Hyxyethyl cellulose ni iki?

Hyxyethyl cellulose ni iki?

Hydroxyethyl cellulose (HEC), ikintu cy'umuhondo wera cyangwa w'umuhondo ukeye, kitagira impumuro, kidahumanya cyangwa gifite ifu, gitegurwa hakoreshejwe uburyo bwo gusya selulosi ya alkaline na oxide ya ethylene (cyangwa chlorohydrin), biri mu bwoko bwa ethers za selulosi zishonga za Nonionic. Kubera ko HEC ifite imiterere myiza nko gukurura, guhagarika, gukwirakwiza, gukurura, guhuza, gukora filime, kurinda ubushuhe no gutanga colloids zirinda, yakoreshejwe cyane mu gushakisha amavuta, gusiga irangi, kubaka, imiti n'ibiribwa, imyenda, gukora impapuro na polymer. Polimerization n'ahandi.

Hydroxyethyl cellulose ikoreshwa cyane mu nganda zikora irangi. Reka turebere hamwe uburyo ikora mu irangi:

Bigenda bite iyo hydroxyethyl cellulose ihuye n'ibisigazwa bishingiye ku mazi?

Nk'umusemburo utari uwoni, hydroxyethyl cellulose ifite imiterere ikurikira usibye gukomera, guhagarika, gufatanya, kuremba, gukora filime, gukwirakwiza, kubika amazi no gutanga colloids zirinda:

HEC ishongeshwa mu mazi ashyushye cyangwa akonje, kandi ntigwa iyo ubushyuhe bwinshi cyangwa ishyushye, bigatuma igira imiterere itandukanye yo gushonga no gushonga, ndetse no kudashyuha cyane;

Ubushobozi bwo kubika amazi buri kabiri kurusha methyl cellulose, kandi bufite uburyo bwo kugenzura neza amazi;

Idakoresha ioni ubwayo ishobora kubana n'izindi polymer nyinshi zishobora gushonga mu mazi, surfactants, n'umunyu, kandi ni imashini nziza cyane ikora colloidal irimo electrolyte nyinshi;

Ugereranyije na selulosi ya methyl na selulosi ya hydroxypropyl methyl, ubushobozi bwo gutatanyaHECni bibi cyane, ariko ubushobozi bwo kurinda colloid ni bwo bukomeye cyane.

Kubera ko hydroxyethyl cellulose itunganyijwe ku buso ari ikintu gikomeye gifite ifu cyangwa fibre, Shandong Heda ikwibutsa kwita ku ngingo zikurikira mu gihe utegura inzoga ya hydroxyethyl cellulose:

(1) Mbere na nyuma yo kongeramo hydroxyethyl cellulose, igomba gukomeza kuvanga kugeza igihe umuti uboneye neza kandi usobanutse.

(2) Igomba gushyirwa buhoro buhoro mu mwobo uvangavanga, kandi ntugahuze neza hydroxyethyl cellulose na hydroxyethyl cellulose mu mwobo uvangavanga ku bwinshi cyangwa mu buryo bw'udusimba n'udupira.

(3) Ubushyuhe bw'amazi n'agaciro ka pH by'amazi bifite isano igaragara n'ishonga rya hydroxyethyl cellulose, bityo rero bigomba kwitabwaho cyane.

(4) Ntuzigere wongeramo ibintu bimwe na bimwe bya alkaline mu ruvange mbere yuko ifu ya hydroxyethyl cellulose itoswa n'amazi. Kongera pH nyuma yo kuyitose bizafasha mu gushonga.

(5) Uko bishoboka kose, ongeramo umuti urwanya udukoko mbere y'igihe.

(6) Mu gihe ukoresha hydroxyethyl cellulose ifite ubukana bwinshi, igipimo cy'inzoga y'umubyeyi ntikigomba kurenza 2.5-3% (ukurikije uburemere), bitabaye ibyo inzoga y'umubyeyi iragoye kuyifata.