooxaha la beddelay.

Hydroxyethylcellulose waxay leedahay sifooyin fuuq-bax aad u wanaagsan. Xalka aqueous waa siman oo lebbisan, oo leh dheecaan wanaagsan iyo siman. Sidaa darteed, waxyaabaha la isku qurxiyo ee ay ku jiraan hydroxyethyl cellulose waxay leeyihiin joogtnaansho wanaagsan iyo buuxda weelka, waxayna si fudud ugu faafaan timaha iyo maqaarka marka la marsado. Si weyn loogu isticmaalo qaboojiyaha, maydhista jidhka, saabuunta dareeraha ah, jeelka xiirashada iyo xumbo-baxa, dawada cadayga, carfiyeyaasha adag ee ka-hortagga xuubka, unugyada (caruurta iyo dadka waaweyn), jeelyada saliidda.

Waxa u dheer xakamaynta dareeraha,hydroxyethyl cellulosewaxay leedahay sifooyin sameynta filim heer sare ah. Filimka la sameeyay ayaa la dammaanad qaaday in uu ku jiro xaalad dhamaystiran oo ka hoosaysa 350x iyo 3500x muraayadda iskaanka,waxana ay keentaa dareen maqaarka siman oo aad u fiican marka la marsado waxyaalaha la isku qurxiyo.