Ibyiza nubwitonzi bwa Hydroxyethyl Cellulose

Hydroxyethyl selulose (HEC)ni umuhondo wera cyangwa umuhondo, udafite impumuro nziza, fibrous idafite uburozi cyangwa ifu ikomeye, itegurwa na etherification reaction ya alkaline selulose na okiside ya Ethylene (cyangwa chlorohydrin). Nonionic soluble selulose ethers. Usibye kubyimba, guhagarika, guhambira, kureremba, gukora firime, gutatanya, kubika amazi no gutanga colloide ikingira, ifite ibintu bikurikira:

1.

2. Ntabwo ari ionic kandi irashobora kubana hamwe nandi moko menshi yandi mazi ashonga polymers, surfactants, nu munyu. Nibyimbye byiza bya colloidal kubyibushye cyane bya electrolyte ibisubizo;

3. Ubushobozi bwo gufata amazi bukubye kabiri ubwa methyl selile, kandi bufite uburyo bwiza bwo gutembera neza.

4. Ugereranije na methyl selulose izwi na hydroxypropyl methyl selulose, ubushobozi bwo gukwirakwiza HEC nububi, ariko ubushobozi bwo gukingira colloid nabwo bukomeye. Bitewe nuburyo bwiza bwo kubyimba, guhagarika, gutatanya, kwigana, gukurikiza, gukora firime, kurinda ubushuhe no gutanga colloide ikingira, HEC yakoreshejwe cyane mubushakashatsi bwamavuta, gutwikira, kubaka, ubuvuzi, ibiryo, imyenda, impapuro na polymer Polymerisation n'indi mirima.

Icyitonderwa:

Kubera ko hydroxyethyl selile yakozwe hejuru yubutaka ari ifu cyangwa selile ikomeye, biroroshye kuyifata no kuyishonga mumazi mugihe ibintu bikurikira byitabwaho. i

1. Mbere na nyuma yo kongeramo hydroxyethyl selulose, igomba guhora ikomeza kugeza igisubizo kiboneye kandi gisobanutse neza. i

2. Igomba guhindurwa buhoro buhoro mu kigega kivanze, ntukongereho mu buryo butaziguye hydroxyethyl selulose cyangwa hydroxyethyl selulose yakoze ibibyimba n'imipira mu kivange. i

3. Ubushyuhe bwamazi nagaciro ka PH mumazi bifitanye isano igaragara no gusesa hydroxyethyl selulose, bityo rero hagomba kwitabwaho byumwihariko. i

4. Ntukongere ibintu bya alkaline bivanze mbere yuko ifu ya hydroxyethyl selulose ishyuha mumazi. Kuzamura agaciro ka PH nyuma yo gushyuha bizafasha gushonga. i

5. Mugihe gishoboka, ongeramo imiti igabanya ubukana hakiri kare. i

6. Iyo ukoresheje hydroxyethyl selulose ifite ubukana bwinshi, ubunini bwibinyobwa by’ababyeyi ntibigomba kuba hejuru ya 2,5-3%, bitabaye ibyo inzoga za nyina zizagorana kubyitwaramo. Hydroxyethyl selulose nyuma yo kuvurwa mubisanzwe ntabwo byoroshye gukora ibibyimba cyangwa imibumbe, ntanubwo bizakora colloide idashonga nyuma yo kongeramo amazi.