Hydroxyethyl selulose imiterere nubwitonzi

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

1.

2. Non-ionic ubwayo irashobora kubana hamwe nandi moko menshi yandi mavuta ya elegitoronike ashonga, surfactants hamwe nu munyu, kandi ni umubyimba mwiza wa colloidal urimo ibisubizo byinshi bya electrolyte;

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 colloid ikingira ifite ubushobozi bukomeye. Kubera ko HEC ifite ibyiza byo kubyimba, guhagarika, gutatanya, kwigana, guhuza, gukora firime, kurinda ubushuhe no gutanga colloide ikingira, yakoreshejwe cyane mubushakashatsi bwamavuta, gutwikira, kubaka, ubuvuzi nibiribwa, imyenda, impapuro na polymer Polymerisation n'indi mirima.

Icyitonderwa:

Kubera ko hydroxyethyl selile yakozwe hejuru yubutaka ari ifu cyangwa selile ikomeye, biroroshye gufata no gushonga mumazi mugihe hagaragaye ibibazo bikurikira.

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

2. Igomba gushungurwa mukuvanga gahoro gahoro, kandi ntukongereho na hydroxyethyl selulose yakozwe mubibyimba no mumipira mukivanga.

3. Ubushyuhe bwamazi nagaciro ka pH kumazi bifitanye isano igaragara no gusesa hydroxyethyl selulose, bityo rero tugomba kubyitaho byumwihariko.

4. Ntukigere wongera ibintu bya alkaline bivanze mbere yuko ifu ya hydroxyethyl selulose ishyuha namazi. Kuzamura agaciro ka PH nyuma yo gushyuha bifasha guseswa.

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

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 imirima, kandi ntabwo bizakora colloide idashonga nyuma yo kongeramo amazi.